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/*
* 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__ */
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