diff options
Diffstat (limited to 'hw/misc/zynq_slcr.c')
-rw-r--r-- | hw/misc/zynq_slcr.c | 536 |
1 files changed, 536 insertions, 0 deletions
diff --git a/hw/misc/zynq_slcr.c b/hw/misc/zynq_slcr.c new file mode 100644 index 0000000..8418327 --- /dev/null +++ b/hw/misc/zynq_slcr.c @@ -0,0 +1,536 @@ +/* + * Status and system control registers for Xilinx Zynq Platform + * + * Copyright (c) 2011 Michal Simek <monstr@monstr.eu> + * Copyright (c) 2012 PetaLogix Pty Ltd. + * Based on hw/arm_sysctl.c, written by Paul Brook + * + * 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 of the License, or (at your option) any later version. + * + * 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/hw.h" +#include "qemu/timer.h" +#include "hw/sysbus.h" +#include "sysemu/sysemu.h" + +#ifdef ZYNQ_ARM_SLCR_ERR_DEBUG +#define DB_PRINT(...) do { \ + fprintf(stderr, ": %s: ", __func__); \ + fprintf(stderr, ## __VA_ARGS__); \ + } while (0); +#else + #define DB_PRINT(...) +#endif + +#define XILINX_LOCK_KEY 0x767b +#define XILINX_UNLOCK_KEY 0xdf0d + +typedef enum { + ARM_PLL_CTRL, + DDR_PLL_CTRL, + IO_PLL_CTRL, + PLL_STATUS, + ARM_PPL_CFG, + DDR_PLL_CFG, + IO_PLL_CFG, + PLL_BG_CTRL, + PLL_MAX +} PLLValues; + +typedef enum { + ARM_CLK_CTRL, + DDR_CLK_CTRL, + DCI_CLK_CTRL, + APER_CLK_CTRL, + USB0_CLK_CTRL, + USB1_CLK_CTRL, + GEM0_RCLK_CTRL, + GEM1_RCLK_CTRL, + GEM0_CLK_CTRL, + GEM1_CLK_CTRL, + SMC_CLK_CTRL, + LQSPI_CLK_CTRL, + SDIO_CLK_CTRL, + UART_CLK_CTRL, + SPI_CLK_CTRL, + CAN_CLK_CTRL, + CAN_MIOCLK_CTRL, + DBG_CLK_CTRL, + PCAP_CLK_CTRL, + TOPSW_CLK_CTRL, + CLK_MAX +} ClkValues; + +typedef enum { + CLK_CTRL, + THR_CTRL, + THR_CNT, + THR_STA, + FPGA_MAX +} FPGAValues; + +typedef enum { + SYNC_CTRL, + SYNC_STATUS, + BANDGAP_TRIP, + CC_TEST, + PLL_PREDIVISOR, + CLK_621_TRUE, + PICTURE_DBG, + PICTURE_DBG_UCNT, + PICTURE_DBG_LCNT, + MISC_MAX +} MiscValues; + +typedef enum { + PSS, + DDDR, + DMAC = 3, + USB, + GEM, + SDIO, + SPI, + CAN, + I2C, + UART, + GPIO, + LQSPI, + SMC, + OCM, + DEVCI, + FPGA, + A9_CPU, + RS_AWDT, + RST_REASON, + RST_REASON_CLR, + REBOOT_STATUS, + BOOT_MODE, + RESET_MAX +} ResetValues; + +typedef struct { + SysBusDevice busdev; + MemoryRegion iomem; + + union { + struct { + uint16_t scl; + uint16_t lockval; + uint32_t pll[PLL_MAX]; /* 0x100 - 0x11C */ + uint32_t clk[CLK_MAX]; /* 0x120 - 0x16C */ + uint32_t fpga[4][FPGA_MAX]; /* 0x170 - 0x1AC */ + uint32_t misc[MISC_MAX]; /* 0x1B0 - 0x1D8 */ + uint32_t reset[RESET_MAX]; /* 0x200 - 0x25C */ + uint32_t apu_ctrl; /* 0x300 */ + uint32_t wdt_clk_sel; /* 0x304 */ + uint32_t tz_ocm[3]; /* 0x400 - 0x408 */ + uint32_t tz_ddr; /* 0x430 */ + uint32_t tz_dma[3]; /* 0x440 - 0x448 */ + uint32_t tz_misc[3]; /* 0x450 - 0x458 */ + uint32_t tz_fpga[2]; /* 0x484 - 0x488 */ + uint32_t dbg_ctrl; /* 0x500 */ + uint32_t pss_idcode; /* 0x530 */ + uint32_t ddr[8]; /* 0x600 - 0x620 - 0x604-missing */ + uint32_t mio[54]; /* 0x700 - 0x7D4 */ + uint32_t mio_func[4]; /* 0x800 - 0x810 */ + uint32_t sd[2]; /* 0x830 - 0x834 */ + uint32_t lvl_shftr_en; /* 0x900 */ + uint32_t ocm_cfg; /* 0x910 */ + uint32_t cpu_ram[8]; /* 0xA00 - 0xA1C */ + uint32_t iou[7]; /* 0xA30 - 0xA48 */ + uint32_t dmac_ram; /* 0xA50 */ + uint32_t afi[4][3]; /* 0xA60 - 0xA8C */ + uint32_t ocm[3]; /* 0xA90 - 0xA98 */ + uint32_t devci_ram; /* 0xAA0 */ + uint32_t csg_ram; /* 0xAB0 */ + uint32_t gpiob[12]; /* 0xB00 - 0xB2C */ + uint32_t ddriob[14]; /* 0xB40 - 0xB74 */ + }; + uint8_t data[0x1000]; + }; +} ZynqSLCRState; + +static void zynq_slcr_reset(DeviceState *d) +{ + int i; + ZynqSLCRState *s = + FROM_SYSBUS(ZynqSLCRState, SYS_BUS_DEVICE(d)); + + DB_PRINT("RESET\n"); + + s->lockval = 1; + /* 0x100 - 0x11C */ + s->pll[ARM_PLL_CTRL] = 0x0001A008; + s->pll[DDR_PLL_CTRL] = 0x0001A008; + s->pll[IO_PLL_CTRL] = 0x0001A008; + s->pll[PLL_STATUS] = 0x0000003F; + s->pll[ARM_PPL_CFG] = 0x00014000; + s->pll[DDR_PLL_CFG] = 0x00014000; + s->pll[IO_PLL_CFG] = 0x00014000; + + /* 0x120 - 0x16C */ + s->clk[ARM_CLK_CTRL] = 0x1F000400; + s->clk[DDR_CLK_CTRL] = 0x18400003; + s->clk[DCI_CLK_CTRL] = 0x01E03201; + s->clk[APER_CLK_CTRL] = 0x01FFCCCD; + s->clk[USB0_CLK_CTRL] = s->clk[USB1_CLK_CTRL] = 0x00101941; + s->clk[GEM0_RCLK_CTRL] = s->clk[GEM1_RCLK_CTRL] = 0x00000001; + s->clk[GEM0_CLK_CTRL] = s->clk[GEM1_CLK_CTRL] = 0x00003C01; + s->clk[SMC_CLK_CTRL] = 0x00003C01; + s->clk[LQSPI_CLK_CTRL] = 0x00002821; + s->clk[SDIO_CLK_CTRL] = 0x00001E03; + s->clk[UART_CLK_CTRL] = 0x00003F03; + s->clk[SPI_CLK_CTRL] = 0x00003F03; + s->clk[CAN_CLK_CTRL] = 0x00501903; + s->clk[DBG_CLK_CTRL] = 0x00000F03; + s->clk[PCAP_CLK_CTRL] = 0x00000F01; + + /* 0x170 - 0x1AC */ + s->fpga[0][CLK_CTRL] = s->fpga[1][CLK_CTRL] = s->fpga[2][CLK_CTRL] = + s->fpga[3][CLK_CTRL] = 0x00101800; + s->fpga[0][THR_STA] = s->fpga[1][THR_STA] = s->fpga[2][THR_STA] = + s->fpga[3][THR_STA] = 0x00010000; + + /* 0x1B0 - 0x1D8 */ + s->misc[BANDGAP_TRIP] = 0x0000001F; + s->misc[PLL_PREDIVISOR] = 0x00000001; + s->misc[CLK_621_TRUE] = 0x00000001; + + /* 0x200 - 0x25C */ + s->reset[FPGA] = 0x01F33F0F; + s->reset[RST_REASON] = 0x00000040; + + /* 0x700 - 0x7D4 */ + for (i = 0; i < 54; i++) { + s->mio[i] = 0x00001601; + } + for (i = 2; i <= 8; i++) { + s->mio[i] = 0x00000601; + } + + /* MIO_MST_TRI0, MIO_MST_TRI1 */ + s->mio_func[2] = s->mio_func[3] = 0xFFFFFFFF; + + s->cpu_ram[0] = s->cpu_ram[1] = s->cpu_ram[3] = + s->cpu_ram[4] = s->cpu_ram[7] = 0x00010101; + s->cpu_ram[2] = s->cpu_ram[5] = 0x01010101; + s->cpu_ram[6] = 0x00000001; + + s->iou[0] = s->iou[1] = s->iou[2] = s->iou[3] = 0x09090909; + s->iou[4] = s->iou[5] = 0x00090909; + s->iou[6] = 0x00000909; + + s->dmac_ram = 0x00000009; + + s->afi[0][0] = s->afi[0][1] = 0x09090909; + s->afi[1][0] = s->afi[1][1] = 0x09090909; + s->afi[2][0] = s->afi[2][1] = 0x09090909; + s->afi[3][0] = s->afi[3][1] = 0x09090909; + s->afi[0][2] = s->afi[1][2] = s->afi[2][2] = s->afi[3][2] = 0x00000909; + + s->ocm[0] = 0x01010101; + s->ocm[1] = s->ocm[2] = 0x09090909; + + s->devci_ram = 0x00000909; + s->csg_ram = 0x00000001; + + s->ddriob[0] = s->ddriob[1] = s->ddriob[2] = s->ddriob[3] = 0x00000e00; + s->ddriob[4] = s->ddriob[5] = s->ddriob[6] = 0x00000e00; + s->ddriob[12] = 0x00000021; +} + +static inline uint32_t zynq_slcr_read_imp(void *opaque, + hwaddr offset) +{ + ZynqSLCRState *s = (ZynqSLCRState *)opaque; + + switch (offset) { + case 0x0: /* SCL */ + return s->scl; + case 0x4: /* LOCK */ + case 0x8: /* UNLOCK */ + DB_PRINT("Reading SCLR_LOCK/UNLOCK is not enabled\n"); + return 0; + case 0x0C: /* LOCKSTA */ + return s->lockval; + case 0x100 ... 0x11C: + return s->pll[(offset - 0x100) / 4]; + case 0x120 ... 0x16C: + return s->clk[(offset - 0x120) / 4]; + case 0x170 ... 0x1AC: + return s->fpga[0][(offset - 0x170) / 4]; + case 0x1B0 ... 0x1D8: + return s->misc[(offset - 0x1B0) / 4]; + case 0x200 ... 0x258: + return s->reset[(offset - 0x200) / 4]; + case 0x25c: + return 1; + case 0x300: + return s->apu_ctrl; + case 0x304: + return s->wdt_clk_sel; + case 0x400 ... 0x408: + return s->tz_ocm[(offset - 0x400) / 4]; + case 0x430: + return s->tz_ddr; + case 0x440 ... 0x448: + return s->tz_dma[(offset - 0x440) / 4]; + case 0x450 ... 0x458: + return s->tz_misc[(offset - 0x450) / 4]; + case 0x484 ... 0x488: + return s->tz_fpga[(offset - 0x484) / 4]; + case 0x500: + return s->dbg_ctrl; + case 0x530: + return s->pss_idcode; + case 0x600 ... 0x620: + if (offset == 0x604) { + goto bad_reg; + } + return s->ddr[(offset - 0x600) / 4]; + case 0x700 ... 0x7D4: + return s->mio[(offset - 0x700) / 4]; + case 0x800 ... 0x810: + return s->mio_func[(offset - 0x800) / 4]; + case 0x830 ... 0x834: + return s->sd[(offset - 0x830) / 4]; + case 0x900: + return s->lvl_shftr_en; + case 0x910: + return s->ocm_cfg; + case 0xA00 ... 0xA1C: + return s->cpu_ram[(offset - 0xA00) / 4]; + case 0xA30 ... 0xA48: + return s->iou[(offset - 0xA30) / 4]; + case 0xA50: + return s->dmac_ram; + case 0xA60 ... 0xA8C: + return s->afi[0][(offset - 0xA60) / 4]; + case 0xA90 ... 0xA98: + return s->ocm[(offset - 0xA90) / 4]; + case 0xAA0: + return s->devci_ram; + case 0xAB0: + return s->csg_ram; + case 0xB00 ... 0xB2C: + return s->gpiob[(offset - 0xB00) / 4]; + case 0xB40 ... 0xB74: + return s->ddriob[(offset - 0xB40) / 4]; + default: + bad_reg: + DB_PRINT("Bad register offset 0x%x\n", (int)offset); + return 0; + } +} + +static uint64_t zynq_slcr_read(void *opaque, hwaddr offset, + unsigned size) +{ + uint32_t ret = zynq_slcr_read_imp(opaque, offset); + + DB_PRINT("addr: %08x data: %08x\n", (unsigned)offset, (unsigned)ret); + return ret; +} + +static void zynq_slcr_write(void *opaque, hwaddr offset, + uint64_t val, unsigned size) +{ + ZynqSLCRState *s = (ZynqSLCRState *)opaque; + + DB_PRINT("offset: %08x data: %08x\n", (unsigned)offset, (unsigned)val); + + switch (offset) { + case 0x00: /* SCL */ + s->scl = val & 0x1; + return; + case 0x4: /* SLCR_LOCK */ + if ((val & 0xFFFF) == XILINX_LOCK_KEY) { + DB_PRINT("XILINX LOCK 0xF8000000 + 0x%x <= 0x%x\n", (int)offset, + (unsigned)val & 0xFFFF); + s->lockval = 1; + } else { + DB_PRINT("WRONG XILINX LOCK KEY 0xF8000000 + 0x%x <= 0x%x\n", + (int)offset, (unsigned)val & 0xFFFF); + } + return; + case 0x8: /* SLCR_UNLOCK */ + if ((val & 0xFFFF) == XILINX_UNLOCK_KEY) { + DB_PRINT("XILINX UNLOCK 0xF8000000 + 0x%x <= 0x%x\n", (int)offset, + (unsigned)val & 0xFFFF); + s->lockval = 0; + } else { + DB_PRINT("WRONG XILINX UNLOCK KEY 0xF8000000 + 0x%x <= 0x%x\n", + (int)offset, (unsigned)val & 0xFFFF); + } + return; + case 0xc: /* LOCKSTA */ + DB_PRINT("Writing SCLR_LOCKSTA is not enabled\n"); + return; + } + + if (!s->lockval) { + switch (offset) { + case 0x100 ... 0x11C: + if (offset == 0x10C) { + goto bad_reg; + } + s->pll[(offset - 0x100) / 4] = val; + break; + case 0x120 ... 0x16C: + s->clk[(offset - 0x120) / 4] = val; + break; + case 0x170 ... 0x1AC: + s->fpga[0][(offset - 0x170) / 4] = val; + break; + case 0x1B0 ... 0x1D8: + s->misc[(offset - 0x1B0) / 4] = val; + break; + case 0x200 ... 0x25C: + if (offset == 0x250) { + goto bad_reg; + } + s->reset[(offset - 0x200) / 4] = val; + break; + case 0x300: + s->apu_ctrl = val; + break; + case 0x304: + s->wdt_clk_sel = val; + break; + case 0x400 ... 0x408: + s->tz_ocm[(offset - 0x400) / 4] = val; + break; + case 0x430: + s->tz_ddr = val; + break; + case 0x440 ... 0x448: + s->tz_dma[(offset - 0x440) / 4] = val; + break; + case 0x450 ... 0x458: + s->tz_misc[(offset - 0x450) / 4] = val; + break; + case 0x484 ... 0x488: + s->tz_fpga[(offset - 0x484) / 4] = val; + break; + case 0x500: + s->dbg_ctrl = val; + break; + case 0x530: + s->pss_idcode = val; + break; + case 0x600 ... 0x620: + if (offset == 0x604) { + goto bad_reg; + } + s->ddr[(offset - 0x600) / 4] = val; + break; + case 0x700 ... 0x7D4: + s->mio[(offset - 0x700) / 4] = val; + break; + case 0x800 ... 0x810: + s->mio_func[(offset - 0x800) / 4] = val; + break; + case 0x830 ... 0x834: + s->sd[(offset - 0x830) / 4] = val; + break; + case 0x900: + s->lvl_shftr_en = val; + break; + case 0x910: + break; + case 0xA00 ... 0xA1C: + s->cpu_ram[(offset - 0xA00) / 4] = val; + break; + case 0xA30 ... 0xA48: + s->iou[(offset - 0xA30) / 4] = val; + break; + case 0xA50: + s->dmac_ram = val; + break; + case 0xA60 ... 0xA8C: + s->afi[0][(offset - 0xA60) / 4] = val; + break; + case 0xA90: + s->ocm[0] = val; + break; + case 0xAA0: + s->devci_ram = val; + break; + case 0xAB0: + s->csg_ram = val; + break; + case 0xB00 ... 0xB2C: + if (offset == 0xB20 || offset == 0xB2C) { + goto bad_reg; + } + s->gpiob[(offset - 0xB00) / 4] = val; + break; + case 0xB40 ... 0xB74: + s->ddriob[(offset - 0xB40) / 4] = val; + break; + default: + bad_reg: + DB_PRINT("Bad register write %x <= %08x\n", (int)offset, + (unsigned)val); + } + } else { + DB_PRINT("SCLR registers are locked. Unlock them first\n"); + } +} + +static const MemoryRegionOps slcr_ops = { + .read = zynq_slcr_read, + .write = zynq_slcr_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static int zynq_slcr_init(SysBusDevice *dev) +{ + ZynqSLCRState *s = FROM_SYSBUS(ZynqSLCRState, dev); + + memory_region_init_io(&s->iomem, &slcr_ops, s, "slcr", 0x1000); + sysbus_init_mmio(dev, &s->iomem); + + return 0; +} + +static const VMStateDescription vmstate_zynq_slcr = { + .name = "zynq_slcr", + .version_id = 1, + .minimum_version_id = 1, + .minimum_version_id_old = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT8_ARRAY(data, ZynqSLCRState, 0x1000), + VMSTATE_END_OF_LIST() + } +}; + +static void zynq_slcr_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass); + + sdc->init = zynq_slcr_init; + dc->vmsd = &vmstate_zynq_slcr; + dc->reset = zynq_slcr_reset; +} + +static const TypeInfo zynq_slcr_info = { + .class_init = zynq_slcr_class_init, + .name = "xilinx,zynq_slcr", + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(ZynqSLCRState), +}; + +static void zynq_slcr_register_types(void) +{ + type_register_static(&zynq_slcr_info); +} + +type_init(zynq_slcr_register_types) |