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-rw-r--r--arch/powerpc/platforms/86xx/Kconfig1
-rw-r--r--arch/powerpc/platforms/86xx/mpc86xx_hpcn.c15
2 files changed, 16 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/86xx/Kconfig b/arch/powerpc/platforms/86xx/Kconfig
index fdaf4ddaa955..9c7b64a3402b 100644
--- a/arch/powerpc/platforms/86xx/Kconfig
+++ b/arch/powerpc/platforms/86xx/Kconfig
@@ -15,6 +15,7 @@ config MPC8641_HPCN
15 select DEFAULT_UIMAGE 15 select DEFAULT_UIMAGE
16 select FSL_ULI1575 16 select FSL_ULI1575
17 select HAS_RAPIDIO 17 select HAS_RAPIDIO
18 select SWIOTLB
18 help 19 help
19 This option enables support for the MPC8641 HPCN board. 20 This option enables support for the MPC8641 HPCN board.
20 21
diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
index 7e9e83c04a8a..66327024a6a6 100644
--- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
+++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
@@ -19,6 +19,7 @@
19#include <linux/delay.h> 19#include <linux/delay.h>
20#include <linux/seq_file.h> 20#include <linux/seq_file.h>
21#include <linux/of_platform.h> 21#include <linux/of_platform.h>
22#include <linux/lmb.h>
22 23
23#include <asm/system.h> 24#include <asm/system.h>
24#include <asm/time.h> 25#include <asm/time.h>
@@ -27,6 +28,7 @@
27#include <asm/prom.h> 28#include <asm/prom.h>
28#include <mm/mmu_decl.h> 29#include <mm/mmu_decl.h>
29#include <asm/udbg.h> 30#include <asm/udbg.h>
31#include <asm/swiotlb.h>
30 32
31#include <asm/mpic.h> 33#include <asm/mpic.h>
32 34
@@ -70,7 +72,9 @@ mpc86xx_hpcn_setup_arch(void)
70{ 72{
71#ifdef CONFIG_PCI 73#ifdef CONFIG_PCI
72 struct device_node *np; 74 struct device_node *np;
75 struct pci_controller *hose;
73#endif 76#endif
77 dma_addr_t max = 0xffffffff;
74 78
75 if (ppc_md.progress) 79 if (ppc_md.progress)
76 ppc_md.progress("mpc86xx_hpcn_setup_arch()", 0); 80 ppc_md.progress("mpc86xx_hpcn_setup_arch()", 0);
@@ -83,6 +87,9 @@ mpc86xx_hpcn_setup_arch(void)
83 fsl_add_bridge(np, 1); 87 fsl_add_bridge(np, 1);
84 else 88 else
85 fsl_add_bridge(np, 0); 89 fsl_add_bridge(np, 0);
90 hose = pci_find_hose_for_OF_device(np);
91 max = min(max, hose->dma_window_base_cur +
92 hose->dma_window_size);
86 } 93 }
87 94
88 ppc_md.pci_exclude_device = mpc86xx_exclude_device; 95 ppc_md.pci_exclude_device = mpc86xx_exclude_device;
@@ -94,6 +101,13 @@ mpc86xx_hpcn_setup_arch(void)
94#ifdef CONFIG_SMP 101#ifdef CONFIG_SMP
95 mpc86xx_smp_init(); 102 mpc86xx_smp_init();
96#endif 103#endif
104
105#ifdef CONFIG_SWIOTLB
106 if (lmb_end_of_DRAM() > max) {
107 ppc_swiotlb_enable = 1;
108 set_pci_dma_ops(&swiotlb_pci_dma_ops);
109 }
110#endif
97} 111}
98 112
99 113
@@ -158,6 +172,7 @@ static int __init declare_of_platform_devices(void)
158 return 0; 172 return 0;
159} 173}
160machine_device_initcall(mpc86xx_hpcn, declare_of_platform_devices); 174machine_device_initcall(mpc86xx_hpcn, declare_of_platform_devices);
175machine_arch_initcall(mpc86xx_hpcn, swiotlb_setup_bus_notifier);
161 176
162define_machine(mpc86xx_hpcn) { 177define_machine(mpc86xx_hpcn) {
163 .name = "MPC86xx HPCN", 178 .name = "MPC86xx HPCN",