|
@@ -0,0 +1,119 @@
|
|
|
+/*
|
|
|
+ * (C) Copyright 2015 Google, Inc
|
|
|
+ * Written by Simon Glass <sjg@chromium.org>
|
|
|
+ *
|
|
|
+ * SPDX-License-Identifier: GPL-2.0+
|
|
|
+ *
|
|
|
+ * See README.rockchip for details of the rkspi format
|
|
|
+ */
|
|
|
+
|
|
|
+#include "imagetool.h"
|
|
|
+#include <image.h>
|
|
|
+#include <rc4.h>
|
|
|
+#include "mkimage.h"
|
|
|
+#include "rkcommon.h"
|
|
|
+
|
|
|
+enum {
|
|
|
+ RKSPI_SPL_HDR_START = RK_CODE1_OFFSET * RK_BLK_SIZE,
|
|
|
+ RKSPI_SPL_START = RKSPI_SPL_HDR_START + 4,
|
|
|
+ RKSPI_HEADER_LEN = RKSPI_SPL_START,
|
|
|
+ RKSPI_SECT_LEN = RK_BLK_SIZE * 4,
|
|
|
+};
|
|
|
+
|
|
|
+static char dummy_hdr[RKSPI_HEADER_LEN];
|
|
|
+
|
|
|
+static int rkspi_check_params(struct image_tool_params *params)
|
|
|
+{
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int rkspi_verify_header(unsigned char *buf, int size,
|
|
|
+ struct image_tool_params *params)
|
|
|
+{
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static void rkspi_print_header(const void *buf)
|
|
|
+{
|
|
|
+}
|
|
|
+
|
|
|
+static void rkspi_set_header(void *buf, struct stat *sbuf, int ifd,
|
|
|
+ struct image_tool_params *params)
|
|
|
+{
|
|
|
+ int sector;
|
|
|
+ unsigned int size;
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ size = params->orig_file_size;
|
|
|
+ ret = rkcommon_set_header(buf, size);
|
|
|
+ debug("size %x\n", size);
|
|
|
+ if (ret) {
|
|
|
+ /* TODO(sjg@chromium.org): This method should return an error */
|
|
|
+ printf("Warning: SPL image is too large (size %#x) and will not boot\n",
|
|
|
+ size);
|
|
|
+ }
|
|
|
+
|
|
|
+ memcpy(buf + RKSPI_SPL_HDR_START, "RK32", 4);
|
|
|
+
|
|
|
+ /*
|
|
|
+ * Spread the image out so we only use the first 2KB of each 4KB
|
|
|
+ * region. This is a feature of the SPI format required by the Rockchip
|
|
|
+ * boot ROM. Its rationale is unknown.
|
|
|
+ */
|
|
|
+ for (sector = size / RKSPI_SECT_LEN - 1; sector >= 0; sector--) {
|
|
|
+ printf("sector %u\n", sector);
|
|
|
+ memmove(buf + sector * RKSPI_SECT_LEN * 2,
|
|
|
+ buf + sector * RKSPI_SECT_LEN,
|
|
|
+ RKSPI_SECT_LEN);
|
|
|
+ memset(buf + sector * RKSPI_SECT_LEN * 2 + RKSPI_SECT_LEN,
|
|
|
+ '\0', RKSPI_SECT_LEN);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static int rkspi_extract_subimage(void *buf, struct image_tool_params *params)
|
|
|
+{
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int rkspi_check_image_type(uint8_t type)
|
|
|
+{
|
|
|
+ if (type == IH_TYPE_RKSPI)
|
|
|
+ return EXIT_SUCCESS;
|
|
|
+ else
|
|
|
+ return EXIT_FAILURE;
|
|
|
+}
|
|
|
+
|
|
|
+/* We pad the file out to a fixed size - this method returns that size */
|
|
|
+static int rkspi_vrec_header(struct image_tool_params *params,
|
|
|
+ struct image_type_params *tparams)
|
|
|
+{
|
|
|
+ int pad_size;
|
|
|
+
|
|
|
+ pad_size = (RK_MAX_CODE1_SIZE + 0x7ff) / 0x800 * 0x800;
|
|
|
+ params->orig_file_size = pad_size;
|
|
|
+
|
|
|
+ /* We will double the image size due to the SPI format */
|
|
|
+ pad_size *= 2;
|
|
|
+ pad_size += RKSPI_SPL_HDR_START;
|
|
|
+ debug("pad_size %x\n", pad_size);
|
|
|
+
|
|
|
+ return pad_size - params->file_size;
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * rk_spi parameters
|
|
|
+ */
|
|
|
+U_BOOT_IMAGE_TYPE(
|
|
|
+ rkspi,
|
|
|
+ "Rockchip SPI Boot Image support",
|
|
|
+ RKSPI_HEADER_LEN,
|
|
|
+ dummy_hdr,
|
|
|
+ rkspi_check_params,
|
|
|
+ rkspi_verify_header,
|
|
|
+ rkspi_print_header,
|
|
|
+ rkspi_set_header,
|
|
|
+ rkspi_extract_subimage,
|
|
|
+ rkspi_check_image_type,
|
|
|
+ NULL,
|
|
|
+ rkspi_vrec_header
|
|
|
+);
|