May 2012 - U-Boot

[U-Boot] uboot and ZFS
by Jorgen Lundman 14 May '12

14 May '12

Sorry if I am posting some kind of FAQ here, I recently picked up a Cubox (arm) which uses uboot. Added ZFS to Linux and made it have a ZFS root filesystem. The only drawback is the small boot partition of ext2/fat to read uImage and initrd. So I am curious about adding ZFS support to uboot. Looking at the sources http://git.denx.de/cgi-bin/gitweb.cgi?p=u-boot.git;a=tree in particular, the ext2 work, I see it was once imported from GRUB. Comparing that with https://github.com/pendor/grub-zfs/tree/master/grub-core/fs/zfs which is a fork for ZFS support to GRUB. At first glance, it would suggest that it should be feasible to add ZFS to uboot. But since I only have 'usage-level knowledge' of both boot systems, I am unaware of any show-stoppers. Perhaps memory/object-size is an issue? The ext2 code is some ~1100 lines in uboot, but ZFS is 2700 lines in GRUB. Or any of a thousand other issues I am unaware about. Anyone already attempted such a project? Any resources available for such porting? Will I even be able to run my own version of uboot on the Cubox? Lund -- Jorgen Lundman | <lundman(a)lundman.net> Unix Administrator | +81 (0)3 -5456-2687 ext 1017 (work) Shibuya-ku, Tokyo | +81 (0)90-5578-8500 (cell) Japan | +81 (0)3 -3375-1767 (home)

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[U-Boot] mx28evk related problems
by Alexander Hartmann 13 May '12

13 May '12

Hi, I am new to U-boot and I am trying to get it to work on the mx28evk board (revision D). I can compile U-boot and create an image for the SD-card. When I try to boot from this image the serial debug console stays empty. No error code is given. When I power the board without the SD-card I get an error message. Is this supposed to be a good sign? Is there another way to check, if U-boot has started correctly? I tried todays master branch and limited the maximum RAM size to 128MB as it has been suggested by setting: #define PHYS_SDRAM_1_SIZE 0x08000000 /* Max 512MB RAM */ Can someone please confirm whether or not this should work. Should the serial debug console be enabled by default and if not, where I can enable it? Best, Alex

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[U-Boot] [PATCH] Ignore all Carriage Returns when importing an environment.
by Alexander Holler 13 May '12

13 May '12

This is used for compatibility with text files which are using CRLF instead of LF as the end of a line. Signed-off-by: Alexander Holler <holler(a)ahsoftware.de> --- lib/hashtable.c | 18 +++++++++++++++--- 1 files changed, 15 insertions(+), 3 deletions(-) diff --git a/lib/hashtable.c b/lib/hashtable.c index abd61c8..6e146ce 100644 --- a/lib/hashtable.c +++ b/lib/hashtable.c @@ -623,9 +623,9 @@ ssize_t hexport_r(struct hsearch_data *htab, const char sep, * (entries separated by newline characters). * * To allow for nicely formatted text input, leading white space - * (sequences of SPACE and TAB chars) is ignored, and entries starting - * (after removal of any leading white space) with a '#' character are - * considered comments and ignored. + * (sequences of SPACE and TAB chars) is ignored, all Carriage Returns + * are ignored and entries starting (after removal of any leading white + * space) with a '#' character are considered comments and ignored. * * [NOTE: this means that a variable name cannot start with a '#' * character.] @@ -642,6 +642,7 @@ int himport_r(struct hsearch_data *htab, const char *env, size_t size, const char sep, int flag) { char *data, *sp, *dp, *name, *value; + unsigned ignored_crs; /* Test for correct arguments. */ if (htab == NULL) { @@ -698,6 +699,17 @@ int himport_r(struct hsearch_data *htab, } } + /* Remove all Carriage Returns */ + ignored_crs = 0; + for(;dp < data + size && *dp; ++dp) { + if( *dp == '\r' ) + ++ignored_crs; + else if(ignored_crs) + *(dp-ignored_crs) = *dp; + } + size -= ignored_crs; + dp = data; + /* Parse environment; allow for '\0' and 'sep' as separators */ do { ENTRY e, *rv; -- 1.7.3.4

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[U-Boot] [PATCH] mx28evk: Scan only first 512 MB of DRAM to avoid memory wraparound
by Fabio Estevam 12 May '12

12 May '12

From: Fabio Estevam <fabio.estevam(a)freescale.com> Scan only first 512 MB of DRAM to avoid memory wraparound. This fixes mx28evk boot and it follows the same idea of commit 19a2066b57 (M28: Scan only first 512 MB of DRAM to avoid memory wraparound) Signed-off-by: Fabio Estevam <fabio.estevam(a)freescale.com> --- include/configs/mx28evk.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/include/configs/mx28evk.h b/include/configs/mx28evk.h index 0c18e50..a4ea12d 100644 --- a/include/configs/mx28evk.h +++ b/include/configs/mx28evk.h @@ -75,7 +75,7 @@ */ #define CONFIG_NR_DRAM_BANKS 1 /* 1 bank of DRAM */ #define PHYS_SDRAM_1 0x40000000 /* Base address */ -#define PHYS_SDRAM_1_SIZE 0x40000000 /* Max 1 GB RAM */ +#define PHYS_SDRAM_1_SIZE 0x20000000 /* Max 512MB RAM */ #define CONFIG_STACKSIZE (128 * 1024) /* 128 KB stack */ #define CONFIG_SYS_MALLOC_LEN 0x00400000 /* 4 MB for malloc */ #define CONFIG_SYS_MEMTEST_START 0x40000000 /* Memtest start adr */ -- 1.7.1

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[U-Boot] [PATCH] mx28evk: Fix PSWITCH key position
by Fabio Estevam 12 May '12

12 May '12

Fix the position for PSWITCH key. The good benefit of doing this is that boot time is greatly reduced: from 5 seconds to less then 1 second. Signed-off-by: Fabio Estevam <fabio.estevam(a)freescale.com> --- doc/README.mx28evk | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/doc/README.mx28evk b/doc/README.mx28evk index c6c3d37..571dfda 100644 --- a/doc/README.mx28evk +++ b/doc/README.mx28evk @@ -17,7 +17,7 @@ Jumper configuration To boot MX28EVK from an SD card, set the boot mode DIP switches as: * Boot Mode Select: 1 0 0 1 (Boot from SD card Slot 0 - U42) - * JTAG PSWITCH RESET: To the left (reset enabled) + * JTAG PSWITCH RESET: To the right (reset disabled) * Battery Source: Down * Wall 5V: Up * VDD 5V: To the left (off) -- 1.7.1

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[U-Boot] Commit acc4959fc breaks mx28evk
by Fabio Estevam 12 May '12

12 May '12

Hi Marek, This commit in u-boot-imx causes mx28evk board to not boot: commit acc4959fc1b3e61beb372f686595eb2f90240c92 Author: Marek Vasut <marex(a)denx.de> Date: Thu May 3 05:47:18 2012 +0000 Revert "i.MX28: Enable additional DRAM address bits" Can you please check? Regards, Fabio Estevam

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[U-Boot] Question about md output
by ffileppo＠libero.it 12 May '12

12 May '12

Dear all, I need to access data values stored in flash for integrity checking. Thus, I would like to parse the output of md (memory display) and store its output to enviromental varaibles. For example, when invoking: => md 0x100000 1 00100000: 8083764e bd86200a 60a19054 2c12c402 I would like to store one ore more memory values in some env variables. 1) Is it feasible with the current uboot scripting features? 2) Would it be possible to modify the md command so that it also store its output to env variables? 3) Or, would it be possible to modify the md command so that its output is just a word value which can be used for uboot scripting capabilities? e.g. => md 0x100000 1 2 bd86200a => md 0x100000 1 4 2c12c402 Best Regards, FF

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[U-Boot] [PATCH 0/3] msm7630 usb gadget and emmc support
by Mohamed Haneef 12 May '12

12 May '12

This patch series contains support for usb gadget, enabling eMMC high capacity and interrupt support for msm7630 surf. Mohamed Haneef (3): MSM7630 Interrupt support MSM7630 gadget usb support board: qcom: enable high capacity eMMC cards arch/arm/cpu/armv7/msm7630/Makefile | 1 + arch/arm/cpu/armv7/msm7630/interrupts.c | 155 +++++++ arch/arm/include/asm/arch-msm7630/exclusion.h | 42 ++ arch/arm/include/asm/arch-msm7630/hsusb.h | 182 ++++++++ arch/arm/include/asm/arch-msm7630/interrupts.h | 40 ++ arch/arm/include/asm/arch-msm7630/irqs.h | 173 ++++++++ board/qcom/msm7630_surf/msm7630_surf.c | 5 +- drivers/serial/usbtty.h | 2 + drivers/usb/gadget/Makefile | 1 + drivers/usb/gadget/msm_udc.c | 560 ++++++++++++++++++++++++ include/configs/msm7630_surf.h | 12 +- include/usb/msm_udc.h | 46 ++ 12 files changed, 1215 insertions(+), 4 deletions(-) create mode 100644 arch/arm/cpu/armv7/msm7630/interrupts.c create mode 100644 arch/arm/include/asm/arch-msm7630/exclusion.h create mode 100644 arch/arm/include/asm/arch-msm7630/hsusb.h create mode 100644 arch/arm/include/asm/arch-msm7630/interrupts.h create mode 100644 arch/arm/include/asm/arch-msm7630/irqs.h create mode 100644 drivers/usb/gadget/msm_udc.c create mode 100644 include/usb/msm_udc.h

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[U-Boot] [PATCH v7 03/23] Add abs() macro to return absolute value
by Simon Glass 12 May '12

12 May '12

This macro is generally useful to make it available in common. Signed-off-by: Simon Glass <sjg(a)chromium.org> --- Changes in v3: - Add new patch to put abs() in common.h Changes in v6: - Update x86emu and omap4 to use the abs() macro Changes in v7: - Use a really simple abs() macro for now arch/arm/cpu/armv7/omap4/clocks.c | 2 -- drivers/bios_emulator/x86emu/prim_ops.c | 5 ----- include/common.h | 3 +++ 3 files changed, 3 insertions(+), 7 deletions(-) diff --git a/arch/arm/cpu/armv7/omap4/clocks.c b/arch/arm/cpu/armv7/omap4/clocks.c index e2189f7..ce3f59c 100644 --- a/arch/arm/cpu/armv7/omap4/clocks.c +++ b/arch/arm/cpu/armv7/omap4/clocks.c @@ -46,8 +46,6 @@ #define puts(s) #endif -#define abs(x) (((x) < 0) ? ((x)*-1) : (x)) - struct omap4_prcm_regs *const prcm = (struct omap4_prcm_regs *)0x4A004100; const u32 sys_clk_array[8] = { diff --git a/drivers/bios_emulator/x86emu/prim_ops.c b/drivers/bios_emulator/x86emu/prim_ops.c index 7553087..5f6c795 100644 --- a/drivers/bios_emulator/x86emu/prim_ops.c +++ b/drivers/bios_emulator/x86emu/prim_ops.c @@ -118,11 +118,6 @@ static u32 x86emu_parity_tab[8] = #define PARITY(x) (((x86emu_parity_tab[(x) / 32] >> ((x) % 32)) & 1) == 0) #define XOR2(x) (((x) ^ ((x)>>1)) & 0x1) -/*----------------------------- Implementation ----------------------------*/ -int abs(int v) -{ - return (v>0)?v:-v; -} /*----------------------------- Implementation ----------------------------*/ diff --git a/include/common.h b/include/common.h index 4b5841e..2f2a869 100644 --- a/include/common.h +++ b/include/common.h @@ -222,6 +222,9 @@ typedef void (interrupt_handler_t)(void *); #define MIN(x, y) min(x, y) #define MAX(x, y) max(x, y) +/* Return the absolute value of a number */ +#define abs(x) ((x) < 0 ? -(x) : (x)) + #if defined(CONFIG_ENV_IS_EMBEDDED) #define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN #elif ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \ -- 1.7.7.3

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Re: [U-Boot] [PATCH v4 1/3] lib: add rand() function
by Wolfgang Denk 11 May '12

11 May '12

Dear Michael Walle, please keep the ML on Cc: - thanks. In message <201205112249.27871.michael(a)walle.cc> you wrote: > > > > > > +static unsigned int y = 2463534242U; > > > > > > > > Hm... can we introduce at least a little entropy somewhere? > > > > > > Mh? A user is supposed to seed via srand(). > > > > Then why initialize y at all? > To have a sane fallback. Maybe i should have written > "A user is supposed to seed via srand() if he wan't some > entropy." This is inconsequent. Either we assume that the user will seed srand(), then y should not be initialized at all, so it goes to the BSS segment and does not waste space in the binary image. Or we want to deal with cases where the user doesn call srand(), and then we should provide a bit better than such a static initialization. Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd(a)denx.de If all the Chinese simultaneously jumped into the Pacific off a 10 foot platform erected 10 feet off their coast, it would cause a tidal wave that would destroy everything in this country west of Nebraska.

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