July 2011 - U-Boot

[U-Boot] Please update libfdt for U-Boot
by Tabi Timur-B04825 15 Jul '11

15 Jul '11

Jerry, Now that the merge window is open, could you please update libfdt? The version in U-Boot hasn't been updated in over a year, and there are new features that I need to have. Specifically, this commit: http://git.jdl.com/gitweb/?p=dtc.git;a=commit;h=d75b33af676d0beac8398651a7f… -- Timur Tabi Linux kernel developer at Freescale

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[U-Boot] [PATCH 1/2] fdt: introduce fdt_create_phandle()
by Timur Tabi 15 Jul '11

15 Jul '11

The ePAPR specification says that phandle properties should be called "phandle", and not "linux,phandle". To facilitate the migration from "linux,phandle" to "phandle", introduce function fdt_create_phandle(), which creates a phandle in a given node. For now, we create both the "phandle" and "linux,phandle" properties. A later version of this function will remove support for "linux,phandle". Signed-off-by: Timur Tabi <timur(a)freescale.com> --- common/fdt_support.c | 40 ++++++++++++++++++++++++++++++++++++++++ include/fdt_support.h | 1 + 2 files changed, 41 insertions(+), 0 deletions(-) diff --git a/common/fdt_support.c b/common/fdt_support.c index 85715ff..dd9deaf 100644 --- a/common/fdt_support.c +++ b/common/fdt_support.c @@ -1201,6 +1201,46 @@ int fdt_alloc_phandle(void *blob) return phandle + 1; } +/* + * fdt_create_phandle: Create a phandle property for the given node + * + * @fdt: ptr to device tree + * @nodeoffset: node to update + * @phandle: phandle value to set (must be unique) +*/ +int fdt_create_phandle(void *fdt, int nodeoffset, uint32_t phandle) +{ + int ret; + +#ifdef DEBUG + int off = fdt_node_offset_by_phandle(fdt, phandle); + + if ((off >= 0) && (off != nodeoffset)) { + char buf[64]; + + fdt_get_path(fdt, nodeoffset, buf, sizeof(buf)); + printf("Trying to update node %s with phandle %u ", + buf, phandle); + + fdt_get_path(fdt, off, buf, sizeof(buf)); + printf("that already exists in node %s.\n", buf); + return -FDT_ERR_BADPHANDLE; + } +#endif + + ret = fdt_setprop_cell(fdt, nodeoffset, "phandle", phandle); + if (ret < 0) + return ret; + + /* + * For now, also set the deprecated "linux,phandle" property, so that we + * don't break older kernels. + */ + ret = fdt_setprop_cell(fdt, nodeoffset, "linux,phandle", phandle); + + return ret; +} + #if defined(CONFIG_VIDEO) int fdt_add_edid(void *blob, const char *compat, unsigned char *edid_buf) { diff --git a/include/fdt_support.h b/include/fdt_support.h index ce6817b..366062f 100644 --- a/include/fdt_support.h +++ b/include/fdt_support.h @@ -88,6 +88,7 @@ u64 fdt_translate_address(void *blob, int node_offset, const u32 *in_addr); int fdt_node_offset_by_compat_reg(void *blob, const char *compat, phys_addr_t compat_off); int fdt_alloc_phandle(void *blob); +int fdt_create_phandle(void *fdt, int nodeoffset, uint32_t phandle); int fdt_add_edid(void *blob, const char *compat, unsigned char *buf); #endif /* ifdef CONFIG_OF_LIBFDT */ -- 1.7.3.4

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[U-Boot] YOUR EMAIL HAS JUST WON YOU 1,000 000 POUNDS
by MICROSOFT 15 Jul '11

15 Jul '11

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[U-Boot] BDI2000 configuration for P2020DS
by Ira W. Snyder 14 Jul '11

14 Jul '11

Hi everyone, Does anyone have a BDI2000 configuration for the P2020DS that they could share with me? The documentation Freescale sent me claims that U-Boot is in a 4MB SPI flash, however, the U-Boot that came with the board is unable to initialize the SPI subsystem per their instructions. => sf probe 0 SF: Unsupported Manufacturer 00 Failed to initialize SPI flash at 0:0 I thought I'd use the BDI2000 to dump a copy of their U-Boot before I replace it with my own, just for good measure. Thank you, Ira

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[U-Boot] [RESEND PATCH v2 0/5] Add basic clock and pinmux functions to the Tegra2
by Simon Glass 14 Jul '11

14 Jul '11

This patch series adds basic clock and pinmux functions to the Tegra2, and modifies the ap20 and board code to use them. Note I have tidied up the change logs to be in the right place. Changes in v2: - Removed use of bitfield access macros - Now uses manual shifts and masks - Removed all bitfield access macros Simon Glass (5): Tegra2: Add macros to calculate bitfield shifts and masks Tegra2: Add microsecond timer functions Tegra2: Add more clock support Tegra2: add additional pin multiplexing features Tegra2: Use clock and pinmux functions to simplify code arch/arm/cpu/armv7/tegra2/Makefile | 2 +- arch/arm/cpu/armv7/tegra2/ap20.c | 91 +++------- arch/arm/cpu/armv7/tegra2/clock.c | 158 ++++++++++++++++ arch/arm/cpu/armv7/tegra2/pinmux.c | 53 ++++++ arch/arm/cpu/armv7/tegra2/timer.c | 27 ++- arch/arm/include/asm/arch-tegra2/bitfield.h | 96 ++++++++++ arch/arm/include/asm/arch-tegra2/clk_rst.h | 140 +++++++------- arch/arm/include/asm/arch-tegra2/clock.h | 264 +++++++++++++++++++++++++++ arch/arm/include/asm/arch-tegra2/pinmux.h | 155 +++++++++++++++- arch/arm/include/asm/arch-tegra2/timer.h | 34 ++++ board/nvidia/common/board.c | 64 +++---- 11 files changed, 893 insertions(+), 191 deletions(-) create mode 100644 arch/arm/cpu/armv7/tegra2/clock.c create mode 100644 arch/arm/cpu/armv7/tegra2/pinmux.c create mode 100644 arch/arm/include/asm/arch-tegra2/bitfield.h create mode 100644 arch/arm/include/asm/arch-tegra2/clock.h create mode 100644 arch/arm/include/asm/arch-tegra2/timer.h -- 1.7.3.1

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[U-Boot] hi
by isaaq mera 14 Jul '11

14 Jul '11

Hi Dear, How was your day?hope nice.i saw your contact when i was browsing in the internet. i will love to be your friend.get back to me for more details and photo sharing. Have a great day, Yours Princess Mera.

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by Great Promos Inc 14 Jul '11

14 Jul '11

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[U-Boot] initramfs support through the initrd mechanism of u-boot
by Cao, Da-Shi (EB-Presales-ZTE/HW-GZ) 14 Jul '11

14 Jul '11

Currently the support of Linux initial file system by u-boot is a file system image through "initrd". I tweaked a little of both the "lib_arm/armlinux.c" and the initramfs of Linux (a gziped cpio) so that the initramfs file could be passed to the kernel. For example: bootm c0008000 c1008000 will pass c1008000 to kernel as the start address of a initramfs. However in the Linux kernel it seems that it expects a physical address of initrd start, but u-boot passes a virtual address if MMU is enable. So a "virt_to_phy" should be used on the address before it is passed to the kernel. I'm currently using a Mini6410 (with Samsung S3C6410 CPU), an ARM board from China. Thanks, Thomas

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[U-Boot] [PATCH v2] miiphy: use strncpy() not sprintf()
by Laurence Withers 14 Jul '11

14 Jul '11

In miiphy_register() the new device's name was initialised by passing a string parameter as the format string to sprintf(). As this would cause problems if it ever contained a '%' symbol, switch to using strncpy() instead. Signed-off-by: Laurence Withers <lwithers(a)guralp.com> Cc: Andy Fleming <afleming(a)freescale.com> --- Changes for v2: - Use strncpy() rather than plain strcpy() for extra safety. --- common/miiphyutil.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/common/miiphyutil.c b/common/miiphyutil.c index bcab74e..bc9896e 100644 --- a/common/miiphyutil.c +++ b/common/miiphyutil.c @@ -141,7 +141,8 @@ void miiphy_register(const char *name, /* initalize mii_dev struct fields */ new_dev->read = legacy_miiphy_read; new_dev->write = legacy_miiphy_write; - sprintf(new_dev->name, name); + strncpy(new_dev->name, name, MDIO_NAME_LEN); + new_dev->name[MDIO_NAME_LEN - 1] = 0; ldev->read = read; ldev->write = write; new_dev->priv = ldev; -- 1.7.2.5

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[U-Boot] [PATCH V2] ARM: MX5: Fix broken leftover TO-2 errata workaround
by David Jander 14 Jul '11

14 Jul '11

This check was broken. r3 does not contain the silicon revision anymore, so we need to reload it. Also, this errata only applies to i.MX51. Changed in this version: - Added #ifdef CONFIG_MX51 around the workaround Signed-off-by: David Jander <david(a)protonic.nl> --- arch/arm/cpu/armv7/mx5/lowlevel_init.S | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-) diff --git a/arch/arm/cpu/armv7/mx5/lowlevel_init.S b/arch/arm/cpu/armv7/mx5/lowlevel_init.S index ee4150d..6c66b42 100644 --- a/arch/arm/cpu/armv7/mx5/lowlevel_init.S +++ b/arch/arm/cpu/armv7/mx5/lowlevel_init.S @@ -39,10 +39,14 @@ orr r0, r0, #(1 << 23) /* disable write allocate combine */ orr r0, r0, #(1 << 22) /* disable write allocate */ - cmp r3, #0x10 /* r3 contains the silicon rev */ +#if defined(CONFIG_MX51) + ldr r1, =0x0 + ldr r3, [r1, #ROM_SI_REV] + cmp r3, #0x10 /* disable write combine for TO 2 and lower revs */ orrls r0, r0, #(1 << 25) +#endif mcr 15, 1, r0, c9, c0, 2 .endm /* init_l2cc */ -- 1.7.4.1

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