diff options
| author | Matthias Brugger | 2019-09-09 18:31:56 +0200 |
|---|---|---|
| committer | Matthias Brugger | 2019-10-01 11:14:47 +0200 |
| commit | 9de5b89e4c898ec770878eb4848588c635a37bac (patch) | |
| tree | a8e271b96345f36548925b5bda057b0393e897ae | |
| parent | 023ff4b88dcec5faa3f9b841bae4d3d232b58ce2 (diff) | |
rpi4: enable dram bank initialization
When booting through the efi stub, the memory map get's created by
reading the dram bank information. Depending on the version of the RPi4
this information changes. Read the device tree to initialize the dram
bank data structure. This way the kernel is able to access the whole
range of available memory.
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
| -rw-r--r-- | board/raspberrypi/rpi/rpi.c | 10 | ||||
| -rw-r--r-- | configs/rpi_4_defconfig | 2 |
2 files changed, 11 insertions, 1 deletions
diff --git a/board/raspberrypi/rpi/rpi.c b/board/raspberrypi/rpi/rpi.c index fa57d50c95e..9e0abdda319 100644 --- a/board/raspberrypi/rpi/rpi.c +++ b/board/raspberrypi/rpi/rpi.c @@ -312,6 +312,16 @@ int dram_init(void) return 0; } +#ifdef CONFIG_OF_BOARD +#ifdef CONFIG_BCM2711 +int dram_init_banksize(void) +{ + return fdtdec_decode_ram_size(gd->fdt_blob, NULL, 0, NULL, + (phys_size_t *)&gd->ram_size, gd->bd); +} +#endif +#endif + static void set_fdtfile(void) { const char *fdtfile; diff --git a/configs/rpi_4_defconfig b/configs/rpi_4_defconfig index 2d63197d75d..2954e17ac3b 100644 --- a/configs/rpi_4_defconfig +++ b/configs/rpi_4_defconfig @@ -3,7 +3,7 @@ CONFIG_ARCH_BCM283X=y CONFIG_SYS_TEXT_BASE=0x00080000 CONFIG_TARGET_RPI_4=y CONFIG_SYS_MALLOC_F_LEN=0x2000 -CONFIG_NR_DRAM_BANKS=1 +CONFIG_NR_DRAM_BANKS=2 CONFIG_DISTRO_DEFAULTS=y CONFIG_OF_BOARD_SETUP=y # CONFIG_ARCH_FIXUP_FDT_MEMORY is not set |