u-boot-brain/arch/arm
Akshay Bhat 90d7cc42b3 imx: mx6: Fix procedure to switch the parent of LDB_DI_CLK
Due to incorrect placement of the clock gate cell in the ldb_di[x]_clk tree,
the glitchy parent mux of ldb_di[x]_clk can cause a glitch to enter the
ldb_di_ipu_div divider. If the divider gets locked up, no ldb_di[x]_clk is
generated, and the LVDS display will hang when the ipu_di_clk is sourced from
ldb_di_clk.

To fix the problem, both the new and current parent of the ldb_di_clk should
be disabled before the switch. This patch ensures that correct steps are
followed when ldb_di_clk parent is switched in the beginning of boot.

This patch was ported from the 3.10.17 NXP kernel
http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/commit/?h=imx_3.10.17_1.0.1_ga&id=eecbe9a52587cf9eec30132fb9b8a6761f3a1e6d

NXP errata number: ERR009219, EB821

Signed-off-by: Akshay Bhat <akshay.bhat@timesys.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
2016-04-19 16:05:12 +02:00
..
cpu imx: mx6: Fix procedure to switch the parent of LDB_DI_CLK 2016-04-19 16:05:12 +02:00
dts Merge branch 'master' of git://www.denx.de/git/u-boot-microblaze 2016-04-13 12:53:11 -04:00
imx-common arm: mx5: Fix NAND image generation 2016-04-19 15:55:09 +02:00
include imx: mx6: Fix procedure to switch the parent of LDB_DI_CLK 2016-04-19 16:05:12 +02:00
lib arm: spl: Align default board_init_f comment with code 2016-04-01 17:17:57 -04:00
mach-at91 spl: arm: Make sure to include all of the u_boot_list entries 2016-03-16 15:27:55 -04:00
mach-bcm283x rpi: remove redundant board files 2016-04-11 20:48:23 -04:00
mach-davinci arm: Add support for LEGO MINDSTORMS EV3 2016-03-14 19:18:40 -04:00
mach-exynos Use correct spelling of "U-Boot" 2016-02-06 12:00:59 +01:00
mach-highbank ARM: highbank: move SoC sources to mach-highbank 2015-02-21 08:23:51 -05:00
mach-integrator integrator: switch to DM serial port 2015-08-12 20:47:49 -04:00
mach-keystone ARM: keystone2: Add missing privilege ID settings 2016-04-01 17:17:40 -04:00
mach-kirkwood arm: mvebu/kirkwood: Use common timer functions 2016-01-14 14:08:59 +01:00
mach-mvebu arm: mvebu: Add base address for 2nd I2C controller 2016-04-12 11:13:40 +02:00
mach-orion5x Use correct spelling of "U-Boot" 2016-02-06 12:00:59 +01:00
mach-rockchip dm: Use uclass_first_device_err() where it is useful 2016-03-14 15:34:50 -06:00
mach-s5pc1xx arm: s5pc1xx: move SoC to mach-s5pc1xx 2015-11-30 17:17:01 +09:00
mach-snapdragon board: Add Qualcomm Dragonboard 410C support 2016-04-01 17:18:27 -04:00
mach-socfpga arm: socfpga: Nuke useless include 2016-04-10 17:19:49 +02:00
mach-stm32 stm32: stm32f4: move flash driver to mtd driver location 2016-03-26 18:49:28 -04:00
mach-sunxi sunxi: Add INITIAL_USB_SCAN_DELAY Kconfig option 2016-04-12 08:58:03 +02:00
mach-tegra ARM: tegra210: set PLLE_PTS bit when enabling PLLE 2016-03-29 09:57:57 -07:00
mach-uniphier arm: Replace v7_maint_dcache_all(ARMV7_DCACHE_CLEAN_INVAL_ALL) with asm code 2016-04-11 20:48:26 -04:00
mach-versatile arm: Remove versatileab board 2015-09-11 15:01:25 -04:00
mach-zynq gpio: zynq: Move the definitions to driver file 2016-04-13 18:29:06 +02:00
thumb1/include/asm/proc-armv arm: support Thumb-1 with CONFIG_SYS_THUMB_BUILD 2015-11-10 15:03:48 +01:00
config.mk arm: clang: Update support slightly 2016-04-01 17:17:39 -04:00
Kconfig Merge branch 'master' of git://www.denx.de/git/u-boot-microblaze 2016-04-13 12:53:11 -04:00
Kconfig.debug arm: debug: add Kconfig entries for lowlevel debug 2014-10-26 22:23:12 +01:00
Makefile arm: Add support for Qualcomm Snapdragon family 2016-04-01 17:18:26 -04:00