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xilinx: use get_mem_top() to compute ram_top

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Use the get_mem_top function to compute the value of ram_top. This was
earlier done through LMB API's, which are no longer available till
after relocation. Use get_mem_top() instead to compute the ram_top
value.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Michal Simek <michal.simek@amd.com>
Tested-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/20241025172724.195093-3-sughosh.ganu@linaro.org
Signed-off-by: Michal Simek <michal.simek@amd.com>
This commit is contained in:
Sughosh Ganu
2024-10-25 22:57:24 +05:30
committed by Michal Simek
parent feb423a3a3
commit 62fbddf7c8
1 changed files with 25 additions and 0 deletions
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25
board/xilinx/common/board.c
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@@ -19,6 +19,7 @@
#include <i2c.h>
#include <linux/sizes.h>
#include <malloc.h>
#include <memtop.h>
#include <mtd_node.h>
#include "board.h"
#include <dm.h>
@@ -676,3 +677,27 @@ int ft_board_setup(void *blob, struct bd_info *bd)
return 0;
}
#endif
#ifndef MMU_SECTION_SIZE
#define MMU_SECTION_SIZE (1 * 1024 * 1024)
#endif
phys_addr_t board_get_usable_ram_top(phys_size_t total_size)
{
phys_size_t size;
phys_addr_t reg;
if (!total_size)
return gd->ram_top;
if (!IS_ALIGNED((ulong)gd->fdt_blob, 0x8))
panic("Not 64bit aligned DT location: %p\n", gd->fdt_blob);
size = ALIGN(CONFIG_SYS_MALLOC_LEN + total_size, MMU_SECTION_SIZE);
reg = get_mem_top(gd->ram_base, gd->ram_size, size,
(void *)gd->fdt_blob);
if (!reg)
reg = gd->ram_top - size;
return reg + size;
}