]> git.sur5r.net Git - u-boot/blobdiff - board/xilinx/zynqmp/zynqmp.c
arm64: zynqmp: Setup MMU map for DDR at run time
[u-boot] / board / xilinx / zynqmp / zynqmp.c
index cef1f6a13aee00adc48b0d0781ad5273fa14c8ba..911cd52e0c40c51f8820bccff1ffcdc1b70755e3 100644 (file)
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2014 - 2015 Xilinx, Inc.
  * Michal Simek <michal.simek@xilinx.com>
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
 #include <ahci.h>
 #include <scsi.h>
 #include <malloc.h>
+#include <wdt.h>
 #include <asm/arch/clk.h>
 #include <asm/arch/hardware.h>
 #include <asm/arch/sys_proto.h>
+#include <asm/arch/psu_init_gpl.h>
 #include <asm/io.h>
+#include <dm/uclass.h>
 #include <usb.h>
 #include <dwc3-uboot.h>
 #include <zynqmppl.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
+#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_WDT)
+static struct udevice *watchdog_dev;
+#endif
+
 #if defined(CONFIG_FPGA) && defined(CONFIG_FPGA_ZYNQMPPL) && \
     !defined(CONFIG_SPL_BUILD)
 static xilinx_desc zynqmppl = XILINX_ZYNQMP_DESC;
 
 static const struct {
-       uint32_t id;
+       u32 id;
+       u32 ver;
        char *name;
+       bool evexists;
 } zynqmp_devices[] = {
        {
                .id = 0x10,
                .name = "3eg",
        },
+       {
+               .id = 0x10,
+               .ver = 0x2c,
+               .name = "3cg",
+       },
        {
                .id = 0x11,
                .name = "2eg",
        },
+       {
+               .id = 0x11,
+               .ver = 0x2c,
+               .name = "2cg",
+       },
        {
                .id = 0x20,
                .name = "5ev",
+               .evexists = 1,
+       },
+       {
+               .id = 0x20,
+               .ver = 0x100,
+               .name = "5eg",
+               .evexists = 1,
+       },
+       {
+               .id = 0x20,
+               .ver = 0x12c,
+               .name = "5cg",
        },
        {
                .id = 0x21,
                .name = "4ev",
+               .evexists = 1,
+       },
+       {
+               .id = 0x21,
+               .ver = 0x100,
+               .name = "4eg",
+               .evexists = 1,
+       },
+       {
+               .id = 0x21,
+               .ver = 0x12c,
+               .name = "4cg",
        },
        {
                .id = 0x30,
                .name = "7ev",
+               .evexists = 1,
+       },
+       {
+               .id = 0x30,
+               .ver = 0x100,
+               .name = "7eg",
+               .evexists = 1,
+       },
+       {
+               .id = 0x30,
+               .ver = 0x12c,
+               .name = "7cg",
        },
        {
                .id = 0x38,
                .name = "9eg",
        },
+       {
+               .id = 0x38,
+               .ver = 0x2c,
+               .name = "9cg",
+       },
        {
                .id = 0x39,
                .name = "6eg",
        },
+       {
+               .id = 0x39,
+               .ver = 0x2c,
+               .name = "6cg",
+       },
        {
                .id = 0x40,
                .name = "11eg",
        },
+       { /* For testing purpose only */
+               .id = 0x50,
+               .ver = 0x2c,
+               .name = "15cg",
+       },
        {
                .id = 0x50,
                .name = "15eg",
@@ -74,46 +143,157 @@ static const struct {
                .id = 0x59,
                .name = "17eg",
        },
+       {
+               .id = 0x61,
+               .name = "21dr",
+       },
+       {
+               .id = 0x63,
+               .name = "23dr",
+       },
+       {
+               .id = 0x65,
+               .name = "25dr",
+       },
+       {
+               .id = 0x64,
+               .name = "27dr",
+       },
+       {
+               .id = 0x60,
+               .name = "28dr",
+       },
+       {
+               .id = 0x62,
+               .name = "29dr",
+       },
 };
+#endif
 
-static int chip_id(void)
+int chip_id(unsigned char id)
 {
        struct pt_regs regs;
-       regs.regs[0] = ZYNQMP_SIP_SVC_CSU_DMA_CHIPID;
-       regs.regs[1] = 0;
-       regs.regs[2] = 0;
-       regs.regs[3] = 0;
+       int val = -EINVAL;
 
-       smc_call(&regs);
-
-       /*
-        * SMC returns:
-        * regs[0][31:0]  = status of the operation
-        * regs[0][63:32] = CSU.IDCODE register
-        * regs[1][31:0]  = CSU.version register
-        */
-       regs.regs[0] = upper_32_bits(regs.regs[0]);
-       regs.regs[0] &= ZYNQMP_CSU_IDCODE_DEVICE_CODE_MASK |
-                       ZYNQMP_CSU_IDCODE_SVD_MASK;
-       regs.regs[0] >>= ZYNQMP_CSU_IDCODE_SVD_SHIFT;
+       if (current_el() != 3) {
+               regs.regs[0] = ZYNQMP_SIP_SVC_CSU_DMA_CHIPID;
+               regs.regs[1] = 0;
+               regs.regs[2] = 0;
+               regs.regs[3] = 0;
+
+               smc_call(&regs);
+
+               /*
+                * SMC returns:
+                * regs[0][31:0]  = status of the operation
+                * regs[0][63:32] = CSU.IDCODE register
+                * regs[1][31:0]  = CSU.version register
+                * regs[1][63:32] = CSU.IDCODE2 register
+                */
+               switch (id) {
+               case IDCODE:
+                       regs.regs[0] = upper_32_bits(regs.regs[0]);
+                       regs.regs[0] &= ZYNQMP_CSU_IDCODE_DEVICE_CODE_MASK |
+                                       ZYNQMP_CSU_IDCODE_SVD_MASK;
+                       regs.regs[0] >>= ZYNQMP_CSU_IDCODE_SVD_SHIFT;
+                       val = regs.regs[0];
+                       break;
+               case VERSION:
+                       regs.regs[1] = lower_32_bits(regs.regs[1]);
+                       regs.regs[1] &= ZYNQMP_CSU_SILICON_VER_MASK;
+                       val = regs.regs[1];
+                       break;
+               case IDCODE2:
+                       regs.regs[1] = lower_32_bits(regs.regs[1]);
+                       regs.regs[1] >>= ZYNQMP_CSU_VERSION_EMPTY_SHIFT;
+                       val = regs.regs[1];
+                       break;
+               default:
+                       printf("%s, Invalid Req:0x%x\n", __func__, id);
+               }
+       } else {
+               switch (id) {
+               case IDCODE:
+                       val = readl(ZYNQMP_CSU_IDCODE_ADDR);
+                       val &= ZYNQMP_CSU_IDCODE_DEVICE_CODE_MASK |
+                              ZYNQMP_CSU_IDCODE_SVD_MASK;
+                       val >>= ZYNQMP_CSU_IDCODE_SVD_SHIFT;
+                       break;
+               case VERSION:
+                       val = readl(ZYNQMP_CSU_VER_ADDR);
+                       val &= ZYNQMP_CSU_SILICON_VER_MASK;
+                       break;
+               default:
+                       printf("%s, Invalid Req:0x%x\n", __func__, id);
+               }
+       }
 
-       return regs.regs[0];
+       return val;
 }
 
+#define ZYNQMP_VERSION_SIZE            9
+#define ZYNQMP_PL_STATUS_BIT           9
+#define ZYNQMP_PL_STATUS_MASK          BIT(ZYNQMP_PL_STATUS_BIT)
+#define ZYNQMP_CSU_VERSION_MASK                ~(ZYNQMP_PL_STATUS_MASK)
+
+#if defined(CONFIG_FPGA) && defined(CONFIG_FPGA_ZYNQMPPL) && \
+       !defined(CONFIG_SPL_BUILD)
 static char *zynqmp_get_silicon_idcode_name(void)
 {
-       uint32_t i, id;
+       u32 i, id, ver;
+       char *buf;
+       static char name[ZYNQMP_VERSION_SIZE];
+
+       id = chip_id(IDCODE);
+       ver = chip_id(IDCODE2);
 
-       id = chip_id();
        for (i = 0; i < ARRAY_SIZE(zynqmp_devices); i++) {
-               if (zynqmp_devices[i].id == id)
-                       return zynqmp_devices[i].name;
+               if ((zynqmp_devices[i].id == id) &&
+                   (zynqmp_devices[i].ver == (ver &
+                   ZYNQMP_CSU_VERSION_MASK))) {
+                       strncat(name, "zu", 2);
+                       strncat(name, zynqmp_devices[i].name,
+                               ZYNQMP_VERSION_SIZE - 3);
+                       break;
+               }
        }
-       return "unknown";
+
+       if (i >= ARRAY_SIZE(zynqmp_devices))
+               return "unknown";
+
+       if (!zynqmp_devices[i].evexists)
+               return name;
+
+       if (ver & ZYNQMP_PL_STATUS_MASK)
+               return name;
+
+       if (strstr(name, "eg") || strstr(name, "ev")) {
+               buf = strstr(name, "e");
+               *buf = '\0';
+       }
+
+       return name;
 }
 #endif
 
-#define ZYNQMP_VERSION_SIZE    9
+int board_early_init_f(void)
+{
+       int ret = 0;
+#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_CLK_ZYNQMP)
+       zynqmp_pmufw_version();
+#endif
+
+#if defined(CONFIG_ZYNQMP_PSU_INIT_ENABLED)
+       ret = psu_init();
+#endif
+
+#if defined(CONFIG_WDT) && !defined(CONFIG_SPL_BUILD)
+       /* bss is not cleared at time when watchdog_reset() is called */
+       watchdog_dev = NULL;
+#endif
+
+       return ret;
+}
 
 int board_init(void)
 {
@@ -123,26 +303,58 @@ int board_init(void)
     !defined(CONFIG_SPL_BUILD) || (defined(CONFIG_SPL_FPGA_SUPPORT) && \
     defined(CONFIG_SPL_BUILD))
        if (current_el() != 3) {
-               static char version[ZYNQMP_VERSION_SIZE];
-
-               strncat(version, "xczu", ZYNQMP_VERSION_SIZE);
-               zynqmppl.name = strncat(version,
-                                       zynqmp_get_silicon_idcode_name(),
-                                       ZYNQMP_VERSION_SIZE);
+               zynqmppl.name = zynqmp_get_silicon_idcode_name();
                printf("Chip ID:\t%s\n", zynqmppl.name);
                fpga_init();
                fpga_add(fpga_xilinx, &zynqmppl);
        }
 #endif
 
+#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_WDT)
+       if (uclass_get_device(UCLASS_WDT, 0, &watchdog_dev)) {
+               puts("Watchdog: Not found!\n");
+       } else {
+               wdt_start(watchdog_dev, 0, 0);
+               puts("Watchdog: Started\n");
+       }
+#endif
+
        return 0;
 }
 
+#ifdef CONFIG_WATCHDOG
+/* Called by macro WATCHDOG_RESET */
+void watchdog_reset(void)
+{
+# if !defined(CONFIG_SPL_BUILD)
+       static ulong next_reset;
+       ulong now;
+
+       if (!watchdog_dev)
+               return;
+
+       now = timer_get_us();
+
+       /* Do not reset the watchdog too often */
+       if (now > next_reset) {
+               wdt_reset(watchdog_dev);
+               next_reset = now + 1000;
+       }
+# endif
+}
+#endif
+
 int board_early_init_r(void)
 {
        u32 val;
 
-       if (current_el() == 3) {
+       if (current_el() != 3)
+               return 0;
+
+       val = readl(&crlapb_base->timestamp_ref_ctrl);
+       val &= ZYNQMP_CRL_APB_TIMESTAMP_REF_CTRL_CLKACT;
+
+       if (!val) {
                val = readl(&crlapb_base->timestamp_ref_ctrl);
                val |= ZYNQMP_CRL_APB_TIMESTAMP_REF_CTRL_CLKACT;
                writel(val, &crlapb_base->timestamp_ref_ctrl);
@@ -154,12 +366,6 @@ int board_early_init_r(void)
                writel(ZYNQMP_IOU_SCNTR_COUNTER_CONTROL_REGISTER_EN,
                       &iou_scntr_secure->counter_control_register);
        }
-       /* Program freq register in System counter and enable system counter */
-       writel(gd->cpu_clk, &iou_scntr->base_frequency_id_register);
-       writel(ZYNQMP_IOU_SCNTR_COUNTER_CONTROL_REGISTER_HDBG |
-              ZYNQMP_IOU_SCNTR_COUNTER_CONTROL_REGISTER_EN,
-              &iou_scntr->counter_control_register);
-
        return 0;
 }
 
@@ -179,129 +385,61 @@ int zynq_board_read_rom_ethaddr(unsigned char *ethaddr)
        return 0;
 }
 
-#if !defined(CONFIG_SYS_SDRAM_BASE) && !defined(CONFIG_SYS_SDRAM_SIZE)
-/*
- * fdt_get_reg - Fill buffer by information from DT
- */
-static phys_size_t fdt_get_reg(const void *fdt, int nodeoffset, void *buf,
-                              const u32 *cell, int n)
+unsigned long do_go_exec(ulong (*entry)(int, char * const []), int argc,
+                        char * const argv[])
 {
-       int i = 0, b, banks;
-       int parent_offset = fdt_parent_offset(fdt, nodeoffset);
-       int address_cells = fdt_address_cells(fdt, parent_offset);
-       int size_cells = fdt_size_cells(fdt, parent_offset);
-       char *p = buf;
-       u64 val;
-       u64 vals;
-
-       debug("%s: addr_cells=%x, size_cell=%x, buf=%p, cell=%p\n",
-             __func__, address_cells, size_cells, buf, cell);
-
-       /* Check memory bank setup */
-       banks = n % (address_cells + size_cells);
-       if (banks)
-               panic("Incorrect memory setup cells=%d, ac=%d, sc=%d\n",
-                     n, address_cells, size_cells);
-
-       banks = n / (address_cells + size_cells);
-
-       for (b = 0; b < banks; b++) {
-               debug("%s: Bank #%d:\n", __func__, b);
-               if (address_cells == 2) {
-                       val = cell[i + 1];
-                       val <<= 32;
-                       val |= cell[i];
-                       val = fdt64_to_cpu(val);
-                       debug("%s: addr64=%llx, ptr=%p, cell=%p\n",
-                             __func__, val, p, &cell[i]);
-                       *(phys_addr_t *)p = val;
-               } else {
-                       debug("%s: addr32=%x, ptr=%p\n",
-                             __func__, fdt32_to_cpu(cell[i]), p);
-                       *(phys_addr_t *)p = fdt32_to_cpu(cell[i]);
-               }
-               p += sizeof(phys_addr_t);
-               i += address_cells;
-
-               debug("%s: pa=%p, i=%x, size=%zu\n", __func__, p, i,
-                     sizeof(phys_addr_t));
-
-               if (size_cells == 2) {
-                       vals = cell[i + 1];
-                       vals <<= 32;
-                       vals |= cell[i];
-                       vals = fdt64_to_cpu(vals);
-
-                       debug("%s: size64=%llx, ptr=%p, cell=%p\n",
-                             __func__, vals, p, &cell[i]);
-                       *(phys_size_t *)p = vals;
-               } else {
-                       debug("%s: size32=%x, ptr=%p\n",
-                             __func__, fdt32_to_cpu(cell[i]), p);
-                       *(phys_size_t *)p = fdt32_to_cpu(cell[i]);
-               }
-               p += sizeof(phys_size_t);
-               i += size_cells;
-
-               debug("%s: ps=%p, i=%x, size=%zu\n",
-                     __func__, p, i, sizeof(phys_size_t));
+       int ret = 0;
+
+       if (current_el() > 1) {
+               smp_kick_all_cpus();
+               dcache_disable();
+               armv8_switch_to_el1(0x0, 0, 0, 0, (unsigned long)entry,
+                                   ES_TO_AARCH64);
+       } else {
+               printf("FAIL: current EL is not above EL1\n");
+               ret = EINVAL;
        }
-
-       /* Return the first address size */
-       return *(phys_size_t *)((char *)buf + sizeof(phys_addr_t));
+       return ret;
 }
 
-#define FDT_REG_SIZE  sizeof(u32)
-/* Temp location for sharing data for storing */
-/* Up to 64-bit address + 64-bit size */
-static u8 tmp[CONFIG_NR_DRAM_BANKS * 16];
-
-void dram_init_banksize(void)
+#if !defined(CONFIG_SYS_SDRAM_BASE) && !defined(CONFIG_SYS_SDRAM_SIZE)
+int dram_init_banksize(void)
 {
-       int bank;
+       int ret;
 
-       memcpy(&gd->bd->bi_dram[0], &tmp, sizeof(tmp));
+       ret = fdtdec_setup_memory_banksize();
+       if (ret)
+               return ret;
 
-       for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
-               debug("Bank #%d: start %llx\n", bank,
-                     (unsigned long long)gd->bd->bi_dram[bank].start);
-               debug("Bank #%d: size %llx\n", bank,
-                     (unsigned long long)gd->bd->bi_dram[bank].size);
-       }
+       mem_map_fill();
+
+       return 0;
 }
 
 int dram_init(void)
 {
-       int node, len;
-       const void *blob = gd->fdt_blob;
-       const u32 *cell;
-
-       memset(&tmp, 0, sizeof(tmp));
-
-       /* find or create "/memory" node. */
-       node = fdt_subnode_offset(blob, 0, "memory");
-       if (node < 0) {
-               printf("%s: Can't get memory node\n", __func__);
-               return node;
-       }
-
-       /* Get pointer to cells and lenght of it */
-       cell = fdt_getprop(blob, node, "reg", &len);
-       if (!cell) {
-               printf("%s: Can't get reg property\n", __func__);
-               return -1;
-       }
+       if (fdtdec_setup_memory_size() != 0)
+               return -EINVAL;
 
-       gd->ram_size = fdt_get_reg(blob, node, &tmp, cell, len / FDT_REG_SIZE);
+       return 0;
+}
+#else
+int dram_init_banksize(void)
+{
+#if defined(CONFIG_NR_DRAM_BANKS)
+       gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
+       gd->bd->bi_dram[0].size = get_effective_memsize();
+#endif
 
-       debug("%s: Initial DRAM size %llx\n", __func__, (u64)gd->ram_size);
+       mem_map_fill();
 
        return 0;
 }
-#else
+
 int dram_init(void)
 {
-       gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
+       gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
+                                   CONFIG_SYS_SDRAM_SIZE);
 
        return 0;
 }
@@ -311,30 +449,24 @@ void reset_cpu(ulong addr)
 {
 }
 
-#ifdef CONFIG_SCSI_AHCI_PLAT
-void scsi_init(void)
-{
-#if defined(CONFIG_SATA_CEVA)
-       init_sata(0);
-#endif
-       ahci_init((void __iomem *)ZYNQMP_SATA_BASEADDR);
-       scsi_scan(1);
-}
-#endif
-
 int board_late_init(void)
 {
        u32 reg = 0;
        u8 bootmode;
        const char *mode;
        char *new_targets;
+       char *env_targets;
+       int ret;
 
        if (!(gd->flags & GD_FLG_ENV_DEFAULT)) {
                debug("Saved variables - Skipping\n");
                return 0;
        }
 
-       reg = readl(&crlapb_base->boot_mode);
+       ret = zynqmp_mmio_read((ulong)&crlapb_base->boot_mode, &reg);
+       if (ret)
+               return -EINVAL;
+
        if (reg >> BOOT_MODE_ALT_SHIFT)
                reg >>= BOOT_MODE_ALT_SHIFT;
 
@@ -345,23 +477,28 @@ int board_late_init(void)
        case USB_MODE:
                puts("USB_MODE\n");
                mode = "usb";
+               env_set("modeboot", "usb_dfu_spl");
                break;
        case JTAG_MODE:
                puts("JTAG_MODE\n");
                mode = "pxe dhcp";
+               env_set("modeboot", "jtagboot");
                break;
        case QSPI_MODE_24BIT:
        case QSPI_MODE_32BIT:
                mode = "qspi0";
                puts("QSPI_MODE\n");
+               env_set("modeboot", "qspiboot");
                break;
        case EMMC_MODE:
                puts("EMMC_MODE\n");
                mode = "mmc0";
+               env_set("modeboot", "emmcboot");
                break;
        case SD_MODE:
                puts("SD_MODE\n");
                mode = "mmc0";
+               env_set("modeboot", "sdboot");
                break;
        case SD1_LSHFT_MODE:
                puts("LVL_SHFT_");
@@ -370,13 +507,16 @@ int board_late_init(void)
                puts("SD_MODE1\n");
 #if defined(CONFIG_ZYNQ_SDHCI0) && defined(CONFIG_ZYNQ_SDHCI1)
                mode = "mmc1";
+               env_set("sdbootdev", "1");
 #else
                mode = "mmc0";
 #endif
+               env_set("modeboot", "sdboot");
                break;
        case NAND_MODE:
                puts("NAND_MODE\n");
                mode = "nand0";
+               env_set("modeboot", "nandboot");
                break;
        default:
                mode = "";
@@ -388,11 +528,17 @@ int board_late_init(void)
         * One terminating char + one byte for space between mode
         * and default boot_targets
         */
-       new_targets = calloc(1, strlen(mode) +
-                               strlen(getenv("boot_targets")) + 2);
+       env_targets = env_get("boot_targets");
+       if (env_targets) {
+               new_targets = calloc(1, strlen(mode) +
+                                    strlen(env_targets) + 2);
+               sprintf(new_targets, "%s %s", mode, env_targets);
+       } else {
+               new_targets = calloc(1, strlen(mode) + 2);
+               sprintf(new_targets, "%s", mode);
+       }
 
-       sprintf(new_targets, "%s %s", mode, getenv("boot_targets"));
-       setenv("boot_targets", new_targets);
+       env_set("boot_targets", new_targets);
 
        return 0;
 }