2 * Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
4 * See file CREDITS for list of people who contributed to this
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 #include <asm/arch/imx-regs.h>
26 #include <asm/arch/mx6x_pins.h>
27 #include <asm/arch/iomux-v3.h>
28 #include <asm/errno.h>
31 #include <fsl_esdhc.h>
33 DECLARE_GLOBAL_DATA_PTR;
35 #define UART_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
36 PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
37 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
39 #define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
40 PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \
41 PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
45 gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
50 iomux_v3_cfg_t uart2_pads[] = {
51 MX6Q_PAD_EIM_D26__UART2_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
52 MX6Q_PAD_EIM_D27__UART2_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
55 iomux_v3_cfg_t usdhc3_pads[] = {
56 MX6Q_PAD_SD3_CLK__USDHC3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
57 MX6Q_PAD_SD3_CMD__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
58 MX6Q_PAD_SD3_DAT0__USDHC3_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
59 MX6Q_PAD_SD3_DAT1__USDHC3_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
60 MX6Q_PAD_SD3_DAT2__USDHC3_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
61 MX6Q_PAD_SD3_DAT3__USDHC3_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
62 MX6Q_PAD_SD3_DAT5__GPIO_7_0 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
65 iomux_v3_cfg_t usdhc4_pads[] = {
66 MX6Q_PAD_SD4_CLK__USDHC4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
67 MX6Q_PAD_SD4_CMD__USDHC4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
68 MX6Q_PAD_SD4_DAT0__USDHC4_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
69 MX6Q_PAD_SD4_DAT1__USDHC4_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
70 MX6Q_PAD_SD4_DAT2__USDHC4_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
71 MX6Q_PAD_SD4_DAT3__USDHC4_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
72 MX6Q_PAD_NANDF_D6__GPIO_2_6 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
75 static void setup_iomux_uart(void)
77 imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
80 #ifdef CONFIG_FSL_ESDHC
81 struct fsl_esdhc_cfg usdhc_cfg[2] = {
82 {USDHC3_BASE_ADDR, 1},
83 {USDHC4_BASE_ADDR, 1},
86 int board_mmc_getcd(struct mmc *mmc)
88 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
91 if (cfg->esdhc_base == USDHC3_BASE_ADDR) {
92 gpio_direction_input(192); /*GPIO7_0*/
93 ret = !gpio_get_value(192);
95 gpio_direction_input(38); /*GPIO2_6*/
96 ret = !gpio_get_value(38);
102 int board_mmc_init(bd_t *bis)
107 for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) {
110 imx_iomux_v3_setup_multiple_pads(
111 usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
114 imx_iomux_v3_setup_multiple_pads(
115 usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
118 printf("Warning: you configured more USDHC controllers"
119 "(%d) then supported by the board (%d)\n",
120 index + 1, CONFIG_SYS_FSL_USDHC_NUM);
124 status |= fsl_esdhc_initialize(bis, &usdhc_cfg[index]);
131 int board_early_init_f(void)
140 /* address of boot parameters */
141 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
148 puts("Board: MX6Q-Sabre Lite\n");