From: zumeng.chen@gmail.com (Zumeng Chen)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/5] ARM: omap3evm: enable VBUS switch for EHCI tranceiver
Date: Mon, 11 Jun 2012 22:00:14 +0800 [thread overview]
Message-ID: <1339423216-1323-4-git-send-email-zumeng.chen@gmail.com> (raw)
In-Reply-To: <1339423216-1323-1-git-send-email-zumeng.chen@gmail.com>
TWL4030.GPIO2-...->(T2_GPIO2_3V3)U131-..>nUSB2_EN-..>U134-..>EXP_nUSB2_1V8
which starts EHCI tranceiver USB3320.
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Zumeng Chen <zumeng.chen@gmail.com>
---
arch/arm/mach-omap2/board-omap3evm.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
index 7e5e18f..3806f0e 100644
--- a/arch/arm/mach-omap2/board-omap3evm.c
+++ b/arch/arm/mach-omap2/board-omap3evm.c
@@ -360,6 +360,15 @@ static int omap3evm_twl_gpio_setup(struct device *dev,
platform_device_register(&leds_gpio);
+ /* Enable VBUS switch by setting TWL4030.GPIO2DIR as output
+ * for starting USB tranceiver
+ */
+ if (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2) {
+ u8 val;
+ twl_i2c_read_u8(TWL4030_MODULE_GPIO, &val, REG_GPIODATADIR1);
+ val |= 0x04; /* TWL4030.GPIO2DIR BIT at GPIODATADIR1(0x9B) */
+ twl_i2c_write_u8(TWL4030_MODULE_GPIO, val, REG_GPIODATADIR1);
+ }
return 0;
}
--
1.7.5.4
next prev parent reply other threads:[~2012-06-11 14:00 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <zumeng.chen@gmail.com>
2012-06-11 14:00 ` [PATCH 0/5] OMAP3530evm misc fixes for linux-omap Zumeng Chen
2012-06-11 14:00 ` [PATCH 1/5] ARM: OMAP3EVM: Add NAND flash definition Zumeng Chen
2012-06-11 14:57 ` Jon Hunter
2012-06-12 2:22 ` Zumeng Chen
2012-06-11 14:00 ` [PATCH 2/5] ARM: OMAP3EVM: Adding USB internal LDOs board file Zumeng Chen
2012-06-11 14:00 ` Zumeng Chen [this message]
2012-06-11 14:00 ` [PATCH 4/5] MFD: OMAP3EVM: USB: cosmetic fix to failed parent clk set Zumeng Chen
2012-06-11 15:03 ` Jon Hunter
2012-06-12 2:30 ` Zumeng Chen
2012-06-12 16:27 ` Jon Hunter
2012-06-12 16:54 ` Zumeng Chen
2012-06-12 7:56 ` Igor Grinberg
2012-06-11 14:00 ` [PATCH 5/5] Input: ads7846: set proper debounce time in driver level Zumeng Chen
2012-06-11 14:37 ` Igor Grinberg
2012-06-12 2:49 ` Zumeng Chen
2012-06-12 7:53 ` Igor Grinberg
2012-06-12 6:47 ` Tony Lindgren
2012-06-12 16:37 ` Zumeng Chen
2012-06-13 12:55 ` Tony Lindgren
2012-06-14 3:29 ` Zumeng Chen
2012-06-14 4:57 ` Zumeng Chen
2012-06-11 14:51 ` [PATCH 0/5] OMAP3530evm misc fixes for linux-omap Jon Hunter
2012-06-12 2:31 ` Zumeng Chen
2012-06-13 1:44 ` [PATCH v2 0/5] ARM " Zumeng Chen
2012-06-13 1:44 ` [PATCH V2 1/5] ARM: OMAP3EVM: Add NAND flash definition Zumeng Chen
2012-06-13 7:57 ` Igor Grinberg
2012-06-13 8:16 ` Zumeng Chen
2012-06-13 1:44 ` [PATCH V2 2/5] ARM: OMAP3EVM: Adding USB internal LDOs board file Zumeng Chen
2012-06-13 8:16 ` Igor Grinberg
2012-06-13 8:23 ` Zumeng Chen
2012-06-13 1:44 ` [PATCH V2 3/5] ARM: omap3evm: enable VBUS switch for EHCI tranceiver Zumeng Chen
2012-06-13 1:44 ` [PATCH V2 4/5] ARM: OMAP3EVM: cosmetic fixes for parent clk set Zumeng Chen
2012-06-13 1:44 ` [PATCH V2 5/5] Input: ads7846: set proper debounce time in driver level Zumeng Chen
2012-06-13 7:51 ` Igor Grinberg
2012-06-13 9:03 ` Zumeng Chen
2012-06-13 10:13 ` Igor Grinberg
2012-06-16 13:27 ` Marek Vasut
2012-06-13 12:18 ` Hiremath, Vaibhav
2012-06-14 3:29 ` Zumeng Chen
2012-06-14 4:46 ` Zumeng Chen
2012-06-14 6:31 ` Hiremath, Vaibhav
2012-06-14 6:59 ` Zumeng Chen
2012-06-16 0:15 ` zumeng.chen
2012-06-20 5:28 ` Zumeng Chen
2012-06-14 6:44 ` Igor Grinberg
2012-06-14 7:08 ` Zumeng Chen
2012-06-14 8:06 ` Igor Grinberg
2012-06-14 8:18 ` Zumeng Chen
2012-06-20 9:14 [PATCH v3 0/5] ARM OMAP3530evm misc fixes Zumeng Chen
2012-06-20 9:14 ` [PATCH 3/5] ARM: omap3evm: enable VBUS switch for EHCI tranceiver Zumeng Chen
2012-06-20 12:05 ` Sergei Shtylyov
2012-06-21 1:03 ` Zumeng Chen
2012-07-06 8:41 ` Tony Lindgren
2012-07-08 7:50 ` Zumeng Chen
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