[PATCH v4 11/19] arm: mach-k3: j7200: Detect if ROM has already loaded sysfw

[Lokesh Vutla]

Detect if sysfw is already loaded by ROM and pass this information to
sysfw loader. Based on this information sysfw loader either loads the
sysfw image from boot media or just receives the boot notification
message form sysfw.

Signed-off-by: Lokesh Vutla <lokeshvutla at ti.com>
Reviewed-by: Suman Anna <s-anna at ti.com>
---
 arch/arm/mach-k3/common.c     | 8 ++++++++
 arch/arm/mach-k3/common.h     | 2 ++
 arch/arm/mach-k3/j721e_init.c | 3 ++-
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-k3/common.c b/arch/arm/mach-k3/common.c
index f4d7c3d71e..8c903f14ff 100644
--- a/arch/arm/mach-k3/common.c
+++ b/arch/arm/mach-k3/common.c
@@ -72,6 +72,14 @@ void mmr_unlock(phys_addr_t base, u32 partition)
 	writel(CTRLMMR_LOCK_KICK1_UNLOCK_VAL, part_base + CTRLMMR_LOCK_KICK1);
 }
 
+bool is_rom_loaded_sysfw(struct rom_extended_boot_data *data)
+{
+	if (strncmp(data->header, K3_ROM_BOOT_HEADER_MAGIC, 7))
+		return false;
+
+	return data->num_components > 1;
+}
+
 DECLARE_GLOBAL_DATA_PTR;
 
 #ifdef CONFIG_K3_EARLY_CONS
diff --git a/arch/arm/mach-k3/common.h b/arch/arm/mach-k3/common.h
index 32d07340bf..a6dbc7808b 100644
--- a/arch/arm/mach-k3/common.h
+++ b/arch/arm/mach-k3/common.h
@@ -7,6 +7,7 @@
  */
 
 #include <asm/armv7_mpu.h>
+#include <asm/hardware.h>
 
 #define J721E  0xbb64
 #define J7200  0xbb6d
@@ -26,3 +27,4 @@ int load_firmware(char *name_fw, char *name_loadaddr, u32 *loadaddr);
 void k3_sysfw_print_ver(void);
 void spl_enable_dcache(void);
 void mmr_unlock(phys_addr_t base, u32 partition);
+bool is_rom_loaded_sysfw(struct rom_extended_boot_data *data);
diff --git a/arch/arm/mach-k3/j721e_init.c b/arch/arm/mach-k3/j721e_init.c
index 6246de3a26..a36e4ed603 100644
--- a/arch/arm/mach-k3/j721e_init.c
+++ b/arch/arm/mach-k3/j721e_init.c
@@ -177,7 +177,8 @@ void board_init_f(ulong dummy)
 	 * callback hook, effectively switching on (or over) the console
 	 * output.
 	 */
-	k3_sysfw_loader(false, k3_mmc_stop_clock, k3_mmc_restart_clock);
+	k3_sysfw_loader(is_rom_loaded_sysfw(&bootdata),
+			k3_mmc_stop_clock, k3_mmc_restart_clock);
 
 	/* Prepare console output */
 	preloader_console_init();
-- 
2.23.0