[U-Boot] [PATCH] udoo: Add initial support for mx6q udoo board

[Fabio Estevam <festevam@gmail.com>]

From: Fabio Estevam <fabio.estevam@freescale.com>

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>
---
 board/udoo/Makefile    |  26 +++++++
 board/udoo/udoo.c      | 110 ++++++++++++++++++++++++++
 boards.cfg             |   1 +
 include/configs/udoo.h | 206 +++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 343 insertions(+)
 create mode 100644 board/udoo/Makefile
 create mode 100644 board/udoo/udoo.c
 create mode 100644 include/configs/udoo.h

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..180d0c9
--- /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;
+}
diff --git a/boards.cfg b/boards.cfg
index 9fc77fb..66c998a 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -283,6 +283,7 @@ Active  arm         armv7          mx5         freescale       mx53smd
 Active  arm         armv7          mx5         genesi          mx51_efikamx        mx51_efikamx                         mx51_efikamx:MACH_TYPE=MACH_TYPE_MX51_EFIKAMX,IMX_CONFIG=board/genesi/mx51_efikamx/imximage_mx.cfg                                -
 Active  arm         armv7          mx5         genesi          mx51_efikamx        mx51_efikasb                         mx51_efikamx:MACH_TYPE=MACH_TYPE_MX51_EFIKASB,IMX_CONFIG=board/genesi/mx51_efikamx/imximage_sb.cfg                                -
 Active  arm         armv7          mx5         ttcontrol       vision2             vision2                              vision2:IMX_CONFIG=board/ttcontrol/vision2/imximage_hynix.cfg                                                                     Stefano Babic <sbabic@denx.de>
+Active  arm         armv7          mx6         -               udoo		   udoo_quad				udoo:IMX_CONFIG=board/boundary/nitrogen6x/nitrogen6q.cfg,MX6Q,DDR_MB=1024          Fabio Estevam <fabio.estevam@freescale.com>
 Active  arm         armv7          mx6         -               wandboard           wandboard_dl                         wandboard:IMX_CONFIG=board/boundary/nitrogen6x/nitrogen6dl.cfg,MX6DL,DDR_MB=1024                                                  Fabio Estevam <fabio.estevam@freescale.com>
 Active  arm         armv7          mx6         -               wandboard           wandboard_quad                       wandboard:IMX_CONFIG=board/boundary/nitrogen6x/nitrogen6q2g.cfg,MX6Q,DDR_MB=2048                                                  Fabio Estevam <fabio.estevam@freescale.com>
 Active  arm         armv7          mx6         -               wandboard           wandboard_solo                       wandboard:IMX_CONFIG=board/boundary/nitrogen6x/nitrogen6s.cfg,MX6S,DDR_MB=512                                                     Fabio Estevam <fabio.estevam@freescale.com>
diff --git a/include/configs/udoo.h b/include/configs/udoo.h
new file mode 100644
index 0000000..78df071
--- /dev/null
+++ b/include/configs/udoo.h
@@ -0,0 +1,206 @@
+/*
+ * Copyright (C) 2013 Freescale Semiconductor, Inc.
+ *
+ * Configuration settings for Udoo board.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#include <asm/arch/imx-regs.h>
+#include <asm/imx-common/gpio.h>
+#include <asm/sizes.h>
+
+#define CONFIG_MX6
+#define CONFIG_DISPLAY_CPUINFO
+#define CONFIG_DISPLAY_BOARDINFO
+
+#define MACH_TYPE_UDOO		4800
+#define CONFIG_MACH_TYPE	MACH_TYPE_UDOO
+
+#define CONFIG_CMDLINE_TAG
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_INITRD_TAG
+#define CONFIG_REVISION_TAG
+
+/* Size of malloc() pool */
+#define CONFIG_SYS_MALLOC_LEN		(2 * SZ_1M)
+
+#define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_MXC_GPIO
+
+#define CONFIG_MXC_UART
+#define CONFIG_MXC_UART_BASE		UART2_BASE
+
+/* allow to overwrite serial and ethaddr */
+#define CONFIG_ENV_OVERWRITE
+#define CONFIG_CONS_INDEX		1
+#define CONFIG_BAUDRATE			115200
+
+/* Command definition */
+#include <config_cmd_default.h>
+
+#undef CONFIG_CMD_IMLS
+
+#define CONFIG_CMD_BMODE
+#define CONFIG_CMD_SETEXPR
+
+#define CONFIG_BOOTDELAY		3
+
+#define CONFIG_SYS_MEMTEST_START	0x10000000
+#define CONFIG_SYS_MEMTEST_END		(CONFIG_SYS_MEMTEST_START + 500 * SZ_1M)
+#define CONFIG_LOADADDR			0x12000000
+#define CONFIG_SYS_TEXT_BASE		0x17800000
+
+/* MMC Configuration */
+#define CONFIG_FSL_ESDHC
+#define CONFIG_FSL_USDHC
+#define CONFIG_SYS_FSL_ESDHC_ADDR	0
+
+#define CONFIG_MMC
+#define CONFIG_CMD_MMC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_BOUNCE_BUFFER
+#define CONFIG_CMD_EXT2
+#define CONFIG_CMD_FAT
+#define CONFIG_DOS_PARTITION
+
+#define CONFIG_DEFAULT_FDT_FILE		"imx6q-udoo.dtb"
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	"script=boot.scr\0" \
+	"uimage=uImage\0" \
+	"console=ttymxc1\0" \
+	"splashpos=m,m\0" \
+	"fdt_high=0xffffffff\0" \
+	"initrd_high=0xffffffff\0" \
+	"fdt_file=" CONFIG_DEFAULT_FDT_FILE "\0" \
+	"fdt_addr=0x11000000\0" \
+	"boot_fdt=try\0" \
+	"ip_dyn=yes\0" \
+	"mmcdev=0\0" \
+	"mmcpart=1\0" \
+	"mmcroot=/dev/mmcblk0p2 rootwait rw\0" \
+	"update_sd_firmware_filename=u-boot.imx\0" \
+	"update_sd_firmware=" \
+		"if test ${ip_dyn} = yes; then " \
+			"setenv get_cmd dhcp; " \
+		"else " \
+			"setenv get_cmd tftp; " \
+		"fi; " \
+		"if mmc dev ${mmcdev}; then "	\
+			"if ${get_cmd} ${update_sd_firmware_filename}; then " \
+				"setexpr fw_sz ${filesize} / 0x200; " \
+				"setexpr fw_sz ${fw_sz} + 1; "	\
+				"mmc write ${loadaddr} 0x2 ${fw_sz}; " \
+			"fi; "	\
+		"fi\0" \
+	"mmcargs=setenv bootargs console=${console},${baudrate} " \
+		"root=${mmcroot}\0" \
+	"loadbootscript=" \
+		"fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \
+	"bootscript=echo Running bootscript from mmc ...; " \
+		"source\0" \
+	"loaduimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${uimage}\0" \
+	"loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \
+	"mmcboot=echo Booting from mmc ...; " \
+		"run mmcargs; " \
+		"if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
+			"if run loadfdt; then " \
+				"bootm ${loadaddr} - ${fdt_addr}; " \
+			"else " \
+				"if test ${boot_fdt} = try; then " \
+					"bootm; " \
+				"else " \
+					"echo WARN: Cannot load the DT; " \
+				"fi; " \
+			"fi; " \
+		"else " \
+			"bootm; " \
+		"fi;\0" \
+	"netargs=setenv bootargs console=${console},${baudrate} " \
+		"root=/dev/nfs " \
+	"ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp\0" \
+		"netboot=echo Booting from net ...; " \
+		"run netargs; " \
+		"if test ${ip_dyn} = yes; then " \
+			"setenv get_cmd dhcp; " \
+		"else " \
+			"setenv get_cmd tftp; " \
+		"fi; " \
+		"${get_cmd} ${uimage}; " \
+		"if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
+			"if ${get_cmd} ${fdt_addr} ${fdt_file}; then " \
+				"bootm ${loadaddr} - ${fdt_addr}; " \
+			"else " \
+				"if test ${boot_fdt} = try; then " \
+					"bootm; " \
+				"else " \
+					"echo WARN: Cannot load the DT; " \
+				"fi; " \
+			"fi; " \
+		"else " \
+			"bootm; " \
+		"fi;\0"
+
+#define CONFIG_BOOTCOMMAND \
+	   "mmc dev ${mmcdev}; if mmc rescan; then " \
+		   "if run loadbootscript; then " \
+			   "run bootscript; " \
+		   "else " \
+			   "if run loaduimage; then " \
+				   "run mmcboot; " \
+			   "else run netboot; " \
+			   "fi; " \
+		   "fi; " \
+	   "else run netboot; fi"
+
+/* Miscellaneous configurable options */
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_SYS_HUSH_PARSER
+#define CONFIG_SYS_PROMPT	       "=> "
+#define CONFIG_AUTO_COMPLETE
+#define CONFIG_SYS_CBSIZE		256
+
+/* Print Buffer Size */
+#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
+#define CONFIG_SYS_MAXARGS	       16
+#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
+
+#define CONFIG_SYS_LOAD_ADDR		CONFIG_LOADADDR
+#define CONFIG_SYS_HZ			1000
+
+#define CONFIG_CMDLINE_EDITING
+
+/* Physical Memory Map */
+#define CONFIG_NR_DRAM_BANKS		1
+#define PHYS_SDRAM			MMDC0_ARB_BASE_ADDR
+
+#define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM
+#define CONFIG_SYS_INIT_RAM_ADDR	IRAM_BASE_ADDR
+#define CONFIG_SYS_INIT_RAM_SIZE	IRAM_SIZE
+
+#define CONFIG_SYS_INIT_SP_OFFSET \
+	(CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
+#define CONFIG_SYS_INIT_SP_ADDR \
+	(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
+
+/* FLASH and environment organization */
+#define CONFIG_SYS_NO_FLASH
+
+#define CONFIG_ENV_SIZE			(8 * 1024)
+
+#define CONFIG_ENV_IS_IN_MMC
+#define CONFIG_ENV_OFFSET		(6 * 64 * 1024)
+#define CONFIG_SYS_MMC_ENV_DEV		0
+
+#define CONFIG_OF_LIBFDT
+#define CONFIG_CMD_BOOTZ
+
+#ifndef CONFIG_SYS_DCACHE_OFF
+#define CONFIG_CMD_CACHE
+#endif
+
+#endif			       /* __CONFIG_H * */
-- 
1.8.1.2