ARM: NUC900: Add spi driver support for nuc900

PATCH Superseded Wan ZongShun 1 participant 1 message Dec 1, 2009

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Arm (32-bit) Arm sub-architectures SPI

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Wan ZongShun

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2009-12-01 14:29 UTC #0 lore raw

PATCH v3 1/1 ARM: NUC900: Add spi driver support for nuc900

Dear Andrew,

I have fixed this spi patch and named it v3.

Thanks a lot for your help.

Signed-off-by Wan ZongShun <[email protected]>

---
 arch/arm/mach-w90x900/include/mach/nuc900_spi.h |   35 ++
 drivers/spi/Kconfig                             |    7 +
 drivers/spi/Makefile                            |    1 +
 drivers/spi/spi_nuc900.c                        |  504 +++++++++++++++++++++++
 4 files changed, 547 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/mach-w90x900/include/mach/nuc900_spi.h
 create mode 100644 drivers/spi/spi_nuc900.c

arch/arm/mach-w90x900/include/mach/nuc900_spi.h new file +35 -0

new file mode 100644
index 0000000..bd94819
@@ -0,0 +1,35 @@
+/*
+ * arch/arm/mach-w90x900/include/mach/nuc900_spi.h
+ *
+ * Copyright (c) 2009 Nuvoton technology corporation.
+ *
+ * Wan ZongShun <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation;version 2 of the License.
+ *
+ */
+
+#ifndef __ASM_ARCH_SPI_H
+#define __ASM_ARCH_SPI_H
+
+extern void mfp_set_groupg(struct device *dev);
+
+struct nuc900_spi_info {
+	unsigned int num_cs;
+	unsigned int lsb;
+	unsigned int txneg;
+	unsigned int rxneg;
+	unsigned int divider;
+	unsigned int sleep;
+	unsigned int txnum;
+	unsigned int txbitlen;
+	int bus_num;
+};
+
+struct nuc900_spi_chip {
+	unsigned char bits_per_word;
+};
+
+#endif /* __ASM_ARCH_SPI_H */

drivers/spi/Kconfig +7 -0

index 4b6f7cb..2e1b20c 100644
@@ -244,6 +244,13 @@ config SPI_XILINX
 	  See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
 	  Product Specification document (DS464) for hardware details.
 
+config SPI_NUC900
+	tristate "Nuvoton NUC900 series SPI"
+	depends on ARCH_W90X900 && EXPERIMENTAL
+	select SPI_BITBANG
+	help
+	  SPI driver for Nuvoton NUC900 series ARM SoCs
+
 #
 # Add new SPI master controllers in alphabetical order above this line
 #

drivers/spi/Makefile +1 -0

index 21a1182..694a4cb 100644
@@ -33,6 +33,7 @@ obj-$(CONFIG_SPI_TXX9)			+= spi_txx9.o
 obj-$(CONFIG_SPI_XILINX)		+= xilinx_spi.o
 obj-$(CONFIG_SPI_SH_SCI)		+= spi_sh_sci.o
 obj-$(CONFIG_SPI_STMP3XXX)		+= spi_stmp.o
+obj-$(CONFIG_SPI_NUC900)		+= spi_nuc900.o
 # 	... add above this line ...
 
 # SPI protocol drivers (device/link on bus)

drivers/spi/spi_nuc900.c new file +504 -0

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