There are two blobs embedded into the u-boot image which are linked to run
at an address which is different from where they actually end up in the
ROM, one called "realmode" and one called "bios". There are realmode_setup
and bios_setup functions which prepare those blobs by copying them into the
location they're supposed to run from, among other things.
During u-boot relocation from ROM to RAM, the text and a few data segments
are copied over. The realmode and bios sections are not copied, and so the
only place they can be read from is their original location in the ROM.
Looking specifically at the bios blob, there are symbols defined in the
linker script called __bios_start and __bios_size which are defined to be
the start and size of the blob in the ROM.
In the bios_setup function, there seem to be two mistakes happening. First,
the offset from ROM to RAM is being added to __bios_start which implies that
this code expects to use the copy moved to RAM. No such copy is made, so
that's wrong. More subtly, when u-boot relocates itself, it goes through
all of the relocations stored in .rel.dyn and fixes them up. This has the
effect of transforming the __bios_start reference in bios_setup so that it
refers to the version in RAM (if one existed) instead of the one in ROM. To
correct for that, the offset actually needs to be subtracted out again to
translate the address back into the ROM.
The net effect is that for both blobs, a + needs to be changed to a -.
Signed-off-by: Gabe Black <gabeblack@chromium.org>
By adding a multiboot header, U-Boot can be loaded by GRUB2. Using GRUB2 to
bootstrap U-Boot is useful for using an existing BIOS to get an initial
U-Boot port up and running before implementing the low-level reset vector
code, SDRAM init, etc. and overwriting the BIOS
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
common/menu.c used printf() in a number of places to print user
provided, constant strings (like the "title" string). printf() is
dangerous here for example in case the user unwittingly embeds some
'%' caracters that printf() would interpret as formatting and then
pick up random arguments. Use puts() instead.
We also omit the trailing ':' in the title line - if a user wants
this, he can provide it as part of the title string.
Signed-off-by: Wolfgang Denk <wd@denx.de>
The mx31pdk can boot only from NAND and the target was
already updated in boards.cfg. mx31pdk_nand is obsolete
and is dropped.
Signed-off-by: Stefano Babic <sbabic@denx.de>
Fix parameters order in write_dataflash() function extern declaration in
the header file.
Parameters order, as in function definition, should be:
addr_dest, addr_src, size.
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
This patch replaces the HAWKBOARD_KICK{0,1}_UNLOCK defines by
DV_SYSCFG_KICK{0,1}_UNLOCK.
The kick register values are not hawkboard specific but may be used
for all davinci boards. In commit f3c149d6c6
new defines for these values wer introduced.
Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
Cc: Syed Mohammed Khasim <sm.khasim@gmail.com>
Cc: Sughosh Ganu <urwithsughosh@gmail.com>
Cc: Sandeep Paulraj <s-paulraj@ti.com>
This patch fixes the build breakage for the davinci_sonata board.
Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
Cc: Sergey Kubushyn <ksi@koi8.net>
Cc: Sandeep Paulraj <s-paulraj@ti.com>
This patch fixes the build breakage for the davinci_schmoogie board.
Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
Cc: Sergey Kubushyn <ksi@koi8.net>
Cc: Sandeep Paulraj <s-paulraj@ti.com>
MACH_TYPE_FARADAY was dropped from mach-types.h. Add it back to
board config file.
Signed-off-by: Yan-Pai Chen <ypchen@faraday-tech.com>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
There is no need to have such a function twice.
Signed-off-by: Alexander Holler <holler@ahsoftware.de>
Acked-by: Dirk Behme <dirk.behme@googlemail.com>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Change my old email address which is no longer valid.
Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
* 'master' of git://git.denx.de/u-boot-mmc:
Revert "mmc: retry the cmd8 to meet 74 clocks requirement in the spec"
mmc: mv_sdhci: Fix host version read for Armada100
As a result of the commit 6833260 the uart16550 driver
is broken for Microblaze big endian systems, because of
the missing 3 byte offset. Other than as described, not
all U-Boot BSP will treat properly the 3 byte offset.
This why prefer to mask out the 3 byte offset in general
and setup correct _REG_SIZE value depending on edianess.
Signed-off-by: Stephan Linz <linz@li-pro.net>
Tested-by: Michal Simek <monstr@monstr.eu>
cmd_nvedit.c: In function 'do_env_grep':
cmd_nvedit.c:182:3: warning: suggest parentheses around assignment used as truth value
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Fix:
x86emu/ops2.c: In function 'x86emuOp2_set_byte':
x86emu/ops2.c:171:11: warning: variable 'name' set but not used [-Wunused-but-set-variable]
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This reverts commit 02f3029f18.
This patch add 3 times retry to CMD8 because the Marvell mmc controller
doesn't obey the power ramp up process in the SD specification 6.4.1.
(Please refer to figure 6.1 and 6.2 in the specification.)
The CMD0 should be send after power ramp up has been finished.
However, the Marvell mmc contorller must do power ramp up after the
first CMD0 command has been send.
This patch also affect existing platforms like Nokia N900 and other
platforms.
Signed-off-by: Macpaul Lin <macpaul@andestech.com>
Acked-by: Lei Wen <leiwen@marvell.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
sdhci_readw does not work for host version read in Armada100 series
SoCs. This patch fix this issue by making a sdhci_readl call to get host
version.
Signed-off-by: Ajay Bhargav <ajay.bhargav@einfochips.com>
Add the 1920x1080 and 1280x720 resolution support.
Signed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com>
Acked-by: Timur Tabi <timur@freescale.com>
CC: Anatolij Gustschin <agust@denx.de>
Fix:
davinci_i2c.c: In function 'flush_rx':
davinci_i2c.c:81:6: warning: variable 'dummy' set but not used
[-Wunused-but-set-variable]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Acked-by: Heiko Schocher <hs@denx.de>
There are some magic constants in this drivers, which I cannot
fixup ... Eran, can you help here?
Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Eran Man <eran@nbase.co.il>
This supports I2C of Renesas SH.
I tested on SH7724.
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
CC: Heiko Schocher <hs@denx.de>
Fix:
flash.c: In function 'flash_erase':
flash.c:223:6: warning: variable 'flag' set but not used
[-Wunused-but-set-variable]
flash.c: In function 'write_data':
flash.c:392:6: warning: variable 'flag' set but not used
[-Wunused-but-set-variable]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Fix:
mx1ads.c: In function 'board_early_init_f':
mx1ads.c:83:24: warning: variable 'tmp' set but not used
[-Wunused-but-set-variable]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Fix:
syncflash.c: In function 'SF_SR':
syncflash.c:60:10: warning: variable 'tmp1' set but not used
[-Wunused-but-set-variable]
syncflash.c: In function 'SF_PrechargeAll':
syncflash.c:96:6: warning: variable 'tmp' set but not used
[-Wunused-but-set-variable]
mx1ads.c: In function 'board_early_init_f':
mx1ads.c:83:24: warning: variable 'tmp' set but not used
[-Wunused-but-set-variable]
syncflash.c: In function 'SF_Erase':
syncflash.c:112:6: warning: variable 'tmp' set but not used
[-Wunused-but-set-variable]
syncflash.c: In function 'flash_init':
syncflash.c:155:6: warning: variable 'tmp' set but not used
[-Wunused-but-set-variable]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Fix:
flash.c: In function 'flash_erase':
flash.c:223:6: warning: variable 'flag' set but not used [-Wunused-but-set-variable]
flash.c: In function 'write_data':
flash.c:392:6: warning: variable 'flag' set but not used [-Wunused-but-set-variable]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Fix:
cs8900.c: In function 'get_reg_init_bus':
cs8900.c:69:14: warning: variable 'c' set but not used
[-Wunused-but-set-variable]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Fix:
cpuinfo.c: In function 'print_cpuinfo':
cpuinfo.c:155:6: warning: variable 'system_serial_low' set but not used
[-Wunused-but-set-variable]
cpuinfo.c:154:6: warning: variable 'system_serial_high' set but not used
[-Wunused-but-set-variable]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Fix:
lan91c96.c: In function 'dump_memory_info':
lan91c96.c:157:7: warning: variable 'mem_info' set but not used
[-Wunused-but-set-variable]
lan91c96.c: In function 'smc_send_packet':
lan91c96.c:320:16: warning: variable 'ioaddr' set but not used
[-Wunused-but-set-variable]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Fix:
pm9263.c: In function 'pm9263_lcd_hw_psram_init':
pm9263.c:167:20: warning: variable 'x' set but not used
[-Wunused-but-set-variable]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Fix:
samsung.c: In function 's3c_onenand_check_lock_status':
samsung.c:486:6: warning: variable 'tmp' set but not used
[-Wunused-but-set-variable]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
