Add support to download SYSFW into internal RAM via DFU in DFU boot mode. Prepare a DFU config entity entry dynamically using buffer address allocated for SYSFW and start DFU gadget to get SYSFW.
Signed-off-by: Vignesh Raghavendra vigneshr@ti.com --- arch/arm/mach-k3/sysfw-loader.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+)
diff --git a/arch/arm/mach-k3/sysfw-loader.c b/arch/arm/mach-k3/sysfw-loader.c index 5903bbe12aa3..94dbeb9437d9 100644 --- a/arch/arm/mach-k3/sysfw-loader.c +++ b/arch/arm/mach-k3/sysfw-loader.c @@ -11,6 +11,10 @@ #include <malloc.h> #include <remoteproc.h> #include <linux/soc/ti/ti_sci_protocol.h> +#include <g_dnl.h> +#include <usb.h> +#include <dfu.h> + #include <asm/arch/sys_proto.h> #include "common.h"
@@ -172,6 +176,27 @@ static void k3_sysfw_configure_using_fit(void *fit, ret); }
+#if CONFIG_IS_ENABLED(DFU) +static int k3_sysfw_dfu_download(void *addr) +{ + char dfu_str[50]; + int ret; + + sprintf(dfu_str, "sysfw.itb ram 0x%p 0x%x", addr, + CONFIG_K3_SYSFW_IMAGE_SIZE_MAX); + ret = dfu_config_entities(dfu_str, "ram", "0"); + if (ret) { + dfu_free_entities(); + goto exit; + } + + run_usb_dnl_gadget(0, "usb_dnl_dfu"); +exit: + dfu_free_entities(); + return ret; +} +#endif + void k3_sysfw_loader(void (*config_pm_done_callback)(void)) { struct spl_image_info spl_image = { 0 }; @@ -235,6 +260,11 @@ void k3_sysfw_loader(void (*config_pm_done_callback)(void)) #endif ret = spl_ymodem_load_image(&spl_image, &bootdev); break; +#endif +#if CONFIG_IS_ENABLED(DFU) + case BOOT_DEVICE_DFU: + ret = k3_sysfw_dfu_download(sysfw_load_address); + break; #endif default: panic("Loading SYSFW image from device %u not supported!\n",