e58cd453d5
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>
34 lines
991 B
Diff
34 lines
991 B
Diff
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
|
|
|