diff options
Diffstat (limited to 'src/hw/misc/zynq_slcr.c')
| -rw-r--r-- | src/hw/misc/zynq_slcr.c | 458 |
1 files changed, 458 insertions, 0 deletions
diff --git a/src/hw/misc/zynq_slcr.c b/src/hw/misc/zynq_slcr.c new file mode 100644 index 0000000..3d78708 --- /dev/null +++ b/src/hw/misc/zynq_slcr.c @@ -0,0 +1,458 @@ +/* + * 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" + +#ifndef ZYNQ_SLCR_ERR_DEBUG +#define ZYNQ_SLCR_ERR_DEBUG 0 +#endif + +#define DB_PRINT(...) do { \ + if (ZYNQ_SLCR_ERR_DEBUG) { \ + fprintf(stderr, ": %s: ", __func__); \ + fprintf(stderr, ## __VA_ARGS__); \ + } \ + } while (0); + +#define XILINX_LOCK_KEY 0x767b +#define XILINX_UNLOCK_KEY 0xdf0d + +#define R_PSS_RST_CTRL_SOFT_RST 0x1 + +enum { + SCL = 0x000 / 4, + LOCK, + UNLOCK, + LOCKSTA, + + ARM_PLL_CTRL = 0x100 / 4, + DDR_PLL_CTRL, + IO_PLL_CTRL, + PLL_STATUS, + ARM_PLL_CFG, + DDR_PLL_CFG, + IO_PLL_CFG, + + ARM_CLK_CTRL = 0x120 / 4, + 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, + +#define FPGA_CTRL_REGS(n, start) \ + FPGA ## n ## _CLK_CTRL = (start) / 4, \ + FPGA ## n ## _THR_CTRL, \ + FPGA ## n ## _THR_CNT, \ + FPGA ## n ## _THR_STA, + FPGA_CTRL_REGS(0, 0x170) + FPGA_CTRL_REGS(1, 0x180) + FPGA_CTRL_REGS(2, 0x190) + FPGA_CTRL_REGS(3, 0x1a0) + + BANDGAP_TRIP = 0x1b8 / 4, + PLL_PREDIVISOR = 0x1c0 / 4, + CLK_621_TRUE, + + PSS_RST_CTRL = 0x200 / 4, + DDR_RST_CTRL, + TOPSW_RESET_CTRL, + DMAC_RST_CTRL, + USB_RST_CTRL, + GEM_RST_CTRL, + SDIO_RST_CTRL, + SPI_RST_CTRL, + CAN_RST_CTRL, + I2C_RST_CTRL, + UART_RST_CTRL, + GPIO_RST_CTRL, + LQSPI_RST_CTRL, + SMC_RST_CTRL, + OCM_RST_CTRL, + FPGA_RST_CTRL = 0x240 / 4, + A9_CPU_RST_CTRL, + + RS_AWDT_CTRL = 0x24c / 4, + RST_REASON, + + REBOOT_STATUS = 0x258 / 4, + BOOT_MODE, + + APU_CTRL = 0x300 / 4, + WDT_CLK_SEL, + + TZ_DMA_NS = 0x440 / 4, + TZ_DMA_IRQ_NS, + TZ_DMA_PERIPH_NS, + + PSS_IDCODE = 0x530 / 4, + + DDR_URGENT = 0x600 / 4, + DDR_CAL_START = 0x60c / 4, + DDR_REF_START = 0x614 / 4, + DDR_CMD_STA, + DDR_URGENT_SEL, + DDR_DFI_STATUS, + + MIO = 0x700 / 4, +#define MIO_LENGTH 54 + + MIO_LOOPBACK = 0x804 / 4, + MIO_MST_TRI0, + MIO_MST_TRI1, + + SD0_WP_CD_SEL = 0x830 / 4, + SD1_WP_CD_SEL, + + LVL_SHFTR_EN = 0x900 / 4, + OCM_CFG = 0x910 / 4, + + CPU_RAM = 0xa00 / 4, + + IOU = 0xa30 / 4, + + DMAC_RAM = 0xa50 / 4, + + AFI0 = 0xa60 / 4, + AFI1 = AFI0 + 3, + AFI2 = AFI1 + 3, + AFI3 = AFI2 + 3, +#define AFI_LENGTH 3 + + OCM = 0xa90 / 4, + + DEVCI_RAM = 0xaa0 / 4, + + CSG_RAM = 0xab0 / 4, + + GPIOB_CTRL = 0xb00 / 4, + GPIOB_CFG_CMOS18, + GPIOB_CFG_CMOS25, + GPIOB_CFG_CMOS33, + GPIOB_CFG_HSTL = 0xb14 / 4, + GPIOB_DRVR_BIAS_CTRL, + + DDRIOB = 0xb40 / 4, +#define DDRIOB_LENGTH 14 +}; + +#define ZYNQ_SLCR_MMIO_SIZE 0x1000 +#define ZYNQ_SLCR_NUM_REGS (ZYNQ_SLCR_MMIO_SIZE / 4) + +#define TYPE_ZYNQ_SLCR "xilinx,zynq_slcr" +#define ZYNQ_SLCR(obj) OBJECT_CHECK(ZynqSLCRState, (obj), TYPE_ZYNQ_SLCR) + +typedef struct ZynqSLCRState { + SysBusDevice parent_obj; + + MemoryRegion iomem; + + uint32_t regs[ZYNQ_SLCR_NUM_REGS]; +} ZynqSLCRState; + +static void zynq_slcr_reset(DeviceState *d) +{ + ZynqSLCRState *s = ZYNQ_SLCR(d); + int i; + + DB_PRINT("RESET\n"); + + s->regs[LOCKSTA] = 1; + /* 0x100 - 0x11C */ + s->regs[ARM_PLL_CTRL] = 0x0001A008; + s->regs[DDR_PLL_CTRL] = 0x0001A008; + s->regs[IO_PLL_CTRL] = 0x0001A008; + s->regs[PLL_STATUS] = 0x0000003F; + s->regs[ARM_PLL_CFG] = 0x00014000; + s->regs[DDR_PLL_CFG] = 0x00014000; + s->regs[IO_PLL_CFG] = 0x00014000; + + /* 0x120 - 0x16C */ + s->regs[ARM_CLK_CTRL] = 0x1F000400; + s->regs[DDR_CLK_CTRL] = 0x18400003; + s->regs[DCI_CLK_CTRL] = 0x01E03201; + s->regs[APER_CLK_CTRL] = 0x01FFCCCD; + s->regs[USB0_CLK_CTRL] = s->regs[USB1_CLK_CTRL] = 0x00101941; + s->regs[GEM0_RCLK_CTRL] = s->regs[GEM1_RCLK_CTRL] = 0x00000001; + s->regs[GEM0_CLK_CTRL] = s->regs[GEM1_CLK_CTRL] = 0x00003C01; + s->regs[SMC_CLK_CTRL] = 0x00003C01; + s->regs[LQSPI_CLK_CTRL] = 0x00002821; + s->regs[SDIO_CLK_CTRL] = 0x00001E03; + s->regs[UART_CLK_CTRL] = 0x00003F03; + s->regs[SPI_CLK_CTRL] = 0x00003F03; + s->regs[CAN_CLK_CTRL] = 0x00501903; + s->regs[DBG_CLK_CTRL] = 0x00000F03; + s->regs[PCAP_CLK_CTRL] = 0x00000F01; + + /* 0x170 - 0x1AC */ + s->regs[FPGA0_CLK_CTRL] = s->regs[FPGA1_CLK_CTRL] = s->regs[FPGA2_CLK_CTRL] + = s->regs[FPGA3_CLK_CTRL] = 0x00101800; + s->regs[FPGA0_THR_STA] = s->regs[FPGA1_THR_STA] = s->regs[FPGA2_THR_STA] + = s->regs[FPGA3_THR_STA] = 0x00010000; + + /* 0x1B0 - 0x1D8 */ + s->regs[BANDGAP_TRIP] = 0x0000001F; + s->regs[PLL_PREDIVISOR] = 0x00000001; + s->regs[CLK_621_TRUE] = 0x00000001; + + /* 0x200 - 0x25C */ + s->regs[FPGA_RST_CTRL] = 0x01F33F0F; + s->regs[RST_REASON] = 0x00000040; + + s->regs[BOOT_MODE] = 0x00000001; + + /* 0x700 - 0x7D4 */ + for (i = 0; i < 54; i++) { + s->regs[MIO + i] = 0x00001601; + } + for (i = 2; i <= 8; i++) { + s->regs[MIO + i] = 0x00000601; + } + + s->regs[MIO_MST_TRI0] = s->regs[MIO_MST_TRI1] = 0xFFFFFFFF; + + s->regs[CPU_RAM + 0] = s->regs[CPU_RAM + 1] = s->regs[CPU_RAM + 3] + = s->regs[CPU_RAM + 4] = s->regs[CPU_RAM + 7] + = 0x00010101; + s->regs[CPU_RAM + 2] = s->regs[CPU_RAM + 5] = 0x01010101; + s->regs[CPU_RAM + 6] = 0x00000001; + + s->regs[IOU + 0] = s->regs[IOU + 1] = s->regs[IOU + 2] = s->regs[IOU + 3] + = 0x09090909; + s->regs[IOU + 4] = s->regs[IOU + 5] = 0x00090909; + s->regs[IOU + 6] = 0x00000909; + + s->regs[DMAC_RAM] = 0x00000009; + + s->regs[AFI0 + 0] = s->regs[AFI0 + 1] = 0x09090909; + s->regs[AFI1 + 0] = s->regs[AFI1 + 1] = 0x09090909; + s->regs[AFI2 + 0] = s->regs[AFI2 + 1] = 0x09090909; + s->regs[AFI3 + 0] = s->regs[AFI3 + 1] = 0x09090909; + s->regs[AFI0 + 2] = s->regs[AFI1 + 2] = s->regs[AFI2 + 2] + = s->regs[AFI3 + 2] = 0x00000909; + + s->regs[OCM + 0] = 0x01010101; + s->regs[OCM + 1] = s->regs[OCM + 2] = 0x09090909; + + s->regs[DEVCI_RAM] = 0x00000909; + s->regs[CSG_RAM] = 0x00000001; + + s->regs[DDRIOB + 0] = s->regs[DDRIOB + 1] = s->regs[DDRIOB + 2] + = s->regs[DDRIOB + 3] = 0x00000e00; + s->regs[DDRIOB + 4] = s->regs[DDRIOB + 5] = s->regs[DDRIOB + 6] + = 0x00000e00; + s->regs[DDRIOB + 12] = 0x00000021; +} + + +static bool zynq_slcr_check_offset(hwaddr offset, bool rnw) +{ + switch (offset) { + case LOCK: + case UNLOCK: + case DDR_CAL_START: + case DDR_REF_START: + return !rnw; /* Write only */ + case LOCKSTA: + case FPGA0_THR_STA: + case FPGA1_THR_STA: + case FPGA2_THR_STA: + case FPGA3_THR_STA: + case BOOT_MODE: + case PSS_IDCODE: + case DDR_CMD_STA: + case DDR_DFI_STATUS: + case PLL_STATUS: + return rnw;/* read only */ + case SCL: + case ARM_PLL_CTRL ... IO_PLL_CTRL: + case ARM_PLL_CFG ... IO_PLL_CFG: + case ARM_CLK_CTRL ... TOPSW_CLK_CTRL: + case FPGA0_CLK_CTRL ... FPGA0_THR_CNT: + case FPGA1_CLK_CTRL ... FPGA1_THR_CNT: + case FPGA2_CLK_CTRL ... FPGA2_THR_CNT: + case FPGA3_CLK_CTRL ... FPGA3_THR_CNT: + case BANDGAP_TRIP: + case PLL_PREDIVISOR: + case CLK_621_TRUE: + case PSS_RST_CTRL ... A9_CPU_RST_CTRL: + case RS_AWDT_CTRL: + case RST_REASON: + case REBOOT_STATUS: + case APU_CTRL: + case WDT_CLK_SEL: + case TZ_DMA_NS ... TZ_DMA_PERIPH_NS: + case DDR_URGENT: + case DDR_URGENT_SEL: + case MIO ... MIO + MIO_LENGTH - 1: + case MIO_LOOPBACK ... MIO_MST_TRI1: + case SD0_WP_CD_SEL: + case SD1_WP_CD_SEL: + case LVL_SHFTR_EN: + case OCM_CFG: + case CPU_RAM: + case IOU: + case DMAC_RAM: + case AFI0 ... AFI3 + AFI_LENGTH - 1: + case OCM: + case DEVCI_RAM: + case CSG_RAM: + case GPIOB_CTRL ... GPIOB_CFG_CMOS33: + case GPIOB_CFG_HSTL: + case GPIOB_DRVR_BIAS_CTRL: + case DDRIOB ... DDRIOB + DDRIOB_LENGTH - 1: + return true; + default: + return false; + } +} + +static uint64_t zynq_slcr_read(void *opaque, hwaddr offset, + unsigned size) +{ + ZynqSLCRState *s = opaque; + offset /= 4; + uint32_t ret = s->regs[offset]; + + if (!zynq_slcr_check_offset(offset, true)) { + qemu_log_mask(LOG_GUEST_ERROR, "zynq_slcr: Invalid read access to " + " addr %" HWADDR_PRIx "\n", offset * 4); + } + + DB_PRINT("addr: %08" HWADDR_PRIx " data: %08" PRIx32 "\n", offset * 4, ret); + return ret; +} + +static void zynq_slcr_write(void *opaque, hwaddr offset, + uint64_t val, unsigned size) +{ + ZynqSLCRState *s = (ZynqSLCRState *)opaque; + offset /= 4; + + DB_PRINT("addr: %08" HWADDR_PRIx " data: %08" PRIx64 "\n", offset * 4, val); + + if (!zynq_slcr_check_offset(offset, false)) { + qemu_log_mask(LOG_GUEST_ERROR, "zynq_slcr: Invalid write access to " + "addr %" HWADDR_PRIx "\n", offset * 4); + return; + } + + switch (offset) { + case SCL: + s->regs[SCL] = val & 0x1; + return; + case LOCK: + if ((val & 0xFFFF) == XILINX_LOCK_KEY) { + DB_PRINT("XILINX LOCK 0xF8000000 + 0x%x <= 0x%x\n", (int)offset, + (unsigned)val & 0xFFFF); + s->regs[LOCKSTA] = 1; + } else { + DB_PRINT("WRONG XILINX LOCK KEY 0xF8000000 + 0x%x <= 0x%x\n", + (int)offset, (unsigned)val & 0xFFFF); + } + return; + case UNLOCK: + if ((val & 0xFFFF) == XILINX_UNLOCK_KEY) { + DB_PRINT("XILINX UNLOCK 0xF8000000 + 0x%x <= 0x%x\n", (int)offset, + (unsigned)val & 0xFFFF); + s->regs[LOCKSTA] = 0; + } else { + DB_PRINT("WRONG XILINX UNLOCK KEY 0xF8000000 + 0x%x <= 0x%x\n", + (int)offset, (unsigned)val & 0xFFFF); + } + return; + } + + if (s->regs[LOCKSTA]) { + qemu_log_mask(LOG_GUEST_ERROR, + "SCLR registers are locked. Unlock them first\n"); + return; + } + s->regs[offset] = val; + + switch (offset) { + case PSS_RST_CTRL: + if (val & R_PSS_RST_CTRL_SOFT_RST) { + qemu_system_reset_request(); + } + break; + } +} + +static const MemoryRegionOps slcr_ops = { + .read = zynq_slcr_read, + .write = zynq_slcr_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +static void zynq_slcr_init(Object *obj) +{ + ZynqSLCRState *s = ZYNQ_SLCR(obj); + + memory_region_init_io(&s->iomem, obj, &slcr_ops, s, "slcr", + ZYNQ_SLCR_MMIO_SIZE); + sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->iomem); +} + +static const VMStateDescription vmstate_zynq_slcr = { + .name = "zynq_slcr", + .version_id = 2, + .minimum_version_id = 2, + .fields = (VMStateField[]) { + VMSTATE_UINT32_ARRAY(regs, ZynqSLCRState, ZYNQ_SLCR_NUM_REGS), + VMSTATE_END_OF_LIST() + } +}; + +static void zynq_slcr_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->vmsd = &vmstate_zynq_slcr; + dc->reset = zynq_slcr_reset; +} + +static const TypeInfo zynq_slcr_info = { + .class_init = zynq_slcr_class_init, + .name = TYPE_ZYNQ_SLCR, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(ZynqSLCRState), + .instance_init = zynq_slcr_init, +}; + +static void zynq_slcr_register_types(void) +{ + type_register_static(&zynq_slcr_info); +} + +type_init(zynq_slcr_register_types) |
