From c155089844463b20730d1b4f74ce0c7ba93faf71 Mon Sep 17 00:00:00 2001 From: hauke Date: Thu, 4 Oct 2012 15:45:54 +0000 Subject: [PATCH] [brcm47xx]: 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. git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33620 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- ...-do-not-initialize-deactivated-PCIe-cores.patch | 26 ++++++++++++++++++++++ .../patches-3.3/240-bcma-pcie-config-access.patch | 12 +++++----- 2 files changed, 32 insertions(+), 6 deletions(-) create mode 100644 target/linux/brcm47xx/patches-3.3/204-bcma-do-not-initialize-deactivated-PCIe-cores.patch diff --git a/target/linux/brcm47xx/patches-3.3/204-bcma-do-not-initialize-deactivated-PCIe-cores.patch b/target/linux/brcm47xx/patches-3.3/204-bcma-do-not-initialize-deactivated-PCIe-cores.patch new file mode 100644 index 0000000000..302ac8d954 --- /dev/null +++ b/target/linux/brcm47xx/patches-3.3/204-bcma-do-not-initialize-deactivated-PCIe-cores.patch @@ -0,0 +1,26 @@ +--- a/drivers/bcma/driver_pci_host.c ++++ b/drivers/bcma/driver_pci_host.c +@@ -35,11 +35,6 @@ bool __devinit bcma_core_pci_is_in_hostm + chipid_top != 0x5300) + return false; + +- if (bus->sprom.boardflags_lo & BCMA_CORE_PCI_BFL_NOPCI) { +- bcma_info(bus, "This PCI core is disabled and not working\n"); +- return false; +- } +- + bcma_core_enable(pc->core, 0); + + return !mips_busprobe32(tmp, pc->core->io_addr); +@@ -396,6 +391,11 @@ void __devinit bcma_core_pci_hostmode_in + + bcma_info(bus, "PCIEcore in host mode found\n"); + ++ if (bus->sprom.boardflags_lo & BCMA_CORE_PCI_BFL_NOPCI) { ++ bcma_info(bus, "This PCIE core is disabled and not working\n"); ++ return; ++ } ++ + pc_host = kzalloc(sizeof(*pc_host), GFP_KERNEL); + if (!pc_host) { + bcma_err(bus, "can not allocate memory"); diff --git a/target/linux/brcm47xx/patches-3.3/240-bcma-pcie-config-access.patch b/target/linux/brcm47xx/patches-3.3/240-bcma-pcie-config-access.patch index 874c249b0f..91b8a4191c 100644 --- a/target/linux/brcm47xx/patches-3.3/240-bcma-pcie-config-access.patch +++ b/target/linux/brcm47xx/patches-3.3/240-bcma-pcie-config-access.patch @@ -1,6 +1,6 @@ --- a/drivers/bcma/driver_pci_host.c +++ b/drivers/bcma/driver_pci_host.c -@@ -99,19 +99,19 @@ static int bcma_extpci_read_config(struc +@@ -94,19 +94,19 @@ static int bcma_extpci_read_config(struc if (dev == 0) { /* we support only two functions on device 0 */ if (func > 1) @@ -23,7 +23,7 @@ val = pcicore_read32(pc, addr); } } else { -@@ -127,8 +127,6 @@ static int bcma_extpci_read_config(struc +@@ -122,8 +122,6 @@ static int bcma_extpci_read_config(struc val = 0xffffffff; goto unmap; } @@ -32,7 +32,7 @@ } val >>= (8 * (off & 3)); -@@ -156,7 +154,7 @@ static int bcma_extpci_write_config(stru +@@ -151,7 +149,7 @@ static int bcma_extpci_write_config(stru const void *buf, int len) { int err = -EINVAL; @@ -41,7 +41,7 @@ void __iomem *mmio = 0; u16 chipid = pc->core->bus->chipinfo.id; -@@ -164,16 +162,22 @@ static int bcma_extpci_write_config(stru +@@ -159,16 +157,22 @@ static int bcma_extpci_write_config(stru if (unlikely(len != 1 && len != 2 && len != 4)) goto out; if (dev == 0) { @@ -70,7 +70,7 @@ } } else { addr = bcma_get_cfgspace_addr(pc, dev, func, off); -@@ -192,12 +196,10 @@ static int bcma_extpci_write_config(stru +@@ -187,12 +191,10 @@ static int bcma_extpci_write_config(stru switch (len) { case 1: @@ -83,7 +83,7 @@ val &= ~(0xFFFF << (8 * (off & 3))); val |= *((const u16 *)buf) << (8 * (off & 3)); break; -@@ -205,13 +207,14 @@ static int bcma_extpci_write_config(stru +@@ -200,13 +202,14 @@ static int bcma_extpci_write_config(stru val = *((const u32 *)buf); break; } -- 2.11.0