lib: Rewrite qemu-armv7 ramdetect
* Move armv7 RAM dection to a common place
* Enable it for all emulated platforms
* Use 32bit probe values and restore memory even on failure
* Use the new logic on the following boards:
** qemu-armv7
** qemu-riscv
Tested on qemu-system-riscv:
Fixes kernel panic due to wrong memory limits reported.
Change-Id: I37386c6a95bfc3b7b25aeae32c6e14cff9913513
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33934
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/src/soc/ucb/riscv/cbmem.c b/src/soc/ucb/riscv/cbmem.c
index 2ee400a..542e08d 100644
--- a/src/soc/ucb/riscv/cbmem.c
+++ b/src/soc/ucb/riscv/cbmem.c
@@ -12,16 +12,10 @@
*/
#include <cbmem.h>
+#include <symbols.h>
+#include <ramdetect.h>
void *cbmem_top(void)
{
- uintptr_t base;
- size_t size;
-
- /* Use dummy values until we can query the memory size again */
- //query_mem(configstring(), &base, &size);
- base = 0x80000000;
- size = 128 * MiB;
-
- return (void *)(base + size);
+ return _dram + (probe_ramsize((uintptr_t)_dram, CONFIG_DRAM_SIZE_MB) * MiB);
}