[ARM] mv78xx0: wire i2c support
All the pieces were ready, just matter of assembling
them together.
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
diff --git a/arch/arm/mach-mv78xx0/common.c b/arch/arm/mach-mv78xx0/common.c
index 15f9913..a575daa 100644
--- a/arch/arm/mach-mv78xx0/common.c
+++ b/arch/arm/mach-mv78xx0/common.c
@@ -14,6 +14,7 @@
#include <linux/serial_8250.h>
#include <linux/mbus.h>
#include <linux/mv643xx_eth.h>
+#include <linux/mv643xx_i2c.h>
#include <linux/ata_platform.h>
#include <linux/ethtool.h>
#include <asm/mach/map.h>
@@ -518,6 +519,81 @@
platform_device_register(&mv78xx0_ge11);
}
+/*****************************************************************************
+ * I2C bus 0
+ ****************************************************************************/
+
+static struct mv64xxx_i2c_pdata mv78xx0_i2c_0_pdata = {
+ .freq_m = 8, /* assumes 166 MHz TCLK */
+ .freq_n = 3,
+ .timeout = 1000, /* Default timeout of 1 second */
+};
+
+static struct resource mv78xx0_i2c_0_resources[] = {
+ {
+ .name = "i2c 0 base",
+ .start = I2C_0_PHYS_BASE,
+ .end = I2C_0_PHYS_BASE + 0x1f,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .name = "i2c 0 irq",
+ .start = IRQ_MV78XX0_I2C_0,
+ .end = IRQ_MV78XX0_I2C_0,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+
+static struct platform_device mv78xx0_i2c_0 = {
+ .name = MV64XXX_I2C_CTLR_NAME,
+ .id = 0,
+ .num_resources = ARRAY_SIZE(mv78xx0_i2c_0_resources),
+ .resource = mv78xx0_i2c_0_resources,
+ .dev = {
+ .platform_data = &mv78xx0_i2c_0_pdata,
+ },
+};
+
+/*****************************************************************************
+ * I2C bus 1
+ ****************************************************************************/
+
+static struct mv64xxx_i2c_pdata mv78xx0_i2c_1_pdata = {
+ .freq_m = 8, /* assumes 166 MHz TCLK */
+ .freq_n = 3,
+ .timeout = 1000, /* Default timeout of 1 second */
+};
+
+static struct resource mv78xx0_i2c_1_resources[] = {
+ {
+ .name = "i2c 1 base",
+ .start = I2C_1_PHYS_BASE,
+ .end = I2C_1_PHYS_BASE + 0x1f,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .name = "i2c 1 irq",
+ .start = IRQ_MV78XX0_I2C_1,
+ .end = IRQ_MV78XX0_I2C_1,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+
+static struct platform_device mv78xx0_i2c_1 = {
+ .name = MV64XXX_I2C_CTLR_NAME,
+ .id = 1,
+ .num_resources = ARRAY_SIZE(mv78xx0_i2c_1_resources),
+ .resource = mv78xx0_i2c_1_resources,
+ .dev = {
+ .platform_data = &mv78xx0_i2c_1_pdata,
+ },
+};
+
+void __init mv78xx0_i2c_init(void)
+{
+ platform_device_register(&mv78xx0_i2c_0);
+ platform_device_register(&mv78xx0_i2c_1);
+}
/*****************************************************************************
* SATA
diff --git a/arch/arm/mach-mv78xx0/common.h b/arch/arm/mach-mv78xx0/common.h
index f6274db..befc224 100644
--- a/arch/arm/mach-mv78xx0/common.h
+++ b/arch/arm/mach-mv78xx0/common.h
@@ -44,6 +44,7 @@
void mv78xx0_uart1_init(void);
void mv78xx0_uart2_init(void);
void mv78xx0_uart3_init(void);
+void mv78xx0_i2c_init(void);
extern struct sys_timer mv78xx0_timer;
diff --git a/arch/arm/mach-mv78xx0/db78x00-bp-setup.c b/arch/arm/mach-mv78xx0/db78x00-bp-setup.c
index be0a59a..efdabe0 100644
--- a/arch/arm/mach-mv78xx0/db78x00-bp-setup.c
+++ b/arch/arm/mach-mv78xx0/db78x00-bp-setup.c
@@ -14,6 +14,7 @@
#include <linux/ata_platform.h>
#include <linux/mv643xx_eth.h>
#include <linux/ethtool.h>
+#include <linux/i2c.h>
#include <mach/mv78xx0.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -39,6 +40,11 @@
.n_ports = 2,
};
+static struct i2c_board_info __initdata db78x00_i2c_rtc = {
+ I2C_BOARD_INFO("ds1338", 0x68),
+};
+
+
static void __init db78x00_init(void)
{
/*
@@ -60,6 +66,8 @@
mv78xx0_sata_init(&db78x00_sata_data);
mv78xx0_uart0_init();
mv78xx0_uart2_init();
+ mv78xx0_i2c_init();
+ i2c_register_board_info(0, &db78x00_i2c_rtc, 1);
} else {
mv78xx0_uart1_init();
mv78xx0_uart3_init();
diff --git a/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h b/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h
index 328a02e..582cffc 100644
--- a/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h
+++ b/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h
@@ -102,6 +102,8 @@
#define DEV_BUS_VIRT_BASE (MV78XX0_REGS_VIRT_BASE | 0x10000)
#define SAMPLE_AT_RESET_LOW (DEV_BUS_VIRT_BASE | 0x0030)
#define SAMPLE_AT_RESET_HIGH (DEV_BUS_VIRT_BASE | 0x0034)
+#define I2C_0_PHYS_BASE (DEV_BUS_PHYS_BASE | 0x1000)
+#define I2C_1_PHYS_BASE (DEV_BUS_PHYS_BASE | 0x1100)
#define UART0_PHYS_BASE (DEV_BUS_PHYS_BASE | 0x2000)
#define UART0_VIRT_BASE (DEV_BUS_VIRT_BASE | 0x2000)
#define UART1_PHYS_BASE (DEV_BUS_PHYS_BASE | 0x2100)