ARM: shmobile: Use 64-bit dma_addr_t on r8a7790/r8a7791

Some on-chip devices on r8a7790 and r8a7791 can do
bus mastering and access more than 32-bits of address
space. Select ARCH_DMA_ADDR_T_64BIT when LPAE is set
in case of multiplatform and legacy SoC support.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index 338640631e08234ebcab2a5616dec8240e68aed8..0272cd7b6f27d4a9cf5c2bd181edc7f3a3177c0d 100644 (file)
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -13,6 +13,7 @@ config ARCH_SHMOBILE_MULTI
        select ARM_GIC
        select MIGHT_HAVE_CACHE_L2X0
        select MIGHT_HAVE_PCI
+       select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE
        select NO_IOPORT
        select PINCTRL
        select ARCH_REQUIRE_GPIOLIB
@@ -123,6 +124,7 @@ config ARCH_R8A7790
        select MIGHT_HAVE_PCI
        select SH_CLK_CPG
        select RENESAS_IRQC
+       select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE
 
 config ARCH_R8A7791
        bool "R-Car M2 (R8A77910)"
@@ -132,6 +134,7 @@ config ARCH_R8A7791
        select MIGHT_HAVE_PCI
        select SH_CLK_CPG
        select RENESAS_IRQC
+       select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE
 
 config ARCH_EMEV2
        bool "Emma Mobile EV2"