1 /* 2 * Copyright (C) 2010-2011 Freescale Semiconductor, Inc. 3 * Based on mx6qsabrelite.c file 4 * Copyright (C) 2013, Adeneo Embedded <www.adeneo-embedded.com> 5 * Leo Sartre, <lsartre@adeneo-embedded.com> 6 * 7 * SPDX-License-Identifier: GPL-2.0+ 8 */ 9 10 #include <common.h> 11 #include <asm/io.h> 12 #include <asm/arch/clock.h> 13 #include <asm/arch/imx-regs.h> 14 #include <asm/arch/iomux.h> 15 #include <asm/arch/mx6-pins.h> 16 #include <asm/gpio.h> 17 #include <asm/imx-common/iomux-v3.h> 18 #include <asm/imx-common/boot_mode.h> 19 #include <mmc.h> 20 #include <fsl_esdhc.h> 21 22 DECLARE_GLOBAL_DATA_PTR; 23 24 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |\ 25 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) 26 27 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW |\ 28 PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) 29 30 int dram_init(void) 31 { 32 gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE); 33 34 return 0; 35 } 36 37 iomux_v3_cfg_t const uart2_pads[] = { 38 MX6_PAD_EIM_D26__UART2_TXD | MUX_PAD_CTRL(UART_PAD_CTRL), 39 MX6_PAD_EIM_D27__UART2_RXD | MUX_PAD_CTRL(UART_PAD_CTRL), 40 }; 41 42 iomux_v3_cfg_t const usdhc2_pads[] = { 43 MX6_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 44 MX6_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 45 MX6_PAD_SD2_DAT0__USDHC2_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 46 MX6_PAD_SD2_DAT1__USDHC2_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 47 MX6_PAD_SD2_DAT2__USDHC2_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 48 MX6_PAD_SD2_DAT3__USDHC2_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 49 MX6_PAD_GPIO_4__GPIO_1_4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 50 }; 51 52 iomux_v3_cfg_t const usdhc4_pads[] = { 53 MX6_PAD_SD4_CLK__USDHC4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), 54 MX6_PAD_SD4_CMD__USDHC4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), 55 MX6_PAD_SD4_DAT0__USDHC4_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 56 MX6_PAD_SD4_DAT1__USDHC4_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 57 MX6_PAD_SD4_DAT2__USDHC4_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 58 MX6_PAD_SD4_DAT3__USDHC4_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 59 MX6_PAD_SD4_DAT4__USDHC4_DAT4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 60 MX6_PAD_SD4_DAT5__USDHC4_DAT5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 61 MX6_PAD_SD4_DAT6__USDHC4_DAT6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 62 MX6_PAD_SD4_DAT7__USDHC4_DAT7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), 63 MX6_PAD_NANDF_D6__GPIO_2_6 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */ 64 }; 65 66 static void setup_iomux_uart(void) 67 { 68 imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads)); 69 } 70 71 #ifdef CONFIG_FSL_ESDHC 72 struct fsl_esdhc_cfg usdhc_cfg[] = { 73 {USDHC2_BASE_ADDR}, 74 {USDHC4_BASE_ADDR}, 75 }; 76 77 int board_mmc_getcd(struct mmc *mmc) 78 { 79 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; 80 int ret = 0; 81 82 switch (cfg->esdhc_base) { 83 case USDHC2_BASE_ADDR: 84 gpio_direction_input(IMX_GPIO_NR(1, 4)); 85 ret = !gpio_get_value(IMX_GPIO_NR(1, 4)); 86 break; 87 case USDHC4_BASE_ADDR: 88 gpio_direction_input(IMX_GPIO_NR(2, 6)); 89 ret = !gpio_get_value(IMX_GPIO_NR(2, 6)); 90 break; 91 default: 92 printf("Bad USDHC interface\n"); 93 } 94 95 return ret; 96 } 97 98 int board_mmc_init(bd_t *bis) 99 { 100 s32 status = 0; 101 102 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK); 103 usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK); 104 105 imx_iomux_v3_setup_multiple_pads( 106 usdhc2_pads, ARRAY_SIZE(usdhc2_pads)); 107 imx_iomux_v3_setup_multiple_pads( 108 usdhc4_pads, ARRAY_SIZE(usdhc4_pads)); 109 110 status = fsl_esdhc_initialize(bis, &usdhc_cfg[0]) | 111 fsl_esdhc_initialize(bis, &usdhc_cfg[1]); 112 113 return status; 114 } 115 #endif 116 117 int board_early_init_f(void) 118 { 119 setup_iomux_uart(); 120 121 return 0; 122 } 123 124 int board_init(void) 125 { 126 /* address of boot parameters */ 127 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; 128 129 return 0; 130 } 131 132 int checkboard(void) 133 { 134 puts("Board: Conga-QEVAL QMX6 Quad\n"); 135 136 return 0; 137 } 138 139 #ifdef CONFIG_CMD_BMODE 140 static const struct boot_mode board_boot_modes[] = { 141 /* 4 bit bus width */ 142 {"mmc0", MAKE_CFGVAL(0x50, 0x20, 0x00, 0x00)}, 143 {"mmc1", MAKE_CFGVAL(0x50, 0x38, 0x00, 0x00)}, 144 {NULL, 0}, 145 }; 146 #endif 147 148 int misc_init_r(void) 149 { 150 #ifdef CONFIG_CMD_BMODE 151 add_board_boot_modes(board_boot_modes); 152 #endif 153 return 0; 154 } 155