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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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ca6d1b1333
Use platform_data to pass musb configuration-specific details to musb driver. This patch will prevent that other platforms selecting HAVE_CLK and enabling musb won't break tree building. The other parts of it will come when linux-omap merge up more omap2/3 board-files. Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
99 lines
2.9 KiB
C
99 lines
2.9 KiB
C
/*
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* This is used to for host and peripheral modes of the driver for
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* Inventra (Multidrop) Highspeed Dual-Role Controllers: (M)HDRC.
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*
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* Board initialization should put one of these into dev->platform_data,
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* probably on some platform_device named "musb_hdrc". It encapsulates
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* key configuration differences between boards.
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*/
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/* The USB role is defined by the connector used on the board, so long as
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* standards are being followed. (Developer boards sometimes won't.)
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*/
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enum musb_mode {
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MUSB_UNDEFINED = 0,
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MUSB_HOST, /* A or Mini-A connector */
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MUSB_PERIPHERAL, /* B or Mini-B connector */
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MUSB_OTG /* Mini-AB connector */
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};
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struct clk;
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struct musb_hdrc_eps_bits {
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const char name[16];
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u8 bits;
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};
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struct musb_hdrc_config {
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/* MUSB configuration-specific details */
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unsigned multipoint:1; /* multipoint device */
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unsigned dyn_fifo:1; /* supports dynamic fifo sizing */
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unsigned soft_con:1; /* soft connect required */
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unsigned utm_16:1; /* utm data witdh is 16 bits */
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unsigned big_endian:1; /* true if CPU uses big-endian */
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unsigned mult_bulk_tx:1; /* Tx ep required for multbulk pkts */
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unsigned mult_bulk_rx:1; /* Rx ep required for multbulk pkts */
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unsigned high_iso_tx:1; /* Tx ep required for HB iso */
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unsigned high_iso_rx:1; /* Rx ep required for HD iso */
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unsigned dma:1; /* supports DMA */
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unsigned vendor_req:1; /* vendor registers required */
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u8 num_eps; /* number of endpoints _with_ ep0 */
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u8 dma_channels; /* number of dma channels */
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u8 dyn_fifo_size; /* dynamic size in bytes */
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u8 vendor_ctrl; /* vendor control reg width */
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u8 vendor_stat; /* vendor status reg witdh */
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u8 dma_req_chan; /* bitmask for required dma channels */
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u8 ram_bits; /* ram address size */
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struct musb_hdrc_eps_bits *eps_bits;
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};
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struct musb_hdrc_platform_data {
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/* MUSB_HOST, MUSB_PERIPHERAL, or MUSB_OTG */
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u8 mode;
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/* for clk_get() */
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const char *clock;
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/* (HOST or OTG) switch VBUS on/off */
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int (*set_vbus)(struct device *dev, int is_on);
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/* (HOST or OTG) mA/2 power supplied on (default = 8mA) */
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u8 power;
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/* (PERIPHERAL) mA/2 max power consumed (default = 100mA) */
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u8 min_power;
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/* (HOST or OTG) msec/2 after VBUS on till power good */
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u8 potpgt;
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/* Power the device on or off */
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int (*set_power)(int state);
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/* Turn device clock on or off */
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int (*set_clock)(struct clk *clock, int is_on);
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/* MUSB configuration-specific details */
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struct musb_hdrc_config *config;
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};
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/* TUSB 6010 support */
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#define TUSB6010_OSCCLK_60 16667 /* psec/clk @ 60.0 MHz */
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#define TUSB6010_REFCLK_24 41667 /* psec/clk @ 24.0 MHz XI */
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#define TUSB6010_REFCLK_19 52083 /* psec/clk @ 19.2 MHz CLKIN */
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#ifdef CONFIG_ARCH_OMAP2
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extern int __init tusb6010_setup_interface(
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struct musb_hdrc_platform_data *data,
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unsigned ps_refclk, unsigned waitpin,
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unsigned async_cs, unsigned sync_cs,
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unsigned irq, unsigned dmachan);
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extern int tusb6010_platform_retime(unsigned is_refclk);
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#endif /* OMAP2 */
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