May 2016 - U-Boot

[U-Boot] [PATCHv4 1/7] armv8: fsl-layerscape: add i/d-cache enable function to enable_caches
by Zhiqiang Hou 30 May '16

30 May '16

From: Hou Zhiqiang <Zhiqiang.Hou(a)nxp.com> This function assume that the d-cache and MMU has been enabled earlier, so it just created MMU table in main memory. But the assumption is not always correct, for example, the early setup is done in EL3, while enable_caches() is called when the PE has turned into another EL. Define the function mmu_setup() for fsl-layerscape to cover the weak one. Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou(a)nxp.com> --- V4: - no change arch/arm/cpu/armv8/fsl-layerscape/cpu.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c index d939900..672a453 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c @@ -425,15 +425,21 @@ int arch_cpu_init(void) return 0; } +void mmu_setup(void) +{ + final_mmu_setup(); +} + /* - * This function is called from lib/board.c. - * It recreates MMU table in main memory. MMU and d-cache are enabled earlier. - * There is no need to disable d-cache for this operation. + * This function is called from common/board_r.c. + * It recreates MMU table in main memory. */ void enable_caches(void) { - final_mmu_setup(); + mmu_setup(); __asm_invalidate_tlb_all(); + icache_enable(); + dcache_enable(); } #endif -- 2.1.0.27.g96db324

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[U-Boot] [PATCH v3 00/11] ARMv7: PSCI: add PSCI v1.0 support
by macro.wave.z＠gmail.com 30 May '16

30 May '16

From: Hongbo Zhang <hongbo.zhang(a)nxp.com> Previous v2 patch set was sent out for a long time but got no comments, this time I send a v3 with minor updates and with more people in list, they are contributors for Linux kernel PSCI codes. v3 changes: - patch 3/11, re-init the stack pointer to address like start of page instead of page end, because for ARM push operation, the stack pointer is encreased before storing data. - patch 10/11, delete the previous un-implemented cpu_suspend function for ls1 platform, because there is default blank functions for all those are not implemented in specific platform. v2 changes: - re-organize psci_cpu_on_common, this code should be called by each platform's psci_cpu_on, should not be a function calling each psci_cpu_on, all related functions are updated due to this change - update some registers usage, e.g. if r10 is used without push/pop, u-boot cannot launch rt-kernel - update some comments to be clearer, re-organize all patches for easier review - add patch to check already_on or on_pending for LS102XA This patch set contains two parts: ARMv7 PSCI common framework: fix some issues and add v1.0 support NXP (was Freescale) LS102XA: codes enhancement and add v1.0 implementation And this patch set was initially created by Dongsheng Wang. Hongbo Zhang (9): Wang Dongsheng (2): ARMv7: PSCI: update function psci_get_cpu_stack_top ARMv7: PSCI: update the place of saving target PC ARMv7: PSCI: add codes to save context ID for CPU_ON ARMv7: PSCI: factor out reusable psci_cpu_on_common ARMv7: PSCI: add PSCI v1.0 functions skeleton ARMv7: PSCI: ls102xa: check target CPU ID before further operations ARMv7: PSCI: ls102xa: check ALREADY_ON or ON_PENDING for CPU_ON ARMv7: PSCI: ls102xa: add more PSCI v1.0 functions implemention ARMv7: PSCI: ls102xa: move secure text section into OCRAM ARM: PSCI: change PSCI function IDs base and offsets ARM: PSCI: change PSCI related macros definition style arch/arm/cpu/armv7/ls102xa/psci.S | 172 +++++++++++++++++++++++++++-- arch/arm/cpu/armv7/mx7/psci.S | 7 +- arch/arm/cpu/armv7/nonsec_virt.S | 7 ++ arch/arm/cpu/armv7/psci.S | 110 ++++++++++++++++-- arch/arm/cpu/armv7/sunxi/psci_sun6i.S | 8 +- arch/arm/cpu/armv7/sunxi/psci_sun7i.S | 8 +- arch/arm/cpu/armv7/virt-dt.c | 54 ++++++--- arch/arm/include/asm/arch-ls102xa/config.h | 3 +- arch/arm/include/asm/psci.h | 62 ++++++++--- arch/arm/mach-tegra/psci.S | 7 +- board/freescale/ls1021aqds/Makefile | 1 + board/freescale/ls1021aqds/psci.S | 36 ++++++ board/freescale/ls1021atwr/Makefile | 1 + board/freescale/ls1021atwr/psci.S | 28 +++++ include/configs/ls1021aqds.h | 3 + include/configs/ls1021atwr.h | 3 + 16 files changed, 443 insertions(+), 67 deletions(-) create mode 100644 board/freescale/ls1021aqds/psci.S create mode 100644 board/freescale/ls1021atwr/psci.S -- 2.1.4

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[U-Boot] [verified-boot] Multiple levels of signing keys
by Teddy Reed 30 May '16

30 May '16

Hello all, I'm looking to support "multiple levels" of keys within u-boot's verified boot. I need something similar to UEFI's key enrollment key (KEK) and db/dbx model such that I can support on-line signing of new kernels/rootfs/configurations. To make this work we need a KEK that is not online (kept in a safe), that can be used to sign expirations (revocations) of on-line signing keys in the case of compromise or private key reveals. I know Chrome's Coreboot verified boot model supports this, wondering if there's any staged / WIP for u-boot? Off the top of my head I'd imagine this requires extending the FIT to include sets of public keys and a blacklist of keys and expired or bad kernel/rootfs/etc hashes. Then either extending the boot code to inspect multiple FITs or extending mkimage to combine multiple sources to amalgamate a FIT containing the PK-signed set of keys + hashes and the on-line key-signed kernels/rootfs/configurations. P.S. This may be strongly linked to the need for a TPM to prevent rollbacks. But as far as I can tell, the two features are distinct and a TPM is not completely required for a multi-level key approach to signing FITs. Thanks! -- Teddy Reed V

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[U-Boot] u-boot hangs after enabling secured boot : gumstix-overo
by Arun Kuttiyara Varghese 29 May '16

29 May '16

Hi All, I was trying to enable the secured boot in u-boot for gumstix overo storm. based on http://www.denx-cs.de/doku/?q=m28verifiedboot After I prepared by SD cards, u-boot is not able to boot and gives the below error message. U-Boot SPL 2015.07 (Apr 28 2016 - 13:53:06) SPL: Please implement spl_start_uboot() for your board SPL: Direct Linux boot not active! reading u-boot.img spl_load_image_fat: error reading image u-boot.img, err - -1 SPL: Please implement spl_start_uboot() for your board SPL: Direct Linux boot not active! Failed to mount ext2 filesystem... spl_load_image_ext: ext4fs mount err - 0 ================ This is the u-boot.dts file that I am using. /dts-v1/; / { model = "Keys"; signature { key-dev { required = "conf"; algo = "sha1,rsa2048"; key-name-hint = "my_key"; }; }; }; compilation using : dtc -p 0x1000 /work/u-boot.dts -O dtb -o /work/u-boot.dtb And these are the conf that I have added to include/configs/omap3_overo.h #define CONFIG_OF_CONTROL #define CONFIG_OF_SEPARATE #define CONFIG_FIT #define CONFIG_FIT_SIGNATURE #define CONFIG_RSA #define CONFIG_FIT_VERBOSE and I am compiling u-boot by using below line : make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- EXT_DTB=/work/u-boot.dtb all -j4 Please let me know if you have any ideas on how to debug this issue. Thanks & Regards, Arun

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[U-Boot] Release cycle thoughts
by Tom Rini 29 May '16

29 May '16

Hey all, So, when I said a few months back that we would try doing a 2 month release cycle, I planned things out until the v2016.07 release, since that coincided with the old schedule. As I was looking at the ReleaseCycle page today I didn't want to give anyone the wrong impression so I've added in v2016.09 and v2016.11 (and updated the MW for v2016.07 since 05 was late). At this point I'm happy with the 2 month cycle. Does anyone object and think we should go back to 3 months? If no one objects there, I'm pondering going up to monthly for 2017 with release generally the first Monday of the month, RCs otherwise on Monday. Shorten the merge window to that first week. But would make planning time easier for everyone. -- Tom

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[U-Boot] can the last traces of "bcopy" be removed?
by Robert P. J. Day 29 May '16

29 May '16

just noticed that this is all that's left of "bcopy": $ grep -rw bcopy * arch/powerpc/lib/ppcstring.S: .globl bcopy arch/powerpc/lib/ppcstring.S:bcopy: arch/microblaze/include/asm/string.h:extern void bcopy (const char *, char *, int); include/linux/string.h:char *bcopy(const char *src, char *dest, int count); lib/string.c: * bcopy - Copy one area of memory to another lib/string.c: * memcpy() is the standard, bcopy() is a legacy BSD function. lib/string.c:char * bcopy(const char * src, char * dest, int count) $ so, really, no actual usage, and even the microblaze string.h file contains: #if 0 #define __HAVE_ARCH_BCOPY #define __HAVE_ARCH_MEMCPY #define __HAVE_ARCH_MEMSET #define __HAVE_ARCH_MEMMOVE extern void *memcpy (void *, const void *, __kernel_size_t); extern void bcopy (const char *, char *, int); extern void *memset (void *, int, __kernel_size_t); extern void *memmove (void *, const void *, __kernel_size_t); #endif so unless i'm misreading, can't bcopy() be tossed entirely while no one's using it and before anyone gets a chance to resurrect it? :-) rday -- ======================================================================== Robert P. J. Day Ottawa, Ontario, CANADA http://crashcourse.ca Twitter: http://twitter.com/rpjday LinkedIn: http://ca.linkedin.com/in/rpjday ========================================================================

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[U-Boot] a question about u-boot-2015.04 -for zynq
by 赵延洲 29 May '16

29 May '16

execuse me : I am a fresh bird. I want to use xilinx zynq 7020 chip. our company made a board like zynq_zed board. but the uart1 isn't output from the chip .instead ,the uart0 is out. in the uboot version 2013.4,we can change the /include/configs/zynq_zed.h will "CONFIG_ZYNQ_SERIAL_UART0",but this is invalid，I wanted to find the way for a long time .and in the net, there is no useful answer , can you tell me ? thanks a lot waiting for your answer. zyz

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[U-Boot] [PATCH v2 14/18] at91: mtd: nand: Add dev_warn() to correct build error in driver
by Simon Glass 28 May '16

28 May '16

The code does not compile if ECC is enabled. Signed-off-by: Andre Renaud <andre(a)designa-electronics.com> Signed-off-by: Simon Glass <sjg(a)chromium.org> --- Changes in v2: None drivers/mtd/nand/atmel_nand.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index 8fac824..15958cb 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -20,6 +20,8 @@ #include <watchdog.h> #include <linux/mtd/nand_ecc.h> +#define dev_warn(dev, msg...) + #ifdef CONFIG_ATMEL_NAND_HWECC /* Register access macros */ -- 2.8.0.rc3.226.g39d4020

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[U-Boot] [PATCH] Lower USB_MAX_XFER_BLK to 32767 by default for trimslice
by Nicolas Chauvet 28 May '16

28 May '16

I'm experiencing an issue when loading a generic distro initramfs on trimslice-pro (with ssd using ehci) with the default value of 65535 for USB_MAX_XFER_BLK EHCI timed out on TD - token=0x80008d80 As adviced by Marek on IRC, using a lower value for USB_MAX_XFER_BLK allows to load the file Tested values on tegra20-trimslice: 4095 ok 32767 ok 32768 timeout 36864 timeout 40960 timeout 49150 timeout Tested on current u-boot master Signed-off-by: Nicolas Chauvet <kwizart(a)gmail.com> --- common/usb_storage.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/common/usb_storage.c b/common/usb_storage.c index 7e6e52d..c69a7f7 100644 --- a/common/usb_storage.c +++ b/common/usb_storage.c @@ -106,7 +106,7 @@ struct us_data { * enough free heap space left, but the SCSI READ(10) and WRITE(10) commands are * limited to 65535 blocks. */ -#define USB_MAX_XFER_BLK 65535 +#define USB_MAX_XFER_BLK 32767 #else #define USB_MAX_XFER_BLK 20 #endif -- 2.4.11

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[U-Boot] [PATCH 1/2] cmd: usb_mass_storage: Use NULL for pointer
by Fabio Estevam 28 May '16

28 May '16

From: Fabio Estevam <fabio.estevam(a)nxp.com> Use NULL for pointer to fix the following sparse warning: cmd/usb_mass_storage.c:47:15: warning: Using plain integer as NULL pointer Signed-off-by: Fabio Estevam <fabio.estevam(a)nxp.com> --- cmd/usb_mass_storage.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/cmd/usb_mass_storage.c b/cmd/usb_mass_storage.c index b05913a..2eb113c 100644 --- a/cmd/usb_mass_storage.c +++ b/cmd/usb_mass_storage.c @@ -44,7 +44,7 @@ static void ums_fini(void) for (i = 0; i < ums_count; i++) free((void *)ums[i].name); free(ums); - ums = 0; + ums = NULL; ums_count = 0; } -- 1.9.1

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