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authorArnd Bergmann <arnd@arndb.de>2011-07-11 23:53:01 +0200
committerArnd Bergmann <arnd@arndb.de>2011-07-11 23:53:01 +0200
commitc2fda22207e2977d0b80eac58a9004b6f8beed6d (patch)
tree0c82957b9d6fb53aafe0f9a9d54de6015484e3e6 /include
parentfdcc205fb9ba006bcd37f72e1b1b904704257351 (diff)
parente4609747a33b903c03346eea20d811fafd462269 (diff)
Merge branch 'fixes-part-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 into omap/fixes
Diffstat (limited to 'include')
-rw-r--r--include/linux/i2c-omap.h27
1 files changed, 27 insertions, 0 deletions
diff --git a/include/linux/i2c-omap.h b/include/linux/i2c-omap.h
index 7472449cbb74..0aa0cbd676f7 100644
--- a/include/linux/i2c-omap.h
+++ b/include/linux/i2c-omap.h
@@ -3,6 +3,33 @@
#include <linux/platform_device.h>
+/*
+ * Version 2 of the I2C peripheral unit has a different register
+ * layout and extra registers. The ID register in the V2 peripheral
+ * unit on the OMAP4430 reports the same ID as the V1 peripheral
+ * unit on the OMAP3530, so we must inform the driver which IP
+ * version we know it is running on from platform / cpu-specific
+ * code using these constants in the hwmod class definition.
+ */
+
+#define OMAP_I2C_IP_VERSION_1 1
+#define OMAP_I2C_IP_VERSION_2 2
+
+/* struct omap_i2c_bus_platform_data .flags meanings */
+
+#define OMAP_I2C_FLAG_NO_FIFO BIT(0)
+#define OMAP_I2C_FLAG_SIMPLE_CLOCK BIT(1)
+#define OMAP_I2C_FLAG_16BIT_DATA_REG BIT(2)
+#define OMAP_I2C_FLAG_RESET_REGS_POSTIDLE BIT(3)
+#define OMAP_I2C_FLAG_APPLY_ERRATA_I207 BIT(4)
+#define OMAP_I2C_FLAG_ALWAYS_ARMXOR_CLK BIT(5)
+#define OMAP_I2C_FLAG_FORCE_19200_INT_CLK BIT(6)
+/* how the CPU address bus must be translated for I2C unit access */
+#define OMAP_I2C_FLAG_BUS_SHIFT_NONE 0
+#define OMAP_I2C_FLAG_BUS_SHIFT_1 BIT(7)
+#define OMAP_I2C_FLAG_BUS_SHIFT_2 BIT(8)
+#define OMAP_I2C_FLAG_BUS_SHIFT__SHIFT 7
+
struct omap_i2c_bus_platform_data {
u32 clkrate;
void (*set_mpu_wkup_lat)(struct device *dev, long set);