1 /* 2 * Copyright 2013 Broadcom Corporation. 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <asm/io.h> 9 #include <asm/mach-types.h> 10 #include <mmc.h> 11 #include <asm/kona-common/kona_sdhci.h> 12 #include <asm/kona-common/clk.h> 13 #include <asm/arch/sysmap.h> 14 15 #define SECWATCHDOG_SDOGCR_OFFSET 0x00000000 16 #define SECWATCHDOG_SDOGCR_EN_SHIFT 27 17 #define SECWATCHDOG_SDOGCR_SRSTEN_SHIFT 26 18 #define SECWATCHDOG_SDOGCR_CLKS_SHIFT 20 19 #define SECWATCHDOG_SDOGCR_LD_SHIFT 0 20 21 DECLARE_GLOBAL_DATA_PTR; 22 23 /* 24 * board_init - early hardware init 25 */ 26 int board_init(void) 27 { 28 printf("Relocation Offset is: %08lx\n", gd->reloc_off); 29 30 /* adress of boot parameters */ 31 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; 32 33 clk_init(); 34 35 return 0; 36 } 37 38 /* 39 * misc_init_r - miscellaneous platform dependent initializations 40 */ 41 int misc_init_r(void) 42 { 43 /* Disable watchdog reset - watchdog unused */ 44 writel((0 << SECWATCHDOG_SDOGCR_EN_SHIFT) | 45 (0 << SECWATCHDOG_SDOGCR_SRSTEN_SHIFT) | 46 (4 << SECWATCHDOG_SDOGCR_CLKS_SHIFT) | 47 (0x5a0 << SECWATCHDOG_SDOGCR_LD_SHIFT), 48 (SECWD_BASE_ADDR + SECWATCHDOG_SDOGCR_OFFSET)); 49 50 return 0; 51 } 52 53 /* 54 * dram_init - sets uboots idea of sdram size 55 */ 56 int dram_init(void) 57 { 58 gd->ram_size = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 59 CONFIG_SYS_SDRAM_SIZE); 60 return 0; 61 } 62 63 /* This is called after dram_init() so use get_ram_size result */ 64 void dram_init_banksize(void) 65 { 66 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; 67 gd->bd->bi_dram[0].size = gd->ram_size; 68 } 69 70 #ifdef CONFIG_KONA_SDHCI 71 /* 72 * mmc_init - Initializes mmc 73 */ 74 int board_mmc_init(bd_t *bis) 75 { 76 int ret = 0; 77 78 /* Register eMMC - SDIO2 */ 79 ret = kona_sdhci_init(1, 400000, 0); 80 if (ret) 81 return ret; 82 83 /* Register SD Card - SDIO4 kona_mmc_init assumes 0 based index */ 84 ret = kona_sdhci_init(3, 400000, 0); 85 return ret; 86 } 87 #endif 88