Commit Graph

15345 Commits

Author SHA1 Message Date
Paul Gortmaker
5f4c6f0db9 sbc8548: Fix LBC SDRAM initialization settings
These were cloned from the mpc8548cds platform which has
a different memory layout (1/2 the size).  Set the values
by comparing to the register file for the board used during
JTAG init sequence:

	LSDMR1		0x2863B727	/* PCHALL */
	LSDMR2		0x0863B727	/* NORMAL */
	LSDMR3		0x1863B727	/* MRW    */
	LSDMR4		0x4063B727	/* RFEN   */

This differs from what was there already in that the RFEN is
not bundled in all four steps implicitly, but issued once
as the final step.

The other difference seen when comparing vs. the register file init,
is that since the memory is split across /CS3 and /CS4, the dummy
writes need to go to 0xf000_0000 _and_ to 0xf400_0000.

We also rewrite the final LBC SDRAM inits as macros, as there is
no real need for them to be a local variable that is modified
on the fly at runtime.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-11 13:59:03 -06:00
Paul Gortmaker
f0aec4ea33 sbc8548: enable ability to boot from alternate flash
This board has an 8MB soldered on flash, and a 64MB SODIMM
flash module.  Normally the board boots from the 8MB flash,
but the hardware can be configured for booting from the 64MB
flash as well by swapping CS0 and CS6.  This can be handy
for recovery purposes, or for supporting u-boot and VxBoot
at the same time.

To support this in u-boot, we need to have different BR0/OR0
and BR6/OR6 settings in place for when the board is configured
in this way, and a different TEXT_BASE needs to be used due
to the larger sector size of the 64MB flash module.

We introduce the suffix _8M and _64M for the BR0/BR6 and the
OR0/OR6 values so it is clear which is being used to map what
specific device.

The larger sector size (512k) of the alternate flash needs
a larger malloc pool, otherwise you'll get failures when
running saveenv, so bump it up accordingly.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-11 13:58:14 -06:00
Paul Gortmaker
3fd673cf36 sbc8548: relocate 64MB user flash to sane boundary
The current situation has the 64MB user flash at an awkward
alignment; shifted back from 0xfc00_0000 by 8M, to leave an 8MB hole
for the soldered on boot flash @ EOM.  But to switch to optionally
supporting booting off the 64MB flash, the 64MB will then be mapped
at the sane address of 0xfc00_0000.

This leads to awkward things when programming the 64MB flash prior
to transitioning to it -- i.e. even though the chip spans from
0xfb80_0000 to 0xff7f_ffff, you would have to program a u-boot image
into the two sectors from 0xfbf0_0000 --> 0xfbff_ffff so that it was
in the right place when JP12/SW2.8 were switched to make the 64MB on
/CS0. (i.e. the chip is only looking at the bits in mask 0x3ff_ffff)

We also have to have three TLB entries responsible for dealing with
mapping the 64MB flash due to this 8MB of misalignment.

In the end, there is address space from 0xec00_0000 to 0xefff_ffff
where we can map it, and then the transition from booting from one
config to the other will be a simple 0xec --> 0xfc mapping.  Plus we
can toss out a TLB entry.

Note that TLB0 is kept at 64MB and not shrunk down to the 8MB boot
flash; this means we won't have to change it when the alternate
config uses the full 64MB for booting, in TLB0.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-11 13:58:10 -06:00
Paul Gortmaker
af35be6ac9 Revert "SBC8548: fix address mask to allow 64M flash"
This reverts commit ccf1ad535a.

The commit "SBC8548: fix address mask to allow 64M flash"
essentially made this change:

  * OR6:
- *    Addr Mask = 64M = OR6[0:16] = 1111 1100 0000 0000 0
+ *    Addr Mask = 64M = OR6[0:16] = 1111 1000 0000 0000 0

But this makes no sense, as section 13.3.1.2.1 in the
MPC8548ERM v2 clearly indicates the masks:

	1111_1111_1000_0000_0	8 Mbytes
	1111_1100_0000_0000_0	64 Mbytes
	1111_1000_0000_0000_0	128 Mbytes

So the original value was correct, and the commit was invalid,
causing a 128MB mapping for a 64MB flash device.  The problem
rears its head when trying to configure u-boot to have access
to both flash, since the default memory map is:

	FB80_0000 – FF7F_FFFF 32-bits 64MB FLASH SODIMM
	FF80_0000 – FFFF_FFFF 8-bits 8MB FLASH

By extending the mapping of the 64MB flash to 128MB, it now
conflicts with the normal 8MB boot flash, causing issues.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-11 13:58:07 -06:00
Paul Gortmaker
1667013ddf MPC85xxCDS: Fix missing LCRR_DBYP bits for 66-133MHz LBC
These boards were meaning to deploy this value:

  #define LCRR_DBYP        0x80000000

but were missing a zero, and hence toggling a bit that
lands in an area marked as reserved in the 8548 reference
manual.

According to the documentation, LCRR_DBYP should be used as:

   PLL bypass. This bit should be set when using low bus
   clock frequencies if the PLL is unable to lock.  When in
   PLL bypass mode, incoming data is captured in the middle
   of the bus clock cycle.  It is recommended that PLL bypass
   mode be used at frequencies of 83 MHz or less.

So the impact would most likely be undefined behaviour for
LBC peripherals on boards that were running below 83MHz LBC.
Looking at the actual u-boot code, the missing DBYP bit was
meant to be deployed as follows:

      Between 66 and 133, the DLL is enabled with an
      override workaround.

In the future, we'll convert all boards to use the symbolic
DBYP constant to avoid these "count the zeros" problems, but
for now, just fix the impacted boards.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-11 13:57:56 -06:00
Kyle Moffett
0ecb55132b eXMeritus HWW-1U-1A: Add support for the AT24C128N I2C EEPROM
This EEPROM is hardware-write-protected and used to persist key
information such as the serial number and MAC addresses even if the
primary environment sector in NOR FLASH is overwritten.

During manufacturing, the environment is initialized from Linux and then
the key parameters copied to the EEPROM via U-Boot:

  env export -c -s 0x2000 $loadaddr serial# macaddr mac1addr mac2addr
  eeprom write $loadaddr 0x0000 0x2000

The chip is then locked via hardware for delivery.

When doing a field U-Boot upgrade, the environment is erased and reset
to the defaults to avoid problems with "hwconfig" changes, etc.  After
loading the new U-Boot image, the hardware data is reloaded:

  i2c dev 0
  eeprom read $loadaddr 0x0000 0x2000
  env import -c $loadaddr 0x2000
  saveenv

The first three commands are saved in the "restore_eeprom" variable for
user convenience.  (EG: "run restore_eeprom && saveenv")

Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com>
Cc: Andy Fleming <afleming@gmail.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-11 13:57:53 -06:00
Kyle Moffett
7985f7e3ff eXMeritus HWW-1U-1A: Minor environment variable tweaks
Most of the ethernet connections are internal links with specialized
hardware and are not useful for "dhcp" or general-purpose networking;
U-Boot should not be cycling through them.  Force the primary external
network interface in "ethprime" and disable the interface cycling with
"ethrotate=no".

Additionally, the environment variable "preboot" has its own config
option and means something entirely different from what the HWW-1U-1A
variable was intended for.  Rename the board variable to "setbootargs"
to avoid potential confusion.

Finally, fix an incorrect address for the kernel in FLASH memory.

Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com>
Cc: Andy Fleming <afleming@gmail.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-11 13:57:51 -06:00
Rob Herring
9a420986cc ARM: highbank: enable networking and pxe
This enables the XGMAC ethernet driver and networking related config
options.

Signed-off-by: Jason Hobbs <jason.hobbs@calxeda.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-01-05 20:10:38 +01:00
Rob Herring
efdd731957 net: add Calxeda xgmac driver
This adds ethernet driver for Calxeda xgmac found on Highbank SOC.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>

Fix: WARNING: __aligned(size) is preferred over
__attribute__((aligned(size)))
Signed-off-by: Wolfgang Denk <wd@denx.de>
2012-01-05 20:10:38 +01:00
David Wagner
dbee61db43 Correctly handle input files beginning with several newlines
Also, fix some comments (minor)

Signed-off-by: David Wagner <david.wagner@free-electrons.com>
2012-01-05 20:10:38 +01:00
Donggeun Kim
627182ea9d FAT: update the second FAT when writing a file
After susccessful write to the FAT partition,
fsck program may print warning message due to different FAT,
provided that the filesystem supports two FATs.

This patch makes the second FAT to be same with the first one
when writing a file.

Signed-off-by: Donggeun Kim <dg77.kim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2012-01-05 20:10:38 +01:00
Kyle Moffett
5dd95cf93d usb_storage: Fix EHCI "out of buffer pointers" with CD-ROM
When performing large bulk reads from a CD or DVD using the U-Boot
usb_storage driver, it generates requests of up to 20 blocks at a time.

With a standard 512-byte block size, that is 10240 bytes and within the
limit of U-Boot's EHCI driver (maximum 5 pages at 4k per page).

Unfortunately CD-ROM media has a 2048-byte blocksize, resulting in a
maximum transfer size of 40960 bytes, which does not fit.

Since the EHCI specification is impossibly obtuse and far beyond my
comprehension, I chose to dynamically compute the limit based on the
blocksize.

Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com>
2012-01-05 20:10:38 +01:00
Kyle Moffett
46236b1407 fs/fat: Improve error handling
The FAT filesystem fails silently in inexplicable ways when given a
filesystem with a block-size that does not match the device sector size.
In theory this is not an unsupportable combination but requires a major
rewrite of a lot of the filesystem.  Until that occurs, the filesystem
should detect that scenario and display a helpful error message.

This scenario in particular occurred on a 512-byte blocksize FAT fs
stored in an El-Torito boot volume on a CD-ROM (2048-byte sector size).

Additionally, in many circumstances the ->block_read method will not
return a negative number to indicate an error but instead return 0 to
indicate the number of blocks successfully read (IE: None).

The FAT filesystem should defensively check to ensure that it got all of
the sectors that it asked for when reading.

Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com>
2012-01-05 20:10:37 +01:00
Kyle Moffett
9813b750f3 fs/fat: Fix FAT detection to support non-DOS partition tables
The FAT filesystem code currently ends up requiring that the partition
table be a DOS MBR, as it checks for the DOS 0x55 0xAA signature on the
partition table (which may be Mac, EFI, ISO9660, etc) before actually
computing the partition offset.

This fixes support for accessing a FAT filesystem in an ISO9660 boot
volume (El-Torito format) by reordering the filesystem checks and
reading the 0x55 0xAA "DOS boot signature" and FAT/FAT32 magic number
from the first sector of the partition instead of from sector 0.

Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com>

Fix build warning:  fat.c: In function 'fat_register_device':
fat.c:66:15: warning: variable 'found_partition' set but not used
[-Wunused-but-set-variable]
Signed-off-by: Wolfgang Denk <wd@denx.de>
2012-01-05 20:10:06 +01:00
Simon Glass
26784f1ecb ext2: Cache line align indirection buffers
Make ext2 use cache line aligned buffers for reading from the filesystem.
This is needed when caches are enabled because unaligned cache invalidates
are not safe.

Signed-off-by: Simon Glass <sjg@chromium.org>
2012-01-05 17:12:11 +01:00
Grant Erickson
aa701b9433 tools/env: allow overwrite of ethaddr on default
This patch allows the U-Boot user space companion utility, fw_setenv,
to overwrite the 'ethaddr' key/value pair if the current value is set
to a per-board-configured default.

This change allows 'fw_setenv' to match the behavior of 'setenv' /
'env set' on the U-Boot command line.

Signed-off-by: Grant Erickson <marathon96@gmail.com>
Fixed excessive white space.
Signed-off-by: Wolfgang Denk <wd@denx.de>
2012-01-05 17:00:01 +01:00
Wolfgang Denk
145afab32c Merge branch 'master' of git://git.denx.de/u-boot-arm
* 'master' of git://git.denx.de/u-boot-arm:
  tegra2: Optimize out-of-tree build for Ventana.
  tegra: Move boards over to use arch-level board UART function
  tegra: Add support for UART init in cpu board.c
  tegra: Add a function mux feature
  tegra: add clock_ll_start_uart() to enable UART prior to reloc
  tegra: Move clock_early_init() to arch_cpu_init()
  tegra: Move cpu_init_cp15() to arch_cpu_init()
  arm: Tegra: Fix Harmony and Ventana builds in u-boot-tegra/master
  tegra: Fix build error in plutux, medcom
  tegra2: Add Avionic Design Medcom support.
  tegra2: Add Avionic Design Plutux support.
  tegra2: Add common Avionic Design Tamonten support.
  tegra2: Move tegra2_mmc_init() prototype to public header.
  tegra2: Change CONFIG_SYS_TEXT_BASE to 0x00108000.
  tegra2: Always build with USE_PRIVATE_LIBGCC=yes.
  tegra2: Plumb in SPI/UART switch code
  tegra2: spi: Support SPI / UART switch
  tegra2: Implement SPI / UART GPIO switch
  tegra2: Enable SPI environment on Seaboard
  tegra2: config: Enable SPI flash on Seaboard
  tegra2: spi: Add SPI driver for Tegra2 SOC
  tegra2: Add UARTB support
  tegra2: Tidy UART selection
  arm, davinci: Fix build warnings for cam_enc_4xx
  Devkit8000: Switch over to enable_gpmc_cs_config
  arm, davinci: Add support for generating AIS images to the Makefile
  mkimage: Fix variable length header support
  arm, da850evm: Add an SPL for SPI boot
  arm, davinci: Add SPL support for DA850 SoCs
  sf: Add spi_boot() to allow booting from SPI flash in an SPL
  spl: display_options.o is required for SPI flash support in SPL
  ARM: omap3: add support to Technexion twister board
  ARM: omap3: added common configuration for Technexion TAM3517
  vision2: Fix checkpatch warning
2012-01-05 16:38:50 +01:00
Horst Kronstorfer
72ebafbe2b tools/mkenvimage.c: Fix a merge issue
With bfcc40bb09 'optopt' was reverted.

Signed-off-by: Horst Kronstorfer <hkronsto@frequentis.com>
2012-01-05 16:36:44 +01:00
Igor Grinberg
6f403bad80 env: remove value from boolean defines
Several boolean defines have a value assigned.
Remove the value as defining the symbol is enough.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2012-01-05 16:35:54 +01:00
Igor Grinberg
914c9ee971 common.h: remove value from bool defines
Several boolean defines have a value assigned.
Remove the value as defining the symbol is enough.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2012-01-05 16:35:29 +01:00
Igor Grinberg
bf95df44ff env: factor out the env_get_char_spec() function
env_get_char_spec() function is duplicated across multiple environment
files.
Remove the duplication by providing a default implementation.
Add "weak" declaration, so the default implementation can be overridden.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
2012-01-05 16:34:10 +01:00
Stefano Babic
33e1e01820 fpga: Spartan-3: let print the progress if configured
CONFIG_SYS_FPGA_PROG_FEEDBACK was already introduced to print
the current status of FPGA loading - an undef in the code made this
CONFIG_ useless.

Signed-off-by: Stefano Babic <sbabic@denx.de>
2012-01-05 16:20:12 +01:00
Stefano Babic
06297db066 FPGA: use debug() instead of module debug printf
Replace also __FUNCTION__ with standard __func__

Signed-off-by: Stefano Babic <sbabic@denx.de>
2012-01-05 16:19:20 +01:00
Stefano Babic
28cdc1c8e2 fpga: add definition for Xilinx Spartan-6 XC6SLX4
Signed-off-by: Stefano Babic <sbabic@denx.de>
2012-01-05 16:18:30 +01:00
Vladimir Zapolskiy
b6abf55578 phy: add phy_smsc_init() declaration
This trivial change removes a compilation warning:
  ----8<----
  phy.c: In function 'phy_init':
  phy.c:448:2: warning: implicit declaration of function 'phy_smsc_init'
  ----8<----

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
2012-01-05 16:12:26 +01:00
Frans Meulenbroeks
5d5cc38461 fw_env.h: added a few missing defines
The README file lists 4 defined that were not actually present in the .h
file but that were needed to get things working with settings compiled in.
They are
Added these to the .h file
(the values above are the ones from the README file)

Signed-off-by: Frans Meulenbroeks <fransmeulenbroeks@gmail.com>
2012-01-05 16:07:42 +01:00
Sergei Shtylyov
bf34e7d952 fat: reset VFAT short alias checksum on first match
The VFAT short alias checksum read from a long file name is only overwritten
when another long file name appears in a directory list. Until then it renders
short file names invisible that have the same checksum. Reset the checksum on
first match.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Martin Mueller <martin.mueller5@de.bosch.com>
2012-01-05 16:03:24 +01:00
Tom Rini
2620368a61 git-mailrc: Add self to davinci/omap, add ti
Adding a 'ti' alias since not all parts are "omap" or "davinci" and
adding myself to that alias as co-custodian of u-boot-ti

Signed-off-by: Tom Rini <trini@ti.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2012-01-05 15:59:47 +01:00
Thierry Reding
a747cc0a8c tegra2: Optimize out-of-tree build for Ventana.
As proposed by Mike Frysinger, mkdir can take more than one argument.
Instead of spawning two processes, create both the common and seaboard
directories in one go.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-24 10:23:32 +01:00
Simon Glass
f46a945653 tegra: Move boards over to use arch-level board UART function
Now that we can set up the UART in common tegra code, make the boards
use it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-24 10:23:32 +01:00
Simon Glass
bb6997f840 tegra: Add support for UART init in cpu board.c
We add a way of initialising the selected of UARTs prior to relocation.
Boards can use the board_init_uart_f() instead of repeating this code
themselves.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-24 10:23:32 +01:00
Simon Glass
b5a5b35197 tegra: Add a function mux feature
funcmux permits selection of config options for particular peripherals,
such as the pins that are used for that peripheral, if there are several
options.

Add UART selection to start with.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-24 10:23:32 +01:00
Simon Glass
8442fd3c6a tegra: add clock_ll_start_uart() to enable UART prior to reloc
Most boards will want to enable a UART early. This function provides
that feature in Tegra architecture code so the code does not need to be
copied on every board.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-24 10:23:32 +01:00
Simon Glass
905ed41aad tegra: Move clock_early_init() to arch_cpu_init()
The clock init is not board specific, so move it into
the cpu code.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-24 10:23:32 +01:00
Simon Glass
ccdd6eaecb tegra: Move cpu_init_cp15() to arch_cpu_init()
This call is more of an architecture requirement than a board
one, so move it there.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-24 10:23:32 +01:00
Tom Warren
5b37bd3afd arm: Tegra: Fix Harmony and Ventana builds in u-boot-tegra/master
Seaboard changes have removed the need for common/board.o in the
Makefile. Propagate this change to the other Tegra2 builds.

Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-24 10:23:32 +01:00
Simon Glass
a783bdb870 tegra: Fix build error in plutux, medcom
We need to define CONFIG_ENV_IS_NOWHERE to avoid this error:

cmd_nvedit.c:69:3: error: #error Define one of CONFIG_ENV_IS_IN_...

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-24 10:23:32 +01:00
Thierry Reding
c91915e905 tegra2: Add Avionic Design Medcom support.
The Medcom is a 16:9 15" terminal that is used for patient infotainment
in hospitals.

Changes in v3:
  * Remove unused implementation of gpio_config_uart().
  * Implement MMC/SD card detection.
  * Drop board_mmc_getcd() which is now implemented by common Tegra2
    code.
  * Add MAINTAINERS entry.

Changes in v2:
  * No longer override the default CONFIG_SYS_TEXT_BASE setting.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-24 10:23:32 +01:00
Thierry Reding
4026aca6d6 tegra2: Add Avionic Design Plutux support.
The Plutux is a set-top box device based on the Tamonten processor
module. It can be connected to a display via an HDMI output.

Changes in v3:
  * Remove unused implementation of gpio_config_uart().
  * Implement MMC/SD card detection.
  * Drop board_mmc_getcd() which is now implemented by common Tegra2
    code.
  * Add MAINTAINERS entry.

Changes in v2:
  * No longer override the default CONFIG_SYS_TEXT_BASE setting.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-24 10:23:31 +01:00
Thierry Reding
b1c0c73619 tegra2: Add common Avionic Design Tamonten support.
Tamonten is an NVIDIA Tegra2-based SO-DIMM processor module that is
derived from the Harmony reference design.

Changes in v3:
  * Remove unused gpio_config_uart().
  * Remove call to tegra2_start().
  * Use new tegra2_mmc_init().

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-24 10:23:31 +01:00
Thierry Reding
977a39e600 tegra2: Move tegra2_mmc_init() prototype to public header.
tegra2_mmc_init() is implemented by the Tegra2 MMC driver. Since most of
the Tegra2-based boards will need to call it, this commit exports it in
the new public asm/arch/mmc.h header file to prevent each board from
providing its own prototype.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-24 10:23:31 +01:00
Thierry Reding
0350c6b924 tegra2: Change CONFIG_SYS_TEXT_BASE to 0x00108000.
NVIDIA's flashing tools assume that the bootloader is loaded at address
0x00108000. Instead of requiring non-standard builds of those tools
which allow a load address of 0x00E08000, this commit just switches all
Tegra2 boards to use the standard load address.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-24 10:23:31 +01:00
Thierry Reding
09743ba635 tegra2: Always build with USE_PRIVATE_LIBGCC=yes.
The AVP on Tegra2 doesn't boot properly when U-Boot is linked against
the GCC provided libgcc. To work around this, always build and link
against a private libgcc for Tegra2-based boards.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-24 10:23:31 +01:00
Simon Glass
a04eba99f5 tegra2: Plumb in SPI/UART switch code
On Seaboard the UART and SPI interfere with each other. This causes the UART
to receive spurious zero bytes after SPI transactions and also means that
SPI can corrupt a few output characters when it starts up if they are still
in the UART buffer.

This updates the board to use the SPI/UART switch to avoid the problem.

For now this feature is turned off since it needs changes to the NS16550
UART to operate.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-24 10:23:31 +01:00
Simon Glass
4560c7decc tegra2: spi: Support SPI / UART switch
Add the SPI / UART switch logic into the Tegra2 SPI driver so that it
can co-exist with the NS16550 UART.

We need the ns16550.h header for NS16550_t for now.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-24 10:23:31 +01:00
Simon Glass
cb93481268 tegra2: Implement SPI / UART GPIO switch
The Tegra2 Seaboard has the unfortunate feature that SPI and the console
UART are multiplexed on the same pins. We need to switch between one
and the other during SPI and console activity.

This new file implements a switch and keeps track of which peripheral
owns the pins. It also flips over the controlling GPIO as needed

Since we are adding a second file to board/nvidia/common, we create
a proper Makefile there and remove the direct board.o include from
board/nvidia/seaboard/Makefile

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-24 10:23:31 +01:00
Simon Glass
9dd79fdb6c tegra2: Enable SPI environment on Seaboard
This uses the SPI flash on Seaboard to store an 8KB environment.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-24 10:23:31 +01:00
Simon Glass
bf80088ac0 tegra2: config: Enable SPI flash on Seaboard
The Seaboard includes a Winbond 4MB flash part.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-24 10:23:31 +01:00
Tom Warren
9112ef8d89 tegra2: spi: Add SPI driver for Tegra2 SOC
This driver supports SPI on Tegra2, running at 48MHz.

Signed-off-by: Tom Warren <twarren@nvidia.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2011-12-24 10:23:30 +01:00
Simon Glass
1be0d75973 tegra2: Add UARTB support
UARTB is used on some boards, so support it here.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2011-12-24 10:23:30 +01:00