ARM: S3C24XX: Add extended GPIO used on S3C2443 and beyond

Add the GPIO banks that are used on the S3C2443 and above to the
list of available GPIOS.

Currently we do not have any limit on the SoC GPIO, so these are
being registered whether the SoC has them or not. It is currently
up to the user not to try and use them.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>

4 files changed, 69 insertions, 5 deletions

diff --git a/arch/arm/mach-s3c2410/include/mach/gpio-nrs.h b/arch/arm/mach-s3c2410/include/mach/gpio-nrs.h
index 2edbb9c88ab..f3182ff847c 100644
--- a/arch/arm/mach-s3c2410/include/mach/gpio-nrs.h
+++ b/arch/arm/mach-s3c2410/include/mach/gpio-nrs.h
@@ -34,6 +34,10 @@
 #define S3C2410_GPIO_F_NR       (32)
 #define S3C2410_GPIO_G_NR       (32)
 #define S3C2410_GPIO_H_NR       (32)
+#define S3C2410_GPIO_J_NR       (32)    /* technically 16. */
+#define S3C2410_GPIO_K_NR       (32)    /* technically 16. */
+#define S3C2410_GPIO_L_NR       (32)    /* technically 15. */
+#define S3C2410_GPIO_M_NR       (32)    /* technically 2. */
 
 #if CONFIG_S3C_GPIO_SPACE != 0
 #error CONFIG_S3C_GPIO_SPACE cannot be zero at the moment
@@ -53,6 +57,10 @@ enum s3c_gpio_number {
         S3C2410_GPIO_F_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_E),
         S3C2410_GPIO_G_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_F),
         S3C2410_GPIO_H_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_G),
+        S3C2410_GPIO_J_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_H),
+        S3C2410_GPIO_K_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_J),
+        S3C2410_GPIO_L_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_K),
+        S3C2410_GPIO_M_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_L),
 };
 
 #endif /* __ASSEMBLY__ */
@@ -67,6 +75,10 @@ enum s3c_gpio_number {
 #define S3C2410_GPF(_nr)        (S3C2410_GPIO_F_START + (_nr))
 #define S3C2410_GPG(_nr)        (S3C2410_GPIO_G_START + (_nr))
 #define S3C2410_GPH(_nr)        (S3C2410_GPIO_H_START + (_nr))
+#define S3C2410_GPJ(_nr)        (S3C2410_GPIO_J_START + (_nr))
+#define S3C2410_GPK(_nr)        (S3C2410_GPIO_K_START + (_nr))
+#define S3C2410_GPL(_nr)        (S3C2410_GPIO_L_START + (_nr))
+#define S3C2410_GPM(_nr)        (S3C2410_GPIO_M_START + (_nr))
 
 /* compatibility until drivers can be modified */
 
diff --git a/arch/arm/mach-s3c2410/include/mach/regs-gpio.h b/arch/arm/mach-s3c2410/include/mach/regs-gpio.h
index fd672f330bf..821b966bf05 100644
--- a/arch/arm/mach-s3c2410/include/mach/regs-gpio.h
+++ b/arch/arm/mach-s3c2410/include/mach/regs-gpio.h
@@ -639,6 +639,23 @@
  * for the 2412/2413 from the 2410/2440/2442
 */
 
+/* S3C2443 and above */
+#define S3C2440_GPJCON     S3C2410_GPIOREG(0xD0)
+#define S3C2440_GPJDAT     S3C2410_GPIOREG(0xD4)
+#define S3C2440_GPJUP      S3C2410_GPIOREG(0xD8)
+
+#define S3C2443_GPKCON     S3C2410_GPIOREG(0xE0)
+#define S3C2443_GPKDAT     S3C2410_GPIOREG(0xE4)
+#define S3C2443_GPKUP      S3C2410_GPIOREG(0xE8)
+
+#define S3C2443_GPLCON     S3C2410_GPIOREG(0xF0)
+#define S3C2443_GPLDAT     S3C2410_GPIOREG(0xF4)
+#define S3C2443_GPLUP      S3C2410_GPIOREG(0xF8)
+
+#define S3C2443_GPMCON     S3C2410_GPIOREG(0x100)
+#define S3C2443_GPMDAT     S3C2410_GPIOREG(0x104)
+#define S3C2443_GPMUP      S3C2410_GPIOREG(0x108)
+
 /* miscellaneous control */
 #define S3C2400_MISCCR     S3C2410_GPIOREG(0x54)
 #define S3C2410_MISCCR     S3C2410_GPIOREG(0x80)
diff --git a/arch/arm/mach-s3c2410/include/mach/regs-gpioj.h b/arch/arm/mach-s3c2410/include/mach/regs-gpioj.h
index 1202ca5e99f..de463bc17b5 100644
--- a/arch/arm/mach-s3c2410/include/mach/regs-gpioj.h
+++ b/arch/arm/mach-s3c2410/include/mach/regs-gpioj.h
@@ -24,10 +24,6 @@
 
 #define S3C2440_GPIO_BANKJ  (416)
 
-#define S3C2440_GPJCON      S3C2410_GPIOREG(0xd0)
-#define S3C2440_GPJDAT      S3C2410_GPIOREG(0xd4)
-#define S3C2440_GPJUP       S3C2410_GPIOREG(0xd8)
-
 #define S3C2413_GPJCON          S3C2410_GPIOREG(0x80)
 #define S3C2413_GPJDAT          S3C2410_GPIOREG(0x84)
 #define S3C2413_GPJUP           S3C2410_GPIOREG(0x88)
diff --git a/arch/arm/plat-s3c24xx/gpiolib.c b/arch/arm/plat-s3c24xx/gpiolib.c
index 376b061804c..e8c0e8a247b 100644
--- a/arch/arm/plat-s3c24xx/gpiolib.c
+++ b/arch/arm/plat-s3c24xx/gpiolib.c
@@ -1,6 +1,6 @@
 /* linux/arch/arm/plat-s3c24xx/gpiolib.c
  *
- * Copyright (c) 2008 Simtec Electronics
+ * Copyright (c) 2008-2010 Simtec Electronics
  *      http://armlinux.simtec.co.uk/
  *      Ben Dooks <ben@simtec.co.uk>
  *
@@ -172,8 +172,47 @@ struct s3c_gpio_chip s3c24xx_gpios[] = {
                         .ngpio                  = 11,
                 },
         },
+                /* GPIOS for the S3C2443 and later devices. */
+        {
+                .base   = S3C2440_GPJCON,
+                .pm     = __gpio_pm(&s3c_gpio_pm_2bit),
+                .chip   = {
+                        .base                   = S3C2410_GPJ(0),
+                        .owner                  = THIS_MODULE,
+                        .label                  = "GPIOJ",
+                        .ngpio                  = 16,
+                },
+        }, {
+                .base   = S3C2443_GPKCON,
+                .pm     = __gpio_pm(&s3c_gpio_pm_2bit),
+                .chip   = {
+                        .base                   = S3C2410_GPK(0),
+                        .owner                  = THIS_MODULE,
+                        .label                  = "GPIOK",
+                        .ngpio                  = 16,
+                },
+        }, {
+                .base   = S3C2443_GPLCON,
+                .pm     = __gpio_pm(&s3c_gpio_pm_2bit),
+                .chip   = {
+                        .base                   = S3C2410_GPL(0),
+                        .owner                  = THIS_MODULE,
+                        .label                  = "GPIOL",
+                        .ngpio                  = 15,
+                },
+        }, {
+                .base   = S3C2443_GPMCON,
+                .pm     = __gpio_pm(&s3c_gpio_pm_2bit),
+                .chip   = {
+                        .base                   = S3C2410_GPM(0),
+                        .owner                  = THIS_MODULE,
+                        .label                  = "GPIOM",
+                        .ngpio                  = 2,
+                },
+        },
 };
 
+
 static __init int s3c24xx_gpiolib_init(void)
 {
         struct s3c_gpio_chip *chip = s3c24xx_gpios;