1 /* 2 * PMC551 PCI Mezzanine Ram Device 3 * 4 * Author: 5 * Mark Ferrell 6 * Copyright 1999,2000 Nortel Networks 7 * 8 * License: 9 * As part of this driver was derrived from the slram.c driver it falls 10 * under the same license, which is GNU General Public License v2 11 */ 12 13 #ifndef __MTD_PMC551_H__ 14 #define __MTD_PMC551_H__ 15 16 #include <linux/mtd/mtd.h> 17 18 #define PMC551_VERSION \ 19 "Ramix PMC551 PCI Mezzanine Ram Driver. (C) 1999,2000 Nortel Networks.\n" 20 21 /* 22 * Our personal and private information 23 */ 24 struct mypriv { 25 struct pci_dev *dev; 26 u_char *start; 27 u32 base_map0; 28 u32 curr_map0; 29 u32 asize; 30 struct mtd_info *nextpmc551; 31 }; 32 33 /* 34 * Function Prototypes 35 */ 36 static int pmc551_erase(struct mtd_info *, struct erase_info *); 37 static void pmc551_unpoint(struct mtd_info *, loff_t, size_t); 38 static int pmc551_point(struct mtd_info *mtd, loff_t from, size_t len, 39 size_t *retlen, void **virt, resource_size_t *phys); 40 static int pmc551_read(struct mtd_info *, loff_t, size_t, size_t *, u_char *); 41 static int pmc551_write(struct mtd_info *, loff_t, size_t, size_t *, const u_char *); 42 43 44 /* 45 * Define the PCI ID's if the kernel doesn't define them for us 46 */ 47 #ifndef PCI_VENDOR_ID_V3_SEMI 48 #define PCI_VENDOR_ID_V3_SEMI 0x11b0 49 #endif 50 51 #ifndef PCI_DEVICE_ID_V3_SEMI_V370PDC 52 #define PCI_DEVICE_ID_V3_SEMI_V370PDC 0x0200 53 #endif 54 55 56 #define PMC551_PCI_MEM_MAP0 0x50 57 #define PMC551_PCI_MEM_MAP1 0x54 58 #define PMC551_PCI_MEM_MAP_MAP_ADDR_MASK 0x3ff00000 59 #define PMC551_PCI_MEM_MAP_APERTURE_MASK 0x000000f0 60 #define PMC551_PCI_MEM_MAP_REG_EN 0x00000002 61 #define PMC551_PCI_MEM_MAP_ENABLE 0x00000001 62 63 #define PMC551_SDRAM_MA 0x60 64 #define PMC551_SDRAM_CMD 0x62 65 #define PMC551_DRAM_CFG 0x64 66 #define PMC551_SYS_CTRL_REG 0x78 67 68 #define PMC551_DRAM_BLK0 0x68 69 #define PMC551_DRAM_BLK1 0x6c 70 #define PMC551_DRAM_BLK2 0x70 71 #define PMC551_DRAM_BLK3 0x74 72 #define PMC551_DRAM_BLK_GET_SIZE(x) (524288<<((x>>4)&0x0f)) 73 #define PMC551_DRAM_BLK_SET_COL_MUX(x,v) (((x) & ~0x00007000) | (((v) & 0x7) << 12)) 74 #define PMC551_DRAM_BLK_SET_ROW_MUX(x,v) (((x) & ~0x00000f00) | (((v) & 0xf) << 8)) 75 76 77 #endif /* __MTD_PMC551_H__ */ 78 79