With this patch the barebox_update command will be extended by the possibility to flash the MLO to eMMC devices.
The MLO will be flashed to the following addresses: 0x20000 0x40000 0x60000 The MBR at addr. 0x0 won't be overwritten. Therefore it's necessary to remove the MLO in the boot partition. Signed-off-by: Daniel Schultz <[email protected]> --- arch/arm/configs/am335x_defconfig | 1 + arch/arm/mach-omap/Kconfig | 7 ++++ arch/arm/mach-omap/Makefile | 1 + arch/arm/mach-omap/am33xx_bbu_emmc.c | 78 +++++++++++++++++++++++++++++++++++ arch/arm/mach-omap/include/mach/bbu.h | 18 ++++++++ 5 files changed, 105 insertions(+) create mode 100644 arch/arm/mach-omap/am33xx_bbu_emmc.c diff --git a/arch/arm/configs/am335x_defconfig b/arch/arm/configs/am335x_defconfig index 559f56a..c5ab3c9 100644 --- a/arch/arm/configs/am335x_defconfig +++ b/arch/arm/configs/am335x_defconfig @@ -1,6 +1,7 @@ CONFIG_ARCH_OMAP=y CONFIG_BAREBOX_UPDATE_AM33XX_SPI_NOR_MLO=y CONFIG_BAREBOX_UPDATE_AM33XX_NAND=y +CONFIG_BAREBOX_UPDATE_AM33XX_EMMC=y CONFIG_OMAP_MULTI_BOARDS=y CONFIG_MACH_AFI_GF=y CONFIG_MACH_BEAGLEBONE=y diff --git a/arch/arm/mach-omap/Kconfig b/arch/arm/mach-omap/Kconfig index fb17df0..0df38e1 100644 --- a/arch/arm/mach-omap/Kconfig +++ b/arch/arm/mach-omap/Kconfig @@ -105,6 +105,13 @@ config BAREBOX_UPDATE_AM33XX_NAND This also includes a handler for updating the regular barebox binary in NAND. +config BAREBOX_UPDATE_AM33XX_EMMC + prompt "barebox update eMMC handler" + bool + depends on BAREBOX_UPDATE + help + Say Y for barebox update eMMC handler. + config ARCH_TEXT_BASE hex default 0x80e80000 if MACH_OMAP343xSDP diff --git a/arch/arm/mach-omap/Makefile b/arch/arm/mach-omap/Makefile index bef1d05..82f1a9e 100644 --- a/arch/arm/mach-omap/Makefile +++ b/arch/arm/mach-omap/Makefile @@ -34,3 +34,4 @@ obj-$(CONFIG_OMAP4_USBBOOT) += omap4_rom_usb.o obj-$(CONFIG_CMD_BOOT_ORDER) += boot_order.o obj-$(CONFIG_BAREBOX_UPDATE_AM33XX_SPI_NOR_MLO) += am33xx_bbu_spi_mlo.o obj-$(CONFIG_BAREBOX_UPDATE_AM33XX_NAND) += am33xx_bbu_nand.o +obj-$(CONFIG_BAREBOX_UPDATE_AM33XX_EMMC) += am33xx_bbu_emmc.o diff --git a/arch/arm/mach-omap/am33xx_bbu_emmc.c b/arch/arm/mach-omap/am33xx_bbu_emmc.c new file mode 100644 index 0000000..1c1bebc --- /dev/null +++ b/arch/arm/mach-omap/am33xx_bbu_emmc.c @@ -0,0 +1,78 @@ +/* + * Copyright (c) 2015 Phytec Messtechnik GmbH + * Author: Daniel Schultz <[email protected]> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * 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. + */ + +#include <common.h> +#include <malloc.h> +#include <bbu.h> +#include <fs.h> +#include <fcntl.h> +#include <filetype.h> + +static int emmc_mlo_handler(struct bbu_handler *handler, struct bbu_data *data) +{ + int ret = 0; + int i = 0; + int fd; + const void *image = data->image; + size_t size = data->len; + + if (file_detect_type(image, size) != filetype_ch_image) { + pr_err("%s is not a valid ch-image\n", data->imagefile); + return -EINVAL; + } + ret = bbu_confirm(data); + if (ret != 0) + return ret; + + fd = open(handler->devicefile, O_WRONLY); + if (fd < 0) { + pr_err("could not open %s: %s\n", handler->devicefile, + errno_str()); + return fd; + } + + for (i = 1; i < 4; i++) { + ret = pwrite(fd, image, size, i * 0x20000); + if (ret < 0) { + pr_err("could not write to fd %s: %s\n", + handler->devicefile, errno_str()); + close(fd); + return ret; + } + } + close(fd); + + printf("Remove the MLO from the %s boot partition.\nOtherwise the wrong MLO may be loaded!\n", + handler->devicefile); + + return 0; +} + +int am33xx_bbu_emmc_mlo_register_handler(const char *name, char *devicefile) +{ + struct bbu_handler *handler; + int ret; + + handler = xzalloc(sizeof(*handler)); + handler->devicefile = devicefile; + handler->name = name; + handler->handler = emmc_mlo_handler; + + ret = bbu_register_handler(handler); + + if (ret) + free(handler); + + return ret; +} diff --git a/arch/arm/mach-omap/include/mach/bbu.h b/arch/arm/mach-omap/include/mach/bbu.h index 36d87e1..4d1b4fa 100644 --- a/arch/arm/mach-omap/include/mach/bbu.h +++ b/arch/arm/mach-omap/include/mach/bbu.h @@ -37,4 +37,22 @@ static inline int am33xx_bbu_nand_register_handler(const char *name, char *devic } #endif +#ifdef CONFIG_BAREBOX_UPDATE_AM33XX_EMMC +int am33xx_bbu_emmc_mlo_register_handler(const char *name, char *devicefile); +int am33xx_bbu_emmc_register_handler(const char *name, char *devicefile); +#else +static inline int am33xx_bbu_emmc_mlo_register_handler(const char *name, + char *devicefile) +{ + return 0; +} + +static inline int am33xx_bbu_emmc_register_handler(const char *name, + char *devicefile) +{ + return 0; +} +#endif + + #endif -- 1.9.1 _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
