Commit graph

22646 commits

Author SHA1 Message Date
Otavio Salvador
6584a1b526 ARM: mx6: Change the FDT loading address to avoid overlaping
This patch fixes allow for the DeviceTree and initrd relocation fixing
the boot of FSL 3.10.9-1.0.0-alpha kernel.

This changes following boards:

 - mx6sabreauto
 - mx6sabresd
 - wandboard
 - udoo
 - nitrogen6x
 - cgtqmx6eval

The reasoning, as explained by Hui Liu, is:

,----
| The FDT blob will be placed at DDR physical addr: 0x11000000. When Linux kernel
| Boot up, it will decompress the compressed kernel image and place the decompressed
| kernel image at the low end of the DDR memory and start running from it. If the
| decompressed kernel image is bigger for example than 16M, it may over written the
| fdt blob which u-boot loaded to the DDR memory @0x11000000 with fdt_addr=0x11000000
|
| To expand the fdt_addr from 0x11000000 to 0x18000000, which can avoid the override
| Since we will not likely have one kernel image larger than 128MB.
`----

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Acked-by: Stefano Babic <sbabic@denx.de>
2014-01-03 15:44:05 +01:00
Otavio Salvador
8ae269d41e mx28evk: Extend environment to easy write of NAND system
This adds following new targets:

 - update_nand_kernel
 - update_nand_fdt
 - update_nand_filesystem

and to avoid confusion, the 'update_nand_full' has been renamed to
'update_nand_firmware_full'.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2014-01-03 15:44:05 +01:00
Otavio Salvador
09308e8e49 mx28evk: Add 'nandboot' environment command
This reads the kernel, ftd and boot into ubifs filesystem. While on
that, the SD firmware filename definition has been moved next to the
other SD related commands.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
2014-01-03 15:44:05 +01:00
Otavio Salvador
4d64050b06 mx28evk: Use 512k for fdt partition to align it
Using 512k for fdt partition allow it to be aligned with the other
small partitions and 512k erase block size.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Acked-by: Stefano Babic <sbabic@denx.de>
2014-01-03 15:44:05 +01:00
Otavio Salvador
7773fd1969 imx: Easy enabling of SION per-pin using MUX_MODE_SION helper macro
The macro allows easy setting in per-pin, as for example:

,----
| imx_iomux_v3_setup_pad(MX6_PAD_NANDF_D1__GPIO_2_1 | MUX_MODE_SION);
`----

The IOMUX_CONFIG_SION allows for reading PAD value from PSR register.

The following quote from the datasheet:

,----
| ...
| 28.4.2.2 GPIO Write Mode
| The programming sequence for driving output signals should be as follows:
| 1. Configure IOMUX to select GPIO mode (Via IOMUXC), also enable SION if need
| to read loopback pad value through PSR
| 2. Configure GPIO direction register to output (GPIO_GDIR[GDIR] set to 1b).
| 3. Write value to data register (GPIO_DR).
| ...
`----

This fixes the gpio_get_value to properly work when a GPIO is set for
output and has no conflicts.

Thanks for Benoît Thébaudeau <benoit.thebaudeau@advansee.com>, Fabio
Estevam <fabio.estevam@freescale.com> and Eric Bénard
<eric@eukrea.com> for helping to properly trace this down.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Acked-by: Stefano Babic <sbabic@denx.de>
2014-01-03 15:44:05 +01:00
Fabio Estevam
0222982780 mx6: soc: Disable VDDPU regulator
As U-boot does not use GPU/VPU peripherals, shutdown the VDDPU regulator
in order to save power.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Jason Liu <r64343@freescale.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
2014-01-02 17:16:51 +01:00
Fabio Estevam
39f0ac9347 mx6: soc: Add the required LDO ramp up delay
When changing LDO voltages we need to wait for the required amount of time
for the voltage to settle.

Also, as the timer is still not available when arch_cpu_init() is called, we
need to call it later at board_postclk_init() phase.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
2014-01-02 17:16:51 +01:00
Fabio Estevam
3d622b78bd mx6: soc: Introduce set_ldo_voltage()
Introduce set_ldo_voltage() so that all three LDO regulators can be configured.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
2014-01-02 17:16:51 +01:00
Fabio Estevam
7e5e8c94a9 mx6: soc: Set the VDDSOC at 1.175 V
mx6 datasheet specifies that the minimum VDDSOC at 792 MHz is 1.15 V.
Add a 25 mV margin and set it to 1.175V.

This also matches the VDDSOC voltages for 792MHz operation that the kernel configures:
http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/tree/arch/arm/mach-mx6/cpu_op-mx6.c?h=imx_3.0.35_4.1.0

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
2014-01-02 17:16:50 +01:00
Fabio Estevam
e113fd1972 mx6: soc: Clear the LDO ramp values up prior to setting the LDO voltages
Since ROM may modify the LDO ramp up time according to fuse setting,
it is safer to reset the ramp up field to its default value of 00:

00: 64 cycles of 24MHz clock;
01: 128 cycles of 24MHz clock;
02: 256 cycles of 24MHz clock;
03: 512 cycles of 24MHz clock;

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Jason Liu <r64343@freescale.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
2014-01-02 17:16:50 +01:00
Fabio Estevam
fc740648bd mx6: soc: Staticize set_vddsoc()
set_vddsoc() is not used anywhere else, so make it static.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
2014-01-02 17:16:50 +01:00
Fabio Estevam
5dc64ab730 mx6sabre_common.h: Add CONFIG_CMD_FUSE support
Add CONFIG_CMD_FUSE option, so that the fuse API can be used.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
2014-01-02 17:16:50 +01:00
Fabio Estevam
6f3bef9e30 doc: README.fuse: Add an example on how to use the fuse API on mx6q
When using the fuse API in U-boot user must calculate the 'bank' and 'word'
values.

Provide a real example on how to calculate such values for the mx6q.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
2014-01-02 17:16:50 +01:00
Piotr Wilczek
a5e15bbb42 board:trats2: fix default partitions and mmc env
This patch add uuid disk to defualt partions necessary to
restore gpt partitions and fixes mmcdev environmental variable.

Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-12-31 16:41:10 +09:00
Piotr Wilczek
ef23b99607 board:trats1:trats2: fix adapter number
This fix is necessary after increased by one the number
of adapters in s3c24x0 driver.

Tested on Trats and Trats2.

Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-12-31 16:41:10 +09:00
Rajeshwari Birje
0fcac1abde SPL: EXYNOS: Prepare for variable size SPL support
When variable size SPL is used, the BL1 expects the SPL to be
encapsulated differently: instead of putting the checksum at a fixed
offset in the SPL blob, prepend the blob with a header including the
size and the checksum.

The enhancements include
	- adding a command line option, '--vs' to indicate the need for the
	variable size encapsulation
	- padding the fixed size encapsulated blob with 0xff instead of random
	memory contents
	- do not silently truncate the input file, report error instead
	- no need to explicitly closing files/freeing memory, this all happens
	on exit; removing cleanups it makes code clearer
	- profuse commenting
	- modify Makefile to allow enabling the new feature per board

Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Signed-off-by: Rajeshwari S Shinde <rajeshwari.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-12-30 16:50:35 +09:00
Rajeshwari Birje
76dd9b6a63 Config: Add initial config for SMDK5420
Adding initial config for SMDK5420 to build and boot U-Boot
over Exynos based SMDK5420.

Signed-off-by: Rajeshwari S Shinde <rajeshwari.s@samsung.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-12-30 16:50:35 +09:00
Rajeshwari Birje
e2be3369c8 DTS: Add dts support for SMDK5420
This patch adds dts support for SMDK5420.
exynos5.dtsi created is a common file which has the nodes common
to both 5420 and 5250.

Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Signed-off-by: Rajeshwari S Shinde <rajeshwari.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-12-30 16:50:35 +09:00
Rajeshwari Birje
e106bd9b9d Exynos5420: Add base patch for SMDK5420
Adding the base patch for Exynos based SMDK5420.
This shall enable compilation and basic boot support for
SMDK5420.

Signed-off-by: Rajeshwari S Shinde <rajeshwari.s@samsung.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-12-30 16:50:34 +09:00
Rajeshwari Birje
5af4a4f74a Exynos5420: Add support for 5420 in pinmux and gpio
Adds code in pinmux and gpio framework to support Exynos5420.

Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Signed-off-by: Rajeshwari S Shinde <rajeshwari.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-12-30 16:50:34 +09:00
Rajeshwari Birje
f3d7c2fe9d Exynos5420: Add DDR3 initialization for 5420
This patch intends to add DDR3 initialization code for Exynos5420.

Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Signed-off-by: Rajeshwari S Shinde <rajeshwari.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-12-30 16:50:34 +09:00
Rajeshwari Birje
060c227a28 Exynos5420: Add clock initialization for 5420
This patch adds code for clock initialization and clock settings
of various IP's and controllers, required for Exynos5420

Signed-off-by: Rajeshwari S Shinde <rajeshwari.s@samsung.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-12-30 16:50:34 +09:00
Rajeshwari Birje
e89278c933 EXYNOS5420: Add dmc and phy_control register structure
Add dmc and phy_control register structure for 5420.

Signed-off-by: Rajeshwari S Shinde <rajeshwari.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-12-30 16:50:34 +09:00
Rajeshwari Birje
3e97635764 EXYNOS5420: Add power register structure.
Add structure for power register for Exynos5420

Signed-off-by: Rajeshwari S Shinde <rajeshwari.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-12-30 16:50:34 +09:00
Rajeshwari Birje
e69847ab8d Exynos5420: Add base addresses for 5420
Adds base addresses of various IPs and controllers required for
Exynos5420.

Signed-off-by: Rajeshwari S Shinde <rajeshwari.s@samsung.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-12-30 16:50:34 +09:00
Rajeshwari Birje
71ebb33559 EXYNOS5: Create a common board file
Create a common board.c file for all functions which are common across
all EXYNOS5 platforms.

exynos_init function is provided for platform specific code.

Signed-off-by: Rajeshwari S Shinde <rajeshwari.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-12-30 16:50:34 +09:00
Stefano Babic
f5514e47c4 MX6: fix sata compilation for i.MX6
Commit 164d984661 breaks
board with SATA support, because sata is not compiled.

Signed-off-by: Stefano Babic <sbabic@denx.de>
2013-12-19 11:04:33 +01:00
Lokesh Vutla
2931fa4db3 ARM: AM43xx: Add Maintainer
Adding Maintainer for AM43xx.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2013-12-18 21:14:45 -05:00
Lokesh Vutla
b5e01eecc8 ARM: AM43xx: GP_EVM: Add support for DDR3
GP EVM has 1GB DDR3 attached(Part no: MT41K512M8RH).
Adding details for the same.
Below is the brief description of DDR3 init sequence(SW leveling):
-> Enable VTT regulator
-> Configure VTP
-> Configure DDR IO settings
-> Disable initialization and refreshes until EMIF registers are programmed.
-> Program Timing registers
-> Program leveling registers
-> Program PHY control and Temp alert and ZQ config registers.
-> Enable initialization and refreshes and configure SDRAM CONFIG register

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2013-12-18 21:14:45 -05:00
Lokesh Vutla
d3daba10f1 ARM: AM43xx: EPOS_EVM: Add support for LPDDR2
AM4372 EPOS EVM has 1GB LPDDR2(Part no: MT42L256M32D2LG-25 WT:A)
Adding LPDDR2 init sequence and register details for the same.
Below is the brief description of LPDDR2 init sequence:
-> Configure VTP
-> Configure DDR IO settings
-> Disable initialization and refreshes until EMIF registers are programmed.
-> Program Timing registers
-> Program PHY control and Temp alert and ZQ config registers.
-> Enable initialization and refreshes and configure SDRAM CONFIG register
-> Wait till initialization is complete and the configure MR registers.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2013-12-18 21:14:44 -05:00
Lokesh Vutla
965de8b91b ARM: AM33xx+: Update ioregs to pass different values
Currently same value is programmed for all ioregs. This is not
the case for all SoC's like AM4372. So adding a structure for ioregs
and updating in all board files. And also return from config_cmd_ctrl()
and config_ddr_data() functions if data is not passed.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
[trini: Fixup dxr2, cm_t335, adapt pcm051 rev3]
Signed-off-by: Tom Rini <trini@ti.com>
2013-12-18 21:14:18 -05:00
Lokesh Vutla
cf04d0326b ARM: AM43xx: clocks: Update DPLL details
Updating the Multiplier and Dividers value for all DPLLs.
Safest OPP is read from DEV ATTRIBUTE register. Accoring to the value
returned the MPU DPLL is locked.
At different OPPs follwoing are the MPU locked frequencies.
OPP50	300MHz
OPP100	600MHz
OPP120	720MHz
OPPTB	800MHz
OPPNT	1000MHz
According to the latest DM following is the OPP table dependencies:
	VDD_CORE 	VDD_MPU
	OPP50		OPP50
	OPP50 		OPP100
	OPP100		OPP50
	OPP100		OPP100
	OPP100		OPP120
So at different OPPs of MPU it is safest to lock CORE at OPP_NOM.
Following are the DPLL locking frequencies at OPP NOM:
Core locks at 1000MHz
Per locks at 960MHz
LPDDR2 locks at 266MHz
DDR3 locks at 400MHz

Touching AM33xx files also to get DPLL values specific to board but no
functionality difference.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2013-12-18 21:14:01 -05:00
Lokesh Vutla
4892495e36 ARM: AM43xx: mux: Update mux data
Updating the mux data for UART, adding data for i2c0 and mmc.
And also updating pad_signals structure.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2013-12-18 21:14:01 -05:00
Lokesh Vutla
1fb68b842e ARM: AM43xx: Update Current Booting devices list
Current Booting devices list is different from that of AM33xx.
Updating the same.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2013-12-18 21:14:01 -05:00
Lokesh Vutla
0d54cb924e ARM: AM43xx: Select clk source for Timer2
Selecting the Master osc clk as Timer2 clock source.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2013-12-18 21:14:01 -05:00
Sekhar Nori
f4af163e6c ARM: AM43XX: Add CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG support
CONFIG_ENV_VARS_UBOOT_CONFIG, CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG and
CONFIG_BOARD_LATE_INIT is already set. Adding support to detect the
board. These variables are used by findfdt.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2013-12-18 21:14:00 -05:00
Sekhar Nori
9f1a8cd33f ARM: AM43XX: board: add support for reading onboard EEPROM
Add support for reading onboard EEPROM to enable
board detection.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2013-12-18 21:14:00 -05:00
Lokesh Vutla
1564dba7d9 ARM: AM43xx: Add extra ENV settings
Add Extra env settings.
This is derived from am335x Extra ENV settings.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2013-12-18 21:14:00 -05:00
Lokesh Vutla
573b020ecb ARM: AM43xx: Add L2 Support
AM4372 uses PL310 L2 Cache. Enable the configs for the same.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2013-12-18 21:14:00 -05:00
Lokesh Vutla
369cbe1e1e ARM: AM43xx: Adapt to ti_armv7_common.h config file
Use ti_armv7_common.h config file to inclde the common
configs.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2013-12-18 21:14:00 -05:00
Lokesh Vutla
7ca1b2a210 ARM: AM43xx: Update the base addresses of modules
PRCM, timer base addresses and offsets are different from
AM33xx. Updating the same.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2013-12-18 21:13:59 -05:00
Stefan Roese
ce23b18bbb arm: omap3: Fix beagleboard SPL boot hangup (GPIO clocks not enabled)
Patch f33b9bd3
[arm: omap3: Enable clocks for peripherals only if they are used]
breaks SPL booting on Beagleboard. Since some gpio input's are
read to detect the board revision. But with this patch above, the
clocks to the GPIO subsystems are not enabled per default any more.
The GPIO banks need to be configured specifically now.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Tom Rini <trini@ti.com>
Cc: Michael Trimarchi <michael@amarulasolutions.com>
2013-12-18 21:13:59 -05:00
Albert ARIBAUD
d627eefcd5 Merge remote-tracking branch 'u-boot-pxa/master' into 'u-boot-arm/master' 2013-12-18 22:19:02 +01:00
Albert ARIBAUD
fe7f0810dd Merge branch 'u-boot-tegra/master' into 'u-boot-arm/master' 2013-12-18 21:45:34 +01:00
Marek Vasut
f90aea2a65 ARM: pxa: Fix CONFIG_SYS_HZ on PXA
The PXA incorrectly uses CONFIG_SYS_HZ, which should be 1000 across
U-Boot. Fix this.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@ti.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
2013-12-18 20:40:05 +01:00
Alban Bedel
766afc3dff arm: tegra: Fix the CPU complex reset masks
The CPU complex reset masks are not matching with the datasheet for
the CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET/CLR_0 registers. For both T20
and T30 the register consist of groups of 4 bits, with one bit for
each CPU core. On T20 the 2 high bits of each group are always stubbed
as there is only 2 cores.

Signed-off-by: Alban Bedel <alban.bedel@avionic-design.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swrren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2013-12-18 10:19:49 -07:00
Alban Bedel
8f38038193 ARM: tegra: Add the Tamonten™ NG Evaluation Carrier board
Add support for the new Tamonten™ NG platform from Avionic Design.
Currently only I2C, MMC, USB and ethernet have been tested.

Signed-off-by: Alban Bedel <alban.bedel@avionic-design.de>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2013-12-18 10:19:49 -07:00
Alban Bedel
ac2ff538cd i2c: tegra: Add the fifth bus on SoC with more than 4 buses
Create the i2c adapter object for the fifth bus on SoC with more than
4 buses. This allow using all the bus available on T30.

Signed-off-by: Alban Bedel <alban.bedel@avionic-design.de>
Acked-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2013-12-18 10:19:49 -07:00
Alban Bedel
3346cbb8e8 ARM: tegra: support SKU b1 of Tegra30
Add the Tegra30 SKU b1 and treat it like other Tegra30 chips.

Signed-off-by: Alban Bedel <alban.bedel@avionic-design.de>
Reviewed-by: Julian Scheel <julian.scheel@avionic-design.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2013-12-18 10:19:48 -07:00
Jim Lin
81d21e98b0 ARM: config: USB: Tegra30/114: Fix EHCI timeout issue on "bootp"
Fix the timeout issue after running "bootp" command in u-boot
console. For example you see "EHCI timed out on TD- token=0x...".
TXFIFOTHRES bits of TXFILLTUNING register should be set to 0x10
after a controller reset and before RUN bit is set
(per technical reference manual).

Signed-off-by: Jim Lin <jilin@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2013-12-18 10:19:48 -07:00