| /* |
| * 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 "qemu/osdep.h" |
| #include "hw/hw.h" |
| #include "qemu/timer.h" |
| #include "hw/sysbus.h" |
| #include "sysemu/sysemu.h" |
| #include "qemu/log.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(SHUTDOWN_CAUSE_GUEST_RESET); |
| } |
| 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) |
