diff options
| author | Claudiu Beznea <claudiu.beznea@microchip.com> | 2022-02-04 15:57:50 +0200 |
|---|---|---|
| committer | Petr Štetiar <ynezz@true.cz> | 2022-02-24 19:05:28 +0100 |
| commit | e58cd453d58b20c6a6f34d3591640aa19aa14d25 (patch) | |
| tree | a4fef5f5d79575a7a60b516482ee114c1dbc932e /target/linux/at91/patches-5.10/198-ARM-at91-pm-move-the-setup-of-soc_pm.bu-suspended.patch | |
| parent | 3ed992a99630457f660761ce199e3d2a00f06168 (diff) | |
| download | upstream-e58cd453d58b20c6a6f34d3591640aa19aa14d25.tar.gz upstream-e58cd453d58b20c6a6f34d3591640aa19aa14d25.tar.bz2 upstream-e58cd453d58b20c6a6f34d3591640aa19aa14d25.zip | |
at91: add kernel support for sama7g5 soc
Add kernel support for SAMA7G5 by back-porting mainline kernel patches.
Among SAMA7G5 features could be remembered:
- ARM Cortex-A7
- double data rate multi-port dynamic RAM controller supporting DDR2,
DDR3, DDR3L, LPDDR2, LPDDR3 up to 533MHz
- peripherals for audio, video processing
- 1 gigabit + 1 megabit Ethernet controllers
- 6 CAN controllers
- trust zone support
- DVFS for CPU
- criptography IPs
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Diffstat (limited to 'target/linux/at91/patches-5.10/198-ARM-at91-pm-move-the-setup-of-soc_pm.bu-suspended.patch')
| -rw-r--r-- | target/linux/at91/patches-5.10/198-ARM-at91-pm-move-the-setup-of-soc_pm.bu-suspended.patch | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/target/linux/at91/patches-5.10/198-ARM-at91-pm-move-the-setup-of-soc_pm.bu-suspended.patch b/target/linux/at91/patches-5.10/198-ARM-at91-pm-move-the-setup-of-soc_pm.bu-suspended.patch new file mode 100644 index 0000000000..bbc0d00eed --- /dev/null +++ b/target/linux/at91/patches-5.10/198-ARM-at91-pm-move-the-setup-of-soc_pm.bu-suspended.patch @@ -0,0 +1,60 @@ +From c8f2a8aaae41fa0a40ad88855ae82696098230d7 Mon Sep 17 00:00:00 2001 +From: Claudiu Beznea <claudiu.beznea@microchip.com> +Date: Thu, 15 Apr 2021 13:49:48 +0300 +Subject: [PATCH 198/247] ARM: at91: pm: move the setup of soc_pm.bu->suspended + +Move the setup of soc_pm.bu->suspended in platform_suspend::begin +function so that the PMC code in charge with clocks suspend/resume +to differentiate b/w standard PM mode and backup mode. + +Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> +Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com> +Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> +Link: https://lore.kernel.org/r/20210415105010.569620-3-claudiu.beznea@microchip.com +--- + arch/arm/mach-at91/pm.c | 15 ++++++++++++--- + 1 file changed, 12 insertions(+), 3 deletions(-) + +diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c +index 3fa223c21618..f182d8bf6f82 100644 +--- a/arch/arm/mach-at91/pm.c ++++ b/arch/arm/mach-at91/pm.c +@@ -214,6 +214,8 @@ static int at91_sam9x60_config_pmc_ws(void __iomem *pmc, u32 mode, u32 polarity) + */ + static int at91_pm_begin(suspend_state_t state) + { ++ int ret; ++ + switch (state) { + case PM_SUSPEND_MEM: + soc_pm.data.mode = soc_pm.data.suspend_mode; +@@ -227,7 +229,16 @@ static int at91_pm_begin(suspend_state_t state) + soc_pm.data.mode = -1; + } + +- return at91_pm_config_ws(soc_pm.data.mode, true); ++ ret = at91_pm_config_ws(soc_pm.data.mode, true); ++ if (ret) ++ return ret; ++ ++ if (soc_pm.data.mode == AT91_PM_BACKUP) ++ soc_pm.bu->suspended = 1; ++ else if (soc_pm.bu) ++ soc_pm.bu->suspended = 0; ++ ++ return 0; + } + + /* +@@ -296,8 +307,6 @@ static int at91_suspend_finish(unsigned long val) + static void at91_pm_suspend(suspend_state_t state) + { + if (soc_pm.data.mode == AT91_PM_BACKUP) { +- soc_pm.bu->suspended = 1; +- + cpu_suspend(0, at91_suspend_finish); + + /* The SRAM is lost between suspend cycles */ +-- +2.32.0 + |