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| author | Gregory Nutt <gnutt@nuttx.org> | 2013-11-27 13:14:23 -0600 |
|---|---|---|
| committer | Gregory Nutt <gnutt@nuttx.org> | 2013-11-27 13:14:23 -0600 |
| commit | 49ebbe012dcd2f3998ebc3d50f26642c686f193d (patch) | |
| tree | 55e7f22fe249348022e29ef3f7dd3abf9f347b5e /nuttx/arch/arm/src/lpc31xx | |
| parent | 0fbbe19c1269dd9e902cbf3e98b1c4a6d614f6f2 (diff) | |
| download | nuttx-49ebbe012dcd2f3998ebc3d50f26642c686f193d.tar.gz nuttx-49ebbe012dcd2f3998ebc3d50f26642c686f193d.tar.bz2 nuttx-49ebbe012dcd2f3998ebc3d50f26642c686f193d.zip | |
LPC31 EHCI: Seems to work after re-ordering some initialization logic
Diffstat (limited to 'nuttx/arch/arm/src/lpc31xx')
| -rwxr-xr-x | nuttx/arch/arm/src/lpc31xx/lpc31_ehci.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/nuttx/arch/arm/src/lpc31xx/lpc31_ehci.c b/nuttx/arch/arm/src/lpc31xx/lpc31_ehci.c index 22c105c33..8802ef638 100755 --- a/nuttx/arch/arm/src/lpc31xx/lpc31_ehci.c +++ b/nuttx/arch/arm/src/lpc31xx/lpc31_ehci.c @@ -4307,7 +4307,7 @@ FAR struct usbhost_connection_s *lpc31_ehci_initialize(int controller) * SLOM Not used in host mode. * SDIS = 1, Stream disable mode. Eliminates overruns/underruns at * the expense of some performance. - * VBPS = 1, off chip power source + * VBPS = 1, off-chip power source */ putreg32(USBHOST_USBMODE_CMHOST | USBHOST_USBMODE_SDIS | USBHOST_USBMODE_VBPS, @@ -4323,6 +4323,14 @@ FAR struct usbhost_connection_s *lpc31_ehci_initialize(int controller) return NULL; } + /* Re-program the USB host controller. As implemented, lpc31_reset() + * requires the host mode setup in order to work. However, we lose the + * host configuration in the reset. + */ + + putreg32(USBHOST_USBMODE_CMHOST | USBHOST_USBMODE_SDIS | USBHOST_USBMODE_VBPS, + LPC31_USBDEV_USBMODE); + /* "In order to initialize the host controller, software should perform the * following steps: * |