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lib: utils/fdt: Add fdt_get_address_rw() helper

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Help tracking the lifecycle of the FDT blob by indicating which parts of
the firmware modify it, and thus invalidate any previously-obtained
offsets or pointers to data inside the blob.

Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Samuel Holland
2024-07-30 21:58:57 -07:00
committed by Anup Patel
parent c36801841e
commit 8cb7f89d7c
6 changed files with 13 additions and 8 deletions
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4
platform/fpga/openpiton/platform.c
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@@ -70,7 +70,7 @@ static struct aclint_mtimer_data mtimer = {
*/
static int openpiton_early_init(bool cold_boot)
{
void *fdt;
const void *fdt;
struct platform_uart_data uart_data = { 0 };
struct plic_data plic_data;
unsigned long aclint_freq;
@@ -118,7 +118,7 @@ static int openpiton_final_init(bool cold_boot)
if (!cold_boot)
return 0;
fdt = fdt_get_address();
fdt = fdt_get_address_rw();
fdt_fixups(fdt);
return 0;