Source-Changes-HG archive
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]
[src/trunk]: src/sys/arch/arm/samsung Revisit Exynos USB system implementing ...
details: https://anonhg.NetBSD.org/src/rev/2088accf9ab0
branches: trunk
changeset: 796505:2088accf9ab0
user: reinoud <reinoud%NetBSD.org@localhost>
date: Fri Jun 06 14:28:58 2014 +0000
description:
Revisit Exynos USB system implementing usb2phy support for Exynos4.
diffstat:
sys/arch/arm/samsung/exynos4_loc.c | 17 ++-
sys/arch/arm/samsung/exynos5_loc.c | 15 ++-
sys/arch/arm/samsung/exynos_usb.c | 172 +++++++++++++++++++++++++++++++++---
sys/arch/arm/samsung/exynos_var.h | 19 +++-
4 files changed, 192 insertions(+), 31 deletions(-)
diffs (truncated from 376 to 300 lines):
diff -r c43b1dd60cd6 -r 2088accf9ab0 sys/arch/arm/samsung/exynos4_loc.c
--- a/sys/arch/arm/samsung/exynos4_loc.c Fri Jun 06 14:25:19 2014 +0000
+++ b/sys/arch/arm/samsung/exynos4_loc.c Fri Jun 06 14:28:58 2014 +0000
@@ -304,14 +304,21 @@
/* usb locators */
const struct exyo_usb_locinfo exynos4_usb_locinfo = {
+ .uloc_pmuregs_offset = EXYNOS4_PMU_OFFSET,
+ .uloc_sysregs_offset = 0,
+
.uloc_ehci_offset = EXYNOS4_USBHOST0_OFFSET,
.uloc_ohci_offset = EXYNOS4_USBHOST1_OFFSET,
+ .uloc_usbotg_offset = EXYNOS4_USBOTG1_OFFSET,
+ .uloc_usb2phy_offset = EXYNOS4_USBOTG1_OFFSET,
+
.uloc_usbhost_irq = IRQ_UHOST,
- .uloc_usbotg_offset = EXYNOS4_USBOTG1_OFFSET,
.uloc_usbotg_irq = IRQ_HSOTG,
- .uloc_usb3_ctrl = 0, /* no usbctl */
- .uloc_usb3_linkoffset = 0, /* no usb3 */
- .uloc_usb3_slots = 0, /* no usb3 */
- .uloc_usb3_irq = 0, /* no usb3 */
+ .uloc_usb3_irq = 0, /* no usb3 */
+
+ .uloc_usb3_xhci0_offset = 0, /* no usb3 */
+ .uloc_usb3_xhci1_offset = 0, /* no usb3 */
+ .uloc_usb3_phy0_offset = 0, /* no usb3 */
+ .uloc_usb3_phy1_offset = 0, /* no usb3 */
};
diff -r c43b1dd60cd6 -r 2088accf9ab0 sys/arch/arm/samsung/exynos5_loc.c
--- a/sys/arch/arm/samsung/exynos5_loc.c Fri Jun 06 14:25:19 2014 +0000
+++ b/sys/arch/arm/samsung/exynos5_loc.c Fri Jun 06 14:28:58 2014 +0000
@@ -239,14 +239,21 @@
/* usb locators */
const struct exyo_usb_locinfo exynos5_usb_locinfo = {
+ .uloc_pmuregs_offset = EXYNOS5_ALIVE_OFFSET,
+ .uloc_sysregs_offset = EXYNOS5_SYSREG_OFFSET,
+
.uloc_ehci_offset = EXYNOS5_USB2_HOST_EHCI_OFFSET,
.uloc_ohci_offset = EXYNOS5_USB2_HOST_OHCI_OFFSET,
+ .uloc_usbotg_offset = EXYNOS5_USB2_DEVICE_LINK_OFFSET,
+ .uloc_usb2phy_offset = EXYNOS5_USB2_DEVICE_LINK_OFFSET,
+
.uloc_usbhost_irq = IRQ_USB_HOST20,
- .uloc_usbotg_offset = EXYNOS5_USB2_DEVICE_LINK_OFFSET,
.uloc_usbotg_irq = IRQ_USBOTG,
- .uloc_usb3_ctrl = EXYNOS5_USB3_DEVICE_CTRL_OFFSET,
- .uloc_usb3_linkoffset = EXYNOS5_USB3_DEVICE_LINK_OFFSET00,
- .uloc_usb3_slots = 16,
.uloc_usb3_irq = IRQ_USB_DRD30,
+
+ .uloc_usb3_xhci0_offset = EXYNOS5_USB3_XHCI0_OFFSET,
+ .uloc_usb3_xhci1_offset = EXYNOS5_USB3_XHCI1_OFFSET,
+ .uloc_usb3_phy0_offset = EXYNOS5_USB3_PHY0_OFFSET,
+ .uloc_usb3_phy1_offset = EXYNOS5_USB3_PHY1_OFFSET,
};
diff -r c43b1dd60cd6 -r 2088accf9ab0 sys/arch/arm/samsung/exynos_usb.c
--- a/sys/arch/arm/samsung/exynos_usb.c Fri Jun 06 14:25:19 2014 +0000
+++ b/sys/arch/arm/samsung/exynos_usb.c Fri Jun 06 14:28:58 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: exynos_usb.c,v 1.4 2014/05/21 13:02:46 reinoud Exp $ */
+/* $NetBSD: exynos_usb.c,v 1.5 2014/06/06 14:28:58 reinoud Exp $ */
/*-
* Copyright (c) 2014 The NetBSD Foundation, Inc.
@@ -35,7 +35,7 @@
#include <sys/cdefs.h>
-__KERNEL_RCSID(1, "$NetBSD: exynos_usb.c,v 1.4 2014/05/21 13:02:46 reinoud Exp $");
+__KERNEL_RCSID(1, "$NetBSD: exynos_usb.c,v 1.5 2014/06/06 14:28:58 reinoud Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -46,6 +46,7 @@
#include <sys/proc.h>
#include <sys/queue.h>
#include <sys/kmem.h>
+#include <sys/gpio.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
@@ -77,6 +78,10 @@
bus_space_handle_t sc_ehci_bsh;
bus_space_handle_t sc_ohci_bsh;
+ bus_space_handle_t sc_usb2phy_bsh;
+
+ bus_space_handle_t sc_pmuregs_bsh;
+ bus_space_handle_t sc_sysregs_bsh;
device_t sc_ohci_dev;
device_t sc_ehci_dev;
@@ -88,8 +93,15 @@
const char *name;
};
+static struct exynos_gpio_pinset uhost_pwr_pinset = {
+ .pinset_group = "ETC6",
+ .pinset_func = 0,
+ .pinset_mask = __BIT(5) | __BIT(6),
+};
+
+
static int exynos_usb_intr(void *arg);
-static void exynos_usb_init(struct exynos_usb_softc *sc);
+static void exynos_usb_phy_init(struct exynos_usb_softc *sc);
static int exynos_usb_match(device_t, cfdata_t, void *);
@@ -116,6 +128,8 @@
struct exynos_usb_softc * const sc = &exynos_usb_sc;
struct exyo_attach_args *exyoaa = (struct exyo_attach_args *) aux;
struct exyo_locators *loc = &exyoaa->exyo_loc;
+ struct exynos_gpio_pindata XuhostOVERCUR;
+ struct exynos_gpio_pindata XuhostPWREN;
/* no locators expected */
KASSERT(loc->loc_offset == 0);
@@ -145,10 +159,32 @@
bus_space_subregion(sc->sc_bst, exyoaa->exyo_core_bsh,
sc->sc_locinfo->uloc_ohci_offset, EXYNOS_BLOCK_SIZE,
&sc->sc_ohci_bsh);
+ bus_space_subregion(sc->sc_bst, exyoaa->exyo_core_bsh,
+ sc->sc_locinfo->uloc_usb2phy_offset, EXYNOS_BLOCK_SIZE,
+ &sc->sc_usb2phy_bsh);
+
+ bus_space_subregion(sc->sc_bst, exyoaa->exyo_core_bsh,
+ sc->sc_locinfo->uloc_pmuregs_offset, EXYNOS_BLOCK_SIZE,
+ &sc->sc_pmuregs_bsh);
+
+ if (sc->sc_locinfo->uloc_sysregs_offset)
+ bus_space_subregion(sc->sc_bst, exyoaa->exyo_core_bsh,
+ sc->sc_locinfo->uloc_sysregs_offset, EXYNOS_BLOCK_SIZE,
+ &sc->sc_sysregs_bsh);
aprint_naive("\n");
aprint_normal("\n");
+ /* power up USB subsystem XXX PWREN not working yet */
+ exynos_gpio_pinset_acquire(&uhost_pwr_pinset);
+ exynos_gpio_pinset_to_pindata(&uhost_pwr_pinset, 5, &XuhostPWREN);
+ exynos_gpio_pinset_to_pindata(&uhost_pwr_pinset, 6, &XuhostOVERCUR);
+
+ /* enable power and set Xuhost OVERCUR to inactive by pulling it up */
+ exynos_gpio_pindata_ctl(&XuhostPWREN, GPIO_PIN_PULLUP);
+ exynos_gpio_pindata_ctl(&XuhostOVERCUR, GPIO_PIN_PULLUP);
+ DELAY(80000);
+
/*
* Disable interrupts
*/
@@ -163,10 +199,8 @@
caplength + EHCI_USBINTR, 0);
#endif
- /*
- * Init USB subsystem
- */
- exynos_usb_init(sc);
+ /* init USB phys */
+ exynos_usb_phy_init(sc);
/* claim shared interrupt for OHCI/EHCI */
sc->sc_intrh = intr_establish(sc->sc_locinfo->uloc_usbhost_irq,
@@ -195,6 +229,8 @@
};
sc->sc_ehci_dev = config_found(self, &usb_ehci, NULL);
#endif
+
+ /* TBD: USB3 xhci0 / xhci1 attachments */
}
@@ -257,15 +293,11 @@
sc->sc_bus.dmatag = usbsc->sc_dmat;
sc->sc_bus.hci_private = sc;
-//sc->sc_bus.use_polling=1;
-
strlcpy(sc->sc_vendor, "exynos", sizeof(sc->sc_vendor));
aprint_naive(": OHCI USB controller\n");
aprint_normal(": OHCI USB controller\n");
- /* enable things ? extra settings? TBD */
-
/* attach */
r = ohci_init(sc);
if (r != USBD_NORMAL_COMPLETION) {
@@ -318,15 +350,11 @@
if (usbsc->sc_ohci_dev != NULL)
sc->sc_comps[sc->sc_ncomp++] = usbsc->sc_ohci_dev;
-//sc->sc_bus.use_polling=1;
-
strlcpy(sc->sc_vendor, "exynos", sizeof(sc->sc_vendor));
aprint_naive(": EHCI USB controller\n");
aprint_normal(": EHCI USB controller\n");
- /* enable things ? extra settings? TBD */
-
/* attach */
r = ehci_init(sc);
if (r != USBD_NORMAL_COMPLETION) {
@@ -341,9 +369,119 @@
#endif
+/*
+ * USB Phy init
+ */
+
static void
-exynos_usb_init(struct exynos_usb_softc *sc)
+exynos_usb2_set_isolation(struct exynos_usb_softc *sc, bool on)
{
- /* TBD */
+ int val;
+
+ val = on ? PMU_PHY_DISABLE : PMU_PHY_ENABLE;
+ if (IS_EXYNOS4X12_P()) {
+ bus_space_write_4(sc->sc_bst, sc->sc_pmuregs_bsh,
+ EXYNOS_PMU_USB_PHY_CTRL, val);
+ bus_space_write_4(sc->sc_bst, sc->sc_pmuregs_bsh,
+ EXYNOS_PMU_USB_HSIC_1_PHY_CTRL, val);
+ bus_space_write_4(sc->sc_bst, sc->sc_pmuregs_bsh,
+ EXYNOS_PMU_USB_HSIC_2_PHY_CTRL, val);
+ } else {
+ bus_space_write_4(sc->sc_bst, sc->sc_pmuregs_bsh,
+ EXYNOS_PMU_USBDEV_PHY_CTRL, val);
+ bus_space_write_4(sc->sc_bst, sc->sc_pmuregs_bsh,
+ EXYNOS_PMU_USBHOST_PHY_CTRL, val);
+ }
}
+
+#ifdef EXYNOS4
+static void
+exynos4_usb2phy_enable(struct exynos_usb_softc *sc)
+{
+ uint32_t phypwr, rstcon, clkreg;
+
+ /* disable phy isolation */
+ exynos_usb2_set_isolation(sc, false);
+
+ /* write clock value */
+ clkreg = 5; /* 24 Mhz */
+ bus_space_write_4(sc->sc_bst, sc->sc_usb2phy_bsh,
+ USB_PHYCLK, clkreg);
+
+ /* set device and host to normal */
+ phypwr = bus_space_read_4(sc->sc_bst, sc->sc_usb2phy_bsh,
+ USB_PHYPWR);
+
+ /* set to normal of device */
+ phypwr &= ~PHYPWR_NORMAL_MASK_PHY0;
+ bus_space_write_4(sc->sc_bst, sc->sc_usb2phy_bsh,
+ USB_PHYPWR, phypwr);
+
+ if (IS_EXYNOS4X12_P()) {
+ /* set to normal of host */
+ phypwr = bus_space_read_4(sc->sc_bst, sc->sc_usb2phy_bsh,
+ USB_PHYPWR);
+ phypwr &= ~(PHYPWR_NORMAL_MASK_HSIC0 |
+ PHYPWR_NORMAL_MASK_HSIC1 |
+ PHYPWR_NORMAL_MASK_PHY1);
+ bus_space_write_4(sc->sc_bst, sc->sc_usb2phy_bsh,
+ USB_PHYPWR, phypwr);
+ }
+
+ /* reset both phy and link of device */
+ rstcon = bus_space_read_4(sc->sc_bst, sc->sc_usb2phy_bsh,
+ USB_RSTCON);
+ rstcon |= RSTCON_DEVPHY_SWRST;
+ bus_space_write_4(sc->sc_bst, sc->sc_usb2phy_bsh,
+ USB_RSTCON, rstcon);
+ DELAY(10000);
+ rstcon &= ~RSTCON_DEVPHY_SWRST;
+ bus_space_write_4(sc->sc_bst, sc->sc_usb2phy_bsh,
+ USB_RSTCON, rstcon);
+
+ if (IS_EXYNOS4X12_P()) {
+ /* reset both phy and link of host */
+ rstcon = bus_space_read_4(sc->sc_bst, sc->sc_usb2phy_bsh,
+ USB_RSTCON);
+ rstcon |= RSTCON_HOSTPHY_SWRST | RSTCON_HOSTPHYLINK_SWRST;
+ bus_space_write_4(sc->sc_bst, sc->sc_usb2phy_bsh,
+ USB_RSTCON, rstcon);
+ DELAY(10000);
+ rstcon &= ~(RSTCON_HOSTPHY_SWRST | RSTCON_HOSTPHYLINK_SWRST);
+ bus_space_write_4(sc->sc_bst, sc->sc_usb2phy_bsh,
+ USB_RSTCON, rstcon);
+ }
+
+ /* wait for everything to be initialized */
Home |
Main Index |
Thread Index |
Old Index