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authorMinkyu Kang <mk7.kang@samsung.com>2010-04-19 10:26:18 +0900
committerMinkyu Kang <mk7.kang@samsung.com>2010-04-19 10:26:18 +0900
commit83653121d7382fccfe329cb732f77f116341ef1d (patch)
tree0b1ce6764252af15dfb2614372de98a44a7ec61f /drivers/mtd/spi/eeprom_m95xxx.c
parent0f1f21a345e02a68ec16f7ab9e7dc687f9276089 (diff)
parent07739bcef5da07cc4a4edef8b91014ccc332eda3 (diff)
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Merge branch 'master' of git://git.denx.de/u-boot-arm
Conflicts: cpu/arm1176/cpu.c cpu/arm1176/start.S cpu/arm_cortexa8/s5pc1xx/Makefile cpu/arm_cortexa8/s5pc1xx/clock.c drivers/serial/serial_s5p.c include/asm-arm/arch-s5pc1xx/clk.h include/asm-arm/arch-s5pc1xx/gpio.h include/asm-arm/arch-s5pc1xx/uart.h Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Diffstat (limited to 'drivers/mtd/spi/eeprom_m95xxx.c')
-rw-r--r--drivers/mtd/spi/eeprom_m95xxx.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/mtd/spi/eeprom_m95xxx.c b/drivers/mtd/spi/eeprom_m95xxx.c
index 0148d00..632db4e 100644
--- a/drivers/mtd/spi/eeprom_m95xxx.c
+++ b/drivers/mtd/spi/eeprom_m95xxx.c
@@ -44,6 +44,9 @@ ssize_t spi_read (uchar *addr, int alen, uchar *buffer, int len)
slave = spi_setup_slave(CONFIG_DEFAULT_SPI_BUS, 1, 1000000,
CONFIG_DEFAULT_SPI_MODE);
+ if(!slave)
+ return 0;
+
spi_claim_bus(slave);
/* command */
@@ -75,6 +78,9 @@ ssize_t spi_write (uchar *addr, int alen, uchar *buffer, int len)
slave = spi_setup_slave(CONFIG_DEFAULT_SPI_BUS, 1, 1000000,
CONFIG_DEFAULT_SPI_MODE);
+ if (!slave)
+ return 0;
+
spi_claim_bus(slave);
buf[0] = SPI_EEPROM_WREN;