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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2009-09-12 12:02:26 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-09-12 12:02:26 +0100
commitddd559b13f6d2fe3ad68c4b3f5235fd3c2eae4e3 (patch)
treed827bca3fc825a0ac33efbcd493713be40fcc812 /arch/arm/mach-nomadik/cpu-8815.c
parentcf7a2b4fb6a9b86779930a0a123b0df41aa9208f (diff)
parentf17a1f06d2fa93f4825be572622eb02c4894db4e (diff)
Merge branch 'devel-stable' into devel
Conflicts: MAINTAINERS arch/arm/mm/fault.c
Diffstat (limited to 'arch/arm/mach-nomadik/cpu-8815.c')
-rw-r--r--arch/arm/mach-nomadik/cpu-8815.c139
1 files changed, 139 insertions, 0 deletions
diff --git a/arch/arm/mach-nomadik/cpu-8815.c b/arch/arm/mach-nomadik/cpu-8815.c
new file mode 100644
index 000000000000..f93c59634191
--- /dev/null
+++ b/arch/arm/mach-nomadik/cpu-8815.c
@@ -0,0 +1,139 @@
+/*
+ * Copyright STMicroelectronics, 2007.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/amba/bus.h>
+#include <linux/gpio.h>
+
+#include <mach/hardware.h>
+#include <mach/irqs.h>
+#include <asm/mach/map.h>
+#include <asm/hardware/vic.h>
+
+#include <asm/cacheflush.h>
+#include <asm/hardware/cache-l2x0.h>
+
+/* The 8815 has 4 GPIO blocks, let's register them immediately */
+static struct nmk_gpio_platform_data cpu8815_gpio[] = {
+ {
+ .name = "GPIO-0-31",
+ .first_gpio = 0,
+ .first_irq = NOMADIK_GPIO_TO_IRQ(0),
+ .parent_irq = IRQ_GPIO0,
+ }, {
+ .name = "GPIO-32-63",
+ .first_gpio = 32,
+ .first_irq = NOMADIK_GPIO_TO_IRQ(32),
+ .parent_irq = IRQ_GPIO1,
+ }, {
+ .name = "GPIO-64-95",
+ .first_gpio = 64,
+ .first_irq = NOMADIK_GPIO_TO_IRQ(64),
+ .parent_irq = IRQ_GPIO2,
+ }, {
+ .name = "GPIO-96-127", /* 124..127 not routed to pin */
+ .first_gpio = 96,
+ .first_irq = NOMADIK_GPIO_TO_IRQ(96),
+ .parent_irq = IRQ_GPIO3,
+ }
+};
+
+#define __MEM_4K_RESOURCE(x) \
+ .res = {.start = (x), .end = (x) + SZ_4K - 1, .flags = IORESOURCE_MEM}
+
+static struct amba_device cpu8815_amba_gpio[] = {
+ {
+ .dev = {
+ .init_name = "gpio0",
+ .platform_data = cpu8815_gpio + 0,
+ },
+ __MEM_4K_RESOURCE(NOMADIK_GPIO0_BASE),
+ }, {
+ .dev = {
+ .init_name = "gpio1",
+ .platform_data = cpu8815_gpio + 1,
+ },
+ __MEM_4K_RESOURCE(NOMADIK_GPIO1_BASE),
+ }, {
+ .dev = {
+ .init_name = "gpio2",
+ .platform_data = cpu8815_gpio + 2,
+ },
+ __MEM_4K_RESOURCE(NOMADIK_GPIO2_BASE),
+ }, {
+ .dev = {
+ .init_name = "gpio3",
+ .platform_data = cpu8815_gpio + 3,
+ },
+ __MEM_4K_RESOURCE(NOMADIK_GPIO3_BASE),
+ },
+};
+
+static struct amba_device *amba_devs[] __initdata = {
+ cpu8815_amba_gpio + 0,
+ cpu8815_amba_gpio + 1,
+ cpu8815_amba_gpio + 2,
+ cpu8815_amba_gpio + 3,
+};
+
+static int __init cpu8815_init(void)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(amba_devs); i++)
+ amba_device_register(amba_devs[i], &iomem_resource);
+ return 0;
+}
+arch_initcall(cpu8815_init);
+
+/* All SoC devices live in the same area (see hardware.h) */
+static struct map_desc nomadik_io_desc[] __initdata = {
+ {
+ .virtual = NOMADIK_IO_VIRTUAL,
+ .pfn = __phys_to_pfn(NOMADIK_IO_PHYSICAL),
+ .length = NOMADIK_IO_SIZE,
+ .type = MT_DEVICE,
+ }
+ /* static ram and secured ram may be added later */
+};
+
+void __init cpu8815_map_io(void)
+{
+ iotable_init(nomadik_io_desc, ARRAY_SIZE(nomadik_io_desc));
+}
+
+void __init cpu8815_init_irq(void)
+{
+ /* This modified VIC cell has two register blocks, at 0 and 0x20 */
+ vic_init(io_p2v(NOMADIK_IC_BASE + 0x00), IRQ_VIC_START + 0, ~0, 0);
+ vic_init(io_p2v(NOMADIK_IC_BASE + 0x20), IRQ_VIC_START + 32, ~0, 0);
+}
+
+/*
+ * This function is called from the board init ("init_machine").
+ */
+ void __init cpu8815_platform_init(void)
+{
+#ifdef CONFIG_CACHE_L2X0
+ /* At full speed latency must be >=2, so 0x249 in low bits */
+ l2x0_init(io_p2v(NOMADIK_L2CC_BASE), 0x00730249, 0xfe000fff);
+#endif
+ return;
+}