Sorry, the subject should have been v4. -- Stefan
On 2017-09-13 14:29, Stefan Agner wrote: > From: Stefan Agner <stefan.ag...@toradex.com> > > This macro allows to detect whether the USB PHY is active. This > is helpful to detect if the boot ROM has previously started the > USB serial downloader. > > The idea is taken from the mfgtool support in the NXP U-Boot: > http://git.freescale.com/git/cgit.cgi/imx/uboot-imx.git/commit/?h=imx_v2016.03_4.1.15_2.0.0_ga&id=a352ed3c5184b95c4c9f7468f5fbb5f43de5e412 > > Signed-off-by: Stefan Agner <stefan.ag...@toradex.com> > Acked-by: Marcel Ziswiler <marcel.ziswi...@toradex.com> > Tested-by: Fabio Estevam <fabio.este...@nxp.com> > --- > > Changes in v4: > - Rename macro to is_usbotg_phy_active() > > Changes in v3: None > Changes in v2: > - Move macro to sys_proto.h > - Renamed from is_boot_from_usb() to is_usbphy_active() > - Use defines for register offset and field > - Remove tab after define > - Remove comment since the actual "magic" is happening and > documented at usage side > > arch/arm/include/asm/arch-mx6/sys_proto.h | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/arch/arm/include/asm/arch-mx6/sys_proto.h > b/arch/arm/include/asm/arch-mx6/sys_proto.h > index 14f5d948c9..ba73943260 100644 > --- a/arch/arm/include/asm/arch-mx6/sys_proto.h > +++ b/arch/arm/include/asm/arch-mx6/sys_proto.h > @@ -6,3 +6,10 @@ > */ > > #include <asm/mach-imx/sys_proto.h> > + > +#define USBPHY_PWD 0x00000000 > + > +#define USBPHY_PWD_RXPWDRX (1 << 20) /* receiver block power down */ > + > +#define is_usbotg_phy_active(void) (!(readl(USB_PHY0_BASE_ADDR + > USBPHY_PWD) & \ > + USBPHY_PWD_RXPWDRX)) On 2017-09-13 14:29, Stefan Agner wrote: > From: Stefan Agner <stefan.ag...@toradex.com> > > This macro allows to detect whether the USB PHY is active. This > is helpful to detect if the boot ROM has previously started the > USB serial downloader. > > The idea is taken from the mfgtool support in the NXP U-Boot: > http://git.freescale.com/git/cgit.cgi/imx/uboot-imx.git/commit/?h=imx_v2016.03_4.1.15_2.0.0_ga&id=a352ed3c5184b95c4c9f7468f5fbb5f43de5e412 > > Signed-off-by: Stefan Agner <stefan.ag...@toradex.com> > Acked-by: Marcel Ziswiler <marcel.ziswi...@toradex.com> > Tested-by: Fabio Estevam <fabio.este...@nxp.com> > --- > > Changes in v4: > - Rename macro to is_usbotg_phy_active() > > Changes in v3: None > Changes in v2: > - Move macro to sys_proto.h > - Renamed from is_boot_from_usb() to is_usbphy_active() > - Use defines for register offset and field > - Remove tab after define > - Remove comment since the actual "magic" is happening and > documented at usage side > > arch/arm/include/asm/arch-mx6/sys_proto.h | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/arch/arm/include/asm/arch-mx6/sys_proto.h > b/arch/arm/include/asm/arch-mx6/sys_proto.h > index 14f5d948c9..ba73943260 100644 > --- a/arch/arm/include/asm/arch-mx6/sys_proto.h > +++ b/arch/arm/include/asm/arch-mx6/sys_proto.h > @@ -6,3 +6,10 @@ > */ > > #include <asm/mach-imx/sys_proto.h> > + > +#define USBPHY_PWD 0x00000000 > + > +#define USBPHY_PWD_RXPWDRX (1 << 20) /* receiver block power down */ > + > +#define is_usbotg_phy_active(void) (!(readl(USB_PHY0_BASE_ADDR + > USBPHY_PWD) & \ > + USBPHY_PWD_RXPWDRX)) _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
