diff options
Diffstat (limited to 'arch/powerpc/platforms/85xx/mpc8536_ds.c')
| -rw-r--r-- | arch/powerpc/platforms/85xx/mpc8536_ds.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/85xx/mpc8536_ds.c b/arch/powerpc/platforms/85xx/mpc8536_ds.c index 63efca20d7b..055ff417bae 100644 --- a/arch/powerpc/platforms/85xx/mpc8536_ds.c +++ b/arch/powerpc/platforms/85xx/mpc8536_ds.c @@ -17,6 +17,7 @@ #include <linux/seq_file.h> #include <linux/interrupt.h> #include <linux/of_platform.h> +#include <linux/lmb.h> #include <asm/system.h> #include <asm/time.h> @@ -26,6 +27,7 @@ #include <asm/prom.h> #include <asm/udbg.h> #include <asm/mpic.h> +#include <asm/swiotlb.h> #include <sysdev/fsl_soc.h> #include <sysdev/fsl_pci.h> @@ -65,7 +67,9 @@ static void __init mpc8536_ds_setup_arch(void) { #ifdef CONFIG_PCI struct device_node *np; + struct pci_controller *hose; #endif + dma_addr_t max = 0xffffffff; if (ppc_md.progress) ppc_md.progress("mpc8536_ds_setup_arch()", 0); @@ -80,11 +84,22 @@ static void __init mpc8536_ds_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 +#ifdef CONFIG_SWIOTLB + if (lmb_end_of_DRAM() > max) { + ppc_swiotlb_enable = 1; + set_pci_dma_ops(&swiotlb_pci_dma_ops); + } +#endif + printk("MPC8536 DS board from Freescale Semiconductor\n"); } @@ -102,6 +117,8 @@ static int __init mpc8536_ds_publish_devices(void) } machine_device_initcall(mpc8536_ds, mpc8536_ds_publish_devices); +machine_arch_initcall(mpc8536_ds, swiotlb_setup_bus_notifier); + /* * Called very early, device-tree isn't unflattened */ |