From: Nguyen Viet Dung <nv-dung@xxxxxxxxxxx>
This patch add setup for I2C bus.
Signed-off-by: Nguyen Viet Dung <nv-dung@xxxxxxxxxxx>
---
arch/arm/mach-shmobile/include/mach/r8a7790.h | 3 +++
arch/arm/mach-shmobile/setup-r8a7790.c | 28 +++++++++++++++++++++++++
2 files changed, 31 insertions(+)
diff --git a/arch/arm/mach-shmobile/include/mach/r8a7790.h b/arch/arm/mach-shmobile/include/mach/r8a7790.h
index 2e919e6..85d3567 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7790.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7790.h
@@ -1,7 +1,10 @@
#ifndef __ASM_R8A7790_H__
#define __ASM_R8A7790_H__
+#include <linux/i2c/i2c-rcar.h>
+
void r8a7790_add_standard_devices(void);
+void r8a7790_add_i2c_device(int idx, struct i2c_rcar_platform_data *pdata);
void r8a7790_clock_init(void);
void r8a7790_pinmux_init(void);
void r8a7790_timer_init(void);
diff --git a/arch/arm/mach-shmobile/setup-r8a7790.c b/arch/arm/mach-shmobile/setup-r8a7790.c
index ed7ee24..0ab912b 100644
--- a/arch/arm/mach-shmobile/setup-r8a7790.c
+++ b/arch/arm/mach-shmobile/setup-r8a7790.c
@@ -24,6 +24,7 @@
#include <linux/serial_sci.h>
#include <linux/platform_data/gpio-rcar.h>
#include <linux/platform_data/irq-renesas-irqc.h>
+#include <linux/i2c/i2c-rcar.h>
#include <mach/common.h>
#include <mach/irqs.h>
#include <mach/r8a7790.h>
@@ -137,6 +138,33 @@ static struct resource irqc0_resources[] = {
&irqc##idx##_data, \
sizeof(struct renesas_irqc_config))
+/* I2C */
+static struct resource rcar_i2c_res[] __initdata = {
+ /* I2C0 */
+ DEFINE_RES_MEM(0xe6508000, 0x10000),
+ DEFINE_RES_IRQ(gic_spi(287)),
+ /* I2C1 */
+ DEFINE_RES_MEM(0xe6518000, 0x10000),
+ DEFINE_RES_IRQ(gic_spi(288)),
+ /* I2C2 */
+ DEFINE_RES_MEM(0xe6530000, 0x10000),
+ DEFINE_RES_IRQ(gic_spi(286)),
+ /* I2C3 */
+ DEFINE_RES_MEM(0xe6540000, 0x10000),
+ DEFINE_RES_IRQ(gic_spi(290)),
+};
+
+void __init r8a7790_add_i2c_device(int idx,
+ struct i2c_rcar_platform_data *pdata)
+{
+ BUG_ON(idx < 0 || idx > 3);
+
+ platform_device_register_resndata(
+ &platform_bus, "i2c-rcar", idx,
+ rcar_i2c_res + (2*idx), 2,
+ pdata, sizeof(*pdata));
+}
+
void __init r8a7790_add_standard_devices(void)
{
r8a7790_register_scif(SCIFA0);
--
1.7.9.5
--
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