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at91: add kernel support for sama7g5 soc

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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>
This commit is contained in:
Claudiu Beznea
2022-02-04 15:57:50 +02:00
committed by Petr Štetiar
parent 3ed992a996
commit e58cd453d5
152 changed files with 20714 additions and 7 deletions
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45
target/linux/at91/patches-5.10/212-ARM-at91-pm-add-sama7g5-ddr-controller.patch Normal file
View File

@@ -0,0 +1,45 @@
From 3f55310c00b8c478da1458704027036c1a414973 Mon Sep 17 00:00:00 2001
From: Claudiu Beznea <claudiu.beznea@microchip.com>
Date: Thu, 15 Apr 2021 13:50:03 +0300
Subject: [PATCH 212/247] ARM: at91: pm: add sama7g5 ddr controller
Add SAMA7G5 DDR controller to the list of DDR controller compatibles.
At the moment there is no standby support. Adapt the code for this.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20210415105010.569620-18-claudiu.beznea@microchip.com
---
arch/arm/mach-at91/pm.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 96f2be0a53cb..622d68724c3f 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -548,6 +548,7 @@ static const struct of_device_id ramc_ids[] __initconst = {
{ .compatible = "atmel,at91sam9260-sdramc", .data = &ramc_infos[1] },
{ .compatible = "atmel,at91sam9g45-ddramc", .data = &ramc_infos[2] },
{ .compatible = "atmel,sama5d3-ddramc", .data = &ramc_infos[3] },
+ { .compatible = "microchip,sama7g5-uddrc", },
{ /*sentinel*/ }
};
@@ -569,9 +570,11 @@ static __init int at91_dt_ramc(void)
}
ramc = of_id->data;
- if (!standby)
- standby = ramc->idle;
- soc_pm.data.memctrl = ramc->memctrl;
+ if (ramc) {
+ if (!standby)
+ standby = ramc->idle;
+ soc_pm.data.memctrl = ramc->memctrl;
+ }
idx++;
}
--
2.32.0