This patch changes Efika USB support code to use generic ULPI implementation instead of driver's own.
Signed-off-by: Jana Rapava fermata7@gmail.com Cc: Marek Vasut marek.vasut@gmail.com Cc: Remy Bohmer linux@bohmer.net Cc: Stefano Babic sbabic@denx.de Cc: Igor Grinberg grinberg@compulab.co.il --- board/efikamx/efikamx-usb.c | 105 +++++-------------------------------------- include/configs/efikamx.h | 1 + 2 files changed, 13 insertions(+), 93 deletions(-)
diff --git a/board/efikamx/efikamx-usb.c b/board/efikamx/efikamx-usb.c index 3b42256..2a0341f 100644 --- a/board/efikamx/efikamx-usb.c +++ b/board/efikamx/efikamx-usb.c @@ -205,104 +205,21 @@ void control_regs_setup(struct mx5_usb_control_regs *control) udelay(10000); }
-#define ULPI_ADDR_SHIFT 16 -#define ulpi_write_mask(value) ((value) & 0xff) -#define ulpi_read_mask(value) (((value) >> 8) & 0xff) - -int ulpi_wait(struct usb_ehci *ehci, u32 ulpi_value, u32 ulpi_mask) +void ulpi_set_flags(struct usb_ehci *ehci, struct ulpi_regs *ulpi) { - int timeout = ULPI_TIMEOUT; - u32 tmp; - - writel(ulpi_value, &ehci->ulpi_viewpoint); - - /* Wait for the bits in ulpi_mask to become zero. */ - while (--timeout) { - tmp = readl(&ehci->ulpi_viewpoint); - if (!(tmp & ulpi_mask)) - break; - WATCHDOG_RESET(); - } - - return !timeout; -} - -int ulpi_wakeup(struct usb_ehci *ehci) -{ - if (readl(&ehci->ulpi_viewpoint) & ULPI_SS) - return 0; /* already awake */ - return ulpi_wait(ehci, ULPI_WU, ULPI_WU); -} - -void ulpi_write(struct usb_ehci *ehci, u32 reg, u32 value) -{ - u32 tmp; - if (ulpi_wakeup(ehci)) { - printf("ULPI wakeup timed out\n"); - return; - } - - tmp = ulpi_wait(ehci, ULPI_RWRUN | ULPI_RWCTRL | - reg << ULPI_ADDR_SHIFT | ulpi_write_mask(value), ULPI_RWRUN); - if (tmp) - printf("ULPI write timed out\n"); -} - -u32 ulpi_read(struct usb_ehci *ehci, u32 reg) -{ - if (ulpi_wakeup(ehci)) { - printf("ULPI wakeup timed out\n"); - return 0; - } - - if (ulpi_wait(ehci, ULPI_RWRUN | reg << ULPI_ADDR_SHIFT, ULPI_RWRUN)) { - printf("ULPI read timed out\n"); - return 0; - } - - return ulpi_read_mask(readl(&ehci->ulpi_viewpoint)); -} - -void ulpi_init(struct usb_ehci *ehci, struct ulpi_regs *ulpi) -{ - u32 tmp = 0; - int reg, i; - - /* Assemble ID from four ULPI ID registers (8 bits each). */ - for (reg = ULPI_ID_REGS_COUNT - 1; reg >= 0; reg--) - tmp |= ulpi_read(ehci, reg) << (reg * 8); - - /* Split ID into vendor and product ID. */ - debug("Found ULPI TX, ID %04x:%04x\n", tmp >> 16, tmp & 0xffff); - - /* ULPI integrity check */ - for (i = 0; i < 2; i++) { - ulpi_write(ehci, (u32)&ulpi->scratch_write, - ULPI_TEST_VALUE << i); - tmp = ulpi_read(ehci, (u32)&ulpi->scratch_write); - - if (tmp != (ULPI_TEST_VALUE << i)) { - printf("ULPI integrity check failed\n"); - return; - } - } - - /* Set ULPI flags. */ - ulpi_write(ehci, (u32)&ulpi->otg_ctrl_write, - ULPI_OTG_EXTVBUSIND | + ulpi_otg_ctrl_flags(ehci, ulpi, WRITE, ULPI_OTG_EXTVBUSIND | ULPI_OTG_DM_PULLDOWN | ULPI_OTG_DP_PULLDOWN); - ulpi_write(ehci, (u32)&ulpi->function_ctrl_write, - ULPI_FC_XCVRSEL | ULPI_FC_OPMODE_NORMAL | - ULPI_FC_SUSPENDM); - ulpi_write(ehci, (u32)&ulpi->iface_ctrl_write, 0); - ulpi_write(ehci, (u32)&ulpi->otg_ctrl_set, - ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT); + ulpi_function_ctrl_flags(ehci, ulpi, WRITE, ULPI_FC_XCVRSEL | + ULPI_FC_OPMODE_NORMAL | ULPI_FC_SUSPENDM); + ulpi_iface_ctrl_flags(ehci, ulpi, WRITE, 0);
/* - * NOTE: This violates USB specification, but otherwise, USB on Efika - * doesn't charge VBUS and as a result, USB doesn't work. + * NOTE: Setting ULPI_OTG_CHRGVBUS violates USB specification, + * but otherwise, USB on Efika doesn't charge VBUS + * and as a result, USB doesn't work. */ - ulpi_write(ehci, (u32)&ulpi->otg_ctrl_set, ULPI_OTG_CHRGVBUS); + ulpi_otg_ctrl_flags(ehci, ulpi, SET, ULPI_OTG_DRVVBUS | + ULPI_OTG_DRVVBUS_EXT | ULPI_OTG_CHRGVBUS); }
/* @@ -353,6 +270,7 @@ void ehci1_init(struct usb_ehci *ehci, struct ulpi_regs *ulpi) udelay(10000);
ulpi_init(ehci, ulpi); + ulpi_set_flags(ehci, ulpi); }
void ehci2_init(struct usb_ehci *ehci, struct ulpi_regs *ulpi) @@ -372,6 +290,7 @@ void ehci2_init(struct usb_ehci *ehci, struct ulpi_regs *ulpi) udelay(10000);
ulpi_init(ehci, ulpi); + ulpi_set_flags(ehci, ulpi); }
int ehci_hcd_init(void) diff --git a/include/configs/efikamx.h b/include/configs/efikamx.h index 537a1e4..988236b 100644 --- a/include/configs/efikamx.h +++ b/include/configs/efikamx.h @@ -188,6 +188,7 @@ #define CONFIG_EHCI_IS_TDI #define CONFIG_USB_STORAGE #define CONFIG_USB_KEYBOARD +#define CONFIG_USB_ULPI #endif /* CONFIG_CMD_USB */
/*