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feat(plat/rcar3): emit RPC status to DT fragment if RPC unlocked

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In case the RCAR_RPC_HYPERFLASH_LOCKED is 0, emit DT node /soc/rpc@ee200000
with property status = "okay" into the DT fragment passed to subsequent
software, to indicate the RPC is unlocked.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: Id93c4573ab1c62cf13fa5a803dc5818584a2c13a
This commit is contained in:
Marek Vasut 2021-07-10 17:59:05 +02:00
parent f95d551217
commit 12c75c8886
1 changed files with 30 additions and 0 deletions
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30
plat/renesas/rcar/bl2_plat_setup.c
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@ -565,6 +565,33 @@ static void bl2_populate_compatible_string(void *dt)
} }
} }
static void bl2_add_rpc_node(void)
{
#if (RCAR_RPC_HYPERFLASH_LOCKED == 0)
int ret, node;
node = ret = fdt_add_subnode(fdt, 0, "soc");
if (ret < 0) {
goto err;
}
node = ret = fdt_add_subnode(fdt, node, "rpc@ee200000");
if (ret < 0) {
goto err;
}
ret = fdt_setprop_string(fdt, node, "status", "okay");
if (ret < 0) {
goto err;
}
return;
err:
NOTICE("BL2: Cannot add RPC node to FDT (ret=%i)\n", ret);
panic();
#endif
}
static void bl2_add_dram_entry(uint64_t start, uint64_t size) static void bl2_add_dram_entry(uint64_t start, uint64_t size)
{ {
char nodename[32] = { 0 }; char nodename[32] = { 0 };
@ -1010,6 +1037,9 @@ lcm_state:
/* Add platform compatible string */ /* Add platform compatible string */
bl2_populate_compatible_string(fdt); bl2_populate_compatible_string(fdt);
/* Enable RPC if unlocked */
bl2_add_rpc_node();
/* Print DRAM layout */ /* Print DRAM layout */
bl2_advertise_dram_size(product); bl2_advertise_dram_size(product);