mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-28 07:31:15 +00:00
9d803d8c0b
* lots of bugfixes in the assembler code * reverted hardware.h back to original * enabled hardware DRAM calibration * GCC-4 fix: modified GLOBAL_DATA_POINTER macro
158 lines
3.7 KiB
C
158 lines
3.7 KiB
C
/*
|
|
* linux/include/asm-arm/arch-pxa/hardware.h
|
|
*
|
|
* Author: Nicolas Pitre
|
|
* Created: Jun 15, 2001
|
|
* Copyright: MontaVista Software Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* Note: This file was taken from linux-2.4.19-rmk4-pxa1
|
|
*
|
|
* - 2003/01/20 implementation specifics activated
|
|
* Robert Schwebel <r.schwebel@pengutronix.de>
|
|
*/
|
|
|
|
#ifndef __ASM_ARCH_HARDWARE_H
|
|
#define __ASM_ARCH_HARDWARE_H
|
|
|
|
#include <linux/config.h>
|
|
#include <asm/mach-types.h>
|
|
|
|
|
|
/*
|
|
* These are statically mapped PCMCIA IO space for designs using it as a
|
|
* generic IO bus, typically with ISA parts, hardwired IDE interfaces, etc.
|
|
* The actual PCMCIA code is mapping required IO region at run time.
|
|
*/
|
|
#define PCMCIA_IO_0_BASE 0xf6000000
|
|
#define PCMCIA_IO_1_BASE 0xf7000000
|
|
|
|
|
|
/*
|
|
* We requires absolute addresses.
|
|
*/
|
|
#define PCIO_BASE 0
|
|
|
|
/*
|
|
* Workarounds for at least 2 errata so far require this.
|
|
* The mapping is set in mach-pxa/generic.c.
|
|
*/
|
|
#define UNCACHED_PHYS_0 0xff000000
|
|
#define UNCACHED_ADDR UNCACHED_PHYS_0
|
|
|
|
/*
|
|
* Intel PXA internal I/O mappings:
|
|
*
|
|
* 0x40000000 - 0x41ffffff <--> 0xf8000000 - 0xf9ffffff
|
|
* 0x44000000 - 0x45ffffff <--> 0xfa000000 - 0xfbffffff
|
|
* 0x48000000 - 0x49ffffff <--> 0xfc000000 - 0xfdffffff
|
|
*/
|
|
|
|
/* FIXME: Only this does work for u-boot... find out why... [RS] */
|
|
#define UBOOT_REG_FIX 1
|
|
|
|
#ifndef UBOOT_REG_FIX
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#define io_p2v(x) ( ((x) | 0xbe000000) ^ (~((x) >> 1) & 0x06000000) )
|
|
#define io_v2p( x ) ( ((x) & 0x41ffffff) ^ ( ((x) & 0x06000000) << 1) )
|
|
|
|
/*
|
|
* This __REG() version gives the same results as the one above, except
|
|
* that we are fooling gcc somehow so it generates far better and smaller
|
|
* assembly code for access to contigous registers. It's a shame that gcc
|
|
* doesn't guess this by itself.
|
|
*/
|
|
#include <asm/types.h>
|
|
typedef struct { volatile u32 offset[4096]; } __regbase;
|
|
# define __REGP(x) ((__regbase *)((x)&~4095))->offset[((x)&4095)>>2]
|
|
# define __REG(x) __REGP(io_p2v(x))
|
|
#endif
|
|
|
|
/* Let's kick gcc's ass again... */
|
|
# define __REG2(x,y) \
|
|
( __builtin_constant_p(y) ? (__REG((x) + (y))) \
|
|
: (*(volatile u32 *)((u32)&__REG(x) + (y))) )
|
|
|
|
# define __PREG(x) (io_v2p((u32)&(x)))
|
|
|
|
#else
|
|
|
|
# define __REG(x) io_p2v(x)
|
|
# define __PREG(x) io_v2p(x)
|
|
|
|
# undef io_p2v
|
|
# undef __REG
|
|
# ifndef __ASSEMBLY__
|
|
# define io_p2v(PhAdd) (PhAdd)
|
|
# define __REG(x) (*((volatile u32 *)io_p2v(x)))
|
|
# define __REG2(x,y) (*(volatile u32 *)((u32)&__REG(x) + (y)))
|
|
# else
|
|
# define __REG(x) (x)
|
|
# ifdef CONFIG_CPU_MONAHANS /* Hack to make this work with mona's pxa-regs.h */
|
|
# define __REG_2(x) (x)
|
|
# define __REG_3(x) (x)
|
|
# endif
|
|
# endif
|
|
#endif /* UBOOT_REG_FIX */
|
|
|
|
#include "pxa-regs.h"
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
/*
|
|
* GPIO edge detection for IRQs:
|
|
* IRQs are generated on Falling-Edge, Rising-Edge, or both.
|
|
* This must be called *before* the corresponding IRQ is registered.
|
|
* Use this instead of directly setting GRER/GFER.
|
|
*/
|
|
#define GPIO_FALLING_EDGE 1
|
|
#define GPIO_RISING_EDGE 2
|
|
#define GPIO_BOTH_EDGES 3
|
|
extern void set_GPIO_IRQ_edge( int gpio_nr, int edge_mask );
|
|
|
|
/*
|
|
* Handy routine to set GPIO alternate functions
|
|
*/
|
|
extern void set_GPIO_mode( int gpio_mode );
|
|
|
|
/*
|
|
* return current lclk frequency in units of 10kHz
|
|
*/
|
|
extern unsigned int get_lclk_frequency_10khz(void);
|
|
|
|
#endif
|
|
|
|
|
|
/*
|
|
* Implementation specifics
|
|
*/
|
|
|
|
#ifdef CONFIG_ARCH_LUBBOCK
|
|
#include "lubbock.h"
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARCH_PXA_IDP
|
|
#include "idp.h"
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARCH_PXA_CERF
|
|
#include "cerf.h"
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARCH_CSB226
|
|
#include "csb226.h"
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARCH_INNOKOM
|
|
#include "innokom.h"
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARCH_PLEB
|
|
#include "pleb.h"
|
|
#endif
|
|
|
|
#endif /* _ASM_ARCH_HARDWARE_H */
|