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Allwinner USB DRD support (musb_otg)

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Allwinner USB DRD is based on the Mentor USB OTG controller, with a
different register layout and a few missing registers.

The code is by Andrew Turner (andrew).

Reviewed by:	hselasky, manu
Obtained from:	andrew
MFC after:	5 weeks
Differential Revision: https://reviews.freebsd.org/D5881
This commit is contained in:
Andriy Gapon 2020-09-07 06:39:00 +00:00
parent 6305020526
commit d9a65ba85b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=365398
4 changed files with 26 additions and 0 deletions
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23
sys/arm/allwinner/aw_usbphy.c
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@ -169,6 +169,18 @@ DEFINE_CLASS_1(awusbphy_phynode, awusbphy_phynode_class, awusbphy_phynode_method
#define CLR4(res, o, m) WR4(res, o, RD4(res, o) & ~(m))
#define SET4(res, o, m) WR4(res, o, RD4(res, o) | (m))
#define PHY_CSR 0x00
#define ID_PULLUP_EN (1 << 17)
#define DPDM_PULLUP_EN (1 << 16)
#define FORCE_ID (0x3 << 14)
#define FORCE_ID_SHIFT 14
#define FORCE_ID_LOW 2
#define FORCE_VBUS_VALID (0x3 << 12)
#define FORCE_VBUS_VALID_SHIFT 12
#define FORCE_VBUS_VALID_HIGH 3
#define VBUS_CHANGE_DET (1 << 6)
#define ID_CHANGE_DET (1 << 5)
#define DPDM_CHANGE_DET (1 << 4)
#define OTG_PHY_CFG 0x20
#define OTG_PHY_ROUTE_OTG (1 << 0)
#define PMU_IRQ_ENABLE 0x00
@ -214,6 +226,7 @@ awusbphy_init(device_t dev)
struct awusbphy_softc *sc;
phandle_t node;
char pname[20];
uint32_t val;
int error, off, rid;
regulator_t reg;
hwreset_t rst;
@ -289,6 +302,16 @@ awusbphy_init(device_t dev)
}
}
/* Enable OTG PHY for host mode */
val = bus_read_4(sc->phy_ctrl, PHY_CSR);
val &= ~(VBUS_CHANGE_DET | ID_CHANGE_DET | DPDM_CHANGE_DET);
val |= (ID_PULLUP_EN | DPDM_PULLUP_EN);
val &= ~FORCE_ID;
val |= (FORCE_ID_LOW << FORCE_ID_SHIFT);
val &= ~FORCE_VBUS_VALID;
val |= (FORCE_VBUS_VALID_HIGH << FORCE_VBUS_VALID_SHIFT);
bus_write_4(sc->phy_ctrl, PHY_CSR, val);
return (0);
}

1
sys/arm/allwinner/files.allwinner
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@ -27,6 +27,7 @@ dev/usb/controller/generic_ohci.c optional ohci
dev/usb/controller/generic_usb_if.m optional ohci
dev/usb/controller/generic_ehci.c optional ehci
dev/usb/controller/generic_ehci_fdt.c optional ehci
dev/usb/controller/musb_otg_allwinner.c optional musb
arm/allwinner/aw_sid.c optional aw_sid
arm/allwinner/aw_thermal.c optional aw_thermal
arm/allwinner/aw_cir.c optional aw_cir evdev

1
sys/arm64/conf/GENERIC
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@ -222,6 +222,7 @@ device aw_usbphy # Allwinner USB PHY
device rk_usb2phy # Rockchip USB2PHY
device rk_typec_phy # Rockchip TypeC PHY
device dwcotg # DWC OTG controller
device musb # Mentor Graphics USB OTG controller
device ohci # OHCI USB interface
device ehci # EHCI USB interface (USB 2.0)
device ehci_mv # Marvell EHCI USB interface

1
sys/conf/files.arm64
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@ -339,6 +339,7 @@ dev/usb/controller/generic_ehci_acpi.c optional ehci acpi
dev/usb/controller/generic_ehci_fdt.c optional ehci fdt
dev/usb/controller/generic_ohci.c optional ohci fdt
dev/usb/controller/generic_usb_if.m optional ohci fdt
dev/usb/controller/musb_otg_allwinner.c optional musb fdt soc_allwinner_a64
dev/usb/controller/usb_nop_xceiv.c optional fdt ext_resources
dev/usb/controller/generic_xhci.c optional xhci
dev/usb/controller/generic_xhci_acpi.c optional xhci acpi