diff options
| author | Linus Walleij <linus.walleij@stericsson.com> | 2010-09-07 22:43:19 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-10-08 10:02:27 +0100 |
| commit | 01723a9566f9e9ce4c75e5c4c9f6dc20600871a7 (patch) | |
| tree | ee80f7c5d7e9b8b02e9b6b882921ea0132d8cb92 | |
| parent | 2da6d64a638eb982bebf34e2999f0b67cfb90f33 (diff) | |
ARM: 6368/1: move the PrimeCell IDs to use macros
This make four macros for the PrimeCell ID register available to
drivers that use them witout using the PrimeCell/AMBA bus
abstraction and struct amba_device. It also moves the magic
PrimeCell CID "B105F00D" to the bus.h header file.
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | drivers/amba/bus.c | 2 | ||||
| -rw-r--r-- | include/linux/amba/bus.h | 15 |
2 files changed, 12 insertions, 5 deletions
diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c index d31590e7011b..2737b9752205 100644 --- a/drivers/amba/bus.c +++ b/drivers/amba/bus.c @@ -298,7 +298,7 @@ int amba_device_register(struct amba_device *dev, struct resource *parent) amba_put_disable_pclk(dev); - if (cid == 0xb105f00d) + if (cid == AMBA_CID) dev->periphid = pid; if (!dev->periphid) diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h index b0c174012436..c6454cca0447 100644 --- a/include/linux/amba/bus.h +++ b/include/linux/amba/bus.h @@ -20,6 +20,7 @@ #include <linux/resource.h> #define AMBA_NR_IRQS 2 +#define AMBA_CID 0xb105f00d struct clk; @@ -70,9 +71,15 @@ void amba_release_regions(struct amba_device *); #define amba_pclk_disable(d) \ do { if (!IS_ERR((d)->pclk)) clk_disable((d)->pclk); } while (0) -#define amba_config(d) (((d)->periphid >> 24) & 0xff) -#define amba_rev(d) (((d)->periphid >> 20) & 0x0f) -#define amba_manf(d) (((d)->periphid >> 12) & 0xff) -#define amba_part(d) ((d)->periphid & 0xfff) +/* Some drivers don't use the struct amba_device */ +#define AMBA_CONFIG_BITS(a) (((a) >> 24) & 0xff) +#define AMBA_REV_BITS(a) (((a) >> 20) & 0x0f) +#define AMBA_MANF_BITS(a) (((a) >> 12) & 0xff) +#define AMBA_PART_BITS(a) ((a) & 0xfff) + +#define amba_config(d) AMBA_CONFIG_BITS((d)->periphid) +#define amba_rev(d) AMBA_REV_BITS((d)->periphid) +#define amba_manf(d) AMBA_MANF_BITS((d)->periphid) +#define amba_part(d) AMBA_PART_BITS((d)->periphid) #endif |