1 files changed, 72 insertions, 0 deletions
diff --git a/arch/arm/plat-nomadik/include/plat/pincfg.h b/arch/arm/plat-nomadik/include/plat/pincfg.h
new file mode 100644
index 0000000..7eed11c
--- /dev/null
+++ b/arch/arm/plat-nomadik/include/plat/pincfg.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * License terms: GNU General Public License, version 2
+ * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
+ *
+ * Based on arch/arm/mach-pxa/include/mach/mfp.h:
+ *   Copyright (C) 2007 Marvell International Ltd.
+ *   eric miao <eric.miao@marvell.com>
+ */
+
+#ifndef __PLAT_PINCFG_H
+#define __PLAT_PINCFG_H
+
+/*
+ * pin configurations are represented by 32-bit integers:
+ *
+ *	bit  0.. 8 - Pin Number (512 Pins Maximum)
+ *	bit  9..10 - Alternate Function Selection
+ *	bit 11..12 - Pull up/down state
+ *	bit     13 - Sleep mode behaviour
+ *
+ * to facilitate the definition, the following macros are provided
+ *
+ * PIN_CFG_DEFAULT - default config (0):
+ *		     pull up/down = disabled
+ *		     sleep mode = input
+ *
+ * PIN_CFG	   - default config with alternate function
+ * PIN_CFG_PULL	   - default config with alternate function and pull up/down
+ */
+
+typedef unsigned long pin_cfg_t;
+
+#define PIN_NUM_MASK		0x1ff
+#define PIN_NUM(x)		((x) & PIN_NUM_MASK)
+
+#define PIN_ALT_SHIFT		9
+#define PIN_ALT_MASK		(0x3 << PIN_ALT_SHIFT)
+#define PIN_ALT(x)		(((x) & PIN_ALT_MASK) >> PIN_ALT_SHIFT)
+#define PIN_GPIO		(NMK_GPIO_ALT_GPIO << PIN_ALT_SHIFT)
+#define PIN_ALT_A		(NMK_GPIO_ALT_A << PIN_ALT_SHIFT)
+#define PIN_ALT_B		(NMK_GPIO_ALT_B << PIN_ALT_SHIFT)
+#define PIN_ALT_C		(NMK_GPIO_ALT_C << PIN_ALT_SHIFT)
+
+#define PIN_PULL_SHIFT		11
+#define PIN_PULL_MASK		(0x3 << PIN_PULL_SHIFT)
+#define PIN_PULL(x)		(((x) & PIN_PULL_MASK) >> PIN_PULL_SHIFT)
+#define PIN_PULL_NONE		(NMK_GPIO_PULL_NONE << PIN_PULL_SHIFT)
+#define PIN_PULL_UP		(NMK_GPIO_PULL_UP << PIN_PULL_SHIFT)
+#define PIN_PULL_DOWN		(NMK_GPIO_PULL_DOWN << PIN_PULL_SHIFT)
+
+#define PIN_SLPM_SHIFT		13
+#define PIN_SLPM_MASK		(0x1 << PIN_SLPM_SHIFT)
+#define PIN_SLPM(x)		(((x) & PIN_SLPM_MASK) >> PIN_SLPM_SHIFT)
+#define PIN_SLPM_INPUT		(NMK_GPIO_SLPM_INPUT << PIN_SLPM_SHIFT)
+#define PIN_SLPM_NOCHANGE	(NMK_GPIO_SLPM_NOCHANGE << PIN_SLPM_SHIFT)
+
+#define PIN_CFG_DEFAULT		(PIN_PULL_NONE | PIN_SLPM_INPUT)
+
+#define PIN_CFG(num, alt)		\
+	(PIN_CFG_DEFAULT |\
+	 (PIN_NUM(num) | PIN_##alt))
+
+#define PIN_CFG_PULL(num, alt, pull)	\
+	((PIN_CFG_DEFAULT & ~PIN_PULL_MASK) |\
+	 (PIN_NUM(num) | PIN_##alt | PIN_PULL_##pull))
+
+extern int nmk_config_pin(pin_cfg_t cfg);
+extern int nmk_config_pins(pin_cfg_t *cfgs, int num);
+
+#endif