diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index 374b9d155558..ae7b148febd9 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -736,13 +736,30 @@ static void __init at91_pm_modes_init(void) struct pmc_info { unsigned long uhp_udp_mask; + unsigned long mckr; }; static const struct pmc_info pmc_infos[] __initconst = { - { .uhp_udp_mask = AT91RM9200_PMC_UHP | AT91RM9200_PMC_UDP }, - { .uhp_udp_mask = AT91SAM926x_PMC_UHP | AT91SAM926x_PMC_UDP }, - { .uhp_udp_mask = AT91SAM926x_PMC_UHP }, - { .uhp_udp_mask = 0 }, + { + .uhp_udp_mask = AT91RM9200_PMC_UHP | AT91RM9200_PMC_UDP, + .mckr = 0x30, + }, + + { + .uhp_udp_mask = AT91SAM926x_PMC_UHP | AT91SAM926x_PMC_UDP, + .mckr = 0x30, + }, + { + .uhp_udp_mask = AT91SAM926x_PMC_UHP, + .mckr = 0x30, + }, + { .uhp_udp_mask = 0, + .mckr = 0x30, + }, + { + .uhp_udp_mask = AT91SAM926x_PMC_UHP | AT91SAM926x_PMC_UDP, + .mckr = 0x28, + }, }; static const struct of_device_id atmel_pmc_ids[] __initconst = { @@ -757,7 +774,7 @@ static const struct of_device_id atmel_pmc_ids[] __initconst = { { .compatible = "atmel,sama5d3-pmc", .data = &pmc_infos[1] }, { .compatible = "atmel,sama5d4-pmc", .data = &pmc_infos[1] }, { .compatible = "atmel,sama5d2-pmc", .data = &pmc_infos[1] }, - { .compatible = "microchip,sam9x60-pmc", .data = &pmc_infos[1] }, + { .compatible = "microchip,sam9x60-pmc", .data = &pmc_infos[4] }, { /* sentinel */ }, }; @@ -779,6 +796,7 @@ static void __init at91_pm_init(void (*pm_idle)(void)) pmc = of_id->data; soc_pm.data.uhp_udp_mask = pmc->uhp_udp_mask; + soc_pm.data.pmc_mckr_offset = pmc->mckr; if (pm_idle) arm_pm_idle = pm_idle; diff --git a/arch/arm/mach-at91/pm.h b/arch/arm/mach-at91/pm.h index 9fa4f483f2b5..6f7f4236865a 100644 --- a/arch/arm/mach-at91/pm.h +++ b/arch/arm/mach-at91/pm.h @@ -33,6 +33,7 @@ struct at91_pm_data { void __iomem *sfrbu; unsigned int standby_mode; unsigned int suspend_mode; + unsigned int pmc_mckr_offset; }; #endif diff --git a/arch/arm/mach-at91/pm_data-offsets.c b/arch/arm/mach-at91/pm_data-offsets.c index f2d893c03cd9..dfcbe626865c 100644 --- a/arch/arm/mach-at91/pm_data-offsets.c +++ b/arch/arm/mach-at91/pm_data-offsets.c @@ -12,6 +12,8 @@ int main(void) DEFINE(PM_DATA_MODE, offsetof(struct at91_pm_data, mode)); DEFINE(PM_DATA_SHDWC, offsetof(struct at91_pm_data, shdwc)); DEFINE(PM_DATA_SFRBU, offsetof(struct at91_pm_data, sfrbu)); + DEFINE(PM_DATA_PMC_MCKR_OFFSET, offsetof(struct at91_pm_data, + pmc_mckr_offset)); return 0; } diff --git a/arch/arm/mach-at91/pm_suspend.S b/arch/arm/mach-at91/pm_suspend.S index ed57c879d4e1..52b262d56cfd 100644 --- a/arch/arm/mach-at91/pm_suspend.S +++ b/arch/arm/mach-at91/pm_suspend.S @@ -93,6 +93,8 @@ ENTRY(at91_pm_suspend_in_sram) str tmp1, .memtype ldr tmp1, [r0, #PM_DATA_MODE] str tmp1, .pm_mode + ldr tmp1, [r0, #PM_DATA_PMC_MCKR_OFFSET] + str tmp1, .mckr_offset /* Both ldrne below are here to preload their address in the TLB */ ldr tmp1, [r0, #PM_DATA_SHDWC] str tmp1, .shdwc @@ -138,9 +140,10 @@ ENDPROC(at91_pm_suspend_in_sram) ENTRY(at91_backup_mode) /* Switch the master clock source to slow clock. */ ldr pmc, .pmc_base - ldr tmp1, [pmc, #AT91_PMC_MCKR] + ldr tmp2, .mckr_offset + ldr tmp1, [pmc, tmp2] bic tmp1, tmp1, #AT91_PMC_CSS - str tmp1, [pmc, #AT91_PMC_MCKR] + str tmp1, [pmc, tmp2] wait_mckrdy @@ -218,6 +221,7 @@ ENDPROC(at91_backup_mode) */ .macro at91_pm_ulp1_mode ldr pmc, .pmc_base + ldr tmp2, .mckr_offset /* Save RC oscillator state and check if it is enabled. */ ldr tmp1, [pmc, #AT91_PMC_SR] @@ -254,10 +258,10 @@ ENDPROC(at91_backup_mode) str tmp1, [pmc, #AT91_CKGR_MOR] /* Switch the master clock source to main clock */ - ldr tmp1, [pmc, #AT91_PMC_MCKR] + ldr tmp1, [pmc, tmp2] bic tmp1, tmp1, #AT91_PMC_CSS orr tmp1, tmp1, #AT91_PMC_CSS_MAIN - str tmp1, [pmc, #AT91_PMC_MCKR] + str tmp1, [pmc, tmp2] wait_mckrdy @@ -280,9 +284,9 @@ ENDPROC(at91_backup_mode) wait_moscrdy /* Switch the master clock source to slow clock */ - ldr tmp1, [pmc, #AT91_PMC_MCKR] + ldr tmp1, [pmc, tmp2] bic tmp1, tmp1, #AT91_PMC_CSS - str tmp1, [pmc, #AT91_PMC_MCKR] + str tmp1, [pmc, tmp2] wait_mckrdy @@ -296,10 +300,10 @@ ENDPROC(at91_backup_mode) wait_moscsels /* Switch the master clock source to main clock */ - ldr tmp1, [pmc, #AT91_PMC_MCKR] + ldr tmp1, [pmc, tmp2] bic tmp1, tmp1, #AT91_PMC_CSS orr tmp1, tmp1, #AT91_PMC_CSS_MAIN - str tmp1, [pmc, #AT91_PMC_MCKR] + str tmp1, [pmc, tmp2] wait_mckrdy @@ -325,16 +329,17 @@ ENDPROC(at91_backup_mode) ENTRY(at91_ulp_mode) ldr pmc, .pmc_base + ldr tmp2, .mckr_offset /* Save Master clock setting */ - ldr tmp1, [pmc, #AT91_PMC_MCKR] + ldr tmp1, [pmc, tmp2] str tmp1, .saved_mckr /* * Set the Master clock source to slow clock */ bic tmp1, tmp1, #AT91_PMC_CSS - str tmp1, [pmc, #AT91_PMC_MCKR] + str tmp1, [pmc, tmp2] wait_mckrdy @@ -355,8 +360,9 @@ ulp_exit: /* * Restore master clock setting */ - ldr tmp1, .saved_mckr - str tmp1, [pmc, #AT91_PMC_MCKR] + ldr tmp1, .mckr_offset + ldr tmp2, .saved_mckr + str tmp2, [pmc, tmp1] wait_mckrdy @@ -502,6 +508,8 @@ ENDPROC(at91_sramc_self_refresh) .word 0 .pm_mode: .word 0 +.mckr_offset: + .word 0 .saved_mckr: .word 0 .saved_sam9_lpr: