sh: add spi header and r2d platform data V3

This patch adds the header file asm/spi.h and board specific code for the
r2d board. The header file contains a structure that should be used to
point out a single spi bus. The board specific code for r2d is updated with
such a structure for the new spi_sh_sci driver. The structure contains a
chip select callback plus information about the R9701 rtc chip which is
attached to the spi bus.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 13 insertions, 0 deletions

diff --git a/include/asm-sh/spi.h b/include/asm-sh/spi.h
new file mode 100644
index 00000000000..e96f5b0953c
--- /dev/null
+++ b/include/asm-sh/spi.h
@@ -0,0 +1,13 @@
+#ifndef __ASM_SPI_H__
+#define __ASM_SPI_H__
+
+struct sh_spi_info;
+
+struct sh_spi_info {
+        int                      bus_num;
+        int                      num_chipselect;
+
+        void (*chip_select)(struct sh_spi_info *spi, int cs, int state);
+};
+
+#endif /* __ASM_SPI_H__ */