diff options
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/85xx/Kconfig | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/85xx/corenet_generic.c | 14 | ||||
| -rw-r--r-- | arch/powerpc/platforms/85xx/qemu_e500.c | 10 |
3 files changed, 25 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig index 0c1e6903597e..f22635a71d01 100644 --- a/arch/powerpc/platforms/85xx/Kconfig +++ b/arch/powerpc/platforms/85xx/Kconfig @@ -276,7 +276,7 @@ config CORENET_GENERIC For 64bit kernel, the following boards are supported: T208x QDS/RDB, T4240 QDS/RDB and B4 QDS The following boards are supported for both 32bit and 64bit kernel: - P5020 DS, P5040 DS and T104xQDS + P5020 DS, P5040 DS and T104xQDS/RDB endif # FSL_SOC_BOOKE diff --git a/arch/powerpc/platforms/85xx/corenet_generic.c b/arch/powerpc/platforms/85xx/corenet_generic.c index d22dd85e50bf..e56b89a792ed 100644 --- a/arch/powerpc/platforms/85xx/corenet_generic.c +++ b/arch/powerpc/platforms/85xx/corenet_generic.c @@ -20,6 +20,7 @@ #include <asm/time.h> #include <asm/machdep.h> #include <asm/pci-bridge.h> +#include <asm/pgtable.h> #include <asm/ppc-pci.h> #include <mm/mmu_decl.h> #include <asm/prom.h> @@ -67,6 +68,16 @@ void __init corenet_gen_setup_arch(void) swiotlb_detect_4g(); +#if defined(CONFIG_FSL_PCI) && defined(CONFIG_ZONE_DMA32) + /* + * Inbound windows don't cover the full lower 4 GiB + * due to conflicts with PCICSRBAR and outbound windows, + * so limit the DMA32 zone to 2 GiB, to allow consistent + * allocations to succeed. + */ + limit_zone_pfn(ZONE_DMA32, 1UL << (31 - PAGE_SHIFT)); +#endif + pr_info("%s board\n", ppc_md.name); mpc85xx_qe_init(); @@ -129,6 +140,9 @@ static const char * const boards[] __initconst = { "fsl,B4220QDS", "fsl,T1040QDS", "fsl,T1042QDS", + "fsl,T1040RDB", + "fsl,T1042RDB", + "fsl,T1042RDB_PI", "keymile,kmcoge4", NULL }; diff --git a/arch/powerpc/platforms/85xx/qemu_e500.c b/arch/powerpc/platforms/85xx/qemu_e500.c index 7f2673293549..8ad2fe6f200a 100644 --- a/arch/powerpc/platforms/85xx/qemu_e500.c +++ b/arch/powerpc/platforms/85xx/qemu_e500.c @@ -18,6 +18,7 @@ #include <linux/kernel.h> #include <linux/of_fdt.h> #include <asm/machdep.h> +#include <asm/pgtable.h> #include <asm/time.h> #include <asm/udbg.h> #include <asm/mpic.h> @@ -44,6 +45,15 @@ static void __init qemu_e500_setup_arch(void) fsl_pci_assign_primary(); swiotlb_detect_4g(); +#if defined(CONFIG_FSL_PCI) && defined(CONFIG_ZONE_DMA32) + /* + * Inbound windows don't cover the full lower 4 GiB + * due to conflicts with PCICSRBAR and outbound windows, + * so limit the DMA32 zone to 2 GiB, to allow consistent + * allocations to succeed. + */ + limit_zone_pfn(ZONE_DMA32, 1UL << (31 - PAGE_SHIFT)); +#endif mpc85xx_smp_init(); } |
