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Diffstat (limited to 'src/hw/arm/omap1.c')
| -rw-r--r-- | src/hw/arm/omap1.c | 4079 |
1 files changed, 4079 insertions, 0 deletions
diff --git a/src/hw/arm/omap1.c b/src/hw/arm/omap1.c new file mode 100644 index 0000000..6b1c076 --- /dev/null +++ b/src/hw/arm/omap1.c @@ -0,0 +1,4079 @@ +/* + * TI OMAP processors emulation. + * + * Copyright (C) 2006-2008 Andrzej Zaborowski <balrog@zabor.org> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 or + * (at your option) version 3 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include "hw/boards.h" +#include "hw/hw.h" +#include "hw/arm/arm.h" +#include "hw/arm/omap.h" +#include "sysemu/sysemu.h" +#include "hw/arm/soc_dma.h" +#include "sysemu/block-backend.h" +#include "sysemu/blockdev.h" +#include "qemu/range.h" +#include "hw/sysbus.h" + +/* Should signal the TCMI/GPMC */ +uint32_t omap_badwidth_read8(void *opaque, hwaddr addr) +{ + uint8_t ret; + + OMAP_8B_REG(addr); + cpu_physical_memory_read(addr, &ret, 1); + return ret; +} + +void omap_badwidth_write8(void *opaque, hwaddr addr, + uint32_t value) +{ + uint8_t val8 = value; + + OMAP_8B_REG(addr); + cpu_physical_memory_write(addr, &val8, 1); +} + +uint32_t omap_badwidth_read16(void *opaque, hwaddr addr) +{ + uint16_t ret; + + OMAP_16B_REG(addr); + cpu_physical_memory_read(addr, &ret, 2); + return ret; +} + +void omap_badwidth_write16(void *opaque, hwaddr addr, + uint32_t value) +{ + uint16_t val16 = value; + + OMAP_16B_REG(addr); + cpu_physical_memory_write(addr, &val16, 2); +} + +uint32_t omap_badwidth_read32(void *opaque, hwaddr addr) +{ + uint32_t ret; + + OMAP_32B_REG(addr); + cpu_physical_memory_read(addr, &ret, 4); + return ret; +} + +void omap_badwidth_write32(void *opaque, hwaddr addr, + uint32_t value) +{ + OMAP_32B_REG(addr); + cpu_physical_memory_write(addr, &value, 4); +} + +/* MPU OS timers */ +struct omap_mpu_timer_s { + MemoryRegion iomem; + qemu_irq irq; + omap_clk clk; + uint32_t val; + int64_t time; + QEMUTimer *timer; + QEMUBH *tick; + int64_t rate; + int it_ena; + + int enable; + int ptv; + int ar; + int st; + uint32_t reset_val; +}; + +static inline uint32_t omap_timer_read(struct omap_mpu_timer_s *timer) +{ + uint64_t distance = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - timer->time; + + if (timer->st && timer->enable && timer->rate) + return timer->val - muldiv64(distance >> (timer->ptv + 1), + timer->rate, get_ticks_per_sec()); + else + return timer->val; +} + +static inline void omap_timer_sync(struct omap_mpu_timer_s *timer) +{ + timer->val = omap_timer_read(timer); + timer->time = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); +} + +static inline void omap_timer_update(struct omap_mpu_timer_s *timer) +{ + int64_t expires; + + if (timer->enable && timer->st && timer->rate) { + timer->val = timer->reset_val; /* Should skip this on clk enable */ + expires = muldiv64((uint64_t) timer->val << (timer->ptv + 1), + get_ticks_per_sec(), timer->rate); + + /* If timer expiry would be sooner than in about 1 ms and + * auto-reload isn't set, then fire immediately. This is a hack + * to make systems like PalmOS run in acceptable time. PalmOS + * sets the interval to a very low value and polls the status bit + * in a busy loop when it wants to sleep just a couple of CPU + * ticks. */ + if (expires > (get_ticks_per_sec() >> 10) || timer->ar) + timer_mod(timer->timer, timer->time + expires); + else + qemu_bh_schedule(timer->tick); + } else + timer_del(timer->timer); +} + +static void omap_timer_fire(void *opaque) +{ + struct omap_mpu_timer_s *timer = opaque; + + if (!timer->ar) { + timer->val = 0; + timer->st = 0; + } + + if (timer->it_ena) + /* Edge-triggered irq */ + qemu_irq_pulse(timer->irq); +} + +static void omap_timer_tick(void *opaque) +{ + struct omap_mpu_timer_s *timer = (struct omap_mpu_timer_s *) opaque; + + omap_timer_sync(timer); + omap_timer_fire(timer); + omap_timer_update(timer); +} + +static void omap_timer_clk_update(void *opaque, int line, int on) +{ + struct omap_mpu_timer_s *timer = (struct omap_mpu_timer_s *) opaque; + + omap_timer_sync(timer); + timer->rate = on ? omap_clk_getrate(timer->clk) : 0; + omap_timer_update(timer); +} + +static void omap_timer_clk_setup(struct omap_mpu_timer_s *timer) +{ + omap_clk_adduser(timer->clk, + qemu_allocate_irq(omap_timer_clk_update, timer, 0)); + timer->rate = omap_clk_getrate(timer->clk); +} + +static uint64_t omap_mpu_timer_read(void *opaque, hwaddr addr, + unsigned size) +{ + struct omap_mpu_timer_s *s = (struct omap_mpu_timer_s *) opaque; + + if (size != 4) { + return omap_badwidth_read32(opaque, addr); + } + + switch (addr) { + case 0x00: /* CNTL_TIMER */ + return (s->enable << 5) | (s->ptv << 2) | (s->ar << 1) | s->st; + + case 0x04: /* LOAD_TIM */ + break; + + case 0x08: /* READ_TIM */ + return omap_timer_read(s); + } + + OMAP_BAD_REG(addr); + return 0; +} + +static void omap_mpu_timer_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + struct omap_mpu_timer_s *s = (struct omap_mpu_timer_s *) opaque; + + if (size != 4) { + omap_badwidth_write32(opaque, addr, value); + return; + } + + switch (addr) { + case 0x00: /* CNTL_TIMER */ + omap_timer_sync(s); + s->enable = (value >> 5) & 1; + s->ptv = (value >> 2) & 7; + s->ar = (value >> 1) & 1; + s->st = value & 1; + omap_timer_update(s); + return; + + case 0x04: /* LOAD_TIM */ + s->reset_val = value; + return; + + case 0x08: /* READ_TIM */ + OMAP_RO_REG(addr); + break; + + default: + OMAP_BAD_REG(addr); + } +} + +static const MemoryRegionOps omap_mpu_timer_ops = { + .read = omap_mpu_timer_read, + .write = omap_mpu_timer_write, + .endianness = DEVICE_LITTLE_ENDIAN, +}; + +static void omap_mpu_timer_reset(struct omap_mpu_timer_s *s) +{ + timer_del(s->timer); + s->enable = 0; + s->reset_val = 31337; + s->val = 0; + s->ptv = 0; + s->ar = 0; + s->st = 0; + s->it_ena = 1; +} + +static struct omap_mpu_timer_s *omap_mpu_timer_init(MemoryRegion *system_memory, + hwaddr base, + qemu_irq irq, omap_clk clk) +{ + struct omap_mpu_timer_s *s = g_new0(struct omap_mpu_timer_s, 1); + + s->irq = irq; + s->clk = clk; + s->timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, omap_timer_tick, s); + s->tick = qemu_bh_new(omap_timer_fire, s); + omap_mpu_timer_reset(s); + omap_timer_clk_setup(s); + + memory_region_init_io(&s->iomem, NULL, &omap_mpu_timer_ops, s, + "omap-mpu-timer", 0x100); + + memory_region_add_subregion(system_memory, base, &s->iomem); + + return s; +} + +/* Watchdog timer */ +struct omap_watchdog_timer_s { + struct omap_mpu_timer_s timer; + MemoryRegion iomem; + uint8_t last_wr; + int mode; + int free; + int reset; +}; + +static uint64_t omap_wd_timer_read(void *opaque, hwaddr addr, + unsigned size) +{ + struct omap_watchdog_timer_s *s = (struct omap_watchdog_timer_s *) opaque; + + if (size != 2) { + return omap_badwidth_read16(opaque, addr); + } + + switch (addr) { + case 0x00: /* CNTL_TIMER */ + return (s->timer.ptv << 9) | (s->timer.ar << 8) | + (s->timer.st << 7) | (s->free << 1); + + case 0x04: /* READ_TIMER */ + return omap_timer_read(&s->timer); + + case 0x08: /* TIMER_MODE */ + return s->mode << 15; + } + + OMAP_BAD_REG(addr); + return 0; +} + +static void omap_wd_timer_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + struct omap_watchdog_timer_s *s = (struct omap_watchdog_timer_s *) opaque; + + if (size != 2) { + omap_badwidth_write16(opaque, addr, value); + return; + } + + switch (addr) { + case 0x00: /* CNTL_TIMER */ + omap_timer_sync(&s->timer); + s->timer.ptv = (value >> 9) & 7; + s->timer.ar = (value >> 8) & 1; + s->timer.st = (value >> 7) & 1; + s->free = (value >> 1) & 1; + omap_timer_update(&s->timer); + break; + + case 0x04: /* LOAD_TIMER */ + s->timer.reset_val = value & 0xffff; + break; + + case 0x08: /* TIMER_MODE */ + if (!s->mode && ((value >> 15) & 1)) + omap_clk_get(s->timer.clk); + s->mode |= (value >> 15) & 1; + if (s->last_wr == 0xf5) { + if ((value & 0xff) == 0xa0) { + if (s->mode) { + s->mode = 0; + omap_clk_put(s->timer.clk); + } + } else { + /* XXX: on T|E hardware somehow this has no effect, + * on Zire 71 it works as specified. */ + s->reset = 1; + qemu_system_reset_request(); + } + } + s->last_wr = value & 0xff; + break; + + default: + OMAP_BAD_REG(addr); + } +} + +static const MemoryRegionOps omap_wd_timer_ops = { + .read = omap_wd_timer_read, + .write = omap_wd_timer_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void omap_wd_timer_reset(struct omap_watchdog_timer_s *s) +{ + timer_del(s->timer.timer); + if (!s->mode) + omap_clk_get(s->timer.clk); + s->mode = 1; + s->free = 1; + s->reset = 0; + s->timer.enable = 1; + s->timer.it_ena = 1; + s->timer.reset_val = 0xffff; + s->timer.val = 0; + s->timer.st = 0; + s->timer.ptv = 0; + s->timer.ar = 0; + omap_timer_update(&s->timer); +} + +static struct omap_watchdog_timer_s *omap_wd_timer_init(MemoryRegion *memory, + hwaddr base, + qemu_irq irq, omap_clk clk) +{ + struct omap_watchdog_timer_s *s = g_new0(struct omap_watchdog_timer_s, 1); + + s->timer.irq = irq; + s->timer.clk = clk; + s->timer.timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, omap_timer_tick, &s->timer); + omap_wd_timer_reset(s); + omap_timer_clk_setup(&s->timer); + + memory_region_init_io(&s->iomem, NULL, &omap_wd_timer_ops, s, + "omap-wd-timer", 0x100); + memory_region_add_subregion(memory, base, &s->iomem); + + return s; +} + +/* 32-kHz timer */ +struct omap_32khz_timer_s { + struct omap_mpu_timer_s timer; + MemoryRegion iomem; +}; + +static uint64_t omap_os_timer_read(void *opaque, hwaddr addr, + unsigned size) +{ + struct omap_32khz_timer_s *s = (struct omap_32khz_timer_s *) opaque; + int offset = addr & OMAP_MPUI_REG_MASK; + + if (size != 4) { + return omap_badwidth_read32(opaque, addr); + } + + switch (offset) { + case 0x00: /* TVR */ + return s->timer.reset_val; + + case 0x04: /* TCR */ + return omap_timer_read(&s->timer); + + case 0x08: /* CR */ + return (s->timer.ar << 3) | (s->timer.it_ena << 2) | s->timer.st; + + default: + break; + } + OMAP_BAD_REG(addr); + return 0; +} + +static void omap_os_timer_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + struct omap_32khz_timer_s *s = (struct omap_32khz_timer_s *) opaque; + int offset = addr & OMAP_MPUI_REG_MASK; + + if (size != 4) { + omap_badwidth_write32(opaque, addr, value); + return; + } + + switch (offset) { + case 0x00: /* TVR */ + s->timer.reset_val = value & 0x00ffffff; + break; + + case 0x04: /* TCR */ + OMAP_RO_REG(addr); + break; + + case 0x08: /* CR */ + s->timer.ar = (value >> 3) & 1; + s->timer.it_ena = (value >> 2) & 1; + if (s->timer.st != (value & 1) || (value & 2)) { + omap_timer_sync(&s->timer); + s->timer.enable = value & 1; + s->timer.st = value & 1; + omap_timer_update(&s->timer); + } + break; + + default: + OMAP_BAD_REG(addr); + } +} + +static const MemoryRegionOps omap_os_timer_ops = { + .read = omap_os_timer_read, + .write = omap_os_timer_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void omap_os_timer_reset(struct omap_32khz_timer_s *s) +{ + timer_del(s->timer.timer); + s->timer.enable = 0; + s->timer.it_ena = 0; + s->timer.reset_val = 0x00ffffff; + s->timer.val = 0; + s->timer.st = 0; + s->timer.ptv = 0; + s->timer.ar = 1; +} + +static struct omap_32khz_timer_s *omap_os_timer_init(MemoryRegion *memory, + hwaddr base, + qemu_irq irq, omap_clk clk) +{ + struct omap_32khz_timer_s *s = g_new0(struct omap_32khz_timer_s, 1); + + s->timer.irq = irq; + s->timer.clk = clk; + s->timer.timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, omap_timer_tick, &s->timer); + omap_os_timer_reset(s); + omap_timer_clk_setup(&s->timer); + + memory_region_init_io(&s->iomem, NULL, &omap_os_timer_ops, s, + "omap-os-timer", 0x800); + memory_region_add_subregion(memory, base, &s->iomem); + + return s; +} + +/* Ultra Low-Power Device Module */ +static uint64_t omap_ulpd_pm_read(void *opaque, hwaddr addr, + unsigned size) +{ + struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; + uint16_t ret; + + if (size != 2) { + return omap_badwidth_read16(opaque, addr); + } + + switch (addr) { + case 0x14: /* IT_STATUS */ + ret = s->ulpd_pm_regs[addr >> 2]; + s->ulpd_pm_regs[addr >> 2] = 0; + qemu_irq_lower(qdev_get_gpio_in(s->ih[1], OMAP_INT_GAUGE_32K)); + return ret; + + case 0x18: /* Reserved */ + case 0x1c: /* Reserved */ + case 0x20: /* Reserved */ + case 0x28: /* Reserved */ + case 0x2c: /* Reserved */ + OMAP_BAD_REG(addr); + /* fall through */ + case 0x00: /* COUNTER_32_LSB */ + case 0x04: /* COUNTER_32_MSB */ + case 0x08: /* COUNTER_HIGH_FREQ_LSB */ + case 0x0c: /* COUNTER_HIGH_FREQ_MSB */ + case 0x10: /* GAUGING_CTRL */ + case 0x24: /* SETUP_ANALOG_CELL3_ULPD1 */ + case 0x30: /* CLOCK_CTRL */ + case 0x34: /* SOFT_REQ */ + case 0x38: /* COUNTER_32_FIQ */ + case 0x3c: /* DPLL_CTRL */ + case 0x40: /* STATUS_REQ */ + /* XXX: check clk::usecount state for every clock */ + case 0x48: /* LOCL_TIME */ + case 0x4c: /* APLL_CTRL */ + case 0x50: /* POWER_CTRL */ + return s->ulpd_pm_regs[addr >> 2]; + } + + OMAP_BAD_REG(addr); + return 0; +} + +static inline void omap_ulpd_clk_update(struct omap_mpu_state_s *s, + uint16_t diff, uint16_t value) +{ + if (diff & (1 << 4)) /* USB_MCLK_EN */ + omap_clk_onoff(omap_findclk(s, "usb_clk0"), (value >> 4) & 1); + if (diff & (1 << 5)) /* DIS_USB_PVCI_CLK */ + omap_clk_onoff(omap_findclk(s, "usb_w2fc_ck"), (~value >> 5) & 1); +} + +static inline void omap_ulpd_req_update(struct omap_mpu_state_s *s, + uint16_t diff, uint16_t value) +{ + if (diff & (1 << 0)) /* SOFT_DPLL_REQ */ + omap_clk_canidle(omap_findclk(s, "dpll4"), (~value >> 0) & 1); + if (diff & (1 << 1)) /* SOFT_COM_REQ */ + omap_clk_canidle(omap_findclk(s, "com_mclk_out"), (~value >> 1) & 1); + if (diff & (1 << 2)) /* SOFT_SDW_REQ */ + omap_clk_canidle(omap_findclk(s, "bt_mclk_out"), (~value >> 2) & 1); + if (diff & (1 << 3)) /* SOFT_USB_REQ */ + omap_clk_canidle(omap_findclk(s, "usb_clk0"), (~value >> 3) & 1); +} + +static void omap_ulpd_pm_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; + int64_t now, ticks; + int div, mult; + static const int bypass_div[4] = { 1, 2, 4, 4 }; + uint16_t diff; + + if (size != 2) { + omap_badwidth_write16(opaque, addr, value); + return; + } + + switch (addr) { + case 0x00: /* COUNTER_32_LSB */ + case 0x04: /* COUNTER_32_MSB */ + case 0x08: /* COUNTER_HIGH_FREQ_LSB */ + case 0x0c: /* COUNTER_HIGH_FREQ_MSB */ + case 0x14: /* IT_STATUS */ + case 0x40: /* STATUS_REQ */ + OMAP_RO_REG(addr); + break; + + case 0x10: /* GAUGING_CTRL */ + /* Bits 0 and 1 seem to be confused in the OMAP 310 TRM */ + if ((s->ulpd_pm_regs[addr >> 2] ^ value) & 1) { + now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); + + if (value & 1) + s->ulpd_gauge_start = now; + else { + now -= s->ulpd_gauge_start; + + /* 32-kHz ticks */ + ticks = muldiv64(now, 32768, get_ticks_per_sec()); + s->ulpd_pm_regs[0x00 >> 2] = (ticks >> 0) & 0xffff; + s->ulpd_pm_regs[0x04 >> 2] = (ticks >> 16) & 0xffff; + if (ticks >> 32) /* OVERFLOW_32K */ + s->ulpd_pm_regs[0x14 >> 2] |= 1 << 2; + + /* High frequency ticks */ + ticks = muldiv64(now, 12000000, get_ticks_per_sec()); + s->ulpd_pm_regs[0x08 >> 2] = (ticks >> 0) & 0xffff; + s->ulpd_pm_regs[0x0c >> 2] = (ticks >> 16) & 0xffff; + if (ticks >> 32) /* OVERFLOW_HI_FREQ */ + s->ulpd_pm_regs[0x14 >> 2] |= 1 << 1; + + s->ulpd_pm_regs[0x14 >> 2] |= 1 << 0; /* IT_GAUGING */ + qemu_irq_raise(qdev_get_gpio_in(s->ih[1], OMAP_INT_GAUGE_32K)); + } + } + s->ulpd_pm_regs[addr >> 2] = value; + break; + + case 0x18: /* Reserved */ + case 0x1c: /* Reserved */ + case 0x20: /* Reserved */ + case 0x28: /* Reserved */ + case 0x2c: /* Reserved */ + OMAP_BAD_REG(addr); + /* fall through */ + case 0x24: /* SETUP_ANALOG_CELL3_ULPD1 */ + case 0x38: /* COUNTER_32_FIQ */ + case 0x48: /* LOCL_TIME */ + case 0x50: /* POWER_CTRL */ + s->ulpd_pm_regs[addr >> 2] = value; + break; + + case 0x30: /* CLOCK_CTRL */ + diff = s->ulpd_pm_regs[addr >> 2] ^ value; + s->ulpd_pm_regs[addr >> 2] = value & 0x3f; + omap_ulpd_clk_update(s, diff, value); + break; + + case 0x34: /* SOFT_REQ */ + diff = s->ulpd_pm_regs[addr >> 2] ^ value; + s->ulpd_pm_regs[addr >> 2] = value & 0x1f; + omap_ulpd_req_update(s, diff, value); + break; + + case 0x3c: /* DPLL_CTRL */ + /* XXX: OMAP310 TRM claims bit 3 is PLL_ENABLE, and bit 4 is + * omitted altogether, probably a typo. */ + /* This register has identical semantics with DPLL(1:3) control + * registers, see omap_dpll_write() */ + diff = s->ulpd_pm_regs[addr >> 2] & value; + s->ulpd_pm_regs[addr >> 2] = value & 0x2fff; + if (diff & (0x3ff << 2)) { + if (value & (1 << 4)) { /* PLL_ENABLE */ + div = ((value >> 5) & 3) + 1; /* PLL_DIV */ + mult = MIN((value >> 7) & 0x1f, 1); /* PLL_MULT */ + } else { + div = bypass_div[((value >> 2) & 3)]; /* BYPASS_DIV */ + mult = 1; + } + omap_clk_setrate(omap_findclk(s, "dpll4"), div, mult); + } + + /* Enter the desired mode. */ + s->ulpd_pm_regs[addr >> 2] = + (s->ulpd_pm_regs[addr >> 2] & 0xfffe) | + ((s->ulpd_pm_regs[addr >> 2] >> 4) & 1); + + /* Act as if the lock is restored. */ + s->ulpd_pm_regs[addr >> 2] |= 2; + break; + + case 0x4c: /* APLL_CTRL */ + diff = s->ulpd_pm_regs[addr >> 2] & value; + s->ulpd_pm_regs[addr >> 2] = value & 0xf; + if (diff & (1 << 0)) /* APLL_NDPLL_SWITCH */ + omap_clk_reparent(omap_findclk(s, "ck_48m"), omap_findclk(s, + (value & (1 << 0)) ? "apll" : "dpll4")); + break; + + default: + OMAP_BAD_REG(addr); + } +} + +static const MemoryRegionOps omap_ulpd_pm_ops = { + .read = omap_ulpd_pm_read, + .write = omap_ulpd_pm_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void omap_ulpd_pm_reset(struct omap_mpu_state_s *mpu) +{ + mpu->ulpd_pm_regs[0x00 >> 2] = 0x0001; + mpu->ulpd_pm_regs[0x04 >> 2] = 0x0000; + mpu->ulpd_pm_regs[0x08 >> 2] = 0x0001; + mpu->ulpd_pm_regs[0x0c >> 2] = 0x0000; + mpu->ulpd_pm_regs[0x10 >> 2] = 0x0000; + mpu->ulpd_pm_regs[0x18 >> 2] = 0x01; + mpu->ulpd_pm_regs[0x1c >> 2] = 0x01; + mpu->ulpd_pm_regs[0x20 >> 2] = 0x01; + mpu->ulpd_pm_regs[0x24 >> 2] = 0x03ff; + mpu->ulpd_pm_regs[0x28 >> 2] = 0x01; + mpu->ulpd_pm_regs[0x2c >> 2] = 0x01; + omap_ulpd_clk_update(mpu, mpu->ulpd_pm_regs[0x30 >> 2], 0x0000); + mpu->ulpd_pm_regs[0x30 >> 2] = 0x0000; + omap_ulpd_req_update(mpu, mpu->ulpd_pm_regs[0x34 >> 2], 0x0000); + mpu->ulpd_pm_regs[0x34 >> 2] = 0x0000; + mpu->ulpd_pm_regs[0x38 >> 2] = 0x0001; + mpu->ulpd_pm_regs[0x3c >> 2] = 0x2211; + mpu->ulpd_pm_regs[0x40 >> 2] = 0x0000; /* FIXME: dump a real STATUS_REQ */ + mpu->ulpd_pm_regs[0x48 >> 2] = 0x960; + mpu->ulpd_pm_regs[0x4c >> 2] = 0x08; + mpu->ulpd_pm_regs[0x50 >> 2] = 0x08; + omap_clk_setrate(omap_findclk(mpu, "dpll4"), 1, 4); + omap_clk_reparent(omap_findclk(mpu, "ck_48m"), omap_findclk(mpu, "dpll4")); +} + +static void omap_ulpd_pm_init(MemoryRegion *system_memory, + hwaddr base, + struct omap_mpu_state_s *mpu) +{ + memory_region_init_io(&mpu->ulpd_pm_iomem, NULL, &omap_ulpd_pm_ops, mpu, + "omap-ulpd-pm", 0x800); + memory_region_add_subregion(system_memory, base, &mpu->ulpd_pm_iomem); + omap_ulpd_pm_reset(mpu); +} + +/* OMAP Pin Configuration */ +static uint64_t omap_pin_cfg_read(void *opaque, hwaddr addr, + unsigned size) +{ + struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; + + if (size != 4) { + return omap_badwidth_read32(opaque, addr); + } + + switch (addr) { + case 0x00: /* FUNC_MUX_CTRL_0 */ + case 0x04: /* FUNC_MUX_CTRL_1 */ + case 0x08: /* FUNC_MUX_CTRL_2 */ + return s->func_mux_ctrl[addr >> 2]; + + case 0x0c: /* COMP_MODE_CTRL_0 */ + return s->comp_mode_ctrl[0]; + + case 0x10: /* FUNC_MUX_CTRL_3 */ + case 0x14: /* FUNC_MUX_CTRL_4 */ + case 0x18: /* FUNC_MUX_CTRL_5 */ + case 0x1c: /* FUNC_MUX_CTRL_6 */ + case 0x20: /* FUNC_MUX_CTRL_7 */ + case 0x24: /* FUNC_MUX_CTRL_8 */ + case 0x28: /* FUNC_MUX_CTRL_9 */ + case 0x2c: /* FUNC_MUX_CTRL_A */ + case 0x30: /* FUNC_MUX_CTRL_B */ + case 0x34: /* FUNC_MUX_CTRL_C */ + case 0x38: /* FUNC_MUX_CTRL_D */ + return s->func_mux_ctrl[(addr >> 2) - 1]; + + case 0x40: /* PULL_DWN_CTRL_0 */ + case 0x44: /* PULL_DWN_CTRL_1 */ + case 0x48: /* PULL_DWN_CTRL_2 */ + case 0x4c: /* PULL_DWN_CTRL_3 */ + return s->pull_dwn_ctrl[(addr & 0xf) >> 2]; + + case 0x50: /* GATE_INH_CTRL_0 */ + return s->gate_inh_ctrl[0]; + + case 0x60: /* VOLTAGE_CTRL_0 */ + return s->voltage_ctrl[0]; + + case 0x70: /* TEST_DBG_CTRL_0 */ + return s->test_dbg_ctrl[0]; + + case 0x80: /* MOD_CONF_CTRL_0 */ + return s->mod_conf_ctrl[0]; + } + + OMAP_BAD_REG(addr); + return 0; +} + +static inline void omap_pin_funcmux0_update(struct omap_mpu_state_s *s, + uint32_t diff, uint32_t value) +{ + if (s->compat1509) { + if (diff & (1 << 9)) /* BLUETOOTH */ + omap_clk_onoff(omap_findclk(s, "bt_mclk_out"), + (~value >> 9) & 1); + if (diff & (1 << 7)) /* USB.CLKO */ + omap_clk_onoff(omap_findclk(s, "usb.clko"), + (value >> 7) & 1); + } +} + +static inline void omap_pin_funcmux1_update(struct omap_mpu_state_s *s, + uint32_t diff, uint32_t value) +{ + if (s->compat1509) { + if (diff & (1U << 31)) { + /* MCBSP3_CLK_HIZ_DI */ + omap_clk_onoff(omap_findclk(s, "mcbsp3.clkx"), (value >> 31) & 1); + } + if (diff & (1 << 1)) { + /* CLK32K */ + omap_clk_onoff(omap_findclk(s, "clk32k_out"), (~value >> 1) & 1); + } + } +} + +static inline void omap_pin_modconf1_update(struct omap_mpu_state_s *s, + uint32_t diff, uint32_t value) +{ + if (diff & (1U << 31)) { + /* CONF_MOD_UART3_CLK_MODE_R */ + omap_clk_reparent(omap_findclk(s, "uart3_ck"), + omap_findclk(s, ((value >> 31) & 1) ? + "ck_48m" : "armper_ck")); + } + if (diff & (1 << 30)) /* CONF_MOD_UART2_CLK_MODE_R */ + omap_clk_reparent(omap_findclk(s, "uart2_ck"), + omap_findclk(s, ((value >> 30) & 1) ? + "ck_48m" : "armper_ck")); + if (diff & (1 << 29)) /* CONF_MOD_UART1_CLK_MODE_R */ + omap_clk_reparent(omap_findclk(s, "uart1_ck"), + omap_findclk(s, ((value >> 29) & 1) ? + "ck_48m" : "armper_ck")); + if (diff & (1 << 23)) /* CONF_MOD_MMC_SD_CLK_REQ_R */ + omap_clk_reparent(omap_findclk(s, "mmc_ck"), + omap_findclk(s, ((value >> 23) & 1) ? + "ck_48m" : "armper_ck")); + if (diff & (1 << 12)) /* CONF_MOD_COM_MCLK_12_48_S */ + omap_clk_reparent(omap_findclk(s, "com_mclk_out"), + omap_findclk(s, ((value >> 12) & 1) ? + "ck_48m" : "armper_ck")); + if (diff & (1 << 9)) /* CONF_MOD_USB_HOST_HHC_UHO */ + omap_clk_onoff(omap_findclk(s, "usb_hhc_ck"), (value >> 9) & 1); +} + +static void omap_pin_cfg_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; + uint32_t diff; + + if (size != 4) { + omap_badwidth_write32(opaque, addr, value); + return; + } + + switch (addr) { + case 0x00: /* FUNC_MUX_CTRL_0 */ + diff = s->func_mux_ctrl[addr >> 2] ^ value; + s->func_mux_ctrl[addr >> 2] = value; + omap_pin_funcmux0_update(s, diff, value); + return; + + case 0x04: /* FUNC_MUX_CTRL_1 */ + diff = s->func_mux_ctrl[addr >> 2] ^ value; + s->func_mux_ctrl[addr >> 2] = value; + omap_pin_funcmux1_update(s, diff, value); + return; + + case 0x08: /* FUNC_MUX_CTRL_2 */ + s->func_mux_ctrl[addr >> 2] = value; + return; + + case 0x0c: /* COMP_MODE_CTRL_0 */ + s->comp_mode_ctrl[0] = value; + s->compat1509 = (value != 0x0000eaef); + omap_pin_funcmux0_update(s, ~0, s->func_mux_ctrl[0]); + omap_pin_funcmux1_update(s, ~0, s->func_mux_ctrl[1]); + return; + + case 0x10: /* FUNC_MUX_CTRL_3 */ + case 0x14: /* FUNC_MUX_CTRL_4 */ + case 0x18: /* FUNC_MUX_CTRL_5 */ + case 0x1c: /* FUNC_MUX_CTRL_6 */ + case 0x20: /* FUNC_MUX_CTRL_7 */ + case 0x24: /* FUNC_MUX_CTRL_8 */ + case 0x28: /* FUNC_MUX_CTRL_9 */ + case 0x2c: /* FUNC_MUX_CTRL_A */ + case 0x30: /* FUNC_MUX_CTRL_B */ + case 0x34: /* FUNC_MUX_CTRL_C */ + case 0x38: /* FUNC_MUX_CTRL_D */ + s->func_mux_ctrl[(addr >> 2) - 1] = value; + return; + + case 0x40: /* PULL_DWN_CTRL_0 */ + case 0x44: /* PULL_DWN_CTRL_1 */ + case 0x48: /* PULL_DWN_CTRL_2 */ + case 0x4c: /* PULL_DWN_CTRL_3 */ + s->pull_dwn_ctrl[(addr & 0xf) >> 2] = value; + return; + + case 0x50: /* GATE_INH_CTRL_0 */ + s->gate_inh_ctrl[0] = value; + return; + + case 0x60: /* VOLTAGE_CTRL_0 */ + s->voltage_ctrl[0] = value; + return; + + case 0x70: /* TEST_DBG_CTRL_0 */ + s->test_dbg_ctrl[0] = value; + return; + + case 0x80: /* MOD_CONF_CTRL_0 */ + diff = s->mod_conf_ctrl[0] ^ value; + s->mod_conf_ctrl[0] = value; + omap_pin_modconf1_update(s, diff, value); + return; + + default: + OMAP_BAD_REG(addr); + } +} + +static const MemoryRegionOps omap_pin_cfg_ops = { + .read = omap_pin_cfg_read, + .write = omap_pin_cfg_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void omap_pin_cfg_reset(struct omap_mpu_state_s *mpu) +{ + /* Start in Compatibility Mode. */ + mpu->compat1509 = 1; + omap_pin_funcmux0_update(mpu, mpu->func_mux_ctrl[0], 0); + omap_pin_funcmux1_update(mpu, mpu->func_mux_ctrl[1], 0); + omap_pin_modconf1_update(mpu, mpu->mod_conf_ctrl[0], 0); + memset(mpu->func_mux_ctrl, 0, sizeof(mpu->func_mux_ctrl)); + memset(mpu->comp_mode_ctrl, 0, sizeof(mpu->comp_mode_ctrl)); + memset(mpu->pull_dwn_ctrl, 0, sizeof(mpu->pull_dwn_ctrl)); + memset(mpu->gate_inh_ctrl, 0, sizeof(mpu->gate_inh_ctrl)); + memset(mpu->voltage_ctrl, 0, sizeof(mpu->voltage_ctrl)); + memset(mpu->test_dbg_ctrl, 0, sizeof(mpu->test_dbg_ctrl)); + memset(mpu->mod_conf_ctrl, 0, sizeof(mpu->mod_conf_ctrl)); +} + +static void omap_pin_cfg_init(MemoryRegion *system_memory, + hwaddr base, + struct omap_mpu_state_s *mpu) +{ + memory_region_init_io(&mpu->pin_cfg_iomem, NULL, &omap_pin_cfg_ops, mpu, + "omap-pin-cfg", 0x800); + memory_region_add_subregion(system_memory, base, &mpu->pin_cfg_iomem); + omap_pin_cfg_reset(mpu); +} + +/* Device Identification, Die Identification */ +static uint64_t omap_id_read(void *opaque, hwaddr addr, + unsigned size) +{ + struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; + + if (size != 4) { + return omap_badwidth_read32(opaque, addr); + } + + switch (addr) { + case 0xfffe1800: /* DIE_ID_LSB */ + return 0xc9581f0e; + case 0xfffe1804: /* DIE_ID_MSB */ + return 0xa8858bfa; + + case 0xfffe2000: /* PRODUCT_ID_LSB */ + return 0x00aaaafc; + case 0xfffe2004: /* PRODUCT_ID_MSB */ + return 0xcafeb574; + + case 0xfffed400: /* JTAG_ID_LSB */ + switch (s->mpu_model) { + case omap310: + return 0x03310315; + case omap1510: + return 0x03310115; + default: + hw_error("%s: bad mpu model\n", __FUNCTION__); + } + break; + + case 0xfffed404: /* JTAG_ID_MSB */ + switch (s->mpu_model) { + case omap310: + return 0xfb57402f; + case omap1510: + return 0xfb47002f; + default: + hw_error("%s: bad mpu model\n", __FUNCTION__); + } + break; + } + + OMAP_BAD_REG(addr); + return 0; +} + +static void omap_id_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + if (size != 4) { + omap_badwidth_write32(opaque, addr, value); + return; + } + + OMAP_BAD_REG(addr); +} + +static const MemoryRegionOps omap_id_ops = { + .read = omap_id_read, + .write = omap_id_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void omap_id_init(MemoryRegion *memory, struct omap_mpu_state_s *mpu) +{ + memory_region_init_io(&mpu->id_iomem, NULL, &omap_id_ops, mpu, + "omap-id", 0x100000000ULL); + memory_region_init_alias(&mpu->id_iomem_e18, NULL, "omap-id-e18", &mpu->id_iomem, + 0xfffe1800, 0x800); + memory_region_add_subregion(memory, 0xfffe1800, &mpu->id_iomem_e18); + memory_region_init_alias(&mpu->id_iomem_ed4, NULL, "omap-id-ed4", &mpu->id_iomem, + 0xfffed400, 0x100); + memory_region_add_subregion(memory, 0xfffed400, &mpu->id_iomem_ed4); + if (!cpu_is_omap15xx(mpu)) { + memory_region_init_alias(&mpu->id_iomem_ed4, NULL, "omap-id-e20", + &mpu->id_iomem, 0xfffe2000, 0x800); + memory_region_add_subregion(memory, 0xfffe2000, &mpu->id_iomem_e20); + } +} + +/* MPUI Control (Dummy) */ +static uint64_t omap_mpui_read(void *opaque, hwaddr addr, + unsigned size) +{ + struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; + + if (size != 4) { + return omap_badwidth_read32(opaque, addr); + } + + switch (addr) { + case 0x00: /* CTRL */ + return s->mpui_ctrl; + case 0x04: /* DEBUG_ADDR */ + return 0x01ffffff; + case 0x08: /* DEBUG_DATA */ + return 0xffffffff; + case 0x0c: /* DEBUG_FLAG */ + return 0x00000800; + case 0x10: /* STATUS */ + return 0x00000000; + + /* Not in OMAP310 */ + case 0x14: /* DSP_STATUS */ + case 0x18: /* DSP_BOOT_CONFIG */ + return 0x00000000; + case 0x1c: /* DSP_MPUI_CONFIG */ + return 0x0000ffff; + } + + OMAP_BAD_REG(addr); + return 0; +} + +static void omap_mpui_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; + + if (size != 4) { + omap_badwidth_write32(opaque, addr, value); + return; + } + + switch (addr) { + case 0x00: /* CTRL */ + s->mpui_ctrl = value & 0x007fffff; + break; + + case 0x04: /* DEBUG_ADDR */ + case 0x08: /* DEBUG_DATA */ + case 0x0c: /* DEBUG_FLAG */ + case 0x10: /* STATUS */ + /* Not in OMAP310 */ + case 0x14: /* DSP_STATUS */ + OMAP_RO_REG(addr); + break; + case 0x18: /* DSP_BOOT_CONFIG */ + case 0x1c: /* DSP_MPUI_CONFIG */ + break; + + default: + OMAP_BAD_REG(addr); + } +} + +static const MemoryRegionOps omap_mpui_ops = { + .read = omap_mpui_read, + .write = omap_mpui_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void omap_mpui_reset(struct omap_mpu_state_s *s) +{ + s->mpui_ctrl = 0x0003ff1b; +} + +static void omap_mpui_init(MemoryRegion *memory, hwaddr base, + struct omap_mpu_state_s *mpu) +{ + memory_region_init_io(&mpu->mpui_iomem, NULL, &omap_mpui_ops, mpu, + "omap-mpui", 0x100); + memory_region_add_subregion(memory, base, &mpu->mpui_iomem); + + omap_mpui_reset(mpu); +} + +/* TIPB Bridges */ +struct omap_tipb_bridge_s { + qemu_irq abort; + MemoryRegion iomem; + + int width_intr; + uint16_t control; + uint16_t alloc; + uint16_t buffer; + uint16_t enh_control; +}; + +static uint64_t omap_tipb_bridge_read(void *opaque, hwaddr addr, + unsigned size) +{ + struct omap_tipb_bridge_s *s = (struct omap_tipb_bridge_s *) opaque; + + if (size < 2) { + return omap_badwidth_read16(opaque, addr); + } + + switch (addr) { + case 0x00: /* TIPB_CNTL */ + return s->control; + case 0x04: /* TIPB_BUS_ALLOC */ + return s->alloc; + case 0x08: /* MPU_TIPB_CNTL */ + return s->buffer; + case 0x0c: /* ENHANCED_TIPB_CNTL */ + return s->enh_control; + case 0x10: /* ADDRESS_DBG */ + case 0x14: /* DATA_DEBUG_LOW */ + case 0x18: /* DATA_DEBUG_HIGH */ + return 0xffff; + case 0x1c: /* DEBUG_CNTR_SIG */ + return 0x00f8; + } + + OMAP_BAD_REG(addr); + return 0; +} + +static void omap_tipb_bridge_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + struct omap_tipb_bridge_s *s = (struct omap_tipb_bridge_s *) opaque; + + if (size < 2) { + omap_badwidth_write16(opaque, addr, value); + return; + } + + switch (addr) { + case 0x00: /* TIPB_CNTL */ + s->control = value & 0xffff; + break; + + case 0x04: /* TIPB_BUS_ALLOC */ + s->alloc = value & 0x003f; + break; + + case 0x08: /* MPU_TIPB_CNTL */ + s->buffer = value & 0x0003; + break; + + case 0x0c: /* ENHANCED_TIPB_CNTL */ + s->width_intr = !(value & 2); + s->enh_control = value & 0x000f; + break; + + case 0x10: /* ADDRESS_DBG */ + case 0x14: /* DATA_DEBUG_LOW */ + case 0x18: /* DATA_DEBUG_HIGH */ + case 0x1c: /* DEBUG_CNTR_SIG */ + OMAP_RO_REG(addr); + break; + + default: + OMAP_BAD_REG(addr); + } +} + +static const MemoryRegionOps omap_tipb_bridge_ops = { + .read = omap_tipb_bridge_read, + .write = omap_tipb_bridge_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void omap_tipb_bridge_reset(struct omap_tipb_bridge_s *s) +{ + s->control = 0xffff; + s->alloc = 0x0009; + s->buffer = 0x0000; + s->enh_control = 0x000f; +} + +static struct omap_tipb_bridge_s *omap_tipb_bridge_init( + MemoryRegion *memory, hwaddr base, + qemu_irq abort_irq, omap_clk clk) +{ + struct omap_tipb_bridge_s *s = g_new0(struct omap_tipb_bridge_s, 1); + + s->abort = abort_irq; + omap_tipb_bridge_reset(s); + + memory_region_init_io(&s->iomem, NULL, &omap_tipb_bridge_ops, s, + "omap-tipb-bridge", 0x100); + memory_region_add_subregion(memory, base, &s->iomem); + + return s; +} + +/* Dummy Traffic Controller's Memory Interface */ +static uint64_t omap_tcmi_read(void *opaque, hwaddr addr, + unsigned size) +{ + struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; + uint32_t ret; + + if (size != 4) { + return omap_badwidth_read32(opaque, addr); + } + + switch (addr) { + case 0x00: /* IMIF_PRIO */ + case 0x04: /* EMIFS_PRIO */ + case 0x08: /* EMIFF_PRIO */ + case 0x0c: /* EMIFS_CONFIG */ + case 0x10: /* EMIFS_CS0_CONFIG */ + case 0x14: /* EMIFS_CS1_CONFIG */ + case 0x18: /* EMIFS_CS2_CONFIG */ + case 0x1c: /* EMIFS_CS3_CONFIG */ + case 0x24: /* EMIFF_MRS */ + case 0x28: /* TIMEOUT1 */ + case 0x2c: /* TIMEOUT2 */ + case 0x30: /* TIMEOUT3 */ + case 0x3c: /* EMIFF_SDRAM_CONFIG_2 */ + case 0x40: /* EMIFS_CFG_DYN_WAIT */ + return s->tcmi_regs[addr >> 2]; + + case 0x20: /* EMIFF_SDRAM_CONFIG */ + ret = s->tcmi_regs[addr >> 2]; + s->tcmi_regs[addr >> 2] &= ~1; /* XXX: Clear SLRF on SDRAM access */ + /* XXX: We can try using the VGA_DIRTY flag for this */ + return ret; + } + + OMAP_BAD_REG(addr); + return 0; +} + +static void omap_tcmi_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; + + if (size != 4) { + omap_badwidth_write32(opaque, addr, value); + return; + } + + switch (addr) { + case 0x00: /* IMIF_PRIO */ + case 0x04: /* EMIFS_PRIO */ + case 0x08: /* EMIFF_PRIO */ + case 0x10: /* EMIFS_CS0_CONFIG */ + case 0x14: /* EMIFS_CS1_CONFIG */ + case 0x18: /* EMIFS_CS2_CONFIG */ + case 0x1c: /* EMIFS_CS3_CONFIG */ + case 0x20: /* EMIFF_SDRAM_CONFIG */ + case 0x24: /* EMIFF_MRS */ + case 0x28: /* TIMEOUT1 */ + case 0x2c: /* TIMEOUT2 */ + case 0x30: /* TIMEOUT3 */ + case 0x3c: /* EMIFF_SDRAM_CONFIG_2 */ + case 0x40: /* EMIFS_CFG_DYN_WAIT */ + s->tcmi_regs[addr >> 2] = value; + break; + case 0x0c: /* EMIFS_CONFIG */ + s->tcmi_regs[addr >> 2] = (value & 0xf) | (1 << 4); + break; + + default: + OMAP_BAD_REG(addr); + } +} + +static const MemoryRegionOps omap_tcmi_ops = { + .read = omap_tcmi_read, + .write = omap_tcmi_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void omap_tcmi_reset(struct omap_mpu_state_s *mpu) +{ + mpu->tcmi_regs[0x00 >> 2] = 0x00000000; + mpu->tcmi_regs[0x04 >> 2] = 0x00000000; + mpu->tcmi_regs[0x08 >> 2] = 0x00000000; + mpu->tcmi_regs[0x0c >> 2] = 0x00000010; + mpu->tcmi_regs[0x10 >> 2] = 0x0010fffb; + mpu->tcmi_regs[0x14 >> 2] = 0x0010fffb; + mpu->tcmi_regs[0x18 >> 2] = 0x0010fffb; + mpu->tcmi_regs[0x1c >> 2] = 0x0010fffb; + mpu->tcmi_regs[0x20 >> 2] = 0x00618800; + mpu->tcmi_regs[0x24 >> 2] = 0x00000037; + mpu->tcmi_regs[0x28 >> 2] = 0x00000000; + mpu->tcmi_regs[0x2c >> 2] = 0x00000000; + mpu->tcmi_regs[0x30 >> 2] = 0x00000000; + mpu->tcmi_regs[0x3c >> 2] = 0x00000003; + mpu->tcmi_regs[0x40 >> 2] = 0x00000000; +} + +static void omap_tcmi_init(MemoryRegion *memory, hwaddr base, + struct omap_mpu_state_s *mpu) +{ + memory_region_init_io(&mpu->tcmi_iomem, NULL, &omap_tcmi_ops, mpu, + "omap-tcmi", 0x100); + memory_region_add_subregion(memory, base, &mpu->tcmi_iomem); + omap_tcmi_reset(mpu); +} + +/* Digital phase-locked loops control */ +struct dpll_ctl_s { + MemoryRegion iomem; + uint16_t mode; + omap_clk dpll; +}; + +static uint64_t omap_dpll_read(void *opaque, hwaddr addr, + unsigned size) +{ + struct dpll_ctl_s *s = (struct dpll_ctl_s *) opaque; + + if (size != 2) { + return omap_badwidth_read16(opaque, addr); + } + + if (addr == 0x00) /* CTL_REG */ + return s->mode; + + OMAP_BAD_REG(addr); + return 0; +} + +static void omap_dpll_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + struct dpll_ctl_s *s = (struct dpll_ctl_s *) opaque; + uint16_t diff; + static const int bypass_div[4] = { 1, 2, 4, 4 }; + int div, mult; + + if (size != 2) { + omap_badwidth_write16(opaque, addr, value); + return; + } + + if (addr == 0x00) { /* CTL_REG */ + /* See omap_ulpd_pm_write() too */ + diff = s->mode & value; + s->mode = value & 0x2fff; + if (diff & (0x3ff << 2)) { + if (value & (1 << 4)) { /* PLL_ENABLE */ + div = ((value >> 5) & 3) + 1; /* PLL_DIV */ + mult = MIN((value >> 7) & 0x1f, 1); /* PLL_MULT */ + } else { + div = bypass_div[((value >> 2) & 3)]; /* BYPASS_DIV */ + mult = 1; + } + omap_clk_setrate(s->dpll, div, mult); + } + + /* Enter the desired mode. */ + s->mode = (s->mode & 0xfffe) | ((s->mode >> 4) & 1); + + /* Act as if the lock is restored. */ + s->mode |= 2; + } else { + OMAP_BAD_REG(addr); + } +} + +static const MemoryRegionOps omap_dpll_ops = { + .read = omap_dpll_read, + .write = omap_dpll_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void omap_dpll_reset(struct dpll_ctl_s *s) +{ + s->mode = 0x2002; + omap_clk_setrate(s->dpll, 1, 1); +} + +static struct dpll_ctl_s *omap_dpll_init(MemoryRegion *memory, + hwaddr base, omap_clk clk) +{ + struct dpll_ctl_s *s = g_malloc0(sizeof(*s)); + memory_region_init_io(&s->iomem, NULL, &omap_dpll_ops, s, "omap-dpll", 0x100); + + s->dpll = clk; + omap_dpll_reset(s); + + memory_region_add_subregion(memory, base, &s->iomem); + return s; +} + +/* MPU Clock/Reset/Power Mode Control */ +static uint64_t omap_clkm_read(void *opaque, hwaddr addr, + unsigned size) +{ + struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; + + if (size != 2) { + return omap_badwidth_read16(opaque, addr); + } + + switch (addr) { + case 0x00: /* ARM_CKCTL */ + return s->clkm.arm_ckctl; + + case 0x04: /* ARM_IDLECT1 */ + return s->clkm.arm_idlect1; + + case 0x08: /* ARM_IDLECT2 */ + return s->clkm.arm_idlect2; + + case 0x0c: /* ARM_EWUPCT */ + return s->clkm.arm_ewupct; + + case 0x10: /* ARM_RSTCT1 */ + return s->clkm.arm_rstct1; + + case 0x14: /* ARM_RSTCT2 */ + return s->clkm.arm_rstct2; + + case 0x18: /* ARM_SYSST */ + return (s->clkm.clocking_scheme << 11) | s->clkm.cold_start; + + case 0x1c: /* ARM_CKOUT1 */ + return s->clkm.arm_ckout1; + + case 0x20: /* ARM_CKOUT2 */ + break; + } + + OMAP_BAD_REG(addr); + return 0; +} + +static inline void omap_clkm_ckctl_update(struct omap_mpu_state_s *s, + uint16_t diff, uint16_t value) +{ + omap_clk clk; + + if (diff & (1 << 14)) { /* ARM_INTHCK_SEL */ + if (value & (1 << 14)) + /* Reserved */; + else { + clk = omap_findclk(s, "arminth_ck"); + omap_clk_reparent(clk, omap_findclk(s, "tc_ck")); + } + } + if (diff & (1 << 12)) { /* ARM_TIMXO */ + clk = omap_findclk(s, "armtim_ck"); + if (value & (1 << 12)) + omap_clk_reparent(clk, omap_findclk(s, "clkin")); + else + omap_clk_reparent(clk, omap_findclk(s, "ck_gen1")); + } + /* XXX: en_dspck */ + if (diff & (3 << 10)) { /* DSPMMUDIV */ + clk = omap_findclk(s, "dspmmu_ck"); + omap_clk_setrate(clk, 1 << ((value >> 10) & 3), 1); + } + if (diff & (3 << 8)) { /* TCDIV */ + clk = omap_findclk(s, "tc_ck"); + omap_clk_setrate(clk, 1 << ((value >> 8) & 3), 1); + } + if (diff & (3 << 6)) { /* DSPDIV */ + clk = omap_findclk(s, "dsp_ck"); + omap_clk_setrate(clk, 1 << ((value >> 6) & 3), 1); + } + if (diff & (3 << 4)) { /* ARMDIV */ + clk = omap_findclk(s, "arm_ck"); + omap_clk_setrate(clk, 1 << ((value >> 4) & 3), 1); + } + if (diff & (3 << 2)) { /* LCDDIV */ + clk = omap_findclk(s, "lcd_ck"); + omap_clk_setrate(clk, 1 << ((value >> 2) & 3), 1); + } + if (diff & (3 << 0)) { /* PERDIV */ + clk = omap_findclk(s, "armper_ck"); + omap_clk_setrate(clk, 1 << ((value >> 0) & 3), 1); + } +} + +static inline void omap_clkm_idlect1_update(struct omap_mpu_state_s *s, + uint16_t diff, uint16_t value) +{ + omap_clk clk; + + if (value & (1 << 11)) { /* SETARM_IDLE */ + cpu_interrupt(CPU(s->cpu), CPU_INTERRUPT_HALT); + } + if (!(value & (1 << 10))) /* WKUP_MODE */ + qemu_system_shutdown_request(); /* XXX: disable wakeup from IRQ */ + +#define SET_CANIDLE(clock, bit) \ + if (diff & (1 << bit)) { \ + clk = omap_findclk(s, clock); \ + omap_clk_canidle(clk, (value >> bit) & 1); \ + } + SET_CANIDLE("mpuwd_ck", 0) /* IDLWDT_ARM */ + SET_CANIDLE("armxor_ck", 1) /* IDLXORP_ARM */ + SET_CANIDLE("mpuper_ck", 2) /* IDLPER_ARM */ + SET_CANIDLE("lcd_ck", 3) /* IDLLCD_ARM */ + SET_CANIDLE("lb_ck", 4) /* IDLLB_ARM */ + SET_CANIDLE("hsab_ck", 5) /* IDLHSAB_ARM */ + SET_CANIDLE("tipb_ck", 6) /* IDLIF_ARM */ + SET_CANIDLE("dma_ck", 6) /* IDLIF_ARM */ + SET_CANIDLE("tc_ck", 6) /* IDLIF_ARM */ + SET_CANIDLE("dpll1", 7) /* IDLDPLL_ARM */ + SET_CANIDLE("dpll2", 7) /* IDLDPLL_ARM */ + SET_CANIDLE("dpll3", 7) /* IDLDPLL_ARM */ + SET_CANIDLE("mpui_ck", 8) /* IDLAPI_ARM */ + SET_CANIDLE("armtim_ck", 9) /* IDLTIM_ARM */ +} + +static inline void omap_clkm_idlect2_update(struct omap_mpu_state_s *s, + uint16_t diff, uint16_t value) +{ + omap_clk clk; + +#define SET_ONOFF(clock, bit) \ + if (diff & (1 << bit)) { \ + clk = omap_findclk(s, clock); \ + omap_clk_onoff(clk, (value >> bit) & 1); \ + } + SET_ONOFF("mpuwd_ck", 0) /* EN_WDTCK */ + SET_ONOFF("armxor_ck", 1) /* EN_XORPCK */ + SET_ONOFF("mpuper_ck", 2) /* EN_PERCK */ + SET_ONOFF("lcd_ck", 3) /* EN_LCDCK */ + SET_ONOFF("lb_ck", 4) /* EN_LBCK */ + SET_ONOFF("hsab_ck", 5) /* EN_HSABCK */ + SET_ONOFF("mpui_ck", 6) /* EN_APICK */ + SET_ONOFF("armtim_ck", 7) /* EN_TIMCK */ + SET_CANIDLE("dma_ck", 8) /* DMACK_REQ */ + SET_ONOFF("arm_gpio_ck", 9) /* EN_GPIOCK */ + SET_ONOFF("lbfree_ck", 10) /* EN_LBFREECK */ +} + +static inline void omap_clkm_ckout1_update(struct omap_mpu_state_s *s, + uint16_t diff, uint16_t value) +{ + omap_clk clk; + + if (diff & (3 << 4)) { /* TCLKOUT */ + clk = omap_findclk(s, "tclk_out"); + switch ((value >> 4) & 3) { + case 1: + omap_clk_reparent(clk, omap_findclk(s, "ck_gen3")); + omap_clk_onoff(clk, 1); + break; + case 2: + omap_clk_reparent(clk, omap_findclk(s, "tc_ck")); + omap_clk_onoff(clk, 1); + break; + default: + omap_clk_onoff(clk, 0); + } + } + if (diff & (3 << 2)) { /* DCLKOUT */ + clk = omap_findclk(s, "dclk_out"); + switch ((value >> 2) & 3) { + case 0: + omap_clk_reparent(clk, omap_findclk(s, "dspmmu_ck")); + break; + case 1: + omap_clk_reparent(clk, omap_findclk(s, "ck_gen2")); + break; + case 2: + omap_clk_reparent(clk, omap_findclk(s, "dsp_ck")); + break; + case 3: + omap_clk_reparent(clk, omap_findclk(s, "ck_ref14")); + break; + } + } + if (diff & (3 << 0)) { /* ACLKOUT */ + clk = omap_findclk(s, "aclk_out"); + switch ((value >> 0) & 3) { + case 1: + omap_clk_reparent(clk, omap_findclk(s, "ck_gen1")); + omap_clk_onoff(clk, 1); + break; + case 2: + omap_clk_reparent(clk, omap_findclk(s, "arm_ck")); + omap_clk_onoff(clk, 1); + break; + case 3: + omap_clk_reparent(clk, omap_findclk(s, "ck_ref14")); + omap_clk_onoff(clk, 1); + break; + default: + omap_clk_onoff(clk, 0); + } + } +} + +static void omap_clkm_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; + uint16_t diff; + omap_clk clk; + static const char *clkschemename[8] = { + "fully synchronous", "fully asynchronous", "synchronous scalable", + "mix mode 1", "mix mode 2", "bypass mode", "mix mode 3", "mix mode 4", + }; + + if (size != 2) { + omap_badwidth_write16(opaque, addr, value); + return; + } + + switch (addr) { + case 0x00: /* ARM_CKCTL */ + diff = s->clkm.arm_ckctl ^ value; + s->clkm.arm_ckctl = value & 0x7fff; + omap_clkm_ckctl_update(s, diff, value); + return; + + case 0x04: /* ARM_IDLECT1 */ + diff = s->clkm.arm_idlect1 ^ value; + s->clkm.arm_idlect1 = value & 0x0fff; + omap_clkm_idlect1_update(s, diff, value); + return; + + case 0x08: /* ARM_IDLECT2 */ + diff = s->clkm.arm_idlect2 ^ value; + s->clkm.arm_idlect2 = value & 0x07ff; + omap_clkm_idlect2_update(s, diff, value); + return; + + case 0x0c: /* ARM_EWUPCT */ + s->clkm.arm_ewupct = value & 0x003f; + return; + + case 0x10: /* ARM_RSTCT1 */ + diff = s->clkm.arm_rstct1 ^ value; + s->clkm.arm_rstct1 = value & 0x0007; + if (value & 9) { + qemu_system_reset_request(); + s->clkm.cold_start = 0xa; + } + if (diff & ~value & 4) { /* DSP_RST */ + omap_mpui_reset(s); + omap_tipb_bridge_reset(s->private_tipb); + omap_tipb_bridge_reset(s->public_tipb); + } + if (diff & 2) { /* DSP_EN */ + clk = omap_findclk(s, "dsp_ck"); + omap_clk_canidle(clk, (~value >> 1) & 1); + } + return; + + case 0x14: /* ARM_RSTCT2 */ + s->clkm.arm_rstct2 = value & 0x0001; + return; + + case 0x18: /* ARM_SYSST */ + if ((s->clkm.clocking_scheme ^ (value >> 11)) & 7) { + s->clkm.clocking_scheme = (value >> 11) & 7; + printf("%s: clocking scheme set to %s\n", __FUNCTION__, + clkschemename[s->clkm.clocking_scheme]); + } + s->clkm.cold_start &= value & 0x3f; + return; + + case 0x1c: /* ARM_CKOUT1 */ + diff = s->clkm.arm_ckout1 ^ value; + s->clkm.arm_ckout1 = value & 0x003f; + omap_clkm_ckout1_update(s, diff, value); + return; + + case 0x20: /* ARM_CKOUT2 */ + default: + OMAP_BAD_REG(addr); + } +} + +static const MemoryRegionOps omap_clkm_ops = { + .read = omap_clkm_read, + .write = omap_clkm_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static uint64_t omap_clkdsp_read(void *opaque, hwaddr addr, + unsigned size) +{ + struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; + CPUState *cpu = CPU(s->cpu); + + if (size != 2) { + return omap_badwidth_read16(opaque, addr); + } + + switch (addr) { + case 0x04: /* DSP_IDLECT1 */ + return s->clkm.dsp_idlect1; + + case 0x08: /* DSP_IDLECT2 */ + return s->clkm.dsp_idlect2; + + case 0x14: /* DSP_RSTCT2 */ + return s->clkm.dsp_rstct2; + + case 0x18: /* DSP_SYSST */ + cpu = CPU(s->cpu); + return (s->clkm.clocking_scheme << 11) | s->clkm.cold_start | + (cpu->halted << 6); /* Quite useless... */ + } + + OMAP_BAD_REG(addr); + return 0; +} + +static inline void omap_clkdsp_idlect1_update(struct omap_mpu_state_s *s, + uint16_t diff, uint16_t value) +{ + omap_clk clk; + + SET_CANIDLE("dspxor_ck", 1); /* IDLXORP_DSP */ +} + +static inline void omap_clkdsp_idlect2_update(struct omap_mpu_state_s *s, + uint16_t diff, uint16_t value) +{ + omap_clk clk; + + SET_ONOFF("dspxor_ck", 1); /* EN_XORPCK */ +} + +static void omap_clkdsp_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; + uint16_t diff; + + if (size != 2) { + omap_badwidth_write16(opaque, addr, value); + return; + } + + switch (addr) { + case 0x04: /* DSP_IDLECT1 */ + diff = s->clkm.dsp_idlect1 ^ value; + s->clkm.dsp_idlect1 = value & 0x01f7; + omap_clkdsp_idlect1_update(s, diff, value); + break; + + case 0x08: /* DSP_IDLECT2 */ + s->clkm.dsp_idlect2 = value & 0x0037; + diff = s->clkm.dsp_idlect1 ^ value; + omap_clkdsp_idlect2_update(s, diff, value); + break; + + case 0x14: /* DSP_RSTCT2 */ + s->clkm.dsp_rstct2 = value & 0x0001; + break; + + case 0x18: /* DSP_SYSST */ + s->clkm.cold_start &= value & 0x3f; + break; + + default: + OMAP_BAD_REG(addr); + } +} + +static const MemoryRegionOps omap_clkdsp_ops = { + .read = omap_clkdsp_read, + .write = omap_clkdsp_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void omap_clkm_reset(struct omap_mpu_state_s *s) +{ + if (s->wdt && s->wdt->reset) + s->clkm.cold_start = 0x6; + s->clkm.clocking_scheme = 0; + omap_clkm_ckctl_update(s, ~0, 0x3000); + s->clkm.arm_ckctl = 0x3000; + omap_clkm_idlect1_update(s, s->clkm.arm_idlect1 ^ 0x0400, 0x0400); + s->clkm.arm_idlect1 = 0x0400; + omap_clkm_idlect2_update(s, s->clkm.arm_idlect2 ^ 0x0100, 0x0100); + s->clkm.arm_idlect2 = 0x0100; + s->clkm.arm_ewupct = 0x003f; + s->clkm.arm_rstct1 = 0x0000; + s->clkm.arm_rstct2 = 0x0000; + s->clkm.arm_ckout1 = 0x0015; + s->clkm.dpll1_mode = 0x2002; + omap_clkdsp_idlect1_update(s, s->clkm.dsp_idlect1 ^ 0x0040, 0x0040); + s->clkm.dsp_idlect1 = 0x0040; + omap_clkdsp_idlect2_update(s, ~0, 0x0000); + s->clkm.dsp_idlect2 = 0x0000; + s->clkm.dsp_rstct2 = 0x0000; +} + +static void omap_clkm_init(MemoryRegion *memory, hwaddr mpu_base, + hwaddr dsp_base, struct omap_mpu_state_s *s) +{ + memory_region_init_io(&s->clkm_iomem, NULL, &omap_clkm_ops, s, + "omap-clkm", 0x100); + memory_region_init_io(&s->clkdsp_iomem, NULL, &omap_clkdsp_ops, s, + "omap-clkdsp", 0x1000); + + s->clkm.arm_idlect1 = 0x03ff; + s->clkm.arm_idlect2 = 0x0100; + s->clkm.dsp_idlect1 = 0x0002; + omap_clkm_reset(s); + s->clkm.cold_start = 0x3a; + + memory_region_add_subregion(memory, mpu_base, &s->clkm_iomem); + memory_region_add_subregion(memory, dsp_base, &s->clkdsp_iomem); +} + +/* MPU I/O */ +struct omap_mpuio_s { + qemu_irq irq; + qemu_irq kbd_irq; + qemu_irq *in; + qemu_irq handler[16]; + qemu_irq wakeup; + MemoryRegion iomem; + + uint16_t inputs; + uint16_t outputs; + uint16_t dir; + uint16_t edge; + uint16_t mask; + uint16_t ints; + + uint16_t debounce; + uint16_t latch; + uint8_t event; + + uint8_t buttons[5]; + uint8_t row_latch; + uint8_t cols; + int kbd_mask; + int clk; +}; + +static void omap_mpuio_set(void *opaque, int line, int level) +{ + struct omap_mpuio_s *s = (struct omap_mpuio_s *) opaque; + uint16_t prev = s->inputs; + + if (level) + s->inputs |= 1 << line; + else + s->inputs &= ~(1 << line); + + if (((1 << line) & s->dir & ~s->mask) && s->clk) { + if ((s->edge & s->inputs & ~prev) | (~s->edge & ~s->inputs & prev)) { + s->ints |= 1 << line; + qemu_irq_raise(s->irq); + /* TODO: wakeup */ + } + if ((s->event & (1 << 0)) && /* SET_GPIO_EVENT_MODE */ + (s->event >> 1) == line) /* PIN_SELECT */ + s->latch = s->inputs; + } +} + +static void omap_mpuio_kbd_update(struct omap_mpuio_s *s) +{ + int i; + uint8_t *row, rows = 0, cols = ~s->cols; + + for (row = s->buttons + 4, i = 1 << 4; i; row --, i >>= 1) + if (*row & cols) + rows |= i; + + qemu_set_irq(s->kbd_irq, rows && !s->kbd_mask && s->clk); + s->row_latch = ~rows; +} + +static uint64_t omap_mpuio_read(void *opaque, hwaddr addr, + unsigned size) +{ + struct omap_mpuio_s *s = (struct omap_mpuio_s *) opaque; + int offset = addr & OMAP_MPUI_REG_MASK; + uint16_t ret; + + if (size != 2) { + return omap_badwidth_read16(opaque, addr); + } + + switch (offset) { + case 0x00: /* INPUT_LATCH */ + return s->inputs; + + case 0x04: /* OUTPUT_REG */ + return s->outputs; + + case 0x08: /* IO_CNTL */ + return s->dir; + + case 0x10: /* KBR_LATCH */ + return s->row_latch; + + case 0x14: /* KBC_REG */ + return s->cols; + + case 0x18: /* GPIO_EVENT_MODE_REG */ + return s->event; + + case 0x1c: /* GPIO_INT_EDGE_REG */ + return s->edge; + + case 0x20: /* KBD_INT */ + return (~s->row_latch & 0x1f) && !s->kbd_mask; + + case 0x24: /* GPIO_INT */ + ret = s->ints; + s->ints &= s->mask; + if (ret) + qemu_irq_lower(s->irq); + return ret; + + case 0x28: /* KBD_MASKIT */ + return s->kbd_mask; + + case 0x2c: /* GPIO_MASKIT */ + return s->mask; + + case 0x30: /* GPIO_DEBOUNCING_REG */ + return s->debounce; + + case 0x34: /* GPIO_LATCH_REG */ + return s->latch; + } + + OMAP_BAD_REG(addr); + return 0; +} + +static void omap_mpuio_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + struct omap_mpuio_s *s = (struct omap_mpuio_s *) opaque; + int offset = addr & OMAP_MPUI_REG_MASK; + uint16_t diff; + int ln; + + if (size != 2) { + omap_badwidth_write16(opaque, addr, value); + return; + } + + switch (offset) { + case 0x04: /* OUTPUT_REG */ + diff = (s->outputs ^ value) & ~s->dir; + s->outputs = value; + while ((ln = ctz32(diff)) != 32) { + if (s->handler[ln]) + qemu_set_irq(s->handler[ln], (value >> ln) & 1); + diff &= ~(1 << ln); + } + break; + + case 0x08: /* IO_CNTL */ + diff = s->outputs & (s->dir ^ value); + s->dir = value; + + value = s->outputs & ~s->dir; + while ((ln = ctz32(diff)) != 32) { + if (s->handler[ln]) + qemu_set_irq(s->handler[ln], (value >> ln) & 1); + diff &= ~(1 << ln); + } + break; + + case 0x14: /* KBC_REG */ + s->cols = value; + omap_mpuio_kbd_update(s); + break; + + case 0x18: /* GPIO_EVENT_MODE_REG */ + s->event = value & 0x1f; + break; + + case 0x1c: /* GPIO_INT_EDGE_REG */ + s->edge = value; + break; + + case 0x28: /* KBD_MASKIT */ + s->kbd_mask = value & 1; + omap_mpuio_kbd_update(s); + break; + + case 0x2c: /* GPIO_MASKIT */ + s->mask = value; + break; + + case 0x30: /* GPIO_DEBOUNCING_REG */ + s->debounce = value & 0x1ff; + break; + + case 0x00: /* INPUT_LATCH */ + case 0x10: /* KBR_LATCH */ + case 0x20: /* KBD_INT */ + case 0x24: /* GPIO_INT */ + case 0x34: /* GPIO_LATCH_REG */ + OMAP_RO_REG(addr); + return; + + default: + OMAP_BAD_REG(addr); + return; + } +} + +static const MemoryRegionOps omap_mpuio_ops = { + .read = omap_mpuio_read, + .write = omap_mpuio_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void omap_mpuio_reset(struct omap_mpuio_s *s) +{ + s->inputs = 0; + s->outputs = 0; + s->dir = ~0; + s->event = 0; + s->edge = 0; + s->kbd_mask = 0; + s->mask = 0; + s->debounce = 0; + s->latch = 0; + s->ints = 0; + s->row_latch = 0x1f; + s->clk = 1; +} + +static void omap_mpuio_onoff(void *opaque, int line, int on) +{ + struct omap_mpuio_s *s = (struct omap_mpuio_s *) opaque; + + s->clk = on; + if (on) + omap_mpuio_kbd_update(s); +} + +static struct omap_mpuio_s *omap_mpuio_init(MemoryRegion *memory, + hwaddr base, + qemu_irq kbd_int, qemu_irq gpio_int, qemu_irq wakeup, + omap_clk clk) +{ + struct omap_mpuio_s *s = g_new0(struct omap_mpuio_s, 1); + + s->irq = gpio_int; + s->kbd_irq = kbd_int; + s->wakeup = wakeup; + s->in = qemu_allocate_irqs(omap_mpuio_set, s, 16); + omap_mpuio_reset(s); + + memory_region_init_io(&s->iomem, NULL, &omap_mpuio_ops, s, + "omap-mpuio", 0x800); + memory_region_add_subregion(memory, base, &s->iomem); + + omap_clk_adduser(clk, qemu_allocate_irq(omap_mpuio_onoff, s, 0)); + + return s; +} + +qemu_irq *omap_mpuio_in_get(struct omap_mpuio_s *s) +{ + return s->in; +} + +void omap_mpuio_out_set(struct omap_mpuio_s *s, int line, qemu_irq handler) +{ + if (line >= 16 || line < 0) + hw_error("%s: No GPIO line %i\n", __FUNCTION__, line); + s->handler[line] = handler; +} + +void omap_mpuio_key(struct omap_mpuio_s *s, int row, int col, int down) +{ + if (row >= 5 || row < 0) + hw_error("%s: No key %i-%i\n", __FUNCTION__, col, row); + + if (down) + s->buttons[row] |= 1 << col; + else + s->buttons[row] &= ~(1 << col); + + omap_mpuio_kbd_update(s); +} + +/* MicroWire Interface */ +struct omap_uwire_s { + MemoryRegion iomem; + qemu_irq txirq; + qemu_irq rxirq; + qemu_irq txdrq; + + uint16_t txbuf; + uint16_t rxbuf; + uint16_t control; + uint16_t setup[5]; + + uWireSlave *chip[4]; +}; + +static void omap_uwire_transfer_start(struct omap_uwire_s *s) +{ + int chipselect = (s->control >> 10) & 3; /* INDEX */ + uWireSlave *slave = s->chip[chipselect]; + + if ((s->control >> 5) & 0x1f) { /* NB_BITS_WR */ + if (s->control & (1 << 12)) /* CS_CMD */ + if (slave && slave->send) + slave->send(slave->opaque, + s->txbuf >> (16 - ((s->control >> 5) & 0x1f))); + s->control &= ~(1 << 14); /* CSRB */ + /* TODO: depending on s->setup[4] bits [1:0] assert an IRQ or + * a DRQ. When is the level IRQ supposed to be reset? */ + } + + if ((s->control >> 0) & 0x1f) { /* NB_BITS_RD */ + if (s->control & (1 << 12)) /* CS_CMD */ + if (slave && slave->receive) + s->rxbuf = slave->receive(slave->opaque); + s->control |= 1 << 15; /* RDRB */ + /* TODO: depending on s->setup[4] bits [1:0] assert an IRQ or + * a DRQ. When is the level IRQ supposed to be reset? */ + } +} + +static uint64_t omap_uwire_read(void *opaque, hwaddr addr, + unsigned size) +{ + struct omap_uwire_s *s = (struct omap_uwire_s *) opaque; + int offset = addr & OMAP_MPUI_REG_MASK; + + if (size != 2) { + return omap_badwidth_read16(opaque, addr); + } + + switch (offset) { + case 0x00: /* RDR */ + s->control &= ~(1 << 15); /* RDRB */ + return s->rxbuf; + + case 0x04: /* CSR */ + return s->control; + + case 0x08: /* SR1 */ + return s->setup[0]; + case 0x0c: /* SR2 */ + return s->setup[1]; + case 0x10: /* SR3 */ + return s->setup[2]; + case 0x14: /* SR4 */ + return s->setup[3]; + case 0x18: /* SR5 */ + return s->setup[4]; + } + + OMAP_BAD_REG(addr); + return 0; +} + +static void omap_uwire_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + struct omap_uwire_s *s = (struct omap_uwire_s *) opaque; + int offset = addr & OMAP_MPUI_REG_MASK; + + if (size != 2) { + omap_badwidth_write16(opaque, addr, value); + return; + } + + switch (offset) { + case 0x00: /* TDR */ + s->txbuf = value; /* TD */ + if ((s->setup[4] & (1 << 2)) && /* AUTO_TX_EN */ + ((s->setup[4] & (1 << 3)) || /* CS_TOGGLE_TX_EN */ + (s->control & (1 << 12)))) { /* CS_CMD */ + s->control |= 1 << 14; /* CSRB */ + omap_uwire_transfer_start(s); + } + break; + + case 0x04: /* CSR */ + s->control = value & 0x1fff; + if (value & (1 << 13)) /* START */ + omap_uwire_transfer_start(s); + break; + + case 0x08: /* SR1 */ + s->setup[0] = value & 0x003f; + break; + + case 0x0c: /* SR2 */ + s->setup[1] = value & 0x0fc0; + break; + + case 0x10: /* SR3 */ + s->setup[2] = value & 0x0003; + break; + + case 0x14: /* SR4 */ + s->setup[3] = value & 0x0001; + break; + + case 0x18: /* SR5 */ + s->setup[4] = value & 0x000f; + break; + + default: + OMAP_BAD_REG(addr); + return; + } +} + +static const MemoryRegionOps omap_uwire_ops = { + .read = omap_uwire_read, + .write = omap_uwire_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void omap_uwire_reset(struct omap_uwire_s *s) +{ + s->control = 0; + s->setup[0] = 0; + s->setup[1] = 0; + s->setup[2] = 0; + s->setup[3] = 0; + s->setup[4] = 0; +} + +static struct omap_uwire_s *omap_uwire_init(MemoryRegion *system_memory, + hwaddr base, + qemu_irq txirq, qemu_irq rxirq, + qemu_irq dma, + omap_clk clk) +{ + struct omap_uwire_s *s = g_new0(struct omap_uwire_s, 1); + + s->txirq = txirq; + s->rxirq = rxirq; + s->txdrq = dma; + omap_uwire_reset(s); + + memory_region_init_io(&s->iomem, NULL, &omap_uwire_ops, s, "omap-uwire", 0x800); + memory_region_add_subregion(system_memory, base, &s->iomem); + + return s; +} + +void omap_uwire_attach(struct omap_uwire_s *s, + uWireSlave *slave, int chipselect) +{ + if (chipselect < 0 || chipselect > 3) { + fprintf(stderr, "%s: Bad chipselect %i\n", __FUNCTION__, chipselect); + exit(-1); + } + + s->chip[chipselect] = slave; +} + +/* Pseudonoise Pulse-Width Light Modulator */ +struct omap_pwl_s { + MemoryRegion iomem; + uint8_t output; + uint8_t level; + uint8_t enable; + int clk; +}; + +static void omap_pwl_update(struct omap_pwl_s *s) +{ + int output = (s->clk && s->enable) ? s->level : 0; + + if (output != s->output) { + s->output = output; + printf("%s: Backlight now at %i/256\n", __FUNCTION__, output); + } +} + +static uint64_t omap_pwl_read(void *opaque, hwaddr addr, + unsigned size) +{ + struct omap_pwl_s *s = (struct omap_pwl_s *) opaque; + int offset = addr & OMAP_MPUI_REG_MASK; + + if (size != 1) { + return omap_badwidth_read8(opaque, addr); + } + + switch (offset) { + case 0x00: /* PWL_LEVEL */ + return s->level; + case 0x04: /* PWL_CTRL */ + return s->enable; + } + OMAP_BAD_REG(addr); + return 0; +} + +static void omap_pwl_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + struct omap_pwl_s *s = (struct omap_pwl_s *) opaque; + int offset = addr & OMAP_MPUI_REG_MASK; + + if (size != 1) { + omap_badwidth_write8(opaque, addr, value); + return; + } + + switch (offset) { + case 0x00: /* PWL_LEVEL */ + s->level = value; + omap_pwl_update(s); + break; + case 0x04: /* PWL_CTRL */ + s->enable = value & 1; + omap_pwl_update(s); + break; + default: + OMAP_BAD_REG(addr); + return; + } +} + +static const MemoryRegionOps omap_pwl_ops = { + .read = omap_pwl_read, + .write = omap_pwl_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void omap_pwl_reset(struct omap_pwl_s *s) +{ + s->output = 0; + s->level = 0; + s->enable = 0; + s->clk = 1; + omap_pwl_update(s); +} + +static void omap_pwl_clk_update(void *opaque, int line, int on) +{ + struct omap_pwl_s *s = (struct omap_pwl_s *) opaque; + + s->clk = on; + omap_pwl_update(s); +} + +static struct omap_pwl_s *omap_pwl_init(MemoryRegion *system_memory, + hwaddr base, + omap_clk clk) +{ + struct omap_pwl_s *s = g_malloc0(sizeof(*s)); + + omap_pwl_reset(s); + + memory_region_init_io(&s->iomem, NULL, &omap_pwl_ops, s, + "omap-pwl", 0x800); + memory_region_add_subregion(system_memory, base, &s->iomem); + + omap_clk_adduser(clk, qemu_allocate_irq(omap_pwl_clk_update, s, 0)); + return s; +} + +/* Pulse-Width Tone module */ +struct omap_pwt_s { + MemoryRegion iomem; + uint8_t frc; + uint8_t vrc; + uint8_t gcr; + omap_clk clk; +}; + +static uint64_t omap_pwt_read(void *opaque, hwaddr addr, + unsigned size) +{ + struct omap_pwt_s *s = (struct omap_pwt_s *) opaque; + int offset = addr & OMAP_MPUI_REG_MASK; + + if (size != 1) { + return omap_badwidth_read8(opaque, addr); + } + + switch (offset) { + case 0x00: /* FRC */ + return s->frc; + case 0x04: /* VCR */ + return s->vrc; + case 0x08: /* GCR */ + return s->gcr; + } + OMAP_BAD_REG(addr); + return 0; +} + +static void omap_pwt_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + struct omap_pwt_s *s = (struct omap_pwt_s *) opaque; + int offset = addr & OMAP_MPUI_REG_MASK; + + if (size != 1) { + omap_badwidth_write8(opaque, addr, value); + return; + } + + switch (offset) { + case 0x00: /* FRC */ + s->frc = value & 0x3f; + break; + case 0x04: /* VRC */ + if ((value ^ s->vrc) & 1) { + if (value & 1) + printf("%s: %iHz buzz on\n", __FUNCTION__, (int) + /* 1.5 MHz from a 12-MHz or 13-MHz PWT_CLK */ + ((omap_clk_getrate(s->clk) >> 3) / + /* Pre-multiplexer divider */ + ((s->gcr & 2) ? 1 : 154) / + /* Octave multiplexer */ + (2 << (value & 3)) * + /* 101/107 divider */ + ((value & (1 << 2)) ? 101 : 107) * + /* 49/55 divider */ + ((value & (1 << 3)) ? 49 : 55) * + /* 50/63 divider */ + ((value & (1 << 4)) ? 50 : 63) * + /* 80/127 divider */ + ((value & (1 << 5)) ? 80 : 127) / + (107 * 55 * 63 * 127))); + else + printf("%s: silence!\n", __FUNCTION__); + } + s->vrc = value & 0x7f; + break; + case 0x08: /* GCR */ + s->gcr = value & 3; + break; + default: + OMAP_BAD_REG(addr); + return; + } +} + +static const MemoryRegionOps omap_pwt_ops = { + .read =omap_pwt_read, + .write = omap_pwt_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void omap_pwt_reset(struct omap_pwt_s *s) +{ + s->frc = 0; + s->vrc = 0; + s->gcr = 0; +} + +static struct omap_pwt_s *omap_pwt_init(MemoryRegion *system_memory, + hwaddr base, + omap_clk clk) +{ + struct omap_pwt_s *s = g_malloc0(sizeof(*s)); + s->clk = clk; + omap_pwt_reset(s); + + memory_region_init_io(&s->iomem, NULL, &omap_pwt_ops, s, + "omap-pwt", 0x800); + memory_region_add_subregion(system_memory, base, &s->iomem); + return s; +} + +/* Real-time Clock module */ +struct omap_rtc_s { + MemoryRegion iomem; + qemu_irq irq; + qemu_irq alarm; + QEMUTimer *clk; + + uint8_t interrupts; + uint8_t status; + int16_t comp_reg; + int running; + int pm_am; + int auto_comp; + int round; + struct tm alarm_tm; + time_t alarm_ti; + + struct tm current_tm; + time_t ti; + uint64_t tick; +}; + +static void omap_rtc_interrupts_update(struct omap_rtc_s *s) +{ + /* s->alarm is level-triggered */ + qemu_set_irq(s->alarm, (s->status >> 6) & 1); +} + +static void omap_rtc_alarm_update(struct omap_rtc_s *s) +{ + s->alarm_ti = mktimegm(&s->alarm_tm); + if (s->alarm_ti == -1) + printf("%s: conversion failed\n", __FUNCTION__); +} + +static uint64_t omap_rtc_read(void *opaque, hwaddr addr, + unsigned size) +{ + struct omap_rtc_s *s = (struct omap_rtc_s *) opaque; + int offset = addr & OMAP_MPUI_REG_MASK; + uint8_t i; + + if (size != 1) { + return omap_badwidth_read8(opaque, addr); + } + + switch (offset) { + case 0x00: /* SECONDS_REG */ + return to_bcd(s->current_tm.tm_sec); + + case 0x04: /* MINUTES_REG */ + return to_bcd(s->current_tm.tm_min); + + case 0x08: /* HOURS_REG */ + if (s->pm_am) + return ((s->current_tm.tm_hour > 11) << 7) | + to_bcd(((s->current_tm.tm_hour - 1) % 12) + 1); + else + return to_bcd(s->current_tm.tm_hour); + + case 0x0c: /* DAYS_REG */ + return to_bcd(s->current_tm.tm_mday); + + case 0x10: /* MONTHS_REG */ + return to_bcd(s->current_tm.tm_mon + 1); + + case 0x14: /* YEARS_REG */ + return to_bcd(s->current_tm.tm_year % 100); + + case 0x18: /* WEEK_REG */ + return s->current_tm.tm_wday; + + case 0x20: /* ALARM_SECONDS_REG */ + return to_bcd(s->alarm_tm.tm_sec); + + case 0x24: /* ALARM_MINUTES_REG */ + return to_bcd(s->alarm_tm.tm_min); + + case 0x28: /* ALARM_HOURS_REG */ + if (s->pm_am) + return ((s->alarm_tm.tm_hour > 11) << 7) | + to_bcd(((s->alarm_tm.tm_hour - 1) % 12) + 1); + else + return to_bcd(s->alarm_tm.tm_hour); + + case 0x2c: /* ALARM_DAYS_REG */ + return to_bcd(s->alarm_tm.tm_mday); + + case 0x30: /* ALARM_MONTHS_REG */ + return to_bcd(s->alarm_tm.tm_mon + 1); + + case 0x34: /* ALARM_YEARS_REG */ + return to_bcd(s->alarm_tm.tm_year % 100); + + case 0x40: /* RTC_CTRL_REG */ + return (s->pm_am << 3) | (s->auto_comp << 2) | + (s->round << 1) | s->running; + + case 0x44: /* RTC_STATUS_REG */ + i = s->status; + s->status &= ~0x3d; + return i; + + case 0x48: /* RTC_INTERRUPTS_REG */ + return s->interrupts; + + case 0x4c: /* RTC_COMP_LSB_REG */ + return ((uint16_t) s->comp_reg) & 0xff; + + case 0x50: /* RTC_COMP_MSB_REG */ + return ((uint16_t) s->comp_reg) >> 8; + } + + OMAP_BAD_REG(addr); + return 0; +} + +static void omap_rtc_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + struct omap_rtc_s *s = (struct omap_rtc_s *) opaque; + int offset = addr & OMAP_MPUI_REG_MASK; + struct tm new_tm; + time_t ti[2]; + + if (size != 1) { + omap_badwidth_write8(opaque, addr, value); + return; + } + + switch (offset) { + case 0x00: /* SECONDS_REG */ +#ifdef ALMDEBUG + printf("RTC SEC_REG <-- %02x\n", value); +#endif + s->ti -= s->current_tm.tm_sec; + s->ti += from_bcd(value); + return; + + case 0x04: /* MINUTES_REG */ +#ifdef ALMDEBUG + printf("RTC MIN_REG <-- %02x\n", value); +#endif + s->ti -= s->current_tm.tm_min * 60; + s->ti += from_bcd(value) * 60; + return; + + case 0x08: /* HOURS_REG */ +#ifdef ALMDEBUG + printf("RTC HRS_REG <-- %02x\n", value); +#endif + s->ti -= s->current_tm.tm_hour * 3600; + if (s->pm_am) { + s->ti += (from_bcd(value & 0x3f) & 12) * 3600; + s->ti += ((value >> 7) & 1) * 43200; + } else + s->ti += from_bcd(value & 0x3f) * 3600; + return; + + case 0x0c: /* DAYS_REG */ +#ifdef ALMDEBUG + printf("RTC DAY_REG <-- %02x\n", value); +#endif + s->ti -= s->current_tm.tm_mday * 86400; + s->ti += from_bcd(value) * 86400; + return; + + case 0x10: /* MONTHS_REG */ +#ifdef ALMDEBUG + printf("RTC MTH_REG <-- %02x\n", value); +#endif + memcpy(&new_tm, &s->current_tm, sizeof(new_tm)); + new_tm.tm_mon = from_bcd(value); + ti[0] = mktimegm(&s->current_tm); + ti[1] = mktimegm(&new_tm); + + if (ti[0] != -1 && ti[1] != -1) { + s->ti -= ti[0]; + s->ti += ti[1]; + } else { + /* A less accurate version */ + s->ti -= s->current_tm.tm_mon * 2592000; + s->ti += from_bcd(value) * 2592000; + } + return; + + case 0x14: /* YEARS_REG */ +#ifdef ALMDEBUG + printf("RTC YRS_REG <-- %02x\n", value); +#endif + memcpy(&new_tm, &s->current_tm, sizeof(new_tm)); + new_tm.tm_year += from_bcd(value) - (new_tm.tm_year % 100); + ti[0] = mktimegm(&s->current_tm); + ti[1] = mktimegm(&new_tm); + + if (ti[0] != -1 && ti[1] != -1) { + s->ti -= ti[0]; + s->ti += ti[1]; + } else { + /* A less accurate version */ + s->ti -= (time_t)(s->current_tm.tm_year % 100) * 31536000; + s->ti += (time_t)from_bcd(value) * 31536000; + } + return; + + case 0x18: /* WEEK_REG */ + return; /* Ignored */ + + case 0x20: /* ALARM_SECONDS_REG */ +#ifdef ALMDEBUG + printf("ALM SEC_REG <-- %02x\n", value); +#endif + s->alarm_tm.tm_sec = from_bcd(value); + omap_rtc_alarm_update(s); + return; + + case 0x24: /* ALARM_MINUTES_REG */ +#ifdef ALMDEBUG + printf("ALM MIN_REG <-- %02x\n", value); +#endif + s->alarm_tm.tm_min = from_bcd(value); + omap_rtc_alarm_update(s); + return; + + case 0x28: /* ALARM_HOURS_REG */ +#ifdef ALMDEBUG + printf("ALM HRS_REG <-- %02x\n", value); +#endif + if (s->pm_am) + s->alarm_tm.tm_hour = + ((from_bcd(value & 0x3f)) % 12) + + ((value >> 7) & 1) * 12; + else + s->alarm_tm.tm_hour = from_bcd(value); + omap_rtc_alarm_update(s); + return; + + case 0x2c: /* ALARM_DAYS_REG */ +#ifdef ALMDEBUG + printf("ALM DAY_REG <-- %02x\n", value); +#endif + s->alarm_tm.tm_mday = from_bcd(value); + omap_rtc_alarm_update(s); + return; + + case 0x30: /* ALARM_MONTHS_REG */ +#ifdef ALMDEBUG + printf("ALM MON_REG <-- %02x\n", value); +#endif + s->alarm_tm.tm_mon = from_bcd(value); + omap_rtc_alarm_update(s); + return; + + case 0x34: /* ALARM_YEARS_REG */ +#ifdef ALMDEBUG + printf("ALM YRS_REG <-- %02x\n", value); +#endif + s->alarm_tm.tm_year = from_bcd(value); + omap_rtc_alarm_update(s); + return; + + case 0x40: /* RTC_CTRL_REG */ +#ifdef ALMDEBUG + printf("RTC CONTROL <-- %02x\n", value); +#endif + s->pm_am = (value >> 3) & 1; + s->auto_comp = (value >> 2) & 1; + s->round = (value >> 1) & 1; + s->running = value & 1; + s->status &= 0xfd; + s->status |= s->running << 1; + return; + + case 0x44: /* RTC_STATUS_REG */ +#ifdef ALMDEBUG + printf("RTC STATUSL <-- %02x\n", value); +#endif + s->status &= ~((value & 0xc0) ^ 0x80); + omap_rtc_interrupts_update(s); + return; + + case 0x48: /* RTC_INTERRUPTS_REG */ +#ifdef ALMDEBUG + printf("RTC INTRS <-- %02x\n", value); +#endif + s->interrupts = value; + return; + + case 0x4c: /* RTC_COMP_LSB_REG */ +#ifdef ALMDEBUG + printf("RTC COMPLSB <-- %02x\n", value); +#endif + s->comp_reg &= 0xff00; + s->comp_reg |= 0x00ff & value; + return; + + case 0x50: /* RTC_COMP_MSB_REG */ +#ifdef ALMDEBUG + printf("RTC COMPMSB <-- %02x\n", value); +#endif + s->comp_reg &= 0x00ff; + s->comp_reg |= 0xff00 & (value << 8); + return; + + default: + OMAP_BAD_REG(addr); + return; + } +} + +static const MemoryRegionOps omap_rtc_ops = { + .read = omap_rtc_read, + .write = omap_rtc_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void omap_rtc_tick(void *opaque) +{ + struct omap_rtc_s *s = opaque; + + if (s->round) { + /* Round to nearest full minute. */ + if (s->current_tm.tm_sec < 30) + s->ti -= s->current_tm.tm_sec; + else + s->ti += 60 - s->current_tm.tm_sec; + + s->round = 0; + } + + localtime_r(&s->ti, &s->current_tm); + + if ((s->interrupts & 0x08) && s->ti == s->alarm_ti) { + s->status |= 0x40; + omap_rtc_interrupts_update(s); + } + + if (s->interrupts & 0x04) + switch (s->interrupts & 3) { + case 0: + s->status |= 0x04; + qemu_irq_pulse(s->irq); + break; + case 1: + if (s->current_tm.tm_sec) + break; + s->status |= 0x08; + qemu_irq_pulse(s->irq); + break; + case 2: + if (s->current_tm.tm_sec || s->current_tm.tm_min) + break; + s->status |= 0x10; + qemu_irq_pulse(s->irq); + break; + case 3: + if (s->current_tm.tm_sec || + s->current_tm.tm_min || s->current_tm.tm_hour) + break; + s->status |= 0x20; + qemu_irq_pulse(s->irq); + break; + } + + /* Move on */ + if (s->running) + s->ti ++; + s->tick += 1000; + + /* + * Every full hour add a rough approximation of the compensation + * register to the 32kHz Timer (which drives the RTC) value. + */ + if (s->auto_comp && !s->current_tm.tm_sec && !s->current_tm.tm_min) + s->tick += s->comp_reg * 1000 / 32768; + + timer_mod(s->clk, s->tick); +} + +static void omap_rtc_reset(struct omap_rtc_s *s) +{ + struct tm tm; + + s->interrupts = 0; + s->comp_reg = 0; + s->running = 0; + s->pm_am = 0; + s->auto_comp = 0; + s->round = 0; + s->tick = qemu_clock_get_ms(rtc_clock); + memset(&s->alarm_tm, 0, sizeof(s->alarm_tm)); + s->alarm_tm.tm_mday = 0x01; + s->status = 1 << 7; + qemu_get_timedate(&tm, 0); + s->ti = mktimegm(&tm); + + omap_rtc_alarm_update(s); + omap_rtc_tick(s); +} + +static struct omap_rtc_s *omap_rtc_init(MemoryRegion *system_memory, + hwaddr base, + qemu_irq timerirq, qemu_irq alarmirq, + omap_clk clk) +{ + struct omap_rtc_s *s = g_new0(struct omap_rtc_s, 1); + + s->irq = timerirq; + s->alarm = alarmirq; + s->clk = timer_new_ms(rtc_clock, omap_rtc_tick, s); + + omap_rtc_reset(s); + + memory_region_init_io(&s->iomem, NULL, &omap_rtc_ops, s, + "omap-rtc", 0x800); + memory_region_add_subregion(system_memory, base, &s->iomem); + + return s; +} + +/* Multi-channel Buffered Serial Port interfaces */ +struct omap_mcbsp_s { + MemoryRegion iomem; + qemu_irq txirq; + qemu_irq rxirq; + qemu_irq txdrq; + qemu_irq rxdrq; + + uint16_t spcr[2]; + uint16_t rcr[2]; + uint16_t xcr[2]; + uint16_t srgr[2]; + uint16_t mcr[2]; + uint16_t pcr; + uint16_t rcer[8]; + uint16_t xcer[8]; + int tx_rate; + int rx_rate; + int tx_req; + int rx_req; + + I2SCodec *codec; + QEMUTimer *source_timer; + QEMUTimer *sink_timer; +}; + +static void omap_mcbsp_intr_update(struct omap_mcbsp_s *s) +{ + int irq; + + switch ((s->spcr[0] >> 4) & 3) { /* RINTM */ + case 0: + irq = (s->spcr[0] >> 1) & 1; /* RRDY */ + break; + case 3: + irq = (s->spcr[0] >> 3) & 1; /* RSYNCERR */ + break; + default: + irq = 0; + break; + } + + if (irq) + qemu_irq_pulse(s->rxirq); + + switch ((s->spcr[1] >> 4) & 3) { /* XINTM */ + case 0: + irq = (s->spcr[1] >> 1) & 1; /* XRDY */ + break; + case 3: + irq = (s->spcr[1] >> 3) & 1; /* XSYNCERR */ + break; + default: + irq = 0; + break; + } + + if (irq) + qemu_irq_pulse(s->txirq); +} + +static void omap_mcbsp_rx_newdata(struct omap_mcbsp_s *s) +{ + if ((s->spcr[0] >> 1) & 1) /* RRDY */ + s->spcr[0] |= 1 << 2; /* RFULL */ + s->spcr[0] |= 1 << 1; /* RRDY */ + qemu_irq_raise(s->rxdrq); + omap_mcbsp_intr_update(s); +} + +static void omap_mcbsp_source_tick(void *opaque) +{ + struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque; + static const int bps[8] = { 0, 1, 1, 2, 2, 2, -255, -255 }; + + if (!s->rx_rate) + return; + if (s->rx_req) + printf("%s: Rx FIFO overrun\n", __FUNCTION__); + + s->rx_req = s->rx_rate << bps[(s->rcr[0] >> 5) & 7]; + + omap_mcbsp_rx_newdata(s); + timer_mod(s->source_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + + get_ticks_per_sec()); +} + +static void omap_mcbsp_rx_start(struct omap_mcbsp_s *s) +{ + if (!s->codec || !s->codec->rts) + omap_mcbsp_source_tick(s); + else if (s->codec->in.len) { + s->rx_req = s->codec->in.len; + omap_mcbsp_rx_newdata(s); + } +} + +static void omap_mcbsp_rx_stop(struct omap_mcbsp_s *s) +{ + timer_del(s->source_timer); +} + +static void omap_mcbsp_rx_done(struct omap_mcbsp_s *s) +{ + s->spcr[0] &= ~(1 << 1); /* RRDY */ + qemu_irq_lower(s->rxdrq); + omap_mcbsp_intr_update(s); +} + +static void omap_mcbsp_tx_newdata(struct omap_mcbsp_s *s) +{ + s->spcr[1] |= 1 << 1; /* XRDY */ + qemu_irq_raise(s->txdrq); + omap_mcbsp_intr_update(s); +} + +static void omap_mcbsp_sink_tick(void *opaque) +{ + struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque; + static const int bps[8] = { 0, 1, 1, 2, 2, 2, -255, -255 }; + + if (!s->tx_rate) + return; + if (s->tx_req) + printf("%s: Tx FIFO underrun\n", __FUNCTION__); + + s->tx_req = s->tx_rate << bps[(s->xcr[0] >> 5) & 7]; + + omap_mcbsp_tx_newdata(s); + timer_mod(s->sink_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + + get_ticks_per_sec()); +} + +static void omap_mcbsp_tx_start(struct omap_mcbsp_s *s) +{ + if (!s->codec || !s->codec->cts) + omap_mcbsp_sink_tick(s); + else if (s->codec->out.size) { + s->tx_req = s->codec->out.size; + omap_mcbsp_tx_newdata(s); + } +} + +static void omap_mcbsp_tx_done(struct omap_mcbsp_s *s) +{ + s->spcr[1] &= ~(1 << 1); /* XRDY */ + qemu_irq_lower(s->txdrq); + omap_mcbsp_intr_update(s); + if (s->codec && s->codec->cts) + s->codec->tx_swallow(s->codec->opaque); +} + +static void omap_mcbsp_tx_stop(struct omap_mcbsp_s *s) +{ + s->tx_req = 0; + omap_mcbsp_tx_done(s); + timer_del(s->sink_timer); +} + +static void omap_mcbsp_req_update(struct omap_mcbsp_s *s) +{ + int prev_rx_rate, prev_tx_rate; + int rx_rate = 0, tx_rate = 0; + int cpu_rate = 1500000; /* XXX */ + + /* TODO: check CLKSTP bit */ + if (s->spcr[1] & (1 << 6)) { /* GRST */ + if (s->spcr[0] & (1 << 0)) { /* RRST */ + if ((s->srgr[1] & (1 << 13)) && /* CLKSM */ + (s->pcr & (1 << 8))) { /* CLKRM */ + if (~s->pcr & (1 << 7)) /* SCLKME */ + rx_rate = cpu_rate / + ((s->srgr[0] & 0xff) + 1); /* CLKGDV */ + } else + if (s->codec) + rx_rate = s->codec->rx_rate; + } + + if (s->spcr[1] & (1 << 0)) { /* XRST */ + if ((s->srgr[1] & (1 << 13)) && /* CLKSM */ + (s->pcr & (1 << 9))) { /* CLKXM */ + if (~s->pcr & (1 << 7)) /* SCLKME */ + tx_rate = cpu_rate / + ((s->srgr[0] & 0xff) + 1); /* CLKGDV */ + } else + if (s->codec) + tx_rate = s->codec->tx_rate; + } + } + prev_tx_rate = s->tx_rate; + prev_rx_rate = s->rx_rate; + s->tx_rate = tx_rate; + s->rx_rate = rx_rate; + + if (s->codec) + s->codec->set_rate(s->codec->opaque, rx_rate, tx_rate); + + if (!prev_tx_rate && tx_rate) + omap_mcbsp_tx_start(s); + else if (s->tx_rate && !tx_rate) + omap_mcbsp_tx_stop(s); + + if (!prev_rx_rate && rx_rate) + omap_mcbsp_rx_start(s); + else if (prev_tx_rate && !tx_rate) + omap_mcbsp_rx_stop(s); +} + +static uint64_t omap_mcbsp_read(void *opaque, hwaddr addr, + unsigned size) +{ + struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque; + int offset = addr & OMAP_MPUI_REG_MASK; + uint16_t ret; + + if (size != 2) { + return omap_badwidth_read16(opaque, addr); + } + + switch (offset) { + case 0x00: /* DRR2 */ + if (((s->rcr[0] >> 5) & 7) < 3) /* RWDLEN1 */ + return 0x0000; + /* Fall through. */ + case 0x02: /* DRR1 */ + if (s->rx_req < 2) { + printf("%s: Rx FIFO underrun\n", __FUNCTION__); + omap_mcbsp_rx_done(s); + } else { + s->tx_req -= 2; + if (s->codec && s->codec->in.len >= 2) { + ret = s->codec->in.fifo[s->codec->in.start ++] << 8; + ret |= s->codec->in.fifo[s->codec->in.start ++]; + s->codec->in.len -= 2; + } else + ret = 0x0000; + if (!s->tx_req) + omap_mcbsp_rx_done(s); + return ret; + } + return 0x0000; + + case 0x04: /* DXR2 */ + case 0x06: /* DXR1 */ + return 0x0000; + + case 0x08: /* SPCR2 */ + return s->spcr[1]; + case 0x0a: /* SPCR1 */ + return s->spcr[0]; + case 0x0c: /* RCR2 */ + return s->rcr[1]; + case 0x0e: /* RCR1 */ + return s->rcr[0]; + case 0x10: /* XCR2 */ + return s->xcr[1]; + case 0x12: /* XCR1 */ + return s->xcr[0]; + case 0x14: /* SRGR2 */ + return s->srgr[1]; + case 0x16: /* SRGR1 */ + return s->srgr[0]; + case 0x18: /* MCR2 */ + return s->mcr[1]; + case 0x1a: /* MCR1 */ + return s->mcr[0]; + case 0x1c: /* RCERA */ + return s->rcer[0]; + case 0x1e: /* RCERB */ + return s->rcer[1]; + case 0x20: /* XCERA */ + return s->xcer[0]; + case 0x22: /* XCERB */ + return s->xcer[1]; + case 0x24: /* PCR0 */ + return s->pcr; + case 0x26: /* RCERC */ + return s->rcer[2]; + case 0x28: /* RCERD */ + return s->rcer[3]; + case 0x2a: /* XCERC */ + return s->xcer[2]; + case 0x2c: /* XCERD */ + return s->xcer[3]; + case 0x2e: /* RCERE */ + return s->rcer[4]; + case 0x30: /* RCERF */ + return s->rcer[5]; + case 0x32: /* XCERE */ + return s->xcer[4]; + case 0x34: /* XCERF */ + return s->xcer[5]; + case 0x36: /* RCERG */ + return s->rcer[6]; + case 0x38: /* RCERH */ + return s->rcer[7]; + case 0x3a: /* XCERG */ + return s->xcer[6]; + case 0x3c: /* XCERH */ + return s->xcer[7]; + } + + OMAP_BAD_REG(addr); + return 0; +} + +static void omap_mcbsp_writeh(void *opaque, hwaddr addr, + uint32_t value) +{ + struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque; + int offset = addr & OMAP_MPUI_REG_MASK; + + switch (offset) { + case 0x00: /* DRR2 */ + case 0x02: /* DRR1 */ + OMAP_RO_REG(addr); + return; + + case 0x04: /* DXR2 */ + if (((s->xcr[0] >> 5) & 7) < 3) /* XWDLEN1 */ + return; + /* Fall through. */ + case 0x06: /* DXR1 */ + if (s->tx_req > 1) { + s->tx_req -= 2; + if (s->codec && s->codec->cts) { + s->codec->out.fifo[s->codec->out.len ++] = (value >> 8) & 0xff; + s->codec->out.fifo[s->codec->out.len ++] = (value >> 0) & 0xff; + } + if (s->tx_req < 2) + omap_mcbsp_tx_done(s); + } else + printf("%s: Tx FIFO overrun\n", __FUNCTION__); + return; + + case 0x08: /* SPCR2 */ + s->spcr[1] &= 0x0002; + s->spcr[1] |= 0x03f9 & value; + s->spcr[1] |= 0x0004 & (value << 2); /* XEMPTY := XRST */ + if (~value & 1) /* XRST */ + s->spcr[1] &= ~6; + omap_mcbsp_req_update(s); + return; + case 0x0a: /* SPCR1 */ + s->spcr[0] &= 0x0006; + s->spcr[0] |= 0xf8f9 & value; + if (value & (1 << 15)) /* DLB */ + printf("%s: Digital Loopback mode enable attempt\n", __FUNCTION__); + if (~value & 1) { /* RRST */ + s->spcr[0] &= ~6; + s->rx_req = 0; + omap_mcbsp_rx_done(s); + } + omap_mcbsp_req_update(s); + return; + + case 0x0c: /* RCR2 */ + s->rcr[1] = value & 0xffff; + return; + case 0x0e: /* RCR1 */ + s->rcr[0] = value & 0x7fe0; + return; + case 0x10: /* XCR2 */ + s->xcr[1] = value & 0xffff; + return; + case 0x12: /* XCR1 */ + s->xcr[0] = value & 0x7fe0; + return; + case 0x14: /* SRGR2 */ + s->srgr[1] = value & 0xffff; + omap_mcbsp_req_update(s); + return; + case 0x16: /* SRGR1 */ + s->srgr[0] = value & 0xffff; + omap_mcbsp_req_update(s); + return; + case 0x18: /* MCR2 */ + s->mcr[1] = value & 0x03e3; + if (value & 3) /* XMCM */ + printf("%s: Tx channel selection mode enable attempt\n", + __FUNCTION__); + return; + case 0x1a: /* MCR1 */ + s->mcr[0] = value & 0x03e1; + if (value & 1) /* RMCM */ + printf("%s: Rx channel selection mode enable attempt\n", + __FUNCTION__); + return; + case 0x1c: /* RCERA */ + s->rcer[0] = value & 0xffff; + return; + case 0x1e: /* RCERB */ + s->rcer[1] = value & 0xffff; + return; + case 0x20: /* XCERA */ + s->xcer[0] = value & 0xffff; + return; + case 0x22: /* XCERB */ + s->xcer[1] = value & 0xffff; + return; + case 0x24: /* PCR0 */ + s->pcr = value & 0x7faf; + return; + case 0x26: /* RCERC */ + s->rcer[2] = value & 0xffff; + return; + case 0x28: /* RCERD */ + s->rcer[3] = value & 0xffff; + return; + case 0x2a: /* XCERC */ + s->xcer[2] = value & 0xffff; + return; + case 0x2c: /* XCERD */ + s->xcer[3] = value & 0xffff; + return; + case 0x2e: /* RCERE */ + s->rcer[4] = value & 0xffff; + return; + case 0x30: /* RCERF */ + s->rcer[5] = value & 0xffff; + return; + case 0x32: /* XCERE */ + s->xcer[4] = value & 0xffff; + return; + case 0x34: /* XCERF */ + s->xcer[5] = value & 0xffff; + return; + case 0x36: /* RCERG */ + s->rcer[6] = value & 0xffff; + return; + case 0x38: /* RCERH */ + s->rcer[7] = value & 0xffff; + return; + case 0x3a: /* XCERG */ + s->xcer[6] = value & 0xffff; + return; + case 0x3c: /* XCERH */ + s->xcer[7] = value & 0xffff; + return; + } + + OMAP_BAD_REG(addr); +} + +static void omap_mcbsp_writew(void *opaque, hwaddr addr, + uint32_t value) +{ + struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque; + int offset = addr & OMAP_MPUI_REG_MASK; + + if (offset == 0x04) { /* DXR */ + if (((s->xcr[0] >> 5) & 7) < 3) /* XWDLEN1 */ + return; + if (s->tx_req > 3) { + s->tx_req -= 4; + if (s->codec && s->codec->cts) { + s->codec->out.fifo[s->codec->out.len ++] = + (value >> 24) & 0xff; + s->codec->out.fifo[s->codec->out.len ++] = + (value >> 16) & 0xff; + s->codec->out.fifo[s->codec->out.len ++] = + (value >> 8) & 0xff; + s->codec->out.fifo[s->codec->out.len ++] = + (value >> 0) & 0xff; + } + if (s->tx_req < 4) + omap_mcbsp_tx_done(s); + } else + printf("%s: Tx FIFO overrun\n", __FUNCTION__); + return; + } + + omap_badwidth_write16(opaque, addr, value); +} + +static void omap_mcbsp_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + switch (size) { + case 2: + omap_mcbsp_writeh(opaque, addr, value); + break; + case 4: + omap_mcbsp_writew(opaque, addr, value); + break; + default: + omap_badwidth_write16(opaque, addr, value); + } +} + +static const MemoryRegionOps omap_mcbsp_ops = { + .read = omap_mcbsp_read, + .write = omap_mcbsp_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void omap_mcbsp_reset(struct omap_mcbsp_s *s) +{ + memset(&s->spcr, 0, sizeof(s->spcr)); + memset(&s->rcr, 0, sizeof(s->rcr)); + memset(&s->xcr, 0, sizeof(s->xcr)); + s->srgr[0] = 0x0001; + s->srgr[1] = 0x2000; + memset(&s->mcr, 0, sizeof(s->mcr)); + memset(&s->pcr, 0, sizeof(s->pcr)); + memset(&s->rcer, 0, sizeof(s->rcer)); + memset(&s->xcer, 0, sizeof(s->xcer)); + s->tx_req = 0; + s->rx_req = 0; + s->tx_rate = 0; + s->rx_rate = 0; + timer_del(s->source_timer); + timer_del(s->sink_timer); +} + +static struct omap_mcbsp_s *omap_mcbsp_init(MemoryRegion *system_memory, + hwaddr base, + qemu_irq txirq, qemu_irq rxirq, + qemu_irq *dma, omap_clk clk) +{ + struct omap_mcbsp_s *s = g_new0(struct omap_mcbsp_s, 1); + + s->txirq = txirq; + s->rxirq = rxirq; + s->txdrq = dma[0]; + s->rxdrq = dma[1]; + s->sink_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, omap_mcbsp_sink_tick, s); + s->source_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, omap_mcbsp_source_tick, s); + omap_mcbsp_reset(s); + + memory_region_init_io(&s->iomem, NULL, &omap_mcbsp_ops, s, "omap-mcbsp", 0x800); + memory_region_add_subregion(system_memory, base, &s->iomem); + + return s; +} + +static void omap_mcbsp_i2s_swallow(void *opaque, int line, int level) +{ + struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque; + + if (s->rx_rate) { + s->rx_req = s->codec->in.len; + omap_mcbsp_rx_newdata(s); + } +} + +static void omap_mcbsp_i2s_start(void *opaque, int line, int level) +{ + struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque; + + if (s->tx_rate) { + s->tx_req = s->codec->out.size; + omap_mcbsp_tx_newdata(s); + } +} + +void omap_mcbsp_i2s_attach(struct omap_mcbsp_s *s, I2SCodec *slave) +{ + s->codec = slave; + slave->rx_swallow = qemu_allocate_irq(omap_mcbsp_i2s_swallow, s, 0); + slave->tx_start = qemu_allocate_irq(omap_mcbsp_i2s_start, s, 0); +} + +/* LED Pulse Generators */ +struct omap_lpg_s { + MemoryRegion iomem; + QEMUTimer *tm; + + uint8_t control; + uint8_t power; + int64_t on; + int64_t period; + int clk; + int cycle; +}; + +static void omap_lpg_tick(void *opaque) +{ + struct omap_lpg_s *s = opaque; + + if (s->cycle) + timer_mod(s->tm, qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + s->period - s->on); + else + timer_mod(s->tm, qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + s->on); + + s->cycle = !s->cycle; + printf("%s: LED is %s\n", __FUNCTION__, s->cycle ? "on" : "off"); +} + +static void omap_lpg_update(struct omap_lpg_s *s) +{ + int64_t on, period = 1, ticks = 1000; + static const int per[8] = { 1, 2, 4, 8, 12, 16, 20, 24 }; + + if (~s->control & (1 << 6)) /* LPGRES */ + on = 0; + else if (s->control & (1 << 7)) /* PERM_ON */ + on = period; + else { + period = muldiv64(ticks, per[s->control & 7], /* PERCTRL */ + 256 / 32); + on = (s->clk && s->power) ? muldiv64(ticks, + per[(s->control >> 3) & 7], 256) : 0; /* ONCTRL */ + } + + timer_del(s->tm); + if (on == period && s->on < s->period) + printf("%s: LED is on\n", __FUNCTION__); + else if (on == 0 && s->on) + printf("%s: LED is off\n", __FUNCTION__); + else if (on && (on != s->on || period != s->period)) { + s->cycle = 0; + s->on = on; + s->period = period; + omap_lpg_tick(s); + return; + } + + s->on = on; + s->period = period; +} + +static void omap_lpg_reset(struct omap_lpg_s *s) +{ + s->control = 0x00; + s->power = 0x00; + s->clk = 1; + omap_lpg_update(s); +} + +static uint64_t omap_lpg_read(void *opaque, hwaddr addr, + unsigned size) +{ + struct omap_lpg_s *s = (struct omap_lpg_s *) opaque; + int offset = addr & OMAP_MPUI_REG_MASK; + + if (size != 1) { + return omap_badwidth_read8(opaque, addr); + } + + switch (offset) { + case 0x00: /* LCR */ + return s->control; + + case 0x04: /* PMR */ + return s->power; + } + + OMAP_BAD_REG(addr); + return 0; +} + +static void omap_lpg_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + struct omap_lpg_s *s = (struct omap_lpg_s *) opaque; + int offset = addr & OMAP_MPUI_REG_MASK; + + if (size != 1) { + omap_badwidth_write8(opaque, addr, value); + return; + } + + switch (offset) { + case 0x00: /* LCR */ + if (~value & (1 << 6)) /* LPGRES */ + omap_lpg_reset(s); + s->control = value & 0xff; + omap_lpg_update(s); + return; + + case 0x04: /* PMR */ + s->power = value & 0x01; + omap_lpg_update(s); + return; + + default: + OMAP_BAD_REG(addr); + return; + } +} + +static const MemoryRegionOps omap_lpg_ops = { + .read = omap_lpg_read, + .write = omap_lpg_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void omap_lpg_clk_update(void *opaque, int line, int on) +{ + struct omap_lpg_s *s = (struct omap_lpg_s *) opaque; + + s->clk = on; + omap_lpg_update(s); +} + +static struct omap_lpg_s *omap_lpg_init(MemoryRegion *system_memory, + hwaddr base, omap_clk clk) +{ + struct omap_lpg_s *s = g_new0(struct omap_lpg_s, 1); + + s->tm = timer_new_ms(QEMU_CLOCK_VIRTUAL, omap_lpg_tick, s); + + omap_lpg_reset(s); + + memory_region_init_io(&s->iomem, NULL, &omap_lpg_ops, s, "omap-lpg", 0x800); + memory_region_add_subregion(system_memory, base, &s->iomem); + + omap_clk_adduser(clk, qemu_allocate_irq(omap_lpg_clk_update, s, 0)); + + return s; +} + +/* MPUI Peripheral Bridge configuration */ +static uint64_t omap_mpui_io_read(void *opaque, hwaddr addr, + unsigned size) +{ + if (size != 2) { + return omap_badwidth_read16(opaque, addr); + } + + if (addr == OMAP_MPUI_BASE) /* CMR */ + return 0xfe4d; + + OMAP_BAD_REG(addr); + return 0; +} + +static void omap_mpui_io_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + /* FIXME: infinite loop */ + omap_badwidth_write16(opaque, addr, value); +} + +static const MemoryRegionOps omap_mpui_io_ops = { + .read = omap_mpui_io_read, + .write = omap_mpui_io_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void omap_setup_mpui_io(MemoryRegion *system_memory, + struct omap_mpu_state_s *mpu) +{ + memory_region_init_io(&mpu->mpui_io_iomem, NULL, &omap_mpui_io_ops, mpu, + "omap-mpui-io", 0x7fff); + memory_region_add_subregion(system_memory, OMAP_MPUI_BASE, + &mpu->mpui_io_iomem); +} + +/* General chip reset */ +static void omap1_mpu_reset(void *opaque) +{ + struct omap_mpu_state_s *mpu = (struct omap_mpu_state_s *) opaque; + + omap_dma_reset(mpu->dma); + omap_mpu_timer_reset(mpu->timer[0]); + omap_mpu_timer_reset(mpu->timer[1]); + omap_mpu_timer_reset(mpu->timer[2]); + omap_wd_timer_reset(mpu->wdt); + omap_os_timer_reset(mpu->os_timer); + omap_lcdc_reset(mpu->lcd); + omap_ulpd_pm_reset(mpu); + omap_pin_cfg_reset(mpu); + omap_mpui_reset(mpu); + omap_tipb_bridge_reset(mpu->private_tipb); + omap_tipb_bridge_reset(mpu->public_tipb); + omap_dpll_reset(mpu->dpll[0]); + omap_dpll_reset(mpu->dpll[1]); + omap_dpll_reset(mpu->dpll[2]); + omap_uart_reset(mpu->uart[0]); + omap_uart_reset(mpu->uart[1]); + omap_uart_reset(mpu->uart[2]); + omap_mmc_reset(mpu->mmc); + omap_mpuio_reset(mpu->mpuio); + omap_uwire_reset(mpu->microwire); + omap_pwl_reset(mpu->pwl); + omap_pwt_reset(mpu->pwt); + omap_rtc_reset(mpu->rtc); + omap_mcbsp_reset(mpu->mcbsp1); + omap_mcbsp_reset(mpu->mcbsp2); + omap_mcbsp_reset(mpu->mcbsp3); + omap_lpg_reset(mpu->led[0]); + omap_lpg_reset(mpu->led[1]); + omap_clkm_reset(mpu); + cpu_reset(CPU(mpu->cpu)); +} + +static const struct omap_map_s { + hwaddr phys_dsp; + hwaddr phys_mpu; + uint32_t size; + const char *name; +} omap15xx_dsp_mm[] = { + /* Strobe 0 */ + { 0xe1010000, 0xfffb0000, 0x800, "UART1 BT" }, /* CS0 */ + { 0xe1010800, 0xfffb0800, 0x800, "UART2 COM" }, /* CS1 */ + { 0xe1011800, 0xfffb1800, 0x800, "McBSP1 audio" }, /* CS3 */ + { 0xe1012000, 0xfffb2000, 0x800, "MCSI2 communication" }, /* CS4 */ + { 0xe1012800, 0xfffb2800, 0x800, "MCSI1 BT u-Law" }, /* CS5 */ + { 0xe1013000, 0xfffb3000, 0x800, "uWire" }, /* CS6 */ + { 0xe1013800, 0xfffb3800, 0x800, "I^2C" }, /* CS7 */ + { 0xe1014000, 0xfffb4000, 0x800, "USB W2FC" }, /* CS8 */ + { 0xe1014800, 0xfffb4800, 0x800, "RTC" }, /* CS9 */ + { 0xe1015000, 0xfffb5000, 0x800, "MPUIO" }, /* CS10 */ + { 0xe1015800, 0xfffb5800, 0x800, "PWL" }, /* CS11 */ + { 0xe1016000, 0xfffb6000, 0x800, "PWT" }, /* CS12 */ + { 0xe1017000, 0xfffb7000, 0x800, "McBSP3" }, /* CS14 */ + { 0xe1017800, 0xfffb7800, 0x800, "MMC" }, /* CS15 */ + { 0xe1019000, 0xfffb9000, 0x800, "32-kHz timer" }, /* CS18 */ + { 0xe1019800, 0xfffb9800, 0x800, "UART3" }, /* CS19 */ + { 0xe101c800, 0xfffbc800, 0x800, "TIPB switches" }, /* CS25 */ + /* Strobe 1 */ + { 0xe101e000, 0xfffce000, 0x800, "GPIOs" }, /* CS28 */ + + { 0 } +}; + +static void omap_setup_dsp_mapping(MemoryRegion *system_memory, + const struct omap_map_s *map) +{ + MemoryRegion *io; + + for (; map->phys_dsp; map ++) { + io = g_new(MemoryRegion, 1); + memory_region_init_alias(io, NULL, map->name, + system_memory, map->phys_mpu, map->size); + memory_region_add_subregion(system_memory, map->phys_dsp, io); + } +} + +void omap_mpu_wakeup(void *opaque, int irq, int req) +{ + struct omap_mpu_state_s *mpu = (struct omap_mpu_state_s *) opaque; + CPUState *cpu = CPU(mpu->cpu); + + if (cpu->halted) { + cpu_interrupt(cpu, CPU_INTERRUPT_EXITTB); + } +} + +static const struct dma_irq_map omap1_dma_irq_map[] = { + { 0, OMAP_INT_DMA_CH0_6 }, + { 0, OMAP_INT_DMA_CH1_7 }, + { 0, OMAP_INT_DMA_CH2_8 }, + { 0, OMAP_INT_DMA_CH3 }, + { 0, OMAP_INT_DMA_CH4 }, + { 0, OMAP_INT_DMA_CH5 }, + { 1, OMAP_INT_1610_DMA_CH6 }, + { 1, OMAP_INT_1610_DMA_CH7 }, + { 1, OMAP_INT_1610_DMA_CH8 }, + { 1, OMAP_INT_1610_DMA_CH9 }, + { 1, OMAP_INT_1610_DMA_CH10 }, + { 1, OMAP_INT_1610_DMA_CH11 }, + { 1, OMAP_INT_1610_DMA_CH12 }, + { 1, OMAP_INT_1610_DMA_CH13 }, + { 1, OMAP_INT_1610_DMA_CH14 }, + { 1, OMAP_INT_1610_DMA_CH15 } +}; + +/* DMA ports for OMAP1 */ +static int omap_validate_emiff_addr(struct omap_mpu_state_s *s, + hwaddr addr) +{ + return range_covers_byte(OMAP_EMIFF_BASE, s->sdram_size, addr); +} + +static int omap_validate_emifs_addr(struct omap_mpu_state_s *s, + hwaddr addr) +{ + return range_covers_byte(OMAP_EMIFS_BASE, OMAP_EMIFF_BASE - OMAP_EMIFS_BASE, + addr); +} + +static int omap_validate_imif_addr(struct omap_mpu_state_s *s, + hwaddr addr) +{ + return range_covers_byte(OMAP_IMIF_BASE, s->sram_size, addr); +} + +static int omap_validate_tipb_addr(struct omap_mpu_state_s *s, + hwaddr addr) +{ + return range_covers_byte(0xfffb0000, 0xffff0000 - 0xfffb0000, addr); +} + +static int omap_validate_local_addr(struct omap_mpu_state_s *s, + hwaddr addr) +{ + return range_covers_byte(OMAP_LOCALBUS_BASE, 0x1000000, addr); +} + +static int omap_validate_tipb_mpui_addr(struct omap_mpu_state_s *s, + hwaddr addr) +{ + return range_covers_byte(0xe1010000, 0xe1020004 - 0xe1010000, addr); +} + +struct omap_mpu_state_s *omap310_mpu_init(MemoryRegion *system_memory, + unsigned long sdram_size, + const char *core) +{ + int i; + struct omap_mpu_state_s *s = g_new0(struct omap_mpu_state_s, 1); + qemu_irq dma_irqs[6]; + DriveInfo *dinfo; + SysBusDevice *busdev; + + if (!core) + core = "ti925t"; + + /* Core */ + s->mpu_model = omap310; + s->cpu = cpu_arm_init(core); + if (s->cpu == NULL) { + fprintf(stderr, "Unable to find CPU definition\n"); + exit(1); + } + s->sdram_size = sdram_size; + s->sram_size = OMAP15XX_SRAM_SIZE; + + s->wakeup = qemu_allocate_irq(omap_mpu_wakeup, s, 0); + + /* Clocks */ + omap_clk_init(s); + + /* Memory-mapped stuff */ + memory_region_allocate_system_memory(&s->emiff_ram, NULL, "omap1.dram", + s->sdram_size); + memory_region_add_subregion(system_memory, OMAP_EMIFF_BASE, &s->emiff_ram); + memory_region_init_ram(&s->imif_ram, NULL, "omap1.sram", s->sram_size, + &error_fatal); + vmstate_register_ram_global(&s->imif_ram); + memory_region_add_subregion(system_memory, OMAP_IMIF_BASE, &s->imif_ram); + + omap_clkm_init(system_memory, 0xfffece00, 0xe1008000, s); + + s->ih[0] = qdev_create(NULL, "omap-intc"); + qdev_prop_set_uint32(s->ih[0], "size", 0x100); + qdev_prop_set_ptr(s->ih[0], "clk", omap_findclk(s, "arminth_ck")); + qdev_init_nofail(s->ih[0]); + busdev = SYS_BUS_DEVICE(s->ih[0]); + sysbus_connect_irq(busdev, 0, + qdev_get_gpio_in(DEVICE(s->cpu), ARM_CPU_IRQ)); + sysbus_connect_irq(busdev, 1, + qdev_get_gpio_in(DEVICE(s->cpu), ARM_CPU_FIQ)); + sysbus_mmio_map(busdev, 0, 0xfffecb00); + s->ih[1] = qdev_create(NULL, "omap-intc"); + qdev_prop_set_uint32(s->ih[1], "size", 0x800); + qdev_prop_set_ptr(s->ih[1], "clk", omap_findclk(s, "arminth_ck")); + qdev_init_nofail(s->ih[1]); + busdev = SYS_BUS_DEVICE(s->ih[1]); + sysbus_connect_irq(busdev, 0, + qdev_get_gpio_in(s->ih[0], OMAP_INT_15XX_IH2_IRQ)); + /* The second interrupt controller's FIQ output is not wired up */ + sysbus_mmio_map(busdev, 0, 0xfffe0000); + + for (i = 0; i < 6; i++) { + dma_irqs[i] = qdev_get_gpio_in(s->ih[omap1_dma_irq_map[i].ih], + omap1_dma_irq_map[i].intr); + } + s->dma = omap_dma_init(0xfffed800, dma_irqs, system_memory, + qdev_get_gpio_in(s->ih[0], OMAP_INT_DMA_LCD), + s, omap_findclk(s, "dma_ck"), omap_dma_3_1); + + s->port[emiff ].addr_valid = omap_validate_emiff_addr; + s->port[emifs ].addr_valid = omap_validate_emifs_addr; + s->port[imif ].addr_valid = omap_validate_imif_addr; + s->port[tipb ].addr_valid = omap_validate_tipb_addr; + s->port[local ].addr_valid = omap_validate_local_addr; + s->port[tipb_mpui].addr_valid = omap_validate_tipb_mpui_addr; + + /* Register SDRAM and SRAM DMA ports for fast transfers. */ + soc_dma_port_add_mem(s->dma, memory_region_get_ram_ptr(&s->emiff_ram), + OMAP_EMIFF_BASE, s->sdram_size); + soc_dma_port_add_mem(s->dma, memory_region_get_ram_ptr(&s->imif_ram), + OMAP_IMIF_BASE, s->sram_size); + + s->timer[0] = omap_mpu_timer_init(system_memory, 0xfffec500, + qdev_get_gpio_in(s->ih[0], OMAP_INT_TIMER1), + omap_findclk(s, "mputim_ck")); + s->timer[1] = omap_mpu_timer_init(system_memory, 0xfffec600, + qdev_get_gpio_in(s->ih[0], OMAP_INT_TIMER2), + omap_findclk(s, "mputim_ck")); + s->timer[2] = omap_mpu_timer_init(system_memory, 0xfffec700, + qdev_get_gpio_in(s->ih[0], OMAP_INT_TIMER3), + omap_findclk(s, "mputim_ck")); + + s->wdt = omap_wd_timer_init(system_memory, 0xfffec800, + qdev_get_gpio_in(s->ih[0], OMAP_INT_WD_TIMER), + omap_findclk(s, "armwdt_ck")); + + s->os_timer = omap_os_timer_init(system_memory, 0xfffb9000, + qdev_get_gpio_in(s->ih[1], OMAP_INT_OS_TIMER), + omap_findclk(s, "clk32-kHz")); + + s->lcd = omap_lcdc_init(system_memory, 0xfffec000, + qdev_get_gpio_in(s->ih[0], OMAP_INT_LCD_CTRL), + omap_dma_get_lcdch(s->dma), + omap_findclk(s, "lcd_ck")); + + omap_ulpd_pm_init(system_memory, 0xfffe0800, s); + omap_pin_cfg_init(system_memory, 0xfffe1000, s); + omap_id_init(system_memory, s); + + omap_mpui_init(system_memory, 0xfffec900, s); + + s->private_tipb = omap_tipb_bridge_init(system_memory, 0xfffeca00, + qdev_get_gpio_in(s->ih[0], OMAP_INT_BRIDGE_PRIV), + omap_findclk(s, "tipb_ck")); + s->public_tipb = omap_tipb_bridge_init(system_memory, 0xfffed300, + qdev_get_gpio_in(s->ih[0], OMAP_INT_BRIDGE_PUB), + omap_findclk(s, "tipb_ck")); + + omap_tcmi_init(system_memory, 0xfffecc00, s); + + s->uart[0] = omap_uart_init(0xfffb0000, + qdev_get_gpio_in(s->ih[1], OMAP_INT_UART1), + omap_findclk(s, "uart1_ck"), + omap_findclk(s, "uart1_ck"), + s->drq[OMAP_DMA_UART1_TX], s->drq[OMAP_DMA_UART1_RX], + "uart1", + serial_hds[0]); + s->uart[1] = omap_uart_init(0xfffb0800, + qdev_get_gpio_in(s->ih[1], OMAP_INT_UART2), + omap_findclk(s, "uart2_ck"), + omap_findclk(s, "uart2_ck"), + s->drq[OMAP_DMA_UART2_TX], s->drq[OMAP_DMA_UART2_RX], + "uart2", + serial_hds[0] ? serial_hds[1] : NULL); + s->uart[2] = omap_uart_init(0xfffb9800, + qdev_get_gpio_in(s->ih[0], OMAP_INT_UART3), + omap_findclk(s, "uart3_ck"), + omap_findclk(s, "uart3_ck"), + s->drq[OMAP_DMA_UART3_TX], s->drq[OMAP_DMA_UART3_RX], + "uart3", + serial_hds[0] && serial_hds[1] ? serial_hds[2] : NULL); + + s->dpll[0] = omap_dpll_init(system_memory, 0xfffecf00, + omap_findclk(s, "dpll1")); + s->dpll[1] = omap_dpll_init(system_memory, 0xfffed000, + omap_findclk(s, "dpll2")); + s->dpll[2] = omap_dpll_init(system_memory, 0xfffed100, + omap_findclk(s, "dpll3")); + + dinfo = drive_get(IF_SD, 0, 0); + if (!dinfo) { + fprintf(stderr, "qemu: missing SecureDigital device\n"); + exit(1); + } + s->mmc = omap_mmc_init(0xfffb7800, system_memory, + blk_by_legacy_dinfo(dinfo), + qdev_get_gpio_in(s->ih[1], OMAP_INT_OQN), + &s->drq[OMAP_DMA_MMC_TX], + omap_findclk(s, "mmc_ck")); + + s->mpuio = omap_mpuio_init(system_memory, 0xfffb5000, + qdev_get_gpio_in(s->ih[1], OMAP_INT_KEYBOARD), + qdev_get_gpio_in(s->ih[1], OMAP_INT_MPUIO), + s->wakeup, omap_findclk(s, "clk32-kHz")); + + s->gpio = qdev_create(NULL, "omap-gpio"); + qdev_prop_set_int32(s->gpio, "mpu_model", s->mpu_model); + qdev_prop_set_ptr(s->gpio, "clk", omap_findclk(s, "arm_gpio_ck")); + qdev_init_nofail(s->gpio); + sysbus_connect_irq(SYS_BUS_DEVICE(s->gpio), 0, + qdev_get_gpio_in(s->ih[0], OMAP_INT_GPIO_BANK1)); + sysbus_mmio_map(SYS_BUS_DEVICE(s->gpio), 0, 0xfffce000); + + s->microwire = omap_uwire_init(system_memory, 0xfffb3000, + qdev_get_gpio_in(s->ih[1], OMAP_INT_uWireTX), + qdev_get_gpio_in(s->ih[1], OMAP_INT_uWireRX), + s->drq[OMAP_DMA_UWIRE_TX], omap_findclk(s, "mpuper_ck")); + + s->pwl = omap_pwl_init(system_memory, 0xfffb5800, + omap_findclk(s, "armxor_ck")); + s->pwt = omap_pwt_init(system_memory, 0xfffb6000, + omap_findclk(s, "armxor_ck")); + + s->i2c[0] = qdev_create(NULL, "omap_i2c"); + qdev_prop_set_uint8(s->i2c[0], "revision", 0x11); + qdev_prop_set_ptr(s->i2c[0], "fclk", omap_findclk(s, "mpuper_ck")); + qdev_init_nofail(s->i2c[0]); + busdev = SYS_BUS_DEVICE(s->i2c[0]); + sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(s->ih[1], OMAP_INT_I2C)); + sysbus_connect_irq(busdev, 1, s->drq[OMAP_DMA_I2C_TX]); + sysbus_connect_irq(busdev, 2, s->drq[OMAP_DMA_I2C_RX]); + sysbus_mmio_map(busdev, 0, 0xfffb3800); + + s->rtc = omap_rtc_init(system_memory, 0xfffb4800, + qdev_get_gpio_in(s->ih[1], OMAP_INT_RTC_TIMER), + qdev_get_gpio_in(s->ih[1], OMAP_INT_RTC_ALARM), + omap_findclk(s, "clk32-kHz")); + + s->mcbsp1 = omap_mcbsp_init(system_memory, 0xfffb1800, + qdev_get_gpio_in(s->ih[1], OMAP_INT_McBSP1TX), + qdev_get_gpio_in(s->ih[1], OMAP_INT_McBSP1RX), + &s->drq[OMAP_DMA_MCBSP1_TX], omap_findclk(s, "dspxor_ck")); + s->mcbsp2 = omap_mcbsp_init(system_memory, 0xfffb1000, + qdev_get_gpio_in(s->ih[0], + OMAP_INT_310_McBSP2_TX), + qdev_get_gpio_in(s->ih[0], + OMAP_INT_310_McBSP2_RX), + &s->drq[OMAP_DMA_MCBSP2_TX], omap_findclk(s, "mpuper_ck")); + s->mcbsp3 = omap_mcbsp_init(system_memory, 0xfffb7000, + qdev_get_gpio_in(s->ih[1], OMAP_INT_McBSP3TX), + qdev_get_gpio_in(s->ih[1], OMAP_INT_McBSP3RX), + &s->drq[OMAP_DMA_MCBSP3_TX], omap_findclk(s, "dspxor_ck")); + + s->led[0] = omap_lpg_init(system_memory, + 0xfffbd000, omap_findclk(s, "clk32-kHz")); + s->led[1] = omap_lpg_init(system_memory, + 0xfffbd800, omap_findclk(s, "clk32-kHz")); + + /* Register mappings not currenlty implemented: + * MCSI2 Comm fffb2000 - fffb27ff (not mapped on OMAP310) + * MCSI1 Bluetooth fffb2800 - fffb2fff (not mapped on OMAP310) + * USB W2FC fffb4000 - fffb47ff + * Camera Interface fffb6800 - fffb6fff + * USB Host fffba000 - fffba7ff + * FAC fffba800 - fffbafff + * HDQ/1-Wire fffbc000 - fffbc7ff + * TIPB switches fffbc800 - fffbcfff + * Mailbox fffcf000 - fffcf7ff + * Local bus IF fffec100 - fffec1ff + * Local bus MMU fffec200 - fffec2ff + * DSP MMU fffed200 - fffed2ff + */ + + omap_setup_dsp_mapping(system_memory, omap15xx_dsp_mm); + omap_setup_mpui_io(system_memory, s); + + qemu_register_reset(omap1_mpu_reset, s); + + return s; +} |
