From: festevam@gmail.com (Fabio Estevam)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/2] ARM: mx27_3ds: Add VPU support
Date: Wed, 10 Oct 2012 00:29:30 -0300 [thread overview]
Message-ID: <1349839770-13848-2-git-send-email-festevam@gmail.com> (raw)
In-Reply-To: <1349839770-13848-1-git-send-email-festevam@gmail.com>
From: Fabio Estevam <fabio.estevam@freescale.com>
mx27 has a VPU (Video Processing Unit) block that allows doing H264/MPEG4
decoding and encoding in hardware.
Add support for it.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
arch/arm/mach-imx/mach-mx27_3ds.c | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-imx/mach-mx27_3ds.c b/arch/arm/mach-imx/mach-mx27_3ds.c
index d3b9a60..3ef8548 100644
--- a/arch/arm/mach-imx/mach-mx27_3ds.c
+++ b/arch/arm/mach-imx/mach-mx27_3ds.c
@@ -500,6 +500,21 @@ static void __init mx27pdk_init_camera(void)
return;
}
+static void __init mx27pdk_init_vpu(void)
+{
+ struct platform_device *pdev;
+ int dma;
+
+ pdev = imx27_add_coda();
+ dma = dma_declare_coherent_memory(&pdev->dev,
+ mx2_camera_base + MX27PDK_CAM_BUF_SIZE,
+ mx2_camera_base + MX27PDK_CAM_BUF_SIZE,
+ MX27PDK_CAM_BUF_SIZE,
+ DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
+ if (!(dma & DMA_MEMORY_MAP))
+ return;
+}
+
static const struct imxi2c_platform_data mx27_3ds_i2c0_data __initconst = {
.bitrate = 100000,
};
@@ -553,6 +568,7 @@ static void __init mx27pdk_init(void)
imx27_add_imx_ssi(0, &mx27_3ds_ssi_pdata);
imx_add_platform_device("imx_mc13783", 0, NULL, 0, NULL, 0);
+ mx27pdk_init_vpu();
}
static void __init mx27pdk_timer_init(void)
@@ -567,7 +583,7 @@ static struct sys_timer mx27pdk_timer = {
static void __init mx27pdk_reserve(void)
{
/* reserve MX27_3DS_CAMERA_BUF_SIZE bytes for mx2-camera */
- mx2_camera_base = arm_memblock_steal(MX27PDK_CAM_BUF_SIZE,
+ mx2_camera_base = arm_memblock_steal(3 * MX27PDK_CAM_BUF_SIZE,
MX27PDK_CAM_BUF_SIZE);
}
--
1.7.9.5
next prev parent reply other threads:[~2012-10-10 3:29 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-10 3:29 [PATCH 1/2] ARM: mx27_3ds: Reserve memory for camera usage Fabio Estevam
2012-10-10 3:29 ` Fabio Estevam [this message]
2012-10-10 6:51 ` Gaëtan Carlier
2012-10-10 7:52 ` Sascha Hauer
2012-10-16 4:08 ` Fabio Estevam
2012-10-16 7:13 ` Sascha Hauer
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