diff options
Diffstat (limited to 'include/linux/mfd/tmio.h')
| -rw-r--r-- | include/linux/mfd/tmio.h | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h new file mode 100644 index 000000000..27264fe4b --- /dev/null +++ b/include/linux/mfd/tmio.h @@ -0,0 +1,139 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef MFD_TMIO_H +#define MFD_TMIO_H + +#include <linux/device.h> +#include <linux/fb.h> +#include <linux/io.h> +#include <linux/jiffies.h> +#include <linux/mmc/card.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> + +#define tmio_ioread8(addr) readb(addr) +#define tmio_ioread16(addr) readw(addr) +#define tmio_ioread16_rep(r, b, l) readsw(r, b, l) +#define tmio_ioread32(addr) \ + (((u32)readw((addr))) | (((u32)readw((addr) + 2)) << 16)) + +#define tmio_iowrite8(val, addr) writeb((val), (addr)) +#define tmio_iowrite16(val, addr) writew((val), (addr)) +#define tmio_iowrite16_rep(r, b, l) writesw(r, b, l) +#define tmio_iowrite32(val, addr) \ + do { \ + writew((val), (addr)); \ + writew((val) >> 16, (addr) + 2); \ + } while (0) + +#define sd_config_write8(base, shift, reg, val) \ + tmio_iowrite8((val), (base) + ((reg) << (shift))) +#define sd_config_write16(base, shift, reg, val) \ + tmio_iowrite16((val), (base) + ((reg) << (shift))) +#define sd_config_write32(base, shift, reg, val) \ + do { \ + tmio_iowrite16((val), (base) + ((reg) << (shift))); \ + tmio_iowrite16((val) >> 16, (base) + ((reg + 2) << (shift))); \ + } while (0) + +/* tmio MMC platform flags */ +/* + * Some controllers can support a 2-byte block size when the bus width + * is configured in 4-bit mode. + */ +#define TMIO_MMC_BLKSZ_2BYTES BIT(1) +/* + * Some controllers can support SDIO IRQ signalling. + */ +#define TMIO_MMC_SDIO_IRQ BIT(2) + +/* Some features are only available or tested on R-Car Gen2 or later */ +#define TMIO_MMC_MIN_RCAR2 BIT(3) + +/* + * Some controllers require waiting for the SD bus to become + * idle before writing to some registers. + */ +#define TMIO_MMC_HAS_IDLE_WAIT BIT(4) + +/* + * Use the busy timeout feature. Probably all TMIO versions support it. Yet, + * we don't have documentation for old variants, so we enable only known good + * variants with this flag. Can be removed once all variants are known good. + */ +#define TMIO_MMC_USE_BUSY_TIMEOUT BIT(5) + +/* + * Some controllers have CMD12 automatically + * issue/non-issue register + */ +#define TMIO_MMC_HAVE_CMD12_CTRL BIT(7) + +/* Controller has some SDIO status bits which must be 1 */ +#define TMIO_MMC_SDIO_STATUS_SETBITS BIT(8) + +/* + * Some controllers have a 32-bit wide data port register + */ +#define TMIO_MMC_32BIT_DATA_PORT BIT(9) + +/* + * Some controllers allows to set SDx actual clock + */ +#define TMIO_MMC_CLK_ACTUAL BIT(10) + +/* Some controllers have a CBSY bit */ +#define TMIO_MMC_HAVE_CBSY BIT(11) + +int tmio_core_mmc_enable(void __iomem *cnf, int shift, unsigned long base); +int tmio_core_mmc_resume(void __iomem *cnf, int shift, unsigned long base); +void tmio_core_mmc_pwr(void __iomem *cnf, int shift, int state); +void tmio_core_mmc_clk_div(void __iomem *cnf, int shift, int state); + +struct dma_chan; + +/* + * data for the MMC controller + */ +struct tmio_mmc_data { + void *chan_priv_tx; + void *chan_priv_rx; + unsigned int hclk; + unsigned long capabilities; + unsigned long capabilities2; + unsigned long flags; + u32 ocr_mask; /* available voltages */ + int alignment_shift; + dma_addr_t dma_rx_offset; + unsigned int max_blk_count; + unsigned short max_segs; + void (*set_pwr)(struct platform_device *host, int state); + void (*set_clk_div)(struct platform_device *host, int state); +}; + +/* + * data for the NAND controller + */ +struct tmio_nand_data { + struct nand_bbt_descr *badblock_pattern; + struct mtd_partition *partition; + unsigned int num_partitions; + const char *const *part_parsers; +}; + +#define FBIO_TMIO_ACC_WRITE 0x7C639300 +#define FBIO_TMIO_ACC_SYNC 0x7C639301 + +struct tmio_fb_data { + int (*lcd_set_power)(struct platform_device *fb_dev, + bool on); + int (*lcd_mode)(struct platform_device *fb_dev, + const struct fb_videomode *mode); + int num_modes; + struct fb_videomode *modes; + + /* in mm: size of screen */ + int height; + int width; +}; + +#endif |