diff options
Diffstat (limited to 'drivers/mci')
| -rw-r--r-- | drivers/mci/imx-esdhc-pbl.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/mci/imx-esdhc-pbl.c b/drivers/mci/imx-esdhc-pbl.c index 49514fc538..fb27c84163 100644 --- a/drivers/mci/imx-esdhc-pbl.c +++ b/drivers/mci/imx-esdhc-pbl.c @@ -425,6 +425,52 @@ int imx8_esdhc_start_image(int instance) return esdhc_start_image(&esdhc, MX8MQ_DDR_CSD1_BASE_ADDR, MX8MQ_ATF_BL33_BASE_ADDR, SZ_32K); } + +int imx8_esdhc_load_piggy(int instance) +{ + void *buf = (void *)MX8MQ_ATF_BL33_BASE_ADDR; + struct imx_flash_header_v2 *hdr = NULL; + void *bb = 0; + struct esdhc esdhc; + int ret, len; + int offset = SZ_32K; + + + switch (instance) { + case 0: + esdhc.regs = IOMEM(MX8MQ_USDHC1_BASE_ADDR); + break; + case 1: + esdhc.regs = IOMEM(MX8MQ_USDHC2_BASE_ADDR); + break; + default: + return -EINVAL; + } + + esdhc.is_be = 0; + esdhc.is_mx6 = 1; + + ret = esdhc_search_header(&esdhc, &hdr, buf, &offset); + if (ret) + return ret; + + len = offset + hdr->boot_data.size + piggydata_size(); + len = ALIGN(len, SECTOR_SIZE); + + ret = esdhc_read_blocks(&esdhc, buf, len); + + /* + * Calculate location of the piggydata at the offset loaded into RAM + */ + buf = buf + offset + hdr->boot_data.size; + /* + * Barebox expects the piggydata right behind the PBL in the beginning + * of RAM. + */ + bb = (void *) MX8MQ_DDR_CSD1_BASE_ADDR + barebox_pbl_size; + memcpy(bb, buf, piggydata_size()); + return ret; +} #endif #ifdef CONFIG_ARCH_LS1046 |