meson-gx: reserved memory regions
The Odroid C2 has two GiB of memory with two reserved regions.
reg = <0x0 0x0 0x0 0x1000000>;
reg = <0x0 0x10000000 0x0 0x200000>;
Patch
bfcef28ae4cf (arm: add initial support for Amlogic Meson and
ODROID-C2) provided function dram_init_banksize to reserve the
first 16 MiB of RAM for firmware in function dram_init_banksize
in arch/arm/mach-meson/board.c and defined
CONFIG_NR_DRAM_BANKS = 1.
With this patch dram_init_banksize is changed to additionally
reserve the 2MiB region for the ARM Trusted Firmware (BL31).
CONFIG_NR_DRAM_BANKS is set to 2.
Cc: Andreas Färber <afaerber@suse.de>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/arch/arm/mach-meson/board.c b/arch/arm/mach-meson/board.c
index 273dbeb..e89c6aa 100644
--- a/arch/arm/mach-meson/board.c
+++ b/arch/arm/mach-meson/board.c
@@ -37,9 +37,11 @@
int dram_init_banksize(void)
{
/* Reserve first 16 MiB of RAM for firmware */
- gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE + (16 * 1024 * 1024);
- gd->bd->bi_dram[0].size = gd->ram_size - (16 * 1024 * 1024);
-
+ gd->bd->bi_dram[0].start = 0x1000000;
+ gd->bd->bi_dram[0].size = 0xf000000;
+ /* Reserve 2 MiB for ARM Trusted Firmware (BL31) */
+ gd->bd->bi_dram[1].start = 0x10000000;
+ gd->bd->bi_dram[1].size = gd->ram_size - 0x10200000;
return 0;
}