X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=arch%2Fpowerpc%2Fplatforms%2F83xx%2Fmpc832x_rdb.c;h=24a790c79ec085a04e7afe36795babad592420d7;hb=8237bf080e9ef6adc3f2adce26060722685bbb15;hp=e6c1760f36ef675e62d5c8eba8b55d7cb39e5b03;hpb=26f6cb999366a71b8e318bceaf8fafc1ffecae40;p=linux-2.6

diff --git a/arch/powerpc/platforms/83xx/mpc832x_rdb.c b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
index e6c1760f36..24a790c79e 100644
--- a/arch/powerpc/platforms/83xx/mpc832x_rdb.c
+++ b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
@@ -15,6 +15,7 @@
  */
 
 #include <linux/pci.h>
+#include <linux/spi/spi.h>
 
 #include <asm/of_platform.h>
 #include <asm/time.h>
@@ -22,6 +23,7 @@
 #include <asm/udbg.h>
 #include <asm/qe.h>
 #include <asm/qe_ic.h>
+#include <sysdev/fsl_soc.h>
 
 #include "mpc83xx.h"
 
@@ -32,6 +34,50 @@
 #define DBG(fmt...)
 #endif
 
+static void mpc83xx_spi_activate_cs(u8 cs, u8 polarity)
+{
+	pr_debug("%s %d %d\n", __func__, cs, polarity);
+	par_io_data_set(3, 13, polarity);
+}
+
+static void mpc83xx_spi_deactivate_cs(u8 cs, u8 polarity)
+{
+	pr_debug("%s %d %d\n", __func__, cs, polarity);
+	par_io_data_set(3, 13, !polarity);
+}
+
+static struct spi_board_info mpc832x_spi_boardinfo = {
+	.bus_num = 0x4c0,
+	.chip_select = 0,
+	.max_speed_hz = 50000000,
+	/*
+	 * XXX: This is spidev (spi in userspace) stub, should
+	 * be replaced by "mmc_spi" when mmc_spi will hit mainline.
+	 */
+	.modalias = "spidev",
+};
+
+static int __init mpc832x_spi_init(void)
+{
+	if (!machine_is(mpc832x_rdb))
+		return 0;
+
+	par_io_config_pin(3,  0, 3, 0, 1, 0); /* SPI1 MOSI, I/O */
+	par_io_config_pin(3,  1, 3, 0, 1, 0); /* SPI1 MISO, I/O */
+	par_io_config_pin(3,  2, 3, 0, 1, 0); /* SPI1 CLK,  I/O */
+	par_io_config_pin(3,  3, 2, 0, 1, 0); /* SPI1 SEL,  I   */
+
+	par_io_config_pin(3, 13, 1, 0, 0, 0); /* !SD_CS,    O */
+	par_io_config_pin(3, 14, 2, 0, 0, 0); /* SD_INSERT, I */
+	par_io_config_pin(3, 15, 2, 0, 0, 0); /* SD_PROTECT,I */
+
+	return fsl_spi_init(&mpc832x_spi_boardinfo, 1,
+			    mpc83xx_spi_activate_cs,
+			    mpc83xx_spi_deactivate_cs);
+}
+
+device_initcall(mpc832x_spi_init);
+
 /* ************************************************************************
  *
  * Setup the architecture