mirror of
https://github.com/brain-hackers/u-boot-brain
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bc5833c49a
Add the initial support for Freescale i.MX6Q Sabre Lite board Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com> Signed-off-by: Jason Liu <jason.hui@linaro.org> CC: Eric Nelson <eric.nelson@boundarydevices.com>
152 lines
4.6 KiB
C
152 lines
4.6 KiB
C
/*
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* Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/arch/imx-regs.h>
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#include <asm/arch/mx6x_pins.h>
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#include <asm/arch/iomux-v3.h>
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#include <asm/errno.h>
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#include <asm/gpio.h>
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#include <mmc.h>
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#include <fsl_esdhc.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define UART_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
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PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
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PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
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#define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
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PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \
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PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
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int dram_init(void)
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{
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gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
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return 0;
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}
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iomux_v3_cfg_t uart2_pads[] = {
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MX6Q_PAD_EIM_D26__UART2_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX6Q_PAD_EIM_D27__UART2_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
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};
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iomux_v3_cfg_t usdhc3_pads[] = {
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MX6Q_PAD_SD3_CLK__USDHC3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD3_CMD__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD3_DAT0__USDHC3_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD3_DAT1__USDHC3_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD3_DAT2__USDHC3_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD3_DAT3__USDHC3_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD3_DAT5__GPIO_7_0 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
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};
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iomux_v3_cfg_t usdhc4_pads[] = {
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MX6Q_PAD_SD4_CLK__USDHC4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD4_CMD__USDHC4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD4_DAT0__USDHC4_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD4_DAT1__USDHC4_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD4_DAT2__USDHC4_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_SD4_DAT3__USDHC4_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6Q_PAD_NANDF_D6__GPIO_2_6 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
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};
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static void setup_iomux_uart(void)
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{
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imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
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}
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#ifdef CONFIG_FSL_ESDHC
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struct fsl_esdhc_cfg usdhc_cfg[2] = {
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{USDHC3_BASE_ADDR, 1},
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{USDHC4_BASE_ADDR, 1},
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};
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int board_mmc_getcd(struct mmc *mmc)
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{
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struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
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int ret;
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if (cfg->esdhc_base == USDHC3_BASE_ADDR) {
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gpio_direction_input(192); /*GPIO7_0*/
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ret = !gpio_get_value(192);
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} else {
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gpio_direction_input(38); /*GPIO2_6*/
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ret = !gpio_get_value(38);
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}
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return ret;
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}
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int board_mmc_init(bd_t *bis)
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{
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s32 status = 0;
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u32 index = 0;
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for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) {
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switch (index) {
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case 0:
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imx_iomux_v3_setup_multiple_pads(
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usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
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break;
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case 1:
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imx_iomux_v3_setup_multiple_pads(
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usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
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break;
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default:
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printf("Warning: you configured more USDHC controllers"
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"(%d) then supported by the board (%d)\n",
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index + 1, CONFIG_SYS_FSL_USDHC_NUM);
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return status;
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}
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status |= fsl_esdhc_initialize(bis, &usdhc_cfg[index]);
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}
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return status;
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}
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#endif
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int board_early_init_f(void)
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{
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setup_iomux_uart();
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return 0;
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}
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int board_init(void)
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{
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/* address of boot parameters */
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gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
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return 0;
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}
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int checkboard(void)
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{
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puts("Board: MX6Q-Sabre Lite\n");
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return 0;
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}
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