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Fixes for omap against v4.3-rc5: 

- Regulator fix for beagle-x15 to fix HDMI without a SD card being
   inserted
 
 - GPMC fix for showing proper timings and to allow enabling debug
   options that somehow was unselectable earlier
 
 - Add minimal documentation for new MMC1 dependency on
   REGULATOR_PBIAS as it may not be obvious for people with
   targeted .config files
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Merge tag 'omap-for-v4.3/fixes-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Merge "Fixes for omap against v4.3-rc5" from Tony Lindgren:

- Regulator fix for beagle-x15 to fix HDMI without a SD card being
  inserted

- GPMC fix for showing proper timings and to allow enabling debug
  options that somehow was unselectable earlier

- Add minimal documentation for new MMC1 dependency on
  REGULATOR_PBIAS as it may not be obvious for people with
  targeted .config files

* tag 'omap-for-v4.3/fixes-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  Documentation: ARM: List new omap MMC requirements
  memory: omap-gpmc: dump "before" state before first modification
  memory: omap-gpmc: Fix unselectable debug option for GPMC
  ARM: dts: am57xx-beagle-x15: set VDD_SD to always-on
This commit is contained in:
Arnd Bergmann 2015-10-15 17:13:26 +02:00
parent 2e4e5da55a d8e1f5ed11
commit a787f40a9a
4 changed files with 19 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
Documentation/arm/OMAP/README Normal file
View File

@ -0,0 +1,7 @@
This file contains documentation for running mainline
kernel on omaps.
KERNEL NEW DEPENDENCIES
v4.3+ Update is needed for custom .config files to make sure
CONFIG_REGULATOR_PBIAS is enabled for MMC1 to work
properly.

3
arch/arm/boot/dts/am57xx-beagle-x15.dts
View File

@ -402,11 +402,12 @@ smps8_reg: smps8 {
/* SMPS9 unused */
ldo1_reg: ldo1 {
/* VDD_SD */
/* VDD_SD / VDDSHV8 */
regulator-name = "ldo1";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
ldo2_reg: ldo2 {

12
drivers/memory/Kconfig
View File

@ -58,12 +58,18 @@ config OMAP_GPMC
memory drives like NOR, NAND, OneNAND, SRAM.
config OMAP_GPMC_DEBUG
bool
bool "Enable GPMC debug output and skip reset of GPMC during init"
depends on OMAP_GPMC
help
Enables verbose debugging mostly to decode the bootloader provided
timings. Enable this during development to configure devices
connected to the GPMC bus.
timings. To preserve the bootloader provided timings, the reset
of GPMC is skipped during init. Enable this during development to
configure devices connected to the GPMC bus.
NOTE: In addition to matching the register setup with the bootloader
you also need to match the GPMC FCLK frequency used by the
bootloader or else the GPMC timings won't be identical with the
bootloader timings.
config MVEBU_DEVBUS
bool "Marvell EBU Device Bus Controller"

2
drivers/memory/omap-gpmc.c
View File

@ -696,7 +696,6 @@ int gpmc_cs_set_timings(int cs, const struct gpmc_timings *t,
int div;
u32 l;
gpmc_cs_show_timings(cs, "before gpmc_cs_set_timings");
div = gpmc_calc_divider(t->sync_clk);
if (div < 0)
return div;
@ -1988,6 +1987,7 @@ static int gpmc_probe_generic_child(struct platform_device *pdev,
if (ret < 0)
goto err;
gpmc_cs_show_timings(cs, "before gpmc_cs_program_settings");
ret = gpmc_cs_program_settings(cs, &gpmc_s);
if (ret < 0)
goto err;