73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
|
/*
|
||
|
|
* arch/ppc/platforms/4xx/walnut.h
|
||
|
|
*
|
||
|
|
* Macros, definitions, and data structures specific to the IBM PowerPC
|
||
|
|
* 405GP "Walnut" evaluation board.
|
||
|
|
*
|
||
|
|
* Authors: Grant Erickson <grant@lcse.umn.edu>, Frank Rowand
|
||
|
|
* <frank_rowand@mvista.com>, Debbie Chu <debbie_chu@mvista.com> or
|
||
|
|
* source@mvista.com
|
||
|
|
*
|
||
|
|
* Copyright (c) 1999 Grant Erickson <grant@lcse.umn.edu>
|
||
|
|
*
|
||
|
|
* 2000 (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_WALNUT_H__
|
||
|
|
#define __ASM_WALNUT_H__
|
||
|
|
|
||
|
|
/* We have a 405GP core */
|
||
|
|
#include <platforms/4xx/ibm405gp.h>
|
||
|
|
|
||
|
|
#ifndef __ASSEMBLY__
|
||
|
|
/*
|
||
|
|
* Data structure defining board information maintained by the boot
|
||
|
|
* ROM on IBM's "Walnut" evaluation board. An effort has been made to
|
||
|
|
* keep the field names consistent with the 8xx 'bd_t' board info
|
||
|
|
* structures.
|
||
|
|
*/
|
||
|
|
|
||
|
|
typedef struct board_info {
|
||
|
|
unsigned char bi_s_version[4]; /* Version of this structure */
|
||
|
|
unsigned char bi_r_version[30]; /* Version of the IBM ROM */
|
||
|
|
unsigned int bi_memsize; /* DRAM installed, in bytes */
|
||
|
|
unsigned char bi_enetaddr[6]; /* Local Ethernet MAC address */
|
||
|
|
unsigned char bi_pci_enetaddr[6]; /* PCI Ethernet MAC address */
|
||
|
|
unsigned int bi_intfreq; /* Processor speed, in Hz */
|
||
|
|
unsigned int bi_busfreq; /* PLB Bus speed, in Hz */
|
||
|
|
unsigned int bi_pci_busfreq; /* PCI Bus speed, in Hz */
|
||
|
|
} bd_t;
|
||
|
|
|
||
|
|
/* Some 4xx parts use a different timebase frequency from the internal clock.
|
||
|
|
*/
|
||
|
|
#define bi_tbfreq bi_intfreq
|
||
|
|
|
||
|
|
|
||
|
|
/* Memory map for the IBM "Walnut" 405GP evaluation board.
|
||
|
|
* Generic 4xx plus RTC.
|
||
|
|
*/
|
||
|
|
|
||
|
|
extern void *walnut_rtc_base;
|
||
|
|
#define WALNUT_RTC_PADDR ((uint)0xf0000000)
|
||
|
|
#define WALNUT_RTC_VADDR WALNUT_RTC_PADDR
|
||
|
|
#define WALNUT_RTC_SIZE ((uint)8*1024)
|
||
|
|
|
||
|
|
#ifdef CONFIG_PPC405GP_INTERNAL_CLOCK
|
||
|
|
#define BASE_BAUD 201600
|
||
|
|
#else
|
||
|
|
#define BASE_BAUD 691200
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define WALNUT_PS2_BASE 0xF0100000
|
||
|
|
#define WALNUT_FPGA_BASE 0xF0300000
|
||
|
|
|
||
|
|
#define PPC4xx_MACHINE_NAME "IBM Walnut"
|
||
|
|
|
||
|
|
#endif /* !__ASSEMBLY__ */
|
||
|
|
#endif /* __ASM_WALNUT_H__ */
|
||
|
|
#endif /* __KERNEL__ */
|