diff options
Diffstat (limited to 'arch/powerpc/sysdev')
| -rw-r--r-- | arch/powerpc/sysdev/ppc4xx_pci.c | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/arch/powerpc/sysdev/ppc4xx_pci.c b/arch/powerpc/sysdev/ppc4xx_pci.c index 0538980..a656dc0 100644 --- a/arch/powerpc/sysdev/ppc4xx_pci.c +++ b/arch/powerpc/sysdev/ppc4xx_pci.c @@ -49,6 +49,15 @@ extern unsigned long total_memory; #define RES_TO_U32_HIGH(val) (0) #endif +static inline int ppc440spe_revA(void) +{ + /* Catch both 440SPe variants, with and without RAID6 support */ + if ((mfspr(SPRN_PVR) & 0xffefffff) == 0x53421890) + return 1; + else + return 0; +} + static void fixup_ppc4xx_pci_bridge(struct pci_dev *dev) { struct pci_controller *hose; @@ -516,8 +525,7 @@ static void __init ppc4xx_probe_pcix_bridge(struct device_node *np) * * We support 3 parts currently based on the compatible property: * - * ibm,plb-pciex-440speA - * ibm,plb-pciex-440speB + * ibm,plb-pciex-440spe * ibm,plb-pciex-405ex * * Anything else will be rejected for now as they are all subtly @@ -688,7 +696,7 @@ static int ppc440spe_pciex_init_port_hw(struct ppc4xx_pciex_port *port) mtdcri(SDR0, port->sdr_base + PESDRn_DLPSET, val); mtdcri(SDR0, port->sdr_base + PESDRn_UTLSET1, 0x20222222); - if (of_device_is_compatible(port->node, "ibm,plb-pciex-440speA")) + if (ppc440spe_revA()) mtdcri(SDR0, port->sdr_base + PESDRn_UTLSET2, 0x11000000); mtdcri(SDR0, port->sdr_base + PESDRn_440SPE_HSSL0SET1, 0x35000000); mtdcri(SDR0, port->sdr_base + PESDRn_440SPE_HSSL1SET1, 0x35000000); @@ -767,7 +775,6 @@ static struct ppc4xx_pciex_hwops ppc440speB_pcie_hwops __initdata = .setup_utl = ppc440speB_pciex_init_utl, }; - #endif /* CONFIG_44x */ #ifdef CONFIG_40x @@ -881,10 +888,12 @@ static int __init ppc4xx_pciex_check_core_init(struct device_node *np) return 0; #ifdef CONFIG_44x - if (of_device_is_compatible(np, "ibm,plb-pciex-440speA")) - ppc4xx_pciex_hwops = &ppc440speA_pcie_hwops; - else if (of_device_is_compatible(np, "ibm,plb-pciex-440speB")) - ppc4xx_pciex_hwops = &ppc440speB_pcie_hwops; + if (of_device_is_compatible(np, "ibm,plb-pciex-440spe")) { + if (ppc440spe_revA()) + ppc4xx_pciex_hwops = &ppc440speA_pcie_hwops; + else + ppc4xx_pciex_hwops = &ppc440speB_pcie_hwops; + } #endif /* CONFIG_44x */ #ifdef CONFIG_40x if (of_device_is_compatible(np, "ibm,plb-pciex-405ex")) |
