Commit df595a9d authored by Santosh Shilimkar's avatar Santosh Shilimkar
Browse files

ARM: keystone: enable DMA zone for LPAE 



Keystone II peripheral devices support 32-bit DMA and hence can access only
first 2GB of the memory address space. So set the platform dma_zone_size
to handle that case.

Signed-off-by: default avatarSantosh Shilimkar <santosh.shilimkar@ti.com>
parent 89b3feef

arch/arm/mach-keystone/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -12,6 +12,7 @@ config ARCH_KEYSTONE 
	select COMMON_CLK_KEYSTONE

	select TI_EDMA

	select ARCH_SUPPORTS_BIG_ENDIAN

	select ZONE_DMA if ARM_LPAE

	help

	  Support for boards based on the Texas Instruments Keystone family of

	  SoCs.

arch/arm/mach-keystone/keystone.c

+3 −0
Original line number Diff line number Diff line
@@ -68,6 +68,9 @@ void keystone_restart(enum reboot_mode mode, const char *cmd) 
}



DT_MACHINE_START(KEYSTONE, "Keystone")

#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)

	.dma_zone_size	= SZ_2G,

#endif

	.smp		= smp_ops(keystone_smp_ops),

	.init_machine	= keystone_init,

	.dt_compat	= keystone_match,

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