On Thu, 2018-12-13 at 23:32 +0800, tien.fong.c...@intel.com wrote:
> From: Tien Fong Chee <tien.fong.c...@intel.com>
>
> Firmware loader would encounter problem if the MMC is accessed before
> initializing it. This patch would adding the support of initializing
> MMC before the MMC is accessed by firmware loader.
>
> Signed-off-by: Tien Fong Chee <tien.fong.c...@intel.com>
> ---
> drivers/misc/fs_loader.c | 33 ++++++++++++++++++++++++++++++++-
> 1 files changed, 32 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/misc/fs_loader.c b/drivers/misc/fs_loader.c
> index 57a14a3..675f625 100644
> --- a/drivers/misc/fs_loader.c
> +++ b/drivers/misc/fs_loader.c
> @@ -12,6 +12,7 @@
> #include <linux/string.h>
> #include <mapmem.h>
> #include <malloc.h>
> +#include <mmc.h>
> #include <spl.h>
>
> DECLARE_GLOBAL_DATA_PTR;
> @@ -221,6 +222,7 @@ static int fs_loader_ofdata_to_platdata(struct
> udevice *dev)
> {
> const char *fs_loader_path;
> u32 phandlepart[2];
> + struct device_platdata *plat = NULL;
>
> fs_loader_path = ofnode_get_chosen_prop("firmware-loader");
>
> @@ -229,7 +231,6 @@ static int fs_loader_ofdata_to_platdata(struct
> udevice *dev)
>
> fs_loader_node = ofnode_path(fs_loader_path);
> if (ofnode_valid(fs_loader_node)) {
> - struct device_platdata *plat;
> plat = dev->platdata;
>
> if (!ofnode_read_u32_array(fs_loader_node,
> @@ -247,6 +248,36 @@ static int fs_loader_ofdata_to_platdata(struct
> udevice *dev)
> }
> }
>
I just realized this portion of codes should be moved to polling
function. I will send out another patch tomorrow.
> +#ifdef CONFIG_MMC
> + int ret;
> +
> + ret = mmc_initialize(NULL);
> + if (ret) {
> + debug("MMC: could not initialize mmc. error: %d\n",
> ret);
> +
> + return ret;
> + }
> +
> + if (plat->phandlepart.phandle) {
> + ofnode node = ofnode_get_by_phandle(plat-
> >phandlepart.phandle);
> +
> + struct udevice *mmc_dev = NULL;
> +
> + ret = device_get_global_by_ofnode(node, &mmc_dev);
> + if (!ret) {
> + struct mmc *mmc = mmc_get_mmc_dev(mmc_dev);
> +
> + ret = mmc_init(mmc);
> + if (ret) {
> + debug("MMC: mmc init failed with
> error: %d\n",
> + ret);
> +
> + return ret;
> + }
> + }
> + }
> +#endif
> +
> return 0;
> }
>
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