r689 - coreboot-v3/southbridge/amd/cs5536

Author: rminnich
Date: 2008-06-04 16:36:35 +0200 (Wed, 04 Jun 2008)
New Revision: 689

Modified:
   coreboot-v3/southbridge/amd/cs5536/cs5536.c
   coreboot-v3/southbridge/amd/cs5536/dts
Log:
This change adds some debug prints, and a comment warning to dts on cs5536.

Most importantly it fixes a simple programming error which made it so most of
the sets on the USB were not doing anything. The bug is also in V2.

With this fix, the DBE62 USB ports all work!

If someone clones the fix to V2, it will also fix V2. Or, we can just convince
you to move forward to V3 :-)

Signed-off-by: Ronald G. Minnich

Acked-by: Carl-Daniel Hailfinger 
Acked-by: Peter Stuge

Modified: coreboot-v3/southbridge/amd/cs5536/cs5536.c
===================================================================
--- coreboot-v3/southbridge/amd/cs5536/cs5536.c	2008-06-03 15:22:16 UTC (rev 688)
+++ coreboot-v3/southbridge/amd/cs5536/cs5536.c	2008-06-04 14:36:35 UTC (rev 689)
@@ -395,18 +395,19 @@
    }
 }

-#define HCCPARAMS		0x08
-#define IPREG04			0xA0
+/* the /sizeof(u32) is to convert byte offsets into u32 offsets */
+#define HCCPARAMS		(0x08/sizeof(u32))
+#define IPREG04			(0xA0/sizeof(u32))
 #define USB_HCCPW_SET		(1 << 1)
 #define UOCCAP			0x00
 #define APU_SET			(1 << 15)
-#define UOCMUX			0x04
+#define UOCMUX			(0x04/sizeof(u32))
 #define PMUX_HOST		0x02
 #define PMUX_DEVICE		0x03
 #define PUEN_SET		(1 << 2)
-#define UDCDEVCTL		0x404
+#define UDCDEVCTL		(0x404/sizeof(u32))
 #define UDC_SD_SET		(1 << 10)
-#define UOCCTL			0x0C
+#define UOCCTL			(0x0C/sizeof(u32))
 #define PADEN_SET		(1 << 7)

/**
@@ -445,6 +446,8 @@
    if (dev) {
    	bar = (u32 *) pci_read_config32(dev, PCI_BASE_ADDRESS_0);

+		printk(BIOS_DEBUG, "UOCMUX is %x\n", *(bar + UOCMUX));
+
    	*(bar + UOCMUX) &= PUEN_SET;

/* Host or Device? */
@@ -463,6 +466,7 @@
    		*(bar + UOCCAP) |= sb->pph;
    	}
    	printk(BIOS_DEBUG, "UOCCAP is %x\n", *(bar + UOCCAP));
+		printk(BIOS_DEBUG, "UOCMUX is %x\n", *(bar + UOCMUX));

}

@@ -489,6 +493,8 @@
    	}
    }

+	printk(BIOS_DEBUG, "UOCCTL is %x\n", *(bar + UOCCTL));
+
    /* Disable virtual PCI UDC and OTG headers.  The kernel never
     * sees a header for this device.  It used to provide an OS
     * visible device, but that was defeatured.  There are still

Modified: coreboot-v3/southbridge/amd/cs5536/dts
===================================================================
--- coreboot-v3/southbridge/amd/cs5536/dts	2008-06-03 15:22:16 UTC (rev 688)
+++ coreboot-v3/southbridge/amd/cs5536/dts	2008-06-04 14:36:35 UTC (rev 689)
@@ -66,6 +66,10 @@
    pph = "0";
    /* 0:off, xxxx:overcurrent setting, e.g. 0x3FEA.
     * See CS5536 - Data Book (pages 380-381).
+	 * And don't just set this to "1". You have to set it 
+	 * to values that make sense for the register. Do not set this
+	 * for your mainboard unless you have made sure of the register
+	 * settings!
     */
    enable_USBP4_overcurrent = "0";