diff options
| author | Andrew Lunn <andrew@lunn.ch> | 2011-05-15 13:32:52 +0200 |
|---|---|---|
| committer | Nicolas Pitre <nico@fluxnic.net> | 2011-05-16 15:25:54 -0400 |
| commit | b2f427a1088a9ad4f86855f4df1fc059bebb441f (patch) | |
| tree | 61508b83eabb956e6ab1255110689485151872b3 /arch/arm/mach-kirkwood | |
| parent | 44350061905b2a502579d3827eacaf8efa393aad (diff) | |
ARM: orion: Refactor the MPP code common in the orion platform
mv78xx0 and kirkwood use identical mpp code.
It should also be possible to rewrite the orion5x mpp to use this
platform code.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Diffstat (limited to 'arch/arm/mach-kirkwood')
| -rw-r--r-- | arch/arm/mach-kirkwood/mpp.c | 58 | ||||
| -rw-r--r-- | arch/arm/mach-kirkwood/mpp.h | 6 |
2 files changed, 3 insertions, 61 deletions
diff --git a/arch/arm/mach-kirkwood/mpp.c b/arch/arm/mach-kirkwood/mpp.c index 7ce20184806..b0a7d979a8e 100644 --- a/arch/arm/mach-kirkwood/mpp.c +++ b/arch/arm/mach-kirkwood/mpp.c @@ -14,6 +14,7 @@ #include <linux/io.h> #include <asm/gpio.h> #include <mach/hardware.h> +#include <plat/mpp.h> #include "common.h" #include "mpp.h" @@ -36,61 +37,8 @@ static unsigned int __init kirkwood_variant(void) return 0; } -#define MPP_CTRL(i) (DEV_BUS_VIRT_BASE + (i) * 4) -#define MPP_NR_REGS (1 + MPP_MAX/8) - void __init kirkwood_mpp_conf(unsigned int *mpp_list) { - u32 mpp_ctrl[MPP_NR_REGS]; - unsigned int variant_mask; - int i; - - variant_mask = kirkwood_variant(); - if (!variant_mask) - return; - - printk(KERN_DEBUG "initial MPP regs:"); - for (i = 0; i < MPP_NR_REGS; i++) { - mpp_ctrl[i] = readl(MPP_CTRL(i)); - printk(" %08x", mpp_ctrl[i]); - } - printk("\n"); - - for ( ; *mpp_list; mpp_list++) { - unsigned int num = MPP_NUM(*mpp_list); - unsigned int sel = MPP_SEL(*mpp_list); - int shift, gpio_mode; - - if (num > MPP_MAX) { - printk(KERN_ERR "kirkwood_mpp_conf: invalid MPP " - "number (%u)\n", num); - continue; - } - if (!(*mpp_list & variant_mask)) { - printk(KERN_WARNING - "kirkwood_mpp_conf: requested MPP%u config " - "unavailable on this hardware\n", num); - continue; - } - - shift = (num & 7) << 2; - mpp_ctrl[num / 8] &= ~(0xf << shift); - mpp_ctrl[num / 8] |= sel << shift; - - gpio_mode = 0; - if (*mpp_list & MPP_INPUT_MASK) - gpio_mode |= GPIO_INPUT_OK; - if (*mpp_list & MPP_OUTPUT_MASK) - gpio_mode |= GPIO_OUTPUT_OK; - if (sel != 0) - gpio_mode = 0; - orion_gpio_set_valid(num, gpio_mode); - } - - printk(KERN_DEBUG " final MPP regs:"); - for (i = 0; i < MPP_NR_REGS; i++) { - writel(mpp_ctrl[i], MPP_CTRL(i)); - printk(" %08x", mpp_ctrl[i]); - } - printk("\n"); + orion_mpp_conf(mpp_list, kirkwood_variant(), + MPP_MAX, DEV_BUS_VIRT_BASE); } diff --git a/arch/arm/mach-kirkwood/mpp.h b/arch/arm/mach-kirkwood/mpp.h index 9b0a94d85c3..ac787957e2d 100644 --- a/arch/arm/mach-kirkwood/mpp.h +++ b/arch/arm/mach-kirkwood/mpp.h @@ -22,14 +22,8 @@ /* available on F6281 */ ((!!(_F6281)) << 17) | \ /* available on F6282 */ ((!!(_F6282)) << 18)) -#define MPP_NUM(x) ((x) & 0xff) -#define MPP_SEL(x) (((x) >> 8) & 0xf) - /* num sel i o 6180 6190 6192 6281 6282 */ -#define MPP_INPUT_MASK MPP( 0, 0x0, 1, 0, 0, 0, 0, 0, 0 ) -#define MPP_OUTPUT_MASK MPP( 0, 0x0, 0, 1, 0, 0, 0, 0, 0 ) - #define MPP_F6180_MASK MPP( 0, 0x0, 0, 0, 1, 0, 0, 0, 0 ) #define MPP_F6190_MASK MPP( 0, 0x0, 0, 0, 0, 1, 0, 0, 0 ) #define MPP_F6192_MASK MPP( 0, 0x0, 0, 0, 0, 0, 1, 0, 0 ) |