From 123f102ec093fba6967066acdf9beb637df2e2d1 Mon Sep 17 00:00:00 2001 From: Matthias Fuchs Date: Wed, 8 Jul 2009 13:43:55 +0200 Subject: ppc4xx: Move 405EP pci code from cpu_init_f() to __pci_pre_init() This patch moves some basic PCI initialisation from the 4xx cpu_init_f() to cpu/ppc4xx/4xx_pci.c. The original cpu_init_f() function enabled the 405EP's internal arbiter in all situations. Also the HCE bit in cpc0_pci is always set. The first is not really wanted for PCI adapter designs and the latter is a general bug for PCI adapter U-Boots. Because it enables PCI configuration by the system CPU even when the PCI configuration has not been setup by the 405EP. The one and only correct place is in pci_405gp_init() (see "Set HCE bit" comment). So for compatibility reasons the arbiter is still enabled in any case, but from weak pci_pre_init() so that it can be replaced by board specific code. Signed-off-by: Matthias Fuchs Signed-off-by: Stefan Roese --- cpu/ppc4xx/cpu_init.c | 5 ----- 1 file changed, 5 deletions(-) (limited to 'cpu/ppc4xx/cpu_init.c') diff --git a/cpu/ppc4xx/cpu_init.c b/cpu/ppc4xx/cpu_init.c index 577d33f..bbd795d 100644 --- a/cpu/ppc4xx/cpu_init.c +++ b/cpu/ppc4xx/cpu_init.c @@ -174,11 +174,6 @@ cpu_init_f (void) * Set EMAC noise filter bits */ mtdcr(cpc0_epctl, CPC0_EPRCSR_E0NFE | CPC0_EPRCSR_E1NFE); - - /* - * Enable the internal PCI arbiter - */ - mtdcr(cpc0_pci, mfdcr(cpc0_pci) | CPC0_PCI_HOST_CFG_EN | CPC0_PCI_ARBIT_EN); #endif /* CONFIG_405EP */ #if defined(CONFIG_SYS_4xx_GPIO_TABLE) -- cgit v1.1