OMAP4: PM: Avoid omap4_pm_init() on OMAP4430 ES1.0
PATCH 1/1 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.
---
Patch applies on top of OMAP4 PM series
arch/arm/mach-omap2/pm44xx.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)
arch/arm/mach-omap2/pm44xx.c +5 -0
@@ -203,6 +203,11 @@ 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" );#ifdef CONFIG_PM
Signature · 1 line
1.6.0.4
PATCH 1/1 OMAP4: PM: Avoid omap4_pm_init() on OMAP4430 ES1.0
Hi Santosh,
Quoted 9 lines · Santosh Shilimkar
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.
Quoted 5 lines
Signed-off-by Santosh Shilimkar <[email protected]>Reported-by Kevin Hilman <[email protected]>Cc Kevin Hilman <[email protected]>---
Patch applies on top of OMAP4 PM series
This looks OK.
Please include in the repost of your OMAP4 PM series.
Kevin