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env: sf: fix environment in SPI NOR

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commit 9a9d66f5ef ("env: add spi_flash_read_env function")

breaks Environment functionality, as it reads only
until 2 \0 are found, but fills the buffer with 0x0
instead 0xff which leads in an incorrect crc sum.

Fix: init the read buffer with 0xff instead 0x00

Signed-off-by: Heiko Schocher <hs@denx.de>
This commit is contained in:
Heiko Schocher 2019-01-18 10:45:56 +01:00 committed by Tom Rini
parent 2c3ec20fcc
commit 3d5931e598
1 changed files with 1 additions and 1 deletions
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2
env/sf.c vendored
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@ -98,7 +98,7 @@ static int spi_flash_read_env(struct spi_flash *flash, u32 offset, size_t len,
u32 addr = 0;
u32 page_size = flash->page_size;
memset(buf, 0x0, len);
memset(buf, 0xff, len);
for (int i = 0; i < len / page_size; ++i) {
int ret = spi_flash_read(flash, offset, page_size,
&((char *)buf)[addr]);