We currently only have functions to read/modify registers. Add a function to write registers.
Signed-off-by: Sascha Hauer <[email protected]> --- drivers/usb/otg/ulpi.c | 17 +++++++++++++++++ include/usb/ulpi.h | 1 + 2 files changed, 18 insertions(+) diff --git a/drivers/usb/otg/ulpi.c b/drivers/usb/otg/ulpi.c index 61cbada..badb05b 100644 --- a/drivers/usb/otg/ulpi.c +++ b/drivers/usb/otg/ulpi.c @@ -111,6 +111,23 @@ int ulpi_clear(u8 bits, int reg, void __iomem *view) } EXPORT_SYMBOL(ulpi_clear); +int ulpi_write(u8 bits, int reg, void __iomem *view) +{ + int ret; + + writel((ULPIVW_RUN | ULPIVW_WRITE | + (reg << ULPIVW_ADDR_SHIFT) | + ((bits & ULPIVW_WDATA_MASK) << ULPIVW_WDATA_SHIFT)), + view); + + /* wait for completion */ + ret = ulpi_poll(view, ULPIVW_RUN); + if (ret < 0) + return ret; + return 0; +} +EXPORT_SYMBOL(ulpi_write); + struct ulpi_info { uint32_t id; char *name; diff --git a/include/usb/ulpi.h b/include/usb/ulpi.h index 542993c..7c868a5 100644 --- a/include/usb/ulpi.h +++ b/include/usb/ulpi.h @@ -1,6 +1,7 @@ #ifndef __MACH_ULPI_H #define __MACH_ULPI_H +int ulpi_write(u8 bits, int reg, void __iomem *view); int ulpi_set(u8 bits, int reg, void __iomem *view); int ulpi_clear(u8 bits, int reg, void __iomem *view); int ulpi_read(int reg, void __iomem *view); -- 1.7.10.4 _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
