From 6a1644c52ac8af4696356db04894245f5a0e3dc3 Mon Sep 17 00:00:00 2001 From: Cástor Muñoz Date: Sun, 31 Jul 2016 03:52:22 +0200 Subject: as3525v2: use the new USB DesignWare driver Targets: sansaclipplus, samsaclipv2, sansaclipzip, sansafuzev2. Change-Id: I7773528a4e26707dd33fe9cb8948750d49570701 --- firmware/target/arm/as3525/usb-as3525.c | 69 +++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) (limited to 'firmware/target/arm/as3525/usb-as3525.c') diff --git a/firmware/target/arm/as3525/usb-as3525.c b/firmware/target/arm/as3525/usb-as3525.c index 4e63054f46..d798d4da83 100644 --- a/firmware/target/arm/as3525/usb-as3525.c +++ b/firmware/target/arm/as3525/usb-as3525.c @@ -27,6 +27,26 @@ #include "power.h" #include "as3525.h" #include "usb_drv.h" +#if CONFIG_USBOTG == USBOTG_DESIGNWARE +#include "usb-designware.h" + +const struct usb_dw_config usb_dw_config = +{ + .phytype = DWC_PHYTYPE_UTMI_16, + + /* Available FIFO memory: 0x535 words */ + .rx_fifosz = 0x215, + .nptx_fifosz = 0x20, /* 1 dedicated FIFO for IN0 */ + .ptx_fifosz = 0x100, /* 3 dedicated FIFOs for IN1,IN3,IN5 */ + +#ifdef USB_DW_ARCH_SLAVE + .disable_double_buffering = false, +#else + .ahb_burst_len = HBSTLEN_INCR8, + .ahb_threshold = 8, +#endif +}; +#endif /* USBOTG_DESIGNWARE */ static int usb_status = USB_EXTRACTED; @@ -68,4 +88,53 @@ int usb_detect(void) void usb_init_device(void) { +#if CONFIG_USBOTG == USBOTG_DESIGNWARE + /* Power up the core clocks to allow writing + to some registers needed to power it down */ + usb_dw_target_disable_irq(); + usb_dw_target_enable_clocks(); + + usb_drv_exit(); +} + +void usb_dw_target_enable_clocks() +{ + bitset32(&CGU_PERI, CGU_USB_CLOCK_ENABLE); + CCU_USB = (CCU_USB & ~(3<<24)) | (1 << 24); /* ?? */ + /* PHY clock */ + CGU_USB = 1<<5 /* enable */ + | 0 << 2 + | 0; /* source = ? (24MHz crystal?) */ + + /* Do something that is probably CCU related but undocumented*/ + CCU_USB |= 0x1000; + CCU_USB &= ~0x300000; + + udelay(400); +} + +void usb_dw_target_disable_clocks() +{ + CGU_USB = 0; + bitclr32(&CGU_PERI, CGU_USB_CLOCK_ENABLE); + + /* reset USB_PHY to prevent power consumption */ + CCU_SRC = CCU_SRC_USB_PHY_EN; + CCU_SRL = CCU_SRL_MAGIC_NUMBER; + CCU_SRL = 0; +} + +void usb_dw_target_enable_irq() +{ + VIC_INT_ENABLE = INTERRUPT_USB; +} + +void usb_dw_target_disable_irq() +{ + VIC_INT_EN_CLEAR = INTERRUPT_USB; +} + +void usb_dw_target_clear_irq() +{ +#endif /* USBOTG_DESIGNWARE */ } -- cgit v1.2.3