mb-regs.h

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/* mb-regs.h: motherboard registers
 *
 * Copyright (C) 2003, 2004 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 */

#ifndef _ASM_MB_REGS_H
#define _ASM_MB_REGS_H

#include <asm/cpu-irqs.h>
#include <asm/sections.h>
#include <asm/mem-layout.h>

#ifndef __ASSEMBLY__
/* gcc builtins, annotated */

unsigned long __builtin_read8(volatile void __iomem *);
unsigned long __builtin_read16(volatile void __iomem *);
unsigned long __builtin_read32(volatile void __iomem *);
void __builtin_write8(volatile void __iomem *, unsigned char);
void __builtin_write16(volatile void __iomem *, unsigned short);
void __builtin_write32(volatile void __iomem *, unsigned long);
#endif

#define __region_IO KERNEL_IO_START /* the region from 0xe0000000 to 0xffffffff has suitable
                     * protection laid over the top for use in memory-mapped
                     * I/O
                     */

#define __region_CS0    0xff000000  /* Boot ROMs area */

#ifdef CONFIG_MB93091_VDK
/*
 * VDK motherboard and CPU card specific stuff
 */

#include <asm/mb93091-fpga-irqs.h>

#define IRQ_CPU_MB93493_0   IRQ_CPU_EXTERNAL0
#define IRQ_CPU_MB93493_1   IRQ_CPU_EXTERNAL1

#define __region_CS2    0xe0000000  /* SLBUS/PCI I/O space */
#define __region_CS2_M      0x0fffffff /* mask */
#define __region_CS2_C      0x00000000 /* control */
#define __region_CS5    0xf0000000  /* MB93493 CSC area (DAV daughter board) */
#define __region_CS5_M      0x00ffffff
#define __region_CS5_C      0x00010000
#define __region_CS7    0xf1000000  /* CB70 CPU-card PCMCIA port I/O space */
#define __region_CS7_M      0x00ffffff
#define __region_CS7_C      0x00410701
#define __region_CS1    0xfc000000  /* SLBUS/PCI bridge control registers */
#define __region_CS1_M      0x000fffff
#define __region_CS1_C      0x00000000
#define __region_CS6    0xfc100000  /* CB70 CPU-card DM9000 LAN I/O space */
#define __region_CS6_M      0x000fffff
#define __region_CS6_C      0x00400707
#define __region_CS3    0xfc200000  /* MB93493 CSR area (DAV daughter board) */
#define __region_CS3_M      0x000fffff
#define __region_CS3_C      0xc8100000
#define __region_CS4    0xfd000000  /* CB70 CPU-card extra flash space */
#define __region_CS4_M      0x00ffffff
#define __region_CS4_C      0x00000f07

#define __region_PCI_IO     (__region_CS2 + 0x04000000UL)
#define __region_PCI_MEM    (__region_CS2 + 0x08000000UL)
#define __flush_PCI_writes()                        \
do {                                    \
    __builtin_write8((volatile void __iomem *) __region_PCI_MEM, 0);    \
} while(0)

#define __is_PCI_IO(addr) \
    (((unsigned long)(addr) >> 24) - (__region_PCI_IO >> 24)  < (0x04000000UL >> 24))

#define __is_PCI_MEM(addr) \
    ((unsigned long)(addr) - __region_PCI_MEM < 0x08000000UL)

#define __is_PCI_addr(addr) \
    ((unsigned long)(addr) - __region_PCI_IO < 0x0c000000UL)

#define __get_CLKSW()   ({ *(volatile unsigned long *)(__region_CS2 + 0x0130000cUL) & 0xffUL; })
#define __get_CLKIN()   (__get_CLKSW() * 125U * 100000U / 24U)

#ifndef __ASSEMBLY__
extern int __nongprelbss mb93090_mb00_detected;
#endif

#define __addr_LEDS()       (__region_CS2 + 0x01200004UL)
#ifdef CONFIG_MB93090_MB00
#define __set_LEDS(X)                           \
do {                                    \
    if (mb93090_mb00_detected)                  \
        __builtin_write32((void __iomem *) __addr_LEDS(), ~(X));    \
} while (0)
#else
#define __set_LEDS(X)
#endif

#define __addr_LCD()        (__region_CS2 + 0x01200008UL)
#define __get_LCD(B)        __builtin_read32((volatile void __iomem *) (B))
#define __set_LCD(B,X)      __builtin_write32((volatile void __iomem *) (B), (X))

#define LCD_D           0x000000ff      /* LCD data bus */
#define LCD_RW          0x00000100      /* LCD R/W signal */
#define LCD_RS          0x00000200      /* LCD Register Select */
#define LCD_E           0x00000400      /* LCD Start Enable Signal */

#define LCD_CMD_CLEAR       (LCD_E|0x001)
#define LCD_CMD_HOME        (LCD_E|0x002)
#define LCD_CMD_CURSOR_INC  (LCD_E|0x004)
#define LCD_CMD_SCROLL_INC  (LCD_E|0x005)
#define LCD_CMD_CURSOR_DEC  (LCD_E|0x006)
#define LCD_CMD_SCROLL_DEC  (LCD_E|0x007)
#define LCD_CMD_OFF     (LCD_E|0x008)
#define LCD_CMD_ON(CRSR,BLINK)  (LCD_E|0x00c|(CRSR<<1)|BLINK)
#define LCD_CMD_CURSOR_MOVE_L   (LCD_E|0x010)
#define LCD_CMD_CURSOR_MOVE_R   (LCD_E|0x014)
#define LCD_CMD_DISPLAY_SHIFT_L (LCD_E|0x018)
#define LCD_CMD_DISPLAY_SHIFT_R (LCD_E|0x01c)
#define LCD_CMD_FUNCSET(DL,N,F) (LCD_E|0x020|(DL<<4)|(N<<3)|(F<<2))
#define LCD_CMD_SET_CG_ADDR(X)  (LCD_E|0x040|X)
#define LCD_CMD_SET_DD_ADDR(X)  (LCD_E|0x080|X)
#define LCD_CMD_READ_BUSY   (LCD_E|LCD_RW)
#define LCD_DATA_WRITE(X)   (LCD_E|LCD_RS|(X))
#define LCD_DATA_READ       (LCD_E|LCD_RS|LCD_RW)

#else
/*
 * PDK unit specific stuff
 */

#include <asm/mb93093-fpga-irqs.h>

#define IRQ_CPU_MB93493_0   IRQ_CPU_EXTERNAL0
#define IRQ_CPU_MB93493_1   IRQ_CPU_EXTERNAL1

#define __region_CS5    0xf0000000  /* MB93493 CSC area (DAV daughter board) */
#define __region_CS5_M      0x00ffffff /* mask */
#define __region_CS5_C      0x00010000 /* control */
#define __region_CS2    0x20000000  /* FPGA registers */
#define __region_CS2_M      0x000fffff
#define __region_CS2_C      0x00000000
#define __region_CS1    0xfc100000  /* LAN registers */
#define __region_CS1_M      0x000fffff
#define __region_CS1_C      0x00010404
#define __region_CS3    0xfc200000  /* MB93493 CSR area (DAV daughter board) */
#define __region_CS3_M      0x000fffff
#define __region_CS3_C      0xc8000000
#define __region_CS4    0xfd000000  /* extra ROMs area */
#define __region_CS4_M      0x00ffffff
#define __region_CS4_C      0x00000f07

#define __region_CS6    0xfe000000  /* not used - hide behind CPU resource I/O regs */
#define __region_CS6_M      0x000fffff
#define __region_CS6_C      0x00000f07
#define __region_CS7    0xfe000000  /* not used - hide behind CPU resource I/O regs */
#define __region_CS7_M      0x000fffff
#define __region_CS7_C      0x00000f07

#define __is_PCI_IO(addr)   0   /* no PCI */
#define __is_PCI_MEM(addr)  0
#define __is_PCI_addr(addr) 0
#define __region_PCI_IO     0
#define __region_PCI_MEM    0
#define __flush_PCI_writes()    do { } while(0)

#define __get_CLKSW()       0UL
#define __get_CLKIN()       66000000UL

#define __addr_LEDS()       (__region_CS2 + 0x00000023UL)
#define __set_LEDS(X)       __builtin_write8((volatile void __iomem *) __addr_LEDS(), (X))

#define __addr_FPGATR()     (__region_CS2 + 0x00000030UL)
#define __set_FPGATR(X)     __builtin_write32((volatile void __iomem *) __addr_FPGATR(), (X))
#define __get_FPGATR()      __builtin_read32((volatile void __iomem *) __addr_FPGATR())

#define MB93093_FPGA_FPGATR_AUDIO_CLK   0x00000003

#define __set_FPGATR_AUDIO_CLK(V) \
    __set_FPGATR((__get_FPGATR() & ~MB93093_FPGA_FPGATR_AUDIO_CLK) | (V))

#define MB93093_FPGA_FPGATR_AUDIO_CLK_OFF   0x0
#define MB93093_FPGA_FPGATR_AUDIO_CLK_11MHz 0x1
#define MB93093_FPGA_FPGATR_AUDIO_CLK_12MHz 0x2
#define MB93093_FPGA_FPGATR_AUDIO_CLK_02MHz 0x3

#define MB93093_FPGA_SWR_PUSHSWMASK (0x1F<<26)
#define MB93093_FPGA_SWR_PUSHSW4    (1<<29)

#define __addr_FPGA_SWR     ((volatile void __iomem *)(__region_CS2 + 0x28UL))
#define __get_FPGA_PUSHSW1_5()  (__builtin_read32(__addr_FPGA_SWR) & MB93093_FPGA_SWR_PUSHSWMASK)


#endif

#endif /* _ASM_MB_REGS_H */