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From bf571a571b090c16cd49458126e996243d8a2626 Mon Sep 17 00:00:00 2001
From: popcornmix <popcornmix@gmail.com>
Date: Thu, 28 Mar 2013 00:10:32 +0000
Subject: [PATCH 039/174] bcm2708: Add vc_cma driver to enable use of CMA
---
arch/arm/mach-bcm2708/bcm2708.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
--- a/arch/arm/mach-bcm2708/bcm2708.c
+++ b/arch/arm/mach-bcm2708/bcm2708.c
@@ -60,6 +60,11 @@
#include "armctrl.h"
#include "clock.h"
+#ifdef CONFIG_BCM_VC_CMA
+#include <linux/broadcom/vc_cma.h>
+#endif
+
+
/* Effectively we have an IOMMU (ARM<->VideoCore map) that is set up to
* give us IO access only to 64Mbytes of physical memory (26 bits). We could
* represent this window by setting our dmamasks to 26 bits but, in fact
@@ -693,6 +698,9 @@ void __init bcm2708_init(void)
{
int i;
+#if defined(CONFIG_BCM_VC_CMA)
+ vc_cma_early_init();
+#endif
printk("bcm2708.uart_clock = %d\n", uart_clock);
pm_power_off = bcm2708_power_off;
@@ -889,6 +897,13 @@ void __init bcm2708_init_early(void)
init_dma_coherent_pool_size(SZ_4M);
}
+static void __init board_reserve(void)
+{
+#if defined(CONFIG_BCM_VC_CMA)
+ vc_cma_reserve();
+#endif
+}
+
MACHINE_START(BCM2708, "BCM2708")
/* Maintainer: Broadcom Europe Ltd. */
.map_io = bcm2708_map_io,
@@ -897,6 +912,7 @@ MACHINE_START(BCM2708, "BCM2708")
.init_machine = bcm2708_init,
.init_early = bcm2708_init_early,
.restart = bcm2708_restart,
+ .reserve = board_reserve,
MACHINE_END
module_param(boardrev, uint, 0644);
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