firmware: Remove probe which is causing extra bind

[oweals/u-boot.git] / drivers / dfu / dfu_sf.c

diff --git a/drivers/dfu/dfu_sf.c b/drivers/dfu/dfu_sf.c
index 2d2586db52ad0a9c9ca56d33b115c5b6ff37f9f6..0fdbfae43410b28d00775877ef6575b21981cb5d 100644 (file)
--- a/drivers/dfu/dfu_sf.c
+++ b/drivers/dfu/dfu_sf.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
- *
- * SPDX-License-Identifier: GPL-2.0+
  */
 
 #include <common.h>
@@ -11,6 +10,8 @@
 #include <dfu.h>
 #include <spi.h>
 #include <spi_flash.h>
+#include <jffs2/load_kernel.h>
+#include <linux/mtd/mtd.h>
 
 static int dfu_get_medium_size_sf(struct dfu_entity *dfu, u64 *size)
 {
@@ -20,7 +21,7 @@ static int dfu_get_medium_size_sf(struct dfu_entity *dfu, u64 *size)
 }
 
 static int dfu_read_medium_sf(struct dfu_entity *dfu, u64 offset, void *buf,
-               long *len)
+                             long *len)
 {
        return spi_flash_read(dfu->data.sf.dev, dfu->data.sf.start + offset,
                *len, buf);
@@ -33,7 +34,7 @@ static u64 find_sector(struct dfu_entity *dfu, u64 start, u64 offset)
 }
 
 static int dfu_write_medium_sf(struct dfu_entity *dfu,
-               u64 offset, void *buf, long *len)
+                              u64 offset, void *buf, long *len)
 {
        int ret;
 
@@ -53,11 +54,33 @@ static int dfu_write_medium_sf(struct dfu_entity *dfu,
 
 static int dfu_flush_medium_sf(struct dfu_entity *dfu)
 {
+       u64 off, length;
+
+       if (!CONFIG_IS_ENABLED(DFU_SF_PART) || !dfu->data.sf.ubi)
+               return 0;
+
+       /* in case of ubi partition, erase rest of the partition */
+       off = find_sector(dfu, dfu->data.sf.start, dfu->offset);
+       /* last write ended with unaligned length jump to next */
+       if (off != dfu->data.sf.start + dfu->offset)
+               off += dfu->data.sf.dev->sector_size;
+       length = dfu->data.sf.start + dfu->data.sf.size - off;
+       if (length)
+               return spi_flash_erase(dfu->data.sf.dev, off, length);
+
        return 0;
 }
 
 static unsigned int dfu_polltimeout_sf(struct dfu_entity *dfu)
 {
+       /*
+        * Currently, Poll Timeout != 0 is only needed on nand
+        * ubi partition, as sectors which are not used need
+        * to be erased
+        */
+       if (CONFIG_IS_ENABLED(DFU_SF_PART) && dfu->data.sf.ubi)
+               return DFU_MANIFEST_POLL_TIMEOUT;
+
        return DFU_DEFAULT_POLL_TIMEOUT;
 }
 
@@ -134,6 +157,34 @@ int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr, char *s)
                dfu->data.sf.start = simple_strtoul(s, &s, 16);
                s++;
                dfu->data.sf.size = simple_strtoul(s, &s, 16);
+       } else if (CONFIG_IS_ENABLED(DFU_SF_PART) &&
+                  (!strcmp(st, "part") || !strcmp(st, "partubi"))) {
+               char mtd_id[32];
+               struct mtd_device *mtd_dev;
+               u8 part_num;
+               struct part_info *pi;
+               int ret, dev, part;
+
+               dfu->layout = DFU_RAW_ADDR;
+
+               dev = simple_strtoul(s, &s, 10);
+               s++;
+               part = simple_strtoul(s, &s, 10);
+
+               sprintf(mtd_id, "%s%d,%d", "nor", dev, part - 1);
+               printf("using id '%s'\n", mtd_id);
+
+               mtdparts_init();
+
+               ret = find_dev_and_part(mtd_id, &mtd_dev, &part_num, &pi);
+               if (ret != 0) {
+                       printf("Could not locate '%s'\n", mtd_id);
+                       return -1;
+               }
+               dfu->data.sf.start = pi->offset;
+               dfu->data.sf.size = pi->size;
+               if (!strcmp(st, "partubi"))
+                       dfu->data.sf.ubi = 1;
        } else {
                printf("%s: Memory layout (%s) not supported!\n", __func__, st);
                spi_flash_free(dfu->data.sf.dev);