| /* |
| * 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__ */ |
