summaryrefslogtreecommitdiff
path: root/arch/arm/mach-imx/imx27-dt.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2012-03-28 03:47:35 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-28 03:47:35 +0400
commit66f03c614c0902ccf7d6160459362a9352f33271 (patch)
treeb9a8864efe5aa7fc5c96cc5ccbeca41f5cd6f6a7 /arch/arm/mach-imx/imx27-dt.c
parent34800598b2eebe061445216473b1e4c2ff5cba99 (diff)
parentcdc3df6f44f72c5924a16a47e1663c3fb0e57820 (diff)
downloadlinux-66f03c614c0902ccf7d6160459362a9352f33271.tar.xz
Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull "ARM: device tree work" from Arnd Bergmann: "Most of these patches convert code from using static platform data to describing the hardware in the device tree. This is only the first half of the changes for v3.4 because a lot of patches for this topic came in the last week before the merge window. Signed-off-by: Arnd Bergmann <arnd@arndb.de>" Fix up trivial conflicts in arch/arm/mach-vexpress/{Kconfig,core.h} * tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (86 commits) Document: devicetree: add OF documents for arch-mmp ARM: dts: append DTS file of pxa168 ARM: mmp: append OF support on pxa168 ARM: mmp: enable rtc clk in pxa168 i2c: pxa: add OF support serial: pxa: add OF support arm/dts: mt_ventoux: very basic support for TeeJet Mt.Ventoux board ARM: OMAP2+: Remove extra ifdefs for board-generic ARM: OMAP2+: Fix build error when only ARCH_OMAP2/3 or 4 is selected ASoC: DT: Add digital microphone binding to PAZ00 board. ARM: dt: Add ARM PMU to tegra*.dtsi ARM: at91: at91sam9x5cm/dt: add leds support ARM: at91: usb_a9g20/dt: add gpio-keys support ARM: at91: at91sam9m10g45ek/dt: add gpio-keys support ARM: at91: at91sam9m10g45ek/dt: add leds support ARM: at91: usb_a9g20/dt: add leds support ARM: at91/pio: add new PIO3 features ARM: at91: add sam9_smc.o to at91sam9x5 build ARM: at91/tc/clocksource: Add 32 bit variant to Timer Counter ARM: at91/tc: add device tree support to atmel_tclib ...
Diffstat (limited to 'arch/arm/mach-imx/imx27-dt.c')
-rw-r--r--arch/arm/mach-imx/imx27-dt.c89
1 files changed, 89 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/imx27-dt.c b/arch/arm/mach-imx/imx27-dt.c
new file mode 100644
index 000000000000..861ceb8232d6
--- /dev/null
+++ b/arch/arm/mach-imx/imx27-dt.c
@@ -0,0 +1,89 @@
+/*
+ * Copyright 2012 Sascha Hauer, Pengutronix
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include <mach/common.h>
+#include <mach/mx27.h>
+
+static const struct of_dev_auxdata imx27_auxdata_lookup[] __initconst = {
+ OF_DEV_AUXDATA("fsl,imx27-uart", MX27_UART1_BASE_ADDR, "imx21-uart.0", NULL),
+ OF_DEV_AUXDATA("fsl,imx27-uart", MX27_UART2_BASE_ADDR, "imx21-uart.1", NULL),
+ OF_DEV_AUXDATA("fsl,imx27-uart", MX27_UART3_BASE_ADDR, "imx21-uart.2", NULL),
+ OF_DEV_AUXDATA("fsl,imx27-fec", MX27_FEC_BASE_ADDR, "imx27-fec.0", NULL),
+ OF_DEV_AUXDATA("fsl,imx27-i2c", MX27_I2C1_BASE_ADDR, "imx-i2c.0", NULL),
+ OF_DEV_AUXDATA("fsl,imx27-i2c", MX27_I2C2_BASE_ADDR, "imx-i2c.1", NULL),
+ OF_DEV_AUXDATA("fsl,imx27-cspi", MX27_CSPI1_BASE_ADDR, "imx27-cspi.0", NULL),
+ OF_DEV_AUXDATA("fsl,imx27-cspi", MX27_CSPI2_BASE_ADDR, "imx27-cspi.1", NULL),
+ OF_DEV_AUXDATA("fsl,imx27-cspi", MX27_CSPI3_BASE_ADDR, "imx27-cspi.2", NULL),
+ OF_DEV_AUXDATA("fsl,imx27-wdt", MX27_WDOG_BASE_ADDR, "imx2-wdt.0", NULL),
+ { /* sentinel */ }
+};
+
+static int __init imx27_avic_add_irq_domain(struct device_node *np,
+ struct device_node *interrupt_parent)
+{
+ irq_domain_add_simple(np, 0);
+ return 0;
+}
+
+static int __init imx27_gpio_add_irq_domain(struct device_node *np,
+ struct device_node *interrupt_parent)
+{
+ static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS;
+
+ irq_domain_add_simple(np, gpio_irq_base);
+
+ return 0;
+}
+
+static const struct of_device_id imx27_irq_match[] __initconst = {
+ { .compatible = "fsl,imx27-avic", .data = imx27_avic_add_irq_domain, },
+ { .compatible = "fsl,imx27-gpio", .data = imx27_gpio_add_irq_domain, },
+ { /* sentinel */ }
+};
+
+static void __init imx27_dt_init(void)
+{
+ of_irq_init(imx27_irq_match);
+
+ of_platform_populate(NULL, of_default_bus_match_table,
+ imx27_auxdata_lookup, NULL);
+}
+
+static void __init imx27_timer_init(void)
+{
+ mx27_clocks_init_dt();
+}
+
+static struct sys_timer imx27_timer = {
+ .init = imx27_timer_init,
+};
+
+static const char *imx27_dt_board_compat[] __initdata = {
+ "fsl,imx27",
+ NULL
+};
+
+DT_MACHINE_START(IMX27_DT, "Freescale i.MX27 (Device Tree Support)")
+ .map_io = mx27_map_io,
+ .init_early = imx27_init_early,
+ .init_irq = mx27_init_irq,
+ .handle_irq = imx27_handle_irq,
+ .timer = &imx27_timer,
+ .init_machine = imx27_dt_init,
+ .dt_compat = imx27_dt_board_compat,
+ .restart = mxc_restart,
+MACHINE_END