+// SPDX-License-Identifier: GPL-2.0+
/*
- * Copyright (C) 2012 Altera Corporation <www.altera.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
+ * Copyright (C) 2012-2017 Altera Corporation <www.altera.com>
*/
#include <common.h>
+#include <cpu_func.h>
#include <asm/io.h>
#include <errno.h>
#include <fdtdec.h>
-#include <libfdt.h>
+#include <linux/libfdt.h>
#include <altera.h>
#include <miiphy.h>
#include <netdev.h>
#include <watchdog.h>
+#include <asm/arch/misc.h>
#include <asm/arch/reset_manager.h>
#include <asm/arch/scan_manager.h>
#include <asm/arch/system_manager.h>
-#include <asm/arch/dwmmc.h>
#include <asm/arch/nic301.h>
#include <asm/arch/scu.h>
#include <asm/pl310.h>
-#include <dt-bindings/reset/altr,rst-mgr.h>
-
DECLARE_GLOBAL_DATA_PTR;
-static struct pl310_regs *const pl310 =
+phys_addr_t socfpga_clkmgr_base __section(".data");
+phys_addr_t socfpga_rstmgr_base __section(".data");
+phys_addr_t socfpga_sysmgr_base __section(".data");
+
+#ifdef CONFIG_SYS_L2_PL310
+static const struct pl310_regs *const pl310 =
(struct pl310_regs *)CONFIG_SYS_PL310_BASE;
-static struct socfpga_system_manager *sysmgr_regs =
- (struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
-static struct socfpga_reset_manager *reset_manager_base =
- (struct socfpga_reset_manager *)SOCFPGA_RSTMGR_ADDRESS;
-static struct nic301_registers *nic301_regs =
- (struct nic301_registers *)SOCFPGA_L3REGS_ADDRESS;
-static struct scu_registers *scu_regs =
- (struct scu_registers *)SOCFPGA_MPUSCU_ADDRESS;
+#endif
+
+struct bsel bsel_str[] = {
+ { "rsvd", "Reserved", },
+ { "fpga", "FPGA (HPS2FPGA Bridge)", },
+ { "nand", "NAND Flash (1.8V)", },
+ { "nand", "NAND Flash (3.0V)", },
+ { "sd", "SD/MMC External Transceiver (1.8V)", },
+ { "sd", "SD/MMC Internal Transceiver (3.0V)", },
+ { "qspi", "QSPI Flash (1.8V)", },
+ { "qspi", "QSPI Flash (3.0V)", },
+};
int dram_init(void)
{
- gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
+ if (fdtdec_setup_mem_size_base() != 0)
+ return -EINVAL;
+
return 0;
}
void enable_caches(void)
{
-#ifndef CONFIG_SYS_ICACHE_OFF
+#if !CONFIG_IS_ENABLED(SYS_ICACHE_OFF)
icache_enable();
#endif
-#ifndef CONFIG_SYS_DCACHE_OFF
+#if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
dcache_enable();
#endif
}
+#ifdef CONFIG_SYS_L2_PL310
void v7_outer_cache_enable(void)
{
- /* Disable the L2 cache */
- clrbits_le32(&pl310->pl310_ctrl, L2X0_CTRL_EN);
-
- /* enable BRESP, instruction and data prefetch, full line of zeroes */
- setbits_le32(&pl310->pl310_aux_ctrl,
- L310_AUX_CTRL_DATA_PREFETCH_MASK |
- L310_AUX_CTRL_INST_PREFETCH_MASK |
- L310_SHARED_ATT_OVERRIDE_ENABLE);
+ struct udevice *dev;
- /* Enable the L2 cache */
- setbits_le32(&pl310->pl310_ctrl, L2X0_CTRL_EN);
+ if (uclass_get_device(UCLASS_CACHE, 0, &dev))
+ pr_err("cache controller driver NOT found!\n");
}
void v7_outer_cache_disable(void)
clrbits_le32(&pl310->pl310_ctrl, L2X0_CTRL_EN);
}
-/*
- * DesignWare Ethernet initialization
- */
-#ifdef CONFIG_ETH_DESIGNWARE
-static void dwmac_deassert_reset(const unsigned int of_reset_id)
+void socfpga_pl310_clear(void)
{
- u32 physhift, reset;
-
- if (of_reset_id == EMAC0_RESET) {
- physhift = SYSMGR_EMACGRP_CTRL_PHYSEL0_LSB;
- reset = SOCFPGA_RESET(EMAC0);
- } else if (of_reset_id == EMAC1_RESET) {
- physhift = SYSMGR_EMACGRP_CTRL_PHYSEL1_LSB;
- reset = SOCFPGA_RESET(EMAC1);
- } else {
- printf("GMAC: Invalid reset ID (%i)!\n", of_reset_id);
- return;
- }
-
- /* Clearing emac0 PHY interface select to 0 */
- clrbits_le32(&sysmgr_regs->emacgrp_ctrl,
- SYSMGR_EMACGRP_CTRL_PHYSEL_MASK << physhift);
-
- /* configure to PHY interface select choosed */
- setbits_le32(&sysmgr_regs->emacgrp_ctrl,
- SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RGMII << physhift);
-
- /* Release the EMAC controller from reset */
- socfpga_per_reset(reset, 0);
-}
-
-int cpu_eth_init(bd_t *bis)
-{
- const void *fdt = gd->fdt_blob;
- struct fdtdec_phandle_args args;
- int nodes[2]; /* Max. two GMACs */
- int ret, count;
- int i, node;
-
- /* Put both GMACs into RESET state. */
- socfpga_per_reset(SOCFPGA_RESET(EMAC0), 1);
- socfpga_per_reset(SOCFPGA_RESET(EMAC1), 1);
-
- count = fdtdec_find_aliases_for_id(fdt, "ethernet",
- COMPAT_ALTERA_SOCFPGA_DWMAC,
- nodes, ARRAY_SIZE(nodes));
- for (i = 0; i < count; i++) {
- node = nodes[i];
- if (node <= 0)
- continue;
-
- ret = fdtdec_parse_phandle_with_args(fdt, node, "resets",
- "#reset-cells", 1, 0,
- &args);
- if (ret || (args.args_count != 1)) {
- debug("GMAC%i: Failed to parse DT 'resets'!\n", i);
- continue;
- }
-
- dwmac_deassert_reset(args.args[0]);
- }
-
- return 0;
-}
-#endif
+ u32 mask = 0xff, ena = 0;
-struct {
- const char *mode;
- const char *name;
-} bsel_str[] = {
- { "rsvd", "Reserved", },
- { "fpga", "FPGA (HPS2FPGA Bridge)", },
- { "nand", "NAND Flash (1.8V)", },
- { "nand", "NAND Flash (3.0V)", },
- { "sd", "SD/MMC External Transceiver (1.8V)", },
- { "sd", "SD/MMC Internal Transceiver (3.0V)", },
- { "qspi", "QSPI Flash (1.8V)", },
- { "qspi", "QSPI Flash (3.0V)", },
-};
-
-static const struct {
- const u16 pn;
- const char *name;
- const char *var;
-} const socfpga_fpga_model[] = {
- /* Cyclone V E */
- { 0x2b15, "Cyclone V, E/A2", "cv_e_a2" },
- { 0x2b05, "Cyclone V, E/A4", "cv_e_a4" },
- { 0x2b22, "Cyclone V, E/A5", "cv_e_a5" },
- { 0x2b13, "Cyclone V, E/A7", "cv_e_a7" },
- { 0x2b14, "Cyclone V, E/A9", "cv_e_a9" },
- /* Cyclone V GX/GT */
- { 0x2b01, "Cyclone V, GX/C3", "cv_gx_c3" },
- { 0x2b12, "Cyclone V, GX/C4", "cv_gx_c4" },
- { 0x2b02, "Cyclone V, GX/C5 or GT/D5", "cv_gx_c5" },
- { 0x2b03, "Cyclone V, GX/C7 or GT/D7", "cv_gx_c7" },
- { 0x2b04, "Cyclone V, GX/C9 or GT/D9", "cv_gx_c9" },
- /* Cyclone V SE/SX/ST */
- { 0x2d11, "Cyclone V, SE/A2 or SX/C2", "cv_se_a2" },
- { 0x2d01, "Cyclone V, SE/A4 or SX/C4", "cv_se_a4" },
- { 0x2d12, "Cyclone V, SE/A5 or SX/C5 or ST/D5", "cv_se_a5" },
- { 0x2d02, "Cyclone V, SE/A6 or SX/C6 or ST/D6", "cv_se_a6" },
- /* Arria V */
- { 0x2d03, "Arria V, D5", "av_d5" },
-};
-
-static int socfpga_fpga_id(const bool print_id)
-{
- const u32 altera_mi = 0x6e;
- const u32 id = scan_mgr_get_fpga_id();
-
- const u32 lsb = id & 0x00000001;
- const u32 mi = (id >> 1) & 0x000007ff;
- const u32 pn = (id >> 12) & 0x0000ffff;
- const u32 version = (id >> 28) & 0x0000000f;
- int i;
+ icache_enable();
- if ((mi != altera_mi) || (lsb != 1)) {
- printf("FPGA: Not Altera chip ID\n");
- return -EINVAL;
- }
+ /* Disable the L2 cache */
+ clrbits_le32(&pl310->pl310_ctrl, L2X0_CTRL_EN);
- for (i = 0; i < ARRAY_SIZE(socfpga_fpga_model); i++)
- if (pn == socfpga_fpga_model[i].pn)
- break;
+ writel(0x0, &pl310->pl310_tag_latency_ctrl);
+ writel(0x10, &pl310->pl310_data_latency_ctrl);
- if (i == ARRAY_SIZE(socfpga_fpga_model)) {
- printf("FPGA: Unknown Altera chip, ID 0x%08x\n", id);
- return -EINVAL;
- }
+ /* enable BRESP, instruction and data prefetch, full line of zeroes */
+ setbits_le32(&pl310->pl310_aux_ctrl,
+ L310_AUX_CTRL_DATA_PREFETCH_MASK |
+ L310_AUX_CTRL_INST_PREFETCH_MASK |
+ L310_SHARED_ATT_OVERRIDE_ENABLE);
- if (print_id)
- printf("FPGA: Altera %s, version 0x%01x\n",
- socfpga_fpga_model[i].name, version);
- return i;
-}
+ /* Enable the L2 cache */
+ ena = readl(&pl310->pl310_ctrl);
+ ena |= L2X0_CTRL_EN;
-/*
- * Print CPU information
- */
-#if defined(CONFIG_DISPLAY_CPUINFO)
-int print_cpuinfo(void)
-{
- const u32 bsel = readl(&sysmgr_regs->bootinfo) & 0x7;
- puts("CPU: Altera SoCFPGA Platform\n");
- socfpga_fpga_id(1);
- printf("BOOT: %s\n", bsel_str[bsel].name);
- return 0;
-}
-#endif
+ /*
+ * Invalidate the PL310 L2 cache. Keep the invalidation code
+ * entirely in L1 I-cache to avoid any bus traffic through
+ * the L2.
+ */
+ asm volatile(
+ ".align 5 \n"
+ " b 3f \n"
+ "1: str %1, [%4] \n"
+ " dsb \n"
+ " isb \n"
+ " str %0, [%2] \n"
+ " dsb \n"
+ " isb \n"
+ "2: ldr %0, [%2] \n"
+ " cmp %0, #0 \n"
+ " bne 2b \n"
+ " str %0, [%3] \n"
+ " dsb \n"
+ " isb \n"
+ " b 4f \n"
+ "3: b 1b \n"
+ "4: nop \n"
+ : "+r"(mask), "+r"(ena)
+ : "r"(&pl310->pl310_inv_way),
+ "r"(&pl310->pl310_cache_sync), "r"(&pl310->pl310_ctrl)
+ : "memory", "cc");
-#ifdef CONFIG_ARCH_MISC_INIT
-int arch_misc_init(void)
-{
- const u32 bsel = readl(&sysmgr_regs->bootinfo) & 0x7;
- const int fpga_id = socfpga_fpga_id(0);
- setenv("bootmode", bsel_str[bsel].mode);
- if (fpga_id >= 0)
- setenv("fpgatype", socfpga_fpga_model[fpga_id].var);
- return 0;
+ /* Disable the L2 cache */
+ clrbits_le32(&pl310->pl310_ctrl, L2X0_CTRL_EN);
}
#endif
#endif
#ifdef CONFIG_FPGA
-/*
- * FPGA programming support for SoC FPGA Cyclone V
- */
-static Altera_desc altera_fpga[] = {
- {
- /* Family */
- Altera_SoCFPGA,
- /* Interface type */
- fast_passive_parallel,
- /* No limitation as additional data will be ignored */
- -1,
- /* No device function table */
- NULL,
- /* Base interface address specified in driver */
- NULL,
- /* No cookie implementation */
- 0
- },
-};
-
/* add device descriptor to FPGA device table */
-static void socfpga_fpga_add(void)
+void socfpga_fpga_add(void *fpga_desc)
{
- int i;
fpga_init();
- for (i = 0; i < ARRAY_SIZE(altera_fpga); i++)
- fpga_add(fpga_altera, &altera_fpga[i]);
+ fpga_add(fpga_altera, fpga_desc);
}
-#else
-static inline void socfpga_fpga_add(void) {}
#endif
int arch_cpu_init(void)
{
+ socfpga_get_managers_addr();
+
#ifdef CONFIG_HW_WATCHDOG
/*
* In case the watchdog is enabled, make sure to (re-)configure it
return 0;
}
-/*
- * Convert all NIC-301 AMBA slaves from secure to non-secure
- */
-static void socfpga_nic301_slave_ns(void)
+#ifndef CONFIG_SPL_BUILD
+static int do_bridge(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
- writel(0x1, &nic301_regs->lwhps2fpgaregs);
- writel(0x1, &nic301_regs->hps2fpgaregs);
- writel(0x1, &nic301_regs->acp);
- writel(0x1, &nic301_regs->rom);
- writel(0x1, &nic301_regs->ocram);
- writel(0x1, &nic301_regs->sdrdata);
-}
+ unsigned int mask = ~0;
-static uint32_t iswgrp_handoff[8];
+ if (argc < 2 || argc > 3)
+ return CMD_RET_USAGE;
-int arch_early_init_r(void)
-{
- int i;
+ argv++;
- /*
- * Write magic value into magic register to unlock support for
- * issuing warm reset. The ancient kernel code expects this
- * value to be written into the register by the bootloader, so
- * to support that old code, we write it here instead of in the
- * reset_cpu() function just before reseting the CPU.
- */
- writel(0xae9efebc, &sysmgr_regs->romcodegrp_warmramgrp_enable);
+ if (argc == 3)
+ mask = simple_strtoul(argv[1], NULL, 16);
- for (i = 0; i < 8; i++) /* Cache initial SW setting regs */
- iswgrp_handoff[i] = readl(&sysmgr_regs->iswgrp_handoff[i]);
+ switch (*argv[0]) {
+ case 'e': /* Enable */
+ do_bridge_reset(1, mask);
+ break;
+ case 'd': /* Disable */
+ do_bridge_reset(0, mask);
+ break;
+ default:
+ return CMD_RET_USAGE;
+ }
- socfpga_bridges_reset(1);
- socfpga_nic301_slave_ns();
+ return 0;
+}
- /*
- * Private components security:
- * U-Boot : configure private timer, global timer and cpu component
- * access as non secure for kernel stage (as required by Linux)
- */
- setbits_le32(&scu_regs->sacr, 0xfff);
+U_BOOT_CMD(bridge, 3, 1, do_bridge,
+ "SoCFPGA HPS FPGA bridge control",
+ "enable [mask] - Enable HPS-to-FPGA, FPGA-to-HPS, LWHPS-to-FPGA bridges\n"
+ "bridge disable [mask] - Enable HPS-to-FPGA, FPGA-to-HPS, LWHPS-to-FPGA bridges\n"
+ ""
+);
- /* Configure the L2 controller to make SDRAM start at 0 */
-#ifdef CONFIG_SOCFPGA_VIRTUAL_TARGET
- writel(0x2, &nic301_regs->remap);
-#else
- writel(0x1, &nic301_regs->remap); /* remap.mpuzero */
- writel(0x1, &pl310->pl310_addr_filter_start);
#endif
- /* Add device descriptor to FPGA device table */
- socfpga_fpga_add();
+static int socfpga_get_base_addr(const char *compat, phys_addr_t *base)
+{
+ const void *blob = gd->fdt_blob;
+ struct fdt_resource r;
+ int node;
+ int ret;
-#ifdef CONFIG_DESIGNWARE_SPI
- /* Get Designware SPI controller out of reset */
- socfpga_per_reset(SOCFPGA_RESET(SPIM0), 0);
- socfpga_per_reset(SOCFPGA_RESET(SPIM1), 0);
-#endif
+ node = fdt_node_offset_by_compatible(blob, -1, compat);
+ if (node < 0)
+ return node;
-#ifdef CONFIG_NAND_DENALI
- socfpga_per_reset(SOCFPGA_RESET(NAND), 0);
-#endif
+ if (!fdtdec_get_is_enabled(blob, node))
+ return -ENODEV;
+
+ ret = fdt_get_resource(blob, node, "reg", 0, &r);
+ if (ret)
+ return ret;
+
+ *base = (phys_addr_t)r.start;
return 0;
}
-static void socfpga_sdram_apply_static_cfg(void)
+void socfpga_get_managers_addr(void)
{
- const uint32_t staticcfg = SOCFPGA_SDR_ADDRESS + 0x505c;
- const uint32_t applymask = 0x8;
- uint32_t val = readl(staticcfg) | applymask;
+ int ret;
- /*
- * SDRAM staticcfg register specific:
- * When applying the register setting, the CPU must not access
- * SDRAM. Luckily for us, we can abuse i-cache here to help us
- * circumvent the SDRAM access issue. The idea is to make sure
- * that the code is in one full i-cache line by branching past
- * it and back. Once it is in the i-cache, we execute the core
- * of the code and apply the register settings.
- *
- * The code below uses 7 instructions, while the Cortex-A9 has
- * 32-byte cachelines, thus the limit is 8 instructions total.
- */
- asm volatile(
- ".align 5 \n"
- " b 2f \n"
- "1: str %0, [%1] \n"
- " dsb \n"
- " isb \n"
- " b 3f \n"
- "2: b 1b \n"
- "3: nop \n"
- : : "r"(val), "r"(staticcfg) : "memory", "cc");
-}
+ ret = socfpga_get_base_addr("altr,rst-mgr", &socfpga_rstmgr_base);
+ if (ret)
+ hang();
-int do_bridge(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
-{
- if (argc != 2)
- return CMD_RET_USAGE;
+ ret = socfpga_get_base_addr("altr,sys-mgr", &socfpga_sysmgr_base);
+ if (ret)
+ hang();
- argv++;
+#ifdef CONFIG_TARGET_SOCFPGA_AGILEX
+ ret = socfpga_get_base_addr("intel,agilex-clkmgr",
+ &socfpga_clkmgr_base);
+#else
+ ret = socfpga_get_base_addr("altr,clk-mgr", &socfpga_clkmgr_base);
+#endif
+ if (ret)
+ hang();
+}
- switch (*argv[0]) {
- case 'e': /* Enable */
- writel(iswgrp_handoff[2], &sysmgr_regs->fpgaintfgrp_module);
- socfpga_sdram_apply_static_cfg();
- writel(iswgrp_handoff[3], SOCFPGA_SDR_ADDRESS + 0x5080);
- writel(iswgrp_handoff[0], &reset_manager_base->brg_mod_reset);
- writel(iswgrp_handoff[1], &nic301_regs->remap);
- break;
- case 'd': /* Disable */
- writel(0, &sysmgr_regs->fpgaintfgrp_module);
- writel(0, SOCFPGA_SDR_ADDRESS + 0x5080);
- socfpga_sdram_apply_static_cfg();
- writel(0, &reset_manager_base->brg_mod_reset);
- writel(1, &nic301_regs->remap);
- break;
- default:
- return CMD_RET_USAGE;
- }
+phys_addr_t socfpga_get_rstmgr_addr(void)
+{
+ return socfpga_rstmgr_base;
+}
- return 0;
+phys_addr_t socfpga_get_sysmgr_addr(void)
+{
+ return socfpga_sysmgr_base;
}
-U_BOOT_CMD(
- bridge, 2, 1, do_bridge,
- "SoCFPGA HPS FPGA bridge control",
- "enable - Enable HPS-to-FPGA, FPGA-to-HPS, LWHPS-to-FPGA bridges\n"
- "bridge disable - Enable HPS-to-FPGA, FPGA-to-HPS, LWHPS-to-FPGA bridges\n"
- ""
-);
+phys_addr_t socfpga_get_clkmgr_addr(void)
+{
+ return socfpga_clkmgr_base;
+}
projects / oweals / u-boot.git / blobdiff