From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ext-nj2ut-10.online-age.net (ext-nj2ut-10.online-age.net [64.14.54.240]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "ext-nj2ut.online-age.net", Issuer "Savvis Communications Root CA" (not verified)) by ozlabs.org (Postfix) with ESMTPS id 36888DDDE3 for ; Mon, 29 Sep 2008 22:31:52 +1000 (EST) Received: from int-nj2ut-6.online-age.net (int-nj2ut-6.online-age.net [3.159.237.75]) by ext-nj2ut-10.online-age.net (8.13.6/8.13.6/20051114-SVVS-TLS-DNSBL) with ESMTP id m8TCVghO024047 for ; Mon, 29 Sep 2008 08:31:42 -0400 Received: from alpmlip01.e2k.ad.ge.com (int-nj2ut-6.online-age.net [3.159.237.75]) by int-nj2ut-6.online-age.net (8.13.6/8.13.6/20050510-SVVS) with ESMTP id m8TCVf7v018049 for ; Mon, 29 Sep 2008 08:31:42 -0400 From: Martyn Welch Subject: [PATCH] powerpc: Correct USB support for GE Fanuc SBC610 To: linuxppc-dev@ozlabs.org Date: Mon, 29 Sep 2008 13:35:15 +0100 Message-ID: <20080929123515.26226.91402.stgit@ubuntu8041.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Cc: paulus@samba.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Support for the SBC610 VPX Single Board Computer from GE Fanuc (PowerPC MPC8641D). Fixup to correctly reconfigure USB, provided by an NEC uPD720101, after device is reset. This requires a set of chip specific registers in the devices configuration space to be correctly written, enabling all ports and switching the device to use an external 48-MHz Oscillator. Signed-off-by: Martyn Welch --- arch/powerpc/platforms/86xx/gef_sbc610.c | 17 +++++++++++++++++ 1 files changed, 17 insertions(+), 0 deletions(-) diff --git a/arch/powerpc/platforms/86xx/gef_sbc610.c b/arch/powerpc/platforms/86xx/gef_sbc610.c index 3543a9e..605678c 100644 --- a/arch/powerpc/platforms/86xx/gef_sbc610.c +++ b/arch/powerpc/platforms/86xx/gef_sbc610.c @@ -12,6 +12,8 @@ * * Based on: mpc86xx_hpcn.c (MPC86xx HPCN board specific routines) * Copyright 2006 Freescale Semiconductor Inc. + * + * NEC fixup adapted from arch/mips/pci/fixup-lm2e.c */ #include @@ -83,6 +85,21 @@ static void gef_sbc610_show_cpuinfo(struct seq_file *m) seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024)); } +static void __init gef_sbc610_nec_fixup(struct pci_dev *pdev) +{ + unsigned int val; + + printk(KERN_INFO "Running NEC uPD720101 Fixup\n"); + + /* Ensure ports 1, 2, 3, 4 & 5 are enabled */ + pci_read_config_dword(pdev, 0xe0, &val); + pci_write_config_dword(pdev, 0xe0, (val & ~7) | 0x5); + + /* System clock is 48-MHz Oscillator and EHCI Enabled. */ + pci_write_config_dword(pdev, 0xe4, 1 << 5); +} +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_USB, + gef_sbc610_nec_fixup); /* * Called very early, device-tree isn't unflattened