omap1: Add 7xx clocks and pin muxes for SPI

Commit 35c9049b27040d09461bc90928ad770be7ddf661 added
drivers/spi/omap_spi_100k.c.

This patch add the related clocks and pin muxing
entries to make the driver work on omap7xx platforms.

Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

5 files changed, 58 insertions, 0 deletions

diff --git a/arch/arm/mach-omap1/clock_data.c b/arch/arm/mach-omap1/clock_data.c
index ab995a9c606c..6887bf308aac 100644
--- a/arch/arm/mach-omap1/clock_data.c
+++ b/arch/arm/mach-omap1/clock_data.c
@@ -658,6 +658,10 @@ static struct omap_clk omap_clks[] = {
         CLK("i2c_omap.1", "fck",        &i2c_fck,       CK_16XX | CK_1510 | CK_310 | CK_7XX),
         CLK("i2c_omap.1", "ick",        &i2c_ick,       CK_16XX),
         CLK("i2c_omap.1", "ick",        &dummy_ck,      CK_1510 | CK_310 | CK_7XX),
+        CLK("omap1_spi100k.1", "fck",   &dummy_ck,      CK_7XX),
+        CLK("omap1_spi100k.1", "ick",   &dummy_ck,      CK_7XX),
+        CLK("omap1_spi100k.2", "fck",   &dummy_ck,      CK_7XX),
+        CLK("omap1_spi100k.2", "ick",   &dummy_ck,      CK_7XX),
         CLK("omap_uwire", "fck",        &armxor_ck.clk, CK_16XX | CK_1510 | CK_310),
         CLK("omap-mcbsp.1", "ick",      &dspper_ck,     CK_16XX),
         CLK("omap-mcbsp.1", "ick",      &dummy_ck,      CK_1510 | CK_310),
diff --git a/arch/arm/mach-omap1/devices.c b/arch/arm/mach-omap1/devices.c
index 23ded2d49600..a2d07aa75c9e 100644
--- a/arch/arm/mach-omap1/devices.c
+++ b/arch/arm/mach-omap1/devices.c
@@ -14,6 +14,7 @@
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
+#include <linux/spi/spi.h>
 
 #include <mach/hardware.h>
 #include <asm/mach/map.h>
@@ -23,6 +24,7 @@
 #include <plat/mux.h>
 #include <mach/gpio.h>
 #include <plat/mmc.h>
+#include <plat/omap7xx.h>
 
 /*-------------------------------------------------------------------------*/
 
@@ -196,6 +198,38 @@ void __init omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
 
 /*-------------------------------------------------------------------------*/
 
+/* OMAP7xx SPI support */
+#if defined(CONFIG_SPI_OMAP_100K) || defined(CONFIG_SPI_OMAP_100K_MODULE)
+
+struct platform_device omap_spi1 = {
+        .name           = "omap1_spi100k",
+        .id             = 1,
+};
+
+struct platform_device omap_spi2 = {
+        .name           = "omap1_spi100k",
+        .id             = 2,
+};
+
+static void omap_init_spi100k(void)
+{
+        omap_spi1.dev.platform_data = ioremap(OMAP7XX_SPI1_BASE, 0x7ff);
+        if (omap_spi1.dev.platform_data)
+                platform_device_register(&omap_spi1);
+
+        omap_spi2.dev.platform_data = ioremap(OMAP7XX_SPI2_BASE, 0x7ff);
+        if (omap_spi2.dev.platform_data)
+                platform_device_register(&omap_spi2);
+}
+
+#else
+static inline void omap_init_spi100k(void)
+{
+}
+#endif
+
+/*-------------------------------------------------------------------------*/
+
 #if defined(CONFIG_OMAP_STI)
 
 #define OMAP1_STI_BASE          0xfffea000
@@ -263,6 +297,7 @@ static int __init omap1_init_devices(void)
 
         omap_init_mbox();
         omap_init_rtc();
+        omap_init_spi100k();
         omap_init_sti();
 
         return 0;
diff --git a/arch/arm/mach-omap1/mux.c b/arch/arm/mach-omap1/mux.c
index 07212cc621ae..84341377232d 100644
--- a/arch/arm/mach-omap1/mux.c
+++ b/arch/arm/mach-omap1/mux.c
@@ -62,6 +62,14 @@ MUX_CFG_7XX("MMC_7XX_DAT0",        2,   17,    0,   16,   1, 0)
 /* I2C interface */
 MUX_CFG_7XX("I2C_7XX_SCL",         5,    1,    0,    0,   1, 0)
 MUX_CFG_7XX("I2C_7XX_SDA",         5,    5,    0,    0,   1, 0)
+
+/* SPI pins */
+MUX_CFG_7XX("SPI_7XX_1",           6,    5,    4,    4,   1, 0)
+MUX_CFG_7XX("SPI_7XX_2",           6,    9,    4,    8,   1, 0)
+MUX_CFG_7XX("SPI_7XX_3",           6,   13,    4,   12,   1, 0)
+MUX_CFG_7XX("SPI_7XX_4",           6,   17,    4,   16,   1, 0)
+MUX_CFG_7XX("SPI_7XX_5",           8,   25,    0,   24,   0, 0)
+MUX_CFG_7XX("SPI_7XX_6",           9,    5,    0,    4,   0, 0)
 };
 #define OMAP7XX_PINS_SZ         ARRAY_SIZE(omap7xx_pins)
 #else
diff --git a/arch/arm/plat-omap/include/plat/mux.h b/arch/arm/plat-omap/include/plat/mux.h
index 8f069cc80350..692c90e89ac3 100644
--- a/arch/arm/plat-omap/include/plat/mux.h
+++ b/arch/arm/plat-omap/include/plat/mux.h
@@ -183,6 +183,14 @@ enum omap7xx_index {
         /* I2C */
         I2C_7XX_SCL,
         I2C_7XX_SDA,
+
+        /* SPI */
+        SPI_7XX_1,
+        SPI_7XX_2,
+        SPI_7XX_3,
+        SPI_7XX_4,
+        SPI_7XX_5,
+        SPI_7XX_6,
 };
 
 enum omap1xxx_index {
diff --git a/arch/arm/plat-omap/include/plat/omap7xx.h b/arch/arm/plat-omap/include/plat/omap7xx.h
index 53f52414b0e9..48e4757e1e30 100644
--- a/arch/arm/plat-omap/include/plat/omap7xx.h
+++ b/arch/arm/plat-omap/include/plat/omap7xx.h
@@ -46,6 +46,9 @@
 #define OMAP7XX_DSPREG_SIZE     SZ_128K
 #define OMAP7XX_DSPREG_START    0xE1000000
 
+#define OMAP7XX_SPI1_BASE       0xfffc0800
+#define OMAP7XX_SPI2_BASE       0xfffc1000
+
 /*
  * ----------------------------------------------------------------------------
  * OMAP7XX specific configuration registers