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| author | Mike Rapoport <mike@compulab.co.il> | 2008-08-17 06:23:05 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-09-09 16:32:51 +0100 |
| commit | 9ba63c4fa10cf446eff06a3200822d22b0c31c31 (patch) | |
| tree | bc67d381e703aa150799f07ef85a7d7369376b72 /drivers/i2c | |
| parent | 57a7a62eb65b35f51814382b0841ff99be242880 (diff) | |
| download | linux-9ba63c4fa10cf446eff06a3200822d22b0c31c31.tar.gz linux-9ba63c4fa10cf446eff06a3200822d22b0c31c31.tar.bz2 linux-9ba63c4fa10cf446eff06a3200822d22b0c31c31.zip | |
[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>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-pxa.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c index 44d838410f15..5d5fbc518b7b 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); |