[U-Boot] [RFC PATCH 2/2] sandbox: Read contents of SPI flash from file

[Simon Glass]

TODO: Rename to sandbox_flash
TODO: Discuss the CONFIG_NO_SPI option

Signed-off-by: Simon Glass <sjg at chromium.org>
---
 drivers/mtd/spi/test_flash.c |   19 +++++++++++++++++++
 include/spi_flash.h          |    2 ++
 2 files changed, 21 insertions(+), 0 deletions(-)

diff --git a/drivers/mtd/spi/test_flash.c b/drivers/mtd/spi/test_flash.c
index e0027ee..38d2731 100644
--- a/drivers/mtd/spi/test_flash.c
+++ b/drivers/mtd/spi/test_flash.c
@@ -22,6 +22,7 @@
 #include <common.h>
 #include <malloc.h>
 #include <spi_flash.h>
+#include <os.h>
 
 struct test_flash_info {
 	unsigned page_size;	/* Page size of the test flash */
@@ -86,3 +87,21 @@ struct test_flash_info *spi_flash_test_setup(unsigned page_size, ulong size)
 	info->buf = malloc(size);
 	return info;
 }
+
+int spi_flash_test_loadfile(struct test_flash_info *info, const char *filename)
+{
+	int fd, len;
+
+	fd = os_open(filename, 0);
+	if (fd < 0) {
+		printf("Cannot open file '%s'\n", filename);
+		return -1;
+	}
+	len = os_read(fd, info->buf, info->size);
+	if (len != info->size) {
+		printf("Read %d bytes, expected %ld\n", len, info->size);
+		return -1;
+	}
+	os_close(fd);
+	return 0;
+}
diff --git a/include/spi_flash.h b/include/spi_flash.h
index 5611222..357de30 100644
--- a/include/spi_flash.h
+++ b/include/spi_flash.h
@@ -74,4 +74,6 @@ static inline int spi_flash_erase(struct spi_flash *flash, u32 offset,
 struct test_flash_info;
 struct spi_flash *spi_flash_probe_test(struct test_flash_info *info);
 struct test_flash_info *spi_flash_test_setup(unsigned page_size, ulong size);
+int spi_flash_test_loadfile(struct test_flash_info *info,
+			    const char *filename);
 #endif /* _SPI_FLASH_H_ */
-- 
1.7.3.1