em86xxapi.h

em86xx 完整启动程序,支持网络下载与串通下载

/*****************************************
 Copyright (c) 2002-2004
 Sigma Designs, Inc. All Rights Reserved
 Proprietary and Confidential
 *****************************************/

/* This file is part of the EM86XX boot loader */

/*
 * em86xxapi.h
 *
 * by Ho Lee 01/23/2002
 */

#ifndef __BOOTLOADER_EM86XXAPI_H
#define __BOOTLOADER_EM86XXAPI_H

//
// function prototypes
// 

int em86xx_init(void);

// Clock
unsigned long em86xx_getclock(void);
unsigned int em86xx_getclockmhz(void);
void em86xx_setclockmhz(int clock);

// Delay
void em86xx_usleep(int usec);
void em86xx_msleep(int msec);

// CPSR flag
unsigned int em86xx_saveflag_clif(void);
unsigned int em86xx_saveflag_clf(void);
unsigned int em86xx_saveflag_cli(void);
unsigned int em86xx_getflag(void);
void em86xx_restoreflag(unsigned int cpsr_reg);

// Cache
// clean : write dirty buffer (D cache only)
// invalidate : invalidate the contents of cache (I & D cache)
// flush : clean + invalidate
void em86xx_get_cache_state(int *picache, int *pdcache, int *pwriteback);
void em86xx_enable_cache(int icache, int dcache, int writeback);
void em86xx_clean_cache_data(void);
void em86xx_clean_cache_data_region(unsigned int from, unsigned int to);
void em86xx_invalidate_cache_instruction(void);
void em86xx_invalidate_cache_instruction_region(unsigned int from, unsigned int to);
void em86xx_invalidate_cache_data(void);
void em86xx_invalidate_cache_data_region(unsigned int from, unsigned int to);

void em86xx_flush_cache_all(void);
void em86xx_flush_cache_data(void);
void em86xx_flush_cache_data_region(unsigned int from, unsigned int to);

// Interrupt
void em86xx_irq_init(void);
void em86xx_mask_irq(unsigned int irq);
void em86xx_unmask_irq(unsigned int irq);
int em86xx_irq_status(unsigned int irq);
void em86xx_irq_wait(unsigned int irq);

// Interrupt handler
typedef void (*irq_handler_t)(int irq, void *pdata);
void em86xx_sti(void);
void em86xx_cli(void);
int em86xx_irqenabled(void);
void em86xx_request_irq(int irq, irq_handler_t handler, void *pdata);
void em86xx_free_irq(int irq);

// Fast Interrupt
void em86xx_fiq_init(void);
void em86xx_mask_fiq(unsigned int fiq);
void em86xx_unmask_fiq(unsigned int fiq);
int em86xx_fiq_status(unsigned int fiq);
void em86xx_fiq_wait(unsigned int fiq);

// Fast Interrupt handler
typedef void (*fiq_handler_t)(int fiq, void *pdata);
void em86xx_stf(void);
void em86xx_clf(void);
void em86xx_request_fiq(int fiq, fiq_handler_t handler, void *pdata);
void em86xx_free_fiq(int fiq);

// Switchbox (Host interface)
enum { 
#if defined(CONFIG_ARCH_MAMBO)
    SBOX_IDEFLASH = 2, SBOX_PCIMASTER, SBOX_PCISLAVE, SBOX_MAX = SBOX_PCISLAVE, 
#elif defined(CONFIG_ARCH_TANGO)
    SBOX_MBUS_W0 = 0, SBOX_MBUS_W1, SBOX_PCIMASTER, SBOX_PCISLAVE, 
    SBOX_CIPHER, SBOX_IDEFLASH, SBOX_IDEDVD, SBOX_SFLASH, SBOX_MAX = SBOX_SFLASH,
#else
#error Unknown Architecture
#endif
};

int em86xx_sbox_init(void);
void em86xx_sbox_reset(void);
int em86xx_sbox_setup(int if0, int if1);
int em86xx_sbox_connect(int iface);
void em86xx_sbox_disconnect(int port);

// MBUS interface
unsigned int em86xx_mbus_init(void);
unsigned int em86xx_mbus_alloc_dma(int sbox, int fromdev, unsigned int *pregbase, int *pirq);
void em86xx_mbus_free_dma(int port);
void em86xx_mbus_setup_dma_linear(unsigned int regbase, unsigned int addr, unsigned int count);
void em86xx_mbus_setup_dma_double(unsigned int regbase, unsigned int addr, unsigned int count, unsigned int addr2, unsigned int count2);
void em86xx_mbus_setup_dma_rectangle(unsigned int regbase, unsigned int addr, unsigned int horiz, unsigned int lines, int skip);
int em86xx_mbus_setup_dma(unsigned int regbase, unsigned int addr, unsigned int count);
void em86xx_mbus_wait(unsigned int regbase);

// PCI master
void em86xx_pcimaster_setup_read(unsigned int addr, unsigned int count);
void em86xx_pcimaster_start_read(int start);
void em86xx_pcimaster_setup_write(unsigned int addr, unsigned int count);
void em86xx_pcimaster_start_write(int start);

// GPIO
#define GPIO_INPUT  0
#define GPIO_OUTPUT 1

int em86xx_gpio_read(int gpio);
void em86xx_gpio_write(int gpio, int data);
void em86xx_gpio_setdirection(int gpio, int dir);

// Miscellaneous
unsigned int em86xx_random(void);

#ifdef CONFIG_ARCH_TANGO15
//i2c -- mac address
int hwi2c_write(unsigned long wr_addr, unsigned char subaddr, unsigned char *ptr, unsigned long n, unsigned long delay);
int hwi2c_read(unsigned long rd_addr, unsigned char subaddr, unsigned char *ptr, unsigned long size, unsigned long delay);
int hwi2c_write_no_subaddr(unsigned long wr_addr, unsigned char *ptr, unsigned long size, unsigned long delay);
int hwi2c_read_no_subaddr(unsigned long rd_addr, unsigned char *ptr, unsigned long size, unsigned long delay);
int mac_read(char *bufr);
#endif

#endif