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drivers: remoteproc: ti_k3 : enable secure booting with firmware images

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Remoteproc firmware images aren't authenticated in the current boot flow.
Authenticates remoteproc firmware images to complete the root of trust
in secure booting.

Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> # Intel Edison
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Manorit Chawdhry 2024-05-21 16:26:46 +05:30 • committed by Tom Rini
parent 145a23450c
commit 5b5bb51af8
2 changed files with 8 additions and 0 deletions
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4
drivers/remoteproc/ti_k3_dsp_rproc.c
View file

@ -21,6 +21,7 @@
#include <linux/sizes.h>
#include <linux/soc/ti/ti_sci_protocol.h>
#include "ti_sci_proc.h"
#include <mach/security.h>
#define KEYSTONE_RPROC_LOCAL_ADDRESS_MASK (SZ_16M - 1)
@ -127,6 +128,7 @@ static int k3_dsp_load(struct udevice *dev, ulong addr, ulong size)
struct k3_dsp_privdata *dsp = dev_get_priv(dev);
struct k3_dsp_boot_data *data = dsp->data;
u32 boot_vector;
void *image_addr = (void *)addr;
int ret;
if (dsp->in_use) {
@ -148,6 +150,8 @@ static int k3_dsp_load(struct udevice *dev, ulong addr, ulong size)
goto proc_release;
}
ti_secure_image_post_process(&image_addr, &size);
ret = rproc_elf_load_image(dev, addr, size);
if (ret < 0) {
dev_err(dev, "Loading elf failed %d\n", ret);

4
drivers/remoteproc/ti_k3_r5f_rproc.c
View file

@ -20,6 +20,7 @@
#include <linux/kernel.h>
#include <linux/soc/ti/ti_sci_protocol.h>
#include "ti_sci_proc.h"
#include <mach/security.h>
/*
* R5F's view of this address can either be for ATCM or BTCM with the other
@ -301,6 +302,7 @@ static int k3_r5f_load(struct udevice *dev, ulong addr, ulong size)
u64 boot_vector;
u32 ctrl, sts, cfg = 0;
bool mem_auto_init;
void *image_addr = (void *)addr;
int ret;
dev_dbg(dev, "%s addr = 0x%lx, size = 0x%lx\n", __func__, addr, size);
@ -328,6 +330,8 @@ static int k3_r5f_load(struct udevice *dev, ulong addr, ulong size)
k3_r5f_init_tcm_memories(core, mem_auto_init);
ti_secure_image_post_process(&image_addr, &size);
ret = rproc_elf_load_image(dev, addr, size);
if (ret < 0) {
dev_err(dev, "Loading elf failedi %d\n", ret);