mirror of https://gitee.com/openkylin/linux.git
bcma: do not initialize deactivated PCIe cores
Before it was tried to initialize the deactivated PCIe core in client mode, but this causes the SoC to hang. Just do not initialize it at all and ignore the core it is not working and nothing is connected to it when the specific bit is set in the boardflags. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -35,11 +35,6 @@ bool __devinit bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc)
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chipid_top != 0x5300)
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return false;
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if (bus->sprom.boardflags_lo & BCMA_CORE_PCI_BFL_NOPCI) {
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bcma_info(bus, "This PCI core is disabled and not working\n");
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return false;
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}
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bcma_core_enable(pc->core, 0);
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return !mips_busprobe32(tmp, pc->core->io_addr);
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@ -396,6 +391,11 @@ void __devinit bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc)
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bcma_info(bus, "PCIEcore in host mode found\n");
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if (bus->sprom.boardflags_lo & BCMA_CORE_PCI_BFL_NOPCI) {
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bcma_info(bus, "This PCIE core is disabled and not working\n");
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return;
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}
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pc_host = kzalloc(sizeof(*pc_host), GFP_KERNEL);
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if (!pc_host) {
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bcma_err(bus, "can not allocate memory");
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