---

yaml --- r: 56918 b: refs/heads/master c: 40acc09 h: refs/heads/master v: v3
git-mirror · May 24, 2007 · 3e43cd3 · 3e43cd3
1 parent a391c41
commit 3e43cd3
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Showing 3 changed files with 15 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 3d6ac9843175c1d29c075794519cb045b52e46c2
+refs/heads/master: 40acc095302aee380491df5f58d98945243468ec
diff --git a/trunk/drivers/usb/host/ehci-fsl.c b/trunk/drivers/usb/host/ehci-fsl.c
@@ -193,6 +193,19 @@ static void mpc83xx_usb_setup(struct usb_hcd *hcd)
 	out_be32(non_ehci + FSL_SOC_USB_CTRL, 0x00000004);
 	out_be32(non_ehci + FSL_SOC_USB_SNOOP1, 0x0000001b);
 
+#if defined(CONFIG_PPC32) && !defined(CONFIG_NOT_COHERENT_CACHE)
+	/*
+	 * Turn on cache snooping hardware, since some PowerPC platforms
+	 * wholly rely on hardware to deal with cache coherent
+	 */
+
+	/* Setup Snooping for all the 4GB space */
+	/* SNOOP1 starts from 0x0, size 2G */
+	out_be32(non_ehci + FSL_SOC_USB_SNOOP1, 0x0 | SNOOP_SIZE_2GB);
+	/* SNOOP2 starts from 0x80000000, size 2G */
+	out_be32(non_ehci + FSL_SOC_USB_SNOOP2, 0x80000000 | SNOOP_SIZE_2GB);
+#endif
+
 	if (pdata->operating_mode == FSL_USB2_DR_HOST)
 		mpc83xx_setup_phy(ehci, pdata->phy_mode, 0);
 

diff --git a/trunk/drivers/usb/host/ehci-fsl.h b/trunk/drivers/usb/host/ehci-fsl.h
@@ -34,4 +34,5 @@
 #define FSL_SOC_USB_PRICTRL	0x40c	/* NOTE: big-endian */
 #define FSL_SOC_USB_SICTRL	0x410	/* NOTE: big-endian */
 #define FSL_SOC_USB_CTRL	0x500	/* NOTE: big-endian */
+#define SNOOP_SIZE_2GB		0x1e
 #endif				/* _EHCI_FSL_H */