2 * include/asm-mips/mach-au1x00/au1xxx_ide.h version 01.30.00 Aug. 02 2005
4 * BRIEF MODULE DESCRIPTION
5 * AMD Alchemy Au1xxx IDE interface routines over the Static Bus
7 * Copyright (c) 2003-2005 AMD, Personal Connectivity Solutions
9 * This program is free software; you can redistribute it and/or modify it under
10 * the terms of the GNU General Public License as published by the Free Software
11 * Foundation; either version 2 of the License, or (at your option) any later
14 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
15 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
16 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
23 * POSSIBILITY OF SUCH DAMAGE.
25 * You should have received a copy of the GNU General Public License along with
26 * this program; if not, write to the Free Software Foundation, Inc.,
27 * 675 Mass Ave, Cambridge, MA 02139, USA.
29 * Note: for more information, please refer "AMD Alchemy Au1200/Au1550 IDE
30 * Interface and Linux Device Driver" Application Note.
33 #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
34 #define DMA_WAIT_TIMEOUT 100
35 #define NUM_DESCRIPTORS PRD_ENTRIES
36 #else /* CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA */
37 #define NUM_DESCRIPTORS 2
40 #ifndef AU1XXX_ATA_RQSIZE
41 #define AU1XXX_ATA_RQSIZE 128
44 /* Disable Burstable-Support for DBDMA */
45 #ifndef CONFIG_BLK_DEV_IDE_AU1XXX_BURSTABLE_ON
46 #define CONFIG_BLK_DEV_IDE_AU1XXX_BURSTABLE_ON 0
51 * This will enable the device to be powered up when write() or read()
52 * is called. If this is not defined, the driver will return -EBUSY.
54 #define WAKE_ON_ACCESS 1
57 spinlock_t lock; /* Used to block on state transitions */
58 au1xxx_power_dev_t *dev; /* Power Managers device structure */
59 unsigned stopped; /* Used to signal device is stopped */
64 u32 tx_dev_id, rx_dev_id, target_dev_id;
66 void *tx_desc_head, *rx_desc_head;
68 #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
70 struct dbdma_cmd *dma_table_cpu;
71 dma_addr_t dma_table_dma;
80 /******************************************************************************/
81 /* PIO Mode timing calculation : */
83 /* Static Bus Spec ATA Spec */
88 /* Tcsoff = t2i | t2 */
93 /******************************************************************************/
95 #define TCSOE_MASK (0x07 << 29)
96 #define TOECS_MASK (0x07 << 26)
97 #define TWCS_MASK (0x07 << 28)
98 #define TCSH_MASK (0x0F << 24)
99 #define TCSOFF_MASK (0x07 << 20)
100 #define TWP_MASK (0x3F << 14)
101 #define TCSW_MASK (0x0F << 10)
102 #define TPM_MASK (0x0F << 6)
103 #define TA_MASK (0x3F << 0)
104 #define TS_MASK (1 << 8)
106 /* Timing parameters PIO mode 0 */
107 #define SBC_IDE_PIO0_TCSOE (0x04 << 29)
108 #define SBC_IDE_PIO0_TOECS (0x01 << 26)
109 #define SBC_IDE_PIO0_TWCS (0x02 << 28)
110 #define SBC_IDE_PIO0_TCSH (0x08 << 24)
111 #define SBC_IDE_PIO0_TCSOFF (0x07 << 20)
112 #define SBC_IDE_PIO0_TWP (0x10 << 14)
113 #define SBC_IDE_PIO0_TCSW (0x04 << 10)
114 #define SBC_IDE_PIO0_TPM (0x00 << 6)
115 #define SBC_IDE_PIO0_TA (0x15 << 0)
116 /* Timing parameters PIO mode 1 */
117 #define SBC_IDE_PIO1_TCSOE (0x03 << 29)
118 #define SBC_IDE_PIO1_TOECS (0x01 << 26)
119 #define SBC_IDE_PIO1_TWCS (0x01 << 28)
120 #define SBC_IDE_PIO1_TCSH (0x06 << 24)
121 #define SBC_IDE_PIO1_TCSOFF (0x06 << 20)
122 #define SBC_IDE_PIO1_TWP (0x08 << 14)
123 #define SBC_IDE_PIO1_TCSW (0x03 << 10)
124 #define SBC_IDE_PIO1_TPM (0x00 << 6)
125 #define SBC_IDE_PIO1_TA (0x0B << 0)
126 /* Timing parameters PIO mode 2 */
127 #define SBC_IDE_PIO2_TCSOE (0x05 << 29)
128 #define SBC_IDE_PIO2_TOECS (0x01 << 26)
129 #define SBC_IDE_PIO2_TWCS (0x01 << 28)
130 #define SBC_IDE_PIO2_TCSH (0x07 << 24)
131 #define SBC_IDE_PIO2_TCSOFF (0x07 << 20)
132 #define SBC_IDE_PIO2_TWP (0x1F << 14)
133 #define SBC_IDE_PIO2_TCSW (0x05 << 10)
134 #define SBC_IDE_PIO2_TPM (0x00 << 6)
135 #define SBC_IDE_PIO2_TA (0x22 << 0)
136 /* Timing parameters PIO mode 3 */
137 #define SBC_IDE_PIO3_TCSOE (0x05 << 29)
138 #define SBC_IDE_PIO3_TOECS (0x01 << 26)
139 #define SBC_IDE_PIO3_TWCS (0x01 << 28)
140 #define SBC_IDE_PIO3_TCSH (0x0D << 24)
141 #define SBC_IDE_PIO3_TCSOFF (0x0D << 20)
142 #define SBC_IDE_PIO3_TWP (0x15 << 14)
143 #define SBC_IDE_PIO3_TCSW (0x05 << 10)
144 #define SBC_IDE_PIO3_TPM (0x00 << 6)
145 #define SBC_IDE_PIO3_TA (0x1A << 0)
146 /* Timing parameters PIO mode 4 */
147 #define SBC_IDE_PIO4_TCSOE (0x04 << 29)
148 #define SBC_IDE_PIO4_TOECS (0x01 << 26)
149 #define SBC_IDE_PIO4_TWCS (0x01 << 28)
150 #define SBC_IDE_PIO4_TCSH (0x04 << 24)
151 #define SBC_IDE_PIO4_TCSOFF (0x04 << 20)
152 #define SBC_IDE_PIO4_TWP (0x0D << 14)
153 #define SBC_IDE_PIO4_TCSW (0x03 << 10)
154 #define SBC_IDE_PIO4_TPM (0x00 << 6)
155 #define SBC_IDE_PIO4_TA (0x12 << 0)
156 /* Timing parameters MDMA mode 0 */
157 #define SBC_IDE_MDMA0_TCSOE (0x03 << 29)
158 #define SBC_IDE_MDMA0_TOECS (0x01 << 26)
159 #define SBC_IDE_MDMA0_TWCS (0x01 << 28)
160 #define SBC_IDE_MDMA0_TCSH (0x07 << 24)
161 #define SBC_IDE_MDMA0_TCSOFF (0x07 << 20)
162 #define SBC_IDE_MDMA0_TWP (0x0C << 14)
163 #define SBC_IDE_MDMA0_TCSW (0x03 << 10)
164 #define SBC_IDE_MDMA0_TPM (0x00 << 6)
165 #define SBC_IDE_MDMA0_TA (0x0F << 0)
166 /* Timing parameters MDMA mode 1 */
167 #define SBC_IDE_MDMA1_TCSOE (0x05 << 29)
168 #define SBC_IDE_MDMA1_TOECS (0x01 << 26)
169 #define SBC_IDE_MDMA1_TWCS (0x01 << 28)
170 #define SBC_IDE_MDMA1_TCSH (0x05 << 24)
171 #define SBC_IDE_MDMA1_TCSOFF (0x05 << 20)
172 #define SBC_IDE_MDMA1_TWP (0x0F << 14)
173 #define SBC_IDE_MDMA1_TCSW (0x05 << 10)
174 #define SBC_IDE_MDMA1_TPM (0x00 << 6)
175 #define SBC_IDE_MDMA1_TA (0x15 << 0)
176 /* Timing parameters MDMA mode 2 */
177 #define SBC_IDE_MDMA2_TCSOE (0x04 << 29)
178 #define SBC_IDE_MDMA2_TOECS (0x01 << 26)
179 #define SBC_IDE_MDMA2_TWCS (0x01 << 28)
180 #define SBC_IDE_MDMA2_TCSH (0x04 << 24)
181 #define SBC_IDE_MDMA2_TCSOFF (0x04 << 20)
182 #define SBC_IDE_MDMA2_TWP (0x0D << 14)
183 #define SBC_IDE_MDMA2_TCSW (0x04 << 10)
184 #define SBC_IDE_MDMA2_TPM (0x00 << 6)
185 #define SBC_IDE_MDMA2_TA (0x12 << 0)
187 #define SBC_IDE_TIMING(mode) \
188 (SBC_IDE_##mode##_TWCS | \
189 SBC_IDE_##mode##_TCSH | \
190 SBC_IDE_##mode##_TCSOFF | \
191 SBC_IDE_##mode##_TWP | \
192 SBC_IDE_##mode##_TCSW | \
193 SBC_IDE_##mode##_TPM | \