diff options
| -rw-r--r-- | arch/arm/mach-kirkwood/common.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-kirkwood/pcie.c | 8 |
2 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h index 95bb0a73adf..a35b8623577 100644 --- a/arch/arm/mach-kirkwood/common.h +++ b/arch/arm/mach-kirkwood/common.h @@ -32,6 +32,7 @@ void kirkwood_init_irq(void); extern struct mbus_dram_target_info kirkwood_mbus_dram_info; void kirkwood_setup_cpu_mbus(void); +void kirkwood_enable_pcie(void); void kirkwood_pcie_id(u32 *dev, u32 *rev); void kirkwood_ehci_init(void); diff --git a/arch/arm/mach-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c index 513ad3102d7..ca294ff6d5b 100644 --- a/arch/arm/mach-kirkwood/pcie.c +++ b/arch/arm/mach-kirkwood/pcie.c @@ -18,8 +18,16 @@ #include <mach/bridge-regs.h> #include "common.h" +void kirkwood_enable_pcie(void) +{ + u32 curr = readl(CLOCK_GATING_CTRL); + if (!(curr & CGC_PEX0)) + writel(curr | CGC_PEX0, CLOCK_GATING_CTRL); +} + void __init kirkwood_pcie_id(u32 *dev, u32 *rev) { + kirkwood_enable_pcie(); *dev = orion_pcie_dev_id((void __iomem *)PCIE_VIRT_BASE); *rev = orion_pcie_rev((void __iomem *)PCIE_VIRT_BASE); } |