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authorSARTRE Leo <lsartre@adeneo-embedded.com>2013-06-03 23:30:36 +0000
committerStefano Babic <sbabic@denx.de>2013-06-04 12:08:46 +0200
commit9b75bad0b926b018c73348249771d45b039fa920 (patch)
tree1b37b30d1092a0ecb79c50973733185971e4276e /board/congatec/cgtqmx6eval/cgtqmx6eval.c
parenta7efb026361bff4f352db8778d82b9a3a30dc27f (diff)
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Add support for Congatec Conga-QEVAl board
Add minimal support (only boot from mmc device) for the Congatec Conga-QEVAl Evaluation Carrier Board with conga-Qmx6q (i.MX6 Quad processor) module. Signed-off-by: Leo Sartre <lsartre@adeneo-embedded.com> Acked-by: Stefano Babic <sbabic@denx.de> Acked-by: Otavio Salvador <otavio@ossystems.com.br>
Diffstat (limited to 'board/congatec/cgtqmx6eval/cgtqmx6eval.c')
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1 files changed, 167 insertions, 0 deletions
diff --git a/board/congatec/cgtqmx6eval/cgtqmx6eval.c b/board/congatec/cgtqmx6eval/cgtqmx6eval.c
new file mode 100644
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--- /dev/null
+++ b/board/congatec/cgtqmx6eval/cgtqmx6eval.c
@@ -0,0 +1,167 @@
+/*
+ * Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
+ * Based on mx6qsabrelite.c file
+ * Copyright (C) 2013, Adeneo Embedded <www.adeneo-embedded.com>
+ * Leo Sartre, <lsartre@adeneo-embedded.com>
+ *
+ * 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/clock.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/iomux.h>
+#include <asm/arch/mx6-pins.h>
+#include <asm/gpio.h>
+#include <asm/imx-common/iomux-v3.h>
+#include <asm/imx-common/boot_mode.h>
+#include <mmc.h>
+#include <fsl_esdhc.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define UART_PAD_CTRL (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_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 const uart2_pads[] = {
+ MX6_PAD_EIM_D26__UART2_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
+ MX6_PAD_EIM_D27__UART2_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+iomux_v3_cfg_t const usdhc2_pads[] = {
+ MX6_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD2_DAT0__USDHC2_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD2_DAT1__USDHC2_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD2_DAT2__USDHC2_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD2_DAT3__USDHC2_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_GPIO_4__GPIO_1_4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+};
+
+iomux_v3_cfg_t const usdhc4_pads[] = {
+ MX6_PAD_SD4_CLK__USDHC4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_CMD__USDHC4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT0__USDHC4_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT1__USDHC4_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT2__USDHC4_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT3__USDHC4_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT4__USDHC4_DAT4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT5__USDHC4_DAT5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT6__USDHC4_DAT6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT7__USDHC4_DAT7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_NANDF_D6__GPIO_2_6 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
+};
+
+static void setup_iomux_uart(void)
+{
+ imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
+}
+
+#ifdef CONFIG_FSL_ESDHC
+struct fsl_esdhc_cfg usdhc_cfg[] = {
+ {USDHC2_BASE_ADDR},
+ {USDHC4_BASE_ADDR},
+};
+
+int board_mmc_getcd(struct mmc *mmc)
+{
+ struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
+ int ret = 0;
+
+ switch (cfg->esdhc_base) {
+ case USDHC2_BASE_ADDR:
+ gpio_direction_input(IMX_GPIO_NR(1, 4));
+ ret = !gpio_get_value(IMX_GPIO_NR(1, 4));
+ break;
+ case USDHC4_BASE_ADDR:
+ gpio_direction_input(IMX_GPIO_NR(2, 6));
+ ret = !gpio_get_value(IMX_GPIO_NR(2, 6));
+ break;
+ default:
+ printf("Bad USDHC interface\n");
+ }
+
+ return ret;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+ s32 status = 0;
+
+ usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
+ usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
+
+ imx_iomux_v3_setup_multiple_pads(
+ usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
+ imx_iomux_v3_setup_multiple_pads(
+ usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
+
+ status = fsl_esdhc_initialize(bis, &usdhc_cfg[0]) |
+ fsl_esdhc_initialize(bis, &usdhc_cfg[1]);
+
+ 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: Conga-QEVAL QMX6 Quad\n");
+
+ return 0;
+}
+
+#ifdef CONFIG_CMD_BMODE
+static const struct boot_mode board_boot_modes[] = {
+ /* 4 bit bus width */
+ {"mmc0", MAKE_CFGVAL(0x50, 0x20, 0x00, 0x00)},
+ {"mmc1", MAKE_CFGVAL(0x50, 0x38, 0x00, 0x00)},
+ {NULL, 0},
+};
+#endif
+
+int misc_init_r(void)
+{
+#ifdef CONFIG_CMD_BMODE
+ add_board_boot_modes(board_boot_modes);
+#endif
+ return 0;
+}