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Diffstat (limited to 'arch/ppc/platforms/4xx/walnut.h')
-rw-r--r--arch/ppc/platforms/4xx/walnut.h67
1 files changed, 25 insertions, 42 deletions
diff --git a/arch/ppc/platforms/4xx/walnut.h b/arch/ppc/platforms/4xx/walnut.h
index 04cfbf3696b..dcf2691698c 100644
--- a/arch/ppc/platforms/4xx/walnut.h
+++ b/arch/ppc/platforms/4xx/walnut.h
@@ -1,72 +1,55 @@
/*
* arch/ppc/platforms/4xx/walnut.h
*
- * Macros, definitions, and data structures specific to the IBM PowerPC
- * 405GP "Walnut" evaluation board.
+ * Walnut board definitions
*
- * 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) 2005 DENX Software Engineering
+ * Stefan Roese <sr@denx.de>
*
- * Copyright (c) 1999 Grant Erickson <grant@lcse.umn.edu>
+ * Based on original work by
+ * Copyright (c) 1999 Grant Erickson <grant@lcse.umn.edu>
+ * Frank Rowand <frank_rowand@mvista.com>
+ * Debbie Chu <debbie_chu@mvista.com>
+ * 2000 (c) MontaVista, Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
*
- * 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 <linux/config.h>
#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
-
+#include <asm/ppcboot.h>
/* 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
+
+/* Flash */
+#define PPC40x_FPGA_BASE 0xF0300000
+#define PPC40x_FPGA_REG_OFFS 5 /* offset to flash map reg */
+#define PPC40x_FLASH_ONBD_N(x) (x & 0x02)
+#define PPC40x_FLASH_SRAM_SEL(x) (x & 0x01)
+#define PPC40x_FLASH_LOW 0xFFF00000
+#define PPC40x_FLASH_HIGH 0xFFF80000
+#define PPC40x_FLASH_SIZE 0x80000
+#define WALNUT_FPGA_BASE PPC40x_FPGA_BASE
#define PPC4xx_MACHINE_NAME "IBM Walnut"
-#endif /* !__ASSEMBLY__ */
#endif /* __ASM_WALNUT_H__ */
#endif /* __KERNEL__ */