From: Patrick Rudolph <patrick.rudolph@9elements.com>
Date: Wed, 23 Oct 2024 13:20:09 +0000 (+0200)
Subject: arm: mach-bcm283x: Map the ARM local MMIO as well
X-Git-Url: http://git.dujemihanovic.xyz/projects?a=commitdiff_plain;h=019d21a0df051b9881d4d060316d41fbc7292341;p=u-boot.git

arm: mach-bcm283x: Map the ARM local MMIO as well

Cover the "ARM local MMIO" range as well in the default MMU mapping in
order to allow future code to access the GIC-400 without crashing. For
now the GIC is not touched in u-boot, thus this change is a noop.

See [1](BCM2711 ARM Peripherals) for reference.

TEST: Enabled CONFIG_GICV2 and accessed the GIC in C code without crash.

1: https://datasheets.raspberrypi.com/bcm2711/bcm2711-peripherals.pdf

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Matthias Brugger <mbrugger@suse.com>
Cc: Matthias Brugger <mbrugger@suse.com>
Cc: Peter Robinson <pbrobinson@gmail.com>
---

diff --git a/arch/arm/mach-bcm283x/init.c b/arch/arm/mach-bcm283x/init.c
index 1b459707bc..7a1de22e0a 100644
--- a/arch/arm/mach-bcm283x/init.c
+++ b/arch/arm/mach-bcm283x/init.c
@@ -50,7 +50,7 @@ static struct mm_region bcm2711_mem_map[MEM_MAP_MAX_ENTRIES] = {
 	}, {
 		.virt = 0xfc000000UL,
 		.phys = 0xfc000000UL,
-		.size = 0x03800000UL,
+		.size = 0x04000000UL,
 		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
 			 PTE_BLOCK_NON_SHARE |
 			 PTE_BLOCK_PXN | PTE_BLOCK_UXN