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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/arch/arm/mach-pxa/gumstix.h
29266 views
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/* SPDX-License-Identifier: GPL-2.0-only */

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/*

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 *  arch/arm/mach-pxa/include/mach/gumstix.h

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 */

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#include "irqs.h" /* PXA_GPIO_TO_IRQ */

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/* BTRESET - Reset line to Bluetooth module, active low signal. */

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#define GPIO_GUMSTIX_BTRESET          7

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#define GPIO_GUMSTIX_BTRESET_MD		(GPIO_GUMSTIX_BTRESET | GPIO_OUT)

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/*

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GPIOn - Input from MAX823 (or equiv), normalizing USB +5V into a clean

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interrupt signal for determining cable presence. On the gumstix F,

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this moves to GPIO17 and GPIO37. */

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/* GPIOx - Connects to USB D+ and used as a pull-up after GPIOn

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has detected a cable insertion; driven low otherwise. */

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#define GPIO_GUMSTIX_USB_GPIOn		35

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#define GPIO_GUMSTIX_USB_GPIOx		41

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/* usb state change */

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#define GUMSTIX_USB_INTR_IRQ		PXA_GPIO_TO_IRQ(GPIO_GUMSTIX_USB_GPIOn)

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#define GPIO_GUMSTIX_USB_GPIOn_MD	(GPIO_GUMSTIX_USB_GPIOn | GPIO_IN)

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#define GPIO_GUMSTIX_USB_GPIOx_CON_MD	(GPIO_GUMSTIX_USB_GPIOx | GPIO_OUT)

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#define GPIO_GUMSTIX_USB_GPIOx_DIS_MD	(GPIO_GUMSTIX_USB_GPIOx | GPIO_IN)

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/*

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 * SD/MMC definitions

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 */

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#define GUMSTIX_GPIO_nSD_WP		22 /* SD Write Protect */

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#define GUMSTIX_GPIO_nSD_DETECT		11 /* MMC/SD Card Detect */

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#define GUMSTIX_IRQ_GPIO_nSD_DETECT	PXA_GPIO_TO_IRQ(GUMSTIX_GPIO_nSD_DETECT)

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/*

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 * SMC Ethernet definitions

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 * ETH_RST provides a hardware reset line to the ethernet chip

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 * ETH is the IRQ line in from the ethernet chip to the PXA

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 */

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#define GPIO_GUMSTIX_ETH0_RST		80

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#define GPIO_GUMSTIX_ETH0_RST_MD	(GPIO_GUMSTIX_ETH0_RST | GPIO_OUT)

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#define GPIO_GUMSTIX_ETH1_RST		52

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#define GPIO_GUMSTIX_ETH1_RST_MD	(GPIO_GUMSTIX_ETH1_RST | GPIO_OUT)

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#define GPIO_GUMSTIX_ETH0		36

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#define GPIO_GUMSTIX_ETH0_MD		(GPIO_GUMSTIX_ETH0 | GPIO_IN)

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#define GUMSTIX_ETH0_IRQ		PXA_GPIO_TO_IRQ(GPIO_GUMSTIX_ETH0)

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#define GPIO_GUMSTIX_ETH1		27

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#define GPIO_GUMSTIX_ETH1_MD		(GPIO_GUMSTIX_ETH1 | GPIO_IN)

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#define GUMSTIX_ETH1_IRQ		PXA_GPIO_TO_IRQ(GPIO_GUMSTIX_ETH1)

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/* CF reset line */

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#define GPIO8_RESET			8

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/* CF slot 0 */

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#define GPIO4_nBVD1			4

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#define GPIO4_nSTSCHG			GPIO4_nBVD1

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#define GPIO11_nCD			11

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#define GPIO26_PRDY_nBSY		26

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#define GUMSTIX_S0_nSTSCHG_IRQ		PXA_GPIO_TO_IRQ(GPIO4_nSTSCHG)

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#define GUMSTIX_S0_nCD_IRQ		PXA_GPIO_TO_IRQ(GPIO11_nCD)

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#define GUMSTIX_S0_PRDY_nBSY_IRQ	PXA_GPIO_TO_IRQ(GPIO26_PRDY_nBSY)

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/* CF slot 1 */

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#define GPIO18_nBVD1			18

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#define GPIO18_nSTSCHG			GPIO18_nBVD1

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#define GPIO36_nCD			36

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#define GPIO27_PRDY_nBSY		27

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#define GUMSTIX_S1_nSTSCHG_IRQ		PXA_GPIO_TO_IRQ(GPIO18_nSTSCHG)

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#define GUMSTIX_S1_nCD_IRQ		PXA_GPIO_TO_IRQ(GPIO36_nCD)

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#define GUMSTIX_S1_PRDY_nBSY_IRQ	PXA_GPIO_TO_IRQ(GPIO27_PRDY_nBSY)

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/* CF GPIO line modes */

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#define GPIO4_nSTSCHG_MD		(GPIO4_nSTSCHG | GPIO_IN)

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#define GPIO8_RESET_MD			(GPIO8_RESET | GPIO_OUT)

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#define GPIO11_nCD_MD			(GPIO11_nCD | GPIO_IN)

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#define GPIO18_nSTSCHG_MD		(GPIO18_nSTSCHG | GPIO_IN)

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#define GPIO26_PRDY_nBSY_MD		(GPIO26_PRDY_nBSY | GPIO_IN)

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#define GPIO27_PRDY_nBSY_MD		(GPIO27_PRDY_nBSY | GPIO_IN)

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#define GPIO36_nCD_MD			(GPIO36_nCD | GPIO_IN)

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/* for expansion boards that can't be programatically detected */

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extern int am200_init(void);

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extern int am300_init(void);

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