From 375de01702f4b0b1a27715ca1a18110d6dbfdebe Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Mon, 27 Apr 2015 11:44:22 +0200 Subject: sunxi: usb: Move setup of host controller clocks to the host controller drivers The sunxi "usbc" code is mostly about phy setup, but currently also sets up the host controller clocks, which is something which really belongs in the host controller drivers, so move it there. This is a preparation patch for moving the sunxi ehci code to the driver model and for adding ohci support. Signed-off-by: Hans de Goede Acked-by: Ian Campbell --- drivers/usb/host/ehci-sunxi.c | 24 ++++++++++++++++++++++-- drivers/usb/musb-new/sunxi.c | 20 ++++++++++++++++++++ 2 files changed, 42 insertions(+), 2 deletions(-) (limited to 'drivers/usb') diff --git a/drivers/usb/host/ehci-sunxi.c b/drivers/usb/host/ehci-sunxi.c index eda9f698d9..41e4d7f908 100644 --- a/drivers/usb/host/ehci-sunxi.c +++ b/drivers/usb/host/ehci-sunxi.c @@ -9,19 +9,29 @@ * SPDX-License-Identifier: GPL-2.0+ */ -#include #include +#include +#include +#include #include "ehci.h" int ehci_hcd_init(int index, enum usb_init_type init, struct ehci_hccr **hccr, struct ehci_hcor **hcor) { - int err; + struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; + int ahb_gate_offset, err; err = sunxi_usbc_request_resources(index + 1); if (err) return err; + ahb_gate_offset = index ? AHB_GATE_OFFSET_USB_EHCI1 : + AHB_GATE_OFFSET_USB_EHCI0; + setbits_le32(&ccm->ahb_gate0, 1 << ahb_gate_offset); +#ifdef CONFIG_SUNXI_GEN_SUN6I + setbits_le32(&ccm->ahb_reset0_cfg, 1 << ahb_gate_offset); +#endif + sunxi_usbc_enable(index + 1); sunxi_usbc_vbus_enable(index + 1); @@ -39,8 +49,18 @@ int ehci_hcd_init(int index, enum usb_init_type init, struct ehci_hccr **hccr, int ehci_hcd_stop(int index) { + struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; + int ahb_gate_offset; + sunxi_usbc_vbus_disable(index + 1); sunxi_usbc_disable(index + 1); + ahb_gate_offset = index ? AHB_GATE_OFFSET_USB_EHCI1 : + AHB_GATE_OFFSET_USB_EHCI0; +#ifdef CONFIG_SUNXI_GEN_SUN6I + clrbits_le32(&ccm->ahb_reset0_cfg, 1 << ahb_gate_offset); +#endif + clrbits_le32(&ccm->ahb_gate0, 1 << ahb_gate_offset); + return sunxi_usbc_free_resources(index + 1); } diff --git a/drivers/usb/musb-new/sunxi.c b/drivers/usb/musb-new/sunxi.c index c9a6a16b89..e3c6d6a98b 100644 --- a/drivers/usb/musb-new/sunxi.c +++ b/drivers/usb/musb-new/sunxi.c @@ -22,6 +22,7 @@ */ #include #include +#include #include #include #include @@ -219,11 +220,24 @@ static void sunxi_musb_enable(struct musb *musb) static void sunxi_musb_disable(struct musb *musb) { + struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; + pr_debug("%s():\n", __func__); /* Put the controller back in a pristane state for "usb reset" */ if (musb->is_active) { sunxi_usbc_disable(0); +#ifdef CONFIG_SUNXI_GEN_SUN6I + clrbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_GATE_OFFSET_USB0); +#endif + clrbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_USB0); + + mdelay(10); + + setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_USB0); +#ifdef CONFIG_SUNXI_GEN_SUN6I + setbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_GATE_OFFSET_USB0); +#endif sunxi_usbc_enable(0); musb->is_active = 0; } @@ -231,6 +245,7 @@ static void sunxi_musb_disable(struct musb *musb) static int sunxi_musb_init(struct musb *musb) { + struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; int err; pr_debug("%s():\n", __func__); @@ -249,6 +264,11 @@ static int sunxi_musb_init(struct musb *musb) } musb->isr = sunxi_musb_interrupt; + + setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_USB0); +#ifdef CONFIG_SUNXI_GEN_SUN6I + setbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_GATE_OFFSET_USB0); +#endif sunxi_usbc_enable(0); USBC_ConfigFIFO_Base(); -- cgit v1.2.1