From 2565cac2cfe8978f917bd82afd0d9284695e6775 Mon Sep 17 00:00:00 2001 From: Wadim Egorov Date: Fri, 16 May 2014 10:18:29 +0200 Subject: [PATCH] ARM: omap: barebox update nand xloadslots handler - Added barebox nand xloadslots update handler - This handler updates all given xload slots in nand Signed-off-by: Wadim Egorov Signed-off-by: Sascha Hauer --- arch/arm/mach-omap/Kconfig | 10 ++ arch/arm/mach-omap/Makefile | 1 + .../mach-omap/am33xx_bbu_nand_xloadslots.c | 122 ++++++++++++++++++ arch/arm/mach-omap/include/mach/bbu.h | 13 ++ 4 files changed, 146 insertions(+) create mode 100644 arch/arm/mach-omap/am33xx_bbu_nand_xloadslots.c diff --git a/arch/arm/mach-omap/Kconfig b/arch/arm/mach-omap/Kconfig index 12b9c1fe4..ee6d5481a 100644 --- a/arch/arm/mach-omap/Kconfig +++ b/arch/arm/mach-omap/Kconfig @@ -93,6 +93,16 @@ config BAREBOX_UPDATE_AM33XX_SPI_NOR_MLO Say Y for barebox update SPI NOR MLO handler. AM35xx, AM33xx chips use big endian MLO for SPI NOR flash. +config BAREBOX_UPDATE_AM33XX_NAND_XLOADSLOTS + prompt "barebox update nand xload slots handler" + bool + depends on BAREBOX_UPDATE + help + Say Y for barebox update nand xload slots handler. + This update handler updates 4 default nand xload slots + with a single command. + The Handler also checks if the given image has a valid CH header. + 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 81a771eb3..c9b6f4bb9 100644 --- a/arch/arm/mach-omap/Makefile +++ b/arch/arm/mach-omap/Makefile @@ -32,3 +32,4 @@ obj-$(CONFIG_MFD_TWL6030) += omap4_twl6030_mmc.o obj-$(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_XLOADSLOTS) += am33xx_bbu_nand_xloadslots.o diff --git a/arch/arm/mach-omap/am33xx_bbu_nand_xloadslots.c b/arch/arm/mach-omap/am33xx_bbu_nand_xloadslots.c new file mode 100644 index 000000000..0b4f1ccf0 --- /dev/null +++ b/arch/arm/mach-omap/am33xx_bbu_nand_xloadslots.c @@ -0,0 +1,122 @@ +/* + * am33xx_bbu_nand_xloadslots.c - barebox update handler for + * the nand xload slots. + * + * Copyright (c) 2014 Wadim Egorov , Phytec + * + * 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 +#include +#include +#include +#include +#include +#include + +struct nand_bbu_handler { + struct bbu_handler bbu_handler; + char **devicefile; + int num_devicefiles; +}; + +static int write_image(const char *devfile, const void *image, size_t size) +{ + int fd = 0; + int ret = 0; + + fd = open(devfile, O_WRONLY); + if (fd < 0) { + pr_err("could not open %s: %s\n", devfile, + errno_str()); + return fd; + } + + ret = erase(fd, ~0, 0); + if (ret < 0) { + pr_err("could not erase %s: %s\n", devfile, + errno_str()); + close(fd); + return ret; + } + + ret = write(fd, image, size); + if (ret < 0) { + pr_err("could not write to fd %s: %s\n", devfile, + errno_str()); + close(fd); + return ret; + } + + close(fd); + + return 0; +} + +/* + * This handler updates all given xload slots in nand with an image. + */ +static int nand_xloadslots_update_handler(struct bbu_handler *handler, + struct bbu_data *data) +{ + int ret = 0; + const void *image = data->image; + size_t size = data->len; + struct nand_bbu_handler *nh; + int i = 0; + + if (file_detect_type(image, size) != filetype_ch_image) { + pr_err("%s is not a valid ch-image\n", data->imagefile); + return -EINVAL; + } + + nh = container_of(handler, struct nand_bbu_handler, bbu_handler); + + /* check if the devicefile has been overwritten */ + if (strcmp(data->devicefile, nh->devicefile[0]) != 0) { + ret = bbu_confirm(data); + if (ret != 0) + return ret; + + ret = write_image(data->devicefile, image, size); + if (ret != 0) + return ret; + } else { + for (i = 0; i < nh->num_devicefiles; i++) { + ret = write_image(nh->devicefile[i], image, size); + if (ret != 0) + return ret; + } + } + + return 0; +} + +int am33xx_bbu_nand_xloadslots_register_handler(const char *name, + char **devicefile, + int num_devicefiles) +{ + struct nand_bbu_handler *handler; + int ret; + + handler = xzalloc(sizeof(*handler)); + handler->devicefile = devicefile; + handler->num_devicefiles = num_devicefiles; + handler->bbu_handler.devicefile = devicefile[0]; + handler->bbu_handler.handler = nand_xloadslots_update_handler; + handler->bbu_handler.name = name; + + ret = bbu_register_handler(&handler->bbu_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 9b0e4bf90..8c4c5e3eb 100644 --- a/arch/arm/mach-omap/include/mach/bbu.h +++ b/arch/arm/mach-omap/include/mach/bbu.h @@ -18,4 +18,17 @@ static inline int am33xx_bbu_spi_nor_register_handler(const char *name, char *de } #endif +#ifdef CONFIG_BAREBOX_UPDATE_AM33XX_NAND_XLOADSLOTS +int am33xx_bbu_nand_xloadslots_register_handler(const char *name, + char **devicefile, + int num_devicefiles); +#else +static inline int am33xx_bbu_nand_xloadslots_register_handler(const char *name, + char **devicefile, + int num_devicefiles) +{ + return 0; +} +#endif + #endif