[U-Boot] [PATCH] ehci-omap: fix for enabling the correct usb port

Jeroen Hofstee jeroen at myspectrum.nl
Thu Apr 19 23:25:18 CEST 2012


This is just a patch for the problem reported here:
http://lists.denx.de/pipermail/u-boot/2012-February/117580.html originally reported by Igor.

"Looks like this is copy paste error from my side,(for port2/3 it should have been bypass
 for port2/3 rather its port1 set in bypass mode)"

I only submit the patch since it is missing in 2012.04-rc3 while the twister board
depends on it. Maybe it is already somewhere in the reposistory, but I cannot find it.

note: the twister boards still needs an additional `usb reset`, don't know why.

U-Boot 2012.04-rc3-dirty (Apr 19 2012 - 21:38:38)

AM35XX-GP ES1.0, CPU-OPP2, L3-165MHz, Max CPU Clock 600 Mhz
TAM3517 TWISTER Board + LPDDR/NAND
I2C:   ready
DRAM:  256 MiB
NAND:  512 MiB
MMC:   OMAP SD/MMC: 0
In:    serial
Out:   serial
Err:   serial
Die ID #746c0000000000000155dc1405011024
Net:   DaVinci-EMAC, smc911x-0
Hit any key to stop autoboot:  0
twister => usb start
(Re)start USB...
USB:   Register 1313 NbrPorts 3
USB EHCI 1.00
scanning bus for devices... 1 USB Device(s) found
       scanning bus for storage devices... 0 Storage Device(s) found
twister => usb reset
(Re)start USB...
USB:   Register 1313 NbrPorts 3
USB EHCI 1.00
scanning bus for devices... 1 USB Device(s) found
       scanning bus for storage devices... 0 Storage Device(s) found
twister => usb reset
(Re)start USB...
USB:   Register 1313 NbrPorts 3
USB EHCI 1.00
scanning bus for devices... 1 USB Device(s) found
       scanning bus for storage devices... 0 Storage Device(s) found
twister => usb reset
(Re)start USB...
USB:   Register 1313 NbrPorts 3
USB EHCI 1.00
scanning bus for devices... 1 USB Device(s) found
       scanning bus for storage devices... 0 Storage Device(s) found


Signed-off-by: Jeroen Hofstee <jeroen at myspectrum.nl>
---
 drivers/usb/host/ehci-omap.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c
index 00f787f..1ed7710 100644
--- a/drivers/usb/host/ehci-omap.c
+++ b/drivers/usb/host/ehci-omap.c
@@ -200,12 +200,12 @@ int omap_ehci_hcd_init(struct omap_usbhs_board_data *usbhs_pdata)
 		if (is_ehci_phy_mode(usbhs_pdata->port_mode[1]))
 			clrbits_le32(&reg, OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS);
 		else
-			setbits_le32(&reg, OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS);
+			setbits_le32(&reg, OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS);
 
 		if (is_ehci_phy_mode(usbhs_pdata->port_mode[2]))
 			clrbits_le32(&reg, OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS);
 		else
-			setbits_le32(&reg, OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS);
+			setbits_le32(&reg, OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS);
 	} else if (rev == OMAP_USBHS_REV2) {
 		clrsetbits_le32(&reg, (OMAP_P1_MODE_CLEAR | OMAP_P2_MODE_CLEAR),
 					OMAP4_UHH_HOSTCONFIG_APP_START_CLK);
-- 
1.7.5.4



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