December 2008 - U-Boot

[U-Boot] [PATCH] sh: update sh timer coding style
by Jean-Christophe PLAGNIOL-VILLARD 10 Jan '09

10 Jan '09

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj(a)jcrosoft.com> --- lib_sh/time.c | 26 +++++++++++++------------- 1 files changed, 13 insertions(+), 13 deletions(-) diff --git a/lib_sh/time.c b/lib_sh/time.c index 2bd7715..8fccce3 100644 --- a/lib_sh/time.c +++ b/lib_sh/time.c @@ -49,21 +49,21 @@ int timer_init (void) { /* Divide clock by TMU_CLK_DIVIDER */ u16 bit = 0; - switch( TMU_CLK_DIVIDER ){ - case 4: - bit = 0; - break; - case 16: - bit = 1; - break; - case 64: bit = 2; + + switch (TMU_CLK_DIVIDER) { + case 1024: + bit = 4; break; case 256: bit = 3; break; - case 1024: - bit = 4; + case 64: + bit = 2; break; + case 16: + bit = 1; + break; + case 4: default: bit = 0; break; @@ -71,7 +71,7 @@ int timer_init (void) writew(readw(TCR0) | bit, TCR0); /* Clock adjustment calc */ - clk_adj = (int)(1.0/((1.0/CONFIG_SYS_HZ)*1000000)); + clk_adj = (int)(1.0 / ((1.0 / CONFIG_SYS_HZ) * 1000000)); if (clk_adj < 1) clk_adj = 1; @@ -102,8 +102,8 @@ void udelay (unsigned long usec) unsigned long get_timer (unsigned long base) { - /* return msec */ - return ((get_usec()/clk_adj)/1000) - base; + /* return msec */ + return ((get_usec() / clk_adj) / 1000) - base; } void set_timer (unsigned long t) -- 1.5.6.5

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[U-Boot] [PATCH] ppc4xx: Fix UART baudrate setup by FDT
by Matthias Fuchs 07 Jan '09

07 Jan '09

On ppc4xx platforms __ft_board_setup updates clock-frequency properties of all ns16550 compatible UARTs. This is not a good idea when those UARTs are external discrete UARTs that are not clocked by some internal clocks. So any external clock value in the DTB is overwritten and those UARTs will not be setup correctly by the Linux kernel. This patch uses the approach from fdt_fixup_ethernet(). Only UART nodes that have a serial* alias are updated. --- common/fdt_support.c | 20 ++++++++++++++++++++ cpu/ppc4xx/fdt.c | 3 ++- include/fdt_support.h | 1 + 3 files changed, 23 insertions(+), 1 deletions(-) diff --git a/common/fdt_support.c b/common/fdt_support.c index 5a83bca..99d4c3f 100644 --- a/common/fdt_support.c +++ b/common/fdt_support.c @@ -454,6 +454,26 @@ void fdt_fixup_ethernet(void *fdt) } } +void fdt_fixup_serial(void *fdt) +{ + int node, i; + char serial[10]; + const char *path; + + node = fdt_path_offset(fdt, "/aliases"); + if (node < 0) + return; + + i = 0; + while (1) { + sprintf(serial, "serial%d", i++); + path = fdt_getprop(fdt, node, serial, NULL); + if (path == NULL) + break; + do_fixup_by_path_u32(fdt, path, "clock-frequency", gd->uart_clk, 1); + } +} + #ifdef CONFIG_HAS_FSL_DR_USB void fdt_fixup_dr_usb(void *blob, bd_t *bd) { diff --git a/cpu/ppc4xx/fdt.c b/cpu/ppc4xx/fdt.c index c55e1cf..5b267d1 100644 --- a/cpu/ppc4xx/fdt.c +++ b/cpu/ppc4xx/fdt.c @@ -134,8 +134,9 @@ void ft_cpu_setup(void *blob, bd_t *bd) /* * Setup all baudrates for the UARTs + * Note: aliases in the dts are required for this */ - do_fixup_by_compat_u32(blob, "ns16550", "clock-frequency", gd->uart_clk, 1); + fdt_fixup_serial(blob); /* * Fixup all ethernet nodes diff --git a/include/fdt_support.h b/include/fdt_support.h index 6062df9..bf3df60 100644 --- a/include/fdt_support.h +++ b/include/fdt_support.h @@ -49,6 +49,7 @@ void do_fixup_by_compat_u32(void *fdt, const char *compat, const char *prop, u32 val, int create); int fdt_fixup_memory(void *blob, u64 start, u64 size); void fdt_fixup_ethernet(void *fdt); +void fdt_fixup_serial(void *fdt); int fdt_find_and_setprop(void *fdt, const char *node, const char *prop, const void *val, int len, int create); void fdt_fixup_qe_firmware(void *fdt); -- 1.5.6.3

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[U-Boot] [PATCH] make make quiet
by kenneth johansson 06 Jan '09

06 Jan '09

Only print out the target name during make. For old style set V=1 Signed-off-by: kenneth johansson <kenneth(a)southpole.se> --- actual patch at http://www.4shared.com/file/78174399/3496e05d/0001-make-make-quiet.html

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[U-Boot] u-boot configurations for custom board with MPC 8265
by Jyotshna Cherukuri 06 Jan '09

06 Jan '09

Hi All, I am using a custom powerpc board with MPC8265 ( 66/200/300 Mhz) , 32MB of SDRAM ( 0x00000000 - 0x01FFFFFF) and 8 MB of Flash Simm ( 0xFF800000 - 0xFFFFFFFF) . I am modifying the MPC8260ads configurations to match my board but I don't see any messages being printed on the serial port. I am using Codewarrior USB TAP debugger to debug the u-boot code with an initialization file as follows: setMMRBaseAddr 0x00000000 writemmr SCCR 0x0000 writemmr SYPCR 0xffffffc3 writemmr RMR 0x0001 # Memory periodic timer prescaler writemmr MPTPR 0x3200 # Internal memory map register writemmr IMMR 0x04700000 #Change the debugger's base address to match the new register base setMMRBaseAddr 0x04700000 writemmr BR0 0xff801001 writemmr OR0 0xff800836 # CS2 is SDRAM, 64-bit port at 0x00000000 writemmr BR2 0x00000041 writemmr OR2 0xfe002ec0 # set 60x Bus assigned SDRAM Refresh Timer (PSRT) writemmr PSRT 0x13 writemmr MPTPR 0x2800 # 60x SDRAM Mode Register # precharge all banks writemmr PSDMR 0x824b36a3 writemmr PSDMR 0xaa4b36a3 # perform an access writemem.b 0x00000000 0x00 # cbr refresh writemmr PSDMR 0x8a4b36a3 # perform 8 accesses writemem.b 0x00000000 0xFF writemem.b 0x00000000 0xFF writemem.b 0x00000000 0xFF writemem.b 0x00000000 0xFF writemem.b 0x00000000 0xFF writemem.b 0x00000000 0xFF writemem.b 0x00000000 0xFF writemem.b 0x00000000 0xFF # 60x SDRAM Mode Register # Issue Mode register write writemmr PSDMR 0x9a4b36a3 writemem.b 0x00000190 0x00 writemmr PSDMR 0xc24b36a3 With the above initialization file when I define CONFIG_IMMR to 0xF0000000 in u-boot it just doesn't go further and so I modified it to be same as the initilization file ( 0x0470000) and now I am stepping little further into the code but I am getting stuck at a point in cpu_init_f in start.S. Could anyone please let me know the exact configurations I need to define in mpc8260ads.h file in u-boot. Any help is greatly appreciated. Thanks in advance Best Regards Jyotshna

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[U-Boot] [PATCH] cmd_sf: rename "speed" to "hz"
by Mike Frysinger 06 Jan '09

06 Jan '09

The term "hz" is used everywhere else when talking about the frequency of the SPI bus, so have the sf command use it as well to stay consistent. It even presents itself as "hz" when showing user help. Signed-off-by: Mike Frysinger <vapier(a)gentoo.org> --- common/cmd_sf.c | 10 +++++----- 1 files changed, 5 insertions(+), 5 deletions(-) diff --git a/common/cmd_sf.c b/common/cmd_sf.c index 8c0a751..902e51d 100644 --- a/common/cmd_sf.c +++ b/common/cmd_sf.c @@ -8,8 +8,8 @@ #include <asm/io.h> -#ifndef CONFIG_SF_DEFAULT_SPEED -# define CONFIG_SF_DEFAULT_SPEED 1000000 +#ifndef CONFIG_SF_DEFAULT_HZ +# define CONFIG_SF_DEFAULT_HZ 1000000 #endif #ifndef CONFIG_SF_DEFAULT_MODE # define CONFIG_SF_DEFAULT_MODE SPI_MODE_3 @@ -21,7 +21,7 @@ static int do_spi_flash_probe(int argc, char *argv[]) { unsigned int bus = 0; unsigned int cs; - unsigned int speed = CONFIG_SF_DEFAULT_SPEED; + unsigned int hz = CONFIG_SF_DEFAULT_HZ; unsigned int mode = CONFIG_SF_DEFAULT_MODE; char *endp; struct spi_flash *new; @@ -43,7 +43,7 @@ static int do_spi_flash_probe(int argc, char *argv[]) } if (argc >= 3) { - speed = simple_strtoul(argv[2], &endp, 0); + hz = simple_strtoul(argv[2], &endp, 0); if (*argv[2] == 0 || *endp != 0) goto usage; } @@ -53,7 +53,7 @@ static int do_spi_flash_probe(int argc, char *argv[]) goto usage; } - new = spi_flash_probe(bus, cs, speed, mode); + new = spi_flash_probe(bus, cs, hz, mode); if (!new) { printf("Failed to initialize SPI flash at %u:%u\n", bus, cs); return 1; -- 1.6.0.4

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[U-Boot] spansion spi flash driver ?
by Mike Frysinger 06 Jan '09

06 Jan '09

in your original drivers/mtd/spi/spi_flash.c commit, you had this: #ifdef CONFIG_SPI_FLASH_SPANSION case 0x01: flash = spi_flash_probe_spansion(spi, idcode); break; #endif does that mean you have a spansion driver sitting around but it just wasnt merged ? if i dont have to write it from scratch, that'd be great :). -mike

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[U-Boot] Bug in nand_default_bbt?
by Nishanth Menon 05 Jan '09

05 Jan '09

Hi Scott, A gentle question on drivers/mtd/nand/nand_bbt.c:largepage_flashbased in Micron devices, the bb marker is the first word. for a x8 device is 1 byte and x16 device it is 2 bytes. .len = 2 makes sense for an x16 device in the above variable, however the marker does a false postive detection for x8 devices. I can over ride this by using nand_chip->badblock_pattern in my board file, but from an mtd layer perspective, does it make sense to fix this for a generic usage? Regards, Nishanth Menon

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[U-Boot] Is it possible to use 2GB or DDR on MPC834x?
by Valeriy Glushkov 05 Jan '09

05 Jan '09

Hi Guys! On my mpc8347 based board I can access 1GB of DDR with mapping 4 of 256MB ranges via IBAT\DBAT registers. But with the 2 GB of DDR it's impossible to map them with BATs (there are only 8 BATs in the e300 core and the rest 4 of them are already used). All the mpc83xx examples in the U-boot tree seem to use <=1GB of SDRAM, so they use BATs to map them. Any suggestions are highly appreciated. Best regards, Valeriy Glushkov

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[U-Boot] Copy environment variables to another board
by Giuseppe Modugno 05 Jan '09

05 Jan '09

I'm sorry if my question was already asked, but I didn't find an answer in the manual/FAQs/mailing list archive. I have a board running U-Boot/Linux. U-Boot program, two U-Boot environments, Linux kernel and root filesystem for Linux are stored in a NOR Flash. I finished my developing process and now I want to copy the entire U- Boot environment to a new board. Of course, I don't want to manually copy all the variables in the environment. Is there a simple way to dump the full environment in a file and copy it in the new board? Thanks for your help.

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[U-Boot] [PATCH] usb_storage: do not reset SanDisk Corporation U3 Cruzer Micro USB thumb drive
by Mike Frysinger 04 Jan '09

04 Jan '09

From: Bryan Wu <Bryan.Wu(a)analog.com> The SanDisk Corporation U3 Cruzer Micro 1/4GB Flash Drive 000016244373FFB4 does not like to be reset, so check for it. Signed-off-by: Bryan Wu <bryan.wu(a)analog.com> Signed-off-by: Mike Frysinger <vapier(a)gentoo.org> --- common/usb_storage.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/common/usb_storage.c b/common/usb_storage.c index 94f659f..236caf6 100644 --- a/common/usb_storage.c +++ b/common/usb_storage.c @@ -1166,6 +1166,11 @@ int usb_stor_get_info(struct usb_device *dev,struct us_data *ss,block_dev_desc_t /* SanDisk Corporation Cruzer Micro 20044318410546613953 */ (dev->descriptor.idVendor == 0x0781 && dev->descriptor.idProduct == 0x5151) + || + /* SanDisk Corporation U3 Cruzer Micro 1/4GB + * Flash Drive 000016244373FFB4 */ + (dev->descriptor.idVendor == 0x0781 && + dev->descriptor.idProduct == 0x5406) ) USB_STOR_PRINTF("usb_stor_get_info: skipping RESET..\n"); else -- 1.6.0.6

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