include/linux/mfd/tmio.h

   1 #ifndef MFD_TMIO_H
   2 #define MFD_TMIO_H
   3
   4 #include <linux/device.h>
   5 #include <linux/fb.h>
   6 #include <linux/io.h>
   7 #include <linux/jiffies.h>
   8 #include <linux/platform_device.h>
   9 #include <linux/pm_runtime.h>
  10
  11 #define tmio_ioread8(addr) readb(addr)
  12 #define tmio_ioread16(addr) readw(addr)
  13 #define tmio_ioread16_rep(r, b, l) readsw(r, b, l)
  14 #define tmio_ioread32(addr) \
  15         (((u32) readw((addr))) | (((u32) readw((addr) + 2)) << 16))
  16
  17 #define tmio_iowrite8(val, addr) writeb((val), (addr))
  18 #define tmio_iowrite16(val, addr) writew((val), (addr))
  19 #define tmio_iowrite16_rep(r, b, l) writesw(r, b, l)
  20 #define tmio_iowrite32(val, addr) \
  21         do { \
  22         writew((val),       (addr)); \
  23         writew((val) >> 16, (addr) + 2); \
  24         } while (0)
  25
  26 #define CNF_CMD     0x04
  27 #define CNF_CTL_BASE   0x10
  28 #define CNF_INT_PIN  0x3d
  29 #define CNF_STOP_CLK_CTL 0x40
  30 #define CNF_GCLK_CTL 0x41
  31 #define CNF_SD_CLK_MODE 0x42
  32 #define CNF_PIN_STATUS 0x44
  33 #define CNF_PWR_CTL_1 0x48
  34 #define CNF_PWR_CTL_2 0x49
  35 #define CNF_PWR_CTL_3 0x4a
  36 #define CNF_CARD_DETECT_MODE 0x4c
  37 #define CNF_SD_SLOT 0x50
  38 #define CNF_EXT_GCLK_CTL_1 0xf0
  39 #define CNF_EXT_GCLK_CTL_2 0xf1
  40 #define CNF_EXT_GCLK_CTL_3 0xf9
  41 #define CNF_SD_LED_EN_1 0xfa
  42 #define CNF_SD_LED_EN_2 0xfe
  43
  44 #define   SDCREN 0x2   /* Enable access to MMC CTL regs. (flag in COMMAND_REG)*/
  45
  46 #define sd_config_write8(base, shift, reg, val) \
  47         tmio_iowrite8((val), (base) + ((reg) << (shift)))
  48 #define sd_config_write16(base, shift, reg, val) \
  49         tmio_iowrite16((val), (base) + ((reg) << (shift)))
  50 #define sd_config_write32(base, shift, reg, val) \
  51         do { \
  52                 tmio_iowrite16((val), (base) + ((reg) << (shift)));   \
  53                 tmio_iowrite16((val) >> 16, (base) + ((reg + 2) << (shift))); \
  54         } while (0)
  55
  56 /* tmio MMC platform flags */
  57 #define TMIO_MMC_WRPROTECT_DISABLE      (1 << 0)
  58 /*
  59  * Some controllers can support a 2-byte block size when the bus width
  60  * is configured in 4-bit mode.
  61  */
  62 #define TMIO_MMC_BLKSZ_2BYTES           (1 << 1)
  63 /*
  64  * Some controllers can support SDIO IRQ signalling.
  65  */
  66 #define TMIO_MMC_SDIO_IRQ               (1 << 2)
  67 /*
  68  * Some platforms can detect card insertion events with controller powered
  69  * down, using a GPIO IRQ, in which case they have to fill in cd_irq, cd_gpio,
  70  * and cd_flags fields of struct tmio_mmc_data.
  71  */
  72 #define TMIO_MMC_HAS_COLD_CD            (1 << 3)
  73 /*
  74  * Some controllers require waiting for the SD bus to become
  75  * idle before writing to some registers.
  76  */
  77 #define TMIO_MMC_HAS_IDLE_WAIT          (1 << 4)
  78 /*
  79  * A GPIO is used for card hotplug detection. We need an extra flag for this,
  80  * because 0 is a valid GPIO number too, and requiring users to specify
  81  * cd_gpio < 0 to disable GPIO hotplug would break backwards compatibility.
  82  */
  83 #define TMIO_MMC_USE_GPIO_CD            (1 << 5)
  84
  85 int tmio_core_mmc_enable(void __iomem *cnf, int shift, unsigned long base);
  86 int tmio_core_mmc_resume(void __iomem *cnf, int shift, unsigned long base);
  87 void tmio_core_mmc_pwr(void __iomem *cnf, int shift, int state);
  88 void tmio_core_mmc_clk_div(void __iomem *cnf, int shift, int state);
  89
  90 struct tmio_mmc_dma {
  91         void *chan_priv_tx;
  92         void *chan_priv_rx;
  93         int alignment_shift;
  94 };
  95
  96 struct tmio_mmc_host;
  97
  98 /*
  99  * data for the MMC controller
 100  */
 101 struct tmio_mmc_data {
 102         unsigned int                    hclk;
 103         unsigned long                   capabilities;
 104         unsigned long                   capabilities2;
 105         unsigned long                   flags;
 106         u32                             ocr_mask;       /* available voltages */
 107         struct tmio_mmc_dma             *dma;
 108         struct device                   *dev;
 109         unsigned int                    cd_gpio;
 110         void (*set_pwr)(struct platform_device *host, int state);
 111         void (*set_clk_div)(struct platform_device *host, int state);
 112         int (*get_cd)(struct platform_device *host);
 113         int (*write16_hook)(struct tmio_mmc_host *host, int addr);
 114         /* clock management callbacks */
 115         int (*clk_enable)(struct platform_device *pdev, unsigned int *f);
 116         void (*clk_disable)(struct platform_device *pdev);
 117 };
 118
 119 /*
 120  * This function is deprecated and will be removed soon. Please, convert your
 121  * platform to use drivers/mmc/core/cd-gpio.c
 122  */
 123 #include <linux/mmc/host.h>
 124 static inline void tmio_mmc_cd_wakeup(struct tmio_mmc_data *pdata)
 125 {
 126         if (pdata)
 127                 mmc_detect_change(dev_get_drvdata(pdata->dev),
 128                                   msecs_to_jiffies(100));
 129 }
 130
 131 /*
 132  * data for the NAND controller
 133  */
 134 struct tmio_nand_data {
 135         struct nand_bbt_descr   *badblock_pattern;
 136         struct mtd_partition    *partition;
 137         unsigned int            num_partitions;
 138 };
 139
 140 #define FBIO_TMIO_ACC_WRITE     0x7C639300
 141 #define FBIO_TMIO_ACC_SYNC      0x7C639301
 142
 143 struct tmio_fb_data {
 144         int                     (*lcd_set_power)(struct platform_device *fb_dev,
 145                                                                 bool on);
 146         int                     (*lcd_mode)(struct platform_device *fb_dev,
 147                                         const struct fb_videomode *mode);
 148         int                     num_modes;
 149         struct fb_videomode     *modes;
 150
 151         /* in mm: size of screen */
 152         int                     height;
 153         int                     width;
 154 };
 155
 156
 157 #endif