Home | History | Annotate | Download | only in arch
      1 /*
      2  * linux/include/asm-arm/arch-omap/fpga.h
      3  *
      4  * Interrupt handler for OMAP-1510 FPGA
      5  *
      6  * Copyright (C) 2001 RidgeRun, Inc.
      7  * Author: Greg Lonnon <glonnon (at) ridgerun.com>
      8  *
      9  * Copyright (C) 2002 MontaVista Software, Inc.
     10  *
     11  * Separated FPGA interrupts from innovator1510.c and cleaned up for 2.6
     12  * Copyright (C) 2004 Nokia Corporation by Tony Lindrgen <tony (at) atomide.com>
     13  *
     14  * This program is free software; you can redistribute it and/or modify
     15  * it under the terms of the GNU General Public License version 2 as
     16  * published by the Free Software Foundation.
     17  */
     18 
     19 #ifndef __ASM_ARCH_OMAP_FPGA_H
     20 #define __ASM_ARCH_OMAP_FPGA_H
     21 
     22 #if defined(CONFIG_MACH_OMAP_INNOVATOR) && defined(CONFIG_ARCH_OMAP15XX)
     23 extern void omap1510_fpga_init_irq(void);
     24 #else
     25 #define omap1510_fpga_init_irq()	(0)
     26 #endif
     27 
     28 #define fpga_read(reg)			__raw_readb(reg)
     29 #define fpga_write(val, reg)		__raw_writeb(val, reg)
     30 
     31 /*
     32  * ---------------------------------------------------------------------------
     33  *  H2/P2 Debug board FPGA
     34  * ---------------------------------------------------------------------------
     35  */
     36 /* maps in the FPGA registers and the ETHR registers */
     37 #define H2P2_DBG_FPGA_BASE		0xE8000000	/* VA */
     38 #define H2P2_DBG_FPGA_SIZE		SZ_4K		/* SIZE */
     39 #define H2P2_DBG_FPGA_START		0x04000000	/* PA */
     40 
     41 #define H2P2_DBG_FPGA_ETHR_START	(H2P2_DBG_FPGA_START + 0x300)
     42 #define H2P2_DBG_FPGA_FPGA_REV		(H2P2_DBG_FPGA_BASE + 0x10)	/* FPGA Revision */
     43 #define H2P2_DBG_FPGA_BOARD_REV		(H2P2_DBG_FPGA_BASE + 0x12)	/* Board Revision */
     44 #define H2P2_DBG_FPGA_GPIO		(H2P2_DBG_FPGA_BASE + 0x14)	/* GPIO outputs */
     45 #define H2P2_DBG_FPGA_LEDS		(H2P2_DBG_FPGA_BASE + 0x16)	/* LEDs outputs */
     46 #define H2P2_DBG_FPGA_MISC_INPUTS	(H2P2_DBG_FPGA_BASE + 0x18)	/* Misc inputs */
     47 #define H2P2_DBG_FPGA_LAN_STATUS	(H2P2_DBG_FPGA_BASE + 0x1A)	/* LAN Status line */
     48 #define H2P2_DBG_FPGA_LAN_RESET		(H2P2_DBG_FPGA_BASE + 0x1C)	/* LAN Reset line */
     49 
     50 /* NOTE:  most boards don't have a static mapping for the FPGA ... */
     51 struct h2p2_dbg_fpga {
     52 	/* offset 0x00 */
     53 	u16		smc91x[8];
     54 	/* offset 0x10 */
     55 	u16		fpga_rev;
     56 	u16		board_rev;
     57 	u16		gpio_outputs;
     58 	u16		leds;
     59 	/* offset 0x18 */
     60 	u16		misc_inputs;
     61 	u16		lan_status;
     62 	u16		lan_reset;
     63 	u16		reserved0;
     64 	/* offset 0x20 */
     65 	u16		ps2_data;
     66 	u16		ps2_ctrl;
     67 	/* plus also 4 rs232 ports ... */
     68 };
     69 
     70 /* LEDs definition on debug board (16 LEDs, all physically green) */
     71 #define H2P2_DBG_FPGA_LED_GREEN		(1 << 15)
     72 #define H2P2_DBG_FPGA_LED_AMBER		(1 << 14)
     73 #define H2P2_DBG_FPGA_LED_RED		(1 << 13)
     74 #define H2P2_DBG_FPGA_LED_BLUE		(1 << 12)
     75 /*  cpu0 load-meter LEDs */
     76 #define H2P2_DBG_FPGA_LOAD_METER	(1 << 0)	// A bit of fun on our board ...
     77 #define H2P2_DBG_FPGA_LOAD_METER_SIZE	11
     78 #define H2P2_DBG_FPGA_LOAD_METER_MASK	((1 << H2P2_DBG_FPGA_LOAD_METER_SIZE) - 1)
     79 
     80 #define H2P2_DBG_FPGA_P2_LED_TIMER		(1 << 0)
     81 #define H2P2_DBG_FPGA_P2_LED_IDLE		(1 << 1)
     82 
     83 /*
     84  * ---------------------------------------------------------------------------
     85  *  OMAP-1510 FPGA
     86  * ---------------------------------------------------------------------------
     87  */
     88 #define OMAP1510_FPGA_BASE			0xE8000000	/* Virtual */
     89 #define OMAP1510_FPGA_SIZE			SZ_4K
     90 #define OMAP1510_FPGA_START			0x08000000	/* Physical */
     91 
     92 /* Revision */
     93 #define OMAP1510_FPGA_REV_LOW			(OMAP1510_FPGA_BASE + 0x0)
     94 #define OMAP1510_FPGA_REV_HIGH			(OMAP1510_FPGA_BASE + 0x1)
     95 
     96 #define OMAP1510_FPGA_LCD_PANEL_CONTROL		(OMAP1510_FPGA_BASE + 0x2)
     97 #define OMAP1510_FPGA_LED_DIGIT			(OMAP1510_FPGA_BASE + 0x3)
     98 #define INNOVATOR_FPGA_HID_SPI			(OMAP1510_FPGA_BASE + 0x4)
     99 #define OMAP1510_FPGA_POWER			(OMAP1510_FPGA_BASE + 0x5)
    100 
    101 /* Interrupt status */
    102 #define OMAP1510_FPGA_ISR_LO			(OMAP1510_FPGA_BASE + 0x6)
    103 #define OMAP1510_FPGA_ISR_HI			(OMAP1510_FPGA_BASE + 0x7)
    104 
    105 /* Interrupt mask */
    106 #define OMAP1510_FPGA_IMR_LO			(OMAP1510_FPGA_BASE + 0x8)
    107 #define OMAP1510_FPGA_IMR_HI			(OMAP1510_FPGA_BASE + 0x9)
    108 
    109 /* Reset registers */
    110 #define OMAP1510_FPGA_HOST_RESET		(OMAP1510_FPGA_BASE + 0xa)
    111 #define OMAP1510_FPGA_RST			(OMAP1510_FPGA_BASE + 0xb)
    112 
    113 #define OMAP1510_FPGA_AUDIO			(OMAP1510_FPGA_BASE + 0xc)
    114 #define OMAP1510_FPGA_DIP			(OMAP1510_FPGA_BASE + 0xe)
    115 #define OMAP1510_FPGA_FPGA_IO			(OMAP1510_FPGA_BASE + 0xf)
    116 #define OMAP1510_FPGA_UART1			(OMAP1510_FPGA_BASE + 0x14)
    117 #define OMAP1510_FPGA_UART2			(OMAP1510_FPGA_BASE + 0x15)
    118 #define OMAP1510_FPGA_OMAP1510_STATUS		(OMAP1510_FPGA_BASE + 0x16)
    119 #define OMAP1510_FPGA_BOARD_REV			(OMAP1510_FPGA_BASE + 0x18)
    120 #define OMAP1510P1_PPT_DATA			(OMAP1510_FPGA_BASE + 0x100)
    121 #define OMAP1510P1_PPT_STATUS			(OMAP1510_FPGA_BASE + 0x101)
    122 #define OMAP1510P1_PPT_CONTROL			(OMAP1510_FPGA_BASE + 0x102)
    123 
    124 #define OMAP1510_FPGA_TOUCHSCREEN		(OMAP1510_FPGA_BASE + 0x204)
    125 
    126 #define INNOVATOR_FPGA_INFO			(OMAP1510_FPGA_BASE + 0x205)
    127 #define INNOVATOR_FPGA_LCD_BRIGHT_LO		(OMAP1510_FPGA_BASE + 0x206)
    128 #define INNOVATOR_FPGA_LCD_BRIGHT_HI		(OMAP1510_FPGA_BASE + 0x207)
    129 #define INNOVATOR_FPGA_LED_GRN_LO		(OMAP1510_FPGA_BASE + 0x208)
    130 #define INNOVATOR_FPGA_LED_GRN_HI		(OMAP1510_FPGA_BASE + 0x209)
    131 #define INNOVATOR_FPGA_LED_RED_LO		(OMAP1510_FPGA_BASE + 0x20a)
    132 #define INNOVATOR_FPGA_LED_RED_HI		(OMAP1510_FPGA_BASE + 0x20b)
    133 #define INNOVATOR_FPGA_CAM_USB_CONTROL		(OMAP1510_FPGA_BASE + 0x20c)
    134 #define INNOVATOR_FPGA_EXP_CONTROL		(OMAP1510_FPGA_BASE + 0x20d)
    135 #define INNOVATOR_FPGA_ISR2			(OMAP1510_FPGA_BASE + 0x20e)
    136 #define INNOVATOR_FPGA_IMR2			(OMAP1510_FPGA_BASE + 0x210)
    137 
    138 #define OMAP1510_FPGA_ETHR_START		(OMAP1510_FPGA_START + 0x300)
    139 
    140 /*
    141  * Power up Giga UART driver, turn on HID clock.
    142  * Turn off BT power, since we're not using it and it
    143  * draws power.
    144  */
    145 #define OMAP1510_FPGA_RESET_VALUE		0x42
    146 
    147 #define OMAP1510_FPGA_PCR_IF_PD0		(1 << 7)
    148 #define OMAP1510_FPGA_PCR_COM2_EN		(1 << 6)
    149 #define OMAP1510_FPGA_PCR_COM1_EN		(1 << 5)
    150 #define OMAP1510_FPGA_PCR_EXP_PD0		(1 << 4)
    151 #define OMAP1510_FPGA_PCR_EXP_PD1		(1 << 3)
    152 #define OMAP1510_FPGA_PCR_48MHZ_CLK		(1 << 2)
    153 #define OMAP1510_FPGA_PCR_4MHZ_CLK		(1 << 1)
    154 #define OMAP1510_FPGA_PCR_RSRVD_BIT0		(1 << 0)
    155 
    156 /*
    157  * Innovator/OMAP1510 FPGA HID register bit definitions
    158  */
    159 #define OMAP1510_FPGA_HID_SCLK	(1<<0)	/* output */
    160 #define OMAP1510_FPGA_HID_MOSI	(1<<1)	/* output */
    161 #define OMAP1510_FPGA_HID_nSS	(1<<2)	/* output 0/1 chip idle/select */
    162 #define OMAP1510_FPGA_HID_nHSUS	(1<<3)	/* output 0/1 host active/suspended */
    163 #define OMAP1510_FPGA_HID_MISO	(1<<4)	/* input */
    164 #define OMAP1510_FPGA_HID_ATN	(1<<5)	/* input  0/1 chip idle/ATN */
    165 #define OMAP1510_FPGA_HID_rsrvd	(1<<6)
    166 #define OMAP1510_FPGA_HID_RESETn (1<<7)	/* output - 0/1 USAR reset/run */
    167 
    168 /* The FPGA IRQ is cascaded through GPIO_13 */
    169 #define OMAP1510_INT_FPGA		(IH_GPIO_BASE + 13)
    170 
    171 /* IRQ Numbers for interrupts muxed through the FPGA */
    172 #define OMAP1510_IH_FPGA_BASE		IH_BOARD_BASE
    173 #define OMAP1510_INT_FPGA_ATN		(OMAP1510_IH_FPGA_BASE + 0)
    174 #define OMAP1510_INT_FPGA_ACK		(OMAP1510_IH_FPGA_BASE + 1)
    175 #define OMAP1510_INT_FPGA2		(OMAP1510_IH_FPGA_BASE + 2)
    176 #define OMAP1510_INT_FPGA3		(OMAP1510_IH_FPGA_BASE + 3)
    177 #define OMAP1510_INT_FPGA4		(OMAP1510_IH_FPGA_BASE + 4)
    178 #define OMAP1510_INT_FPGA5		(OMAP1510_IH_FPGA_BASE + 5)
    179 #define OMAP1510_INT_FPGA6		(OMAP1510_IH_FPGA_BASE + 6)
    180 #define OMAP1510_INT_FPGA7		(OMAP1510_IH_FPGA_BASE + 7)
    181 #define OMAP1510_INT_FPGA8		(OMAP1510_IH_FPGA_BASE + 8)
    182 #define OMAP1510_INT_FPGA9		(OMAP1510_IH_FPGA_BASE + 9)
    183 #define OMAP1510_INT_FPGA10		(OMAP1510_IH_FPGA_BASE + 10)
    184 #define OMAP1510_INT_FPGA11		(OMAP1510_IH_FPGA_BASE + 11)
    185 #define OMAP1510_INT_FPGA12		(OMAP1510_IH_FPGA_BASE + 12)
    186 #define OMAP1510_INT_ETHER		(OMAP1510_IH_FPGA_BASE + 13)
    187 #define OMAP1510_INT_FPGAUART1		(OMAP1510_IH_FPGA_BASE + 14)
    188 #define OMAP1510_INT_FPGAUART2		(OMAP1510_IH_FPGA_BASE + 15)
    189 #define OMAP1510_INT_FPGA_TS		(OMAP1510_IH_FPGA_BASE + 16)
    190 #define OMAP1510_INT_FPGA17		(OMAP1510_IH_FPGA_BASE + 17)
    191 #define OMAP1510_INT_FPGA_CAM		(OMAP1510_IH_FPGA_BASE + 18)
    192 #define OMAP1510_INT_FPGA_RTC_A		(OMAP1510_IH_FPGA_BASE + 19)
    193 #define OMAP1510_INT_FPGA_RTC_B		(OMAP1510_IH_FPGA_BASE + 20)
    194 #define OMAP1510_INT_FPGA_CD		(OMAP1510_IH_FPGA_BASE + 21)
    195 #define OMAP1510_INT_FPGA22		(OMAP1510_IH_FPGA_BASE + 22)
    196 #define OMAP1510_INT_FPGA23		(OMAP1510_IH_FPGA_BASE + 23)
    197 
    198 #endif
    199