September 2015 - U-Boot

[U-Boot] [PATCH v2] include: configs: Enable DWC3 and DFU in OMAP5 uEVM
by Kishon Vijay Abraham I 12 Sep '15

12 Sep '15

Enable dwc3, dwc3-omap and PHY to get DWC3 functional in OMAP5 uEVM. Also enable support for DFU. Signed-off-by: Kishon Vijay Abraham I <kishon(a)ti.com> Reviewed-by: Tom Rini <trini(a)konsulko.com> --- Changes from v1: use present tense in commit log. include/configs/omap5_uevm.h | 62 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) diff --git a/include/configs/omap5_uevm.h b/include/configs/omap5_uevm.h index 8647921..18a2924 100644 --- a/include/configs/omap5_uevm.h +++ b/include/configs/omap5_uevm.h @@ -19,6 +19,47 @@ "name=rootfs,start=2MiB,size=-,uuid=${uuid_gpt_rootfs}" #endif +#define DFU_ALT_INFO_MMC \ + "dfu_alt_info_mmc=" \ + "boot part 0 1;" \ + "rootfs part 0 2;" \ + "MLO fat 0 1;" \ + "MLO.raw raw 0x100 0x100;" \ + "u-boot.img.raw raw 0x300 0x400;" \ + "spl-os-args.raw raw 0x80 0x80;" \ + "spl-os-image.raw raw 0x900 0x2000;" \ + "spl-os-args fat 0 1;" \ + "spl-os-image fat 0 1;" \ + "u-boot.img fat 0 1;" \ + "uEnv.txt fat 0 1\0" + +#define DFU_ALT_INFO_EMMC \ + "dfu_alt_info_emmc=" \ + "rawemmc raw 0 3751936;" \ + "boot part 1 1;" \ + "rootfs part 1 2;" \ + "MLO fat 1 1;" \ + "MLO.raw raw 0x100 0x100;" \ + "u-boot.img.raw raw 0x300 0x400;" \ + "spl-os-args.raw raw 0x80 0x80;" \ + "spl-os-image.raw raw 0x900 0x2000;" \ + "spl-os-args fat 1 1;" \ + "spl-os-image fat 1 1;" \ + "u-boot.img fat 1 1;" \ + "uEnv.txt fat 1 1\0" + +#define DFU_ALT_INFO_RAM \ + "dfu_alt_info_ram=" \ + "kernel ram 0x80200000 0x4000000;" \ + "fdt ram 0x80f80000 0x80000;" \ + "ramdisk ram 0x81000000 0x4000000\0" + +#define DFUARGS \ + "dfu_bufsiz=0x10000\0" \ + DFU_ALT_INFO_MMC \ + DFU_ALT_INFO_EMMC \ + DFU_ALT_INFO_RAM + #include <configs/ti_omap5_common.h> #define CONFIG_CONS_INDEX 3 @@ -58,6 +99,27 @@ #define CONFIG_OMAP_EHCI_PHY2_RESET_GPIO 80 #define CONFIG_OMAP_EHCI_PHY3_RESET_GPIO 79 +/* USB GADGET */ +#define CONFIG_USB_DWC3_PHY_OMAP +#define CONFIG_USB_DWC3_OMAP +#define CONFIG_USB_DWC3 +#define CONFIG_USB_DWC3_GADGET + +#define CONFIG_USB_GADGET +#define CONFIG_USB_GADGET_DOWNLOAD +#define CONFIG_USB_GADGET_VBUS_DRAW 2 +#define CONFIG_G_DNL_MANUFACTURER "Texas Instruments" +#define CONFIG_G_DNL_VENDOR_NUM 0x0403 +#define CONFIG_G_DNL_PRODUCT_NUM 0xBD00 +#define CONFIG_USB_GADGET_DUALSPEED + +/* USB Device Firmware Update support */ +#define CONFIG_USB_FUNCTION_DFU +#define CONFIG_DFU_RAM +#define CONFIG_CMD_DFU + +#define CONFIG_DFU_MMC + /* Enabled commands */ #define CONFIG_CMD_DHCP /* DHCP Support */ -- 1.7.9.5

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[U-Boot] [PATCH v2 1/2] Move malloc_cache_aligned() to its own header
by Simon Glass 12 Sep '15

12 Sep '15

At present malloc.h is included everywhere since it recently was added to common.h in this commit: 4519668 mtd/nand/ubi: assortment of alignment fixes This seems wasteful and unnecessary. We have been trying to trim down common.h and put separate functions into separate header files and that change goes in the opposite direction. Move malloc_cache_aligned() to a new header so that this can be avoided. The header would perhaps be better named as alignmem.h but it needs to be included after common.h and people might be confused by this. With the name memalign.h it fits nicely after malloc() in most cases. Signed-off-by: Simon Glass <sjg(a)chromium.org> --- Changes in v2: None common/cmd_ubi.c | 2 +- drivers/mtd/nand/nand_util.c | 1 + fs/ubifs/super.c | 3 +++ fs/ubifs/ubifs.c | 2 ++ include/common.h | 9 --------- include/memalign.h | 25 +++++++++++++++++++++++++ lib/gzip.c | 1 + lib/zlib/zutil.c | 4 +++- 8 files changed, 36 insertions(+), 11 deletions(-) create mode 100644 include/memalign.h diff --git a/common/cmd_ubi.c b/common/cmd_ubi.c index 10eea65..0460b4c 100644 --- a/common/cmd_ubi.c +++ b/common/cmd_ubi.c @@ -14,7 +14,7 @@ #include <common.h> #include <command.h> #include <exports.h> - +#include <memalign.h> #include <nand.h> #include <onenand_uboot.h> #include <linux/mtd/mtd.h> diff --git a/drivers/mtd/nand/nand_util.c b/drivers/mtd/nand/nand_util.c index 21b4a61..71285b6 100644 --- a/drivers/mtd/nand/nand_util.c +++ b/drivers/mtd/nand/nand_util.c @@ -23,6 +23,7 @@ #include <command.h> #include <watchdog.h> #include <malloc.h> +#include <memalign.h> #include <div64.h> #include <asm/errno.h> diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c index 0bf52db..41763a1 100644 --- a/fs/ubifs/super.c +++ b/fs/ubifs/super.c @@ -28,6 +28,9 @@ #include <linux/writeback.h> #else +#include <common.h> +#include <malloc.h> +#include <memalign.h> #include <linux/compat.h> #include <linux/stat.h> #include <linux/err.h> diff --git a/fs/ubifs/ubifs.c b/fs/ubifs/ubifs.c index 4daa7fa..f7a0847 100644 --- a/fs/ubifs/ubifs.c +++ b/fs/ubifs/ubifs.c @@ -23,6 +23,8 @@ * Adrian Hunter */ +#include <common.h> +#include <memalign.h> #include "ubifs.h" #include <u-boot/zlib.h> diff --git a/include/common.h b/include/common.h index c12f402..c48e5bc 100644 --- a/include/common.h +++ b/include/common.h @@ -1060,15 +1060,6 @@ int cpu_release(int nr, int argc, char * const argv[]); #define DEFINE_CACHE_ALIGN_BUFFER(type, name, size) \ DEFINE_ALIGN_BUFFER(type, name, size, ARCH_DMA_MINALIGN) -#ifndef __ASSEMBLY__ -#include <malloc.h> - -static inline void *malloc_cache_aligned(size_t size) -{ - return memalign(ARCH_DMA_MINALIGN, ALIGN(size, ARCH_DMA_MINALIGN)); -} -#endif - /* * check_member() - Check the offset of a structure member * diff --git a/include/memalign.h b/include/memalign.h new file mode 100644 index 0000000..f78b9dd --- /dev/null +++ b/include/memalign.h @@ -0,0 +1,25 @@ +/* + * Copyright (c) 2015 Google, Inc + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __ALIGNMEM_H +#define __ALIGNMEM_H + +/* + * ARCH_DMA_MINALIGN is defined in asm/cache.h for each architecture. It + * is used to align DMA buffers. + */ +#ifndef __ASSEMBLY__ +#include <asm/cache.h> + +#include <malloc.h> + +static inline void *malloc_cache_aligned(size_t size) +{ + return memalign(ARCH_DMA_MINALIGN, ALIGN(size, ARCH_DMA_MINALIGN)); +} +#endif + +#endif /* __ALIGNMEM_H */ diff --git a/lib/gzip.c b/lib/gzip.c index cd8e9fe..2c49e4e 100644 --- a/lib/gzip.c +++ b/lib/gzip.c @@ -10,6 +10,7 @@ #include <command.h> #include <image.h> #include <malloc.h> +#include <memalign.h> #include <u-boot/zlib.h> #include "zlib/zutil.h" diff --git a/lib/zlib/zutil.c b/lib/zlib/zutil.c index 173a81d..227343e 100644 --- a/lib/zlib/zutil.c +++ b/lib/zlib/zutil.c @@ -43,7 +43,9 @@ void z_error (m) */ #ifndef MY_ZCALLOC /* Any system without a special alloc function */ -#ifndef __UBOOT__ +#ifdef __UBOOT__ +#include <malloc.h> +#else #ifndef STDC extern voidp malloc OF((uInt size)); extern voidp calloc OF((uInt items, uInt size)); -- 2.5.0.457.gab17608

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[U-Boot] [PATCH 1/4] mtd: nand: fsmc: Add BCH4 SW ECC support for SPEAr600
by Stefan Roese 12 Sep '15

12 Sep '15

This patch adds support for 4-bit ECC BCH4 for the SPEAr600 SoC. This can be used by boards equipped with a NAND chip that requires 4-bit ECC strength. The SPEAr600 HW ECC only supports 1-bit ECC strength. To enable SW BCH4, you need to specify this in your config header: And use the command "nandecc bch4" to select this ECC scheme upon runtime. Tested on SPEAr600 x600 board. Signed-off-by: Stefan Roese <sr(a)denx.de> Cc: Scott Wood <scottwood(a)freescale.com> Cc: Viresh Kumar <viresh.kumar(a)linaro.org> --- drivers/mtd/nand/fsmc_nand.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index 567eff0..19f5526 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -13,6 +13,7 @@ #include <asm/io.h> #include <linux/bitops.h> #include <linux/err.h> +#include <linux/mtd/nand_bch.h> #include <linux/mtd/nand_ecc.h> #include <linux/mtd/fsmc_nand.h> #include <asm/arch/hardware.h> @@ -390,6 +391,45 @@ static int fsmc_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, return 0; } +#ifndef CONFIG_SPL_BUILD +/* + * fsmc_nand_switch_ecc - switch the ECC operation between different engines + * + * @eccstrength - the number of bits that could be corrected + * (1 - HW, 4 - SW BCH4) + */ +int __maybe_unused fsmc_nand_switch_ecc(uint32_t eccstrength) +{ + struct nand_chip *nand; + struct mtd_info *mtd; + int err = 0; + + mtd = &nand_info[nand_curr_device]; + nand = mtd->priv; + + /* Setup the ecc configurations again */ + if (eccstrength == 1) { + nand->ecc.mode = NAND_ECC_HW; + nand->ecc.bytes = 3; + nand->ecc.strength = 1; + nand->ecc.layout = &fsmc_ecc1_layout; + nand->ecc.correct = nand_correct_data; + } else { + nand->ecc.mode = NAND_ECC_SOFT_BCH; + nand->ecc.calculate = nand_bch_calculate_ecc; + nand->ecc.correct = nand_bch_correct_data; + nand->ecc.bytes = 7; + nand->ecc.strength = 4; + nand->ecc.layout = NULL; + } + + /* Update NAND handling after ECC mode switch */ + err = nand_scan_tail(mtd); + + return err; +} +#endif /* CONFIG_SPL_BUILD */ + int fsmc_nand_init(struct nand_chip *nand) { static int chip_nr; -- 2.5.1

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[U-Boot] [PATCH v2 0/3] ti_armv7_common: env: Use partuuid for detecting mmc root fs
by Lokesh Vutla 12 Sep '15

12 Sep '15

This patch series defines common mmc args for all TI platforms. Also uses partuuid for detecting root fs. Lokesh Vutla (3): ti_omap4_common: use ext4 fs as default. ti_armv7_common: env: Consolidate MMC args ti_armv7_common: env: Use partuuid for detecting mmc root fs include/configs/am335x_evm.h | 10 ++-------- include/configs/am43xx_evm.h | 10 ++-------- include/configs/ti_armv7_common.h | 9 +++++++++ include/configs/ti_omap4_common.h | 12 +++--------- include/configs/ti_omap5_common.h | 11 ++--------- 5 files changed, 18 insertions(+), 34 deletions(-) -- 2.1.4

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[U-Boot] [PATCH] ARM: DRA7: emif: Fix disabling/enabling of refreshes
by Lokesh Vutla 12 Sep '15

12 Sep '15

clrsetbits_le32/clrbits_le32 takes mask of the bits as input that are needed to be set/clear. But emif driver passes the shift of the bits. Fixing it here. Reported-by: Mark Mckeown <m-mckeown(a)ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla(a)ti.com> --- arch/arm/cpu/armv7/omap-common/emif-common.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/cpu/armv7/omap-common/emif-common.c b/arch/arm/cpu/armv7/omap-common/emif-common.c index f5b22f6..bf7bf26 100644 --- a/arch/arm/cpu/armv7/omap-common/emif-common.c +++ b/arch/arm/cpu/armv7/omap-common/emif-common.c @@ -294,8 +294,8 @@ static void dra7_ddr3_leveling(u32 base, const struct emif_regs *regs) EMIF_REG_PHY_FIFO_WE_IN_MISALINED_CLR); /* Disable refreshed before leveling */ - clrsetbits_le32(&emif->emif_sdram_ref_ctrl, EMIF_REG_INITREF_DIS_SHIFT, - EMIF_REG_INITREF_DIS_SHIFT); + clrsetbits_le32(&emif->emif_sdram_ref_ctrl, EMIF_REG_INITREF_DIS_MASK, + EMIF_REG_INITREF_DIS_MASK); /* Start Full leveling */ writel(DDR3_FULL_LVL, &emif->emif_rd_wr_lvl_ctl); @@ -309,7 +309,7 @@ static void dra7_ddr3_leveling(u32 base, const struct emif_regs *regs) } /* Enable refreshes after leveling */ - clrbits_le32(&emif->emif_sdram_ref_ctrl, EMIF_REG_INITREF_DIS_SHIFT); + clrbits_le32(&emif->emif_sdram_ref_ctrl, EMIF_REG_INITREF_DIS_MASK); debug("HW leveling success\n"); /* -- 2.1.4

2 1

[U-Boot] [PATCH] lpc32xx: remove duplicated DMA_CLK_ENABLE bit definition
by Vladimir Zapolskiy 12 Sep '15

12 Sep '15

Because there is an originally defined CLK_DMA_ENABLE macro in clk.h, no reason to add another DMA_CLK_ENABLE macro with the same value. Remove DMA_CLK_ENABLE, since it does not follow naming convention from the code, this implies renaming of DMA_CLK_ENABLE to CLK_DMA_ENABLE in lpc32xx/devices.c file. Signed-off-by: Vladimir Zapolskiy <vz(a)mleia.com> --- The change fixes a missed review comment from https://patchwork.ozlabs.org/patch/505602/ arch/arm/cpu/arm926ejs/lpc32xx/devices.c | 3 +-- arch/arm/include/asm/arch-lpc32xx/clk.h | 3 --- 2 files changed, 1 insertion(+), 5 deletions(-) diff --git a/arch/arm/cpu/arm926ejs/lpc32xx/devices.c b/arch/arm/cpu/arm926ejs/lpc32xx/devices.c index d9fa280..b1c3f8f 100644 --- a/arch/arm/cpu/arm926ejs/lpc32xx/devices.c +++ b/arch/arm/cpu/arm926ejs/lpc32xx/devices.c @@ -44,8 +44,7 @@ void lpc32xx_uart_init(unsigned int uart_id) void lpc32xx_dma_init(void) { /* Enable DMA interface */ - writel(DMA_CLK_ENABLE, &clk->dmaclk_ctrl); - + writel(CLK_DMA_ENABLE, &clk->dmaclk_ctrl); } void lpc32xx_mac_init(void) diff --git a/arch/arm/include/asm/arch-lpc32xx/clk.h b/arch/arm/include/asm/arch-lpc32xx/clk.h index d21310e..303ff1c 100644 --- a/arch/arm/include/asm/arch-lpc32xx/clk.h +++ b/arch/arm/include/asm/arch-lpc32xx/clk.h @@ -158,9 +158,6 @@ struct clk_pm_regs { #define CLK_NAND_SLC_SELECT (1 << 2) #define CLK_NAND_MLC_INT (1 << 5) -/* DMA Clock Control Register bits */ -#define DMA_CLK_ENABLE (1 << 0) - /* SSP Clock Control Register bits */ #define CLK_SSP0_ENABLE_CLOCK (1 << 0) -- 2.1.4

3 2

[U-Boot] [PATCH] driver: misc: correct Kconfig entry
by Peng Fan 12 Sep '15

12 Sep '15

Should use FSL_SEC_MON, not CONFIG_FSL_SEC_MON as Kconfig entry. Signed-off-by: Peng Fan <Peng.Fan(a)freescale.com> Cc: Simon Glass <sjg(a)chromium.org> Cc: Masahiro Yamada <yamada.m(a)jp.panasonic.com> Cc: Fabio Estevam <fabio.estevam(a)freescale.com> Cc: York Sun <yorksun(a)freescale.com> Cc: Stefan Roese <sr(a)denx.de> Cc: Tom Rini <trini(a)konsulko.com> --- drivers/misc/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index 3b7f76a..94af6a4 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -53,7 +53,7 @@ config CROS_EC_SPI provides a faster and more robust interface than I2C but the bugs are less interesting. -config CONFIG_FSL_SEC_MON +config FSL_SEC_MON bool "Enable FSL SEC_MON Driver" help Freescale Security Monitor block is responsible for monitoring -- 1.8.4

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[U-Boot] [PATCH] board/BuR: simplify default IP-setup on B&R boards.
by Hannes Schmelzer 12 Sep '15

12 Sep '15

To simplify and having a common default IP-setup on all B&R boards we introduce an environment variable "brdefaultip" which does following. Test if ${ipaddr} is empty, if yes it set's up some defaults: - ipaddr : 192.168.60.1 - netmask : 255.255.255.0 - gatewayip: 192.168.60.254 - serverip : 192.168.60.254 This environment is ran from CONFIG_PREBOOT. All other "tricks" are dropped. Signed-off-by: Hannes Schmelzer <oe5hpm(a)oevsv.at> --- board/BuR/kwb/board.c | 10 ---------- include/configs/bur_am335x_common.h | 12 +++++------- 2 files changed, 5 insertions(+), 17 deletions(-) diff --git a/board/BuR/kwb/board.c b/board/BuR/kwb/board.c index 640aca4..039ec20 100644 --- a/board/BuR/kwb/board.c +++ b/board/BuR/kwb/board.c @@ -283,16 +283,6 @@ int board_late_init(void) } /* setup vxworks bootline */ char *vxworksbootline = (char *)VXWORKS_BOOTLINE; - - /* setup default IP, in case if there is nothing in environment */ - if (!getenv("ipaddr")) { - setenv("ipaddr", "192.168.60.1"); - setenv("netmask", "255.255.255.0"); - setenv("serverip", "192.168.60.254"); - setenv("gatewayip", "192.168.60.254"); - puts("net: had no IP! made default setup.\n"); - } - sprintf(vxworksbootline, "%s h=%s e=%s:%s g=%s %s o=0x%08x;0x%08x;0x%08x;0x%08x", DEFAULT_BOOTLINE, diff --git a/include/configs/bur_am335x_common.h b/include/configs/bur_am335x_common.h index 838ef1f..c696092 100644 --- a/include/configs/bur_am335x_common.h +++ b/include/configs/bur_am335x_common.h @@ -14,18 +14,16 @@ /* ------------------------------------------------------------------------- */ #define BUR_COMMON_ENV \ "usbscript=usb start && fatload usb 0 0x80000000 usbscript.img && source\0" \ -"defaultip=192.168.60.253\0" \ -"defaultsip=192.168.60.254\0" \ +"brdefaultip=if test -r ${ipaddr}; then; else" \ +" setenv ipaddr 192.168.60.1; setenv serverip 192.168.60.254;" \ +" setenv gatewayip 192.168.60.254; setenv netmask 255.255.255.0; fi;\0" \ "netconsole=echo switching to network console ...; " \ -"if dhcp; then setenv ncip ${serverip}; " \ -"else " \ -"setenv ncip 192.168.60.254; setenv serverip 192.168.60.254; " \ -"setenv gatewayip 192.168.60.254; setenv ipaddr 192.168.60.1; " \ -"fi; " \ +"if dhcp; then; else run brdefaultip; fi; setenv ncip ${serverip}; " \ "setcurs 1 9; lcdputs myip; setcurs 10 9; lcdputs ${ipaddr};" \ "setcurs 1 10;lcdputs serverip; setcurs 10 10; lcdputs ${serverip};" \ "setenv stdout nc;setenv stdin nc;setenv stderr nc\0" +#define CONFIG_PREBOOT "run brdefaultip" #define CONFIG_CMD_TIME #define CONFIG_SYS_GENERIC_BOARD -- 1.9.1

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[U-Boot] [PATCH] fat: handle paths that include ../
by Stephen Warren 12 Sep '15

12 Sep '15

The FAT code contains a special case to parse the root directory. This is needed since the root directory location/layout on disk is special cased for FAT12/16. In particular, the location and size of the FAT12/16 root directory is hard-coded and contiguous, whereas all FAT12/16 non-root directories, and all FAT32 directories, are stored in a non-contiguous fashion, with the layout represented by a linked-list of clusters in the FAT. If a file path contains ../ (for example /extlinux/../bcm2835-rpi-cm.dtb), it is possible to need to parse the root directory for the first element in the path (requiring application of the special case), then a sub- directory (in the general way), then re-parse the root directory (again requiring the special case). However, the current code in U-Boot only applies the special case for the very first path element, and never for any later path element. When reparsing the root directory without applying the special case, any file in a sector (or cluster?) other than the first sector/cluster of the root directory will not be found. This change modifies the non-root-dir-parsing loop of do_fat_read_at() to detect if it's walked back to the root directory, and if so, jumps back to the special case code that handles parsing of the root directory. This change was tested using sandbox by executing: ./u-boot -c "host bind 0 ../sd-p1.bin; ls host 0:0" ./u-boot -c "host bind 0 ../sd-p1.bin; ls host 0:0 /" ./u-boot -c "host bind 0 ../sd-p1.bin; ls host 0:0 /extlinux" ./u-boot -c "host bind 0 ../sd-p1.bin; ls host 0:0 /extlinux/" ./u-boot -c "host bind 0 ../sd-p1.bin; ls host 0:0 /extlinux/.." ./u-boot -c "host bind 0 ../sd-p1.bin; ls host 0:0 /extlinux/../" ./u-boot -c "host bind 0 ../sd-p1.bin; ls host 0:0 /extlinux/../backup" ./u-boot -c "host bind 0 ../sd-p1.bin; ls host 0:0 /extlinux/../backup/" ./u-boot -c "host bind 0 ../sd-p1.bin; ls host 0:0 /extlinux/../backup/.." ./u-boot -c "host bind 0 ../sd-p1.bin; ls host 0:0 /extlinux/../backup/../" ./u-boot -c "host bind 0 ../sd-p1.bin; load host 0:0 0 /bcm2835-rpi-cm.dtb" ./u-boot -c "host bind 0 ../sd-p1.bin; load host 0:0 0 /extlinux/../bcm2835-rpi-cm.dtb" ./u-boot -c "host bind 0 ../sd-p1.bin; load host 0:0 0 /backup/../bcm2835-rpi-cm.dtb" ./u-boot -c "host bind 0 ../sd-p1.bin; load host 0:0 0 /extlinux/..backup/../bcm2835-rpi-cm.dtb" ./u-boot -c "host bind 0 ../sd-p1.bin; load host 0:0 0 /extlinux/../backup/../bcm2835-rpi-cm.dtb" (/extlinux and /backup are in different sectors so trigger some different cases, and bcm2835-rpi-cm.dtb is in a sector of the root directory other than the first). In all honesty, this change is a bit of a hack, using goto and all. However, as demonstrated above it appears to work well in practice, is quite minimal, likely doesn't introduce any risk of regressions, and hopefully doesn't introduce any maintenance issues. The correct fix would be to collapse the root and non-root loops in do_fat_read_at() and get_dentfromdir() into a single loop that has a small special-case when moving from one sector to the next, to handle the layout difference of root/non-root directories. AFAIK all other aspects of directory parsing are identical. However, that's a much larger change which needs significantly more thought before it's implemented. Signed-off-by: Stephen Warren <swarren(a)wwwdotorg.org> --- fs/fat/fat.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/fs/fat/fat.c b/fs/fat/fat.c index bccc3e3ed8fd..a863644d6480 100644 --- a/fs/fat/fat.c +++ b/fs/fat/fat.c @@ -895,6 +895,7 @@ int do_fat_read_at(const char *filename, loff_t pos, void *buffer, strcpy(fnamecopy, filename); downcase(fnamecopy); +root_reparse: if (*fnamecopy == '\0') { if (!dols) goto exit; @@ -1180,6 +1181,34 @@ rootdir_done: if (isdir && !(dentptr->attr & ATTR_DIR)) goto exit; + /* + * If we are looking for a directory, and found a directory + * type entry, and the entry is for the root directory (as + * denoted by a cluster number of 0), jump back to the start + * of the function, since at least on FAT12/16, the root dir + * lives in a hard-coded location and needs special handling + * to parse, rather than simply following the cluster linked + * list in the FAT, like other directories. + */ + if (isdir && (dentptr->attr & ATTR_DIR) && !START(dentptr)) { + /* + * Modify the filename to remove the prefix that gets + * back to the root directory, so the initial root dir + * parsing code can continue from where we are without + * confusion. + */ + strcpy(fnamecopy, nextname ?: ""); + /* + * Set up state the same way as the function does when + * first started. This is required for the root dir + * parsing code operates in its expected environment. + */ + subname = ""; + cursect = mydata->rootdir_sect; + isdir = 0; + goto root_reparse; + } + if (idx >= 0) subname = nextname; } -- 1.9.1

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[U-Boot] [PATCH] git-mailrc: add Alexey as ARC maintainer
by Masahiro Yamada 12 Sep '15

12 Sep '15

It's easier to Cc him on ARC-releated patches. Signed-off-by: Masahiro Yamada <yamada.masahiro(a)socionext.com> --- doc/git-mailrc | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/doc/git-mailrc b/doc/git-mailrc index ddc4513..1335612 100644 --- a/doc/git-mailrc +++ b/doc/git-mailrc @@ -12,6 +12,7 @@ alias u-boot uboot # things simple and easy to look up/coordinate. alias aaribaud Albert Aribaud <albert.u.boot(a)aribaud.net> alias abiessmann Andreas Bießmann <andreas.devel(a)googlemail.com> +alias abrodkin Alexey Brodkin <alexey.brodkin(a)synopsys.com> alias afleming Andy Fleming <afleming(a)gmail.com> alias ag Anatolij Gustschin <agust(a)denx.de> alias alisonwang Alison Wang <alison.wang(a)freescale.com> @@ -50,9 +51,11 @@ alias vapier Mike Frysinger <vapier(a)gentoo.org> alias wd Wolfgang Denk <wd(a)denx.de> # Architecture aliases -alias arch arm, avr32, bfin, m68k, microblaze, mips, nds32, nios2, powerpc, sandbox, superh, sparc, x86 +alias arch arc, arm, avr32, bfin, m68k, microblaze, mips, nds32, nios2, powerpc, sandbox, superh, sparc, x86 alias arches arch +alias arc uboot, abrodkin + alias arm uboot, aaribaud alias at91 uboot, abiessmann alias davinci ti -- 1.9.1

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