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author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2013-10-16 16:24:56 +0200 |
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committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2013-10-16 23:51:36 +0200 |
commit | 2d2c476f3c075bd2fdfce479245b2bf4d0879ec6 (patch) | |
tree | f7aef34e66d8e450095cb90205c1b8be64087cc0 /arch/arm/mach-at91 | |
parent | 1ce3c48e6c76920fa46bfdde84a69e155f880c32 (diff) | |
download | op-kernel-dev-2d2c476f3c075bd2fdfce479245b2bf4d0879ec6.zip op-kernel-dev-2d2c476f3c075bd2fdfce479245b2bf4d0879ec6.tar.gz |
ARM: AT91: pm: Factorize standby function
Detect presence of second bank. So we do not need to have on function per SoC
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'arch/arm/mach-at91')
-rw-r--r-- | arch/arm/mach-at91/at91sam9260.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-at91/at91sam9261.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-at91/at91sam9263.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-at91/at91sam9g45.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-at91/at91sam9rl.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-at91/pm.h | 55 |
6 files changed, 29 insertions, 36 deletions
diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c index ffe9ce70..3b43d56 100644 --- a/arch/arm/mach-at91/at91sam9260.c +++ b/arch/arm/mach-at91/at91sam9260.c @@ -353,7 +353,7 @@ static void __init at91sam9260_initialize(void) /* Register GPIO subsystem */ at91_gpio_init(at91sam9260_gpio, 3); - at91_pm_set_standby(at91sam9_standby); + at91_pm_set_standby(at91sam9_sdram_standby); } /* -------------------------------------------------------------------- diff --git a/arch/arm/mach-at91/at91sam9261.c b/arch/arm/mach-at91/at91sam9261.c index 1edbb6f..a0857c3 100644 --- a/arch/arm/mach-at91/at91sam9261.c +++ b/arch/arm/mach-at91/at91sam9261.c @@ -295,7 +295,7 @@ static void __init at91sam9261_initialize(void) /* Register GPIO subsystem */ at91_gpio_init(at91sam9261_gpio, 3); - at91_pm_set_sandby(at91sam9_standby); + at91_pm_set_standby(at91sam9_sdram_standby); } /* -------------------------------------------------------------------- diff --git a/arch/arm/mach-at91/at91sam9263.c b/arch/arm/mach-at91/at91sam9263.c index 8c81c89..103a95b 100644 --- a/arch/arm/mach-at91/at91sam9263.c +++ b/arch/arm/mach-at91/at91sam9263.c @@ -332,7 +332,7 @@ static void __init at91sam9263_initialize(void) /* Register GPIO subsystem */ at91_gpio_init(at91sam9263_gpio, 5); - at91_pm_set_standby(at91sam9263_standby); + at91_pm_set_standby(at91sam9_sdram_standby); } /* -------------------------------------------------------------------- diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c index 8460f52..f29731e 100644 --- a/arch/arm/mach-at91/at91sam9g45.c +++ b/arch/arm/mach-at91/at91sam9g45.c @@ -381,7 +381,7 @@ static void __init at91sam9g45_initialize(void) /* Register GPIO subsystem */ at91_gpio_init(at91sam9g45_gpio, 5); - at91_pm_set_standby(at91sam9g45_standby); + at91_pm_set_standby(at91_ddr_standby); } /* -------------------------------------------------------------------- diff --git a/arch/arm/mach-at91/at91sam9rl.c b/arch/arm/mach-at91/at91sam9rl.c index c7986e4..9e28f41 100644 --- a/arch/arm/mach-at91/at91sam9rl.c +++ b/arch/arm/mach-at91/at91sam9rl.c @@ -298,7 +298,7 @@ static void __init at91sam9rl_initialize(void) /* Register GPIO subsystem */ at91_gpio_init(at91sam9rl_gpio, 4); - at91_pm_set_standby(at91sam9_standby); + at91_pm_set_standby(at91sam9_sdram_standby); } /* -------------------------------------------------------------------- diff --git a/arch/arm/mach-at91/pm.h b/arch/arm/mach-at91/pm.h index 76dd1a7..3ed190c 100644 --- a/arch/arm/mach-at91/pm.h +++ b/arch/arm/mach-at91/pm.h @@ -49,16 +49,18 @@ static inline void at91rm9200_standby(void) /* We manage both DDRAM/SDRAM controllers, we need more than one value to * remember. */ -static inline void at91sam9g45_standby(void) +static inline void at91_ddr_standby(void) { /* Those two values allow us to delay self-refresh activation * to the maximum. */ - u32 lpr0, lpr1; - u32 saved_lpr0, saved_lpr1; + u32 lpr0, lpr1 = 0; + u32 saved_lpr0, saved_lpr1 = 0; - saved_lpr1 = at91_ramc_read(1, AT91_DDRSDRC_LPR); - lpr1 = saved_lpr1 & ~AT91_DDRSDRC_LPCB; - lpr1 |= AT91_DDRSDRC_LPCB_SELF_REFRESH; + if (at91_ramc_base[1]) { + saved_lpr1 = at91_ramc_read(1, AT91_DDRSDRC_LPR); + lpr1 = saved_lpr1 & ~AT91_DDRSDRC_LPCB; + lpr1 |= AT91_DDRSDRC_LPCB_SELF_REFRESH; + } saved_lpr0 = at91_ramc_read(0, AT91_DDRSDRC_LPR); lpr0 = saved_lpr0 & ~AT91_DDRSDRC_LPCB; @@ -66,25 +68,29 @@ static inline void at91sam9g45_standby(void) /* self-refresh mode now */ at91_ramc_write(0, AT91_DDRSDRC_LPR, lpr0); - at91_ramc_write(1, AT91_DDRSDRC_LPR, lpr1); + if (at91_ramc_base[1]) + at91_ramc_write(1, AT91_DDRSDRC_LPR, lpr1); cpu_do_idle(); at91_ramc_write(0, AT91_DDRSDRC_LPR, saved_lpr0); - at91_ramc_write(1, AT91_DDRSDRC_LPR, saved_lpr1); + if (at91_ramc_base[1]) + at91_ramc_write(1, AT91_DDRSDRC_LPR, saved_lpr1); } /* We manage both DDRAM/SDRAM controllers, we need more than one value to * remember. */ -static inline void at91sam9263_standby(void) +static inline void at91sam9_sdram_standby(void) { - u32 lpr0, lpr1; - u32 saved_lpr0, saved_lpr1; + u32 lpr0, lpr1 = 0; + u32 saved_lpr0, saved_lpr1 = 0; - saved_lpr1 = at91_ramc_read(1, AT91_SDRAMC_LPR); - lpr1 = saved_lpr1 & ~AT91_SDRAMC_LPCB; - lpr1 |= AT91_SDRAMC_LPCB_SELF_REFRESH; + if (at91_ramc_base[1]) { + saved_lpr1 = at91_ramc_read(1, AT91_SDRAMC_LPR); + lpr1 = saved_lpr1 & ~AT91_SDRAMC_LPCB; + lpr1 |= AT91_SDRAMC_LPCB_SELF_REFRESH; + } saved_lpr0 = at91_ramc_read(0, AT91_SDRAMC_LPR); lpr0 = saved_lpr0 & ~AT91_SDRAMC_LPCB; @@ -92,27 +98,14 @@ static inline void at91sam9263_standby(void) /* self-refresh mode now */ at91_ramc_write(0, AT91_SDRAMC_LPR, lpr0); - at91_ramc_write(1, AT91_SDRAMC_LPR, lpr1); + if (at91_ramc_base[1]) + at91_ramc_write(1, AT91_SDRAMC_LPR, lpr1); cpu_do_idle(); at91_ramc_write(0, AT91_SDRAMC_LPR, saved_lpr0); - at91_ramc_write(1, AT91_SDRAMC_LPR, saved_lpr1); -} - -static inline void at91sam9_standby(void) -{ - u32 saved_lpr, lpr; - - saved_lpr = at91_ramc_read(0, AT91_SDRAMC_LPR); - - lpr = saved_lpr & ~AT91_SDRAMC_LPCB; - at91_ramc_write(0, AT91_SDRAMC_LPR, lpr | - AT91_SDRAMC_LPCB_SELF_REFRESH); - - cpu_do_idle(); - - at91_ramc_write(0, AT91_SDRAMC_LPR, saved_lpr); + if (at91_ramc_base[1]) + at91_ramc_write(1, AT91_SDRAMC_LPR, saved_lpr1); } #endif |