January 2013 - U-Boot

[U-Boot] [RFC/PATCH 0/4] BCH8 support for OMAP3
by Andreas Bießmann 08 Apr '13

08 Apr '13

This RFC series implements BCH8 for OMAP3 as provided by linux kernel in commit 0e618ef0a6a33cf7ef96c2c824402088dd8ef48c. This series is heavily influenced by Ilyas series 'NAND support for AM33XX' thus could share some code. I have managed to load kernel from an ubifs written by the kernel driver, but is far away from tested thoroughly. Cause my NAND device 'NAND device: Manufacturer ID: 0x2c, Chip ID: 0xbc (Micron NAND 512MiB 1,8V 16-bit)' does support 1bit ECC for first sector if erase is less than 1000, the rest requires 4bit ECC. Therefore the SPL needs to support BCH, the impact is about 9k for the SPL. Andreas Bießmann (4): omap3/cpu.h: add BCH support omap3/omap_gpmc.h: add ooblayout for BCH8 as in kernel omap_gpmc: add support for hw assisted BCH8 tricorder: enable hw assisted BCH8 in SPL and u-boot arch/arm/cpu/armv7/omap3/board.c | 8 +- arch/arm/include/asm/arch-omap3/cpu.h | 6 + arch/arm/include/asm/arch-omap3/omap_gpmc.h | 12 ++ drivers/mtd/nand/omap_gpmc.c | 216 ++++++++++++++++++++++++++- include/configs/tricorder.h | 10 +- lib/Makefile | 3 +- 6 files changed, 248 insertions(+), 7 deletions(-) -- 1.7.10.4

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[U-Boot] [PATCH] powerpc/lib: fix unsafe register handling in wait_ticks
by Mats Kärrman 08 Apr '13

08 Apr '13

If watchdog is enabled, the arch/powerpc/lib/ticks.S::wait_ticks() function calls the function specified by the WATCHDOG_RESET macro. The wait_ticks function depends on the registers r0, r6 and r7 being preserved however that is not guaranteed, e.g. if the reset function is a C function this will probably overwrite r0 and cause an endless loop. The following patch changes to using r14+r15 instead of r6+r7 (to resemble what would have been generated by a C compiler) and saves all necessary registers on the stack. The patch has been tested on a custom MPC5125 based machine using the 512x powerpc architecture. Signed-off-by: Mats Karrman <mats.karrman(a)tritech.se> Cc: Wolfgang Denk <wd(a)denx.de> Acked-by: Joakim Tjernlund <joakim.tjernlund(a)transmode.se> --- arch/powerpc/lib/ticks.S | 17 +++++++++++------ 1 files changed, 11 insertions(+), 6 deletions(-) diff --git a/arch/powerpc/lib/ticks.S b/arch/powerpc/lib/ticks.S index 1781039..63114bb 100644 --- a/arch/powerpc/lib/ticks.S +++ b/arch/powerpc/lib/ticks.S @@ -50,19 +50,24 @@ wait_ticks: stwu r1, -16(r1) mflr r0 /* save link register */ stw r0, 20(r1) /* Use r0 or GDB will be unhappy */ - mr r7, r3 /* save tick count */ + stw r14, 12(r1) /* save used registers */ + stw r15, 8(r1) + mr r14, r3 /* save tick count */ bl get_ticks /* Get start time */ /* Calculate end time */ - addc r7, r4, r7 /* Compute end time lower */ - addze r6, r3 /* and end time upper */ + addc r14, r4, r14 /* Compute end time lower */ + addze r15, r3 /* and end time upper */ WATCHDOG_RESET /* Trigger watchdog, if needed */ 1: bl get_ticks /* Get current time */ - subfc r4, r4, r7 /* Subtract current time from end time */ - subfe. r3, r3, r6 + subfc r4, r4, r14 /* Subtract current time from end time */ + subfe. r3, r3, r15 bge 1b /* Loop until time expired */ - mtlr r0 /* restore link register */ + lwz r15, 8(r1) /* restore saved registers */ + lwz r14, 12(r1) + lwz r0, 20(r1) addi r1,r1,16 + mtlr r0 blr -- 1.7.1

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[U-Boot] [PATCH] kirkwood_nand: allow usage of NAND_ECC_SOFT_BCH
by Holger Brunck 08 Apr '13

08 Apr '13

From: Gerlando Falauto <gerlando.falauto(a)keymile.com> If CONFIG_NAND_ECC_BCH is set use 4-bit error correction code instead of the 1-bit error correction code on the NAND device. Signed-off-by: Gerlando Falauto <gerlando.falauto(a)keymile.com> Signed-off-by: Holger Brunck <holger.brunck(a)keymile.com> cc: Valentin Longchamp <valentin.longchamp(a)keymile.com> cc: Prafulla Wadaskar <prafulla(a)marvell.com> --- drivers/mtd/nand/kirkwood_nand.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/mtd/nand/kirkwood_nand.c b/drivers/mtd/nand/kirkwood_nand.c index bdab5aa..0a99a10 100644 --- a/drivers/mtd/nand/kirkwood_nand.c +++ b/drivers/mtd/nand/kirkwood_nand.c @@ -74,7 +74,11 @@ void kw_nand_select_chip(struct mtd_info *mtd, int chip) int board_nand_init(struct nand_chip *nand) { nand->options = NAND_COPYBACK | NAND_CACHEPRG | NAND_NO_PADDING; +#if defined(CONFIG_NAND_ECC_BCH) + nand->ecc.mode = NAND_ECC_SOFT_BCH; +#else nand->ecc.mode = NAND_ECC_SOFT; +#endif nand->cmd_ctrl = kw_nand_hwcontrol; nand->chip_delay = 40; nand->select_chip = kw_nand_select_chip; -- 1.7.1

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[U-Boot] [PATCH] Add U_BOOT_TIMESTAMP definition
by Matt Sealey 05 Apr '13

05 Apr '13

This gives us a string like "20120822150855" which encodes the build time. This allows automated version checking and flashing of U-Boot to be performed, for example, in boot.scr files (or scripting in general). Signed-off-by: Matt Sealey <matt(a)genesi-usa.com> Cc: Stefano Babic <sbabic(a)denx.de> Cc: Marek Vasut <marex(a)denx.de> --- Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/Makefile b/Makefile index 1df4c1d..c042206 100644 --- a/Makefile +++ b/Makefile @@ -664,6 +664,7 @@ $(TIMESTAMP_FILE): @mkdir -p $(dir $(TIMESTAMP_FILE)) @LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"' > $@.tmp @LC_ALL=C date +'#define U_BOOT_TIME "%T"' >> $@.tmp + @LC_ALL=C date +'#define U_BOOT_TIMESTAMP "%Y%m%d%H%M%S"' >> $@.tmp @cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@ easylogo env gdb: -- 1.7.9.5

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[U-Boot] [PATCH 00/10] common.lcd: remove globals and cleanup
by Jeroen Hofstee 29 Mar '13

29 Mar '13

As mentioned in http://lists.denx.de/pipermail/u-boot/2013-January/143459.html there does not seem to be a good reason why the frame buffer driver provide the variables for the lcd internal logic. So lets just remove it. If there is any good reason for a framebuffer driver to "call up" it should do so by a function call and not change the lcd its internal state (and there is actually none doing so at the moment). This patchset first removes unused drivers and places drivers useing common/lcd.c in drivers/video. Then removes the unneeded globals and thereafter finishes with some cleanups. This patch goes after http://patchwork.ozlabs.org/patch/209692/ "common/lcd.c: cleanup use of global variables" Jeroen Hofstee (10): lcd, amba: remove this frame buffer driver since it is not used lcd, tegra: remove unused cursor functions lcd, mpc8xx: move the mpc8xx frame buffer driver to drivers/video lcd, pxafb: move the pxafb to drivers/video common/lcd.c: cleanup use of global variables common/lcd.c: remove global lcd_base common/lcd: cosmetic: clean up a bit lcd, fb: cleanup, remove prototypes already in lcd.h and unused code api/api_display: use the getters for console size info common/lcd.c: move the macro's to the c file api/api_display.c | 4 +- arch/arm/cpu/pxa/Makefile | 1 - arch/arm/cpu/pxa/pxafb.c | 650 -------------------------------------- arch/powerpc/cpu/mpc8xx/Makefile | 1 - arch/powerpc/cpu/mpc8xx/lcd.c | 618 ------------------------------------ board/mcc200/lcd.c | 21 +- common/lcd.c | 117 ++++--- drivers/video/Makefile | 3 +- drivers/video/amba.c | 77 ----- drivers/video/atmel_hlcdfb.c | 8 - drivers/video/atmel_lcdfb.c | 8 - drivers/video/exynos_fb.c | 14 +- drivers/video/mpc8xx_lcd.c | 564 +++++++++++++++++++++++++++++++++ drivers/video/pxa_lcd.c | 609 +++++++++++++++++++++++++++++++++++ drivers/video/tegra.c | 64 +--- include/configs/R360MPI.h | 1 + include/configs/RBC823.h | 1 + include/configs/RPXlite_DW.h | 1 + include/configs/RRvision.h | 4 +- include/configs/TQM823L.h | 1 + include/configs/TQM823M.h | 1 + include/configs/lubbock.h | 1 + include/configs/lwmon.h | 1 + include/configs/palmld.h | 1 + include/configs/palmtc.h | 1 + include/configs/pxa255_idp.h | 1 + include/configs/svm_sc8xx.h | 1 + include/configs/v37.h | 1 + include/configs/zipitz2.h | 1 + include/lcd.h | 71 +---- 30 files changed, 1280 insertions(+), 1567 deletions(-) delete mode 100644 arch/arm/cpu/pxa/pxafb.c delete mode 100644 arch/powerpc/cpu/mpc8xx/lcd.c delete mode 100644 drivers/video/amba.c create mode 100644 drivers/video/mpc8xx_lcd.c create mode 100644 drivers/video/pxa_lcd.c -- 1.7.9.5

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[U-Boot] global variables from comon/lcd.c
by Jeroen Hofstee 29 Mar '13

29 Mar '13

Hi, While looking at the common/lcd.c I fail to understand why it declares and uses global variables like lcd_color_fg, lcd_color_color_bg, lcd_base and relies on the drivers / boards to provide them, leading to code duplication. It also provides getters / setters for some of these variables. To me it seems more logical to have these variables in lcd.c itself. This construction has been around since at least 2004 though, so I tend to think I am missing something. Does someone know the reason why these variables are not part of lcd.c itself? Regards, Jeroen

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[U-Boot] [PATCH 0/2] ANSI terminal Bootmenu
by Pali Rohár 29 Mar '13

29 Mar '13

This patch series adds ANSI terminal Bootmenu command. It use generic menu code for creating menu structures, but use own functions for drawing menu on ANSI terminal. First patch modify generic menu code for using other functions for printing and choosing menu entry, second patch is bootmenu command itself. Pali Rohár (2): menu: Added support to use user defined functions New command bootmenu: ANSI terminal Boot Menu support board/ait/cam_enc_4xx/cam_enc_4xx.c | 5 +- common/Makefile | 1 + common/cmd_bootmenu.c | 446 +++++++++++++++++++++++++++++++++++ common/cmd_pxe.c | 3 +- common/menu.c | 43 ++-- doc/README.bootmenu | 61 +++++ include/common.h | 20 ++ include/config_cmd_all.h | 1 + include/menu.h | 6 +- 9 files changed, 566 insertions(+), 20 deletions(-) create mode 100644 common/cmd_bootmenu.c create mode 100644 doc/README.bootmenu -- 1.7.9.5

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[U-Boot] [PATCH 0/2] ARM: mmu: Set domain permissions to client access
by R Sricharan 28 Mar '13

28 Mar '13

Currently for ARM based cpu's, mmu pagetable attributes are set with manager permissions for all 4GB address space. Because of this the 'execute never (XN)' permission is never checked on read sensitive regions which results in speculative aborts. This series changes the domain permissions of the full 4GB space to client access for OMAP socs. This avoids all the speculative aborts that are currently seen on OMAP5 secure devices. Tested on OMAP5 SDP (HS) soc. This series depends on [1] the patch sent by <Vincent Stehle <v-stehle(a)ti.com> [1] http://www.mail-archive.com/u-boot@lists.denx.de/msg102709.html R Sricharan (2): ARM: mmu: Introduce weak dram_bank_setup function ARM: mmu: Set domain permissions to client access arch/arm/cpu/armv7/cache_v7.c | 3 ++ arch/arm/cpu/armv7/omap-common/hwinit-common.c | 35 ++++++++++++++++++++++++ arch/arm/include/asm/cache.h | 1 + arch/arm/include/asm/system.h | 14 ++++++++++ arch/arm/lib/cache-cp15.c | 13 ++++++++- 5 files changed, 65 insertions(+), 1 deletion(-) -- 1.7.9.5

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[U-Boot] [PATCH 0/4] EXYNOS5: Enable dwmmc
by Amar 27 Mar '13

27 Mar '13

This patch set enables the dwmmc for Exynos5250 on SMDK5250. Also does the required driver changes. This patch set is based on: "EXYNOS: mmc: support DesignWare Controller for Samsung-SoC" "Exynos: clock: support get_mmc_clk for exynos" Amar (4): MMC: DWMMC: Modified fifo size computation MMC: EXYNOS: Added call back function for clock get EXYNOS: CLOCK: Initialised the local variable SMDK5250: Initialise and enable dwmmc channels arch/arm/cpu/armv7/exynos/clock.c | 4 ++-- board/samsung/smdk5250/smdk5250.c | 32 ++++++++++++++++++++++++++------ drivers/mmc/dw_mmc.c | 2 ++ drivers/mmc/exynos_dw_mmc.c | 13 ++++++++++++- include/configs/smdk5250.h | 4 ++-- 5 files changed, 44 insertions(+), 11 deletions(-)

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[U-Boot] [PATCH] EXYNOS5: Add L2 Cache Support.
by Rajeshwari Shinde 27 Mar '13

27 Mar '13

This patch set adds L2 Cache Support to EXYNOS. Signed-off-by: Arun Mankuzhi <arun.m(a)samsung.com> Signed-off-by: Rajeshwari Shinde <rajeshwari.s(a)samsung.com> --- arch/arm/cpu/armv7/exynos/soc.c | 37 +++++++++++++++++++++++++++++++++++++ 1 files changed, 37 insertions(+), 0 deletions(-) diff --git a/arch/arm/cpu/armv7/exynos/soc.c b/arch/arm/cpu/armv7/exynos/soc.c index ab65b8d..676a388 100644 --- a/arch/arm/cpu/armv7/exynos/soc.c +++ b/arch/arm/cpu/armv7/exynos/soc.c @@ -23,6 +23,14 @@ #include <common.h> #include <asm/io.h> +#include <asm/system.h> + +enum l2_cache_params { + CACHE_TAG_RAM_SETUP = (1<<9), + CACHE_DATA_RAM_SETUP = (1<<5), + CACHE_TAG_RAM_LATENCY = (2<<6), + CACHE_DATA_RAM_LATENCY = (2<<0) +}; void reset_cpu(ulong addr) { @@ -36,3 +44,32 @@ void enable_caches(void) dcache_enable(); } #endif + +#ifndef CONFIG_SYS_L2CACHE_OFF +/* + * Set L2 cache parameters + */ +static void exynos5_set_l2cache_params(void) +{ + unsigned int val = 0; + + asm volatile("mrc p15, 1, %0, c9, c0, 2\n" : "=r"(val)); + + val |= CACHE_TAG_RAM_SETUP | + CACHE_DATA_RAM_SETUP | + CACHE_TAG_RAM_LATENCY | + CACHE_DATA_RAM_LATENCY; + + asm volatile("mcr p15, 1, %0, c9, c0, 2\n" : : "r"(val)); +} + +/* + * Sets L2 cache related parameters before enabling data cache + */ +void v7_outer_cache_enable(void) +{ + if (cpu_is_exynos5()) + exynos5_set_l2cache_params(); +} +#endif + -- 1.7.4.4

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