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>

1 files changed, 3 insertions, 55 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);
 }