X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fusb%2Fgadget%2Fs3c_udc_otg.c;h=7653f03949a114c1d32274a6cd1ff41b32b48c93;hb=85d5e7075f33e97079886027104591ff53d6363b;hp=f9d24e3dfdc02ab6a613a3a1a1ad964bf364aad6;hpb=82651c39f6544e932fb86853bf9a648414ccca9a;p=u-boot diff --git a/drivers/usb/gadget/s3c_udc_otg.c b/drivers/usb/gadget/s3c_udc_otg.c index f9d24e3dfd..7653f03949 100644 --- a/drivers/usb/gadget/s3c_udc_otg.c +++ b/drivers/usb/gadget/s3c_udc_otg.c @@ -15,20 +15,7 @@ * Marek Szyprowski * Lukasz Majewski * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * + * SPDX-License-Identifier: GPL-2.0+ */ #undef DEBUG #include @@ -44,7 +31,6 @@ #include #include -#include #include "regs-otg.h" #include @@ -118,7 +104,7 @@ static void stop_activity(struct s3c_udc *dev, struct usb_gadget_driver *driver); static int udc_enable(struct s3c_udc *dev); static void udc_set_address(struct s3c_udc *dev, unsigned char address); -static void reconfig_usbd(void); +static void reconfig_usbd(struct s3c_udc *dev); static void set_max_pktsize(struct s3c_udc *dev, enum usb_device_speed speed); static void nuke(struct s3c_ep *ep, int status); static int s3c_udc_set_halt(struct usb_ep *_ep, int value); @@ -159,58 +145,14 @@ static struct usb_ep_ops s3c_ep_ops = { void __iomem *regs_otg; struct s3c_usbotg_reg *reg; -struct s3c_usbotg_phy *phy; -static unsigned int usb_phy_ctrl; -void otg_phy_init(struct s3c_udc *dev) +bool dfu_usb_get_reset(void) { - dev->pdata->phy_control(1); - - /*USB PHY0 Enable */ - printf("USB PHY0 Enable\n"); - - /* Enable PHY */ - writel(readl(usb_phy_ctrl) | USB_PHY_CTRL_EN0, usb_phy_ctrl); - - if (dev->pdata->usb_flags == PHY0_SLEEP) /* C210 Universal */ - writel((readl(&phy->phypwr) - &~(PHY_0_SLEEP | OTG_DISABLE_0 | ANALOG_PWRDOWN) - &~FORCE_SUSPEND_0), &phy->phypwr); - else /* C110 GONI */ - writel((readl(&phy->phypwr) &~(OTG_DISABLE_0 | ANALOG_PWRDOWN) - &~FORCE_SUSPEND_0), &phy->phypwr); - - writel((readl(&phy->phyclk) &~(ID_PULLUP0 | COMMON_ON_N0)) | - CLK_SEL_24MHZ, &phy->phyclk); /* PLL 24Mhz */ - - writel((readl(&phy->rstcon) &~(LINK_SW_RST | PHYLNK_SW_RST)) - | PHY_SW_RST0, &phy->rstcon); - udelay(10); - writel(readl(&phy->rstcon) - &~(PHY_SW_RST0 | LINK_SW_RST | PHYLNK_SW_RST), &phy->rstcon); - udelay(10); + return !!(readl(®->gintsts) & INT_RESET); } -void otg_phy_off(struct s3c_udc *dev) -{ - /* reset controller just in case */ - writel(PHY_SW_RST0, &phy->rstcon); - udelay(20); - writel(readl(&phy->phypwr) &~PHY_SW_RST0, &phy->rstcon); - udelay(20); - - writel(readl(&phy->phypwr) | OTG_DISABLE_0 | ANALOG_PWRDOWN - | FORCE_SUSPEND_0, &phy->phypwr); - - writel(readl(usb_phy_ctrl) &~USB_PHY_CTRL_EN0, usb_phy_ctrl); - - writel((readl(&phy->phyclk) & ~(ID_PULLUP0 | COMMON_ON_N0)), - &phy->phyclk); - - udelay(10000); - - dev->pdata->phy_control(0); -} +__weak void otg_phy_init(struct s3c_udc *dev) {} +__weak void otg_phy_off(struct s3c_udc *dev) {} /***********************************************************/ @@ -273,7 +215,7 @@ static int udc_enable(struct s3c_udc *dev) debug_cond(DEBUG_SETUP != 0, "%s: %p\n", __func__, dev); otg_phy_init(dev); - reconfig_usbd(); + reconfig_usbd(dev); debug_cond(DEBUG_SETUP != 0, "S3C USB 2.0 OTG Controller Core Initialized : 0x%x\n", @@ -291,7 +233,7 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver) { struct s3c_udc *dev = the_controller; int retval = 0; - unsigned long flags; + unsigned long flags = 0; debug_cond(DEBUG_SETUP != 0, "%s: %s\n", __func__, "no name"); @@ -339,7 +281,7 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver) int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) { struct s3c_udc *dev = the_controller; - unsigned long flags; + unsigned long flags = 0; if (!dev) return -ENODEV; @@ -454,15 +396,17 @@ static void stop_activity(struct s3c_udc *dev, udc_reinit(dev); } -static void reconfig_usbd(void) +static void reconfig_usbd(struct s3c_udc *dev) { /* 2. Soft-reset OTG Core and then unreset again. */ int i; unsigned int uTemp = writel(CORE_SOFT_RESET, ®->grstctl); + uint32_t dflt_gusbcfg; debug("Reseting OTG controller\n"); - writel(0<<15 /* PHY Low Power Clock sel*/ + dflt_gusbcfg = + 0<<15 /* PHY Low Power Clock sel*/ |1<<14 /* Non-Periodic TxFIFO Rewind Enable*/ |0x5<<10 /* Turnaround time*/ |0<<9 | 0<<8 /* [0:HNP disable,1:HNP enable][ 0:SRP disable*/ @@ -471,8 +415,12 @@ static void reconfig_usbd(void) |0<<6 /* 0: high speed utmi+, 1: full speed serial*/ |0<<4 /* 0: utmi+, 1:ulpi*/ |1<<3 /* phy i/f 0:8bit, 1:16bit*/ - |0x7<<0, /* HS/FS Timeout**/ - ®->gusbcfg); + |0x7<<0; /* HS/FS Timeout**/ + + if (dev->pdata->usb_gusbcfg) + dflt_gusbcfg = dev->pdata->usb_gusbcfg; + + writel(dflt_gusbcfg, ®->gusbcfg); /* 3. Put the OTG device core in the disconnected state.*/ uTemp = readl(®->dctl); @@ -583,7 +531,7 @@ static int s3c_ep_enable(struct usb_ep *_ep, { struct s3c_ep *ep; struct s3c_udc *dev; - unsigned long flags; + unsigned long flags = 0; debug("%s: %p\n", __func__, _ep); @@ -647,7 +595,7 @@ static int s3c_ep_enable(struct usb_ep *_ep, static int s3c_ep_disable(struct usb_ep *_ep) { struct s3c_ep *ep; - unsigned long flags; + unsigned long flags = 0; debug("%s: %p\n", __func__, _ep); @@ -705,7 +653,7 @@ static int s3c_dequeue(struct usb_ep *_ep, struct usb_request *_req) { struct s3c_ep *ep; struct s3c_request *req; - unsigned long flags; + unsigned long flags = 0; debug("%s: %p\n", __func__, _ep); @@ -851,15 +799,13 @@ static struct s3c_udc memory = { int s3c_udc_probe(struct s3c_plat_otg_data *pdata) { struct s3c_udc *dev = &memory; - int retval = 0, i; + int retval = 0; debug("%s: %p\n", __func__, pdata); dev->pdata = pdata; - phy = (struct s3c_usbotg_phy *)pdata->regs_phy; reg = (struct s3c_usbotg_reg *)pdata->regs_otg; - usb_phy_ctrl = pdata->usb_phy_ctrl; /* regs_otg = (void *)pdata->regs_otg; */ @@ -872,16 +818,15 @@ int s3c_udc_probe(struct s3c_plat_otg_data *pdata) the_controller = dev; - for (i = 0; i < S3C_MAX_ENDPOINTS+1; i++) { - dev->dma_buf[i] = memalign(CONFIG_SYS_CACHELINE_SIZE, - DMA_BUFFER_SIZE); - dev->dma_addr[i] = (dma_addr_t) dev->dma_buf[i]; - invalidate_dcache_range((unsigned long) dev->dma_buf[i], - (unsigned long) (dev->dma_buf[i] - + DMA_BUFFER_SIZE)); + usb_ctrl = memalign(CONFIG_SYS_CACHELINE_SIZE, + ROUND(sizeof(struct usb_ctrlrequest), + CONFIG_SYS_CACHELINE_SIZE)); + if (!usb_ctrl) { + error("No memory available for UDC!\n"); + return -ENOMEM; } - usb_ctrl = dev->dma_buf[0]; - usb_ctrl_dma_addr = dev->dma_addr[0]; + + usb_ctrl_dma_addr = (dma_addr_t) usb_ctrl; udc_reinit(dev);