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authorDaniel Mack <zonque@gmail.com>2012-07-25 17:54:41 +0200
committerHaojian Zhuang <haojian.zhuang@gmail.com>2012-08-16 16:15:12 +0800
commite7749a266bb3d0334887b2cf4e24de410e70c57a (patch)
tree9bd01ffffc7c865879c84eab0888867d7d0fda5d /arch/arm/mach-pxa
parent82ce44d104dc97f4f7fbd035ca34f723f0fb7287 (diff)
ARM: pxa3xx: add generic DT machine code
Add a DT_MACHINE_START entry for PXA3xx machines and a auxdata table for some of the devices. This file can be extended to also support pxa2xx and pxa9xx boards. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Diffstat (limited to 'arch/arm/mach-pxa')
-rw-r--r--arch/arm/mach-pxa/Kconfig12
-rw-r--r--arch/arm/mach-pxa/Makefile3
-rw-r--r--arch/arm/mach-pxa/pxa-dt.c63
3 files changed, 78 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index fe2d1f80ef50..8e6288de69b9 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -25,6 +25,18 @@ config PXA_V7_MACH_AUTO
if !ARCH_PXA_V7
comment "Intel/Marvell Dev Platforms (sorted by hardware release time)"
+config MACH_PXA3XX_DT
+ bool "Support PXA3xx platforms from device tree"
+ select PXA3xx
+ select CPU_PXA300
+ select POWER_SUPPLY
+ select HAVE_PWM
+ select USE_OF
+ help
+ Include support for Marvell PXA3xx based platforms using
+ the device tree. Needn't select any other machine while
+ MACH_PXA3XX_DT is enabled.
+
config ARCH_LUBBOCK
bool "Intel DBPXA250 Development Platform (aka Lubbock)"
select PXA25x
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index be0f7df8685c..2bedc9ed076c 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -26,6 +26,9 @@ obj-$(CONFIG_CPU_PXA930) += pxa930.o
# NOTE: keep the order of boards in accordance to their order in Kconfig
+# Device Tree support
+obj-$(CONFIG_MACH_PXA3XX_DT) += pxa-dt.o
+
# Intel/Marvell Dev Platforms
obj-$(CONFIG_ARCH_LUBBOCK) += lubbock.o
obj-$(CONFIG_MACH_MAINSTONE) += mainstone.o
diff --git a/arch/arm/mach-pxa/pxa-dt.c b/arch/arm/mach-pxa/pxa-dt.c
new file mode 100644
index 000000000000..c9192cea0033
--- /dev/null
+++ b/arch/arm/mach-pxa/pxa-dt.c
@@ -0,0 +1,63 @@
+/*
+ * linux/arch/arm/mach-pxa/pxa-dt.c
+ *
+ * Copyright (C) 2012 Daniel Mack
+ *
+ * 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
+ * publishhed by the Free Software Foundation.
+ */
+
+#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/irqs.h>
+#include <mach/pxa3xx.h>
+
+#include "generic.h"
+
+#ifdef CONFIG_PXA3xx
+extern void __init pxa3xx_dt_init_irq(void);
+
+static const struct of_dev_auxdata pxa3xx_auxdata_lookup[] __initconst = {
+ OF_DEV_AUXDATA("mrvl,pxa-uart", 0x40100000, "pxa2xx-uart.0", NULL),
+ OF_DEV_AUXDATA("mrvl,pxa-uart", 0x40200000, "pxa2xx-uart.1", NULL),
+ OF_DEV_AUXDATA("mrvl,pxa-uart", 0x40700000, "pxa2xx-uart.2", NULL),
+ OF_DEV_AUXDATA("mrvl,pxa-uart", 0x41600000, "pxa2xx-uart.3", NULL),
+ OF_DEV_AUXDATA("marvell,pxa-mmc", 0x41100000, "pxa2xx-mci.0", NULL),
+ OF_DEV_AUXDATA("mrvl,pxa-gpio", 0x40e00000, "pxa-gpio", NULL),
+ OF_DEV_AUXDATA("marvell,pxa-ohci", 0x4c000000, "pxa27x-ohci", NULL),
+ OF_DEV_AUXDATA("mrvl,pxa-i2c", 0x40301680, "pxa2xx-i2c.0", NULL),
+ OF_DEV_AUXDATA("mrvl,pwri2c", 0x40f500c0, "pxa3xx-i2c.1", NULL),
+ OF_DEV_AUXDATA("marvell,pxa3xx-nand", 0x43100000, "pxa3xx-nand", NULL),
+ {}
+};
+
+static void __init pxa3xx_dt_init(void)
+{
+ of_platform_populate(NULL, of_default_bus_match_table,
+ pxa3xx_auxdata_lookup, NULL);
+}
+
+static const char *pxa3xx_dt_board_compat[] __initdata = {
+ "marvell,pxa300",
+ "marvell,pxa310",
+ "marvell,pxa320",
+ NULL,
+};
+#endif
+
+#ifdef CONFIG_PXA3xx
+DT_MACHINE_START(PXA_DT, "Marvell PXA3xx (Device Tree Support)")
+ .map_io = pxa3xx_map_io,
+ .init_irq = pxa3xx_dt_init_irq,
+ .handle_irq = pxa3xx_handle_irq,
+ .timer = &pxa_timer,
+ .restart = pxa_restart,
+ .init_machine = pxa3xx_dt_init,
+ .dt_compat = pxa3xx_dt_board_compat,
+MACHINE_END
+#endif