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-rw-r--r--src/soc/nvidia/tegra124/soc.c6
-rw-r--r--src/vendorcode/google/chromeos/chromeos.h2
-rw-r--r--src/vendorcode/google/chromeos/vboot_handoff.c12
3 files changed, 19 insertions, 1 deletions
diff --git a/src/soc/nvidia/tegra124/soc.c b/src/soc/nvidia/tegra124/soc.c
index 08a4cf8e13..48e50bdc3f 100644
--- a/src/soc/nvidia/tegra124/soc.c
+++ b/src/soc/nvidia/tegra124/soc.c
@@ -26,6 +26,7 @@
#include <soc/nvidia/tegra124/sdram.h>
#include "chip.h"
#include <soc/display.h>
+#include <vendorcode/google/chromeos/chromeos.h>
/* this sucks, but for now, fb size/location are hardcoded.
* Will break if we get 2. Sigh.
@@ -50,7 +51,10 @@ static void soc_enable(device_t dev)
static void soc_init(device_t dev)
{
- display_startup(dev);
+ if (vboot_skip_display_init())
+ printk(BIOS_INFO, "Skipping display init.\n");
+ else
+ display_startup(dev);
printk(BIOS_INFO, "CPU: Tegra124\n");
}
diff --git a/src/vendorcode/google/chromeos/chromeos.h b/src/vendorcode/google/chromeos/chromeos.h
index c162891fdd..6e3b2dacf1 100644
--- a/src/vendorcode/google/chromeos/chromeos.h
+++ b/src/vendorcode/google/chromeos/chromeos.h
@@ -47,6 +47,7 @@ void *vboot_get_region(uintptr_t offset_addr, size_t size, void *dest);
int vboot_get_handoff_info(void **addr, uint32_t *size);
int vboot_enable_developer(void);
int vboot_enable_recovery(void);
+int vboot_skip_display_init(void);
#else
static inline void vboot_verify_firmware(struct romstage_handoff *h) {}
static inline void *vboot_get_payload(int *len) { return NULL; }
@@ -54,6 +55,7 @@ static inline int vboot_get_handoff_info(void **addr, uint32_t *size)
{
return -1;
}
+static inline int vboot_skip_display_init(void) { return 0; }
#endif
#include "gnvs.h"
diff --git a/src/vendorcode/google/chromeos/vboot_handoff.c b/src/vendorcode/google/chromeos/vboot_handoff.c
index c3c5a138d7..71ac5cdb48 100644
--- a/src/vendorcode/google/chromeos/vboot_handoff.c
+++ b/src/vendorcode/google/chromeos/vboot_handoff.c
@@ -54,6 +54,18 @@ int vboot_enable_recovery(void)
return !!(vbho->init_params.out_flags & VB_INIT_OUT_ENABLE_RECOVERY);
}
+int vboot_skip_display_init(void)
+{
+ struct vboot_handoff *vbho;
+
+ vbho = cbmem_find(CBMEM_ID_VBOOT_HANDOFF);
+
+ if (vbho == NULL)
+ return 0;
+
+ return !(vbho->init_params.out_flags & VB_INIT_OUT_ENABLE_DISPLAY);
+}
+
void *vboot_get_region(uintptr_t offset_addr, size_t size, void *dest)
{
if (IS_ENABLED(CONFIG_SPI_FLASH_MEMORY_MAPPED)) {