| Leo (Hao) Chen | 266dead | 2009-10-09 19:13:08 -0700 | [diff] [blame] | 1 | /***************************************************************************** |
| 2 | * Copyright 2001 - 2008 Broadcom Corporation. All rights reserved. |
| 3 | * |
| 4 | * Unless you and Broadcom execute a separate written software license |
| 5 | * agreement governing use of this software, this software is licensed to you |
| 6 | * under the terms of the GNU General Public License version 2, available at |
| 7 | * http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). |
| 8 | * |
| 9 | * Notwithstanding the above, under no circumstances may you combine this |
| 10 | * software in any way with any other Broadcom software provided under a |
| 11 | * license other than the GPL, without Broadcom's express prior written |
| 12 | * consent. |
| 13 | *****************************************************************************/ |
| 14 | |
| 15 | /* |
| 16 | * |
| 17 | ***************************************************************************** |
| 18 | * |
| 19 | * REG_NAND.h |
| 20 | * |
| 21 | * PURPOSE: |
| 22 | * |
| 23 | * This file contains definitions for the nand registers: |
| 24 | * |
| 25 | * NOTES: |
| 26 | * |
| 27 | *****************************************************************************/ |
| 28 | |
| 29 | #if !defined(__ASM_ARCH_REG_NAND_H) |
| 30 | #define __ASM_ARCH_REG_NAND_H |
| 31 | |
| 32 | /* ---- Include Files ---------------------------------------------------- */ |
| 33 | #include <csp/reg.h> |
| 34 | #include <mach/reg_umi.h> |
| 35 | |
| 36 | /* ---- Constants and Types ---------------------------------------------- */ |
| 37 | |
| 38 | #define HW_NAND_BASE MM_IO_BASE_NAND /* NAND Flash */ |
| 39 | |
| 40 | /* DMA accesses by the bootstrap need hard nonvirtual addresses */ |
| 41 | #define REG_NAND_CMD __REG16(HW_NAND_BASE + 0) |
| 42 | #define REG_NAND_ADDR __REG16(HW_NAND_BASE + 4) |
| 43 | |
| 44 | #define REG_NAND_PHYS_DATA16 (HW_NAND_BASE + 8) |
| 45 | #define REG_NAND_PHYS_DATA8 (HW_NAND_BASE + 8) |
| 46 | #define REG_NAND_DATA16 __REG16(REG_NAND_PHYS_DATA16) |
| 47 | #define REG_NAND_DATA8 __REG8(REG_NAND_PHYS_DATA8) |
| 48 | |
| 49 | /* use appropriate offset to make sure it start at the 1K boundary */ |
| 50 | #define REG_NAND_PHYS_DATA_DMA (HW_NAND_BASE + 0x400) |
| 51 | #define REG_NAND_DATA_DMA __REG32(REG_NAND_PHYS_DATA_DMA) |
| 52 | |
| 53 | /* Linux DMA requires physical address of the data register */ |
| 54 | #define REG_NAND_DATA16_PADDR HW_IO_VIRT_TO_PHYS(REG_NAND_PHYS_DATA16) |
| 55 | #define REG_NAND_DATA8_PADDR HW_IO_VIRT_TO_PHYS(REG_NAND_PHYS_DATA8) |
| 56 | #define REG_NAND_DATA_PADDR HW_IO_VIRT_TO_PHYS(REG_NAND_PHYS_DATA_DMA) |
| 57 | |
| 58 | #define NAND_BUS_16BIT() (0) |
| 59 | #define NAND_BUS_8BIT() (!NAND_BUS_16BIT()) |
| 60 | |
| 61 | /* Register offsets */ |
| 62 | #define REG_NAND_CMD_OFFSET (0) |
| 63 | #define REG_NAND_ADDR_OFFSET (4) |
| 64 | #define REG_NAND_DATA8_OFFSET (8) |
| 65 | |
| 66 | #endif |
