diff options
author | Ley Foon Tan <ley.foon.tan@intel.com> | 2017-04-26 02:44:36 +0800 |
---|---|---|
committer | Marek Vasut <marex@denx.de> | 2017-05-18 11:33:17 +0200 |
commit | d1c559af5fb1a513eef1adf37713659d4e4e1968 (patch) | |
tree | 03800cbace202cc91be5802fadbb4f16b9bb71d9 /arch/arm/mach-socfpga/misc.c | |
parent | 4ddd541d6ceabcf4aeb553373f9ab501a44ed90d (diff) |
arm: socfpga: Restructure misc driver
Restructure misc driver in the preparation to support A10.
Move the Gen5 specific code to gen5 file.
Change all uint32_t_to u32.
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Diffstat (limited to 'arch/arm/mach-socfpga/misc.c')
-rw-r--r-- | arch/arm/mach-socfpga/misc.c | 363 |
1 files changed, 15 insertions, 348 deletions
diff --git a/arch/arm/mach-socfpga/misc.c b/arch/arm/mach-socfpga/misc.c index dd6b53b24d..00eff90275 100644 --- a/arch/arm/mach-socfpga/misc.c +++ b/arch/arm/mach-socfpga/misc.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Altera Corporation <www.altera.com> + * Copyright (C) 2012-2017 Altera Corporation <www.altera.com> * * SPDX-License-Identifier: GPL-2.0+ */ @@ -13,6 +13,7 @@ #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> @@ -20,20 +21,21 @@ #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 = +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; + +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) { @@ -72,207 +74,6 @@ 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, - const u32 phymode) -{ - 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, - phymode << physhift); - - /* Release the EMAC controller from reset */ - socfpga_per_reset(reset, 0); -} - -static u32 dwmac_phymode_to_modereg(const char *phymode, u32 *modereg) -{ - if (!phymode) - return -EINVAL; - - if (!strcmp(phymode, "mii") || !strcmp(phymode, "gmii")) { - *modereg = SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_GMII_MII; - return 0; - } - - if (!strcmp(phymode, "rgmii")) { - *modereg = SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RGMII; - return 0; - } - - if (!strcmp(phymode, "rmii")) { - *modereg = SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RMII; - return 0; - } - - return -EINVAL; -} - -static int socfpga_eth_reset(void) -{ - const void *fdt = gd->fdt_blob; - struct fdtdec_phandle_args args; - const char *phy_mode; - u32 phy_modereg; - 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; - } - - phy_mode = fdt_getprop(fdt, node, "phy-mode", NULL); - ret = dwmac_phymode_to_modereg(phy_mode, &phy_modereg); - if (ret) { - debug("GMAC%i: Failed to parse DT 'phy-mode'!\n", i); - continue; - } - - dwmac_deassert_reset(args.args[0], phy_modereg); - } - - return 0; -} -#else -static int socfpga_eth_reset(void) -{ - return 0; -}; -#endif - -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; - - if ((mi != altera_mi) || (lsb != 1)) { - printf("FPGA: Not Altera chip ID\n"); - return -EINVAL; - } - - for (i = 0; i < ARRAY_SIZE(socfpga_fpga_model); i++) - if (pn == socfpga_fpga_model[i].pn) - break; - - if (i == ARRAY_SIZE(socfpga_fpga_model)) { - printf("FPGA: Unknown Altera chip, ID 0x%08x\n", id); - return -EINVAL; - } - - if (print_id) - printf("FPGA: Altera %s, version 0x%01x\n", - socfpga_fpga_model[i].name, version); - return i; -} - -/* - * 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 - -#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 socfpga_eth_reset(); -} -#endif - #if defined(CONFIG_SYS_CONSOLE_IS_IN_ENV) && \ defined(CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE) int overwrite_console(void) @@ -303,15 +104,13 @@ static Altera_desc altera_fpga[] = { }; /* add device descriptor to FPGA device table */ -static void socfpga_fpga_add(void) +void socfpga_fpga_add(void) { int i; fpga_init(); for (i = 0; i < ARRAY_SIZE(altera_fpga); i++) fpga_add(fpga_altera, &altera_fpga[i]); } -#else -static inline void socfpga_fpga_add(void) {} #endif int arch_cpu_init(void) @@ -337,135 +136,3 @@ int arch_cpu_init(void) return 0; } - -/* - * Convert all NIC-301 AMBA slaves from secure to non-secure - */ -static void socfpga_nic301_slave_ns(void) -{ - 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); -} - -static uint32_t iswgrp_handoff[8]; - -int arch_early_init_r(void) -{ - int i; - - /* - * 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 resetting the CPU. - */ - writel(0xae9efebc, &sysmgr_regs->romcodegrp_warmramgrp_enable); - - for (i = 0; i < 8; i++) /* Cache initial SW setting regs */ - iswgrp_handoff[i] = readl(&sysmgr_regs->iswgrp_handoff[i]); - - socfpga_bridges_reset(1); - socfpga_nic301_slave_ns(); - - /* - * 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); - - /* 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(); - -#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 - -#ifdef CONFIG_NAND_DENALI - socfpga_per_reset(SOCFPGA_RESET(NAND), 0); -#endif - - return 0; -} - -static void socfpga_sdram_apply_static_cfg(void) -{ - const uint32_t staticcfg = SOCFPGA_SDR_ADDRESS + 0x505c; - const uint32_t applymask = 0x8; - uint32_t val = readl(staticcfg) | applymask; - - /* - * 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"); -} - -int do_bridge(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) -{ - if (argc != 2) - return CMD_RET_USAGE; - - argv++; - - 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; - } - - return 0; -} - -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" - "" -); |