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-rw-r--r--arch/arm/mach-kirkwood/mpp.c58
1 files changed, 3 insertions, 55 deletions
diff --git a/arch/arm/mach-kirkwood/mpp.c b/arch/arm/mach-kirkwood/mpp.c
index 7ce201848067..b0a7d979a8ed 100644
--- a/arch/arm/mach-kirkwood/mpp.c
+++ b/arch/arm/mach-kirkwood/mpp.c
@@ -14,6 +14,7 @@
14#include <linux/io.h> 14#include <linux/io.h>
15#include <asm/gpio.h> 15#include <asm/gpio.h>
16#include <mach/hardware.h> 16#include <mach/hardware.h>
17#include <plat/mpp.h>
17#include "common.h" 18#include "common.h"
18#include "mpp.h" 19#include "mpp.h"
19 20
@@ -36,61 +37,8 @@ static unsigned int __init kirkwood_variant(void)
36 return 0; 37 return 0;
37} 38}
38 39
39#define MPP_CTRL(i) (DEV_BUS_VIRT_BASE + (i) * 4)
40#define MPP_NR_REGS (1 + MPP_MAX/8)
41
42void __init kirkwood_mpp_conf(unsigned int *mpp_list) 40void __init kirkwood_mpp_conf(unsigned int *mpp_list)
43{ 41{
44 u32 mpp_ctrl[MPP_NR_REGS]; 42 orion_mpp_conf(mpp_list, kirkwood_variant(),
45 unsigned int variant_mask; 43 MPP_MAX, DEV_BUS_VIRT_BASE);
46 int i;
47
48 variant_mask = kirkwood_variant();
49 if (!variant_mask)
50 return;
51
52 printk(KERN_DEBUG "initial MPP regs:");
53 for (i = 0; i < MPP_NR_REGS; i++) {
54 mpp_ctrl[i] = readl(MPP_CTRL(i));
55 printk(" %08x", mpp_ctrl[i]);
56 }
57 printk("\n");
58
59 for ( ; *mpp_list; mpp_list++) {
60 unsigned int num = MPP_NUM(*mpp_list);
61 unsigned int sel = MPP_SEL(*mpp_list);
62 int shift, gpio_mode;
63
64 if (num > MPP_MAX) {
65 printk(KERN_ERR "kirkwood_mpp_conf: invalid MPP "
66 "number (%u)\n", num);
67 continue;
68 }
69 if (!(*mpp_list & variant_mask)) {
70 printk(KERN_WARNING
71 "kirkwood_mpp_conf: requested MPP%u config "
72 "unavailable on this hardware\n", num);
73 continue;
74 }
75
76 shift = (num & 7) << 2;
77 mpp_ctrl[num / 8] &= ~(0xf << shift);
78 mpp_ctrl[num / 8] |= sel << shift;
79
80 gpio_mode = 0;
81 if (*mpp_list & MPP_INPUT_MASK)
82 gpio_mode |= GPIO_INPUT_OK;
83 if (*mpp_list & MPP_OUTPUT_MASK)
84 gpio_mode |= GPIO_OUTPUT_OK;
85 if (sel != 0)
86 gpio_mode = 0;
87 orion_gpio_set_valid(num, gpio_mode);
88 }
89
90 printk(KERN_DEBUG " final MPP regs:");
91 for (i = 0; i < MPP_NR_REGS; i++) {
92 writel(mpp_ctrl[i], MPP_CTRL(i));
93 printk(" %08x", mpp_ctrl[i]);
94 }
95 printk("\n");
96} 44}