diff options
Diffstat (limited to 'drivers/usb/musb/sunxi.c')
| -rw-r--r-- | drivers/usb/musb/sunxi.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/usb/musb/sunxi.c b/drivers/usb/musb/sunxi.c index df2f75eb9895..f9f6304ad854 100644 --- a/drivers/usb/musb/sunxi.c +++ b/drivers/usb/musb/sunxi.c @@ -73,6 +73,7 @@ #define SUNXI_MUSB_FL_PHY_ON 4 #define SUNXI_MUSB_FL_HAS_SRAM 5 #define SUNXI_MUSB_FL_HAS_RESET 6 +#define SUNXI_MUSB_FL_NO_CONFIGDATA 7 /* Our read/write methods need access and do not get passed in a musb ref :| */ static struct musb *sunxi_musb; @@ -370,6 +371,8 @@ static u32 sunxi_musb_busctl_offset(u8 epnum, u16 offset) static u8 sunxi_musb_readb(const void __iomem *addr, unsigned offset) { + struct sunxi_glue *glue; + if (addr == sunxi_musb->mregs) { /* generic control or fifo control reg access */ switch (offset) { @@ -392,6 +395,12 @@ static u8 sunxi_musb_readb(const void __iomem *addr, unsigned offset) case MUSB_RXFIFOSZ: return readb(addr + SUNXI_MUSB_RXFIFOSZ); case MUSB_CONFIGDATA + 0x10: /* See musb_read_configdata() */ + glue = dev_get_drvdata(sunxi_musb->controller->parent); + /* A33 saves a reg, and we get to hardcode this */ + if (test_bit(SUNXI_MUSB_FL_NO_CONFIGDATA, + &glue->flags)) + return 0xde; + return readb(addr + SUNXI_MUSB_CONFIGDATA); /* Offset for these is fixed by sunxi_musb_busctl_offset() */ case SUNXI_MUSB_TXFUNCADDR: @@ -643,6 +652,11 @@ static int sunxi_musb_probe(struct platform_device *pdev) if (of_device_is_compatible(np, "allwinner,sun6i-a31-musb")) set_bit(SUNXI_MUSB_FL_HAS_RESET, &glue->flags); + if (of_device_is_compatible(np, "allwinner,sun8i-a33-musb")) { + set_bit(SUNXI_MUSB_FL_HAS_RESET, &glue->flags); + set_bit(SUNXI_MUSB_FL_NO_CONFIGDATA, &glue->flags); + } + glue->clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(glue->clk)) { dev_err(&pdev->dev, "Error getting clock: %ld\n", @@ -723,6 +737,7 @@ static int sunxi_musb_remove(struct platform_device *pdev) static const struct of_device_id sunxi_musb_match[] = { { .compatible = "allwinner,sun4i-a10-musb", }, { .compatible = "allwinner,sun6i-a31-musb", }, + { .compatible = "allwinner,sun8i-a33-musb", }, {} }; |