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| 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-5.10/211-ARM-at91-pm-wait-for-ddr-power-mode-off.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-5.10/211-ARM-at91-pm-wait-for-ddr-power-mode-off.patch')
| -rw-r--r-- | target/linux/at91/patches-5.10/211-ARM-at91-pm-wait-for-ddr-power-mode-off.patch | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/target/linux/at91/patches-5.10/211-ARM-at91-pm-wait-for-ddr-power-mode-off.patch b/target/linux/at91/patches-5.10/211-ARM-at91-pm-wait-for-ddr-power-mode-off.patch new file mode 100644 index 0000000000..f94b479240 --- /dev/null +++ b/target/linux/at91/patches-5.10/211-ARM-at91-pm-wait-for-ddr-power-mode-off.patch @@ -0,0 +1,33 @@ +From 2b522a22243938dd7613e09c954172b1fa6217f5 Mon Sep 17 00:00:00 2001 +From: Claudiu Beznea <claudiu.beznea@microchip.com> +Date: Thu, 15 Apr 2021 13:50:01 +0300 +Subject: [PATCH 211/247] ARM: at91: pm: wait for ddr power mode off + +Wait for DDR power mode off before shutting down the core. + +Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> +Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> +Link: https://lore.kernel.org/r/20210415105010.569620-16-claudiu.beznea@microchip.com +--- + arch/arm/mach-at91/pm_suspend.S | 5 +++++ + 1 file changed, 5 insertions(+) + +diff --git a/arch/arm/mach-at91/pm_suspend.S b/arch/arm/mach-at91/pm_suspend.S +index 9c9e08fd8300..7396e18dd7e5 100644 +--- a/arch/arm/mach-at91/pm_suspend.S ++++ b/arch/arm/mach-at91/pm_suspend.S +@@ -980,6 +980,11 @@ ulp_exit: + mov tmp1, #0x1 + str tmp1, [r0, #0x10] + ++ /* Wait for it. */ ++1: ldr tmp1, [r0, #0x10] ++ tst tmp1, #0x1 ++ beq 1b ++ + /* Shutdown */ + ldr r0, .shdwc + mov tmp1, #0xA5000000 +-- +2.32.0 + |