--- /dev/null
+/*
+ * Copyright (C) 2014, 2015 O.S. Systems Software LTDA.
+ * Copyright (C) 2014 Kynetics LLC.
+ * Copyright (C) 2014 Revolution Robotics, Inc.
+ *
+ * Author: Otavio Salvador <otavio@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;
+}
--- /dev/null
+/*
+ * Copyright (C) 2014 O.S. Systems Software LTDA.
+ * Copyright (C) 2014 Kynetics LLC.
+ * Copyright (C) 2014 Revolution Robotics, Inc.
+ *
+ * Author: Otavio Salvador <otavio@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 */
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