| Message ID | 1315144466-9395-10-git-send-email-santosh.shilimkar@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c index 35ba028..0154363 100644 --- a/arch/arm/mach-omap2/pm44xx.c +++ b/arch/arm/mach-omap2/pm44xx.c @@ -122,6 +122,11 @@ 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);
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> Cc: Kevin Hilman <khilman@ti.com> --- arch/arm/mach-omap2/pm44xx.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)