diff options
Diffstat (limited to 'arch/powerpc/platforms/85xx/mpc85xx_mds.c')
| -rw-r--r-- | arch/powerpc/platforms/85xx/mpc85xx_mds.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c index b2c0a4319973..77f90b356356 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c @@ -33,6 +33,7 @@ #include <linux/of_platform.h> #include <linux/of_device.h> #include <linux/phy.h> +#include <linux/lmb.h> #include <asm/system.h> #include <asm/atomic.h> @@ -49,6 +50,7 @@ #include <asm/qe.h> #include <asm/qe_ic.h> #include <asm/mpic.h> +#include <asm/swiotlb.h> #undef DEBUG #ifdef DEBUG @@ -155,6 +157,10 @@ static void __init mpc85xx_mds_setup_arch(void) { struct device_node *np; static u8 __iomem *bcsr_regs = NULL; +#ifdef CONFIG_PCI + struct pci_controller *hose; +#endif + dma_addr_t max = 0xffffffff; if (ppc_md.progress) ppc_md.progress("mpc85xx_mds_setup_arch()", 0); @@ -179,6 +185,10 @@ static void __init mpc85xx_mds_setup_arch(void) fsl_add_bridge(np, 1); else fsl_add_bridge(np, 0); + + hose = pci_find_hose_for_OF_device(np); + max = min(max, hose->dma_window_base_cur + + hose->dma_window_size); } } #endif @@ -227,6 +237,13 @@ static void __init mpc85xx_mds_setup_arch(void) iounmap(bcsr_regs); } #endif /* CONFIG_QUICC_ENGINE */ + +#ifdef CONFIG_SWIOTLB + if (lmb_end_of_DRAM() > max) { + ppc_swiotlb_enable = 1; + set_pci_dma_ops(&swiotlb_pci_dma_ops); + } +#endif } @@ -281,6 +298,9 @@ static int __init mpc85xx_publish_devices(void) machine_device_initcall(mpc8568_mds, mpc85xx_publish_devices); machine_device_initcall(mpc8569_mds, mpc85xx_publish_devices); +machine_arch_initcall(mpc8568_mds, swiotlb_setup_bus_notifier); +machine_arch_initcall(mpc8569_mds, swiotlb_setup_bus_notifier); + static void __init mpc85xx_mds_pic_init(void) { struct mpic *mpic; |