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authorHerbert Valerio Riedel <hvr@gnu.org>2007-11-12 09:51:36 +0200
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-01-26 15:04:02 +0000
commit144aa3db1e8faa34bb33c61131494ac879a6d978 (patch)
tree886cb38c489f31fa4c525dc84ae0d1ecccba39af /arch/arm/mach-orion
parent2f0a8df40ff008822e5570b3323c56622cd92c95 (diff)
[ARM] Orion: I2C support
The Orion I2C controller is the same one used in the Discovery family (MV643XX). This patch include the common platform_device stuff according to the existing i2c_mv64xxx.c conventions. Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org> Signed-off-by: Tzachi Perelstein <tzachi@marvell.com>
Diffstat (limited to 'arch/arm/mach-orion')
-rw-r--r--arch/arm/mach-orion/common.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/arm/mach-orion/common.c b/arch/arm/mach-orion/common.c
index ff34827f82a..5e20b6b3250 100644
--- a/arch/arm/mach-orion/common.c
+++ b/arch/arm/mach-orion/common.c
@@ -15,6 +15,7 @@
#include <linux/platform_device.h>
#include <linux/serial_8250.h>
#include <linux/mv643xx_eth.h>
+#include <linux/mv643xx_i2c.h>
#include <asm/page.h>
#include <asm/timex.h>
#include <asm/mach/map.h>
@@ -213,6 +214,42 @@ void __init orion_eth_init(struct mv643xx_eth_platform_data *eth_data)
}
/*****************************************************************************
+ * I2C controller
+ * (The Orion and Discovery (MV643xx) families share the same I2C controller)
+ ****************************************************************************/
+
+static struct mv64xxx_i2c_pdata orion_i2c_pdata = {
+ .freq_m = 8, /* assumes 166 MHz TCLK */
+ .freq_n = 3,
+ .timeout = 1000, /* Default timeout of 1 second */
+};
+
+static struct resource orion_i2c_resources[] = {
+ {
+ .name = "i2c base",
+ .start = I2C_BASE,
+ .end = I2C_BASE + 0x20 -1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .name = "i2c irq",
+ .start = IRQ_ORION_I2C,
+ .end = IRQ_ORION_I2C,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device orion_i2c = {
+ .name = MV64XXX_I2C_CTLR_NAME,
+ .id = 0,
+ .num_resources = ARRAY_SIZE(orion_i2c_resources),
+ .resource = orion_i2c_resources,
+ .dev = {
+ .platform_data = &orion_i2c_pdata,
+ },
+};
+
+/*****************************************************************************
* General
****************************************************************************/
@@ -274,4 +311,5 @@ void __init orion_init(void)
platform_device_register(&orion_ehci0);
if (dev == MV88F5182_DEV_ID)
platform_device_register(&orion_ehci1);
+ platform_device_register(&orion_i2c);
}