X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=arch%2Farm%2Fmach-socfpga%2Fmisc.c;h=49dadd4c3d8f6321777e3466c40c1fde382f7673;hb=c18b103657d9541305a45a1fb21f979c317fba49;hp=002e340b4751fd137a132c74239f6a5b94867fa9;hpb=6ab00db226296b9512baf00d1dc1728e599e385d;p=platform%2Fkernel%2Fu-boot.git diff --git a/arch/arm/mach-socfpga/misc.c b/arch/arm/mach-socfpga/misc.c index 002e340..49dadd4 100644 --- a/arch/arm/mach-socfpga/misc.c +++ b/arch/arm/mach-socfpga/misc.c @@ -1,166 +1,128 @@ +// SPDX-License-Identifier: GPL-2.0+ /* - * Copyright (C) 2012 Altera Corporation - * - * SPDX-License-Identifier: GPL-2.0+ + * Copyright (C) 2012-2017 Altera Corporation */ #include #include +#include #include -#include +#include #include #include #include #include +#include #include +#include #include -#include #include #include #include -#include - DECLARE_GLOBAL_DATA_PTR; -static struct pl310_regs *const pl310 = +#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 } -/* - * DesignWare Ethernet initialization - */ -#ifdef CONFIG_ETH_DESIGNWARE -static void dwmac_deassert_reset(const unsigned int of_reset_id) +#ifdef CONFIG_SYS_L2_PL310 +void v7_outer_cache_enable(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; - } + struct udevice *dev; - /* 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); + if (uclass_get_device(UCLASS_CACHE, 0, &dev)) + pr_err("cache controller driver NOT found!\n"); } -int cpu_eth_init(bd_t *bis) +void v7_outer_cache_disable(void) { - 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; + /* Disable the L2 cache */ + clrbits_le32(&pl310->pl310_ctrl, L2X0_CTRL_EN); +} - 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; - } +void socfpga_pl310_clear(void) +{ + u32 mask = 0xff, ena = 0; - dwmac_deassert_reset(args.args[0]); - } + icache_enable(); - return 0; -} -#endif + /* Disable the L2 cache */ + clrbits_le32(&pl310->pl310_ctrl, L2X0_CTRL_EN); -#ifdef CONFIG_DWMMC -/* - * Initializes MMC controllers. - * to override, implement board_mmc_init() - */ -int cpu_mmc_init(bd_t *bis) -{ - return socfpga_dwmmc_init(SOCFPGA_SDMMC_ADDRESS, - CONFIG_HPS_SDMMC_BUSWIDTH, 0); -} -#endif + writel(0x0, &pl310->pl310_tag_latency_ctrl); + writel(0x10, &pl310->pl310_data_latency_ctrl); -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)", }, -}; + /* 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); -/* - * 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"); - printf("BOOT: %s\n", bsel_str[bsel].name); - return 0; -} -#endif + /* Enable the L2 cache */ + ena = readl(&pl310->pl310_ctrl); + ena |= L2X0_CTRL_EN; -#ifdef CONFIG_ARCH_MISC_INIT -int arch_misc_init(void) -{ - const u32 bsel = readl(&sysmgr_regs->bootinfo) & 0x7; - setenv("bootmode", bsel_str[bsel].mode); - return 0; + /* + * 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"); + + /* Disable the L2 cache */ + clrbits_le32(&pl310->pl310_ctrl, L2X0_CTRL_EN); } #endif @@ -173,36 +135,12 @@ int overwrite_console(void) #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) @@ -229,118 +167,25 @@ 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 reseting 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 - - return 0; -} - -static void socfpga_sdram_apply_static_cfg(void) +#ifndef CONFIG_SPL_BUILD +static int do_bridge(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { - const uint32_t staticcfg = SOCFPGA_SDR_ADDRESS + 0x505c; - const uint32_t applymask = 0x8; - uint32_t val = readl(staticcfg) | applymask; + unsigned int mask = ~0; - /* - * 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) + if (argc < 2 || argc > 3) return CMD_RET_USAGE; argv++; + if (argc == 3) + mask = simple_strtoul(argv[1], NULL, 16); + 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); + do_bridge_reset(1, mask); 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); + do_bridge_reset(0, mask); break; default: return CMD_RET_USAGE; @@ -349,10 +194,11 @@ int do_bridge(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 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" - "" +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" + "" ); + +#endif