nds32: spi: Support spi dm driver.
Support spi driver and can detect MX25U1635E flash on AE3XX board.
Verification:
sf probe 0:0 50000000 0
spi_flash_std_probe(sf_Probr.c)
spi_flash_probe_slave(sf_Probr.c)
SF: Detected mx25u1635e with page size 256 Bytes, erase size 4 KiB, total 2 MiB
NDS32 # sf test 0x100000 0x1000
SPI flash test:
0 erase: 34 ticks, 117 KiB/s 0.936 Mbps
1 check: 15 ticks, 266 KiB/s 2.128 Mbps
2 write: 21 ticks, 190 KiB/s 1.520 Mbps
3 read: 11 ticks, 363 KiB/s 2.904 Mbps
Test passed
0 erase: 34 ticks, 117 KiB/s 0.936 Mbps
1 check: 15 ticks, 266 KiB/s 2.128 Mbps
2 write: 21 ticks, 190 KiB/s 1.520 Mbps
3 read: 11 ticks, 363 KiB/s 2.904 Mbps
Signed-off-by: rick <rick@andestech.com>
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile
index 9f8b86d..cd7c755 100644
--- a/drivers/spi/Makefile
+++ b/drivers/spi/Makefile
@@ -35,6 +35,7 @@
obj-$(CONFIG_MVEBU_A3700_SPI) += mvebu_a3700_spi.o
obj-$(CONFIG_MXC_SPI) += mxc_spi.o
obj-$(CONFIG_MXS_SPI) += mxs_spi.o
+obj-$(CONFIG_NDS_AE3XX_SPI) += nds_ae3xx_spi.o
obj-$(CONFIG_OMAP3_SPI) += omap3_spi.o
obj-$(CONFIG_PIC32_SPI) += pic32_spi.o
obj-$(CONFIG_ROCKCHIP_SPI) += rk_spi.o