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-rw-r--r--arch/arm/mach-omap2/fb.c102
1 files changed, 102 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/fb.c b/arch/arm/mach-omap2/fb.c
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index 000000000..0f8c8efe3
--- /dev/null
+++ b/arch/arm/mach-omap2/fb.c
@@ -0,0 +1,102 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Framebuffer device registration for TI OMAP platforms
+ *
+ * Copyright (C) 2006 Nokia Corporation
+ * Author: Imre Deak <imre.deak@nokia.com>
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/memblock.h>
+#include <linux/io.h>
+#include <linux/omapfb.h>
+#include <linux/dma-mapping.h>
+
+#include <asm/mach/map.h>
+
+#include "soc.h"
+#include "display.h"
+
+#ifdef CONFIG_OMAP2_VRFB
+
+/*
+ * The first memory resource is the register region for VRFB,
+ * the rest are VRFB virtual memory areas for each VRFB context.
+ */
+
+static const struct resource omap2_vrfb_resources[] = {
+ DEFINE_RES_MEM_NAMED(0x68008000u, 0x40, "vrfb-regs"),
+ DEFINE_RES_MEM_NAMED(0x70000000u, 0x4000000, "vrfb-area-0"),
+ DEFINE_RES_MEM_NAMED(0x74000000u, 0x4000000, "vrfb-area-1"),
+ DEFINE_RES_MEM_NAMED(0x78000000u, 0x4000000, "vrfb-area-2"),
+ DEFINE_RES_MEM_NAMED(0x7c000000u, 0x4000000, "vrfb-area-3"),
+};
+
+static const struct resource omap3_vrfb_resources[] = {
+ DEFINE_RES_MEM_NAMED(0x6C000180u, 0xc0, "vrfb-regs"),
+ DEFINE_RES_MEM_NAMED(0x70000000u, 0x4000000, "vrfb-area-0"),
+ DEFINE_RES_MEM_NAMED(0x74000000u, 0x4000000, "vrfb-area-1"),
+ DEFINE_RES_MEM_NAMED(0x78000000u, 0x4000000, "vrfb-area-2"),
+ DEFINE_RES_MEM_NAMED(0x7c000000u, 0x4000000, "vrfb-area-3"),
+ DEFINE_RES_MEM_NAMED(0xe0000000u, 0x4000000, "vrfb-area-4"),
+ DEFINE_RES_MEM_NAMED(0xe4000000u, 0x4000000, "vrfb-area-5"),
+ DEFINE_RES_MEM_NAMED(0xe8000000u, 0x4000000, "vrfb-area-6"),
+ DEFINE_RES_MEM_NAMED(0xec000000u, 0x4000000, "vrfb-area-7"),
+ DEFINE_RES_MEM_NAMED(0xf0000000u, 0x4000000, "vrfb-area-8"),
+ DEFINE_RES_MEM_NAMED(0xf4000000u, 0x4000000, "vrfb-area-9"),
+ DEFINE_RES_MEM_NAMED(0xf8000000u, 0x4000000, "vrfb-area-10"),
+ DEFINE_RES_MEM_NAMED(0xfc000000u, 0x4000000, "vrfb-area-11"),
+};
+
+int __init omap_init_vrfb(void)
+{
+ struct platform_device *pdev;
+ const struct resource *res;
+ unsigned int num_res;
+
+ if (cpu_is_omap24xx()) {
+ res = omap2_vrfb_resources;
+ num_res = ARRAY_SIZE(omap2_vrfb_resources);
+ } else if (cpu_is_omap34xx()) {
+ res = omap3_vrfb_resources;
+ num_res = ARRAY_SIZE(omap3_vrfb_resources);
+ } else {
+ return 0;
+ }
+
+ pdev = platform_device_register_resndata(NULL, "omapvrfb", -1,
+ res, num_res, NULL, 0);
+
+ return PTR_ERR_OR_ZERO(pdev);
+}
+#else
+int __init omap_init_vrfb(void) { return 0; }
+#endif
+
+#if IS_ENABLED(CONFIG_FB_OMAP2)
+
+static u64 omap_fb_dma_mask = ~(u32)0;
+static struct omapfb_platform_data omapfb_config;
+
+static struct platform_device omap_fb_device = {
+ .name = "omapfb",
+ .id = -1,
+ .dev = {
+ .dma_mask = &omap_fb_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ .platform_data = &omapfb_config,
+ },
+ .num_resources = 0,
+};
+
+int __init omap_init_fb(void)
+{
+ return platform_device_register(&omap_fb_device);
+}
+#else
+int __init omap_init_fb(void) { return 0; }
+#endif