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brcm47xx: some fixes

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* fix return codes of nvram_getenv. Now it behaves like cfe_getenv.
* also check cfe for kernel_args param. 
* some style fixes


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22424 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
hauke
2010-07-31 10:05:29 +00:00
parent ee0a2580d0
commit 48bf9ccb33
16 changed files with 202 additions and 135 deletions
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28
target/linux/brcm47xx/patches-2.6.35/022-USB-Add-ehci-ssb-driver.patch
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@@ -1,4 +1,4 @@
From cb269cf1f97c316a5184080814a751687c72b718 Mon Sep 17 00:00:00 2001
From ad224c0d5fa0fc05f8aaef3c19fc9b4eb275a5d2 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sun, 18 Jul 2010 21:29:40 +0200
Subject: [PATCH 2/2] USB: Add ehci ssb driver
@@ -8,9 +8,9 @@ Support for the Sonics Silicon Backplane (SSB) attached Broadcom USB EHCI core.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
drivers/usb/host/Kconfig | 13 ++
drivers/usb/host/ehci-hcd.c | 23 ++++-
drivers/usb/host/ehci-ssb.c | 258 +++++++++++++++++++++++++++++++++++++++++++
3 files changed, 292 insertions(+), 2 deletions(-)
drivers/usb/host/ehci-hcd.c | 22 ++++-
drivers/usb/host/ehci-ssb.c | 255 +++++++++++++++++++++++++++++++++++++++++++
3 files changed, 288 insertions(+), 2 deletions(-)
create mode 100644 drivers/usb/host/ehci-ssb.c
--- a/drivers/usb/host/Kconfig
@@ -53,7 +53,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
#error "missing bus glue for ehci-hcd"
#endif
@@ -1220,10 +1225,21 @@ static int __init ehci_hcd_init(void)
@@ -1220,10 +1225,20 @@ static int __init ehci_hcd_init(void)
if (retval < 0)
goto clean4;
#endif
@@ -63,7 +63,6 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+ if (retval < 0)
+ goto clean5;
+#endif
+
return retval;
+#ifdef SSB_EHCI_DRIVER
@@ -76,7 +75,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
clean4:
#endif
#ifdef OF_PLATFORM_DRIVER
@@ -1254,6 +1270,9 @@ module_init(ehci_hcd_init);
@@ -1254,6 +1269,9 @@ module_init(ehci_hcd_init);
static void __exit ehci_hcd_cleanup(void)
{
@@ -88,7 +87,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
#endif
--- /dev/null
+++ b/drivers/usb/host/ehci-ssb.c
@@ -0,0 +1,258 @@
@@ -0,0 +1,255 @@
+/*
+ * Sonics Silicon Backplane
+ * Broadcom USB-core EHCI driver (SSB bus glue)
@@ -190,9 +189,9 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+static void ssb_ehci_detach(struct ssb_device *dev)
+{
+ struct usb_hcd *hcd = ssb_get_drvdata(dev);
+
+ if (hcd->driver->shutdown)
+ hcd->driver->shutdown(hcd);
+
+ usb_remove_hcd(hcd);
+ iounmap(hcd->regs);
+ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
@@ -214,12 +213,9 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+ /*
+ * USB 2.0 special considerations:
+ *
+ * 1. Since the core supports both ehci and EHCI functions, it must
+ * only be reset once.
+ *
+ * 2. In addition to the standard SSB reset sequence, the Host Control
+ * Register must be programmed to bring the USB core and various
+ * phy components out of reset.
+ * In addition to the standard SSB reset sequence, the Host Control
+ * Register must be programmed to bring the USB core and various phy
+ * components out of reset.
+ */
+ ssb_device_enable(dev, 0);
+ ssb_write32(dev, 0x200, 0x7ff);
@@ -239,7 +235,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+ udelay(1);
+
+ /* Work around for 5354 failures */
+ if ((dev->id.revision == 2) && (dev->bus->chip_id == 0x5354)) {
+ if (dev->id.revision == 2 && dev->bus->chip_id == 0x5354) {
+ /* Change syn01 reg */
+ tmp = 0x00fe00fe;
+ ssb_write32(dev, 0x894, tmp);