1/* 2 * (C) Copyright 2009 3 * Marvell Semiconductor <www.marvell.com> 4 * Written-by: Prafulla Wadaskar <prafulla@marvell.com> 5 * 6 * Derived from drivers/spi/mpc8xxx_spi.c 7 * 8 * See file CREDITS for list of people who contributed to this 9 * project. 10 * 11 * This program is free software; you can redistribute it and/or 12 * modify it under the terms of the GNU General Public License as 13 * published by the Free Software Foundation; either version 2 of 14 * the License, or (at your option) any later version. 15 * 16 * This program is distributed in the hope that it will be useful, 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 * GNU General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program; if not, write to the Free Software 23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 24 * MA 02110-1301 USA 25 */ 26 27#ifndef __KW_SPI_H__ 28#define __KW_SPI_H__ 29 30/* SPI Registers on kirkwood SOC */ 31struct kwspi_registers { 32 u32 ctrl; /* 0x10600 */ 33 u32 cfg; /* 0x10604 */ 34 u32 dout; /* 0x10608 */ 35 u32 din; /* 0x1060c */ 36 u32 irq_cause; /* 0x10610 */ 37 u32 irq_mask; /* 0x10614 */ 38}; 39 40#define KWSPI_CLKPRESCL_MASK 0x1f 41#define KWSPI_CSN_ACT 1 /* Activates serial memory interface */ 42#define KWSPI_SMEMRDY (1 << 1) /* SerMem Data xfer ready */ 43#define KWSPI_IRQUNMASK 1 /* unmask SPI interrupt */ 44#define KWSPI_IRQMASK 0 /* mask SPI interrupt */ 45#define KWSPI_SMEMRDIRQ 1 /* SerMem data xfer ready irq */ 46#define KWSPI_XFERLEN_1BYTE 0 47#define KWSPI_XFERLEN_2BYTE (1 << 5) 48#define KWSPI_XFERLEN_MASK (1 << 5) 49#define KWSPI_ADRLEN_1BYTE 0 50#define KWSPI_ADRLEN_2BYTE 1 << 8 51#define KWSPI_ADRLEN_3BYTE 2 << 8 52#define KWSPI_ADRLEN_4BYTE 3 << 8 53#define KWSPI_ADRLEN_MASK 3 << 8 54#define KWSPI_TIMEOUT 10000 55 56#endif /* __KW_SPI_H__ */ 57