From e58cd453d58b20c6a6f34d3591640aa19aa14d25 Mon Sep 17 00:00:00 2001 From: Claudiu Beznea Date: Fri, 4 Feb 2022 15:57:50 +0200 Subject: 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 --- ...12-ARM-at91-pm-add-sama7g5-ddr-controller.patch | 45 ++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 target/linux/at91/patches-5.10/212-ARM-at91-pm-add-sama7g5-ddr-controller.patch (limited to 'target/linux/at91/patches-5.10/212-ARM-at91-pm-add-sama7g5-ddr-controller.patch') diff --git a/target/linux/at91/patches-5.10/212-ARM-at91-pm-add-sama7g5-ddr-controller.patch b/target/linux/at91/patches-5.10/212-ARM-at91-pm-add-sama7g5-ddr-controller.patch new file mode 100644 index 0000000000..e85e55ccc6 --- /dev/null +++ b/target/linux/at91/patches-5.10/212-ARM-at91-pm-add-sama7g5-ddr-controller.patch @@ -0,0 +1,45 @@ +From 3f55310c00b8c478da1458704027036c1a414973 Mon Sep 17 00:00:00 2001 +From: Claudiu Beznea +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 +Signed-off-by: Nicolas Ferre +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 + -- cgit v1.2.3