linux/arch/mips/include/asm/txx9/tx4927.h
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   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
  78struct tx4927_sdramc_reg {
  79        u64 cr[4];
  80        u64 unused0[4];
  81        u64 tr;
  82        u64 unused1[2];
  83        u64 cmd;
  84};
  85
  86struct tx4927_ebusc_reg {
  87        u64 cr[8];
  88};
  89
  90struct 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 */
 216static 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}
 227static 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. */
 240static 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}
 246static 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}
 252static 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
 260unsigned int tx4927_get_mem_size(void);
 261void tx4927_wdt_init(void);
 262void tx4927_setup(void);
 263void tx4927_time_init(unsigned int tmrnr);
 264void tx4927_sio_init(unsigned int sclk, unsigned int cts_mask);
 265int tx4927_report_pciclk(void);
 266int tx4927_pciclk66_setup(void);
 267void tx4927_setup_pcierr_irq(void);
 268void tx4927_irq_init(void);
 269void tx4927_mtd_init(int ch);
 270void tx4927_dmac_init(int memcpy_chan);
 271void tx4927_aclc_init(unsigned int dma_chan_out, unsigned int dma_chan_in);
 272
 273#endif /* __ASM_TXX9_TX4927_H */
 274