| Prafulla Wadaskar | 1fd6a9b | 2009-05-30 01:13:33 +0530 | [diff] [blame] | 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 */ |
| 31 | struct 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 | |
| Valentin Longchamp | db22ce7 | 2012-06-01 01:31:02 +0000 | [diff] [blame] | 40 | /* They are used to define CONFIG_SYS_KW_SPI_MPP |
| 41 | * each of the below #defines selects which mpp is |
| 42 | * configured for each SPI signal in spi_claim_bus |
| 43 | * bit 0: selects pin for MOSI (MPP1 if 0, MPP6 if 1) |
| 44 | * bit 1: selects pin for SCK (MPP2 if 0, MPP10 if 1) |
| 45 | * bit 2: selects pin for MISO (MPP3 if 0, MPP11 if 1) |
| 46 | */ |
| 47 | #define MOSI_MPP6 (1 << 0) |
| 48 | #define SCK_MPP10 (1 << 1) |
| 49 | #define MISO_MPP11 (1 << 2) |
| 50 | |
| Prafulla Wadaskar | 1fd6a9b | 2009-05-30 01:13:33 +0530 | [diff] [blame] | 51 | #define KWSPI_CLKPRESCL_MASK 0x1f |
| Valentin Longchamp | baddd9f | 2012-08-15 05:31:49 +0000 | [diff] [blame] | 52 | #define KWSPI_CLKPRESCL_MIN 0x12 |
| Prafulla Wadaskar | 1fd6a9b | 2009-05-30 01:13:33 +0530 | [diff] [blame] | 53 | #define KWSPI_CSN_ACT 1 /* Activates serial memory interface */ |
| 54 | #define KWSPI_SMEMRDY (1 << 1) /* SerMem Data xfer ready */ |
| 55 | #define KWSPI_IRQUNMASK 1 /* unmask SPI interrupt */ |
| 56 | #define KWSPI_IRQMASK 0 /* mask SPI interrupt */ |
| 57 | #define KWSPI_SMEMRDIRQ 1 /* SerMem data xfer ready irq */ |
| 58 | #define KWSPI_XFERLEN_1BYTE 0 |
| 59 | #define KWSPI_XFERLEN_2BYTE (1 << 5) |
| 60 | #define KWSPI_XFERLEN_MASK (1 << 5) |
| 61 | #define KWSPI_ADRLEN_1BYTE 0 |
| 62 | #define KWSPI_ADRLEN_2BYTE 1 << 8 |
| 63 | #define KWSPI_ADRLEN_3BYTE 2 << 8 |
| 64 | #define KWSPI_ADRLEN_4BYTE 3 << 8 |
| 65 | #define KWSPI_ADRLEN_MASK 3 << 8 |
| 66 | #define KWSPI_TIMEOUT 10000 |
| 67 | |
| 68 | #endif /* __KW_SPI_H__ */ |