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