February 2009 - U-Boot

[U-Boot] [PATCH 5/9 v3] 83xx, kmeter1: autodetect size of DDR II RAM
by Heiko Schocher 19 Feb '09

19 Feb '09

it is possible that some board variants have different DDR II RAM sizes. So we autodetect the size of the assembled RAM. Signed-off-by: Heiko Schocher <hs(a)denx.de> --- board/keymile/kmeter1/kmeter1.c | 28 ++++++++++++++++++---------- include/configs/kmeter1.h | 4 ++-- 2 files changed, 20 insertions(+), 12 deletions(-) diff --git a/board/keymile/kmeter1/kmeter1.c b/board/keymile/kmeter1/kmeter1.c index c2df432..0b0c2a3 100644 --- a/board/keymile/kmeter1/kmeter1.c +++ b/board/keymile/kmeter1/kmeter1.c @@ -29,6 +29,8 @@ #include "../common/common.h" +extern void disable_addr_trans (void); +extern void enable_addr_trans (void); const qe_iop_conf_t qe_iop_conf_tab[] = { /* port pin dir open_drain assign */ @@ -110,16 +112,7 @@ int fixed_sdram(void) u32 ddr_size; u32 ddr_size_log2; - msize = CONFIG_SYS_DDR_SIZE; - for (ddr_size = msize << 20, ddr_size_log2 = 0; - (ddr_size > 1); ddr_size = ddr_size >> 1, ddr_size_log2++) { - if (ddr_size & 1) - return -1; - } - - im->sysconf.ddrlaw[0].ar = - LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE); - + im->sysconf.ddrlaw[0].ar = LAWAR_EN | 0x1e; im->ddr.csbnds[0].csbnds = CONFIG_SYS_DDR_CS0_BNDS; im->ddr.cs_config[0] = CONFIG_SYS_DDR_CS0_CONFIG; im->ddr.timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0; @@ -135,6 +128,21 @@ int fixed_sdram(void) udelay (200); im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN; + msize = CONFIG_SYS_DDR_SIZE << 20; + disable_addr_trans (); + msize = get_ram_size (CONFIG_SYS_DDR_BASE, msize); + enable_addr_trans (); + msize /= (1024 * 1024); + if (CONFIG_SYS_DDR_SIZE != msize) { + for (ddr_size = msize << 20, ddr_size_log2 = 0; + (ddr_size > 1); ddr_size = ddr_size >> 1, ddr_size_log2++) + if (ddr_size & 1) + return -1; + im->sysconf.ddrlaw[0].ar = + LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE); + im->ddr.csbnds[0].csbnds = (((msize / 16) - 1) & 0xff); + } + return msize; } diff --git a/include/configs/kmeter1.h b/include/configs/kmeter1.h index 15f5e87..8686f81 100644 --- a/include/configs/kmeter1.h +++ b/include/configs/kmeter1.h @@ -92,8 +92,8 @@ * Manually set up DDR parameters */ #define CONFIG_DDR_II -#define CONFIG_SYS_DDR_SIZE 256 /* MB */ -#define CONFIG_SYS_DDR_CS0_BNDS 0x0000000f +#define CONFIG_SYS_DDR_SIZE 2048 /* MB */ +#define CONFIG_SYS_DDR_CS0_BNDS 0x0000007f #define CONFIG_SYS_DDR_CS0_CONFIG (CSCONFIG_EN | CSCONFIG_AP | \ CSCONFIG_ROW_BIT_13 | \ CSCONFIG_COL_BIT_10 | CSCONFIG_ODT_WR_ACS) -- 1.6.0.6 -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

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[U-Boot] [PATCH 00/09 v3] updates for keymile boards
by Heiko Schocher 19 Feb '09

19 Feb '09

The following series replaces the v2 series of this patch set. Changes since v2: Now it should be git-bisection compatible. For this I hold back the patches 10/12 - 12/12 from v2, because patch 10/12 changes the common config file for all boards, which leads in compile errors. I post this remaining patches if this patchset is in mainline, so old patch 10/12 v2 is then git-bisection compatible. This patch series is also updated to current top of u-boot: The following changes since commit 32482be67775e00b4cbc49fba62347c1ecc6229c: Wolfgang Denk (1): TQM8xxL: make some room in low memory for future needs Heiko Schocher (9): 82xx, mgcoge: updates for 2009.03 8xx, mgsuvd: updates for 2009.03 83xx, kmeter1: add I2C, dtt, eeprom support 83xx, i2c: add mux support for fsl_i2c 83xx, kmeter1: autodetect size of DDR II RAM 83xx: add missing TIMING_CFG1_CASLAT_* defines 83xx, kmeter1: updates for 2009.03 83xx, kmeter: QE_ENET10 errata for Silicon Revision 2.1 8360, kmeter1: added bootcount feature. board/keymile/common/common.c | 2 +- board/keymile/kmeter1/kmeter1.c | 80 ++++++++++++++++++++------ board/keymile/mgcoge/mgcoge.c | 7 ++- board/keymile/mgsuvd/mgsuvd.c | 5 ++ cpu/mpc83xx/cpu.c | 34 +++++++++++ cpu/mpc83xx/fdt.c | 18 ++++++ drivers/hwmon/lm75.c | 15 +++++ drivers/i2c/fsl_i2c.c | 24 ++++++++- include/configs/keymile-common.h | 7 -- include/configs/kmeter1.h | 117 ++++++++++++++++++++++++++++---------- include/configs/mgcoge.h | 32 ++++++++++- include/configs/mgsuvd.h | 18 +++++- include/mpc83xx.h | 2 + 13 files changed, 296 insertions(+), 65 deletions(-) -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

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[U-Boot] flow of u-boot
by ABIRAMA SUNDARI 19 Feb '09

19 Feb '09

can any one know what is the actuall flow of u-boot (ie) execution sequence. pls help me.... -- View this message in context: http://www.nabble.com/flow-of-u-boot-tp22100519p22100519.html Sent from the Uboot - Users mailing list archive at Nabble.com.

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[U-Boot] [PATCH 00/27] standardize mac address handling in u-boot
by Mike Frysinger 19 Feb '09

19 Feb '09

this set of patches aims to standardize the mac address handling in all of u-boot by doing the following: - add helper funcs for working with mac addresses (binary & string) - convert all duplicated code to use aforementioned helper funcs - convert all places to get the mac address from the environment - drop the global data instances of bi_enet*addr - document the whole damned thing ive taken pains to make sure the patchset doesnt break along the way (in terms of doing bisection and such). but in general, the interdependency looks something like: - add util funcs - convert net/boards/drivers/cpu/commands from global data to env - convert arch/board.c init to not touch global data - remove global data from all arch headers the ppc steps with load_sernum_ethaddr() are a little hairy due to the spread of code and trying to make sure things don't break bisection. but the other option is to squash all these commits (the common ppc board code as well as each individual board) into one change. doesn't matter to me either way. currently this patch series is maintained in my tree: git://www.denx.de/git/u-boot-blackfin.git macaddr Mike Frysinger (27): net: new utility functions for working with enetaddr's doc/README.enetaddr: document proper MAC usage Blackfin: bfin_mac: force boards to setup the MAC themselves net: get mac address from environment and use eth util funcs bdinfo: get mac address from environment bootvx: get mac address from environment lynxkdi: get mac address from environment nvedit: do not update global bi_enetaddr and do not call eth_set_enetaddr() AmigaOneG3SE/enet: get mac address from environment boards: get mac address from environment drivers/net/: get mac address from environment bcm570x: get mac address from environment cs8900: get mac address from environment sh_eth: get mac address from environment lan91c96/smc91111/smc911x: get mac address from environment cpu/: get mac address from environment npe: get mac address from environment lib_*/board.c: do not initialize bi_enet*addr in global data nx823: get mac address from environment arm: get mac address from environment cmc_pu2: get mac address from environment pcs440ep: get mac address from environment and move load_sernum_ethaddr() to board init kup4k/kup4x: rename load_sernum_ethaddr() to kup_load_sernum_ethaddr() tqm8xx: rename load_sernum_ethaddr() to tqc_load_sernum_ethaddr() ppc: do not initialize bi_enet*addr in global data drop now unused load_sernum_ethaddr() function remove bi_enet*addr from global data for all arches board/MAI/AmigaOneG3SE/enet.c | 42 ++-------- board/cmc_pu2/load_sernum_ethaddr.c | 18 +---- board/etin/debris/debris.c | 6 +- board/keymile/mgcoge/mgcoge.c | 4 +- board/keymile/mgsuvd/mgsuvd.c | 4 +- board/kup/common/load_sernum_ethaddr.c | 2 +- board/kup/kup4k/kup4k.c | 3 + board/kup/kup4x/kup4x.c | 4 +- board/m501sk/m501sk.c | 5 - board/mpl/vcma9/cmd_vcma9.c | 11 +-- board/muas3001/muas3001.c | 4 +- board/netstal/common/nm_bsp.c | 40 +++------- board/nx823/flash.c | 5 +- board/nx823/nx823.c | 41 ++++------ board/pcs440ep/pcs440ep.c | 31 +++---- board/pn62/pn62.c | 24 ++---- board/sixnet/sixnet.c | 11 +-- board/tqc/tqm8xx/load_sernum_ethaddr.c | 2 +- board/tqc/tqm8xx/tqm8xx.c | 3 + board/xilinx/xilinx_enet/emac_adapter.c | 8 ++- common/cmd_bdinfo.c | 136 +++++++++---------------------- common/cmd_elf.c | 6 +- common/cmd_nvedit.c | 24 +----- common/lynxkdi.c | 2 +- cpu/arm920t/at91rm9200/ether.c | 8 +- cpu/ixp/npe/npe.c | 36 +++------ cpu/mpc512x/cpu.c | 6 +- cpu/mpc5xxx/cpu.c | 6 +- cpu/mpc8260/ether_fcc.c | 4 +- cpu/mpc8260/ether_scc.c | 4 +- cpu/ppc4xx/cpu_init.c | 14 ++-- doc/README.enetaddr | 96 ++++++++++++++++++++++ drivers/net/3c589.c | 7 +- drivers/net/4xx_enet.c | 13 +-- drivers/net/bcm570x.c | 4 +- drivers/net/bcm570x_lm.h | 2 +- drivers/net/bfin_mac.c | 16 ++-- drivers/net/bfin_mac.h | 2 +- drivers/net/cs8900.c | 58 ++++--------- drivers/net/dc2114x.c | 9 ++- drivers/net/dm9000x.c | 27 ++----- drivers/net/enc28j60.c | 4 +- drivers/net/fsl_mcdmafec.c | 11 ++- drivers/net/ks8695eth.c | 9 +-- drivers/net/lan91c96.c | 79 ++++--------------- drivers/net/mcffec.c | 10 +- drivers/net/rtl8019.c | 14 ++-- drivers/net/rtl8169.c | 2 +- drivers/net/s3c4510b_eth.c | 2 +- drivers/net/s3c4510b_eth.h | 2 +- drivers/net/sh_eth.c | 28 ++----- drivers/net/smc91111.c | 76 ++++-------------- drivers/net/smc911x.c | 15 ++-- drivers/net/tigon3.c | 7 +- drivers/net/xilinx_emac.c | 12 ++- drivers/net/xilinx_emaclite.c | 11 ++- include/asm-arm/u-boot.h | 5 - include/asm-avr32/u-boot.h | 1 - include/asm-blackfin/u-boot.h | 1 - include/asm-i386/u-boot.h | 1 - include/asm-m68k/u-boot.h | 13 --- include/asm-microblaze/u-boot.h | 1 - include/asm-mips/u-boot.h | 1 - include/asm-nios/u-boot.h | 1 - include/asm-nios2/u-boot.h | 1 - include/asm-ppc/u-boot.h | 19 ----- include/asm-sh/u-boot.h | 1 - include/asm-sparc/u-boot.h | 12 --- include/common.h | 2 - include/configs/cmc_pu2.h | 1 + include/net.h | 4 + lib_arm/board.c | 47 +++-------- lib_blackfin/board.c | 48 +----------- lib_i386/board.c | 17 ---- lib_m68k/board.c | 38 --------- lib_microblaze/board.c | 8 -- lib_mips/board.c | 8 -- lib_nios/board.c | 5 - lib_nios2/board.c | 5 - lib_ppc/board.c | 96 ---------------------- lib_sh/board.c | 10 --- lib_sparc/board.c | 19 ----- net/bootp.c | 13 +--- net/eth.c | 79 +++++++++++------- net/net.c | 20 ++--- post/cpu/mpc8xx/ether.c | 4 +- 86 files changed, 497 insertions(+), 1014 deletions(-) create mode 100644 doc/README.enetaddr

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[U-Boot] [PATCH] TQM8xxL: make some room in low memory for future needs
by Wolfgang Denk 19 Feb '09

19 Feb '09

THe TQM8xxL use a ahnd-optimized linker script to efficiently use the small boot sectors in the flash. This patch makes some room in the first sector to prepare for a size increase of lib_generic/vsprintf.o by a future patch. Signed-off-by: Wolfgang Denk <wd(a)denx.de> --- This patch is intended for the "next" branch to prepare for Mike Frysinger's macaddr patch series. board/tqc/tqm8xx/u-boot.lds | 1 - 1 files changed, 0 insertions(+), 1 deletions(-) diff --git a/board/tqc/tqm8xx/u-boot.lds b/board/tqc/tqm8xx/u-boot.lds index 4e221bc..19c1541 100644 --- a/board/tqc/tqm8xx/u-boot.lds +++ b/board/tqc/tqm8xx/u-boot.lds @@ -63,7 +63,6 @@ SECTIONS lib_generic/crc32.o (.text) lib_generic/zlib.o (.text) lib_ppc/cache.o (.text) - lib_ppc/time.o (.text) . = DEFINED(env_offset) ? env_offset : .; common/env_embedded.o (.ppcenv) -- 1.6.0.6

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[U-Boot] [PATCH 03/12] 83xx, kmeter1: add I2C, dtt, eeprom support
by Heiko Schocher 19 Feb '09

19 Feb '09

This patch adds I2C support for the Keymile kmeter1 board. It uses the First I2C Controller from the CPU, for accessing 4 temperature sensors, an eeprom with IVM data and the booteeprom over a pca9547 mux. Signed-off-by: Heiko Schocher <hs(a)denx.de> --- board/keymile/common/common.c | 2 +- board/keymile/kmeter1/kmeter1.c | 32 ++++++++++++++++++++++++++++++++ drivers/hwmon/lm75.c | 14 +++++++++++++- include/configs/kmeter1.h | 22 ++++++++++++++++++++++ 4 files changed, 68 insertions(+), 2 deletions(-) diff --git a/board/keymile/common/common.c b/board/keymile/common/common.c index 1338950..48ce613 100644 --- a/board/keymile/common/common.c +++ b/board/keymile/common/common.c @@ -318,7 +318,7 @@ int ivm_read_eeprom (void) if (buf != NULL) dev_addr = simple_strtoul ((char *)buf, NULL, 16); - if (eeprom_read (dev_addr, 0, i2c_buffer, CONFIG_SYS_IVM_EEPROM_MAX_LEN) != 0) { + if (i2c_read(dev_addr, 0, 1, i2c_buffer, CONFIG_SYS_IVM_EEPROM_MAX_LEN) != 0) { printf ("Error reading EEprom\n"); return -2; } diff --git a/board/keymile/kmeter1/kmeter1.c b/board/keymile/kmeter1/kmeter1.c index f04a57a..c2df432 100644 --- a/board/keymile/kmeter1/kmeter1.c +++ b/board/keymile/kmeter1/kmeter1.c @@ -59,6 +59,23 @@ const qe_iop_conf_t qe_iop_conf_tab[] = { {0, 0, 0, 0, QE_IOP_TAB_END}, }; +static int board_init_i2c_busses (void) +{ + I2C_MUX_DEVICE *dev = NULL; + uchar *buf; + + /* Set up the Bus for the DTTs */ + buf = (unsigned char *) getenv ("dtt_bus"); + if (buf != NULL) + dev = i2c_mux_ident_muxstring (buf); + if (dev == NULL) { + printf ("Error couldn't add Bus for DTT\n"); + printf ("please setup dtt_bus to where your\n"); + printf ("DTT is found.\n"); + } + return 0; +} + int board_early_init_r (void) { void *reg = (void *)(CONFIG_SYS_IMMR + 0x14a8); @@ -80,6 +97,12 @@ int board_early_init_r (void) return 0; } +int misc_init_r (void) +{ + board_init_i2c_busses (); + return 0; +} + int fixed_sdram(void) { volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; @@ -156,3 +179,12 @@ void ft_board_setup (void *blob, bd_t *bd) ft_cpu_setup (blob, bd); } #endif + +#if defined(CONFIG_HUSH_INIT_VAR) +extern int ivm_read_eeprom (void); +int hush_init_var (void) +{ + ivm_read_eeprom (); + return 0; +} +#endif diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c index 8119821..ecfc345 100644 --- a/drivers/hwmon/lm75.c +++ b/drivers/hwmon/lm75.c @@ -42,6 +42,8 @@ #define DTT_TEMP_HYST 0x2 #define DTT_TEMP_SET 0x3 +DECLARE_GLOBAL_DATA_PTR; + int dtt_read(int sensor, int reg) { int dlen; @@ -157,7 +159,17 @@ int dtt_init (void) /* switch to correct I2C bus */ old_bus = I2C_GET_BUS(); - I2C_SET_BUS(CONFIG_SYS_DTT_BUS_NUM); + if ((gd->flags & GD_FLG_RELOC) != GD_FLG_RELOC) { + uchar *tmp = (uchar *)getenv("dtt_bus"); + if (tmp == NULL) + printf("FAILED: dtt_bus not defined\n"); + else { + if (i2c_mux_ident_muxstring_f(tmp)) + printf("FAILED: couldnt switch to bus\n"); + } + } else { + I2C_SET_BUS(CONFIG_SYS_DTT_BUS_NUM); + } for (i = 0; i < sizeof(sensors); i++) { if (_dtt_init(sensors[i]) != 0) diff --git a/include/configs/kmeter1.h b/include/configs/kmeter1.h index 25b1c17..0980eec 100644 --- a/include/configs/kmeter1.h +++ b/include/configs/kmeter1.h @@ -32,6 +32,7 @@ /* include common defines/options for all Keymile boards */ #include "keymile-common.h" +#define CONFIG_MISC_INIT_R 1 /* * System Clock Setup */ @@ -300,6 +301,25 @@ #define CONFIG_ENV_SIZE 0x2000 #endif /* CFG_RAMBOOT */ +/* I2C */ +#define CONFIG_HARD_I2C /* I2C with hardware support */ +#undef CONFIG_SOFT_I2C /* I2C bit-banged */ +#define CONFIG_FSL_I2C +#define CONFIG_SYS_I2C_SPEED 200000 /* I2C speed and slave address */ +#define CONFIG_SYS_I2C_SLAVE 0x7F +#define CONFIG_SYS_I2C_OFFSET 0x3000 + +/* I2C SYSMON (LM75, AD7414 is almost compatible) */ +#define CONFIG_DTT_LM75 1 /* ON Semi's LM75 */ +#define CONFIG_DTT_SENSORS {0, 1, 2, 3} /* Sensor addresses */ +#define CONFIG_SYS_DTT_MAX_TEMP 70 +#define CONFIG_SYS_DTT_LOW_TEMP -30 +#define CONFIG_SYS_DTT_HYSTERESIS 3 +#define CONFIG_SYS_DTT_BUS_NUM (2) +#define CONFIG_SYS_DTT_BOARD_INIT 1 + +#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 2 + #if defined(CONFIG_PCI) #define CONFIG_CMD_PCI #endif @@ -452,6 +472,8 @@ "loadfdt=tftp ${fdt_addr_r} ${fdt_file}\0" \ "loadkernel=tftp ${kernel_addr_r} ${boot_file}\0" \ "unlock=yes\0" \ + "EEprom_ivm=pca9547:70:9\0" \ + "dtt_bus=pca9547:70:a\0" \ "" #endif /* __CONFIG_H */ -- 1.6.0.6 -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

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[U-Boot] Uncompressing Linux Kernel hangs and no console messages
by Gurumurthy Gowdar 19 Feb '09

19 Feb '09

Hi, Now image is downloading both linux kernel and ramdisk..but after uncompressing the linux kerel ...it hangs there and no further console messages.... no ttyS0 messages are printed....but when i see log_buf using BDI2000 by giving md command ..console messages are displaying there....but unable to get the console messages after booting linux kernel...so please help me out in this regard to solve the above mentioned problem. even i have put CONSOLE_SERIAL_TEXT_DEBUG....and serial boot command args are added in menuconfig...when building the kernel image. how to check whether serial console ttyS0 is getting activated or not....please let me know the solution for this as early as possible. thanks in adavnce Regards, Gurumurthy i have given higher address while executing bootm command also i have read FAQ ...but still my problem which i have mentioned before is not solved.i am facing the same problem. in that FAQ => bootm 100000 ## Booting image at 00100000 ... Image Name: Linux-2.4.25 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 1003065 Bytes = 979.6 kB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK Uncompressing Kernel Image ... Error: inflate() returned -3 GUNZIP ERROR - must RESET board to recover in this solution Error while Uncompresssing Kernel Image ..... Error: inflate() returned -3 but in my case Error is Uncompresssing Kernel Image.....Error: Bad gzipped data i also tried to by giving higher address to download the compressed image as in FAQ, still my problem is not solved. please give me solution to solve the above mentioned problem. Regards, Gurumurthy On Fri, Feb 6, 2009 at 4:47 PM, Jean-Michel Hautbois <jhautbois(a)gmail.com>wrote: > 2009/2/6 Gurumurthy Gowdar <gurumurthy.gm(a)gmail.com> > >> ## Booting image at 00100000 ... >> Image Name: linux_svme7447a >> Created: 2009-02-05 16:57:46 UTC >> Image Type: PowerPC Linux Kernel Image (gzip compressed) >> Data Size: 1342088 Bytes = 1.3 MB >> Load Address: 00000000 >> Entry Point: 00000000 >> Verifying Checksum ... OK >> Uncompressing Kernel Image ... Error: Bad gzipped data >> GUNZIP ERROR - must RESET board to recover >> >> > >> > See http://www.denx.de/wiki/view/DULG/LinuxUncompressingError >> > >> > >> > Note that you are supposed to read the FAQ before posting. >> > >> >> > > Did you read the FAQ like Wolfgang suggested ? > Your error is described ! > Your kernel is stored at 0x100000 and its size, starting at 0 is over > 100000. > You are currently writing your kernel image while trying to uncompressing > it. > > Best Regards, > JM > -- Gurumurthy Gowdar -- Gurumurthy Gowdar

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[U-Boot] [PATCH] Blackfin: disable syscontrol code for now
by Mike Frysinger 19 Feb '09

19 Feb '09

Looks like the initcode updates fell out of order during my merges. The patch that really fixes up this code is part of power-on overhaul and so is too large for merging at this point. Instead, we can disable the code as no currently in-tree board depends on it. The next merge window will fix things up properly. Signed-off-by: Mike Frysinger <vapier(a)gentoo.org> --- cpu/blackfin/initcode.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/cpu/blackfin/initcode.c b/cpu/blackfin/initcode.c index ae0016d..3f3b479 100644 --- a/cpu/blackfin/initcode.c +++ b/cpu/blackfin/initcode.c @@ -264,6 +264,7 @@ void initcode(ADI_BOOT_DATA *bootstruct) * the memory controller. Older bootroms lacks such helpers * so we do it ourselves. */ +#define BOOTROM_CAPS_SYSCONTROL 0 if (BOOTROM_CAPS_SYSCONTROL) { serial_putc('S'); -- 1.6.1.3

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[U-Boot] Strange data behaviour
by Remco Poelstra 19 Feb '09

19 Feb '09

Hi, I'm trying to get my LPC2468 based board to work. I've some problems with the external memory databus. I would like to know the settings of internal registers to see whether I've initialized them correctly, so I tried making a function that prints the content over the serial link. I'm still in the lowlevel_init function, so I do not have the U-boot puts functions available. I wrote the following function to convert a long to a HEX string: ------------------- void print_long(unsigned long data) { char i; char hex_data[]={'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'}; for(i=0; i<8; i++) { while((U0LSR & (1<<5)) == 0); /* Wait for empty U0THR */ // U0THR = hex_data[(0xDEADBEEF>>i*4)&0xF]; U0THR = hex_data[(0xDEADBEEF>>4)&0xF]; } } --------------- When I run it likes this I get 8 E's. Which is what I expect. When I run it with the commented-out line, I get back 8 0x0's. So it seems that the output is only correct when it is constant. Does anyone have a clue on why that is? Kind regards, Remco Poelstra

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[U-Boot] [PATCH] README: remove duplicate entry
by Kim Phillips 19 Feb '09

19 Feb '09

it's been around since the original commit (2ad6b513) that added two identical entries. Signed-off-by: Kim Phillips <kim.phillips(a)freescale.com> --- README | 4 ---- 1 files changed, 0 insertions(+), 4 deletions(-) diff --git a/README b/README index 48d3f6d..43fb1c0 100644 --- a/README +++ b/README @@ -2630,10 +2630,6 @@ Low Level (hardware related) configuration options: Only for 83xx systems. If specified, then DDR should be configured using CS0 and CS1 instead of CS2 and CS3. -- CONFIG_SYS_83XX_DDR_USES_CS0 - Only for 83xx systems. If specified, then DDR should - be configured using CS0 and CS1 instead of CS2 and CS3. - - CONFIG_ETHER_ON_FEC[12] Define to enable FEC[12] on a 8xx series processor. -- 1.6.1.3

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