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authorFabio Estevam <fabio.estevam@freescale.com>2013-09-26 22:59:25 -0300
committerStefano Babic <sbabic@denx.de>2013-10-17 09:44:20 +0200
commit0c5e26678b18e136c1514bf769a16060ae1b5ff8 (patch)
tree84849ae0f69a1a25500ddb2dfd5a07452e8161a6 /board
parent6654f33c9b520bd4073c7f82a13044e79bc14898 (diff)
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udoo: Add initial support for mx6q udoo board
Add basic support for mx6q udoo board. For further information about Udoo board: http://www.udoo.org/ Tested booting a mainline device tree kernel and a Yocto rootfs from mmc. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Diffstat (limited to 'board')
-rw-r--r--board/udoo/Makefile26
-rw-r--r--board/udoo/udoo.c110
2 files changed, 136 insertions, 0 deletions
diff --git a/board/udoo/Makefile b/board/udoo/Makefile
new file mode 100644
index 0000000..1f0f6c7
--- /dev/null
+++ b/board/udoo/Makefile
@@ -0,0 +1,26 @@
+#
+# (C) Copyright 2013 Freescale Semiconductor, Inc.
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+include $(TOPDIR)/config.mk
+
+LIB = $(obj)lib$(BOARD).o
+
+COBJS := udoo.o
+
+SRCS := $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+
+$(LIB): $(obj).depend $(OBJS)
+ $(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/udoo/udoo.c b/board/udoo/udoo.c
new file mode 100644
index 0000000..e9d6375
--- /dev/null
+++ b/board/udoo/udoo.c
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2013 Freescale Semiconductor, Inc.
+ *
+ * Author: Fabio Estevam <fabio.estevam@freescale.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <asm/arch/clock.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/iomux.h>
+#include <asm/arch/mx6-pins.h>
+#include <asm/errno.h>
+#include <asm/gpio.h>
+#include <asm/imx-common/iomux-v3.h>
+#include <mmc.h>
+#include <fsl_esdhc.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/io.h>
+#include <asm/arch/sys_proto.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)
+
+#define WDT_EN IMX_GPIO_NR(5, 4)
+#define WDT_TRG IMX_GPIO_NR(3, 19)
+
+int dram_init(void)
+{
+ gd->ram_size = (phys_size_t)CONFIG_DDR_MB * 1024 * 1024;
+
+ return 0;
+}
+
+static 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),
+};
+
+static iomux_v3_cfg_t const usdhc3_pads[] = {
+ MX6_PAD_SD3_CLK__USDHC3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_CMD__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DAT0__USDHC3_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DAT1__USDHC3_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DAT2__USDHC3_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DAT3__USDHC3_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const wdog_pads[] = {
+ MX6_PAD_EIM_A24__GPIO_5_4 | MUX_PAD_CTRL(NO_PAD_CTRL),
+ MX6_PAD_EIM_D19__GPIO_3_19,
+};
+
+static void setup_iomux_uart(void)
+{
+ imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
+}
+
+static void setup_iomux_wdog(void)
+{
+ imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));
+ gpio_direction_output(WDT_TRG, 0);
+ gpio_direction_output(WDT_EN, 1);
+}
+
+static struct fsl_esdhc_cfg usdhc_cfg = { USDHC3_BASE_ADDR };
+
+int board_mmc_getcd(struct mmc *mmc)
+{
+ return 1; /* Always present */
+}
+
+int board_mmc_init(bd_t *bis)
+{
+ imx_iomux_v3_setup_multiple_pads(usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
+ usdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
+ usdhc_cfg.max_bus_width = 4;
+
+ return fsl_esdhc_initialize(bis, &usdhc_cfg);
+}
+
+int board_early_init_f(void)
+{
+ setup_iomux_wdog();
+ 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: Udoo\n");
+
+ return 0;
+}