arm: K3: sysfw-loader: Allow loading SYSFW via Y-Modem

[oweals/u-boot.git] / arch / arm / mach-k3 / sysfw-loader.c

diff --git a/arch/arm/mach-k3/sysfw-loader.c b/arch/arm/mach-k3/sysfw-loader.c
index 7a482bdc8a3a9e7cfd132eb60ce50ed50d5ede80..5903bbe12aa3b46231c2f106b8789efec1eb21c7 100644 (file)
--- a/arch/arm/mach-k3/sysfw-loader.c
+++ b/arch/arm/mach-k3/sysfw-loader.c
@@ -12,6 +12,9 @@
 #include <remoteproc.h>
 #include <linux/soc/ti/ti_sci_protocol.h>
 #include <asm/arch/sys_proto.h>
+#include "common.h"
+
+DECLARE_GLOBAL_DATA_PTR;
 
 /* Name of the FIT image nodes for SYSFW and its config data */
 #define SYSFW_FIRMWARE                 "sysfw.bin"
@@ -214,6 +217,24 @@ void k3_sysfw_loader(void (*config_pm_done_callback)(void))
                                   0);
 #endif
                break;
+#endif
+#if CONFIG_IS_ENABLED(YMODEM_SUPPORT)
+       case BOOT_DEVICE_UART:
+#ifdef CONFIG_K3_EARLY_CONS
+               /*
+                * Establish a serial console if not yet available as required
+                * for UART-based boot. For this use the early console feature
+                * that allows setting up a UART for use before SYSFW has been
+                * brought up. Note that the associated UART module's clocks
+                * must have gotten enabled by the ROM bootcode which will be
+                * the case when continuing to boot serially from the same
+                * UART that the ROM loaded the initial bootloader from.
+                */
+               if (!gd->have_console)
+                       early_console_init();
+#endif
+               ret = spl_ymodem_load_image(&spl_image, &bootdev);
+               break;
 #endif
        default:
                panic("Loading SYSFW image from device %u not supported!\n",