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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-03 14:31:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-03 14:31:24 -0700
commitbe82ae0238b0453afcf4a76f0512b7dde34ba500 (patch)
treeaaa3f5f11fd51fd73365ee1a2164aad9a03de060 /arch/arm/plat-nomadik/include/plat/pincfg.h
parent4b4fd27c0b5ec638a1f06ced9226fd95229dbbf0 (diff)
parent7b70c4275f28702b76b273c8534c38f8313812e9 (diff)
downloadlinux-be82ae0238b0453afcf4a76f0512b7dde34ba500.tar.bz2
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (291 commits) ARM: AMBA: Add pclk support to AMBA bus infrastructure ARM: 6278/2: fix regression in RealView after the introduction of pclk ARM: 6277/1: mach-shmobile: Allow users to select HZ, default to 128 ARM: 6276/1: mach-shmobile: remove duplicate NR_IRQS_LEGACY ARM: 6246/1: mmci: support larger MMCIDATALENGTH register ARM: 6245/1: mmci: enable hardware flow control on Ux500 variants ARM: 6244/1: mmci: add variant data and default MCICLOCK support ARM: 6243/1: mmci: pass power_mode to the translate_vdd callback ARM: 6274/1: add global control registers definition header file for nuc900 mx2_camera: fix type of dma buffer virtual address pointer mx2_camera: Add soc_camera support for i.MX25/i.MX27 arm/imx/gpio: add spinlock protection ARM: Add support for the LPC32XX arch ARM: LPC32XX: Arch config menu supoport and makefiles ARM: LPC32XX: Phytec 3250 platform support ARM: LPC32XX: Misc support functions ARM: LPC32XX: Serial support code ARM: LPC32XX: System suspend support ARM: LPC32XX: GPIO, timer, and IRQ drivers ARM: LPC32XX: Clock driver ...
Diffstat (limited to 'arch/arm/plat-nomadik/include/plat/pincfg.h')
-rw-r--r--arch/arm/plat-nomadik/include/plat/pincfg.h72
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 000000000000..7eed11c1038d
--- /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