79 lines
2.1 KiB
C
79 lines
2.1 KiB
C
/*
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* PMC551 PCI Mezzanine Ram Device
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*
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* Author:
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* Mark Ferrell
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* Copyright 1999,2000 Nortel Networks
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*
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* License:
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* As part of this driver was derrived from the slram.c driver it falls
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* under the same license, which is GNU General Public License v2
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*/
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#ifndef __MTD_PMC551_H__
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#define __MTD_PMC551_H__
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#include <linux/mtd/mtd.h>
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#define PMC551_VERSION \
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"Ramix PMC551 PCI Mezzanine Ram Driver. (C) 1999,2000 Nortel Networks.\n"
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/*
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* Our personal and private information
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*/
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struct mypriv {
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struct pci_dev *dev;
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u_char *start;
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u32 base_map0;
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u32 curr_map0;
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u32 asize;
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struct mtd_info *nextpmc551;
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};
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/*
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* Function Prototypes
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*/
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static int pmc551_erase(struct mtd_info *, struct erase_info *);
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static void pmc551_unpoint(struct mtd_info *, loff_t, size_t);
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static int pmc551_point(struct mtd_info *mtd, loff_t from, size_t len,
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size_t *retlen, void **virt, resource_size_t *phys);
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static int pmc551_read(struct mtd_info *, loff_t, size_t, size_t *, u_char *);
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static int pmc551_write(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
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/*
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* Define the PCI ID's if the kernel doesn't define them for us
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*/
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#ifndef PCI_VENDOR_ID_V3_SEMI
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#define PCI_VENDOR_ID_V3_SEMI 0x11b0
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#endif
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#ifndef PCI_DEVICE_ID_V3_SEMI_V370PDC
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#define PCI_DEVICE_ID_V3_SEMI_V370PDC 0x0200
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#endif
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#define PMC551_PCI_MEM_MAP0 0x50
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#define PMC551_PCI_MEM_MAP1 0x54
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#define PMC551_PCI_MEM_MAP_MAP_ADDR_MASK 0x3ff00000
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#define PMC551_PCI_MEM_MAP_APERTURE_MASK 0x000000f0
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#define PMC551_PCI_MEM_MAP_REG_EN 0x00000002
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#define PMC551_PCI_MEM_MAP_ENABLE 0x00000001
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#define PMC551_SDRAM_MA 0x60
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#define PMC551_SDRAM_CMD 0x62
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#define PMC551_DRAM_CFG 0x64
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#define PMC551_SYS_CTRL_REG 0x78
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#define PMC551_DRAM_BLK0 0x68
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#define PMC551_DRAM_BLK1 0x6c
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#define PMC551_DRAM_BLK2 0x70
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#define PMC551_DRAM_BLK3 0x74
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#define PMC551_DRAM_BLK_GET_SIZE(x) (524288<<((x>>4)&0x0f))
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#define PMC551_DRAM_BLK_SET_COL_MUX(x,v) (((x) & ~0x00007000) | (((v) & 0x7) << 12))
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#define PMC551_DRAM_BLK_SET_ROW_MUX(x,v) (((x) & ~0x00000f00) | (((v) & 0xf) << 8))
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#endif /* __MTD_PMC551_H__ */
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