[ARM] Kirkwood: Hook up I2C
Hook up I2C on Marvell Kirkwood. Tested on a QNAP TS-219 which has
RTC connected through I2C.
Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
index 9f01255..19b03f6 100644
--- a/arch/arm/mach-kirkwood/common.c
+++ b/arch/arm/mach-kirkwood/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/spi/orion_spi.h>
#include <net/dsa.h>
@@ -371,6 +372,45 @@
/*****************************************************************************
+ * I2C
+ ****************************************************************************/
+static struct mv64xxx_i2c_pdata kirkwood_i2c_pdata = {
+ .freq_m = 8, /* assumes 166 MHz TCLK */
+ .freq_n = 3,
+ .timeout = 1000, /* Default timeout of 1 second */
+};
+
+static struct resource kirkwood_i2c_resources[] = {
+ {
+ .name = "i2c",
+ .start = I2C_PHYS_BASE,
+ .end = I2C_PHYS_BASE + 0x1f,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .name = "i2c",
+ .start = IRQ_KIRKWOOD_TWSI,
+ .end = IRQ_KIRKWOOD_TWSI,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device kirkwood_i2c = {
+ .name = MV64XXX_I2C_CTLR_NAME,
+ .id = 0,
+ .num_resources = ARRAY_SIZE(kirkwood_i2c_resources),
+ .resource = kirkwood_i2c_resources,
+ .dev = {
+ .platform_data = &kirkwood_i2c_pdata,
+ },
+};
+
+void __init kirkwood_i2c_init(void)
+{
+ platform_device_register(&kirkwood_i2c);
+}
+
+
+/*****************************************************************************
* UART0
****************************************************************************/
static struct plat_serial8250_port kirkwood_uart0_data[] = {