ARM: add dma_zone_size to the machine_desc structure

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index ed11fb08b05a..e0db84d7e384 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -916,6 +916,12 @@ void __init setup_arch(char **cmdline_p)
         cpu_init();
         tcm_init();
 
+#ifdef CONFIG_ZONE_DMA
+        if (mdesc->dma_zone_size) {
+                extern unsigned long arm_dma_zone_size;
+                arm_dma_zone_size = mdesc->dma_zone_size;
+        }
+#endif
 #ifdef CONFIG_MULTI_IRQ_HANDLER
         handle_arch_irq = mdesc->handle_irq;
 #endif