| /* |
| * (C) Copyright 2010 |
| * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com. |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| #include <common.h> |
| #include <asm/io.h> |
| #include <asm/arch/hardware.h> |
| #include <asm/arch/spr_misc.h> |
| |
| int arch_cpu_init(void) |
| { |
| struct misc_regs *const misc_p = |
| (struct misc_regs *)CONFIG_SPEAR_MISCBASE; |
| u32 periph1_clken, periph_clk_cfg; |
| |
| periph1_clken = readl(&misc_p->periph1_clken); |
| |
| #if defined(CONFIG_SPEAR3XX) |
| periph1_clken |= MISC_GPT2ENB; |
| #elif defined(CONFIG_SPEAR600) |
| periph1_clken |= MISC_GPT3ENB; |
| #endif |
| |
| #if defined(CONFIG_PL011_SERIAL) |
| periph1_clken |= MISC_UART0ENB; |
| |
| periph_clk_cfg = readl(&misc_p->periph_clk_cfg); |
| periph_clk_cfg &= ~CONFIG_SPEAR_UARTCLKMSK; |
| periph_clk_cfg |= CONFIG_SPEAR_UART48M; |
| writel(periph_clk_cfg, &misc_p->periph_clk_cfg); |
| #endif |
| #if defined(CONFIG_ETH_DESIGNWARE) |
| periph1_clken |= MISC_ETHENB; |
| #endif |
| #if defined(CONFIG_DW_UDC) |
| periph1_clken |= MISC_USBDENB; |
| #endif |
| #if defined(CONFIG_SYS_I2C_DW) |
| periph1_clken |= MISC_I2CENB; |
| #endif |
| #if defined(CONFIG_ST_SMI) |
| periph1_clken |= MISC_SMIENB; |
| #endif |
| #if defined(CONFIG_NAND_FSMC) |
| periph1_clken |= MISC_FSMCENB; |
| #endif |
| #if defined(CONFIG_USB_EHCI_SPEAR) |
| periph1_clken |= PERIPH_USBH1 | PERIPH_USBH2; |
| #endif |
| |
| writel(periph1_clken, &misc_p->periph1_clken); |
| |
| return 0; |
| } |
| |
| void enable_caches(void) |
| { |
| #ifndef CONFIG_SYS_ICACHE_OFF |
| icache_enable(); |
| #endif |
| #ifndef CONFIG_SYS_DCACHE_OFF |
| dcache_enable(); |
| #endif |
| } |
| |
| #ifdef CONFIG_DISPLAY_CPUINFO |
| int print_cpuinfo(void) |
| { |
| #ifdef CONFIG_SPEAR300 |
| printf("CPU: SPEAr300\n"); |
| #elif defined(CONFIG_SPEAR310) |
| printf("CPU: SPEAr310\n"); |
| #elif defined(CONFIG_SPEAR320) |
| printf("CPU: SPEAr320\n"); |
| #elif defined(CONFIG_SPEAR600) |
| printf("CPU: SPEAr600\n"); |
| #else |
| #error CPU not supported in spear platform |
| #endif |
| return 0; |
| } |
| #endif |
| |
| #if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_NAND_ECC_BCH) |
| static int do_switch_ecc(cmd_tbl_t *cmdtp, int flag, int argc, |
| char *const argv[]) |
| { |
| if (argc != 2) |
| goto usage; |
| |
| if (strncmp(argv[1], "hw", 2) == 0) { |
| /* 1-bit HW ECC */ |
| printf("Switching to 1-bit HW ECC\n"); |
| fsmc_nand_switch_ecc(1); |
| } else if (strncmp(argv[1], "bch4", 2) == 0) { |
| /* 4-bit SW ECC BCH4 */ |
| printf("Switching to 4-bit SW ECC (BCH4)\n"); |
| fsmc_nand_switch_ecc(4); |
| } else { |
| goto usage; |
| } |
| |
| return 0; |
| |
| usage: |
| printf("Usage: nandecc %s\n", cmdtp->usage); |
| return 1; |
| } |
| |
| U_BOOT_CMD( |
| nandecc, 2, 0, do_switch_ecc, |
| "switch NAND ECC calculation algorithm", |
| "hw|bch4 - Switch between NAND hardware 1-bit HW and" |
| " 4-bit SW BCH\n" |
| ); |
| #endif |