openwrt/target/linux/bcm27xx/patches-5.4/950-0374-ARM-bcm-Backport-BCM2711-support-from-upstream.patch
Álvaro Fernández Rojas 62b7f5931c bcm27xx: import latest patches from the RPi foundation
bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry-picked from commit f07e572f64)
2021-02-19 07:17:21 +01:00

87 lines
2.5 KiB
Diff

From 88dacbcd946d2e0cd06337ab3f393064ab6aba82 Mon Sep 17 00:00:00 2001
From: Stefan Wahren <wahrenst@gmx.net>
Date: Fri, 27 Dec 2019 11:40:56 +0100
Subject: [PATCH] ARM: bcm: Backport BCM2711 support from upstream
Make the BCM2711 a different machine, but keep it in board_bcm2835.
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
---
arch/arm/mach-bcm/Kconfig | 4 ++--
arch/arm/mach-bcm/board_bcm2835.c | 17 +++++++++++++++--
arch/arm64/Kconfig.platforms | 5 +++--
3 files changed, 20 insertions(+), 6 deletions(-)
--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -161,7 +161,7 @@ config ARCH_BCM2835
select GPIOLIB
select ARM_AMBA
select ARM_ERRATA_411920 if ARCH_MULTI_V6
- select ARM_GIC
+ select ARM_GIC if ARCH_MULTI_V7
select ARM_TIMER_SP804
select HAVE_ARM_ARCH_TIMER if ARCH_MULTI_V7
select TIMER_OF
@@ -175,7 +175,7 @@ config ARCH_BCM2835
select ZONE_DMA if ARM_LPAE
select MFD_CORE
help
- This enables support for the Broadcom BCM2835 and BCM2836 SoCs.
+ This enables support for the Broadcom BCM2711 and BCM283x SoCs.
This SoC is used in the Raspberry Pi and Roku 2 devices.
config ARCH_BCM_53573
--- a/arch/arm/mach-bcm/board_bcm2835.c
+++ b/arch/arm/mach-bcm/board_bcm2835.c
@@ -109,17 +109,30 @@ static const char * const bcm2835_compat
#ifdef CONFIG_ARCH_MULTI_V7
"brcm,bcm2836",
"brcm,bcm2837",
- "brcm,bcm2711",
#endif
NULL
};
DT_MACHINE_START(BCM2835, "BCM2835")
+ .map_io = bcm2835_map_io,
+ .init_machine = bcm2835_init,
+ .dt_compat = bcm2835_compat,
+ .smp = smp_ops(bcm2836_smp_ops),
+MACHINE_END
+
+static const char * const bcm2711_compat[] = {
+#ifdef CONFIG_ARCH_MULTI_V7
+ "brcm,bcm2711",
+#endif
+ NULL
+};
+
+DT_MACHINE_START(BCM2711, "BCM2711")
#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
.dma_zone_size = SZ_1G,
#endif
.map_io = bcm2835_map_io,
.init_machine = bcm2835_init,
- .dt_compat = bcm2835_compat,
+ .dt_compat = bcm2711_compat,
.smp = smp_ops(bcm2836_smp_ops),
MACHINE_END
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -37,11 +37,12 @@ config ARCH_BCM2835
select PINCTRL
select PINCTRL_BCM2835
select ARM_AMBA
+ select ARM_GIC
select ARM_TIMER_SP804
select HAVE_ARM_ARCH_TIMER
help
- This enables support for the Broadcom BCM2837 SoC.
- This SoC is used in the Raspberry Pi 3 device.
+ This enables support for the Broadcom BCM2837 and BCM2711 SoC.
+ These SoCs are used in the Raspberry Pi 3 and 4 devices.
config ARCH_BCM_IPROC
bool "Broadcom iProc SoC Family"