Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 447b8da5 authored by Jean Pihet's avatar Jean Pihet Committed by Tony Lindgren
Browse files

OMAP3: add comments for erratas i540 and i478 workarounds 



Add comments and IDs for the following erratas:
- i540: MPU cannot exit from Standby,
- i478: Unexpected Cold-Reset is generated when device is coming
   back from OFF mode

Signed-off-by: default avatarJean Pihet <j-pihet@ti.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent fea83f6a

arch/arm/mach-omap2/irq.c

+4 −1
Original line number Diff line number Diff line
@@ -284,7 +284,10 @@ void omap3_intc_suspend(void) 


void omap3_intc_prepare_idle(void)

{

	/* Disable autoidle as it can stall interrupt controller */

	/*

	 * Disable autoidle as it can stall interrupt controller,

	 * cf. errata ID i540 for 3430 (all revisions up to 3.1.x)

	 */

	intc_bank_write_reg(0, &irq_banks[0], INTC_SYSCONFIG);

}

arch/arm/mach-omap2/powerdomains34xx.h

+8 −0
Original line number Diff line number Diff line
@@ -80,6 +80,10 @@ static struct powerdomain mpu_3xxx_pwrdm = { 
 * 3430s upto ES3.0 and 3630ES1.0. Hence this feature

 * needs to be disabled on these chips.

 * Refer: 3430 errata ID i459 and 3630 errata ID i579

 *

 * Note: setting the SAR flag could help for errata ID i478

 *  which applies to 3430 <= ES3.1, but since the SAR feature

 *  is broken, do not use it.

 */

static struct powerdomain core_3xxx_pre_es3_1_pwrdm = {

	.name		  = "core_pwrdm",
@@ -108,6 +112,10 @@ static struct powerdomain core_3xxx_es3_1_pwrdm = { 
					  CHIP_GE_OMAP3630ES1_1),

	.pwrsts		  = PWRSTS_OFF_RET_ON,

	.pwrsts_logic_ret = PWRSTS_OFF_RET,

	/*

	 * Setting the SAR flag for errata ID i478 which applies

	 *  to 3430 <= ES3.1

	 */

	.flags		  = PWRDM_HAS_HDWR_SAR, /* for USBTLL only */

	.banks		  = 2,

	.pwrsts_mem_ret	  = {