[U-Boot] [PATCH 4/4] warp: Add initial WaRP Board support

Otavio Salvador otavio at ossystems.com.br
Mon Feb 16 22:38:03 CET 2015


The WaRP Board is a Wearable Reference Plaform. The board features:

 - Freescale i.MX6 SoloLite processor with 512MB of RAM
 - Freescale FXOS8700CQ 6-axis Xtrinsic sensor
 - Freescale Kinetis KL16 MCU
 - Freescale Xtrinsic MMA955xL intelligent motion sensing platform

The board implements a hybrid architecture to address the evolving
needs of the wearables market. The platform consists of a main board
and an example daughtercard with the ability to add additional
daughtercards for different usage models.

For more information about the project, visit:

 http://www.warpboard.org/

Signed-off-by: Otavio Salvador <otavio at ossystems.com.br>
---

 arch/arm/Kconfig       |   5 ++
 board/warp/Kconfig     |  12 +++
 board/warp/MAINTAINERS |   6 ++
 board/warp/Makefile    |   8 ++
 board/warp/warp.c      | 113 ++++++++++++++++++++++++++++
 configs/warp_defconfig |   3 +
 include/configs/warp.h | 198 +++++++++++++++++++++++++++++++++++++++++++++++++
 7 files changed, 345 insertions(+)
 create mode 100644 board/warp/Kconfig
 create mode 100644 board/warp/MAINTAINERS
 create mode 100644 board/warp/Makefile
 create mode 100644 board/warp/warp.c
 create mode 100644 configs/warp_defconfig
 create mode 100644 include/configs/warp.h

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1f1ccad..a3eb876 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -608,6 +608,10 @@ config TARGET_WANDBOARD
 	bool "Support wandboard"
 	select CPU_V7
 
+config TARGET_WARP
+	bool "Support WaRP"
+	select CPU_V7
+
 config TARGET_TITANIUM
 	bool "Support titanium"
 	select CPU_V7
@@ -1013,6 +1017,7 @@ source "board/ttcontrol/vision2/Kconfig"
 source "board/udoo/Kconfig"
 source "board/vpac270/Kconfig"
 source "board/wandboard/Kconfig"
+source "board/warp/Kconfig"
 source "board/woodburn/Kconfig"
 source "board/xaeniax/Kconfig"
 source "board/zipitz2/Kconfig"
diff --git a/board/warp/Kconfig b/board/warp/Kconfig
new file mode 100644
index 0000000..7b569cc
--- /dev/null
+++ b/board/warp/Kconfig
@@ -0,0 +1,12 @@
+if TARGET_WARP
+
+config SYS_BOARD
+	default "warp"
+
+config SYS_SOC
+	default "mx6"
+
+config SYS_CONFIG_NAME
+	default "warp"
+
+endif
diff --git a/board/warp/MAINTAINERS b/board/warp/MAINTAINERS
new file mode 100644
index 0000000..ee2114d
--- /dev/null
+++ b/board/warp/MAINTAINERS
@@ -0,0 +1,6 @@
+WaRP BOARD
+M:	Otavio Salvador <otavio at ossystems.com.br>
+S:	Maintained
+F:	board/warp/
+F:	include/configs/warp.h
+F:	configs/warp_defconfig
diff --git a/board/warp/Makefile b/board/warp/Makefile
new file mode 100644
index 0000000..c555f87
--- /dev/null
+++ b/board/warp/Makefile
@@ -0,0 +1,8 @@
+# Copyright (C) 2014 O.S. Systems Software LTDA.
+# Copyright (C) 2014 Kynetics LLC.
+# Copyright (C) 2014 Revolution Robotics, Inc.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y  := warp.o
diff --git a/board/warp/warp.c b/board/warp/warp.c
new file mode 100644
index 0000000..3b275c2
--- /dev/null
+++ b/board/warp/warp.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2014, 2015 O.S. Systems Software LTDA.
+ * Copyright (C) 2014 Kynetics LLC.
+ * Copyright (C) 2014 Revolution Robotics, Inc.
+ *
+ * Author: Otavio Salvador <otavio at ossystems.com.br>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <asm/arch/clock.h>
+#include <asm/arch/iomux.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/mx6-pins.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/gpio.h>
+#include <asm/imx-common/iomux-v3.h>
+#include <asm/io.h>
+#include <linux/sizes.h>
+#include <common.h>
+#include <watchdog.h>
+#include <fsl_esdhc.h>
+#include <mmc.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 | \
+	PAD_CTL_LVE)
+
+#define USDHC_PAD_CTRL (PAD_CTL_PUS_22K_UP | \
+	PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
+	PAD_CTL_SRE_FAST  | PAD_CTL_HYS | \
+	PAD_CTL_LVE)
+
+int dram_init(void)
+{
+	gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
+
+	return 0;
+}
+
+static void setup_iomux_uart(void)
+{
+	static iomux_v3_cfg_t const uart1_pads[] = {
+		MX6_PAD_UART1_TXD__UART1_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
+		MX6_PAD_UART1_RXD__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
+	};
+
+	imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
+}
+
+static struct fsl_esdhc_cfg usdhc_cfg[1] = {
+	{USDHC2_BASE_ADDR},
+};
+
+int board_mmc_getcd(struct mmc *mmc)
+{
+	return 1;	/* Assume boot SD always present */
+}
+
+int board_mmc_init(bd_t *bis)
+{
+	static 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_RST__USDHC2_RST | 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_SD2_DAT4__USDHC2_DAT4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+		MX6_PAD_SD2_DAT5__USDHC2_DAT5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+		MX6_PAD_SD2_DAT6__USDHC2_DAT6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+		MX6_PAD_SD2_DAT7__USDHC2_DAT7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	};
+
+	imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
+
+	usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
+	return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
+}
+
+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 board_late_init(void)
+{
+#ifdef CONFIG_HW_WATCHDOG
+	hw_watchdog_init();
+#endif
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	puts("Board: WaRP Board\n");
+
+	return 0;
+}
diff --git a/configs/warp_defconfig b/configs/warp_defconfig
new file mode 100644
index 0000000..624a8af
--- /dev/null
+++ b/configs/warp_defconfig
@@ -0,0 +1,3 @@
+CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/mx6slevk/imximage.cfg,MX6SL"
+CONFIG_ARM=y
+CONFIG_TARGET_WARP=y
diff --git a/include/configs/warp.h b/include/configs/warp.h
new file mode 100644
index 0000000..82036e4
--- /dev/null
+++ b/include/configs/warp.h
@@ -0,0 +1,198 @@
+/*
+ * Copyright (C) 2014 O.S. Systems Software LTDA.
+ * Copyright (C) 2014 Kynetics LLC.
+ * Copyright (C) 2014 Revolution Robotics, Inc.
+ *
+ * Author: Otavio Salvador <otavio at ossystems.com.br>
+ *
+ * Configuration settings for the WaRP Board
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#include <asm/arch/imx-regs.h>
+#include <linux/sizes.h>
+#include "mx6_common.h"
+
+#define CONFIG_MX6
+#define CONFIG_DISPLAY_CPUINFO
+#define CONFIG_DISPLAY_BOARDINFO
+#define CONFIG_SYS_GENERIC_BOARD
+
+#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		(3 * SZ_1M)
+
+#define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_BOARD_LATE_INIT
+#define CONFIG_MXC_GPIO
+
+#define CONFIG_MXC_UART
+#define CONFIG_MXC_UART_BASE		UART1_IPS_BASE_ADDR
+
+/* MMC Configs */
+#define CONFIG_FSL_ESDHC
+#define CONFIG_FSL_USDHC
+#define CONFIG_SYS_FSL_ESDHC_ADDR	0
+#define CONFIG_SYS_FSL_ESDHC_FORCE_VSELECT
+
+#define CONFIG_MMC
+#define CONFIG_CMD_MMC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_CMD_FAT
+#define CONFIG_DOS_PARTITION
+
+/* allow to overwrite serial and ethaddr */
+#define CONFIG_ENV_OVERWRITE
+#define CONFIG_CONS_INDEX		1
+#define CONFIG_BAUDRATE			115200
+
+/* FLASH and environment organization */
+#define CONFIG_SYS_NO_FLASH
+
+/* Command definition */
+#include <config_cmd_default.h>
+#undef CONFIG_CMD_NET
+#undef CONFIG_CMD_NFS
+
+#define CONFIG_BOOTDELAY		3
+
+#define CONFIG_LOADADDR			0x82000000
+#define CONFIG_SYS_TEXT_BASE		0x87800000
+
+/* Miscellaneous configurable options */
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_SYS_HUSH_PARSER
+#define CONFIG_AUTO_COMPLETE
+#define CONFIG_SYS_CBSIZE		256
+
+/* Watchdog */
+#define CONFIG_HW_WATCHDOG
+#define CONFIG_IMX_WATCHDOG
+#define CONFIG_WATCHDOG_TIMEOUT_MSECS 30000 /* 30s */
+
+/* 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_MEMTEST_START	0x80000000
+#define CONFIG_SYS_MEMTEST_END		(CONFIG_SYS_MEMTEST_START + SZ_256M)
+
+#define CONFIG_SYS_LOAD_ADDR		CONFIG_LOADADDR
+
+#define CONFIG_CMDLINE_EDITING
+#define CONFIG_STACKSIZE		SZ_128K
+
+/* Physical Memory Map */
+#define CONFIG_NR_DRAM_BANKS		1
+#define PHYS_SDRAM			MMDC0_ARB_BASE_ADDR
+#define PHYS_SDRAM_SIZE			SZ_512M
+
+#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)
+
+#define CONFIG_ENV_OFFSET		(6 * SZ_64K)
+#define CONFIG_ENV_SIZE			SZ_8K
+#define CONFIG_ENV_IS_IN_MMC
+#define CONFIG_SYS_MMC_ENV_DEV		0
+
+/* VDD voltage 1.65 - 1.95 */
+#define CONFIG_SYS_SD_VOLTAGE		0x00000080
+
+#define CONFIG_OF_LIBFDT
+#define CONFIG_CMD_BOOTZ
+
+#ifndef CONFIG_SYS_DCACHE_OFF
+#define CONFIG_CMD_CACHE
+#endif
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	"script=boot.scr\0" \
+	"image=zImage\0" \
+	"console=ttymxc0\0" \
+	"fdt_high=0xffffffff\0" \
+	"initrd_high=0xffffffff\0" \
+	"fdt_file=imx6sl-warp.dtb\0" \
+	"fdt_addr=0x88000000\0" \
+	"initrd_addr=0x83800000\0" \
+	"boot_fdt=try\0" \
+	"ip_dyn=yes\0" \
+	"mmcdev=0\0" \
+	"mmcpart=1\0" \
+	"mmcroot=/dev/mmcblk0p2 rootwait rw\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" \
+	"loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\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 " \
+				"bootz ${loadaddr} - ${fdt_addr}; " \
+			"else " \
+				"if test ${boot_fdt} = try; then " \
+					"bootz; " \
+				"else " \
+					"echo WARN: Cannot load the DT; " \
+				"fi; " \
+			"fi; " \
+		"else " \
+			"bootz; " \
+		"fi;\0" \
+	"netargs=setenv bootargs console=${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} ${image}; " \
+		"if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
+			"if ${get_cmd} ${fdt_addr} ${fdt_file}; then " \
+				"bootz ${loadaddr} - ${fdt_addr}; " \
+			"else " \
+				"if test ${boot_fdt} = try; then " \
+					"bootz; " \
+				"else " \
+					"echo WARN: Cannot load the DT; " \
+				"fi; " \
+			"fi; " \
+		"else " \
+			"bootz; " \
+		"fi;\0"
+
+#define CONFIG_BOOTCOMMAND \
+	   "mmc dev ${mmcdev};" \
+	   "mmc dev ${mmcdev}; if mmc rescan; then " \
+		   "if run loadbootscript; then " \
+			   "run bootscript; " \
+		   "else " \
+			   "if run loadimage; then " \
+				   "run mmcboot; " \
+			   "else run netboot; " \
+			   "fi; " \
+		   "fi; " \
+	   "else run netboot; fi"
+
+#endif				/* __CONFIG_H */
-- 
2.1.4



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