| Message ID | 1335862116-10391-1-git-send-email-rajeshwari.s@samsung.com |
|---|---|
| State | New |
| Headers | show |
Dear Rajeshwari Shinde, > This patch adds ehci driver support for s5p. It'd be awesome if you CCed me ;-) Also, it might be worth CCing Lukasz? > > Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> > Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> > --- > arch/arm/include/asm/arch-exynos/ehci-s5p.h | 66 ++++++++++++++++ > drivers/usb/host/Makefile | 1 + > drivers/usb/host/ehci-s5p.c | 113 > +++++++++++++++++++++++++++ 3 files changed, 180 insertions(+), 0 > deletions(-) > create mode 100755 arch/arm/include/asm/arch-exynos/ehci-s5p.h > create mode 100644 drivers/usb/host/ehci-s5p.c > > diff --git a/arch/arm/include/asm/arch-exynos/ehci-s5p.h > b/arch/arm/include/asm/arch-exynos/ehci-s5p.h new file mode 100755 > index 0000000..68feb85 > --- /dev/null > +++ b/arch/arm/include/asm/arch-exynos/ehci-s5p.h > @@ -0,0 +1,66 @@ > +/* > + * SAMSUNG S5P USB HOST EHCI Controller > + * > + * Copyright (C) 2012 Samsung Electronics Co.Ltd > + * Vivek Gautam <gautam.vivek@samsung.com> > + * > + * 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., 51 Franklin Street, Fifth Floor, Boston, > + * MA 02110-1301 USA > + */ > + > +#ifndef __ASM_ARM_ARCH_EXYNOS5_EHCI_S5P_H__ > +#define __ASM_ARM_ARCH_EXYNOS5_EHCI_S5P_H__ > + > +#define CLK_24MHZ 5 > + > +#define HOST_CTRL0_PHYSWRSTALL (1 << 31) > +#define HOST_CTRL0_COMMONON_N (1 << 9) > +#define HOST_CTRL0_SIDDQ (1 << 6) > +#define HOST_CTRL0_FORCESLEEP (1 << 5) > +#define HOST_CTRL0_FORCESUSPEND (1 << 4) > +#define HOST_CTRL0_WORDINTERFACE (1 << 3) > +#define HOST_CTRL0_UTMISWRST (1 << 2) > +#define HOST_CTRL0_LINKSWRST (1 << 1) > +#define HOST_CTRL0_PHYSWRST (1 << 0) > + > +#define HOST_CTRL0_FSEL_MASK (7 << 16) > + > +#define EHCICTRL_ENAINCRXALIGN (1 << 29) > +#define EHCICTRL_ENAINCR4 (1 << 28) > +#define EHCICTRL_ENAINCR8 (1 << 27) > +#define EHCICTRL_ENAINCR16 (1 << 26) > + > +/* Register map for PHY control */ > +struct s5p_usb_phy { > + unsigned int usbphyctrl0; > + unsigned int usbphytune0; > + unsigned int reserved1[2]; > + unsigned int hsicphyctrl1; > + unsigned int hsicphytune1; > + unsigned int reserved2[2]; > + unsigned int hsicphyctrl2; > + unsigned int hsicphytune2; > + unsigned int reserved3[2]; > + unsigned int ehcictrl; > + unsigned int ohcictrl; > + unsigned int usbotgsys; > + unsigned int reserved4; > + unsigned int usbotgtune; > +}; > + > +/* Switch on the VBUS power. */ > +int board_usb_vbus_init(void); > + > +#endif /* __ASM_ARM_ARCH_EXYNOS5_EHCI_S5P_H__ */ > diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile > index 0d4657e..59c3e57 100644 > --- a/drivers/usb/host/Makefile > +++ b/drivers/usb/host/Makefile > @@ -50,6 +50,7 @@ COBJS-$(CONFIG_USB_EHCI_PPC4XX) += ehci-ppc4xx.o > COBJS-$(CONFIG_USB_EHCI_IXP4XX) += ehci-ixp.o > COBJS-$(CONFIG_USB_EHCI_MARVELL) += ehci-marvell.o > COBJS-$(CONFIG_USB_EHCI_PCI) += ehci-pci.o > +COBJS-$(CONFIG_USB_EHCI_S5P) += ehci-s5p.o > COBJS-$(CONFIG_USB_EHCI_TEGRA) += ehci-tegra.o > COBJS-$(CONFIG_USB_EHCI_VCT) += ehci-vct.o > > diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c > new file mode 100644 > index 0000000..ac9f061 > --- /dev/null > +++ b/drivers/usb/host/ehci-s5p.c > @@ -0,0 +1,113 @@ > +/* > + * SAMSUNG S5P USB HOST EHCI Controller > + * > + * Copyright (C) 2012 Samsung Electronics Co.Ltd > + * Vivek Gautam <gautam.vivek@samsung.com> > + * > + * 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., 51 Franklin Street, Fifth Floor, Boston, > + * MA 02110-1301 USA > + */ > + > +#include <common.h> > +#include <usb.h> > +#include <asm/arch/cpu.h> > +#include <asm/arch/ehci-s5p.h> > +#include "ehci.h" > +#include "ehci-core.h" > + > +/* Setup the EHCI host controller. */ > +static void setup_usb_phy(struct s5p_usb_phy *usb) > +{ > + unsigned int hostphy_ctrl0; > + > + /* Setting up host and device simultaneously */ > + hostphy_ctrl0 = readl(&usb->usbphyctrl0); > + hostphy_ctrl0 &= ~(HOST_CTRL0_FSEL_MASK | > + HOST_CTRL0_COMMONON_N | > + /* HOST Phy setting */ > + HOST_CTRL0_PHYSWRST | > + HOST_CTRL0_PHYSWRSTALL | > + HOST_CTRL0_SIDDQ | > + HOST_CTRL0_FORCESUSPEND | > + HOST_CTRL0_FORCESLEEP); > + hostphy_ctrl0 |= (/* Setting up the ref freq */ > + CLK_24MHZ << 16 | Parens around (CLK << 16). > + /* HOST Phy setting */ > + HOST_CTRL0_LINKSWRST | > + HOST_CTRL0_UTMISWRST); > + writel(hostphy_ctrl0, &usb->usbphyctrl0); Use clrsetbits_le32() please. > + udelay(10); > + clrbits_le32(&usb->usbphyctrl0, > + HOST_CTRL0_LINKSWRST | > + HOST_CTRL0_UTMISWRST); > + udelay(20); > + > + /* EHCI Ctrl setting */ > + setbits_le32(&usb->ehcictrl, > + EHCICTRL_ENAINCRXALIGN | > + EHCICTRL_ENAINCR4 | > + EHCICTRL_ENAINCR8 | > + EHCICTRL_ENAINCR16); > +} > + > +/* Reset the EHCI host controller. */ > +static void reset_usb_phy(struct s5p_usb_phy *usb) > +{ > + /* HOST_PHY reset */ > + setbits_le32(&usb->usbphyctrl0, > + HOST_CTRL0_PHYSWRST | > + HOST_CTRL0_PHYSWRSTALL | > + HOST_CTRL0_SIDDQ | > + HOST_CTRL0_FORCESUSPEND | > + HOST_CTRL0_FORCESLEEP); > +} > + > +/* > + * EHCI-initialization > + * Create the appropriate control structures to manage > + * a new EHCI host controller. > + */ > +int ehci_hcd_init(void) > +{ > + struct s5p_usb_phy *usb; > + > + usb = (struct s5p_usb_phy *)samsung_get_base_usb_phy(); > + setup_usb_phy(usb); > + > + hccr = (struct ehci_hccr *)(EXYNOS5_USB_HOST_EHCI_BASE); > + hcor = (struct ehci_hcor *)((uint32_t) hccr > + + HC_LENGTH(ehci_readl(&hccr->cr_capbase))); > + > + printf("\n usb cmd addr = %x", &hcor->or_usbcmd); Either debug() or remove the above ;-) > + debug("Exynos5-ehci: init hccr %x and hcor %x hc_length %d\n", > + (uint32_t)hccr, (uint32_t)hcor, > + (uint32_t)HC_LENGTH(ehci_readl(&hccr->cr_capbase))); > + > + return 0; > +} > + > +/* > + * Destroy the appropriate control structures corresponding > + * the EHCI host controller. > + */ > +int ehci_hcd_stop() > +{ > + struct s5p_usb_phy *usb; > + > + usb = (struct s5p_usb_phy *)samsung_get_base_usb_phy(); > + reset_usb_phy(usb); Well ... if reseting the PHY is enough to stop the controller, I won't object ;-) This patch gives a good impression, I see V2 and then mainline acceptance :) > + > + return 0; > +}
Hi Marek Vasut, Thank you for the comments. On Wed, May 2, 2012 at 10:00 AM, Marek Vasut<marex@denx.de> wrote: > Dear Rajeshwari Shinde, > > This patch adds ehci driver support for s5p. > >It'd be awesome if you CCed me ;-) >Also, it might be worth CCing Lukasz? -- Will do so. > > > Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> > Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> > --- > arch/arm/include/asm/arch-exynos/ehci-s5p.h | 66 ++++++++++++++++ > drivers/usb/host/Makefile | 1 + > drivers/usb/host/ehci-s5p.c | 113 > +++++++++++++++++++++++++++ 3 files changed, 180 insertions(+), 0 > deletions(-) > create mode 100755 arch/arm/include/asm/arch-exynos/ehci-s5p.h > create mode 100644 drivers/usb/host/ehci-s5p.c > > diff --git a/arch/arm/include/asm/arch-exynos/ehci-s5p.h > b/arch/arm/include/asm/arch-exynos/ehci-s5p.h new file mode 100755 > index 0000000..68feb85 > --- /dev/null > +++ b/arch/arm/include/asm/arch-exynos/ehci-s5p.h > @@ -0,0 +1,66 @@ > +/* > + * SAMSUNG S5P USB HOST EHCI Controller > + * > + * Copyright (C) 2012 Samsung Electronics Co.Ltd > + * Vivek Gautam <gautam.vivek@samsung.com> > + * > + * 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., 51 Franklin Street, Fifth Floor, Boston, > + * MA 02110-1301 USA > + */ > + > +#ifndef __ASM_ARM_ARCH_EXYNOS5_EHCI_S5P_H__ > +#define __ASM_ARM_ARCH_EXYNOS5_EHCI_S5P_H__ > + > +#define CLK_24MHZ 5 > + > +#define HOST_CTRL0_PHYSWRSTALL (1 << 31) > +#define HOST_CTRL0_COMMONON_N (1 << 9) > +#define HOST_CTRL0_SIDDQ (1 << 6) > +#define HOST_CTRL0_FORCESLEEP (1 << 5) > +#define HOST_CTRL0_FORCESUSPEND (1 << 4) > +#define HOST_CTRL0_WORDINTERFACE (1 << 3) > +#define HOST_CTRL0_UTMISWRST (1 << 2) > +#define HOST_CTRL0_LINKSWRST (1 << 1) > +#define HOST_CTRL0_PHYSWRST (1 << 0) > + > +#define HOST_CTRL0_FSEL_MASK (7 << 16) > + > +#define EHCICTRL_ENAINCRXALIGN (1 << 29) > +#define EHCICTRL_ENAINCR4 (1 << 28) > +#define EHCICTRL_ENAINCR8 (1 << 27) > +#define EHCICTRL_ENAINCR16 (1 << 26) > + > +/* Register map for PHY control */ > +struct s5p_usb_phy { > + unsigned int usbphyctrl0; > + unsigned int usbphytune0; > + unsigned int reserved1[2]; > + unsigned int hsicphyctrl1; > + unsigned int hsicphytune1; > + unsigned int reserved2[2]; > + unsigned int hsicphyctrl2; > + unsigned int hsicphytune2; > + unsigned int reserved3[2]; > + unsigned int ehcictrl; > + unsigned int ohcictrl; > + unsigned int usbotgsys; > + unsigned int reserved4; > + unsigned int usbotgtune; > +}; > + > +/* Switch on the VBUS power. */ > +int board_usb_vbus_init(void); > + > +#endif /* __ASM_ARM_ARCH_EXYNOS5_EHCI_S5P_H__ */ > diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile > index 0d4657e..59c3e57 100644 > --- a/drivers/usb/host/Makefile > +++ b/drivers/usb/host/Makefile > @@ -50,6 +50,7 @@ COBJS-$(CONFIG_USB_EHCI_PPC4XX) += ehci-ppc4xx.o > COBJS-$(CONFIG_USB_EHCI_IXP4XX) += ehci-ixp.o > COBJS-$(CONFIG_USB_EHCI_MARVELL) += ehci-marvell.o > COBJS-$(CONFIG_USB_EHCI_PCI) += ehci-pci.o > +COBJS-$(CONFIG_USB_EHCI_S5P) += ehci-s5p.o > COBJS-$(CONFIG_USB_EHCI_TEGRA) += ehci-tegra.o > COBJS-$(CONFIG_USB_EHCI_VCT) += ehci-vct.o > > diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c > new file mode 100644 > index 0000000..ac9f061 > --- /dev/null > +++ b/drivers/usb/host/ehci-s5p.c > @@ -0,0 +1,113 @@ > +/* > + * SAMSUNG S5P USB HOST EHCI Controller > + * > + * Copyright (C) 2012 Samsung Electronics Co.Ltd > + * Vivek Gautam <gautam.vivek@samsung.com> > + * > + * 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., 51 Franklin Street, Fifth Floor, Boston, > + * MA 02110-1301 USA > + */ > + > +#include <common.h> > +#include <usb.h> > +#include <asm/arch/cpu.h> > +#include <asm/arch/ehci-s5p.h> > +#include "ehci.h" > +#include "ehci-core.h" > + > +/* Setup the EHCI host controller. */ > +static void setup_usb_phy(struct s5p_usb_phy *usb) > +{ > + unsigned int hostphy_ctrl0; > + > + /* Setting up host and device simultaneously */ > + hostphy_ctrl0 = readl(&usb->usbphyctrl0); > + hostphy_ctrl0 &= ~(HOST_CTRL0_FSEL_MASK | > + HOST_CTRL0_COMMONON_N | > + /* HOST Phy setting */ > + HOST_CTRL0_PHYSWRST | > + HOST_CTRL0_PHYSWRSTALL | > + HOST_CTRL0_SIDDQ | > + HOST_CTRL0_FORCESUSPEND | > + HOST_CTRL0_FORCESLEEP); > + hostphy_ctrl0 |= (/* Setting up the ref freq */ > + CLK_24MHZ << 16 | > >Parens around (CLK << 16). -- Corrected > > + /* HOST Phy setting */ > + HOST_CTRL0_LINKSWRST | > + HOST_CTRL0_UTMISWRST); > + writel(hostphy_ctrl0, &usb->usbphyctrl0); > >Use clrsetbits_le32() please. -- Corrected > + udelay(10); > + clrbits_le32(&usb->usbphyctrl0, > + HOST_CTRL0_LINKSWRST | > + HOST_CTRL0_UTMISWRST); > + udelay(20); > + > + /* EHCI Ctrl setting */ > + setbits_le32(&usb->ehcictrl, > + EHCICTRL_ENAINCRXALIGN | > + EHCICTRL_ENAINCR4 | > + EHCICTRL_ENAINCR8 | > + EHCICTRL_ENAINCR16); > +} > + > +/* Reset the EHCI host controller. */ > +static void reset_usb_phy(struct s5p_usb_phy *usb) > +{ > + /* HOST_PHY reset */ > + setbits_le32(&usb->usbphyctrl0, > + HOST_CTRL0_PHYSWRST | > + HOST_CTRL0_PHYSWRSTALL | > + HOST_CTRL0_SIDDQ | > + HOST_CTRL0_FORCESUSPEND | > + HOST_CTRL0_FORCESLEEP); > +} > + > +/* > + * EHCI-initialization > + * Create the appropriate control structures to manage > + * a new EHCI host controller. > + */ > +int ehci_hcd_init(void) > +{ > + struct s5p_usb_phy *usb; > + > + usb = (struct s5p_usb_phy *)samsung_get_base_usb_phy(); > + setup_usb_phy(usb); > + > + hccr = (struct ehci_hccr *)(EXYNOS5_USB_HOST_EHCI_BASE); > + hcor = (struct ehci_hcor *)((uint32_t) hccr > + + HC_LENGTH(ehci_readl(&hccr->cr_capbase))); > + > + printf("\n usb cmd addr = %x", &hcor->or_usbcmd); > > Either debug() or remove the above ;-) -- Removed > + debug("Exynos5-ehci: init hccr %x and hcor %x hc_length %d\n", > + (uint32_t)hccr, (uint32_t)hcor, > + (uint32_t)HC_LENGTH(ehci_readl(&hccr->cr_capbase))); > + > + return 0; > +} > + > +/* > + * Destroy the appropriate control structures corresponding > + * the EHCI host controller. > + */ > +int ehci_hcd_stop() > +{ > + struct s5p_usb_phy *usb; > + > + usb = (struct s5p_usb_phy *)samsung_get_base_usb_phy(); > + reset_usb_phy(usb); > > Well ... if reseting the PHY is enough to stop the controller, I won't object > ;-) ---- Verified the user manual and this seems to be enough to reset the host controller > > This patch gives a good impression, I see V2 and then mainline acceptance :) -- Thank you will submit V2. > + > + return 0; > +} > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot Regards, Rajeshwari Shinde.
diff --git a/arch/arm/include/asm/arch-exynos/ehci-s5p.h b/arch/arm/include/asm/arch-exynos/ehci-s5p.h new file mode 100755 index 0000000..68feb85 --- /dev/null +++ b/arch/arm/include/asm/arch-exynos/ehci-s5p.h @@ -0,0 +1,66 @@ +/* + * SAMSUNG S5P USB HOST EHCI Controller + * + * Copyright (C) 2012 Samsung Electronics Co.Ltd + * Vivek Gautam <gautam.vivek@samsung.com> + * + * 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., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#ifndef __ASM_ARM_ARCH_EXYNOS5_EHCI_S5P_H__ +#define __ASM_ARM_ARCH_EXYNOS5_EHCI_S5P_H__ + +#define CLK_24MHZ 5 + +#define HOST_CTRL0_PHYSWRSTALL (1 << 31) +#define HOST_CTRL0_COMMONON_N (1 << 9) +#define HOST_CTRL0_SIDDQ (1 << 6) +#define HOST_CTRL0_FORCESLEEP (1 << 5) +#define HOST_CTRL0_FORCESUSPEND (1 << 4) +#define HOST_CTRL0_WORDINTERFACE (1 << 3) +#define HOST_CTRL0_UTMISWRST (1 << 2) +#define HOST_CTRL0_LINKSWRST (1 << 1) +#define HOST_CTRL0_PHYSWRST (1 << 0) + +#define HOST_CTRL0_FSEL_MASK (7 << 16) + +#define EHCICTRL_ENAINCRXALIGN (1 << 29) +#define EHCICTRL_ENAINCR4 (1 << 28) +#define EHCICTRL_ENAINCR8 (1 << 27) +#define EHCICTRL_ENAINCR16 (1 << 26) + +/* Register map for PHY control */ +struct s5p_usb_phy { + unsigned int usbphyctrl0; + unsigned int usbphytune0; + unsigned int reserved1[2]; + unsigned int hsicphyctrl1; + unsigned int hsicphytune1; + unsigned int reserved2[2]; + unsigned int hsicphyctrl2; + unsigned int hsicphytune2; + unsigned int reserved3[2]; + unsigned int ehcictrl; + unsigned int ohcictrl; + unsigned int usbotgsys; + unsigned int reserved4; + unsigned int usbotgtune; +}; + +/* Switch on the VBUS power. */ +int board_usb_vbus_init(void); + +#endif /* __ASM_ARM_ARCH_EXYNOS5_EHCI_S5P_H__ */ diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 0d4657e..59c3e57 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -50,6 +50,7 @@ COBJS-$(CONFIG_USB_EHCI_PPC4XX) += ehci-ppc4xx.o COBJS-$(CONFIG_USB_EHCI_IXP4XX) += ehci-ixp.o COBJS-$(CONFIG_USB_EHCI_MARVELL) += ehci-marvell.o COBJS-$(CONFIG_USB_EHCI_PCI) += ehci-pci.o +COBJS-$(CONFIG_USB_EHCI_S5P) += ehci-s5p.o COBJS-$(CONFIG_USB_EHCI_TEGRA) += ehci-tegra.o COBJS-$(CONFIG_USB_EHCI_VCT) += ehci-vct.o diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c new file mode 100644 index 0000000..ac9f061 --- /dev/null +++ b/drivers/usb/host/ehci-s5p.c @@ -0,0 +1,113 @@ +/* + * SAMSUNG S5P USB HOST EHCI Controller + * + * Copyright (C) 2012 Samsung Electronics Co.Ltd + * Vivek Gautam <gautam.vivek@samsung.com> + * + * 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., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include <common.h> +#include <usb.h> +#include <asm/arch/cpu.h> +#include <asm/arch/ehci-s5p.h> +#include "ehci.h" +#include "ehci-core.h" + +/* Setup the EHCI host controller. */ +static void setup_usb_phy(struct s5p_usb_phy *usb) +{ + unsigned int hostphy_ctrl0; + + /* Setting up host and device simultaneously */ + hostphy_ctrl0 = readl(&usb->usbphyctrl0); + hostphy_ctrl0 &= ~(HOST_CTRL0_FSEL_MASK | + HOST_CTRL0_COMMONON_N | + /* HOST Phy setting */ + HOST_CTRL0_PHYSWRST | + HOST_CTRL0_PHYSWRSTALL | + HOST_CTRL0_SIDDQ | + HOST_CTRL0_FORCESUSPEND | + HOST_CTRL0_FORCESLEEP); + hostphy_ctrl0 |= (/* Setting up the ref freq */ + CLK_24MHZ << 16 | + /* HOST Phy setting */ + HOST_CTRL0_LINKSWRST | + HOST_CTRL0_UTMISWRST); + writel(hostphy_ctrl0, &usb->usbphyctrl0); + udelay(10); + clrbits_le32(&usb->usbphyctrl0, + HOST_CTRL0_LINKSWRST | + HOST_CTRL0_UTMISWRST); + udelay(20); + + /* EHCI Ctrl setting */ + setbits_le32(&usb->ehcictrl, + EHCICTRL_ENAINCRXALIGN | + EHCICTRL_ENAINCR4 | + EHCICTRL_ENAINCR8 | + EHCICTRL_ENAINCR16); +} + +/* Reset the EHCI host controller. */ +static void reset_usb_phy(struct s5p_usb_phy *usb) +{ + /* HOST_PHY reset */ + setbits_le32(&usb->usbphyctrl0, + HOST_CTRL0_PHYSWRST | + HOST_CTRL0_PHYSWRSTALL | + HOST_CTRL0_SIDDQ | + HOST_CTRL0_FORCESUSPEND | + HOST_CTRL0_FORCESLEEP); +} + +/* + * EHCI-initialization + * Create the appropriate control structures to manage + * a new EHCI host controller. + */ +int ehci_hcd_init(void) +{ + struct s5p_usb_phy *usb; + + usb = (struct s5p_usb_phy *)samsung_get_base_usb_phy(); + setup_usb_phy(usb); + + hccr = (struct ehci_hccr *)(EXYNOS5_USB_HOST_EHCI_BASE); + hcor = (struct ehci_hcor *)((uint32_t) hccr + + HC_LENGTH(ehci_readl(&hccr->cr_capbase))); + + printf("\n usb cmd addr = %x", &hcor->or_usbcmd); + debug("Exynos5-ehci: init hccr %x and hcor %x hc_length %d\n", + (uint32_t)hccr, (uint32_t)hcor, + (uint32_t)HC_LENGTH(ehci_readl(&hccr->cr_capbase))); + + return 0; +} + +/* + * Destroy the appropriate control structures corresponding + * the EHCI host controller. + */ +int ehci_hcd_stop() +{ + struct s5p_usb_phy *usb; + + usb = (struct s5p_usb_phy *)samsung_get_base_usb_phy(); + reset_usb_phy(usb); + + return 0; +}