summaryrefslogtreecommitdiff
path: root/arch/arm/mach-omap2/omap4-common.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-21 10:50:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-21 10:50:00 -0700
commita6f039869ff87e0a8d621e31d14bbb120c1dfa93 (patch)
treec8975a8d02893633d03efe5435aa8b0635298a93 /arch/arm/mach-omap2/omap4-common.c
parente0bc5d4a54938eedcde14005210e6c08aa9727e4 (diff)
parentf6304f5804f228b6c2fea9e3dfac25c5b2db9b38 (diff)
Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (113 commits) omap4: Add support for i2c init omap: Fix i2c platform init code for omap4 OMAP2 clock: fix recursive spinlock attempt when CONFIG_CPU_FREQ=y OMAP powerdomain, hwmod, omap_device: add some credits OMAP4 powerdomain: Support LOWPOWERSTATECHANGE for powerdomains OMAP3 clock: add support for setting the divider for sys_clkout2 using clk_set_rate OMAP4 powerdomain: Fix pwrsts flags for ALWAYS ON domains OMAP: timers: Fix clock source names for OMAP4 OMAP4 clock: Support clk_set_parent OMAP4: PRCM: Add offset defines for all CM registers OMAP4: PRCM: Add offset defines for all PRM registers OMAP4: PRCM: Remove duplicate definition of base addresses OMAP4: PRM: Remove MPU internal code name and apply PRCM naming convention OMAP4: CM: Remove non-functional registers in ES1.0 OMAP: hwmod: Replace WARN by pr_warning for clockdomain check OMAP: hwmod: Rename hwmod name for the MPU OMAP: hwmod: Do not exit the iteration if one clock init failed OMAP: hwmod: Replace WARN by pr_warning if clock lookup failed OMAP: hwmod: Remove IS_ERR check with omap_clk_get_by_name return value OMAP: hwmod: Fix wrong pointer iteration in oh->slaves ...
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