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authorGrant Likely <grant.likely@secretlab.ca>2010-05-22 08:36:56 +0200
committerGrant Likely <grant.likely@secretlab.ca>2010-05-22 08:36:56 +0200
commitcf9b59e9d3e008591d1f54830f570982bb307a0d (patch)
tree113478ce8fd8c832ba726ffdf59b82cb46356476 /arch/arm/mach-omap2/omap4-common.c
parentof: change of_match_device to work with struct device (diff)
parentfbmem: avoid printk format warning with 32-bit resources (diff)
downloadlinux-cf9b59e9d3e008591d1f54830f570982bb307a0d.tar.xz
linux-cf9b59e9d3e008591d1f54830f570982bb307a0d.zip
Merge remote branch 'origin' into secretlab/next-devicetree
Merging in current state of Linus' tree to deal with merge conflicts and build failures in vio.c after merge. Conflicts: drivers/i2c/busses/i2c-cpm.c drivers/i2c/busses/i2c-mpc.c drivers/net/gianfar.c Also fixed up one line in arch/powerpc/kernel/vio.c to use the correct node pointer. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'arch/arm/mach-omap2/omap4-common.c')
-rw-r--r--arch/arm/mach-omap2/omap4-common.c72
1 files changed, 72 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
new file mode 100644
index 000000000000..13dc9794dcc2
--- /dev/null
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -0,0 +1,72 @@
+/*
+ * OMAP4 specific common source file.
+ *
+ * Copyright (C) 2010 Texas Instruments, Inc.
+ * Author:
+ * Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ *
+ * This program is free software,you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+
+#include <asm/hardware/gic.h>
+#include <asm/hardware/cache-l2x0.h>
+
+#include <mach/hardware.h>
+#include <mach/omap4-common.h>
+
+#ifdef CONFIG_CACHE_L2X0
+void __iomem *l2cache_base;
+#endif
+
+void __iomem *gic_cpu_base_addr;
+void __iomem *gic_dist_base_addr;
+
+
+void __init gic_init_irq(void)
+{
+ /* Static mapping, never released */
+ gic_dist_base_addr = ioremap(OMAP44XX_GIC_DIST_BASE, SZ_4K);
+ BUG_ON(!gic_dist_base_addr);
+ gic_dist_init(0, gic_dist_base_addr, 29);
+
+ /* Static mapping, never released */
+ gic_cpu_base_addr = ioremap(OMAP44XX_GIC_CPU_BASE, SZ_512);
+ BUG_ON(!gic_cpu_base_addr);
+ gic_cpu_init(0, gic_cpu_base_addr);
+}
+
+#ifdef CONFIG_CACHE_L2X0
+static int __init omap_l2_cache_init(void)
+{
+ /*
+ * To avoid code running on other OMAPs in
+ * multi-omap builds
+ */
+ if (!cpu_is_omap44xx())
+ return -ENODEV;
+
+ /* Static mapping, never released */
+ l2cache_base = ioremap(OMAP44XX_L2CACHE_BASE, SZ_4K);
+ BUG_ON(!l2cache_base);
+
+ /* Enable PL310 L2 Cache controller */
+ omap_smc1(0x102, 0x1);
+
+ /*
+ * 32KB way size, 16-way associativity,
+ * parity disabled
+ */
+ l2x0_init(l2cache_base, 0x0e050000, 0xc0000fff);
+
+ return 0;
+}
+early_initcall(omap_l2_cache_init);
+#endif