avr32: Reduce DataFlash bus speed to 8 MHz on ATNGW100
Doing this in combination with "atmel_spi: fix hang due to missed
interrupt" appears to eliminate the overruns I'm seeing when using
JFFS2-on-DataFlash as /usr filesystem on the ATNGW100.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
diff --git a/arch/avr32/boards/atngw100/setup.c b/arch/avr32/boards/atngw100/setup.c
index 670c87b..b8286f1 100644
--- a/arch/avr32/boards/atngw100/setup.c
+++ b/arch/avr32/boards/atngw100/setup.c
@@ -47,7 +47,7 @@
static struct spi_board_info spi0_board_info[] __initdata = {
{
.modalias = "mtd_dataflash",
- .max_speed_hz = 10000000,
+ .max_speed_hz = 8000000,
.chip_select = 0,
},
};
