[PATCH v2 2/2] board: libre-computer: aml-s805x-cc: Enable capsule updates

[Neil Armstrong]

Since the aml-s805-cc works well using EFI, and now the capsule updates
backend has been merged, let's enable the missing configs and add
the required structures to support it.

The GUID is dynamically generated for the board, to get it:
=> efidebug capsule esrt
========================================
ESRT: fw_resource_count=1
ESRT: fw_resource_count_max=1
ESRT: fw_resource_version=1
[entry 0]==============================
ESRT: fw_class=B8079027-9B2C-57D4-86AA-CC782ADA598C
ESRT: fw_type=unknown
ESRT: fw_version=0
ESRT: lowest_supported_fw_version=0
ESRT: capsule_flags=0
ESRT: last_attempt_version=0
ESRT: last_attempt_status=success
========================================

On the host (with the aml_encrypt_gxl result binary):
$ eficapsule --guid B8079027-9B2C-57D4-86AA-CC782ADA598C -i 1 u-boot.bin u-boot.cap

On the board (from USB disk containing u-boot.cap at root):
=> load usb 0:1 $kernel_addr_r u-boot.cap
=> efidebug capsule update $kernel_addr_r

The binary will then be flashed on the SPI.

Reviewed-by: Ilias Apalodimas <ilias.apalodimas at linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong at linaro.org>
---
 board/libre-computer/aml-s805x-ac/aml-s805x-ac.c | 24 ++++++++++++++++++++++++
 configs/libretech-ac_defconfig                   |  6 ++++++
 2 files changed, 30 insertions(+)

diff --git a/board/libre-computer/aml-s805x-ac/aml-s805x-ac.c b/board/libre-computer/aml-s805x-ac/aml-s805x-ac.c
index ae9834c0bf8..94cf5b4361f 100644
--- a/board/libre-computer/aml-s805x-ac/aml-s805x-ac.c
+++ b/board/libre-computer/aml-s805x-ac/aml-s805x-ac.c
@@ -8,6 +8,7 @@
 #include <env.h>
 #include <init.h>
 #include <net.h>
+#include <efi_loader.h>
 #include <asm/io.h>
 #include <asm/arch/gx.h>
 #include <asm/arch/sm.h>
@@ -19,6 +20,29 @@
 #define EFUSE_MAC_OFFSET	52
 #define EFUSE_MAC_SIZE		6
 
+struct efi_fw_image fw_images[] = {
+	{
+		.fw_name = u"AML_S805X_AC_BOOT",
+		.image_index = 1,
+	},
+};
+
+struct efi_capsule_update_info update_info = {
+	.dfu_string = "sf 0:0=u-boot-bin raw 0 0x10000",
+	.num_images = ARRAY_SIZE(fw_images),
+	.images = fw_images,
+};
+
+#if IS_ENABLED(CONFIG_SET_DFU_ALT_INFO)
+void set_dfu_alt_info(char *interface, char *devstr)
+{
+	if (strcmp(interface, "ram") == 0)
+		env_set("dfu_alt_info", "fitimage ram 0x08080000 0x4000000");
+	else if (IS_ENABLED(CONFIG_EFI_HAVE_CAPSULE_SUPPORT))
+		env_set("dfu_alt_info", update_info.dfu_string);
+}
+#endif
+
 int misc_init_r(void)
 {
 	u8 mac_addr[EFUSE_MAC_SIZE + 1];
diff --git a/configs/libretech-ac_defconfig b/configs/libretech-ac_defconfig
index 11d9795e05d..7763a14f203 100644
--- a/configs/libretech-ac_defconfig
+++ b/configs/libretech-ac_defconfig
@@ -35,6 +35,7 @@ CONFIG_SYS_MAXARGS=32
 # CONFIG_CMD_IMI is not set
 CONFIG_CMD_ADC=y
 CONFIG_CMD_DFU=y
+CONFIG_CMD_NVEDIT_EFI=y
 CONFIG_CMD_GPIO=y
 # CONFIG_CMD_LOADS is not set
 CONFIG_CMD_MMC=y
@@ -42,6 +43,7 @@ CONFIG_CMD_SF_TEST=y
 CONFIG_CMD_SPI=y
 CONFIG_CMD_USB=y
 CONFIG_CMD_USB_MASS_STORAGE=y
+CONFIG_CMD_EFIDEBUG=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_REGULATOR=y
 CONFIG_OF_CONTROL=y
@@ -49,6 +51,8 @@ CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_SARADC_MESON=y
 CONFIG_DFU_RAM=y
+CONFIG_DFU_SF=y
+CONFIG_SET_DFU_ALT_INFO=y
 CONFIG_MMC_MESON_GX=y
 CONFIG_MTD=y
 CONFIG_DM_MTD=y
@@ -98,3 +102,5 @@ CONFIG_VIDEO_BMP_RLE8=y
 CONFIG_BMP_16BPP=y
 CONFIG_BMP_24BPP=y
 CONFIG_BMP_32BPP=y
+CONFIG_EFI_RUNTIME_UPDATE_CAPSULE=y
+CONFIG_EFI_CAPSULE_FIRMWARE_RAW=y

-- 
2.34.1