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kboot: Expose ADT in phram MTD reserved memory node

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Requires CONFIG_MTD_PHRAM in Linux.

Signed-off-by: Janne Grunau <j@jannau.net>
This commit is contained in:
Janne Grunau 2024-08-10 23:29:03 +02:00 committed by Hector Martin
parent d76dd3a16e
commit 1d5556ccf3
1 changed files with 19 additions and 0 deletions
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19
src/kboot.c
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@ -2265,6 +2265,23 @@ int kboot_set_chosen(const char *name, const char *value)
return i;
}
static int dt_setup_mtd_phram(void)
{
char node_name[64];
snprintf(node_name, sizeof(node_name), "flash@%lx", (u64)adt);
int node = dt_get_or_add_reserved_mem(node_name, "phram", false, (u64)adt,
ALIGN_UP(cur_boot_args.devtree_size, SZ_16K));
if (node > 0) {
int ret = fdt_setprop_string(dt, node, "label", "adt");
if (ret)
bail("FDT: failed to setup ADT MTD phram label\n");
}
return 0;
}
int kboot_prepare_dt(void *fdt)
{
if (dt) {
@ -2290,6 +2307,8 @@ int kboot_prepare_dt(void *fdt)
if (fdt_add_mem_rsv(dt, (u64)_base, ((u64)_end) - ((u64)_base)))
bail("FDT: couldn't add reservation for m1n1\n");
dt_setup_mtd_phram();
if (dt_set_chosen())
return -1;
if (dt_set_serial_number())