oweals/u-boot.git
11 years agoARM: add wfi assembly macro
Rob Herring [Sun, 2 Dec 2012 17:06:21 +0000 (17:06 +0000)]
ARM: add wfi assembly macro

Since wfi instruction is only available on ARMv7, add a conditional
macro for it.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
11 years agoarm: rmobile: kzm9g: Adjust ETM trace clock
Tetsuyuki Kobayashi [Tue, 20 Nov 2012 16:29:17 +0000 (16:29 +0000)]
arm: rmobile: kzm9g: Adjust ETM trace clock

Set ETM TRCLK down to 78MHz to get clear wave form.
This patch makes difference only when you use ETM trace connecting JTAG debugger.

Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
Acked-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
11 years agoarm: rmobile: kzm9g: Adjust SDRAM setting
Tetsuyuki Kobayashi [Tue, 20 Nov 2012 16:29:16 +0000 (16:29 +0000)]
arm: rmobile: kzm9g: Adjust SDRAM setting

After stress test, I found some of kzm9g board occures memory failure.
This patch adust SDRAM setting.
- Enlarge drivability on both SDRAM controller and SDRAM itself
- Raise core voltage

Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
Acked-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
11 years agoMerge branch 'u-boot-imx/master' into 'u-boot-arm/master'
Albert ARIBAUD [Sat, 2 Feb 2013 18:29:59 +0000 (19:29 +0100)]
Merge branch 'u-boot-imx/master' into 'u-boot-arm/master'

11 years agomx23evk: Add initial board support
Otavio Salvador [Wed, 23 Jan 2013 10:30:34 +0000 (10:30 +0000)]
mx23evk: Add initial board support

The following features are supported:
 * 128 MB DDR1 SDRAM
 * DUART
 * SD/MMC Card Socket

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
11 years agomx23_olinuxino: Add default environment
Otavio Salvador [Wed, 23 Jan 2013 10:30:33 +0000 (10:30 +0000)]
mx23_olinuxino: Add default environment

This adds a default environment with support for MMC booting.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
11 years agomxs: mmc: mx23_olinuxino: Add MMC support
Marek Vasut [Tue, 22 Jan 2013 15:01:05 +0000 (15:01 +0000)]
mxs: mmc: mx23_olinuxino: Add MMC support

Add support for the MMC attached to SSP1.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomxs: mmc: Fix the MMC driver for MX23
Marek Vasut [Tue, 22 Jan 2013 15:01:04 +0000 (15:01 +0000)]
mxs: mmc: Fix the MMC driver for MX23

The MX23 has different layout of DMA channels. Fix the MMC
driver to support MX23.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomxs: mmc: Allow overriding default card detect implementation
Marek Vasut [Tue, 22 Jan 2013 15:01:03 +0000 (15:01 +0000)]
mxs: mmc: Allow overriding default card detect implementation

Some MXS based boards do not implement the card-detect signal. Allow
user to specify alternate card-detect implementation.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomxs: mmc: Fix MMC reset on iMX23
Otavio Salvador [Tue, 22 Jan 2013 15:01:02 +0000 (15:01 +0000)]
mxs: mmc: Fix MMC reset on iMX23

This does the same reset mask as done in v3.7 Linux kernel code.
The block is properly configured for MMC operation that way.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Cc: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomxs: ssp: Add SSP registers map for MX23
Marek Vasut [Tue, 22 Jan 2013 15:01:01 +0000 (15:01 +0000)]
mxs: ssp: Add SSP registers map for MX23

The MX23 SSP register layout differs from MX28 in certain bits,
adjust the register layout accordingly.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomxs: dma: Fix APBH DMA driver for MX23
Marek Vasut [Tue, 22 Jan 2013 15:01:00 +0000 (15:01 +0000)]
mxs: dma: Fix APBH DMA driver for MX23

The MX23 has less channels for the APBH DMA, sligtly different register
layout and some bits in those registers are placed differently. Reflect
this in the driver. This patch fixes MMC/DMA issue on MX23.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomx6qsabrelite: search mii phy address 4-7
Troy Kisky [Mon, 22 Oct 2012 16:40:47 +0000 (16:40 +0000)]
mx6qsabrelite: search mii phy address 4-7

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
11 years agonet: fec_mxc: get phydev before fec_probe
Troy Kisky [Mon, 22 Oct 2012 16:40:46 +0000 (16:40 +0000)]
net: fec_mxc: get phydev before fec_probe

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
11 years agonet: fec_mxc: only call phy_connect in fec_probe
Troy Kisky [Mon, 22 Oct 2012 16:40:45 +0000 (16:40 +0000)]
net: fec_mxc: only call phy_connect in fec_probe

This allows us to create the phydev before calling
fec_probe in later patch.

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
11 years agonet: fec_mxc: use fec_set_dev_name to set name
Troy Kisky [Mon, 22 Oct 2012 16:40:44 +0000 (16:40 +0000)]
net: fec_mxc: use fec_set_dev_name to set name

This allows us to create the phydev before calling
fec_probe in later patch.

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
11 years agophy: add phy_find_by_mask/phy_connect_dev
Troy Kisky [Mon, 22 Oct 2012 16:40:43 +0000 (16:40 +0000)]
phy: add phy_find_by_mask/phy_connect_dev

It is useful to be able to try a range of
possible phy addresses to connect.

Also, an ethernet device is not required
to use phy_find_by_mask leading to better
separation of mii vs ethernet, as suggested
by Andy Fleming.

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
11 years agonet: fec_mxc: have fecmxc_initialize call fecmxc_initialize_multi
Troy Kisky [Mon, 22 Oct 2012 16:40:42 +0000 (16:40 +0000)]
net: fec_mxc: have fecmxc_initialize call fecmxc_initialize_multi

Having only one call to fec_probe will ease the changing of its
parameters.

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
11 years agonet: fec_mxc: change fec_mii_setspeed parameter
Troy Kisky [Mon, 22 Oct 2012 16:40:41 +0000 (16:40 +0000)]
net: fec_mxc: change fec_mii_setspeed parameter

Only the hardware ethernet registers are needed
for this function, so don't pass the more general
structure. I'm trying to separate MII and fec.

This also fixes MX28 fec_mii_setspeed use on secondary ethernet port

This was found by inspection of the code and should be
checked on real hardware.

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
11 years agonet: fec_mxc: delete CONFIG_FEC_MXC_MULTI
Troy Kisky [Mon, 22 Oct 2012 16:40:40 +0000 (16:40 +0000)]
net: fec_mxc: delete CONFIG_FEC_MXC_MULTI

It is more logical to test for CONFIG_FEC_MXC_PHYADDR
to determine whether to define the function fecmxc_initialize.

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
11 years agodoc/README.fec_mxc: add documentation
Troy Kisky [Mon, 22 Oct 2012 16:40:39 +0000 (16:40 +0000)]
doc/README.fec_mxc: add documentation

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
11 years agomxs: Use __weak annotation to simplify code
Fabio Estevam [Tue, 8 Jan 2013 05:21:45 +0000 (05:21 +0000)]
mxs: Use __weak annotation to simplify code

Using the __weak annotation can make the code cleaner.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>
11 years agotools: imximage: Let .name field be more generic
Fabio Estevam [Wed, 2 Jan 2013 08:48:34 +0000 (08:48 +0000)]
tools: imximage: Let .name field be more generic

Since this structure is not i.MX5x specific, remove the '5x' to make it more
generic.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
11 years agomx6qsabre_common: Let mmc partition be board specific
Fabio Estevam [Mon, 14 Jan 2013 08:59:24 +0000 (08:59 +0000)]
mx6qsabre_common: Let mmc partition be board specific

commit 49ea0ff5 (49ea0ff5) introduced CONFIG_SYS_MMC_ENV_PART into mx6qsabresd.h
to store the mmc partition, but in order for it to have effect we should place
it into 'mmcpart' variable.

Also add CONFIG_SYS_MMC_ENV_PART into mx6qsabreauto.h.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
11 years agomx6qsabreauto: enable USB host interface
Knut Wohlrab [Mon, 21 Jan 2013 23:11:21 +0000 (23:11 +0000)]
mx6qsabreauto: enable USB host interface

The USB host interface is routed to plug USB1/J30 on the mother board.

Signed-off-by: Knut Wohlrab <knut.wohlrab@de.bosch.com>
11 years agomxs: Boost the memory power supply
Marek Vasut [Mon, 21 Jan 2013 14:57:03 +0000 (14:57 +0000)]
mxs: Boost the memory power supply

The memory power supply on MX23 didn't pump out enough juice into
the DRAM chip, thus caused occasional memory corruption. Fix this.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
11 years agoimximage.cfg: run files through C preprocessor
Troy Kisky [Fri, 18 Jan 2013 16:14:24 +0000 (16:14 +0000)]
imximage.cfg: run files through C preprocessor

The '#' used as comments in the files cause the preprocessor
trouble, so change to /* */.

The mkimage command which uses this preprocessor output
was moved to arch/arm/imx-common/Makefile

.gitignore was updated to ignore .cfgtmp files.

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
11 years agomxs: Add MX23 quirks into the clock code
Otavio Salvador [Sat, 19 Jan 2013 16:02:49 +0000 (16:02 +0000)]
mxs: Add MX23 quirks into the clock code

The MX23 has different handling of the SSP clock and GPMI NAND clock sources,
add necessary quirks into the clock code to properly handle these.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
11 years agowoodburn: Set Write Protection GPIO as input
Fabio Estevam [Fri, 18 Jan 2013 23:57:45 +0000 (23:57 +0000)]
woodburn: Set Write Protection GPIO as input

Set Write Protection GPIO as input.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
11 years agomxs: Add MX23 olinuxino board support
Marek Vasut [Sat, 12 Jan 2013 07:11:11 +0000 (07:11 +0000)]
mxs: Add MX23 olinuxino board support

This patch adds support for MX23-based Olinuxino board.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomxs: Linux uses ttyAMA0 as DUART
Marek Vasut [Fri, 11 Jan 2013 13:29:42 +0000 (13:29 +0000)]
mxs: Linux uses ttyAMA0 as DUART

Replace use of ttyAM0 with ttyAMA0 as default serial console.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomxs: Fix the memory init for MX23
Otavio Salvador [Fri, 11 Jan 2013 03:19:18 +0000 (03:19 +0000)]
mxs: Fix the memory init for MX23

The memory init is slightly different on MX23, thus split the memory
init for mx23 and mx28 into different functions.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomxs: Add function to ungate the power block on MX23
Marek Vasut [Fri, 11 Jan 2013 03:19:17 +0000 (03:19 +0000)]
mxs: Add function to ungate the power block on MX23

The power block on MX23 must first be ungated before it can be operated.
Add function to MXS power init that ungates it.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Stefano Babic <sbabic@denx.de>
11 years agommc: Limit the number of used SSP ports on MX23
Marek Vasut [Fri, 11 Jan 2013 03:19:14 +0000 (03:19 +0000)]
mmc: Limit the number of used SSP ports on MX23

The MX23 can only use two SSP ports.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Andy Fleming <afleming@freescale.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomx23: config: Enable mxsboot tool for i.MX23 based boards
Otavio Salvador [Fri, 11 Jan 2013 03:19:13 +0000 (03:19 +0000)]
mx23: config: Enable mxsboot tool for i.MX23 based boards

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomx23: config: Enable building of u-boot.sb binary
Otavio Salvador [Fri, 11 Jan 2013 03:19:12 +0000 (03:19 +0000)]
mx23: config: Enable building of u-boot.sb binary

For i.MX23 we need to pass imx23 as elftosb param.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomx23: SPL: Initialize DDR at 133MHz
Otavio Salvador [Fri, 11 Jan 2013 03:19:11 +0000 (03:19 +0000)]
mx23: SPL: Initialize DDR at 133MHz

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomx23: SPL: Add boot mode support
Otavio Salvador [Fri, 11 Jan 2013 03:19:10 +0000 (03:19 +0000)]
mx23: SPL: Add boot mode support

This adds the boot mode support for i.MX23 processors.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomx23: Add boot mode description
Otavio Salvador [Fri, 11 Jan 2013 03:19:09 +0000 (03:19 +0000)]
mx23: Add boot mode description

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomx23: Add support on print_cpuinfo()
Otavio Salvador [Fri, 11 Jan 2013 03:19:08 +0000 (03:19 +0000)]
mx23: Add support on print_cpuinfo()

Add information to identify i.MX23 chips and its known revisions.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomx23: ssp: Fix ssp-regs.h for MX23
Marek Vasut [Fri, 11 Jan 2013 03:19:07 +0000 (03:19 +0000)]
mx23: ssp: Fix ssp-regs.h for MX23

Disable SSP2 and SSP3 ports on MX23.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomx23: Add POWER and CLKCTRL register definitions
Marek Vasut [Fri, 11 Jan 2013 03:19:06 +0000 (03:19 +0000)]
mx23: Add POWER and CLKCTRL register definitions

Add register definitions for the i.MX23 power control block and
clock control block. These are essential for the basic bootstrap
of the i.MX23. Also, properly include them in imx-regs.h .

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomx23: Add iomux-mx23.h
Otavio Salvador [Fri, 11 Jan 2013 03:19:05 +0000 (03:19 +0000)]
mx23: Add iomux-mx23.h

This has been copied from Linux source at revision 786f02b719f.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomx23: Add register base addresses
Otavio Salvador [Fri, 11 Jan 2013 03:19:04 +0000 (03:19 +0000)]
mx23: Add register base addresses

This adds the base addresses of i.MX23 and easy the detection of wrong
order in board setup, in case no SoC has been set, an error is raised
during build.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomxs: clock: Use 'mxs' prefix for methods
Otavio Salvador [Fri, 11 Jan 2013 03:19:03 +0000 (03:19 +0000)]
mxs: clock: Use 'mxs' prefix for methods

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomxs: ssp: Pull out the SSP bus to regs conversion
Marek Vasut [Fri, 11 Jan 2013 03:19:02 +0000 (03:19 +0000)]
mxs: ssp: Pull out the SSP bus to regs conversion

Create function which converts SSP bus number to SSP register pointer.
This functionality is reimplemented multiple times in the code, thus
make one common implementation. Moreover, make it a switch(), since the
SSP ports are not mapped in such nice linear fashion on MX23, therefore
having it a switch will simplify things there.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Andy Fleming <afleming@freescale.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
11 years agomxs: mmc: Drop unused members from struct mxsmmc_priv
Marek Vasut [Fri, 11 Jan 2013 03:19:01 +0000 (03:19 +0000)]
mxs: mmc: Drop unused members from struct mxsmmc_priv

The clock data are not used by the driver, drop them.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Andy Fleming <afleming@freescale.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
11 years agofdt: fix dts preprocessor options
Allen Martin [Tue, 8 Jan 2013 16:07:54 +0000 (16:07 +0000)]
fdt: fix dts preprocessor options

Using "-ansi" preprocessor option will cause dts lines that begin with
'#' to choke the preprocessor.  Change to "-x assembler-with-cpp"
instead which is what the kernel uses to preprocess dts files.

Signed-off-by: Allen Martin <amartin@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
11 years agotegra: fdt: add apbdma node
Allen Martin [Fri, 11 Jan 2013 23:07:04 +0000 (23:07 +0000)]
tegra: fdt: add apbdma node

Add apbdma node for tegra20 and tegra30, copied directly from tegra
Linux dtsi files.

Signed-off-by: Allen Martin <amartin@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
11 years agotegra: fdt: sort dts files
Allen Martin [Wed, 16 Jan 2013 13:12:24 +0000 (13:12 +0000)]
tegra: fdt: sort dts files

Sort nodes in dts files according the the following rules:

1) Any nodes that already exist in any /include/d file, in the order
they appear in the /include/d file.

2) Any nodes with a reg property, in order of their address.

3) Any nodes without a reg property, alphabetically by node name.

Signed-off-by: Allen Martin <amartin@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
11 years agotegra: fdt: remove clocks nodes
Allen Martin [Wed, 16 Jan 2013 13:11:21 +0000 (13:11 +0000)]
tegra: fdt: remove clocks nodes

These nodes are unused.

Signed-off-by: Allen Martin <amartin@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
11 years agotegra: remove IRDA pinmux synonym
Allen Martin [Wed, 9 Jan 2013 10:52:23 +0000 (10:52 +0000)]
tegra: remove IRDA pinmux synonym

IRDA is a synonym for UARTB in tegra pinmux, remove all usage of this
synonym and replace with UARTB to disambiguate.

Signed-off-by: Allen Martin <amartin@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
11 years agoTegra30: I2C: Enable I2C driver on Cardhu
Tom Warren [Fri, 21 Dec 2012 23:09:52 +0000 (16:09 -0700)]
Tegra30: I2C: Enable I2C driver on Cardhu

Tested all 5 'buses', i2c probe enumerates device addresses on all
but dev 4 (I2C4) [no devices on that bus on my Cardhu].

Note that this uses the extant tegra_i2c.c driver w/o modification.

Signed-off-by: Tom Warren <twarren@nvidia.com>
11 years agoTegra30: fdt: Update DT files with I2C info for T30/Cardhu
Tom Warren [Fri, 21 Dec 2012 22:59:15 +0000 (15:59 -0700)]
Tegra30: fdt: Update DT files with I2C info for T30/Cardhu

Note that T30 does not have a separate/different DVC (power I2C)
controller like T20 - all 5 I2C controllers are identical, but
DVC_I2C is still used to designate the controller intended for
power control (PWR_I2C in the schematics). On Cardhu, it's used
to access the PMU and EEPROM, as well as the audio codec, temp
sensor, and fuel gauge devices from the OS.

Signed-off-by: Tom Warren <twarren@nvidia.com>
11 years agoTegra30: clocks: Fix clock tables for I2C and other periphs
Tom Warren [Fri, 21 Dec 2012 22:02:45 +0000 (15:02 -0700)]
Tegra30: clocks: Fix clock tables for I2C and other periphs

Add 16-bit divider support (I2C) to periph table, annotate and
correct some entries, and fix clk_id lookup function.

Signed-off-by: Tom Warren <twarren@nvidia.com>
11 years agoTegra30: Add/enable Cardhu build (T30 reference board)
Tom Warren [Tue, 11 Dec 2012 13:34:18 +0000 (13:34 +0000)]
Tegra30: Add/enable Cardhu build (T30 reference board)

This build is stripped down. It boots to the command prompt.
GPIO is the only peripheral supported. Others TBD.

include/configs/tegra-common.h now holds common config options
for Tegra SoCs.

Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
11 years agoTegra30: Add generic Tegra30 build support
Tom Warren [Tue, 11 Dec 2012 13:34:17 +0000 (13:34 +0000)]
Tegra30: Add generic Tegra30 build support

This patch adds basic Tegra30 (T30) build support - no specific
board is targeted.

Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
11 years agoTegra30: Cardhu: Add DT files
Tom Warren [Tue, 11 Dec 2012 13:34:16 +0000 (13:34 +0000)]
Tegra30: Cardhu: Add DT files

These are stripped down for bringup, They'll be filled out later
to match-up with the kernel DT contents, and/or as devices are
brought up (mmc, usb, spi, etc.).

Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
11 years agoTegra30: Add common CPU (shared) files
Tom Warren [Tue, 11 Dec 2012 13:34:15 +0000 (13:34 +0000)]
Tegra30: Add common CPU (shared) files

These files are used by both SPL and main U-Boot.
Also made minor changes to shared Tegra code to support
T30 differences.

Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
11 years agoTegra30: Add CPU (armv7) files
Tom Warren [Tue, 11 Dec 2012 13:34:14 +0000 (13:34 +0000)]
Tegra30: Add CPU (armv7) files

These files are for code that runs on the CPU (A9) on T30 boards.
At this time, there are no T30-specific ARMV7 files. As T30-specific
run-time code is added, it'll go here.

Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidai.com>
11 years agoTegra30: Add AVP (arm720t) files
Tom Warren [Tue, 11 Dec 2012 13:34:13 +0000 (13:34 +0000)]
Tegra30: Add AVP (arm720t) files

This provides SPL support for T30 boards - AVP early init, plus
CPU (A9) init/jump to main U-Boot.

Some changes were made to Tegra20 cpu.c to move common routines
into tegra-common/cpu.c and reduce code duplication.

Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
11 years agoTegra30: Add arch-tegra30 include files
Tom Warren [Tue, 11 Dec 2012 13:34:12 +0000 (13:34 +0000)]
Tegra30: Add arch-tegra30 include files

Common Tegra files are in arch-tegra, shared between T20 and T30.
Tegra30-specific headers are in arch-tegra30. Note that some of
these will be filled in as more T30 support is added (drivers,
WB/LP0 support, etc.). A couple of Tegra20 files were changed
to support common headers in arch-tegra, also.

Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
11 years agotegra: remove custom TEGRA_DEVICE_SETTINGS for board files
Marc Dietrich [Wed, 28 Nov 2012 23:23:55 +0000 (23:23 +0000)]
tegra: remove custom TEGRA_DEVICE_SETTINGS for board files

TEGRA_DEVICE_SETTINGS lives now in tegra-common-post.h.

This removes custom TEGRA_DEVICE_SETTINGS for all tegra boards providing
video output, except seaboard, which was fixed by Stephen already.

Cc: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
11 years agotegra: enable LCD on PAZ00
Marc Dietrich [Sun, 25 Nov 2012 11:26:12 +0000 (11:26 +0000)]
tegra: enable LCD on PAZ00

This adds LCD panel descriptions to the device tree of PAZ00 and
enables LCD support in the configuration.

Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
11 years agotegra: display: add board pinmux
Marc Dietrich [Sun, 25 Nov 2012 11:26:11 +0000 (11:26 +0000)]
tegra: display: add board pinmux

Boards may require a different pinmux setup for DISPALY than the default one.
Add a way to call into board specific code to set this up.

Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
11 years agotegra: Enable LCD on TEC
Thierry Reding [Fri, 23 Nov 2012 00:58:51 +0000 (00:58 +0000)]
tegra: Enable LCD on TEC

The TEC ships with a 7" LCD panel that provides a resolution of 800x480
pixels. Add a corresponding panel description to the device tree and
enable LCD support in the configuration.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
11 years agotegra: Enable LCD on Medcom-Wide
Thierry Reding [Fri, 23 Nov 2012 00:58:50 +0000 (00:58 +0000)]
tegra: Enable LCD on Medcom-Wide

The Medcom-Wide has a 15" LCD panel with a resolution of 1366x768
pixels. Add a corresponding panel description to the device tree and
enable LCD support in the configuration.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
11 years agovideo: tegra: Update line length to match resolution
Thierry Reding [Fri, 23 Nov 2012 00:58:49 +0000 (00:58 +0000)]
video: tegra: Update line length to match resolution

Instead of storing the computed line length in a local variable, store
it in the global lcd_line_length variable to make sure the LCD subsystem
can properly draw content for the display resolution.

This probably wasn't noticed yet because the only board where LCD
support is currently enabled is Seaboard, which runs at a 1366x768
resolution. As it happens this is the maximum resolution supported and
also the default that is used to initialize the framebuffer before the
configuration from DT is available.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
11 years agoPrepare v2013.01 v2013.01
Tom Rini [Tue, 15 Jan 2013 21:47:42 +0000 (14:47 -0700)]
Prepare v2013.01

Signed-off-by: Tom Rini <trini@ti.com>
11 years agopxa: Save lr register in relocate_code function
Łukasz Dałek [Sat, 12 Jan 2013 11:39:27 +0000 (11:39 +0000)]
pxa: Save lr register in relocate_code function

When u-boot is compiled for PXA25x processor, pxa/start.S is calling
cpu_init_crit by BL instruction. BL is overwriting lr register so
relocate_code is going into infinite loop. This patch preservs lr
register in r12 before calling cpu_init_crit and after function returns
restores it.

Signed-off-by: Lukasz Dalek <luk0104@gmail.com>
Acked-by: Marek Vasut <marex@denx.de>
11 years agoMerge branch 'master' of git://git.denx.de/u-boot-video
Tom Rini [Mon, 14 Jan 2013 22:41:38 +0000 (15:41 -0700)]
Merge branch 'master' of git://git.denx.de/u-boot-video

11 years agoMerge branch 'agust@denx.de' of git://git.denx.de/u-boot-staging
Tom Rini [Mon, 14 Jan 2013 22:30:31 +0000 (15:30 -0700)]
Merge branch 'agust@denx.de' of git://git.denx.de/u-boot-staging

11 years agotwl4030: fix 'could could' in error messages
Peter Meerwald [Mon, 19 Nov 2012 23:13:04 +0000 (23:13 +0000)]
twl4030: fix 'could could' in error messages

Signed-off-by: Peter Meerwald <p.meerwald@bct-electronic.com>
11 years agowatchdog.h: Move hw_watchdog_init prototype to end, guard
Tom Rini [Mon, 14 Jan 2013 20:10:07 +0000 (13:10 -0700)]
watchdog.h: Move hw_watchdog_init prototype to end, guard

In commit abbab70 we added a prototype for hw_watchdog_init, in a
Freescale i.MX watchdog driver.  We did not however guard it with an
__ASSEMBLY__ check and broke some platforms.  Move this to the end of
the file with other prototypes and guard it.

Signed-off-by: Tom Rini <trini@ti.com>
11 years agoVIDEO: better document the correct use of CONFIG_FB_ADDR
Wolfgang Denk [Thu, 3 Jan 2013 00:43:59 +0000 (00:43 +0000)]
VIDEO: better document the correct use of CONFIG_FB_ADDR

Signed-off-by: Wolfgang Denk <wd@denx.de>
cc: Anatolij Gustschin <agust@denx.de>

11 years agolcd: restore ability to display 8 bpp BMPs on 16 bpp LCDs
Nikita Kiryanov [Thu, 20 Dec 2012 00:52:34 +0000 (00:52 +0000)]
lcd: restore ability to display 8 bpp BMPs on 16 bpp LCDs

Commit fb6a9aab7ae78c (LCD: display 32bpp decompressed bitmap image)
broke the check that allowed U-Boot to display 8 bpp BMPs on a 16
bpp LCD screen, effectively turning this feature off.

Restore this feature by changing the check back to the same meaning
it originally had.
To avoid future confusion, the check has also been rephrased to make
its meaning clear.

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
11 years agoMerge branch 'u-boot-imx/master' into 'u-boot-arm/master'
Albert ARIBAUD [Mon, 14 Jan 2013 16:00:02 +0000 (17:00 +0100)]
Merge branch 'u-boot-imx/master' into 'u-boot-arm/master'

11 years agoMerge branch 'u-boot-samsung/master' into 'u-boot-arm/master'
Albert ARIBAUD [Mon, 14 Jan 2013 14:21:00 +0000 (15:21 +0100)]
Merge branch 'u-boot-samsung/master' into 'u-boot-arm/master'

11 years agovideo: exynos_fb: Make a call to draw_logo only when CONFIG_CMD_BMP is selected
Ajay Kumar [Sun, 13 Jan 2013 23:32:16 +0000 (23:32 +0000)]
video: exynos_fb: Make a call to draw_logo only when CONFIG_CMD_BMP is selected

Previously, the call to draw_logo() was happening irrespective
of whether we have selected logo or LCD console.
With this patch we call draw_logo() only when CONFIG_CMD_BMP is selected.

This would even fix the following compilation warning:
exynos_fb.c: In function 'draw_logo':
exynos_fb.c:74:8: warning: variable 'addr' set but not used
[-Wunused-but-set-variable]
exynos_fb.c:73:9: warning: variable 'y' set but not used
[-Wunused-but-set-variable]
exynos_fb.c:73:6: warning: variable 'x' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
11 years agovideo: exynos_dp: Remove unused variable disp_info
Ajay Kumar [Sun, 13 Jan 2013 23:32:15 +0000 (23:32 +0000)]
video: exynos_dp: Remove unused variable disp_info

Remove unused variable disp_info to fix the following compilation warning:
exynos_dp.c: In function 'exynos_init_dp':
exynos_dp.c:860:23: warning: variable 'disp_info' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
11 years agoI2C: S3C24X0: Resolve build error for VCMA9
Rajeshwari Shinde [Sun, 13 Jan 2013 19:49:36 +0000 (19:49 +0000)]
I2C: S3C24X0: Resolve build error for VCMA9

This patch resolves the following build errors for I2C driver in
VCMA9:

In file included from s3c24x0_i2c.c:40:0:
s3c24x0_i2c.h:38:17: error: field 'id' has incomplete type
s3c24x0_i2c.c:70:39: error: 'CONFIG_MAX_I2C_NUM' undeclared here (not
in a function) s3c24x0_i2c.c:70:31: warning: 'i2c_bus' defined but
not used [-Wunused-variable] s3c24x0_i2c.c:72:12: warning:
'i2c_busses' defined but not used [-Wunused-variable]

Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
11 years agomx51evk: Add DVI output support
Fabio Estevam [Wed, 9 Jan 2013 04:55:09 +0000 (04:55 +0000)]
mx51evk: Add DVI output support

Add DVI output support and make it the default video output.

Currently the CLAA WVGA panel is supported, but this panel has to be purchased
separately, so using the DVI output as the default would allow more people to
try the splash screen feature on a mx51evk.

If someone still wants to use the CLAA WVGA, just set the panel variable as:
set panel claa

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
11 years agomx6qsabresd: Fix booting the kernel from SDHC3
Fabio Estevam [Thu, 10 Jan 2013 09:00:53 +0000 (09:00 +0000)]
mx6qsabresd: Fix booting the kernel from SDHC3

Since commit de7d02aeb (mx6qsabresd: add usdhc2 and usdhc4 support)
SDHC3 device node is no longer 0, which breaks loading a uImage from SDHC3.

Fix it by adapting the default environment to use CONFIG_SYS_MMC_ENV_DEV as the
correct mmc node for loading the kernel from.

While at it, go back to using SDHC3 as the default mmc, since we have Yocto
images that generate an SD card containing U-boot,kernel and rootfs, so it is
more convenient to keep using SDHC3 as it was originally.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
11 years agomx6qsabre{auto, sd}: Add support to dynamically choose between fdt use or not
Otavio Salvador [Thu, 10 Jan 2013 09:45:09 +0000 (09:45 +0000)]
mx6qsabre{auto, sd}: Add support to dynamically choose between fdt use or not

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
11 years agomx6qsabrelite: Add support to dynamically choose between fdt use or not
Otavio Salvador [Thu, 10 Jan 2013 09:45:08 +0000 (09:45 +0000)]
mx6qsabrelite: Add support to dynamically choose between fdt use or not

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
11 years agomx53loco: Add support to dynamically choose between fdt use or not
Otavio Salvador [Thu, 10 Jan 2013 09:45:07 +0000 (09:45 +0000)]
mx53loco: Add support to dynamically choose between fdt use or not

The CONFIG_SYS_CBSIZE has been change to 512 to avoid runtime errors as:

,---[ Runtime error ]
| Hit any key to stop autoboot:  0
| MX53LOCO U-Boot > pri netboot
| netboot=echo Booting from net ...; run netargs; if test ...
| prefetch abort
| pc : [<20747368>]          lr : [<20747365>]
| sp : af566e20  ip : 00000000     fp : 00000000
| r10: 00000002  r9 : af6dfc28     r8 : af566f58
| r7 : af6dfc10  r6 : 00000001     r5 : 00000002  r4 : 74206669
| r3 : 00000000  r2 : 00000060     r1 : 00000020  r0 : 0000018e
| Flags: nZCv  IRQs off  FIQs off  Mode SVC_32
| Resetting CPU ...
|
| resetting ...
`---

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
11 years agomx28evk: Add support to dynamically choose between fdt use or not
Otavio Salvador [Thu, 10 Jan 2013 09:45:06 +0000 (09:45 +0000)]
mx28evk: Add support to dynamically choose between fdt use or not

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
11 years agomx28evk: We shouldn't hardcode a rootfs filesystem type
Otavio Salvador [Thu, 10 Jan 2013 09:45:05 +0000 (09:45 +0000)]
mx28evk: We shouldn't hardcode a rootfs filesystem type

For a generic environment, we shouldn't have a fixed rootfs filesystem
so we drop it from env.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
11 years agomx6qsabrelite: Use tabs to environment setting
Otavio Salvador [Thu, 10 Jan 2013 09:45:04 +0000 (09:45 +0000)]
mx6qsabrelite: Use tabs to environment setting

This rework the environment to use tabs for environment setting as
done in other boards.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
11 years agomx31/mx35/mx51/mx53/mx6: add watchdog
Troy Kisky [Mon, 22 Oct 2012 15:19:01 +0000 (15:19 +0000)]
mx31/mx35/mx51/mx53/mx6: add watchdog

Use a common watchdog driver for all these cpus.

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
Acked-by: Stefano Babic <sbabic@denx.de>
11 years agoarm: at91sam9x5: add dataflash boot support
Bo Shen [Thu, 6 Dec 2012 21:37:04 +0000 (21:37 +0000)]
arm: at91sam9x5: add dataflash boot support

Add dataflash boot support on at91sam9x5ek board

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Andreas Bießmann <andreas.devel@googlemail.com>
11 years agom68k/lib: fix serial driver relocation
angelo [Fri, 23 Nov 2012 12:23:39 +0000 (12:23 +0000)]
m68k/lib: fix serial driver relocation

Fix coldfire serial driver bindings no more relocated to ram after last
changes to drivers/serial/serial.c (regression).
Serial initialization in ram has to be called after that gd->reloc_off is
calculated.

Signed-off-by: Angelo Dureghello <sysamfw@gmail.com>
Cc: Jason Jin <jason.jin@freescale.com>
Acked-by: Jens Scharsig (BuS Elektronik) <esw@bus-elektronik.de>
Tested-by: Jens Scharsig (BuS Elektronik) <esw@bus-elektronik.de>
11 years agoMerge branch 'master' of git://git.denx.de/u-boot-arm
Tom Rini [Fri, 11 Jan 2013 21:38:24 +0000 (14:38 -0700)]
Merge branch 'master' of git://git.denx.de/u-boot-arm

11 years agoMerge branch 'u-boot-ti/master' into 'u-boot-arm/master'
Albert ARIBAUD [Fri, 11 Jan 2013 17:17:33 +0000 (18:17 +0100)]
Merge branch 'u-boot-ti/master' into 'u-boot-arm/master'

11 years agoEXYNOS5: Enable console multiplexing in u-boot
Ajay Kumar [Thu, 10 Jan 2013 21:06:11 +0000 (21:06 +0000)]
EXYNOS5: Enable console multiplexing in u-boot

We enable console multiplexing and use both serial and LCD for stdout/stderr.
Initially, u-boot output console is observed via serial port.
If you also have a DP panel connected onto your SMDK5250 board,
you can switch to LCD console by typing "setenv stdout lcd".
You can always switch back to serial using "setenv stdout serial".
You can switch error console(stderr) as well, using similar commands.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
11 years agoEXYNOS5: Make all display related code dependent on CONFIG_LCD
Ajay Kumar [Thu, 10 Jan 2013 21:06:10 +0000 (21:06 +0000)]
EXYNOS5: Make all display related code dependent on CONFIG_LCD

u-boot compilation fails for smdk5250 when we deselect CONFIG_LCD
from the main config file.

Following error was observed:
drivers/video/libvideo.o: In function `exynos_lcd_init':
/home/ajay/u-boot-samsung/drivers/video/exynos_fb.c:68: undefined reference to `lcd_set_flush_dcache'

This is because exynos video drivers have dependency on CONFIG_LCD.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
11 years agoExynos: clock: add CLK_DIV_FSYS3 at set_mmc_clk
Jaehoon Chung [Thu, 27 Dec 2012 22:30:33 +0000 (22:30 +0000)]
Exynos: clock: add CLK_DIV_FSYS3 at set_mmc_clk

Mobile storage is used the CLK_DIV_FSYS3 value.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
11 years agoExynos: clock: support get_mmc_clk for exynos
Jaehoon Chung [Thu, 27 Dec 2012 22:30:32 +0000 (22:30 +0000)]
Exynos: clock: support get_mmc_clk for exynos

To get exactly clock value for mmc, support the get_mmc_clk() like
set_mmc_clk().

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
11 years agoOMAP3: igep00x0: add CONFIG_SYS_NS16550_BROKEN_TEMT
Javier Martinez Canillas [Mon, 7 Jan 2013 01:35:21 +0000 (01:35 +0000)]
OMAP3: igep00x0: add CONFIG_SYS_NS16550_BROKEN_TEMT

IGEP board PC16550D (ns16550) UART doesn't set the
Transmitter Empty (TEMT) Bit in SPL. This makes
U-Boot to hang while waiting for TEMT. Add the
CONFIG_SYS_NS16550_BROKEN_TEMT config option to
avoid this issue.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
11 years agoserial/ns16550: add an option to avoid hanging on broken platforms
Javier Martinez Canillas [Mon, 7 Jan 2013 01:35:20 +0000 (01:35 +0000)]
serial/ns16550: add an option to avoid hanging on broken platforms

Some platforms (e.g. IGEPv2 board) has a broken ns16550 UART that
does not set the TEMT bit when the transmitter is empty in SPL.
This makes U-Boot to hang while waiting for TEMT to be set.

Add a new option to avoid this:

CONFIG_SYS_NS16550_BROKEN_TEMT

16550 UART set the Transmitter Empty (TEMT) Bit when all output
has finished and the transmitter is totally empty. U-Boot waits
for this bit to be set to initialize the serial console. On some
broken platforms this bit is not set in SPL making U-Boot to
hang while waiting for TEMT. Define this option to avoid it.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>