ARM: zynq: Enable capsule update for qspi and mmc

Generate dfu_alt_info setup at runtime for capsule update.
Enabling this feature will help with upgrading boards without remembering
what is where.

The similar change was done for ZynqMP by commit b17d9e575811 ("xilinx:
zynqmp: Add support for runtime dfu_alt_info setup").
Code needs to be enabled by CONFIG_SET_DFU_ALT_INFO.

And also enable capsule on disk for RAW firmware images with efidebug
command.

Two indexes are supported for SPL flow. Images can be generated like:
./tools/mkeficapsule --raw spl/boot.bin --index 1 capsule1.bin
./tools/mkeficapsule --raw u-boot.img --index 2 capsule2.bin

Then place them to SD card and load them:
load mmc 0 10000000 capsule1.bin && efidebug capsule update -v 10000000
load mmc 0 10000000 capsule2.bin && efidebug capsule update -v 10000000

FSBL flow will also work where only index 1 capsule is used. There
should be enough space for using boot.bin with bitstream too.

Zynq also support multiple boot locations in SPI or MMC but it is not wired
by this patch.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/bea5fc75a87a5971f118b46bab4aa7ca39a629c6.1630061610.git.michal.simek@xilinx.com

diff --git a/board/xilinx/zynq/board.c b/board/xilinx/zynq/board.c
index 61e0a90c119b65b33e417fc70ee9dc793bbfb099..1111ad6fca9c4ea5c29c0b317595c9018dd351d4 100644 (file)
--- a/board/xilinx/zynq/board.c
+++ b/board/xilinx/zynq/board.c
@@ -13,6 +13,7 @@
 #include <fdtdec.h>
 #include <fpga.h>
 #include <malloc.h>
+#include <memalign.h>
 #include <mmc.h>
 #include <watchdog.h>
 #include <wdt.h>
@@ -151,3 +152,37 @@ enum env_location env_get_location(enum env_operation op, int prio)
                return ENVL_NOWHERE;
        }
 }
+
+#if defined(CONFIG_SET_DFU_ALT_INFO)
+
+#define DFU_ALT_BUF_LEN                SZ_1K
+
+void set_dfu_alt_info(char *interface, char *devstr)
+{
+       ALLOC_CACHE_ALIGN_BUFFER(char, buf, DFU_ALT_BUF_LEN);
+
+       if (env_get("dfu_alt_info"))
+               return;
+
+       memset(buf, 0, sizeof(buf));
+
+       switch ((zynq_slcr_get_boot_mode()) & ZYNQ_BM_MASK) {
+       case ZYNQ_BM_SD:
+               snprintf(buf, DFU_ALT_BUF_LEN,
+                        "mmc 0:1=boot.bin fat 0 1;"
+                        "u-boot.img fat 0 1");
+               break;
+       case ZYNQ_BM_QSPI:
+               snprintf(buf, DFU_ALT_BUF_LEN,
+                        "sf 0:0=boot.bin raw 0 0x1500000;"
+                        "u-boot.img raw 0x%x 0x500000",
+                        CONFIG_SYS_SPI_U_BOOT_OFFS);
+               break;
+       default:
+               return;
+       }
+
+       env_set("dfu_alt_info", buf);
+       puts("DFU alt info setting: done\n");
+}
+#endif

diff --git a/configs/xilinx_zynq_virt_defconfig b/configs/xilinx_zynq_virt_defconfig
index 66af37ae185734bad68341ea786a6f1a52ce71b0..d1595e2a1af4b0920ce82cec8d81a255a28f4bd4 100644 (file)
--- a/configs/xilinx_zynq_virt_defconfig
+++ b/configs/xilinx_zynq_virt_defconfig
@@ -49,6 +49,7 @@ CONFIG_CMD_USB=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_TFTPPUT=y
 CONFIG_CMD_CACHE=y
+CONFIG_CMD_EFIDEBUG=y
 CONFIG_CMD_TIME=y
 CONFIG_CMD_TIMER=y
 CONFIG_CMD_EXT4_WRITE=y
@@ -69,6 +70,8 @@ CONFIG_SPL_DM_SEQ_ALIAS=y
 CONFIG_DFU_TIMEOUT=y
 CONFIG_DFU_MMC=y
 CONFIG_DFU_RAM=y
+CONFIG_DFU_SF=y
+CONFIG_SET_DFU_ALT_INFO=y
 CONFIG_SYS_DFU_DATA_BUF_SIZE=0x600000
 CONFIG_FPGA_XILINX=y
 CONFIG_FPGA_ZYNQPL=y
@@ -122,3 +125,6 @@ CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_USB_FUNCTION_THOR=y
 CONFIG_DISPLAY=y
 CONFIG_SPL_GZIP=y
+CONFIG_EFI_RUNTIME_UPDATE_CAPSULE=y
+CONFIG_EFI_CAPSULE_ON_DISK=y
+CONFIG_EFI_CAPSULE_FIRMWARE_RAW=y