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author | Tom Rini <trini@konsulko.com> | 2015-09-03 18:57:09 (GMT) |
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committer | Tom Rini <trini@konsulko.com> | 2015-09-03 18:57:09 (GMT) |
commit | c9feb427aba860ebc79f9851a1bb49cc456a2d48 (patch) | |
tree | 6a80def1806386e2854d57f740264c6744d96e1d /tools/rkspi.c | |
parent | da9d8580ff9ce17452ef931072e5799a9df8807f (diff) | |
parent | f2acc55e3d28e96a6fcc060a7081eb4e2ad96350 (diff) | |
download | u-boot-fsl-qoriq-c9feb427aba860ebc79f9851a1bb49cc456a2d48.tar.xz |
Merge git://git.denx.de/u-boot-rockchip
Diffstat (limited to 'tools/rkspi.c')
-rw-r--r-- | tools/rkspi.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/tools/rkspi.c b/tools/rkspi.c new file mode 100644 index 0000000..a3c4c73 --- /dev/null +++ b/tools/rkspi.c @@ -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 +); |