release/src-rt-6.x.4708/linux/linux-2.6.36/arch/mips/include/asm/txx9/tx4927.h

   1 /*
   2  * Author: MontaVista Software, Inc.
   3  *         source@mvista.com
   4  *
   5  * Copyright 2001-2006 MontaVista Software Inc.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify it
   8  *  under the terms of the GNU General Public License as published by the
   9  *  Free Software Foundation; either version 2 of the License, or (at your
  10  *  option) any later version.
  11  *
  12  *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  13  *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  14  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  15  *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  16  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  17  *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  18  *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  19  *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  20  *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  21  *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  22  *
  23  *  You should have received a copy of the GNU General Public License along
  24  *  with this program; if not, write to the Free Software Foundation, Inc.,
  25  *  675 Mass Ave, Cambridge, MA 02139, USA.
  26  */
  27 #ifndef __ASM_TXX9_TX4927_H
  28 #define __ASM_TXX9_TX4927_H
  29
  30 #include <linux/types.h>
  31 #include <linux/io.h>
  32 #include <asm/txx9irq.h>
  33 #include <asm/txx9/tx4927pcic.h>
  34
  35 #ifdef CONFIG_64BIT
  36 #define TX4927_REG_BASE 0xffffffffff1f0000UL
  37 #else
  38 #define TX4927_REG_BASE 0xff1f0000UL
  39 #endif
  40 #define TX4927_REG_SIZE 0x00010000
  41
  42 #define TX4927_SDRAMC_REG       (TX4927_REG_BASE + 0x8000)
  43 #define TX4927_EBUSC_REG        (TX4927_REG_BASE + 0x9000)
  44 #define TX4927_DMA_REG          (TX4927_REG_BASE + 0xb000)
  45 #define TX4927_PCIC_REG         (TX4927_REG_BASE + 0xd000)
  46 #define TX4927_CCFG_REG         (TX4927_REG_BASE + 0xe000)
  47 #define TX4927_IRC_REG          (TX4927_REG_BASE + 0xf600)
  48 #define TX4927_NR_TMR   3
  49 #define TX4927_TMR_REG(ch)      (TX4927_REG_BASE + 0xf000 + (ch) * 0x100)
  50 #define TX4927_NR_SIO   2
  51 #define TX4927_SIO_REG(ch)      (TX4927_REG_BASE + 0xf300 + (ch) * 0x100)
  52 #define TX4927_PIO_REG          (TX4927_REG_BASE + 0xf500)
  53 #define TX4927_ACLC_REG         (TX4927_REG_BASE + 0xf700)
  54
  55 #define TX4927_IR_ECCERR        0
  56 #define TX4927_IR_WTOERR        1
  57 #define TX4927_NUM_IR_INT       6
  58 #define TX4927_IR_INT(n)        (2 + (n))
  59 #define TX4927_NUM_IR_SIO       2
  60 #define TX4927_IR_SIO(n)        (8 + (n))
  61 #define TX4927_NUM_IR_DMA       4
  62 #define TX4927_IR_DMA(n)        (10 + (n))
  63 #define TX4927_IR_PIO           14
  64 #define TX4927_IR_PDMAC         15
  65 #define TX4927_IR_PCIC          16
  66 #define TX4927_NUM_IR_TMR       3
  67 #define TX4927_IR_TMR(n)        (17 + (n))
  68 #define TX4927_IR_PCIERR        22
  69 #define TX4927_IR_PCIPME        23
  70 #define TX4927_IR_ACLC          24
  71 #define TX4927_IR_ACLCPME       25
  72 #define TX4927_NUM_IR   32
  73
  74 #define TX4927_IRC_INT  2       /* IP[2] in Status register */
  75
  76 #define TX4927_NUM_PIO  16
  77
  78 struct tx4927_sdramc_reg {
  79         u64 cr[4];
  80         u64 unused0[4];
  81         u64 tr;
  82         u64 unused1[2];
  83         u64 cmd;
  84 };
  85
  86 struct tx4927_ebusc_reg {
  87         u64 cr[8];
  88 };
  89
  90 struct tx4927_ccfg_reg {
  91         u64 ccfg;
  92         u64 crir;
  93         u64 pcfg;
  94         u64 toea;
  95         u64 clkctr;
  96         u64 unused0;
  97         u64 garbc;
  98         u64 unused1;
  99         u64 unused2;
 100         u64 ramp;
 101 };
 102
 103 /*
 104  * CCFG
 105  */
 106 /* CCFG : Chip Configuration */
 107 #define TX4927_CCFG_WDRST       0x0000020000000000ULL
 108 #define TX4927_CCFG_WDREXEN     0x0000010000000000ULL
 109 #define TX4927_CCFG_BCFG_MASK   0x000000ff00000000ULL
 110 #define TX4927_CCFG_TINTDIS     0x01000000
 111 #define TX4927_CCFG_PCI66       0x00800000
 112 #define TX4927_CCFG_PCIMODE     0x00400000
 113 #define TX4927_CCFG_DIVMODE_MASK        0x000e0000
 114 #define TX4927_CCFG_DIVMODE_8   (0x0 << 17)
 115 #define TX4927_CCFG_DIVMODE_12  (0x1 << 17)
 116 #define TX4927_CCFG_DIVMODE_16  (0x2 << 17)
 117 #define TX4927_CCFG_DIVMODE_10  (0x3 << 17)
 118 #define TX4927_CCFG_DIVMODE_2   (0x4 << 17)
 119 #define TX4927_CCFG_DIVMODE_3   (0x5 << 17)
 120 #define TX4927_CCFG_DIVMODE_4   (0x6 << 17)
 121 #define TX4927_CCFG_DIVMODE_2_5 (0x7 << 17)
 122 #define TX4927_CCFG_BEOW        0x00010000
 123 #define TX4927_CCFG_WR  0x00008000
 124 #define TX4927_CCFG_TOE 0x00004000
 125 #define TX4927_CCFG_PCIARB      0x00002000
 126 #define TX4927_CCFG_PCIDIVMODE_MASK     0x00001800
 127 #define TX4927_CCFG_PCIDIVMODE_2_5      0x00000000
 128 #define TX4927_CCFG_PCIDIVMODE_3        0x00000800
 129 #define TX4927_CCFG_PCIDIVMODE_5        0x00001000
 130 #define TX4927_CCFG_PCIDIVMODE_6        0x00001800
 131 #define TX4927_CCFG_SYSSP_MASK  0x000000c0
 132 #define TX4927_CCFG_ENDIAN      0x00000004
 133 #define TX4927_CCFG_HALT        0x00000002
 134 #define TX4927_CCFG_ACEHOLD     0x00000001
 135 #define TX4927_CCFG_W1CBITS     (TX4927_CCFG_WDRST | TX4927_CCFG_BEOW)
 136
 137 /* PCFG : Pin Configuration */
 138 #define TX4927_PCFG_SDCLKDLY_MASK       0x30000000
 139 #define TX4927_PCFG_SDCLKDLY(d) ((d)<<28)
 140 #define TX4927_PCFG_SYSCLKEN    0x08000000
 141 #define TX4927_PCFG_SDCLKEN_ALL 0x07800000
 142 #define TX4927_PCFG_SDCLKEN(ch) (0x00800000<<(ch))
 143 #define TX4927_PCFG_PCICLKEN_ALL        0x003f0000
 144 #define TX4927_PCFG_PCICLKEN(ch)        (0x00010000<<(ch))
 145 #define TX4927_PCFG_SEL2        0x00000200
 146 #define TX4927_PCFG_SEL1        0x00000100
 147 #define TX4927_PCFG_DMASEL_ALL  0x000000ff
 148 #define TX4927_PCFG_DMASEL0_MASK        0x00000003
 149 #define TX4927_PCFG_DMASEL1_MASK        0x0000000c
 150 #define TX4927_PCFG_DMASEL2_MASK        0x00000030
 151 #define TX4927_PCFG_DMASEL3_MASK        0x000000c0
 152 #define TX4927_PCFG_DMASEL0_DRQ0        0x00000000
 153 #define TX4927_PCFG_DMASEL0_SIO1        0x00000001
 154 #define TX4927_PCFG_DMASEL0_ACL0        0x00000002
 155 #define TX4927_PCFG_DMASEL0_ACL2        0x00000003
 156 #define TX4927_PCFG_DMASEL1_DRQ1        0x00000000
 157 #define TX4927_PCFG_DMASEL1_SIO1        0x00000004
 158 #define TX4927_PCFG_DMASEL1_ACL1        0x00000008
 159 #define TX4927_PCFG_DMASEL1_ACL3        0x0000000c
 160 #define TX4927_PCFG_DMASEL2_DRQ2        0x00000000      /* SEL2=0 */
 161 #define TX4927_PCFG_DMASEL2_SIO0        0x00000010      /* SEL2=0 */
 162 #define TX4927_PCFG_DMASEL2_ACL1        0x00000000      /* SEL2=1 */
 163 #define TX4927_PCFG_DMASEL2_ACL2        0x00000020      /* SEL2=1 */
 164 #define TX4927_PCFG_DMASEL2_ACL0        0x00000030      /* SEL2=1 */
 165 #define TX4927_PCFG_DMASEL3_DRQ3        0x00000000
 166 #define TX4927_PCFG_DMASEL3_SIO0        0x00000040
 167 #define TX4927_PCFG_DMASEL3_ACL3        0x00000080
 168 #define TX4927_PCFG_DMASEL3_ACL1        0x000000c0
 169
 170 /* CLKCTR : Clock Control */
 171 #define TX4927_CLKCTR_ACLCKD    0x02000000
 172 #define TX4927_CLKCTR_PIOCKD    0x01000000
 173 #define TX4927_CLKCTR_DMACKD    0x00800000
 174 #define TX4927_CLKCTR_PCICKD    0x00400000
 175 #define TX4927_CLKCTR_TM0CKD    0x00100000
 176 #define TX4927_CLKCTR_TM1CKD    0x00080000
 177 #define TX4927_CLKCTR_TM2CKD    0x00040000
 178 #define TX4927_CLKCTR_SIO0CKD   0x00020000
 179 #define TX4927_CLKCTR_SIO1CKD   0x00010000
 180 #define TX4927_CLKCTR_ACLRST    0x00000200
 181 #define TX4927_CLKCTR_PIORST    0x00000100
 182 #define TX4927_CLKCTR_DMARST    0x00000080
 183 #define TX4927_CLKCTR_PCIRST    0x00000040
 184 #define TX4927_CLKCTR_TM0RST    0x00000010
 185 #define TX4927_CLKCTR_TM1RST    0x00000008
 186 #define TX4927_CLKCTR_TM2RST    0x00000004
 187 #define TX4927_CLKCTR_SIO0RST   0x00000002
 188 #define TX4927_CLKCTR_SIO1RST   0x00000001
 189
 190 #define tx4927_sdramcptr \
 191                 ((struct tx4927_sdramc_reg __iomem *)TX4927_SDRAMC_REG)
 192 #define tx4927_pcicptr \
 193                 ((struct tx4927_pcic_reg __iomem *)TX4927_PCIC_REG)
 194 #define tx4927_ccfgptr \
 195                 ((struct tx4927_ccfg_reg __iomem *)TX4927_CCFG_REG)
 196 #define tx4927_ebuscptr \
 197                 ((struct tx4927_ebusc_reg __iomem *)TX4927_EBUSC_REG)
 198 #define tx4927_pioptr           ((struct txx9_pio_reg __iomem *)TX4927_PIO_REG)
 199
 200 #define TX4927_REV_PCODE()      \
 201         ((__u32)__raw_readq(&tx4927_ccfgptr->crir) >> 16)
 202
 203 #define TX4927_SDRAMC_CR(ch)    __raw_readq(&tx4927_sdramcptr->cr[(ch)])
 204 #define TX4927_SDRAMC_BA(ch)    ((TX4927_SDRAMC_CR(ch) >> 49) << 21)
 205 #define TX4927_SDRAMC_SIZE(ch)  \
 206         ((((TX4927_SDRAMC_CR(ch) >> 33) & 0x7fff) + 1) << 21)
 207
 208 #define TX4927_EBUSC_CR(ch)     __raw_readq(&tx4927_ebuscptr->cr[(ch)])
 209 #define TX4927_EBUSC_BA(ch)     ((TX4927_EBUSC_CR(ch) >> 48) << 20)
 210 #define TX4927_EBUSC_SIZE(ch)   \
 211         (0x00100000 << ((unsigned long)(TX4927_EBUSC_CR(ch) >> 8) & 0xf))
 212 #define TX4927_EBUSC_WIDTH(ch)  \
 213         (64 >> ((__u32)(TX4927_EBUSC_CR(ch) >> 20) & 0x3))
 214
 215 /* utilities */
 216 static inline void txx9_clear64(__u64 __iomem *adr, __u64 bits)
 217 {
 218 #ifdef CONFIG_32BIT
 219         unsigned long flags;
 220         local_irq_save(flags);
 221 #endif
 222         ____raw_writeq(____raw_readq(adr) & ~bits, adr);
 223 #ifdef CONFIG_32BIT
 224         local_irq_restore(flags);
 225 #endif
 226 }
 227 static inline void txx9_set64(__u64 __iomem *adr, __u64 bits)
 228 {
 229 #ifdef CONFIG_32BIT
 230         unsigned long flags;
 231         local_irq_save(flags);
 232 #endif
 233         ____raw_writeq(____raw_readq(adr) | bits, adr);
 234 #ifdef CONFIG_32BIT
 235         local_irq_restore(flags);
 236 #endif
 237 }
 238
 239 /* These functions are not interrupt safe. */
 240 static inline void tx4927_ccfg_clear(__u64 bits)
 241 {
 242         ____raw_writeq(____raw_readq(&tx4927_ccfgptr->ccfg)
 243                        & ~(TX4927_CCFG_W1CBITS | bits),
 244                        &tx4927_ccfgptr->ccfg);
 245 }
 246 static inline void tx4927_ccfg_set(__u64 bits)
 247 {
 248         ____raw_writeq((____raw_readq(&tx4927_ccfgptr->ccfg)
 249                         & ~TX4927_CCFG_W1CBITS) | bits,
 250                        &tx4927_ccfgptr->ccfg);
 251 }
 252 static inline void tx4927_ccfg_change(__u64 change, __u64 new)
 253 {
 254         ____raw_writeq((____raw_readq(&tx4927_ccfgptr->ccfg)
 255                         & ~(TX4927_CCFG_W1CBITS | change)) |
 256                        new,
 257                        &tx4927_ccfgptr->ccfg);
 258 }
 259
 260 unsigned int tx4927_get_mem_size(void);
 261 void tx4927_wdt_init(void);
 262 void tx4927_setup(void);
 263 void tx4927_time_init(unsigned int tmrnr);
 264 void tx4927_sio_init(unsigned int sclk, unsigned int cts_mask);
 265 int tx4927_report_pciclk(void);
 266 int tx4927_pciclk66_setup(void);
 267 void tx4927_setup_pcierr_irq(void);
 268 void tx4927_irq_init(void);
 269 void tx4927_mtd_init(int ch);
 270 void tx4927_dmac_init(int memcpy_chan);
 271 void tx4927_aclc_init(unsigned int dma_chan_out, unsigned int dma_chan_in);
 272
 273 #endif /* __ASM_TXX9_TX4927_H */