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Commit a1dfe9c7 authored by Michal Simek's avatar Michal Simek
Browse files

fbdev/xilinxfb: Microblaze driver support 



DCR bus is natively used for PowerPC. Microblaze has
no infrastructure for compile DCR that's why is necessary
to exclude it.

Signed-off-by: default avatarMichal Simek <monstr@monstr.eu>
Acked-by: default avatarGrant Likely <grant.likely@secretlab.ca>
CC: Andrei Konovalov <akonovalov@ru.mvista.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: linux-kernel@vger.kernel.org
parent 1180b28c

drivers/video/xilinxfb.c

+18 −6
Original line number Diff line number Diff line
@@ -32,10 +32,14 @@ 
#include <linux/dma-mapping.h>

#include <linux/of_device.h>

#include <linux/of_platform.h>

#include <linux/of_address.h>

#include <linux/io.h>

#include <linux/xilinxfb.h>

#include <linux/slab.h>



#ifdef CONFIG_PPC_DCR

#include <asm/dcr.h>

#endif



#define DRIVER_NAME		"xilinxfb"
@@ -123,10 +127,10 @@ struct xilinxfb_drvdata { 
						registers */

	void __iomem	*regs;		/* virt. address of the control

						registers */



#ifdef CONFIG_PPC_DCR

	dcr_host_t      dcr_host;

	unsigned int    dcr_len;



#endif

	void		*fb_virt;	/* virt. address of the frame buffer */

	dma_addr_t	fb_phys;	/* phys. address of the frame buffer */

	int		fb_alloced;	/* Flag, was the fb memory alloced? */
@@ -152,9 +156,10 @@ static void xilinx_fb_out_be32(struct xilinxfb_drvdata *drvdata, u32 offset, 
{

	if (drvdata->flags & PLB_ACCESS_FLAG)

		out_be32(drvdata->regs + (offset << 2), val);

#ifdef CONFIG_PPC_DCR

	else

		dcr_write(drvdata->dcr_host, offset, val);



#endif

}



static int
@@ -383,8 +388,11 @@ static int xilinxfb_release(struct device *dev) 
	if (drvdata->flags & PLB_ACCESS_FLAG) {

		iounmap(drvdata->regs);

		release_mem_region(drvdata->regs_phys, 8);

	} else

	}

#ifdef CONFIG_PPC_DCR

	else

		dcr_unmap(drvdata->dcr_host, drvdata->dcr_len);

#endif



	kfree(drvdata);

	dev_set_drvdata(dev, NULL);
@@ -404,7 +412,7 @@ xilinxfb_of_probe(struct platform_device *op, const struct of_device_id *match) 
	u32 tft_access;

	struct xilinxfb_platform_data pdata;

	struct resource res;

	int size, rc, start;

	int size, rc;

	struct xilinxfb_drvdata *drvdata;



	/* Copy with the default pdata (not a ptr reference!) */
@@ -437,7 +445,10 @@ xilinxfb_of_probe(struct platform_device *op, const struct of_device_id *match) 
			dev_err(&op->dev, "invalid address\n");

			goto err;

		}

	} else {

	}

#ifdef CONFIG_PPC_DCR

	else {

		int start;

		res.start = 0;

		start = dcr_resource_start(op->dev.of_node, 0);

		drvdata->dcr_len = dcr_resource_len(op->dev.of_node, 0);
@@ -447,6 +458,7 @@ xilinxfb_of_probe(struct platform_device *op, const struct of_device_id *match) 
			goto err;

		}

	}

#endif



	prop = of_get_property(op->dev.of_node, "phys-size", &size);

	if ((prop) && (size >= sizeof(u32)*2)) {