On 03/03/2017 05:45 AM, Zhiqiang Hou wrote:
> From: Hou Zhiqiang <zhiqiang....@nxp.com>
>
> Signed-off-by: Hou Zhiqiang <zhiqiang....@nxp.com>
> ---
> arch/arm/cpu/armv8/fsl-layerscape/ppa.c | 118
> +++++++++++++++++++++++++++++++-
> 1 file changed, 117 insertions(+), 1 deletion(-)
<snip>
>
> #ifdef CONFIG_SYS_LS_PPA_FW_IN_XIP
> ppa_fit_addr = (void *)CONFIG_SYS_LS_PPA_FW_ADDR;
> + debug("%s: PPA image load from XIP\n", __func__);
> +#else /* !CONFIG_SYS_LS_PPA_FW_IN_XIP */
> + size_t fw_length, fdt_header_len = sizeof(struct fdt_header);
> +
> + /* Copy PPA image from MMC/SD/NAND to allocated memory */
> +#ifdef CONFIG_SYS_LS_PPA_FW_IN_MMC
> + struct mmc *mmc;
> + int dev = CONFIG_SYS_MMC_ENV_DEV;
> + struct fdt_header *fitp;
> + u32 cnt;
> + u32 blk = CONFIG_SYS_LS_PPA_FW_ADDR / 512;
> +
> + debug("%s: PPA image load from eMMC/SD\n", __func__);
> +
> + mmc_initialize(gd->bd);
> + mmc = find_mmc_device(dev);
> + if (!mmc) {
> + printf("PPA: MMC cannot find device for PPA firmware\n");
> + return -ENODEV;
> + }
> +
> + mmc_init(mmc);
> +
> + fitp = malloc(roundup(fdt_header_len, 512));
> + if (!fitp) {
> + printf("PPA: malloc failed for FIT header(size 0x%zx)\n",
> + roundup(fdt_header_len, 512));
> + return -ENOMEM;
> + }
> +
> + cnt = DIV_ROUND_UP(fdt_header_len, 512);
> + debug("%s: MMC read PPA FIT header: dev # %u, block # %u, count %u\n",
> + __func__, dev, blk, cnt);
> + ret = mmc->block_dev.block_read(&mmc->block_dev, blk, cnt, fitp);
> + if (ret != cnt) {
> + free(fitp);
> + printf("MMC/SD read of PPA FIT header at offset 0x%x failed\n",
> + CONFIG_SYS_LS_PPA_FW_ADDR);
> + return -EIO;
> + }
> +
> + /* flush cache after read */
> + flush_cache((ulong)fitp, cnt * 512);
> +
> + fw_length = fdt_totalsize(fitp);
> + free(fitp);
> +
> + fw_length = roundup(fw_length, 512);
> + ppa_fit_addr = malloc(fw_length);
> + if (!ppa_fit_addr) {
> + printf("PPA: malloc failed for PPA image(size 0x%zx)\n",
> + fw_length);
> + return -ENOMEM;
> + }
> +
> + cnt = DIV_ROUND_UP(fw_length, 512);
> + debug("%s: MMC read PPA FIT image: dev # %u, block # %u, count %u\n",
> + __func__, dev, blk, cnt);
> + ret = mmc->block_dev.block_read(&mmc->block_dev,
> + blk, cnt, ppa_fit_addr);
> + if (ret != cnt) {
> + free(ppa_fit_addr);
> + printf("MMC/SD read of PPA FIT header at offset 0x%x failed\n",
> + CONFIG_SYS_LS_PPA_FW_ADDR);
> + return -EIO;
> + }
> +
> + flush_cache((ulong)ppa_fit_addr, cnt * 512);
> +
> +#elif CONFIG_SYS_LS_PPA_FW_IN_NAND
> + struct fdt_header fit;
> +
> + debug("%s: PPA image load from NAND\n", __func__);
> +
> + nand_init();
> + ret = nand_read(nand_info[0], (loff_t)CONFIG_SYS_LS_PPA_FW_ADDR,
> + &fdt_header_len, (u_char *)&fit);
> + if (ret == -EUCLEAN) {
> + printf("NAND read of PPA FIT header at offset 0x%x failed\n",
> + CONFIG_SYS_LS_PPA_FW_ADDR);
> + return -EIO;
> + }
> +
> + fw_length = fdt_totalsize(&fit);
> +
> + ppa_fit_addr = malloc(fw_length);
> + if (!ppa_fit_addr) {
> + printf("PPA: malloc failed for PPA image(size 0x%zx)\n",
> + fw_length);
> + return -ENOMEM;
> + }
> +
> + ret = nand_read(nand_info[0], (loff_t)CONFIG_SYS_LS_PPA_FW_ADDR,
> + &fw_length, (u_char *)ppa_fit_addr);
> + if (ret == -EUCLEAN) {
> + free(ppa_fit_addr);
> + printf("NAND read of PPA firmware at offset 0x%x failed\n",
> + CONFIG_SYS_LS_PPA_FW_ADDR);
> + return -EIO;
> + }
> #else
> #error "No CONFIG_SYS_LS_PPA_FW_IN_xxx defined"
> #endif
>
Why do you flush the cache after reading from SD but not from NAND?
York
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