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arm: mach-k3: sysfw-loader: Add support to download SYSFW via DFU

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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>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
This commit is contained in:
Vignesh Raghavendra 2020-01-27 17:59:24 +05:30 committed by Lokesh Vutla
parent eabd591015
commit e15b6e35b1
1 changed files with 30 additions and 0 deletions
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30
arch/arm/mach-k3/sysfw-loader.c
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@ -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",