asgardius/android_kernel_motorola_sm6225
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

ARM: OMAP: fix MMC2 loopback clock handling

Browse source 
Currently MMC2 setup code can only enable loopback clock and
relies on reset value for boards that need to have it disabled.
This causes a problem with certain bootloaders that always enable
that clock, resulting with unwanted bootloader dependencies.

Fix this by making it disable the clock if board data says so.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Grazvydas Ignotas 2012-01-12 16:26:45 +02:00 committed by Tony Lindgren
parent ffa1e4ede4
commit d82e5190da
1 changed files with 5 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
arch/arm/mach-omap2/hsmmc.c
View file

@ -175,11 +175,12 @@ static void hsmmc2_select_input_clk_src(struct omap_mmc_platform_data *mmc)
{
u32 reg;
if (mmc->slots[0].internal_clock) {
reg = omap_ctrl_readl(control_devconf1_offset);
reg = omap_ctrl_readl(control_devconf1_offset);
if (mmc->slots[0].internal_clock)
reg |= OMAP2_MMCSDIO2ADPCLKISEL;
omap_ctrl_writel(reg, control_devconf1_offset);
}
else
reg &= ~OMAP2_MMCSDIO2ADPCLKISEL;
omap_ctrl_writel(reg, control_devconf1_offset);
}
static void hsmmc2_before_set_reg(struct device *dev, int slot,