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authorJason Liu <jason.hui@linaro.org>2011-11-25 00:18:05 +0000
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2011-12-09 17:30:10 +0100
commit76d7f574498706cfe5e7f4a309bd9b35418a44f4 (patch)
treebeb4236b5bff18480ba0bac5544f926b13225bba /board/freescale/mx6qarm2/mx6qarm2.c
parentc8bfe24fec5aaf87d095efbf8d07f485a486913f (diff)
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i.mx: i.mx6q: add the initial support for i.mx6q ARM2 board
Add the initial support for Freescale i.MX6Q Armadillo2 board Support: MMC boot from slot 0/1, debug UART(UART4), usdhc. There is two MMC slots on the boards: mmc dev 0 -> connect USDHC3 -> the lower slot on the board, mmc dev 1 -> connect USDHC4 -> the upper slot on the board, Signed-off-by: Jason Liu <jason.hui@linaro.org> Cc: Stefano Babic <sbabic@denx.de> Tested-by: Dirk Behme <dirk.behme@de.bosch.com>
Diffstat (limited to 'board/freescale/mx6qarm2/mx6qarm2.c')
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1 files changed, 155 insertions, 0 deletions
diff --git a/board/freescale/mx6qarm2/mx6qarm2.c b/board/freescale/mx6qarm2/mx6qarm2.c
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+++ b/board/freescale/mx6qarm2/mx6qarm2.c
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+/*
+ * Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/mx6x_pins.h>
+#include <asm/arch/iomux-v3.h>
+#include <asm/errno.h>
+#include <asm/gpio.h>
+#include <mmc.h>
+#include <fsl_esdhc.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define UART_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
+ PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
+ PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
+
+#define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
+ PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \
+ PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
+
+int dram_init(void)
+{
+ gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
+
+ return 0;
+}
+
+iomux_v3_cfg_t uart4_pads[] = {
+ MX6Q_PAD_KEY_COL0__UART4_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
+ MX6Q_PAD_KEY_ROW0__UART4_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+iomux_v3_cfg_t usdhc3_pads[] = {
+ MX6Q_PAD_SD3_CLK__USDHC3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6Q_PAD_SD3_CMD__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6Q_PAD_SD3_DAT0__USDHC3_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6Q_PAD_SD3_DAT1__USDHC3_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6Q_PAD_SD3_DAT2__USDHC3_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6Q_PAD_SD3_DAT3__USDHC3_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6Q_PAD_SD3_DAT4__USDHC3_DAT4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6Q_PAD_SD3_DAT5__USDHC3_DAT5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6Q_PAD_SD3_DAT6__USDHC3_DAT6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6Q_PAD_SD3_DAT7__USDHC3_DAT7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6Q_PAD_NANDF_CS0__GPIO_6_11 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
+};
+
+iomux_v3_cfg_t usdhc4_pads[] = {
+ MX6Q_PAD_SD4_CLK__USDHC4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6Q_PAD_SD4_CMD__USDHC4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6Q_PAD_SD4_DAT0__USDHC4_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6Q_PAD_SD4_DAT1__USDHC4_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6Q_PAD_SD4_DAT2__USDHC4_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6Q_PAD_SD4_DAT3__USDHC4_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6Q_PAD_SD4_DAT4__USDHC4_DAT4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6Q_PAD_SD4_DAT5__USDHC4_DAT5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6Q_PAD_SD4_DAT6__USDHC4_DAT6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6Q_PAD_SD4_DAT7__USDHC4_DAT7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+};
+
+static void setup_iomux_uart(void)
+{
+ imx_iomux_v3_setup_multiple_pads(uart4_pads, ARRAY_SIZE(uart4_pads));
+}
+
+#ifdef CONFIG_FSL_ESDHC
+struct fsl_esdhc_cfg usdhc_cfg[2] = {
+ {USDHC3_BASE_ADDR, 1},
+ {USDHC4_BASE_ADDR, 1},
+};
+
+int board_mmc_getcd(u8 *cd, struct mmc *mmc)
+{
+ struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
+
+ if (cfg->esdhc_base == USDHC3_BASE_ADDR) {
+ gpio_direction_input(171); /*GPIO6_11*/
+ *cd = gpio_get_value(171);
+ } else /* Don't have the CD GPIO pin on board */
+ *cd = 0;
+
+ return 0;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+ s32 status = 0;
+ u32 index = 0;
+
+ for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) {
+ switch (index) {
+ case 0:
+ imx_iomux_v3_setup_multiple_pads(
+ usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
+ break;
+ case 1:
+ imx_iomux_v3_setup_multiple_pads(
+ usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
+ break;
+ default:
+ printf("Warning: you configured more USDHC controllers"
+ "(%d) then supported by the board (%d)\n",
+ index + 1, CONFIG_SYS_FSL_USDHC_NUM);
+ return status;
+ }
+
+ status |= fsl_esdhc_initialize(bis, &usdhc_cfg[index]);
+ }
+
+ return status;
+}
+#endif
+
+int board_early_init_f(void)
+{
+ setup_iomux_uart();
+
+ return 0;
+}
+
+int board_init(void)
+{
+ /* address of boot parameters */
+ gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+
+ return 0;
+}
+
+int checkboard(void)
+{
+ puts("Board: MX6Q-Armadillo2\n");
+
+ return 0;
+}