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-rw-r--r--arch/arm/boot/dts/versatile-ab.dts192
-rw-r--r--arch/arm/boot/dts/versatile-pb.dts48
-rw-r--r--arch/arm/mach-versatile/Kconfig8
-rw-r--r--arch/arm/mach-versatile/Makefile1
-rw-r--r--arch/arm/mach-versatile/core.c62
-rw-r--r--arch/arm/mach-versatile/core.h4
-rw-r--r--arch/arm/mach-versatile/versatile_dt.c51
7 files changed, 366 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/versatile-ab.dts b/arch/arm/boot/dts/versatile-ab.dts
new file mode 100644
index 000000000000..0b32925f2147
--- /dev/null
+++ b/arch/arm/boot/dts/versatile-ab.dts
@@ -0,0 +1,192 @@
+/dts-v1/;
+/include/ "skeleton.dtsi"
+
+/ {
+ model = "ARM Versatile AB";
+ compatible = "arm,versatile-ab";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ interrupt-parent = <&vic>;
+
+ aliases {
+ serial0 = &uart0;
+ serial1 = &uart1;
+ serial2 = &uart2;
+ i2c0 = &i2c0;
+ };
+
+ memory {
+ reg = <0x0 0x08000000>;
+ };
+
+ flash@34000000 {
+ compatible = "arm,versatile-flash";
+ reg = <0x34000000 0x4000000>;
+ bank-width = <4>;
+ };
+
+ i2c0: i2c@10002000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "arm,versatile-i2c";
+ reg = <0x10002000 0x1000>;
+
+ rtc@68 {
+ compatible = "dallas,ds1338";
+ reg = <0x68>;
+ };
+ };
+
+ net@10010000 {
+ compatible = "smsc,lan91c111";
+ reg = <0x10010000 0x10000>;
+ interrupts = <25>;
+ };
+
+ lcd@10008000 {
+ compatible = "arm,versatile-lcd";
+ reg = <0x10008000 0x1000>;
+ };
+
+ amba {
+ compatible = "arm,amba-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ vic: intc@10140000 {
+ compatible = "arm,versatile-vic";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ reg = <0x10140000 0x1000>;
+ };
+
+ sic: intc@10003000 {
+ compatible = "arm,versatile-sic";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ reg = <0x10003000 0x1000>;
+ interrupt-parent = <&vic>;
+ interrupts = <31>; /* Cascaded to vic */
+ };
+
+ dma@10130000 {
+ compatible = "arm,pl081", "arm,primecell";
+ reg = <0x10130000 0x1000>;
+ interrupts = <17>;
+ };
+
+ uart0: uart@101f1000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x101f1000 0x1000>;
+ interrupts = <12>;
+ };
+
+ uart1: uart@101f2000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x101f2000 0x1000>;
+ interrupts = <13>;
+ };
+
+ uart2: uart@101f3000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x101f3000 0x1000>;
+ interrupts = <14>;
+ };
+
+ smc@10100000 {
+ compatible = "arm,primecell";
+ reg = <0x10100000 0x1000>;
+ };
+
+ mpmc@10110000 {
+ compatible = "arm,primecell";
+ reg = <0x10110000 0x1000>;
+ };
+
+ display@10120000 {
+ compatible = "arm,pl110", "arm,primecell";
+ reg = <0x10120000 0x1000>;
+ interrupts = <16>;
+ };
+
+ sctl@101e0000 {
+ compatible = "arm,primecell";
+ reg = <0x101e0000 0x1000>;
+ };
+
+ watchdog@101e1000 {
+ compatible = "arm,primecell";
+ reg = <0x101e1000 0x1000>;
+ interrupts = <0>;
+ };
+
+ gpio0: gpio@101e4000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0x101e4000 0x1000>;
+ gpio-controller;
+ interrupts = <6>;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ gpio1: gpio@101e5000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0x101e5000 0x1000>;
+ interrupts = <7>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ rtc@101e8000 {
+ compatible = "arm,pl030", "arm,primecell";
+ reg = <0x101e8000 0x1000>;
+ interrupts = <10>;
+ };
+
+ sci@101f0000 {
+ compatible = "arm,primecell";
+ reg = <0x101f0000 0x1000>;
+ interrupts = <15>;
+ };
+
+ ssp@101f4000 {
+ compatible = "arm,pl022", "arm,primecell";
+ reg = <0x101f4000 0x1000>;
+ interrupts = <11>;
+ };
+
+ fpga {
+ compatible = "arm,versatile-fpga", "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x10000000 0x10000>;
+
+ aaci@4000 {
+ compatible = "arm,primecell";
+ reg = <0x4000 0x1000>;
+ interrupts = <24>;
+ };
+ mmc@5000 {
+ compatible = "arm,primecell";
+ reg = < 0x5000 0x1000>;
+ interrupts = <22>;
+ };
+ kmi@6000 {
+ compatible = "arm,pl050", "arm,primecell";
+ reg = <0x6000 0x1000>;
+ interrupt-parent = <&sic>;
+ interrupts = <3>;
+ };
+ kmi@7000 {
+ compatible = "arm,pl050", "arm,primecell";
+ reg = <0x7000 0x1000>;
+ interrupt-parent = <&sic>;
+ interrupts = <4>;
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/versatile-pb.dts b/arch/arm/boot/dts/versatile-pb.dts
new file mode 100644
index 000000000000..8a614e398004
--- /dev/null
+++ b/arch/arm/boot/dts/versatile-pb.dts
@@ -0,0 +1,48 @@
+/include/ "versatile-ab.dts"
+
+/ {
+ model = "ARM Versatile PB";
+ compatible = "arm,versatile-pb";
+
+ amba {
+ gpio2: gpio@101e6000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0x101e6000 0x1000>;
+ interrupts = <8>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ gpio3: gpio@101e7000 {
+ compatible = "arm,pl061", "arm,primecell";
+ reg = <0x101e7000 0x1000>;
+ interrupts = <9>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ fpga {
+ uart@9000 {
+ compatible = "arm,pl011", "arm,primecell";
+ reg = <0x9000 0x1000>;
+ interrupt-parent = <&sic>;
+ interrupts = <6>;
+ };
+ sci@a000 {
+ compatible = "arm,primecell";
+ reg = <0xa000 0x1000>;
+ interrupt-parent = <&sic>;
+ interrupts = <5>;
+ };
+ mmc@b000 {
+ compatible = "arm,primecell";
+ reg = <0xb000 0x1000>;
+ interrupts = <23>;
+ };
+ };
+ };
+};
diff --git a/arch/arm/mach-versatile/Kconfig b/arch/arm/mach-versatile/Kconfig
index 9cdec5aa04a0..c1f38f6625b2 100644
--- a/arch/arm/mach-versatile/Kconfig
+++ b/arch/arm/mach-versatile/Kconfig
@@ -17,4 +17,12 @@ config MACH_VERSATILE_AB
Include support for the ARM(R) Versatile Application Baseboard
for the ARM926EJ-S.
+config MACH_VERSATILE_DT
+ bool "Support Versatile platform from device tree"
+ select USE_OF
+ select CPU_ARM926T
+ help
+ Include support for the ARM(R) Versatile/PB platform,
+ using the device tree for discovery
+
endmenu
diff --git a/arch/arm/mach-versatile/Makefile b/arch/arm/mach-versatile/Makefile
index 97cf4d831b0c..81fa3fe25e1a 100644
--- a/arch/arm/mach-versatile/Makefile
+++ b/arch/arm/mach-versatile/Makefile
@@ -5,4 +5,5 @@
obj-y := core.o
obj-$(CONFIG_ARCH_VERSATILE_PB) += versatile_pb.o
obj-$(CONFIG_MACH_VERSATILE_AB) += versatile_ab.o
+obj-$(CONFIG_MACH_VERSATILE_DT) += versatile_dt.o
obj-$(CONFIG_PCI) += pci.o
diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c
index 0c99cf076c63..e340a54251df 100644
--- a/arch/arm/mach-versatile/core.c
+++ b/arch/arm/mach-versatile/core.c
@@ -24,6 +24,9 @@
#include <linux/platform_device.h>
#include <linux/sysdev.h>
#include <linux/interrupt.h>
+#include <linux/irqdomain.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
#include <linux/amba/bus.h>
#include <linux/amba/clcd.h>
#include <linux/amba/pl061.h>
@@ -83,13 +86,26 @@ static struct fpga_irq_data sic_irq = {
#define PIC_MASK 0
#endif
+/* Lookup table for finding a DT node that represents the vic instance */
+static const struct of_device_id vic_of_match[] __initconst = {
+ { .compatible = "arm,versatile-vic", },
+ {}
+};
+
+static const struct of_device_id sic_of_match[] __initconst = {
+ { .compatible = "arm,versatile-sic", },
+ {}
+};
+
void __init versatile_init_irq(void)
{
vic_init(VA_VIC_BASE, IRQ_VIC_START, ~0, 0);
+ irq_domain_generate_simple(vic_of_match, VERSATILE_VIC_BASE, IRQ_VIC_START);
writel(~0, VA_SIC_BASE + SIC_IRQ_ENABLE_CLEAR);
fpga_irq_init(IRQ_VICSOURCE31, ~PIC_MASK, &sic_irq);
+ irq_domain_generate_simple(sic_of_match, VERSATILE_SIC_BASE, IRQ_SIC_START);
/*
* Interrupts on secondary controller from 0 to 8 are routed to
@@ -646,6 +662,52 @@ static struct amba_device *amba_devs[] __initdata = {
&kmi1_device,
};
+#ifdef CONFIG_OF
+/*
+ * Lookup table for attaching a specific name and platform_data pointer to
+ * devices as they get created by of_platform_populate(). Ideally this table
+ * would not exist, but the current clock implementation depends on some devices
+ * having a specific name.
+ */
+struct of_dev_auxdata versatile_auxdata_lookup[] __initdata = {
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_MMCI0_BASE, "fpga:05", NULL),
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_KMI0_BASE, "fpga:06", NULL),
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_KMI1_BASE, "fpga:07", NULL),
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_UART3_BASE, "fpga:09", NULL),
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_MMCI1_BASE, "fpga:0b", NULL),
+
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_CLCD_BASE, "dev:20", &clcd_plat_data),
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_UART0_BASE, "dev:f1", NULL),
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_UART1_BASE, "dev:f2", NULL),
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_UART2_BASE, "dev:f3", NULL),
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_SSP_BASE, "dev:f4", NULL),
+
+#if 0
+ /*
+ * These entries are unnecessary because no clocks referencing
+ * them. I've left them in for now as place holders in case
+ * any of them need to be added back, but they should be
+ * removed before actually committing this patch. --gcl
+ */
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_AACI_BASE, "fpga:04", NULL),
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_SCI1_BASE, "fpga:0a", NULL),
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_SMC_BASE, "dev:00", NULL),
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_MPMC_BASE, "dev:10", NULL),
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_DMAC_BASE, "dev:30", NULL),
+
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_SCTL_BASE, "dev:e0", NULL),
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_WATCHDOG_BASE, "dev:e1", NULL),
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_GPIO0_BASE, "dev:e4", NULL),
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_GPIO1_BASE, "dev:e5", NULL),
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_GPIO2_BASE, "dev:e6", NULL),
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_GPIO3_BASE, "dev:e7", NULL),
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_RTC_BASE, "dev:e8", NULL),
+ OF_DEV_AUXDATA("arm,primecell", VERSATILE_SCI_BASE, "dev:f0", NULL),
+#endif
+ {}
+};
+#endif
+
#ifdef CONFIG_LEDS
#define VA_LEDS_BASE (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_LED_OFFSET)
diff --git a/arch/arm/mach-versatile/core.h b/arch/arm/mach-versatile/core.h
index fd6404e5d788..e01422700ebb 100644
--- a/arch/arm/mach-versatile/core.h
+++ b/arch/arm/mach-versatile/core.h
@@ -23,6 +23,7 @@
#define __ASM_ARCH_VERSATILE_H
#include <linux/amba/bus.h>
+#include <linux/of_platform.h>
extern void __init versatile_init(void);
extern void __init versatile_init_early(void);
@@ -30,6 +31,9 @@ extern void __init versatile_init_irq(void);
extern void __init versatile_map_io(void);
extern struct sys_timer versatile_timer;
extern unsigned int mmc_status(struct device *dev);
+#ifdef CONFIG_OF
+extern struct of_dev_auxdata versatile_auxdata_lookup[];
+#endif
#define AMBA_DEVICE(name,busid,base,plat) \
static struct amba_device name##_device = { \
diff --git a/arch/arm/mach-versatile/versatile_dt.c b/arch/arm/mach-versatile/versatile_dt.c
new file mode 100644
index 000000000000..54e037c090f5
--- /dev/null
+++ b/arch/arm/mach-versatile/versatile_dt.c
@@ -0,0 +1,51 @@
+/*
+ * Versatile board support using the device tree
+ *
+ * Copyright (C) 2010 Secret Lab Technologies Ltd.
+ * Copyright (C) 2009 Jeremy Kerr <jeremy.kerr@canonical.com>
+ * Copyright (C) 2004 ARM Limited
+ * Copyright (C) 2000 Deep Blue Solutions Ltd
+ *
+ * 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/init.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+#include "core.h"
+
+static void __init versatile_dt_init(void)
+{
+ of_platform_populate(NULL, of_default_bus_match_table,
+ versatile_auxdata_lookup, NULL);
+}
+
+static const char *versatile_dt_match[] __initconst = {
+ "arm,versatile-ab",
+ "arm,versatile-pb",
+ NULL,
+};
+
+DT_MACHINE_START(VERSATILE_PB, "ARM-Versatile (Device Tree Support)")
+ .map_io = versatile_map_io,
+ .init_early = versatile_init_early,
+ .init_irq = versatile_init_irq,
+ .timer = &versatile_timer,
+ .init_machine = versatile_dt_init,
+ .dt_compat = versatile_dt_match,
+MACHINE_END
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 23:49:57 +0000