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boot: fdt: Turn all addresses and sizes into u64

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In case of systems where DRAM bank ends at the edge of 32bit boundary,
start + size calculations would overflow. This happens on STM32MP15xx
with 1 DRAM bank starting at 0xc0000000 and 1 GiB of DRAM. This is a
usual 32bit system DRAM size overflow, fix it by doing all DRAM size
and offset calculations using u64 types. This also covers a case where
a 32bit PAE system might be able to address up to 36bits of DRAM.

Fixes: a4df06e41f ("boot: fdt: Change type of env_get_bootm_low() to phys_addr_t")
Signed-off-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Marek Vasut 2024-04-14 20:37:20 +02:00 committed by Tom Rini
parent 91f5dac3f6
commit 16da853114
1 changed files with 1 additions and 4 deletions
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5
boot/image-fdt.c
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@ -158,13 +158,10 @@ void boot_fdt_add_mem_rsv_regions(struct lmb *lmb, void *fdt_blob)
*/
int boot_relocate_fdt(struct lmb *lmb, char **of_flat_tree, ulong *of_size)
{
u64 start, size, usable, addr, low, mapsize;
void *fdt_blob = *of_flat_tree;
void *of_start = NULL;
phys_addr_t start, size, usable;
char *fdt_high;
phys_addr_t addr;
phys_addr_t low;
phys_size_t mapsize;
ulong of_len = 0;
int bank;
int err;