1 /* 2 * (C) Copyright 2010 3 * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com. 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <common.h> 9 #include <asm/io.h> 10 #include <asm/arch/hardware.h> 11 #include <asm/arch/spr_misc.h> 12 13 int arch_cpu_init(void) 14 { 15 struct misc_regs *const misc_p = 16 (struct misc_regs *)CONFIG_SPEAR_MISCBASE; 17 u32 periph1_clken, periph_clk_cfg; 18 19 periph1_clken = readl(&misc_p->periph1_clken); 20 21 #if defined(CONFIG_SPEAR3XX) 22 periph1_clken |= MISC_GPT2ENB; 23 #elif defined(CONFIG_SPEAR600) 24 periph1_clken |= MISC_GPT3ENB; 25 #endif 26 27 #if defined(CONFIG_PL011_SERIAL) 28 periph1_clken |= MISC_UART0ENB; 29 30 periph_clk_cfg = readl(&misc_p->periph_clk_cfg); 31 periph_clk_cfg &= ~CONFIG_SPEAR_UARTCLKMSK; 32 periph_clk_cfg |= CONFIG_SPEAR_UART48M; 33 writel(periph_clk_cfg, &misc_p->periph_clk_cfg); 34 #endif 35 #if defined(CONFIG_ETH_DESIGNWARE) 36 periph1_clken |= MISC_ETHENB; 37 #endif 38 #if defined(CONFIG_DW_UDC) 39 periph1_clken |= MISC_USBDENB; 40 #endif 41 #if defined(CONFIG_SYS_I2C_DW) 42 periph1_clken |= MISC_I2CENB; 43 #endif 44 #if defined(CONFIG_ST_SMI) 45 periph1_clken |= MISC_SMIENB; 46 #endif 47 #if defined(CONFIG_NAND_FSMC) 48 periph1_clken |= MISC_FSMCENB; 49 #endif 50 #if defined(CONFIG_USB_EHCI_SPEAR) 51 periph1_clken |= PERIPH_USBH1 | PERIPH_USBH2; 52 #endif 53 54 writel(periph1_clken, &misc_p->periph1_clken); 55 56 return 0; 57 } 58 59 void enable_caches(void) 60 { 61 #ifndef CONFIG_SYS_ICACHE_OFF 62 icache_enable(); 63 #endif 64 #ifndef CONFIG_SYS_DCACHE_OFF 65 dcache_enable(); 66 #endif 67 } 68 69 #ifdef CONFIG_DISPLAY_CPUINFO 70 int print_cpuinfo(void) 71 { 72 #ifdef CONFIG_SPEAR300 73 printf("CPU: SPEAr300\n"); 74 #elif defined(CONFIG_SPEAR310) 75 printf("CPU: SPEAr310\n"); 76 #elif defined(CONFIG_SPEAR320) 77 printf("CPU: SPEAr320\n"); 78 #elif defined(CONFIG_SPEAR600) 79 printf("CPU: SPEAr600\n"); 80 #else 81 #error CPU not supported in spear platform 82 #endif 83 return 0; 84 } 85 #endif 86 87 #if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_NAND_ECC_BCH) && defined(CONFIG_NAND_FSMC) 88 static int do_switch_ecc(cmd_tbl_t *cmdtp, int flag, int argc, 89 char *const argv[]) 90 { 91 if (argc != 2) 92 goto usage; 93 94 if (strncmp(argv[1], "hw", 2) == 0) { 95 /* 1-bit HW ECC */ 96 printf("Switching to 1-bit HW ECC\n"); 97 fsmc_nand_switch_ecc(1); 98 } else if (strncmp(argv[1], "bch4", 2) == 0) { 99 /* 4-bit SW ECC BCH4 */ 100 printf("Switching to 4-bit SW ECC (BCH4)\n"); 101 fsmc_nand_switch_ecc(4); 102 } else { 103 goto usage; 104 } 105 106 return 0; 107 108 usage: 109 printf("Usage: nandecc %s\n", cmdtp->usage); 110 return 1; 111 } 112 113 U_BOOT_CMD( 114 nandecc, 2, 0, do_switch_ecc, 115 "switch NAND ECC calculation algorithm", 116 "hw|bch4 - Switch between NAND hardware 1-bit HW and" 117 " 4-bit SW BCH\n" 118 ); 119 #endif 120