1 /* 2 * Copyright (C) 2013 Freescale Semiconductor, Inc. 3 * 4 * Author: Fabio Estevam <fabio.estevam@freescale.com> 5 * 6 * SPDX-License-Identifier: GPL-2.0+ 7 */ 8 9 #include <asm/arch/clock.h> 10 #include <asm/arch/iomux.h> 11 #include <asm/arch/imx-regs.h> 12 #include <asm/arch/mx6-pins.h> 13 #include <asm/arch/sys_proto.h> 14 #include <asm/gpio.h> 15 #include <asm/imx-common/iomux-v3.h> 16 #include <asm/io.h> 17 #include <asm/sizes.h> 18 #include <common.h> 19 #include <fsl_esdhc.h> 20 #include <mmc.h> 21 22 DECLARE_GLOBAL_DATA_PTR; 23 24 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ 25 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \ 26 PAD_CTL_SRE_FAST | PAD_CTL_HYS) 27 28 #define USDHC_PAD_CTRL (PAD_CTL_PUS_22K_UP | \ 29 PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \ 30 PAD_CTL_SRE_FAST | PAD_CTL_HYS) 31 32 int dram_init(void) 33 { 34 gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE); 35 36 return 0; 37 } 38 39 static iomux_v3_cfg_t const uart1_pads[] = { 40 MX6_PAD_UART1_TXD__UART1_TXD | MUX_PAD_CTRL(UART_PAD_CTRL), 41 MX6_PAD_UART1_RXD__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL), 42 }; 43 44 static iomux_v3_cfg_t const usdhc2_pads[] = { 45 MX6_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 46 MX6_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 47 MX6_PAD_SD2_DAT0__USDHC2_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 48 MX6_PAD_SD2_DAT1__USDHC2_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 49 MX6_PAD_SD2_DAT2__USDHC2_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 50 MX6_PAD_SD2_DAT3__USDHC2_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 51 }; 52 53 static void setup_iomux_uart(void) 54 { 55 imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads)); 56 } 57 58 static struct fsl_esdhc_cfg usdhc_cfg[1] = { 59 {USDHC2_BASE_ADDR}, 60 }; 61 62 int board_mmc_getcd(struct mmc *mmc) 63 { 64 return 1; /* Assume boot SD always present */ 65 } 66 67 int board_mmc_init(bd_t *bis) 68 { 69 imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads)); 70 71 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK); 72 return fsl_esdhc_initialize(bis, &usdhc_cfg[0]); 73 } 74 75 int board_early_init_f(void) 76 { 77 setup_iomux_uart(); 78 return 0; 79 } 80 81 int board_init(void) 82 { 83 /* address of boot parameters */ 84 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; 85 86 return 0; 87 } 88 89 u32 get_board_rev(void) 90 { 91 return get_cpu_rev(); 92 } 93 94 int checkboard(void) 95 { 96 puts("Board: MX6SLEVK\n"); 97 98 return 0; 99 } 100