Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 1 | /* |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 2 | * BRIEF MODULE DESCRIPTION |
| 3 | * AMD Alchemy Au1xxx IDE interface routines over the Static Bus |
| 4 | * |
| 5 | * Copyright (c) 2003-2005 AMD, Personal Connectivity Solutions |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify it under |
| 8 | * the terms of the GNU General Public License as published by the Free Software |
| 9 | * Foundation; either version 2 of the License, or (at your option) any later |
| 10 | * version. |
| 11 | * |
| 12 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, |
| 13 | * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| 14 | * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR |
| 15 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 16 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 17 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 18 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 19 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 20 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 21 | * POSSIBILITY OF SUCH DAMAGE. |
| 22 | * |
| 23 | * You should have received a copy of the GNU General Public License along with |
| 24 | * this program; if not, write to the Free Software Foundation, Inc., |
| 25 | * 675 Mass Ave, Cambridge, MA 02139, USA. |
| 26 | * |
| 27 | * Note: for more information, please refer "AMD Alchemy Au1200/Au1550 IDE |
| 28 | * Interface and Linux Device Driver" Application Note. |
| 29 | */ |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 30 | #include <linux/types.h> |
| 31 | #include <linux/module.h> |
| 32 | #include <linux/kernel.h> |
| 33 | #include <linux/delay.h> |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 34 | #include <linux/platform_device.h> |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 35 | #include <linux/init.h> |
| 36 | #include <linux/ide.h> |
Sergei Shtylyov | fabd3a2 | 2008-04-17 01:14:33 +0200 | [diff] [blame] | 37 | #include <linux/scatterlist.h> |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 38 | |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 39 | #include <asm/mach-au1x00/au1xxx.h> |
| 40 | #include <asm/mach-au1x00/au1xxx_dbdma.h> |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 41 | #include <asm/mach-au1x00/au1xxx_ide.h> |
| 42 | |
| 43 | #define DRV_NAME "au1200-ide" |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 44 | #define DRV_AUTHOR "Enrico Walther <enrico.walther@amd.com> / Pete Popov <ppopov@embeddedalley.com>" |
| 45 | |
Manuel Lauss | d4f07ae | 2011-08-18 11:11:58 +0200 | [diff] [blame] | 46 | #ifndef IDE_REG_SHIFT |
| 47 | #define IDE_REG_SHIFT 5 |
| 48 | #endif |
| 49 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 50 | /* enable the burstmode in the dbdma */ |
| 51 | #define IDE_AU1XXX_BURSTMODE 1 |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 52 | |
| 53 | static _auide_hwif auide_hwif; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 54 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 55 | #if defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA) |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 56 | |
Sergei Shtylyov | 985232e | 2009-03-31 20:15:27 +0200 | [diff] [blame] | 57 | static inline void auide_insw(unsigned long port, void *addr, u32 count) |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 58 | { |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 59 | _auide_hwif *ahwif = &auide_hwif; |
| 60 | chan_tab_t *ctp; |
| 61 | au1x_ddma_desc_t *dp; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 62 | |
Manuel Lauss | 963accb | 2009-10-13 20:22:35 +0200 | [diff] [blame] | 63 | if (!au1xxx_dbdma_put_dest(ahwif->rx_chan, virt_to_phys(addr), |
Manuel Lauss | ea071cc | 2009-10-13 20:22:34 +0200 | [diff] [blame] | 64 | count << 1, DDMA_FLAGS_NOIE)) { |
Harvey Harrison | eb63963 | 2008-04-26 22:25:20 +0200 | [diff] [blame] | 65 | printk(KERN_ERR "%s failed %d\n", __func__, __LINE__); |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 66 | return; |
| 67 | } |
| 68 | ctp = *((chan_tab_t **)ahwif->rx_chan); |
| 69 | dp = ctp->cur_ptr; |
| 70 | while (dp->dscr_cmd0 & DSCR_CMD0_V) |
| 71 | ; |
| 72 | ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 73 | } |
| 74 | |
Sergei Shtylyov | 985232e | 2009-03-31 20:15:27 +0200 | [diff] [blame] | 75 | static inline void auide_outsw(unsigned long port, void *addr, u32 count) |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 76 | { |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 77 | _auide_hwif *ahwif = &auide_hwif; |
| 78 | chan_tab_t *ctp; |
| 79 | au1x_ddma_desc_t *dp; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 80 | |
Manuel Lauss | 963accb | 2009-10-13 20:22:35 +0200 | [diff] [blame] | 81 | if (!au1xxx_dbdma_put_source(ahwif->tx_chan, virt_to_phys(addr), |
Manuel Lauss | ea071cc | 2009-10-13 20:22:34 +0200 | [diff] [blame] | 82 | count << 1, DDMA_FLAGS_NOIE)) { |
Harvey Harrison | eb63963 | 2008-04-26 22:25:20 +0200 | [diff] [blame] | 83 | printk(KERN_ERR "%s failed %d\n", __func__, __LINE__); |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 84 | return; |
| 85 | } |
| 86 | ctp = *((chan_tab_t **)ahwif->tx_chan); |
| 87 | dp = ctp->cur_ptr; |
| 88 | while (dp->dscr_cmd0 & DSCR_CMD0_V) |
| 89 | ; |
| 90 | ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp); |
| 91 | } |
| 92 | |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 93 | static void au1xxx_input_data(ide_drive_t *drive, struct ide_cmd *cmd, |
Bartlomiej Zolnierkiewicz | 70f91e0 | 2008-04-28 23:44:37 +0200 | [diff] [blame] | 94 | void *buf, unsigned int len) |
| 95 | { |
| 96 | auide_insw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2); |
| 97 | } |
| 98 | |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 99 | static void au1xxx_output_data(ide_drive_t *drive, struct ide_cmd *cmd, |
Bartlomiej Zolnierkiewicz | 70f91e0 | 2008-04-28 23:44:37 +0200 | [diff] [blame] | 100 | void *buf, unsigned int len) |
| 101 | { |
| 102 | auide_outsw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2); |
| 103 | } |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 104 | #endif |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 105 | |
Bartlomiej Zolnierkiewicz | e085b3c | 2010-01-19 01:44:41 -0800 | [diff] [blame] | 106 | static void au1xxx_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 107 | { |
Bartlomiej Zolnierkiewicz | 88b2b32 | 2007-10-13 17:47:51 +0200 | [diff] [blame] | 108 | int mem_sttime = 0, mem_stcfg = au_readl(MEM_STCFG2); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 109 | |
Bartlomiej Zolnierkiewicz | e085b3c | 2010-01-19 01:44:41 -0800 | [diff] [blame] | 110 | switch (drive->pio_mode - XFER_PIO_0) { |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 111 | case 0: |
| 112 | mem_sttime = SBC_IDE_TIMING(PIO0); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 113 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 114 | /* set configuration for RCS2# */ |
| 115 | mem_stcfg |= TS_MASK; |
| 116 | mem_stcfg &= ~TCSOE_MASK; |
| 117 | mem_stcfg &= ~TOECS_MASK; |
| 118 | mem_stcfg |= SBC_IDE_PIO0_TCSOE | SBC_IDE_PIO0_TOECS; |
| 119 | break; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 120 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 121 | case 1: |
| 122 | mem_sttime = SBC_IDE_TIMING(PIO1); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 123 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 124 | /* set configuration for RCS2# */ |
| 125 | mem_stcfg |= TS_MASK; |
| 126 | mem_stcfg &= ~TCSOE_MASK; |
| 127 | mem_stcfg &= ~TOECS_MASK; |
| 128 | mem_stcfg |= SBC_IDE_PIO1_TCSOE | SBC_IDE_PIO1_TOECS; |
| 129 | break; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 130 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 131 | case 2: |
| 132 | mem_sttime = SBC_IDE_TIMING(PIO2); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 133 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 134 | /* set configuration for RCS2# */ |
| 135 | mem_stcfg &= ~TS_MASK; |
| 136 | mem_stcfg &= ~TCSOE_MASK; |
| 137 | mem_stcfg &= ~TOECS_MASK; |
| 138 | mem_stcfg |= SBC_IDE_PIO2_TCSOE | SBC_IDE_PIO2_TOECS; |
| 139 | break; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 140 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 141 | case 3: |
| 142 | mem_sttime = SBC_IDE_TIMING(PIO3); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 143 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 144 | /* set configuration for RCS2# */ |
| 145 | mem_stcfg &= ~TS_MASK; |
| 146 | mem_stcfg &= ~TCSOE_MASK; |
| 147 | mem_stcfg &= ~TOECS_MASK; |
| 148 | mem_stcfg |= SBC_IDE_PIO3_TCSOE | SBC_IDE_PIO3_TOECS; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 149 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 150 | break; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 151 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 152 | case 4: |
| 153 | mem_sttime = SBC_IDE_TIMING(PIO4); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 154 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 155 | /* set configuration for RCS2# */ |
| 156 | mem_stcfg &= ~TS_MASK; |
| 157 | mem_stcfg &= ~TCSOE_MASK; |
| 158 | mem_stcfg &= ~TOECS_MASK; |
| 159 | mem_stcfg |= SBC_IDE_PIO4_TCSOE | SBC_IDE_PIO4_TOECS; |
| 160 | break; |
| 161 | } |
| 162 | |
| 163 | au_writel(mem_sttime,MEM_STTIME2); |
| 164 | au_writel(mem_stcfg,MEM_STCFG2); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 165 | } |
| 166 | |
Bartlomiej Zolnierkiewicz | 8776168 | 2010-01-19 01:45:29 -0800 | [diff] [blame] | 167 | static void auide_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 168 | { |
Bartlomiej Zolnierkiewicz | 88b2b32 | 2007-10-13 17:47:51 +0200 | [diff] [blame] | 169 | int mem_sttime = 0, mem_stcfg = au_readl(MEM_STCFG2); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 170 | |
Bartlomiej Zolnierkiewicz | 8776168 | 2010-01-19 01:45:29 -0800 | [diff] [blame] | 171 | switch (drive->dma_mode) { |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 172 | #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 173 | case XFER_MW_DMA_2: |
| 174 | mem_sttime = SBC_IDE_TIMING(MDMA2); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 175 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 176 | /* set configuration for RCS2# */ |
| 177 | mem_stcfg &= ~TS_MASK; |
| 178 | mem_stcfg &= ~TCSOE_MASK; |
| 179 | mem_stcfg &= ~TOECS_MASK; |
| 180 | mem_stcfg |= SBC_IDE_MDMA2_TCSOE | SBC_IDE_MDMA2_TOECS; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 181 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 182 | break; |
| 183 | case XFER_MW_DMA_1: |
| 184 | mem_sttime = SBC_IDE_TIMING(MDMA1); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 185 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 186 | /* set configuration for RCS2# */ |
| 187 | mem_stcfg &= ~TS_MASK; |
| 188 | mem_stcfg &= ~TCSOE_MASK; |
| 189 | mem_stcfg &= ~TOECS_MASK; |
| 190 | mem_stcfg |= SBC_IDE_MDMA1_TCSOE | SBC_IDE_MDMA1_TOECS; |
| 191 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 192 | break; |
| 193 | case XFER_MW_DMA_0: |
| 194 | mem_sttime = SBC_IDE_TIMING(MDMA0); |
| 195 | |
| 196 | /* set configuration for RCS2# */ |
| 197 | mem_stcfg |= TS_MASK; |
| 198 | mem_stcfg &= ~TCSOE_MASK; |
| 199 | mem_stcfg &= ~TOECS_MASK; |
| 200 | mem_stcfg |= SBC_IDE_MDMA0_TCSOE | SBC_IDE_MDMA0_TOECS; |
| 201 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 202 | break; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 203 | #endif |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 204 | } |
Bartlomiej Zolnierkiewicz | a523a17 | 2007-02-17 02:40:23 +0100 | [diff] [blame] | 205 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 206 | au_writel(mem_sttime,MEM_STTIME2); |
| 207 | au_writel(mem_stcfg,MEM_STCFG2); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 208 | } |
| 209 | |
| 210 | /* |
| 211 | * Multi-Word DMA + DbDMA functions |
| 212 | */ |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 213 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 214 | #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA |
Bartlomiej Zolnierkiewicz | 22981694 | 2009-03-27 12:46:46 +0100 | [diff] [blame] | 215 | static int auide_build_dmatable(ide_drive_t *drive, struct ide_cmd *cmd) |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 216 | { |
Bartlomiej Zolnierkiewicz | 898ec22 | 2009-01-06 17:20:52 +0100 | [diff] [blame] | 217 | ide_hwif_t *hwif = drive->hwif; |
Bartlomiej Zolnierkiewicz | a536f32 | 2008-07-16 20:33:40 +0200 | [diff] [blame] | 218 | _auide_hwif *ahwif = &auide_hwif; |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 219 | struct scatterlist *sg; |
Bartlomiej Zolnierkiewicz | 22981694 | 2009-03-27 12:46:46 +0100 | [diff] [blame] | 220 | int i = cmd->sg_nents, count = 0; |
| 221 | int iswrite = !!(cmd->tf_flags & IDE_TFLAG_WRITE); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 222 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 223 | /* Save for interrupt context */ |
| 224 | ahwif->drive = drive; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 225 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 226 | /* fill the descriptors */ |
| 227 | sg = hwif->sg_table; |
| 228 | while (i && sg_dma_len(sg)) { |
| 229 | u32 cur_addr; |
| 230 | u32 cur_len; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 231 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 232 | cur_addr = sg_dma_address(sg); |
| 233 | cur_len = sg_dma_len(sg); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 234 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 235 | while (cur_len) { |
| 236 | u32 flags = DDMA_FLAGS_NOIE; |
| 237 | unsigned int tc = (cur_len < 0xfe00)? cur_len: 0xfe00; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 238 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 239 | if (++count >= PRD_ENTRIES) { |
| 240 | printk(KERN_WARNING "%s: DMA table too small\n", |
| 241 | drive->name); |
Bartlomiej Zolnierkiewicz | 11998b3 | 2009-03-31 20:15:21 +0200 | [diff] [blame] | 242 | return 0; |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 243 | } |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 244 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 245 | /* Lets enable intr for the last descriptor only */ |
| 246 | if (1==i) |
| 247 | flags = DDMA_FLAGS_IE; |
| 248 | else |
| 249 | flags = DDMA_FLAGS_NOIE; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 250 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 251 | if (iswrite) { |
Manuel Lauss | ea071cc | 2009-10-13 20:22:34 +0200 | [diff] [blame] | 252 | if (!au1xxx_dbdma_put_source(ahwif->tx_chan, |
Manuel Lauss | 963accb | 2009-10-13 20:22:35 +0200 | [diff] [blame] | 253 | sg_phys(sg), tc, flags)) { |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 254 | printk(KERN_ERR "%s failed %d\n", |
Harvey Harrison | eb63963 | 2008-04-26 22:25:20 +0200 | [diff] [blame] | 255 | __func__, __LINE__); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 256 | } |
Manuel Lauss | ea071cc | 2009-10-13 20:22:34 +0200 | [diff] [blame] | 257 | } else { |
| 258 | if (!au1xxx_dbdma_put_dest(ahwif->rx_chan, |
Manuel Lauss | 963accb | 2009-10-13 20:22:35 +0200 | [diff] [blame] | 259 | sg_phys(sg), tc, flags)) { |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 260 | printk(KERN_ERR "%s failed %d\n", |
Harvey Harrison | eb63963 | 2008-04-26 22:25:20 +0200 | [diff] [blame] | 261 | __func__, __LINE__); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 262 | } |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 263 | } |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 264 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 265 | cur_addr += tc; |
| 266 | cur_len -= tc; |
| 267 | } |
Jens Axboe | 55c16a7 | 2007-07-25 08:13:56 +0200 | [diff] [blame] | 268 | sg = sg_next(sg); |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 269 | i--; |
| 270 | } |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 271 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 272 | if (count) |
| 273 | return 1; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 274 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 275 | return 0; /* revert to PIO for this request */ |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 276 | } |
| 277 | |
| 278 | static int auide_dma_end(ide_drive_t *drive) |
| 279 | { |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 280 | return 0; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 281 | } |
| 282 | |
| 283 | static void auide_dma_start(ide_drive_t *drive ) |
| 284 | { |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 285 | } |
| 286 | |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 287 | |
Bartlomiej Zolnierkiewicz | 22981694 | 2009-03-27 12:46:46 +0100 | [diff] [blame] | 288 | static int auide_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd) |
Bartlomiej Zolnierkiewicz | b65fac3 | 2009-01-06 17:20:50 +0100 | [diff] [blame] | 289 | { |
Bartlomiej Zolnierkiewicz | 11998b3 | 2009-03-31 20:15:21 +0200 | [diff] [blame] | 290 | if (auide_build_dmatable(drive, cmd) == 0) |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 291 | return 1; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 292 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 293 | return 0; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 294 | } |
| 295 | |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 296 | static int auide_dma_test_irq(ide_drive_t *drive) |
Bartlomiej Zolnierkiewicz | c67c216 | 2008-10-13 21:39:38 +0200 | [diff] [blame] | 297 | { |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 298 | /* If dbdma didn't execute the STOP command yet, the |
| 299 | * active bit is still set |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 300 | */ |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 301 | drive->waiting_for_dma++; |
| 302 | if (drive->waiting_for_dma >= DMA_WAIT_TIMEOUT) { |
Joe Perches | b1681c5 | 2010-02-03 18:44:44 -0800 | [diff] [blame] | 303 | printk(KERN_WARNING "%s: timeout waiting for ddma to complete\n", |
| 304 | drive->name); |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 305 | return 1; |
| 306 | } |
| 307 | udelay(10); |
| 308 | return 0; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 309 | } |
| 310 | |
Bartlomiej Zolnierkiewicz | 15ce926 | 2008-01-26 20:13:03 +0100 | [diff] [blame] | 311 | static void auide_dma_host_set(ide_drive_t *drive, int on) |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 312 | { |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 313 | } |
| 314 | |
Ralf Baechle | 53e62d3 | 2006-09-25 23:32:10 -0700 | [diff] [blame] | 315 | static void auide_ddma_tx_callback(int irq, void *param) |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 316 | { |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 317 | } |
| 318 | |
Ralf Baechle | 53e62d3 | 2006-09-25 23:32:10 -0700 | [diff] [blame] | 319 | static void auide_ddma_rx_callback(int irq, void *param) |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 320 | { |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 321 | } |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 322 | #endif /* end CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA */ |
| 323 | |
Manuel Lauss | d4f07ae | 2011-08-18 11:11:58 +0200 | [diff] [blame] | 324 | static void auide_init_dbdma_dev(dbdev_tab_t *dev, u32 dev_id, u32 tsize, |
| 325 | u32 devwidth, u32 flags, u32 regbase) |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 326 | { |
| 327 | dev->dev_id = dev_id; |
Manuel Lauss | d4f07ae | 2011-08-18 11:11:58 +0200 | [diff] [blame] | 328 | dev->dev_physaddr = CPHYSADDR(regbase); |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 329 | dev->dev_intlevel = 0; |
| 330 | dev->dev_intpolarity = 0; |
| 331 | dev->dev_tsize = tsize; |
| 332 | dev->dev_devwidth = devwidth; |
| 333 | dev->dev_flags = flags; |
| 334 | } |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 335 | |
Bartlomiej Zolnierkiewicz | 5e37bdc | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 336 | #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA |
Bartlomiej Zolnierkiewicz | f37afda | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 337 | static const struct ide_dma_ops au1xxx_dma_ops = { |
Bartlomiej Zolnierkiewicz | 5e37bdc | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 338 | .dma_host_set = auide_dma_host_set, |
| 339 | .dma_setup = auide_dma_setup, |
Bartlomiej Zolnierkiewicz | 5e37bdc | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 340 | .dma_start = auide_dma_start, |
| 341 | .dma_end = auide_dma_end, |
| 342 | .dma_test_irq = auide_dma_test_irq, |
Bartlomiej Zolnierkiewicz | de23ec9 | 2008-10-13 21:39:46 +0200 | [diff] [blame] | 343 | .dma_lost_irq = ide_dma_lost_irq, |
Bartlomiej Zolnierkiewicz | 5e37bdc | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 344 | }; |
| 345 | |
Bartlomiej Zolnierkiewicz | 8552865 | 2008-04-26 22:25:23 +0200 | [diff] [blame] | 346 | static int auide_ddma_init(ide_hwif_t *hwif, const struct ide_port_info *d) |
| 347 | { |
Bartlomiej Zolnierkiewicz | a536f32 | 2008-07-16 20:33:40 +0200 | [diff] [blame] | 348 | _auide_hwif *auide = &auide_hwif; |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 349 | dbdev_tab_t source_dev_tab, target_dev_tab; |
| 350 | u32 dev_id, tsize, devwidth, flags; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 351 | |
Manuel Lauss | d4f07ae | 2011-08-18 11:11:58 +0200 | [diff] [blame] | 352 | dev_id = hwif->ddma_id; |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 353 | |
Bartlomiej Zolnierkiewicz | f629b38 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 354 | tsize = 8; /* 1 */ |
| 355 | devwidth = 32; /* 16 */ |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 356 | |
| 357 | #ifdef IDE_AU1XXX_BURSTMODE |
| 358 | flags = DEV_FLAGS_SYNC | DEV_FLAGS_BURSTABLE; |
| 359 | #else |
| 360 | flags = DEV_FLAGS_SYNC; |
| 361 | #endif |
| 362 | |
| 363 | /* setup dev_tab for tx channel */ |
Manuel Lauss | d4f07ae | 2011-08-18 11:11:58 +0200 | [diff] [blame] | 364 | auide_init_dbdma_dev(&source_dev_tab, dev_id, tsize, devwidth, |
| 365 | DEV_FLAGS_OUT | flags, auide->regbase); |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 366 | auide->tx_dev_id = au1xxx_ddma_add_device( &source_dev_tab ); |
| 367 | |
Manuel Lauss | d4f07ae | 2011-08-18 11:11:58 +0200 | [diff] [blame] | 368 | auide_init_dbdma_dev(&source_dev_tab, dev_id, tsize, devwidth, |
| 369 | DEV_FLAGS_IN | flags, auide->regbase); |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 370 | auide->rx_dev_id = au1xxx_ddma_add_device( &source_dev_tab ); |
| 371 | |
| 372 | /* We also need to add a target device for the DMA */ |
Manuel Lauss | d4f07ae | 2011-08-18 11:11:58 +0200 | [diff] [blame] | 373 | auide_init_dbdma_dev(&target_dev_tab, (u32)DSCR_CMD0_ALWAYS, tsize, |
| 374 | devwidth, DEV_FLAGS_ANYUSE, auide->regbase); |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 375 | auide->target_dev_id = au1xxx_ddma_add_device(&target_dev_tab); |
| 376 | |
| 377 | /* Get a channel for TX */ |
| 378 | auide->tx_chan = au1xxx_dbdma_chan_alloc(auide->target_dev_id, |
| 379 | auide->tx_dev_id, |
| 380 | auide_ddma_tx_callback, |
| 381 | (void*)auide); |
| 382 | |
| 383 | /* Get a channel for RX */ |
| 384 | auide->rx_chan = au1xxx_dbdma_chan_alloc(auide->rx_dev_id, |
| 385 | auide->target_dev_id, |
| 386 | auide_ddma_rx_callback, |
| 387 | (void*)auide); |
| 388 | |
| 389 | auide->tx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->tx_chan, |
| 390 | NUM_DESCRIPTORS); |
| 391 | auide->rx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->rx_chan, |
| 392 | NUM_DESCRIPTORS); |
Bartlomiej Zolnierkiewicz | 2bbd57c | 2008-10-13 21:39:47 +0200 | [diff] [blame] | 393 | |
| 394 | /* FIXME: check return value */ |
| 395 | (void)ide_allocate_dma_engine(hwif); |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 396 | |
| 397 | au1xxx_dbdma_start( auide->tx_chan ); |
| 398 | au1xxx_dbdma_start( auide->rx_chan ); |
| 399 | |
| 400 | return 0; |
| 401 | } |
| 402 | #else |
Bartlomiej Zolnierkiewicz | 8552865 | 2008-04-26 22:25:23 +0200 | [diff] [blame] | 403 | static int auide_ddma_init(ide_hwif_t *hwif, const struct ide_port_info *d) |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 404 | { |
Bartlomiej Zolnierkiewicz | a536f32 | 2008-07-16 20:33:40 +0200 | [diff] [blame] | 405 | _auide_hwif *auide = &auide_hwif; |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 406 | dbdev_tab_t source_dev_tab; |
| 407 | int flags; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 408 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 409 | #ifdef IDE_AU1XXX_BURSTMODE |
| 410 | flags = DEV_FLAGS_SYNC | DEV_FLAGS_BURSTABLE; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 411 | #else |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 412 | flags = DEV_FLAGS_SYNC; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 413 | #endif |
| 414 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 415 | /* setup dev_tab for tx channel */ |
Manuel Lauss | d4f07ae | 2011-08-18 11:11:58 +0200 | [diff] [blame] | 416 | auide_init_dbdma_dev(&source_dev_tab, (u32)DSCR_CMD0_ALWAYS, 8, 32, |
| 417 | DEV_FLAGS_OUT | flags, auide->regbase); |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 418 | auide->tx_dev_id = au1xxx_ddma_add_device( &source_dev_tab ); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 419 | |
Manuel Lauss | d4f07ae | 2011-08-18 11:11:58 +0200 | [diff] [blame] | 420 | auide_init_dbdma_dev(&source_dev_tab, (u32)DSCR_CMD0_ALWAYS, 8, 32, |
| 421 | DEV_FLAGS_IN | flags, auide->regbase); |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 422 | auide->rx_dev_id = au1xxx_ddma_add_device( &source_dev_tab ); |
| 423 | |
| 424 | /* Get a channel for TX */ |
| 425 | auide->tx_chan = au1xxx_dbdma_chan_alloc(DSCR_CMD0_ALWAYS, |
| 426 | auide->tx_dev_id, |
| 427 | NULL, |
| 428 | (void*)auide); |
| 429 | |
| 430 | /* Get a channel for RX */ |
| 431 | auide->rx_chan = au1xxx_dbdma_chan_alloc(auide->rx_dev_id, |
| 432 | DSCR_CMD0_ALWAYS, |
| 433 | NULL, |
| 434 | (void*)auide); |
| 435 | |
| 436 | auide->tx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->tx_chan, |
| 437 | NUM_DESCRIPTORS); |
| 438 | auide->rx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->rx_chan, |
| 439 | NUM_DESCRIPTORS); |
| 440 | |
| 441 | au1xxx_dbdma_start( auide->tx_chan ); |
| 442 | au1xxx_dbdma_start( auide->rx_chan ); |
| 443 | |
| 444 | return 0; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 445 | } |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 446 | #endif |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 447 | |
Bartlomiej Zolnierkiewicz | 9f36d31 | 2009-05-17 19:12:25 +0200 | [diff] [blame] | 448 | static void auide_setup_ports(struct ide_hw *hw, _auide_hwif *ahwif) |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 449 | { |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 450 | int i; |
Bartlomiej Zolnierkiewicz | 4c3032d | 2008-04-27 15:38:32 +0200 | [diff] [blame] | 451 | unsigned long *ata_regs = hw->io_ports_array; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 452 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 453 | /* FIXME? */ |
Bartlomiej Zolnierkiewicz | 4c3032d | 2008-04-27 15:38:32 +0200 | [diff] [blame] | 454 | for (i = 0; i < 8; i++) |
Sergei Shtylyov | fcbd3b4 | 2008-04-28 19:54:38 +0400 | [diff] [blame] | 455 | *ata_regs++ = ahwif->regbase + (i << IDE_REG_SHIFT); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 456 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 457 | /* set the Alternative Status register */ |
Sergei Shtylyov | fcbd3b4 | 2008-04-28 19:54:38 +0400 | [diff] [blame] | 458 | *ata_regs = ahwif->regbase + (14 << IDE_REG_SHIFT); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 459 | } |
| 460 | |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 461 | #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA |
| 462 | static const struct ide_tp_ops au1xxx_tp_ops = { |
| 463 | .exec_command = ide_exec_command, |
| 464 | .read_status = ide_read_status, |
| 465 | .read_altstatus = ide_read_altstatus, |
Sergei Shtylyov | ecf3a31 | 2009-03-31 20:15:30 +0200 | [diff] [blame] | 466 | .write_devctl = ide_write_devctl, |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 467 | |
Sergei Shtylyov | abb596b | 2009-03-31 20:15:32 +0200 | [diff] [blame] | 468 | .dev_select = ide_dev_select, |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 469 | .tf_load = ide_tf_load, |
| 470 | .tf_read = ide_tf_read, |
| 471 | |
| 472 | .input_data = au1xxx_input_data, |
| 473 | .output_data = au1xxx_output_data, |
| 474 | }; |
| 475 | #endif |
| 476 | |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 477 | static const struct ide_port_ops au1xxx_port_ops = { |
| 478 | .set_pio_mode = au1xxx_set_pio_mode, |
| 479 | .set_dma_mode = auide_set_dma_mode, |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 480 | }; |
| 481 | |
Bartlomiej Zolnierkiewicz | c413b9b | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 482 | static const struct ide_port_info au1xxx_port_info = { |
Bartlomiej Zolnierkiewicz | 8552865 | 2008-04-26 22:25:23 +0200 | [diff] [blame] | 483 | .init_dma = auide_ddma_init, |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 484 | #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA |
| 485 | .tp_ops = &au1xxx_tp_ops, |
| 486 | #endif |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 487 | .port_ops = &au1xxx_port_ops, |
Bartlomiej Zolnierkiewicz | 5e37bdc | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 488 | #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA |
| 489 | .dma_ops = &au1xxx_dma_ops, |
| 490 | #endif |
Bartlomiej Zolnierkiewicz | c413b9b | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 491 | .host_flags = IDE_HFLAG_POST_SET_MODE | |
Bartlomiej Zolnierkiewicz | 807b90d | 2008-02-02 19:56:40 +0100 | [diff] [blame] | 492 | IDE_HFLAG_NO_IO_32BIT | |
Bartlomiej Zolnierkiewicz | c413b9b | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 493 | IDE_HFLAG_UNMASK_IRQS, |
| 494 | .pio_mask = ATA_PIO4, |
| 495 | #ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA |
| 496 | .mwdma_mask = ATA_MWDMA2, |
| 497 | #endif |
Bartlomiej Zolnierkiewicz | 29e52cf | 2009-05-17 19:12:22 +0200 | [diff] [blame] | 498 | .chipset = ide_au1xxx, |
Bartlomiej Zolnierkiewicz | c413b9b | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 499 | }; |
| 500 | |
Ming Lei | 7a192ec | 2009-02-06 23:40:12 +0800 | [diff] [blame] | 501 | static int au_ide_probe(struct platform_device *dev) |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 502 | { |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 503 | _auide_hwif *ahwif = &auide_hwif; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 504 | struct resource *res; |
Bartlomiej Zolnierkiewicz | 48c3c10 | 2008-07-23 19:55:57 +0200 | [diff] [blame] | 505 | struct ide_host *host; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 506 | int ret = 0; |
Bartlomiej Zolnierkiewicz | 9f36d31 | 2009-05-17 19:12:25 +0200 | [diff] [blame] | 507 | struct ide_hw hw, *hws[] = { &hw }; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 508 | |
| 509 | #if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA) |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 510 | char *mode = "MWDMA2"; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 511 | #elif defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA) |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 512 | char *mode = "PIO+DDMA(offload)"; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 513 | #endif |
| 514 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 515 | memset(&auide_hwif, 0, sizeof(_auide_hwif)); |
Ming Lei | 7a192ec | 2009-02-06 23:40:12 +0800 | [diff] [blame] | 516 | ahwif->irq = platform_get_irq(dev, 0); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 517 | |
Ming Lei | 7a192ec | 2009-02-06 23:40:12 +0800 | [diff] [blame] | 518 | res = platform_get_resource(dev, IORESOURCE_MEM, 0); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 519 | |
| 520 | if (res == NULL) { |
Ming Lei | 7a192ec | 2009-02-06 23:40:12 +0800 | [diff] [blame] | 521 | pr_debug("%s %d: no base address\n", DRV_NAME, dev->id); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 522 | ret = -ENODEV; |
| 523 | goto out; |
| 524 | } |
David Vrabel | 4894473 | 2006-01-19 17:56:29 +0000 | [diff] [blame] | 525 | if (ahwif->irq < 0) { |
Ming Lei | 7a192ec | 2009-02-06 23:40:12 +0800 | [diff] [blame] | 526 | pr_debug("%s %d: no IRQ\n", DRV_NAME, dev->id); |
David Vrabel | 4894473 | 2006-01-19 17:56:29 +0000 | [diff] [blame] | 527 | ret = -ENODEV; |
| 528 | goto out; |
| 529 | } |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 530 | |
H Hartley Sweeten | 4b7c723 | 2009-11-23 10:27:22 -0800 | [diff] [blame] | 531 | if (!request_mem_region(res->start, resource_size(res), dev->name)) { |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 532 | pr_debug("%s: request_mem_region failed\n", DRV_NAME); |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 533 | ret = -EBUSY; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 534 | goto out; |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 535 | } |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 536 | |
H Hartley Sweeten | 4b7c723 | 2009-11-23 10:27:22 -0800 | [diff] [blame] | 537 | ahwif->regbase = (u32)ioremap(res->start, resource_size(res)); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 538 | if (ahwif->regbase == 0) { |
| 539 | ret = -ENOMEM; |
| 540 | goto out; |
| 541 | } |
| 542 | |
Manuel Lauss | d4f07ae | 2011-08-18 11:11:58 +0200 | [diff] [blame] | 543 | res = platform_get_resource(dev, IORESOURCE_DMA, 0); |
| 544 | if (!res) { |
| 545 | pr_debug("%s: no DDMA ID resource\n", DRV_NAME); |
| 546 | ret = -ENODEV; |
| 547 | goto out; |
| 548 | } |
| 549 | ahwif->ddma_id = res->start; |
| 550 | |
Bartlomiej Zolnierkiewicz | 9239b33 | 2007-10-20 00:32:33 +0200 | [diff] [blame] | 551 | memset(&hw, 0, sizeof(hw)); |
| 552 | auide_setup_ports(&hw, ahwif); |
Bartlomiej Zolnierkiewicz | aa79a2f | 2008-01-26 20:13:08 +0100 | [diff] [blame] | 553 | hw.irq = ahwif->irq; |
Ming Lei | 7a192ec | 2009-02-06 23:40:12 +0800 | [diff] [blame] | 554 | hw.dev = &dev->dev; |
Bartlomiej Zolnierkiewicz | aa79a2f | 2008-01-26 20:13:08 +0100 | [diff] [blame] | 555 | |
Bartlomiej Zolnierkiewicz | dca3983 | 2009-05-17 19:12:24 +0200 | [diff] [blame] | 556 | ret = ide_host_add(&au1xxx_port_info, hws, 1, &host); |
Bartlomiej Zolnierkiewicz | 6f904d0 | 2008-07-23 19:55:57 +0200 | [diff] [blame] | 557 | if (ret) |
Bartlomiej Zolnierkiewicz | 48c3c10 | 2008-07-23 19:55:57 +0200 | [diff] [blame] | 558 | goto out; |
Bartlomiej Zolnierkiewicz | 5cbf79c | 2007-05-10 00:01:11 +0200 | [diff] [blame] | 559 | |
Bartlomiej Zolnierkiewicz | 48c3c10 | 2008-07-23 19:55:57 +0200 | [diff] [blame] | 560 | auide_hwif.hwif = host->ports[0]; |
Bartlomiej Zolnierkiewicz | 5cbf79c | 2007-05-10 00:01:11 +0200 | [diff] [blame] | 561 | |
Ming Lei | 7a192ec | 2009-02-06 23:40:12 +0800 | [diff] [blame] | 562 | platform_set_drvdata(dev, host); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 563 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 564 | printk(KERN_INFO "Au1xxx IDE(builtin) configured for %s\n", mode ); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 565 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 566 | out: |
| 567 | return ret; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 568 | } |
| 569 | |
Ming Lei | 7a192ec | 2009-02-06 23:40:12 +0800 | [diff] [blame] | 570 | static int au_ide_remove(struct platform_device *dev) |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 571 | { |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 572 | struct resource *res; |
Ming Lei | 7a192ec | 2009-02-06 23:40:12 +0800 | [diff] [blame] | 573 | struct ide_host *host = platform_get_drvdata(dev); |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 574 | _auide_hwif *ahwif = &auide_hwif; |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 575 | |
Bartlomiej Zolnierkiewicz | 48c3c10 | 2008-07-23 19:55:57 +0200 | [diff] [blame] | 576 | ide_host_remove(host); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 577 | |
| 578 | iounmap((void *)ahwif->regbase); |
| 579 | |
Ming Lei | 7a192ec | 2009-02-06 23:40:12 +0800 | [diff] [blame] | 580 | res = platform_get_resource(dev, IORESOURCE_MEM, 0); |
H Hartley Sweeten | 4b7c723 | 2009-11-23 10:27:22 -0800 | [diff] [blame] | 581 | release_mem_region(res->start, resource_size(res)); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 582 | |
| 583 | return 0; |
| 584 | } |
| 585 | |
Ming Lei | 7a192ec | 2009-02-06 23:40:12 +0800 | [diff] [blame] | 586 | static struct platform_driver au1200_ide_driver = { |
| 587 | .driver = { |
| 588 | .name = "au1200-ide", |
| 589 | .owner = THIS_MODULE, |
| 590 | }, |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 591 | .probe = au_ide_probe, |
| 592 | .remove = au_ide_remove, |
| 593 | }; |
| 594 | |
| 595 | static int __init au_ide_init(void) |
| 596 | { |
Ming Lei | 7a192ec | 2009-02-06 23:40:12 +0800 | [diff] [blame] | 597 | return platform_driver_register(&au1200_ide_driver); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 598 | } |
| 599 | |
Jordan Crouse | 8f29e65 | 2005-12-15 02:17:46 +0100 | [diff] [blame] | 600 | static void __exit au_ide_exit(void) |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 601 | { |
Ming Lei | 7a192ec | 2009-02-06 23:40:12 +0800 | [diff] [blame] | 602 | platform_driver_unregister(&au1200_ide_driver); |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 603 | } |
| 604 | |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 605 | MODULE_LICENSE("GPL"); |
| 606 | MODULE_DESCRIPTION("AU1200 IDE driver"); |
| 607 | |
| 608 | module_init(au_ide_init); |
| 609 | module_exit(au_ide_exit); |