From 0596954681859f1b7b7adfd58fa738c09ed2affa Mon Sep 17 00:00:00 2001 From: John Crispin Date: Mon, 18 Jul 2011 18:04:12 +0200 Subject: MIPS: Lantiq: Fix setting the PCI bus speed on AR9 The bits used to set the PCI bus speed on AR9 are slightly different to those used on Danube. Signed-off-by: John Crispin Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2614/ Signed-off-by: Ralf Baechle --- arch/mips/pci/pci-lantiq.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'arch/mips') diff --git a/arch/mips/pci/pci-lantiq.c b/arch/mips/pci/pci-lantiq.c index 603d7493e96..8656388b34b 100644 --- a/arch/mips/pci/pci-lantiq.c +++ b/arch/mips/pci/pci-lantiq.c @@ -171,8 +171,13 @@ static int __devinit ltq_pci_startup(struct ltq_pci_data *conf) u32 temp_buffer; /* set clock to 33Mhz */ - ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) & ~0xf00000, LTQ_CGU_IFCCR); - ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) | 0x800000, LTQ_CGU_IFCCR); + if (ltq_is_ar9()) { + ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) & ~0x1f00000, LTQ_CGU_IFCCR); + ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) | 0xe00000, LTQ_CGU_IFCCR); + } else { + ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) & ~0xf00000, LTQ_CGU_IFCCR); + ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) | 0x800000, LTQ_CGU_IFCCR); + } /* external or internal clock ? */ if (conf->clock) { -- cgit v1.2.3