From: Sascha Laue <[EMAIL PROTECTED]>
Signed-off-by: Sascha Laue <[EMAIL PROTECTED]>
---
board/lwmon5/lwmon5.c | 44 +++++++++++++++++++++++++++++++++++++++-----
1 files changed, 39 insertions(+), 5 deletions(-)
diff --git a/board/lwmon5/lwmon5.c b/board/lwmon5/lwmon5.c
index 8975bfd..5e310f4 100644
--- a/board/lwmon5/lwmon5.c
+++ b/board/lwmon5/lwmon5.c
@@ -145,7 +145,7 @@ int misc_init_r(void)
u32 reg;
unsigned long usb2d0cr = 0;
unsigned long usb2phy0cr, usb2h0cr = 0;
- unsigned long sdr0_pfc1;
+ unsigned long sdr0_pfc1, sdr0_srst;
/*
* FLASH stuff...
@@ -207,6 +207,15 @@ int misc_init_r(void)
/*
* USB suff...
*/
+
+ /* Reset USB peripherie */
+ mtsdr(SDR0_SRST0, SDR0_SRST0_USB2H | SDR0_SRST0_USB2D );
+ mtsdr(SDR0_SRST1, SDR0_SRST1_USB20PHY | SDR0_SRST1_USB2HUTMI \
+ | SDR0_SRST1_USB2HPHY | SDR0_SRST1_OPBA2 \
+ | SDR0_SRST1_PLB42OPB1 | SDR0_SRST1_OPB2PLB40 );
+
+ udelay(100);
+
/* SDR Setting */
mfsdr(SDR0_PFC1, sdr0_pfc1);
mfsdr(SDR0_USB0, usb2d0cr);
@@ -234,13 +243,38 @@ int misc_init_r(void)
mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
mtsdr(SDR0_USB2H0CR, usb2h0cr);
- /*
- * Clear resets
- */
+ /* the 440EPx controllers need this sequence to initiate the EHCI */
+
+ /* deassert reset to USBPHY */
+ mfsdr(SDR0_SRST1, sdr0_srst);
+ sdr0_srst &= ~SDR0_SRST1_USB20PHY;
+ mtsdr(SDR0_SRST1, sdr0_srst);
+
udelay (1000);
- mtsdr(SDR0_SRST1, 0x00000000);
+
+ /* deassert reset to HOST*/
+ mfsdr(SDR0_SRST1, sdr0_srst);
+ sdr0_srst &= ~( SDR0_SRST0_USB2H );
+ mtsdr(SDR0_SRST1, sdr0_srst);
+
+ udelay(4000);
+
+ /* deassert reset to OPB1, P4OPB0, OPB2, PLB42OPB1, OPB2PLB40 cores */
+ mfsdr(SDR0_SRST1, sdr0_srst);
+ sdr0_srst &= ~( SDR0_SRST1_OPBA1 | \
+ SDR0_SRST1_P4OPB0 | \
+ SDR0_SRST1_OPBA2 | \
+ SDR0_SRST1_PLB42OPB1 | \
+ SDR0_SRST1_OPB2PLB40);
+ mtsdr(SDR0_SRST1, sdr0_srst);
+
udelay (1000);
+
+ /* deassert all other resets */
mtsdr(SDR0_SRST0, 0x00000000);
+ mtsdr(SDR0_SRST1, 0x00000000);
+
+ udelay(1000);
printf("USB: Host(int phy) Device(ext phy)\n");
--
1.5.2.4
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