1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * (C) Copyright 2010 4 * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com. 5 */ 6 7 #include <common.h> 8 #include <asm/io.h> 9 #include <asm/arch/hardware.h> 10 #include <asm/arch/spr_misc.h> 11 12 int arch_cpu_init(void) 13 { 14 struct misc_regs *const misc_p = 15 (struct misc_regs *)CONFIG_SPEAR_MISCBASE; 16 u32 periph1_clken, periph_clk_cfg; 17 18 periph1_clken = readl(&misc_p->periph1_clken); 19 20 #if defined(CONFIG_SPEAR3XX) 21 periph1_clken |= MISC_GPT2ENB; 22 #elif defined(CONFIG_SPEAR600) 23 periph1_clken |= MISC_GPT3ENB; 24 #endif 25 26 #if defined(CONFIG_PL011_SERIAL) 27 periph1_clken |= MISC_UART0ENB; 28 29 periph_clk_cfg = readl(&misc_p->periph_clk_cfg); 30 periph_clk_cfg &= ~CONFIG_SPEAR_UARTCLKMSK; 31 periph_clk_cfg |= CONFIG_SPEAR_UART48M; 32 writel(periph_clk_cfg, &misc_p->periph_clk_cfg); 33 #endif 34 #if defined(CONFIG_ETH_DESIGNWARE) 35 periph1_clken |= MISC_ETHENB; 36 #endif 37 #if defined(CONFIG_DW_UDC) 38 periph1_clken |= MISC_USBDENB; 39 #endif 40 #if defined(CONFIG_SYS_I2C_DW) 41 periph1_clken |= MISC_I2CENB; 42 #endif 43 #if defined(CONFIG_ST_SMI) 44 periph1_clken |= MISC_SMIENB; 45 #endif 46 #if defined(CONFIG_NAND_FSMC) 47 periph1_clken |= MISC_FSMCENB; 48 #endif 49 #if defined(CONFIG_USB_EHCI_SPEAR) 50 periph1_clken |= PERIPH_USBH1 | PERIPH_USBH2; 51 #endif 52 #if defined(CONFIG_SPEAR_GPIO) 53 periph1_clken |= MISC_GPIO3ENB | MISC_GPIO4ENB; 54 #endif 55 56 writel(periph1_clken, &misc_p->periph1_clken); 57 58 return 0; 59 } 60 61 #ifdef CONFIG_DISPLAY_CPUINFO 62 int print_cpuinfo(void) 63 { 64 #ifdef CONFIG_SPEAR300 65 printf("CPU: SPEAr300\n"); 66 #elif defined(CONFIG_SPEAR310) 67 printf("CPU: SPEAr310\n"); 68 #elif defined(CONFIG_SPEAR320) 69 printf("CPU: SPEAr320\n"); 70 #elif defined(CONFIG_SPEAR600) 71 printf("CPU: SPEAr600\n"); 72 #else 73 #error CPU not supported in spear platform 74 #endif 75 return 0; 76 } 77 #endif 78 79 #if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_NAND_ECC_BCH) && defined(CONFIG_NAND_FSMC) 80 static int do_switch_ecc(cmd_tbl_t *cmdtp, int flag, int argc, 81 char *const argv[]) 82 { 83 if (argc != 2) 84 goto usage; 85 86 if (strncmp(argv[1], "hw", 2) == 0) { 87 /* 1-bit HW ECC */ 88 printf("Switching to 1-bit HW ECC\n"); 89 fsmc_nand_switch_ecc(1); 90 } else if (strncmp(argv[1], "bch4", 2) == 0) { 91 /* 4-bit SW ECC BCH4 */ 92 printf("Switching to 4-bit SW ECC (BCH4)\n"); 93 fsmc_nand_switch_ecc(4); 94 } else { 95 goto usage; 96 } 97 98 return 0; 99 100 usage: 101 printf("Usage: nandecc %s\n", cmdtp->usage); 102 return 1; 103 } 104 105 U_BOOT_CMD( 106 nandecc, 2, 0, do_switch_ecc, 107 "switch NAND ECC calculation algorithm", 108 "hw|bch4 - Switch between NAND hardware 1-bit HW and" 109 " 4-bit SW BCH\n" 110 ); 111 #endif 112