spruce.h

一个2.4.21版本的嵌入式linux内核

/*
 * include/asm-ppc/platforms/spruce.h
 * 
 * Definitions for IBM Spruce reference board support
 *
 * Authors: Matt Porter and Johnnie Peters
 *          [e-mail]
 *          [e-mail]
 *
 * 2001 (c) MontaVista, Software, Inc.  This file is licensed under
 * the terms of the GNU General Public License version 2.  This program
 * is licensed "as is" without any warranty of any kind, whether express
 * or implied.
 */

#ifdef __KERNEL__
#ifndef __ASM_SPRUCE_H__
#define __ASM_SPRUCE_H__

#define SPRUCE_PCI_CONFIG_ADDR	0xfec00000
#define SPRUCE_PCI_CONFIG_DATA	0xfec00004

#define SPRUCE_PCI_PHY_IO_BASE	0xf8000000
#define SPRUCE_PCI_IO_BASE	SPRUCE_PCI_PHY_IO_BASE

#define SPRUCE_PCI_SYS_MEM_BASE	0x00000000

#define SPRUCE_PCI_LOWER_MEM	0x80000000
#define SPRUCE_PCI_UPPER_MEM	0x9fffffff
#define SPRUCE_PCI_LOWER_IO	0x00000000
#define SPRUCE_PCI_UPPER_IO	0x03ffffff

#define	SPRUCE_ISA_IO_BASE	SPRUCE_PCI_IO_BASE

#define SPRUCE_MEM_SIZE		0x04000000
#define SPRUCE_BUS_SPEED	66666667

#define SPRUCE_NVRAM_BASE_ADDR	0xff800000
#define SPRUCE_RTC_BASE_ADDR	SPRUCE_NVRAM_BASE_ADDR

#define KEYBOARD_IRQ    22
#define AUX_IRQ 	21

unsigned char spruce_read_keyb_data(void);
unsigned char spruce_read_keyb_status(void);

#define kbd_read_input  spruce_read_keyb_data
#define kbd_read_status spruce_read_keyb_status
#define kbd_write_output(val) *((unsigned char *)0xff810000) = (char)val
#define kbd_write_command(val) *((unsigned char *)0xff810001) = (char)val

/*
 * Serial port defines
 */ 
#define SPRUCE_FPGA_REG_A	0xff820000
#define SPRUCE_UARTCLK_33M	0x02
#define SPRUCE_UARTCLK_IS_33M(reg)	(reg & SPRUCE_UARTCLK_33M)

#define UART0_IO_BASE	0xff600300
#define UART1_IO_BASE	0xff600400

#define RS_TABLE_SIZE	2

#define SPRUCE_BAUD_33M	33000000/64
#define SPRUCE_BAUD_30M	30000000/64
#define BASE_BAUD	SPRUCE_BAUD_33M

#define UART0_INT	3
#define UART1_INT	4

#define STD_UART_OP(num)					\
	{ 0, BASE_BAUD, 0, UART##num##_INT,			\
		(ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST),	\
		iomem_base: UART##num##_IO_BASE,		\
		io_type: SERIAL_IO_MEM},

#define SERIAL_PORT_DFNS	\
	STD_UART_OP(0)		\
	STD_UART_OP(1)

#endif /* __ASM_SPRUCE_H__ */
#endif /* __KERNEL__ */