mirror of https://gitee.com/openkylin/linux.git
73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
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/*
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* arch/ppc/platforms/4xx/walnut.h
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*
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* Macros, definitions, and data structures specific to the IBM PowerPC
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* 405GP "Walnut" evaluation board.
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*
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* Authors: Grant Erickson <grant@lcse.umn.edu>, Frank Rowand
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* <frank_rowand@mvista.com>, Debbie Chu <debbie_chu@mvista.com> or
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* source@mvista.com
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*
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* Copyright (c) 1999 Grant Erickson <grant@lcse.umn.edu>
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*
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* 2000 (c) MontaVista, Software, Inc. This file is licensed under
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* the terms of the GNU General Public License version 2. This program
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* is licensed "as is" without any warranty of any kind, whether express
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* or implied.
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*/
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#ifdef __KERNEL__
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#ifndef __ASM_WALNUT_H__
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#define __ASM_WALNUT_H__
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/* We have a 405GP core */
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#include <platforms/4xx/ibm405gp.h>
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#ifndef __ASSEMBLY__
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/*
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* Data structure defining board information maintained by the boot
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* ROM on IBM's "Walnut" evaluation board. An effort has been made to
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* keep the field names consistent with the 8xx 'bd_t' board info
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* structures.
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*/
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typedef struct board_info {
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unsigned char bi_s_version[4]; /* Version of this structure */
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unsigned char bi_r_version[30]; /* Version of the IBM ROM */
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unsigned int bi_memsize; /* DRAM installed, in bytes */
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unsigned char bi_enetaddr[6]; /* Local Ethernet MAC address */
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unsigned char bi_pci_enetaddr[6]; /* PCI Ethernet MAC address */
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unsigned int bi_intfreq; /* Processor speed, in Hz */
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unsigned int bi_busfreq; /* PLB Bus speed, in Hz */
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unsigned int bi_pci_busfreq; /* PCI Bus speed, in Hz */
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} bd_t;
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/* Some 4xx parts use a different timebase frequency from the internal clock.
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*/
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#define bi_tbfreq bi_intfreq
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/* Memory map for the IBM "Walnut" 405GP evaluation board.
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* Generic 4xx plus RTC.
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*/
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extern void *walnut_rtc_base;
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#define WALNUT_RTC_PADDR ((uint)0xf0000000)
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#define WALNUT_RTC_VADDR WALNUT_RTC_PADDR
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#define WALNUT_RTC_SIZE ((uint)8*1024)
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#ifdef CONFIG_PPC405GP_INTERNAL_CLOCK
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#define BASE_BAUD 201600
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#else
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#define BASE_BAUD 691200
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#endif
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#define WALNUT_PS2_BASE 0xF0100000
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#define WALNUT_FPGA_BASE 0xF0300000
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#define PPC4xx_MACHINE_NAME "IBM Walnut"
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#endif /* !__ASSEMBLY__ */
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#endif /* __ASM_WALNUT_H__ */
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#endif /* __KERNEL__ */
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