[PATCH v2 7/9] spl: Convert semihosting to spl_load

[Sean Anderson]

This converts the semihosting load method to use spl_load. As a result, it
also adds support for LOAD_FIT_FULL and IMX images.

Signed-off-by: Sean Anderson <sean.ander...@seco.com>
---

Changes in v2:
- New

 common/spl/spl_semihosting.c | 39 +++++++++++++++---------------------
 1 file changed, 16 insertions(+), 23 deletions(-)

diff --git a/common/spl/spl_semihosting.c b/common/spl/spl_semihosting.c
index df6aeb2951..35fbc2ee5e 100644
--- a/common/spl/spl_semihosting.c
+++ b/common/spl/spl_semihosting.c
@@ -9,16 +9,16 @@
 #include <semihosting.h>
 #include <spl.h>
 
-static int smh_read_full(long fd, void *memp, size_t len)
+static ulong spl_smh_fit_read(struct spl_load_info *load, ulong sector,
+                             ulong count, void *buf)
 {
-       long read;
+       int ret, fd = *(int *)load->priv;
 
-       read = smh_read(fd, memp, len);
-       if (read < 0)
-               return read;
-       if (read != len)
-               return -EIO;
-       return 0;
+       if (smh_seek(fd, sector))
+               return 0;
+
+       ret = smh_read(fd, buf, count);
+       return ret < 0 ? 0 : ret;
 }
 
 static int spl_smh_load_image(struct spl_image_info *spl_image,
@@ -29,12 +29,17 @@ static int spl_smh_load_image(struct spl_image_info 
*spl_image,
        long fd, len;
        struct image_header *header =
                spl_get_load_buffer(-sizeof(*header), sizeof(*header));
+       struct spl_load_info load = {
+               .bl_len = 1,
+               .read = spl_smh_fit_read,
+       };
 
        fd = smh_open(filename, MODE_READ | MODE_BINARY);
        if (fd < 0) {
                log_debug("could not open %s: %ld\n", filename, fd);
                return fd;
        }
+       load.priv = &fd;
 
        ret = smh_flen(fd);
        if (ret < 0) {
@@ -43,25 +48,13 @@ static int spl_smh_load_image(struct spl_image_info 
*spl_image,
        }
        len = ret;
 
-       ret = smh_read_full(fd, header, sizeof(struct image_header));
-       if (ret) {
+       ret = smh_read(fd, header, sizeof(struct image_header));
+       if (ret != sizeof(struct image_header)) {
                log_debug("could not read image header: %d\n", ret);
                goto out;
        }
 
-       ret = spl_parse_image_header(spl_image, bootdev, header);
-       if (ret) {
-               log_debug("failed to parse image header: %d\n", ret);
-               goto out;
-       }
-
-       ret = smh_seek(fd, 0);
-       if (ret) {
-               log_debug("could not seek to start of image: %d\n", ret);
-               goto out;
-       }
-
-       ret = smh_read_full(fd, (void *)spl_image->load_addr, len);
+       ret = spl_load(spl_image, bootdev, &load, header, len, 0);
        if (ret)
                log_debug("could not read %s: %d\n", filename, ret);
 out:
-- 
2.35.1.1320.gc452695387.dirty