Merge tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC DT updates from Olof Johansson:
"Most of this branch consists of updates, additions and general churn
of the device tree source files in the kernel (arch/arm/boot/dts).
Besides that, there are a few things to point out:
- Lots of platform conversion on OMAP2+, with removal of old board
files for various platforms.
- Final conversion of a bunch of ux500 (ST-Ericsson) platforms as
well
- Some updates to pinctrl and other subsystems. Most of these are
for DT-enablement of the various platforms and acks have been
collected"
* tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (385 commits)
ARM: dts: bcm11351: Use GIC/IRQ defines for sdio interrupts
ARM: dts: bcm: Add missing UARTs for bcm11351 (bcm281xx)
ARM: dts: bcm281xx: Add card detect GPIO
ARM: dts: rename ARCH_BCM to ARCH_BCM_MOBILE (dt)
ARM: bcm281xx: Add device node for the GPIO controller
ARM: mvebu: Add Netgear ReadyNAS 104 board
ARM: tegra: fix Tegra114 IOMMU register address
ARM: kirkwood: add support for OpenBlocks A7 platform
ARM: dts: omap4-panda: add DPI pinmuxing
ARM: dts: AM33xx: Add RNG node
ARM: dts: AM33XX: Add hwspinlock node
ARM: dts: OMAP5: Add hwspinlock node
ARM: dts: OMAP4: Add hwspinlock node
ARM: dts: use 'status' property for PCIe nodes
ARM: dts: sirf: add missed address-cells and size-cells for prima2 I2C
ARM: dts: sirf: add missed cell, cs and dma channel for SPI nodes
ARM: dts: sirf: add missed graphics2d iobg in atlas6 dts
ARM: dts: sirf: add missed chhifbg node in prima2 and atlas6 dts
ARM: dts: sirf: add missed memcontrol-monitor node in prima2 and atlas6 dts
ARM: mvebu: Add the core-divider clock to Armada 370/XP
...
diff --git a/arch/arm/mach-s3c64xx/Kconfig b/arch/arm/mach-s3c64xx/Kconfig
index a2d5bb3..2cb8dc5 100644
--- a/arch/arm/mach-s3c64xx/Kconfig
+++ b/arch/arm/mach-s3c64xx/Kconfig
@@ -298,4 +298,20 @@
help
Machine support for the Wolfson Cragganmore S3C6410 variant.
+config MACH_S3C64XX_DT
+ bool "Samsung S3C6400/S3C6410 machine using Device Tree"
+ select CLKSRC_OF
+ select CPU_S3C6400
+ select CPU_S3C6410
+ select PINCTRL
+ select PINCTRL_S3C64XX
+ select USE_OF
+ help
+ Machine support for Samsung S3C6400/S3C6410 machines with Device Tree
+ enabled.
+ Select this if a fdt blob is available for your S3C64XX SoC based
+ board.
+ Note: This is under development and not all peripherals can be
+ supported with this machine file.
+
endif
diff --git a/arch/arm/mach-s3c64xx/Makefile b/arch/arm/mach-s3c64xx/Makefile
index 645a8fe..6faedcf 100644
--- a/arch/arm/mach-s3c64xx/Makefile
+++ b/arch/arm/mach-s3c64xx/Makefile
@@ -57,3 +57,4 @@
obj-$(CONFIG_MACH_SMDK6400) += mach-smdk6400.o
obj-$(CONFIG_MACH_SMDK6410) += mach-smdk6410.o
obj-$(CONFIG_MACH_WLF_CRAGG_6410) += mach-crag6410.o mach-crag6410-module.o
+obj-$(CONFIG_MACH_S3C64XX_DT) += mach-s3c64xx-dt.o
diff --git a/arch/arm/mach-s3c64xx/common.c b/arch/arm/mach-s3c64xx/common.c
index 7d3cb58..7a3ce4c 100644
--- a/arch/arm/mach-s3c64xx/common.c
+++ b/arch/arm/mach-s3c64xx/common.c
@@ -14,6 +14,10 @@
* published by the Free Software Foundation.
*/
+/*
+ * NOTE: Code in this file is not used when booting with Device Tree support.
+ */
+
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>
@@ -203,6 +207,10 @@
static __init int s3c64xx_dev_init(void)
{
+ /* Not applicable when using DT. */
+ if (of_have_populated_dt())
+ return 0;
+
subsys_system_register(&s3c64xx_subsys, NULL);
return device_register(&s3c64xx_dev);
}
@@ -404,6 +412,10 @@
{
int irq;
+ /* On DT-enabled systems EINTs are handled by pinctrl-s3c64xx driver. */
+ if (of_have_populated_dt())
+ return -ENODEV;
+
for (irq = IRQ_EINT(0); irq <= IRQ_EINT(27); irq++) {
irq_set_chip_and_handler(irq, &s3c_irq_eint, handle_level_irq);
irq_set_chip_data(irq, (void *)eint_irq_to_bit(irq));
diff --git a/arch/arm/mach-s3c64xx/dma.c b/arch/arm/mach-s3c64xx/dma.c
index c511dfa..7e22c21 100644
--- a/arch/arm/mach-s3c64xx/dma.c
+++ b/arch/arm/mach-s3c64xx/dma.c
@@ -12,6 +12,10 @@
* published by the Free Software Foundation.
*/
+/*
+ * NOTE: Code in this file is not used when booting with Device Tree support.
+ */
+
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/interrupt.h>
@@ -24,6 +28,7 @@
#include <linux/err.h>
#include <linux/io.h>
#include <linux/amba/pl080.h>
+#include <linux/of.h>
#include <mach/dma.h>
#include <mach/map.h>
@@ -726,6 +731,10 @@
{
int ret;
+ /* This driver is not supported when booting with device tree. */
+ if (of_have_populated_dt())
+ return -ENODEV;
+
printk(KERN_INFO "%s: Registering DMA channels\n", __func__);
dma_pool = dma_pool_create("DMA-LLI", NULL, sizeof(struct pl080s_lli), 16, 0);
diff --git a/arch/arm/mach-s3c64xx/irq-pm.c b/arch/arm/mach-s3c64xx/irq-pm.c
index c3da1b6..1649c0d 100644
--- a/arch/arm/mach-s3c64xx/irq-pm.c
+++ b/arch/arm/mach-s3c64xx/irq-pm.c
@@ -12,12 +12,17 @@
* published by the Free Software Foundation.
*/
+/*
+ * NOTE: Code in this file is not used when booting with Device Tree support.
+ */
+
#include <linux/kernel.h>
#include <linux/syscore_ops.h>
#include <linux/interrupt.h>
#include <linux/serial_core.h>
#include <linux/irq.h>
#include <linux/io.h>
+#include <linux/of.h>
#include <mach/map.h>
@@ -101,6 +106,10 @@
static __init int s3c64xx_syscore_init(void)
{
+ /* Appropriate drivers (pinctrl, uart) handle this when using DT. */
+ if (of_have_populated_dt())
+ return 0;
+
register_syscore_ops(&s3c64xx_irq_syscore_ops);
return 0;
diff --git a/arch/arm/mach-s3c64xx/mach-s3c64xx-dt.c b/arch/arm/mach-s3c64xx/mach-s3c64xx-dt.c
new file mode 100644
index 0000000..7eb9a10
--- /dev/null
+++ b/arch/arm/mach-s3c64xx/mach-s3c64xx-dt.c
@@ -0,0 +1,85 @@
+/*
+ * Samsung's S3C64XX flattened device tree enabled machine
+ *
+ * Copyright (c) 2013 Tomasz Figa <tomasz.figa@gmail.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/clk-provider.h>
+#include <linux/irqchip.h>
+#include <linux/of_platform.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/system_misc.h>
+
+#include <plat/cpu.h>
+#include <plat/watchdog-reset.h>
+
+#include <mach/map.h>
+
+#include "common.h"
+
+/*
+ * IO mapping for shared system controller IP.
+ *
+ * FIXME: Make remaining drivers use dynamic mapping.
+ */
+static struct map_desc s3c64xx_dt_iodesc[] __initdata = {
+ {
+ .virtual = (unsigned long)S3C_VA_SYS,
+ .pfn = __phys_to_pfn(S3C64XX_PA_SYSCON),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ },
+};
+
+static void __init s3c64xx_dt_map_io(void)
+{
+ debug_ll_io_init();
+ iotable_init(s3c64xx_dt_iodesc, ARRAY_SIZE(s3c64xx_dt_iodesc));
+
+ s3c64xx_init_cpu();
+
+ if (!soc_is_s3c64xx())
+ panic("SoC is not S3C64xx!");
+}
+
+static void __init s3c64xx_dt_init_irq(void)
+{
+ of_clk_init(NULL);
+ samsung_wdt_reset_of_init();
+ irqchip_init();
+};
+
+static void __init s3c64xx_dt_init_machine(void)
+{
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+}
+
+static void s3c64xx_dt_restart(enum reboot_mode mode, const char *cmd)
+{
+ if (mode != REBOOT_SOFT)
+ samsung_wdt_reset();
+
+ /* if all else fails, or mode was for soft, jump to 0 */
+ soft_restart(0);
+}
+
+static char const *s3c64xx_dt_compat[] __initdata = {
+ "samsung,s3c6400",
+ "samsung,s3c6410",
+ NULL
+};
+
+DT_MACHINE_START(S3C6400_DT, "Samsung S3C64xx (Flattened Device Tree)")
+ /* Maintainer: Tomasz Figa <tomasz.figa@gmail.com> */
+ .dt_compat = s3c64xx_dt_compat,
+ .map_io = s3c64xx_dt_map_io,
+ .init_irq = s3c64xx_dt_init_irq,
+ .init_machine = s3c64xx_dt_init_machine,
+ .restart = s3c64xx_dt_restart,
+MACHINE_END
diff --git a/arch/arm/mach-s3c64xx/s3c6400.c b/arch/arm/mach-s3c64xx/s3c6400.c
index 331fe8e..3db0c98 100644
--- a/arch/arm/mach-s3c64xx/s3c6400.c
+++ b/arch/arm/mach-s3c64xx/s3c6400.c
@@ -9,6 +9,10 @@
* published by the Free Software Foundation.
*/
+/*
+ * NOTE: Code in this file is not used when booting with Device Tree support.
+ */
+
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
@@ -20,6 +24,7 @@
#include <linux/device.h>
#include <linux/serial_core.h>
#include <linux/platform_device.h>
+#include <linux/of.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
@@ -76,6 +81,10 @@
static int __init s3c6400_core_init(void)
{
+ /* Not applicable when using DT. */
+ if (of_have_populated_dt())
+ return 0;
+
return subsys_system_register(&s3c6400_subsys, NULL);
}
diff --git a/arch/arm/mach-s3c64xx/s3c6410.c b/arch/arm/mach-s3c64xx/s3c6410.c
index 7e6fa12..72b2278 100644
--- a/arch/arm/mach-s3c64xx/s3c6410.c
+++ b/arch/arm/mach-s3c64xx/s3c6410.c
@@ -10,6 +10,10 @@
* published by the Free Software Foundation.
*/
+/*
+ * NOTE: Code in this file is not used when booting with Device Tree support.
+ */
+
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
@@ -21,6 +25,7 @@
#include <linux/device.h>
#include <linux/serial_core.h>
#include <linux/platform_device.h>
+#include <linux/of.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
@@ -79,6 +84,10 @@
static int __init s3c6410_core_init(void)
{
+ /* Not applicable when using DT. */
+ if (of_have_populated_dt())
+ return 0;
+
return subsys_system_register(&s3c6410_subsys, NULL);
}
