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authorSantosh Shilimkar <santosh.shilimkar@ti.com>2011-03-11 16:13:09 +0530
committerKevin Hilman <khilman@ti.com>2011-12-08 11:28:59 -0800
commit361b02f3538bc5603a426ed3bb04129a8d7b9a67 (patch)
tree48f7040c0a0b4d11ac4c9b4ad81daf5879d298e3 /arch/arm/mach-omap2/pm44xx.c
parent12f27826bdaf56b01cbdfc8bdeb577ebc106dee3 (diff)
ARM: OMAP4: PM: Avoid omap4_pm_init() on OMAP4430 ES1.0
On OMAP4430 ES1.0, Power Management features are not supported. Avoid omap4_pm_init() on ES1.0 silicon so that we can continue to use same kernel binary to boot on all OMAP4 silicons. The ES1.0 boot failure with OMAP4 PM series was because of the clockdomain initialisation code. Hardware supervised clockdomain mode isn't functional for all clockdomains on OMAP4430 ES1.0 silicon so avoid the same. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Reported-by: Kevin Hilman <khilman@ti.com> Acked-by: Jean Pihet <j-pihet@ti.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Tested-by: Vishwanath BS <vishwanath.bs@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
Diffstat (limited to 'arch/arm/mach-omap2/pm44xx.c')
-rw-r--r--arch/arm/mach-omap2/pm44xx.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c
index 715035d0512a..35d392abcaa4 100644
--- a/arch/arm/mach-omap2/pm44xx.c
+++ b/arch/arm/mach-omap2/pm44xx.c
@@ -105,6 +105,11 @@ static int __init omap4_pm_init(void)
if (!cpu_is_omap44xx())
return -ENODEV;
+ if (omap_rev() == OMAP4430_REV_ES1_0) {
+ WARN(1, "Power Management not supported on OMAP4430 ES1.0\n");
+ return -ENODEV;
+ }
+
pr_err("Power Management for TI OMAP4.\n");
ret = pwrdm_for_each(pwrdms_setup, NULL);