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: Michal Simek <monstr@monstr.eu>
Acked-by: Grant 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

diff --git a/drivers/video/xilinxfb.c b/drivers/video/xilinxfb.c
index 0c9ce88e95e8880b8361973390efb2a989bbe142..68bd23476c64087b34a8cf22d5da491f7e635d9f 100644 (file)
--- a/drivers/video/xilinxfb.c
+++ b/drivers/video/xilinxfb.c
@@ -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)) {