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Diffstat (limited to 'arch/ppc/platforms/4xx/walnut.h')
| -rw-r--r-- | arch/ppc/platforms/4xx/walnut.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/arch/ppc/platforms/4xx/walnut.h b/arch/ppc/platforms/4xx/walnut.h new file mode 100644 index 000000000000..04cfbf3696b9 --- /dev/null +++ b/arch/ppc/platforms/4xx/walnut.h @@ -0,0 +1,72 @@ +/* + * 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__ */ |