From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ajay Kumar Gupta Date: Wed, 9 Jun 2010 16:15:34 +0530 Subject: [U-Boot] [PATCH 4/4] musb: Program extvbus for OMAP3EVM Rev >= E In-Reply-To: <1276080334-930-3-git-send-email-ajay.gupta@ti.com> References: <1276080334-930-1-git-send-email-ajay.gupta@ti.com> <1276080334-930-2-git-send-email-ajay.gupta@ti.com> <1276080334-930-3-git-send-email-ajay.gupta@ti.com> Message-ID: <1276080334-930-4-git-send-email-ajay.gupta@ti.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de OMAP3EVM Rev >=E uses external Vbus supply so setting 'extvbus' to '1' for OMAP3EVM Rev >=E runtime based on EVM revision. Signed-off-by: Ajay Kumar Gupta --- board/ti/evm/evm.c | 13 +++++++++++++ drivers/usb/musb/omap3.c | 3 +++ drivers/usb/musb/omap3.h | 4 ++++ 3 files changed, 20 insertions(+), 0 deletions(-) diff --git a/board/ti/evm/evm.c b/board/ti/evm/evm.c index fcc1803..9948b9c 100644 --- a/board/ti/evm/evm.c +++ b/board/ti/evm/evm.c @@ -65,6 +65,19 @@ static void omap3_evm_get_revision(void) } /* + * MUSB port on OMAP3EVM Rev >= E requires extvbus programming. + */ +u8 omap3_evm_need_extvbus(void) +{ + u8 retval = 0; + + if (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2) + retval = 1; + + return retval; +} + +/* * Routine: board_init * Description: Early hardware init. */ diff --git a/drivers/usb/musb/omap3.c b/drivers/usb/musb/omap3.c index 785629c..a983552 100644 --- a/drivers/usb/musb/omap3.c +++ b/drivers/usb/musb/omap3.c @@ -119,6 +119,9 @@ int musb_platform_init(void) stdby &= ~OMAP3_OTG_FORCESTDBY_STANDBY; writel(stdby, &otg->forcestdby); +#ifdef CONFIG_OMAP3_EVM + musb_cfg.extvbus = omap3_evm_need_extvbus(); +#endif platform_needs_initialization = 0; } diff --git a/drivers/usb/musb/omap3.h b/drivers/usb/musb/omap3.h index b591862..c934e0c 100644 --- a/drivers/usb/musb/omap3.h +++ b/drivers/usb/musb/omap3.h @@ -44,4 +44,8 @@ int musb_platform_init(void); +#ifdef CONFIG_OMAP3_EVM +extern u8 omap3_evm_use_extvbus(void); +#endif + #endif /* _MUSB_OMAP3_H */ -- 1.6.2.4