[ARM] 5201/1: PXA3xx: Add support for power i2c bus

Add power I2C support for PXA3xx processors

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 7 insertions, 5 deletions

diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index 44d838410f1..5d5fbc518b7 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -60,6 +60,7 @@ struct pxa_i2c {
         u32                     icrlog[32];
 
         void __iomem            *reg_base;
+        unsigned int            reg_shift;
 
         unsigned long           iobase;
         unsigned long           iosize;
@@ -68,11 +69,11 @@ struct pxa_i2c {
         int                     use_pio;
 };
 
-#define _IBMR(i2c)      ((i2c)->reg_base + 0)
-#define _IDBR(i2c)      ((i2c)->reg_base + 8)
-#define _ICR(i2c)       ((i2c)->reg_base + 0x10)
-#define _ISR(i2c)       ((i2c)->reg_base + 0x18)
-#define _ISAR(i2c)      ((i2c)->reg_base + 0x20)
+#define _IBMR(i2c)      ((i2c)->reg_base + (0x0 << (i2c)->reg_shift))
+#define _IDBR(i2c)      ((i2c)->reg_base + (0x4 << (i2c)->reg_shift))
+#define _ICR(i2c)       ((i2c)->reg_base + (0x8 << (i2c)->reg_shift))
+#define _ISR(i2c)       ((i2c)->reg_base + (0xc << (i2c)->reg_shift))
+#define _ISAR(i2c)      ((i2c)->reg_base + (0x10 << (i2c)->reg_shift))
 
 /*
  * I2C Slave mode address
@@ -993,6 +994,7 @@ static int i2c_pxa_probe(struct platform_device *dev)
                 ret = -EIO;
                 goto eremap;
         }
+        i2c->reg_shift = (cpu_is_pxa3xx() && (dev->id == 1)) ? 0 : 1;
 
         i2c->iobase = res->start;
         i2c->iosize = res_len(res);