[PATCH v2 00/10] ARM: initial support for TI DaVinci SoCs and virt2real board

[PATCH v2 00/10] ARM: initial support for TI DaVinci SoCs and virt2real board

[Antony Pavlov]

Change since v1:

- add hardware-base clocksource and move dummy software-only
  clocksource to separate patchseries;
- add gpio driver;
- use devicetree for probing devices.

Antony Pavlov (10):
  import _AC and UL macros from linux kernel
  ARM: initial support for TI DaVinci SoCs
  ARM: davinci: add DEBUG_LL support
  ARM: davinci: add clocksource
  gpio: add driver for TI DaVinci SoCs
  ARM: dts: Add TI TMS320DM365 devicetree file
  ARM: davinci: add documentation
  ARM: davinci: add virt2real board support
  ARM: virt2real: add documentation
  ARM: davinci: add virt2real_defconfig

 Documentation/boards.dox                      |   1 +
 arch/arm/Kconfig                              |   7 +
 arch/arm/Makefile                             |   1 +
 arch/arm/boards/Makefile                      |   1 +
 arch/arm/boards/virt2real/Makefile            |   1 +
 arch/arm/boards/virt2real/board.c             |  27 ++++
 arch/arm/boards/virt2real/lowlevel.c          |  34 +++++
 arch/arm/boards/virt2real/virt2real.dox       |  41 +++++
 arch/arm/configs/virt2real_defconfig          |  49 ++++++
 arch/arm/dts/dm365.dtsi                       |  28 ++++
 arch/arm/dts/virt2real.dts                    |  35 +++++
 arch/arm/include/asm/memory.h                 |   7 +
 arch/arm/mach-arm.dox                         |   2 +
 arch/arm/mach-davinci/Kconfig                 |  16 ++
 arch/arm/mach-davinci/Makefile                |   1 +
 arch/arm/mach-davinci/include/mach/debug_ll.h |  42 +++++
 arch/arm/mach-davinci/include/mach/hardware.h |  29 ++++
 arch/arm/mach-davinci/include/mach/serial.h   |  20 +++
 arch/arm/mach-davinci/include/mach/time.h     |  20 +++
 arch/arm/mach-davinci/mach-davinci.dox        |   7 +
 arch/arm/mach-davinci/time.c                  | 209 +++++++++++++++++++++++++
 drivers/gpio/Kconfig                          |   7 +
 drivers/gpio/Makefile                         |   1 +
 drivers/gpio/gpio-davinci.c                   | 211 ++++++++++++++++++++++++++
 include/linux/const.h                         |  27 ++++
 25 files changed, 824 insertions(+)
 create mode 100644 arch/arm/boards/virt2real/Makefile
 create mode 100644 arch/arm/boards/virt2real/board.c
 create mode 100644 arch/arm/boards/virt2real/lowlevel.c
 create mode 100644 arch/arm/boards/virt2real/virt2real.dox
 create mode 100644 arch/arm/configs/virt2real_defconfig
 create mode 100644 arch/arm/dts/dm365.dtsi
 create mode 100644 arch/arm/dts/virt2real.dts
 create mode 100644 arch/arm/mach-davinci/Kconfig
 create mode 100644 arch/arm/mach-davinci/Makefile
 create mode 100644 arch/arm/mach-davinci/include/mach/debug_ll.h
 create mode 100644 arch/arm/mach-davinci/include/mach/hardware.h
 create mode 100644 arch/arm/mach-davinci/include/mach/serial.h
 create mode 100644 arch/arm/mach-davinci/include/mach/time.h
 create mode 100644 arch/arm/mach-davinci/mach-davinci.dox
 create mode 100644 arch/arm/mach-davinci/time.c
 create mode 100644 drivers/gpio/gpio-davinci.c
 create mode 100644 include/linux/const.h

-- 
1.9.0


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[PATCH v2 01/10] import _AC and UL macros from linux kernel

[Antony Pavlov]

This macros are used in exported from linux TI DaVinci code.
Also this macros are used in MIPS cache support code.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
 arch/arm/include/asm/memory.h |  7 +++++++
 include/linux/const.h         | 27 +++++++++++++++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index 28afaa3..52114d0 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -3,6 +3,13 @@
 
 #include <memory.h>
 
+#include <linux/const.h>
+/*
+ * Allow for constants defined here to be used from assembly code
+ * by prepending the UL suffix only with actual C code compilation.
+ */
+#define UL(x) _AC(x, UL)
+
 static inline void arm_add_mem_device(const char* name, resource_size_t start,
 				    resource_size_t size)
 {
diff --git a/include/linux/const.h b/include/linux/const.h
new file mode 100644
index 0000000..c872bfd
--- /dev/null
+++ b/include/linux/const.h
@@ -0,0 +1,27 @@
+/* const.h: Macros for dealing with constants.  */
+
+#ifndef _LINUX_CONST_H
+#define _LINUX_CONST_H
+
+/* Some constant macros are used in both assembler and
+ * C code.  Therefore we cannot annotate them always with
+ * 'UL' and other type specifiers unilaterally.  We
+ * use the following macros to deal with this.
+ *
+ * Similarly, _AT() will cast an expression with a type in C, but
+ * leave it unchanged in asm.
+ */
+
+#ifdef __ASSEMBLY__
+#define _AC(X,Y)	X
+#define _AT(T,X)	X
+#else
+#define __AC(X,Y)	(X##Y)
+#define _AC(X,Y)	__AC(X,Y)
+#define _AT(T,X)	((T)(X))
+#endif
+
+#define _BITUL(x)	(_AC(1,UL) << (x))
+#define _BITULL(x)	(_AC(1,ULL) << (x))
+
+#endif /* !(_LINUX_CONST_H) */
-- 
1.9.0


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[PATCH v2 02/10] ARM: initial support for TI DaVinci SoCs

[Antony Pavlov]

This commit adds minimal support for the DaVinci DM365 SoCs
from Texas Instruments.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
 arch/arm/Kconfig                              |  5 ++
 arch/arm/Makefile                             |  1 +
 arch/arm/mach-davinci/Kconfig                 |  7 ++
 arch/arm/mach-davinci/Makefile                |  1 +
 arch/arm/mach-davinci/include/mach/hardware.h | 29 ++++++++
 arch/arm/mach-davinci/include/mach/serial.h   | 20 ++++++
 arch/arm/mach-davinci/include/mach/time.h     | 18 +++++
 arch/arm/mach-davinci/time.c                  | 95 +++++++++++++++++++++++++++
 8 files changed, 176 insertions(+)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 21f9012..42ff01b 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -54,6 +54,10 @@ config ARCH_CLPS711X
 	select GPIOLIB
 	select MFD_SYSCON
 
+config ARCH_DAVINCI
+	bool "TI Davinci"
+	select CPU_ARM926T
+
 config ARCH_EP93XX
 	bool "Cirrus Logic EP93xx"
 	select CPU_ARM920T
@@ -188,6 +192,7 @@ source arch/arm/cpu/Kconfig
 source arch/arm/mach-at91/Kconfig
 source arch/arm/mach-bcm2835/Kconfig
 source arch/arm/mach-clps711x/Kconfig
+source arch/arm/mach-davinci/Kconfig
 source arch/arm/mach-ep93xx/Kconfig
 source arch/arm/mach-highbank/Kconfig
 source arch/arm/mach-imx/Kconfig
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 2bbba35..c1bd836 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -54,6 +54,7 @@ AFLAGS   += -include asm/unified.h -msoft-float $(AFLAGS_THUMB2)
 machine-$(CONFIG_ARCH_AT91)		:= at91
 machine-$(CONFIG_ARCH_BCM2835)		:= bcm2835
 machine-$(CONFIG_ARCH_CLPS711X)		:= clps711x
+machine-$(CONFIG_ARCH_DAVINCI)		:= davinci
 machine-$(CONFIG_ARCH_EP93XX)		:= ep93xx
 machine-$(CONFIG_ARCH_HIGHBANK)		:= highbank
 machine-$(CONFIG_ARCH_IMX)		:= imx
diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
new file mode 100644
index 0000000..5677f8d
--- /dev/null
+++ b/arch/arm/mach-davinci/Kconfig
@@ -0,0 +1,7 @@
+if ARCH_DAVINCI
+
+config ARCH_TEXT_BASE
+	hex
+	default 0x82000000
+
+endif
diff --git a/arch/arm/mach-davinci/Makefile b/arch/arm/mach-davinci/Makefile
new file mode 100644
index 0000000..b96d414
--- /dev/null
+++ b/arch/arm/mach-davinci/Makefile
@@ -0,0 +1 @@
+obj-y += time.o
diff --git a/arch/arm/mach-davinci/include/mach/hardware.h b/arch/arm/mach-davinci/include/mach/hardware.h
new file mode 100644
index 0000000..ea9f481
--- /dev/null
+++ b/arch/arm/mach-davinci/include/mach/hardware.h
@@ -0,0 +1,29 @@
+/*
+ * Hardware definitions common to all DaVinci family processors
+ *
+ * Author: Kevin Hilman, Deep Root Systems, LLC
+ *
+ * 2007 (c) Deep Root Systems, LLC. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+#ifndef __ASM_ARCH_HARDWARE_H
+#define __ASM_ARCH_HARDWARE_H
+
+#include <asm/memory.h>
+
+/*
+ * Before you add anything to this file:
+ *
+ * This header is for defines common to ALL DaVinci family chips.
+ * Anything that is chip specific should go in <chipname>.h,
+ * and the chip/board init code should then explicitly include
+ * <chipname>.h
+ */
+/*
+ * I/O mapping
+ */
+#define IO_PHYS				UL(0x01c00000)
+
+#endif /* __ASM_ARCH_HARDWARE_H */
diff --git a/arch/arm/mach-davinci/include/mach/serial.h b/arch/arm/mach-davinci/include/mach/serial.h
new file mode 100644
index 0000000..bc7449f
--- /dev/null
+++ b/arch/arm/mach-davinci/include/mach/serial.h
@@ -0,0 +1,20 @@
+/*
+ * DaVinci serial device definitions
+ *
+ * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
+ *
+ * 2007 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+#ifndef __ASM_ARCH_SERIAL_H
+#define __ASM_ARCH_SERIAL_H
+
+#include <mach/hardware.h>
+
+#define DAVINCI_UART0_BASE	(IO_PHYS + 0x20000)
+#define DAVINCI_UART1_BASE	(IO_PHYS + 0x20400)
+#define DAVINCI_UART2_BASE	(IO_PHYS + 0x20800)
+
+#endif /* __ASM_ARCH_SERIAL_H */
diff --git a/arch/arm/mach-davinci/include/mach/time.h b/arch/arm/mach-davinci/include/mach/time.h
new file mode 100644
index 0000000..741e90c
--- /dev/null
+++ b/arch/arm/mach-davinci/include/mach/time.h
@@ -0,0 +1,18 @@
+/*
+ * Local header file for DaVinci time code.
+ *
+ * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
+ *
+ * 2007 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+#ifndef __ARCH_ARM_MACH_DAVINCI_TIME_H
+#define __ARCH_ARM_MACH_DAVINCI_TIME_H
+
+#include <mach/hardware.h>
+
+#define DAVINCI_WDOG_BASE		(IO_PHYS + 0x21C00)
+
+#endif /* __ARCH_ARM_MACH_DAVINCI_TIME_H */
diff --git a/arch/arm/mach-davinci/time.c b/arch/arm/mach-davinci/time.c
new file mode 100644
index 0000000..1e00719
--- /dev/null
+++ b/arch/arm/mach-davinci/time.c
@@ -0,0 +1,95 @@
+/*
+ * DaVinci timer subsystem
+ *
+ * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
+ *
+ * 2007 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#include <common.h>
+#include <io.h>
+
+#include <mach/time.h>
+
+/* Timer register offsets */
+#define PID12			0x0
+#define TIM12			0x10
+#define TIM34			0x14
+#define PRD12			0x18
+#define PRD34			0x1c
+#define TCR			0x20
+#define TGCR			0x24
+#define WDTCR			0x28
+
+/* Timer register bitfields */
+#define TCR_ENAMODE_DISABLE          0x0
+#define TCR_ENAMODE_ONESHOT          0x1
+#define TCR_ENAMODE_PERIODIC         0x2
+#define TCR_ENAMODE_MASK             0x3
+
+#define TGCR_TIMMODE_SHIFT           2
+#define TGCR_TIMMODE_64BIT_GP        0x0
+#define TGCR_TIMMODE_32BIT_UNCHAINED 0x1
+#define TGCR_TIMMODE_64BIT_WDOG      0x2
+#define TGCR_TIMMODE_32BIT_CHAINED   0x3
+
+#define TGCR_TIM12RS_SHIFT           0
+#define TGCR_TIM34RS_SHIFT           1
+#define TGCR_RESET                   0x0
+#define TGCR_UNRESET                 0x1
+#define TGCR_RESET_MASK              0x3
+
+#define WDTCR_WDEN_SHIFT             14
+#define WDTCR_WDEN_DISABLE           0x0
+#define WDTCR_WDEN_ENABLE            0x1
+#define WDTCR_WDKEY_SHIFT            16
+#define WDTCR_WDKEY_SEQ0             0xa5c6
+#define WDTCR_WDKEY_SEQ1             0xda7e
+
+/* reset board using watchdog timer */
+void __noreturn reset_cpu(ulong addr)
+{
+	u32 tgcr, wdtcr;
+	void __iomem *base;
+
+	base = IOMEM(DAVINCI_WDOG_BASE);
+
+	/* disable, internal clock source */
+	__raw_writel(0, base + TCR);
+
+	/* reset timer, set mode to 64-bit watchdog, and unreset */
+	tgcr = 0;
+	__raw_writel(tgcr, base + TGCR);
+	tgcr = TGCR_TIMMODE_64BIT_WDOG << TGCR_TIMMODE_SHIFT;
+	tgcr |= (TGCR_UNRESET << TGCR_TIM12RS_SHIFT) |
+		(TGCR_UNRESET << TGCR_TIM34RS_SHIFT);
+	__raw_writel(tgcr, base + TGCR);
+
+	/* clear counter and period regs */
+	__raw_writel(0, base + TIM12);
+	__raw_writel(0, base + TIM34);
+	__raw_writel(0, base + PRD12);
+	__raw_writel(0, base + PRD34);
+
+	/* put watchdog in pre-active state */
+	wdtcr = __raw_readl(base + WDTCR);
+	wdtcr = (WDTCR_WDKEY_SEQ0 << WDTCR_WDKEY_SHIFT) |
+		(WDTCR_WDEN_ENABLE << WDTCR_WDEN_SHIFT);
+	__raw_writel(wdtcr, base + WDTCR);
+
+	/* put watchdog in active state */
+	wdtcr = (WDTCR_WDKEY_SEQ1 << WDTCR_WDKEY_SHIFT) |
+		(WDTCR_WDEN_ENABLE << WDTCR_WDEN_SHIFT);
+	__raw_writel(wdtcr, base + WDTCR);
+
+	/* write an invalid value to the WDKEY field to trigger
+	 * a watchdog reset */
+	wdtcr = 0x00004000;
+	__raw_writel(wdtcr, base + WDTCR);
+
+	unreachable();
+}
+EXPORT_SYMBOL(reset_cpu);
-- 
1.9.0


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[PATCH v2 03/10] ARM: davinci: add DEBUG_LL support

[Antony Pavlov]

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
 arch/arm/Kconfig                              |  1 +
 arch/arm/mach-davinci/include/mach/debug_ll.h | 42 +++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 42ff01b..407f27d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -57,6 +57,7 @@ config ARCH_CLPS711X
 config ARCH_DAVINCI
 	bool "TI Davinci"
 	select CPU_ARM926T
+	select HAS_DEBUG_LL
 
 config ARCH_EP93XX
 	bool "Cirrus Logic EP93xx"
diff --git a/arch/arm/mach-davinci/include/mach/debug_ll.h b/arch/arm/mach-davinci/include/mach/debug_ll.h
new file mode 100644
index 0000000..587f408
--- /dev/null
+++ b/arch/arm/mach-davinci/include/mach/debug_ll.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2014 Antony Pavlov <antonynpavlov@gmail.com>
+ *
+ * This file is part of barebox.
+ * See file CREDITS for list of people who contributed to this project.
+ *
+ * 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.
+ *
+ * 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.
+ *
+ */
+
+/** @file
+ *  This File contains declaration for early output support
+ */
+#ifndef __INCLUDE_ARCH_DEBUG_LL_H__
+#define __INCLUDE_ARCH_DEBUG_LL_H__
+
+#include <asm/io.h>
+#include <mach/serial.h>
+
+#define DEBUG_LL_UART_ADDR	DAVINCI_UART0_BASE
+#define DEBUG_LL_UART_RSHFT	2
+
+#define rbr		(0 << DEBUG_LL_UART_RSHFT)
+#define lsr		(5 << DEBUG_LL_UART_RSHFT)
+#define LSR_THRE	0x20	/* Xmit holding register empty */
+
+static inline void PUTC_LL(char ch)
+{
+	while (!(__raw_readb(DEBUG_LL_UART_ADDR + lsr) & LSR_THRE))
+		;
+
+	__raw_writeb(ch, DEBUG_LL_UART_ADDR + rbr);
+}
+
+#endif /* __INCLUDE_ARCH_DEBUG_LL_H__ */
-- 
1.9.0


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[PATCH v2 04/10] ARM: davinci: add clocksource

[Antony Pavlov]

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
 arch/arm/mach-davinci/include/mach/time.h |   2 +
 arch/arm/mach-davinci/time.c              | 114 ++++++++++++++++++++++++++++++
 2 files changed, 116 insertions(+)

diff --git a/arch/arm/mach-davinci/include/mach/time.h b/arch/arm/mach-davinci/include/mach/time.h
index 741e90c..34781b6 100644
--- a/arch/arm/mach-davinci/include/mach/time.h
+++ b/arch/arm/mach-davinci/include/mach/time.h
@@ -13,6 +13,8 @@
 
 #include <mach/hardware.h>
 
+#define DAVINCI_TIMER0_BASE		(IO_PHYS + 0x21400)
+#define DAVINCI_TIMER1_BASE		(IO_PHYS + 0x21800)
 #define DAVINCI_WDOG_BASE		(IO_PHYS + 0x21C00)
 
 #endif /* __ARCH_ARM_MACH_DAVINCI_TIME_H */
diff --git a/arch/arm/mach-davinci/time.c b/arch/arm/mach-davinci/time.c
index 1e00719..60f0d19 100644
--- a/arch/arm/mach-davinci/time.c
+++ b/arch/arm/mach-davinci/time.c
@@ -11,6 +11,8 @@
 
 #include <common.h>
 #include <io.h>
+#include <init.h>
+#include <clock.h>
 
 #include <mach/time.h>
 
@@ -49,6 +51,118 @@
 #define WDTCR_WDKEY_SEQ0             0xa5c6
 #define WDTCR_WDKEY_SEQ1             0xda7e
 
+#define DAVINCI_TIMER_CLOCK 24000000
+
+struct timer_s {
+	void __iomem *base;
+	unsigned long tim_off;
+	unsigned long prd_off;
+	unsigned long enamode_shift;
+};
+
+static struct timer_s timers[] = {
+	{
+		.base = IOMEM(DAVINCI_TIMER0_BASE),
+		.enamode_shift = 6,
+		.tim_off = TIM12,
+		.prd_off = PRD12,
+	},
+	{
+		.base = IOMEM(DAVINCI_TIMER0_BASE),
+		.enamode_shift = 22,
+		.tim_off = TIM34,
+		.prd_off = PRD34,
+	},
+	{
+		.base = IOMEM(DAVINCI_TIMER1_BASE),
+		.enamode_shift = 6,
+		.tim_off = TIM12,
+		.prd_off = PRD12,
+	},
+	{
+		.base = IOMEM(DAVINCI_TIMER1_BASE),
+		.enamode_shift = 22,
+		.tim_off = TIM34,
+		.prd_off = PRD34,
+	},
+};
+
+static struct timer_s *t = &timers[0];
+
+static uint64_t davinci_cs_read(void)
+{
+	return (uint64_t)__raw_readl(t->base + t->tim_off);
+}
+
+static struct clocksource davinci_cs = {
+	.read	= davinci_cs_read,
+	.mask	= CLOCKSOURCE_MASK(32),
+};
+
+static int timer32_config(struct timer_s *t)
+{
+	u32 tcr;
+
+	tcr = __raw_readl(t->base + TCR);
+
+	/* disable timer */
+	tcr &= ~(TCR_ENAMODE_MASK << t->enamode_shift);
+	__raw_writel(tcr, t->base + TCR);
+
+	/* reset counter to zero, set new period */
+	__raw_writel(0, t->base + t->tim_off);
+	__raw_writel(0xffffffff, t->base + t->prd_off);
+
+	/* Set enable mode for periodic timer */
+	tcr |= TCR_ENAMODE_PERIODIC << t->enamode_shift;
+
+	__raw_writel(tcr, t->base + TCR);
+
+	return 0;
+}
+
+/* Global init of 64-bit timer as a whole */
+static void __init timer_init(void __iomem *base)
+{
+	u32 tgcr;
+
+	/* Disabled, Internal clock source */
+	__raw_writel(0, base + TCR);
+
+	/* reset both timers, no pre-scaler for timer34 */
+	tgcr = 0;
+	__raw_writel(tgcr, base + TGCR);
+
+	/* Set both timers to unchained 32-bit */
+	tgcr = TGCR_TIMMODE_32BIT_UNCHAINED << TGCR_TIMMODE_SHIFT;
+	__raw_writel(tgcr, base + TGCR);
+
+	/* Unreset timers */
+	tgcr |= (TGCR_UNRESET << TGCR_TIM12RS_SHIFT) |
+		(TGCR_UNRESET << TGCR_TIM34RS_SHIFT);
+	__raw_writel(tgcr, base + TGCR);
+
+	/* Init both counters to zero */
+	__raw_writel(0, base + TIM12);
+	__raw_writel(0, base + TIM34);
+}
+
+static int clocksource_init(void)
+{
+	clocks_calc_mult_shift(&davinci_cs.mult, &davinci_cs.shift,
+		DAVINCI_TIMER_CLOCK, NSEC_PER_SEC, 10);
+
+	init_clock(&davinci_cs);
+
+	timer_init(IOMEM(DAVINCI_TIMER0_BASE));
+	timer_init(IOMEM(DAVINCI_TIMER1_BASE));
+
+	timer32_config(t);
+
+	return 0;
+}
+core_initcall(clocksource_init);
+
 /* reset board using watchdog timer */
 void __noreturn reset_cpu(ulong addr)
 {
-- 
1.9.0


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[PATCH v2 05/10] gpio: add driver for TI DaVinci SoCs

[Antony Pavlov]

This driver is dts-only version of driver from Linux v3.14-rc5.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
 arch/arm/Kconfig            |   1 +
 drivers/gpio/Kconfig        |   7 ++
 drivers/gpio/Makefile       |   1 +
 drivers/gpio/gpio-davinci.c | 211 ++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 220 insertions(+)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 407f27d..3754646 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -58,6 +58,7 @@ config ARCH_DAVINCI
 	bool "TI Davinci"
 	select CPU_ARM926T
 	select HAS_DEBUG_LL
+	select GPIOLIB
 
 config ARCH_EP93XX
 	bool "Cirrus Logic EP93xx"
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 7c42656..7302955 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -20,6 +20,13 @@ config GPIO_CLPS711X
 	help
 	  Say yes here to enable the GPIO driver for the CLPS711X CPUs
 
+config GPIO_DAVINCI
+	bool "TI Davinci/Keystone GPIO support"
+	default y if ARCH_DAVINCI
+	depends on ARM && ARCH_DAVINCI
+	help
+	  Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
+
 config GPIO_GENERIC_PLATFORM
 	bool "Generic memory-mapped GPIO controller support"
 	select GPIO_GENERIC
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index b7c536d..68a76a3 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -1,6 +1,7 @@
 obj-$(CONFIG_GPIOLIB)		+= gpiolib.o
 
 obj-$(CONFIG_GPIO_BCM2835)	+= gpio-bcm2835.o
+obj-$(CONFIG_GPIO_DAVINCI)	+= gpio-davinci.o
 obj-$(CONFIG_GPIO_CLPS711X)	+= gpio-clps711x.o
 obj-$(CONFIG_GPIO_GENERIC)	+= gpio-generic.o
 obj-$(CONFIG_GPIO_IMX)		+= gpio-imx.o
diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c
new file mode 100644
index 0000000..7d15b85
--- /dev/null
+++ b/drivers/gpio/gpio-davinci.c
@@ -0,0 +1,211 @@
+/*
+ * TI DaVinci GPIO Support
+ *
+ * Copyright (c) 2006-2007 David Brownell
+ * Copyright (c) 2007, MontaVista Software, Inc. <source@mvista.com>
+ * Copyright (c) 2014 Antony Pavlov <antonynpavlov@gmail.com>
+ *
+ * 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.
+ */
+
+#include <common.h>
+#include <gpio.h>
+#include <init.h>
+#include <io.h>
+#include <linux/err.h>
+
+#define readl_relaxed	readl
+#define writel_relaxed	writel
+
+struct davinci_gpio_regs {
+	u32	dir;
+	u32	out_data;
+	u32	set_data;
+	u32	clr_data;
+	u32	in_data;
+	u32	set_rising;
+	u32	clr_rising;
+	u32	set_falling;
+	u32	clr_falling;
+	u32	intstat;
+};
+
+struct davinci_gpio_controller {
+	struct gpio_chip	chip;
+	/* Serialize access to GPIO registers */
+	void __iomem		*regs;
+	void __iomem		*set_data;
+	void __iomem		*clr_data;
+	void __iomem		*in_data;
+};
+
+#define chip2controller(chip)	\
+	container_of(chip, struct davinci_gpio_controller, chip)
+
+static struct davinci_gpio_regs __iomem *gpio2regs(void __iomem *gpio_base,
+							unsigned gpio)
+{
+	void __iomem *ptr;
+
+	if (gpio < 32 * 1)
+		ptr = gpio_base + 0x10;
+	else if (gpio < 32 * 2)
+		ptr = gpio_base + 0x38;
+	else if (gpio < 32 * 3)
+		ptr = gpio_base + 0x60;
+	else if (gpio < 32 * 4)
+		ptr = gpio_base + 0x88;
+	else if (gpio < 32 * 5)
+		ptr = gpio_base + 0xb0;
+	else
+		ptr = NULL;
+	return ptr;
+}
+
+static int davinci_get_direction(struct gpio_chip *chip, unsigned offset)
+{
+	struct davinci_gpio_controller *d = chip2controller(chip);
+	struct davinci_gpio_regs __iomem *g = d->regs;
+
+	return ((readl_relaxed(&g->dir)) & (1 << offset)) ?
+		GPIOF_DIR_IN : GPIOF_DIR_OUT;
+}
+
+static inline int __davinci_direction(struct gpio_chip *chip,
+			unsigned offset, bool out, int value)
+{
+	struct davinci_gpio_controller *d = chip2controller(chip);
+	struct davinci_gpio_regs __iomem *g = d->regs;
+	u32 temp;
+	u32 mask = 1 << offset;
+
+	temp = readl_relaxed(&g->dir);
+	if (out) {
+		temp &= ~mask;
+		writel_relaxed(mask, value ? &g->set_data : &g->clr_data);
+	} else {
+		temp |= mask;
+	}
+	writel_relaxed(temp, &g->dir);
+
+	return 0;
+}
+
+static int davinci_direction_in(struct gpio_chip *chip, unsigned offset)
+{
+	return __davinci_direction(chip, offset, false, 0);
+}
+
+static int
+davinci_direction_out(struct gpio_chip *chip, unsigned offset, int value)
+{
+	return __davinci_direction(chip, offset, true, value);
+}
+
+/*
+ * Read the pin's value (works even if it's set up as output);
+ * returns zero/nonzero.
+ *
+ * Note that changes are synched to the GPIO clock, so reading values back
+ * right after you've set them may give old values.
+ */
+static int davinci_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+	struct davinci_gpio_controller *d = chip2controller(chip);
+	struct davinci_gpio_regs __iomem *g = d->regs;
+
+	return (1 << offset) & readl_relaxed(&g->in_data);
+}
+
+/*
+ * Assuming the pin is muxed as a gpio output, set its output value.
+ */
+static void
+davinci_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+	struct davinci_gpio_controller *d = chip2controller(chip);
+	struct davinci_gpio_regs __iomem *g = d->regs;
+
+	writel_relaxed((1 << offset), value ? &g->set_data : &g->clr_data);
+}
+
+static struct gpio_ops davinci_gpio_ops = {
+	.direction_input = davinci_direction_in,
+	.direction_output = davinci_direction_out,
+	.get_direction = davinci_get_direction,
+	.get = davinci_gpio_get,
+	.set = davinci_gpio_set,
+};
+
+static int davinci_gpio_probe(struct device_d *dev)
+{
+	void __iomem *gpio_base;
+	int ret;
+	u32 val;
+	int i, base;
+	unsigned ngpio;
+	struct davinci_gpio_controller *chips;
+
+	ret = of_property_read_u32(dev->device_node, "ti,ngpio", &val);
+	if (ret) {
+		dev_err(dev, "could not read 'ti,ngpio' property\n");
+		return -EINVAL;
+	}
+
+	ngpio = val;
+
+	if (WARN_ON(ARCH_NR_GPIOS < ngpio))
+		ngpio = ARCH_NR_GPIOS;
+
+	chips = xzalloc((ngpio / 32 + 1) * sizeof(*chips));
+
+	gpio_base = dev_request_mem_region(dev, 0);
+	if (!gpio_base) {
+		dev_err(dev, "could not get memory region\n");
+		return -ENODEV;
+	}
+
+	for (i = 0, base = 0; base < ngpio; i++, base += 32) {
+		struct davinci_gpio_regs __iomem *regs;
+		struct gpio_chip *gc;
+
+		gc = &chips[i].chip;
+		gc->ops = &davinci_gpio_ops;
+
+		gc->dev = dev;
+		gc->base = base;
+		gc->ngpio = ngpio - base;
+		if (gc->ngpio > 32)
+			gc->ngpio = 32;
+
+		regs = gpio2regs(gpio_base, base);
+		chips[i].regs = regs;
+		chips[i].set_data = &regs->set_data;
+		chips[i].clr_data = &regs->clr_data;
+		chips[i].in_data = &regs->in_data;
+
+		gpiochip_add(gc);
+	}
+
+	return 0;
+}
+
+static struct of_device_id davinci_gpio_ids[] = {
+	{ .compatible = "ti,dm6441-gpio", },
+	{ /* sentinel */ },
+};
+
+static struct driver_d davinci_gpio_driver = {
+	.name		= "davinci_gpio",
+	.probe		= davinci_gpio_probe,
+	.of_compatible	= DRV_OF_COMPAT(davinci_gpio_ids),
+};
+
+static int davinci_gpio_drv_reg(void)
+{
+	return platform_driver_register(&davinci_gpio_driver);
+}
+coredevice_initcall(davinci_gpio_drv_reg);
-- 
1.9.0


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[PATCH v2 06/10] ARM: dts: Add TI TMS320DM365 devicetree file

[Antony Pavlov]

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
 arch/arm/dts/dm365.dtsi | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/arch/arm/dts/dm365.dtsi b/arch/arm/dts/dm365.dtsi
new file mode 100644
index 0000000..ea69007
--- /dev/null
+++ b/arch/arm/dts/dm365.dtsi
@@ -0,0 +1,28 @@
+#include "skeleton.dtsi"
+
+/ {
+	soc {
+		compatible = "simple-bus";
+		model = "TI TMS320DM365";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x0 0x01c00000 0x400000>;
+
+		serial0: serial@1c20000 {
+			compatible = "ns16550a";
+			reg = <0x20000 0x400>;
+			reg-shift = <2>;
+			clock-frequency = <24000000>;
+			status = "disabled";
+		};
+
+		gpio: gpio@1c67000 {
+			compatible = "ti,dm6441-gpio";
+			gpio-controller;
+			reg = <0x67000 0x800>;
+			#gpio-cells = <2>;
+			ti,ngpio = <107>;
+			status = "disabled";
+		};
+	};
+};
-- 
1.9.0


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[PATCH v2 07/10] ARM: davinci: add documentation

[Antony Pavlov]

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
 arch/arm/mach-arm.dox                  | 2 ++
 arch/arm/mach-davinci/mach-davinci.dox | 5 +++++
 2 files changed, 7 insertions(+)

diff --git a/arch/arm/mach-arm.dox b/arch/arm/mach-arm.dox
index 758df3f..1d2de48 100644
--- a/arch/arm/mach-arm.dox
+++ b/arch/arm/mach-arm.dox
@@ -54,6 +54,8 @@ For details on specific architectures:
 
 @subsection mach_arm_omap_info OMAP CPUs
 
+@li @subpage dev_davinci_arch
+
 @li @subpage dev_omap_arch
 
 @subsection mach_arm_s3c24xx_info S3C24XX CPUs
diff --git a/arch/arm/mach-davinci/mach-davinci.dox b/arch/arm/mach-davinci/mach-davinci.dox
new file mode 100644
index 0000000..f0f3a92
--- /dev/null
+++ b/arch/arm/mach-davinci/mach-davinci.dox
@@ -0,0 +1,5 @@
+/** @page dev_davinci_arch TI DaVinci in barebox
+
+@section davinci_boards DaVinci-based boards
+
+*/
-- 
1.9.0


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[PATCH v2 08/10] ARM: davinci: add virt2real board support

[Antony Pavlov]

The virt2real microcontroller, or virturilka,
is a miniature board for creation of WiFi
or internet controllable smart devices.

See http://virt2real.com for details.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
 arch/arm/boards/Makefile             |  1 +
 arch/arm/boards/virt2real/Makefile   |  1 +
 arch/arm/boards/virt2real/board.c    | 27 +++++++++++++++++++++++++++
 arch/arm/boards/virt2real/lowlevel.c | 34 ++++++++++++++++++++++++++++++++++
 arch/arm/dts/virt2real.dts           | 35 +++++++++++++++++++++++++++++++++++
 arch/arm/mach-davinci/Kconfig        |  9 +++++++++
 6 files changed, 107 insertions(+)

diff --git a/arch/arm/boards/Makefile b/arch/arm/boards/Makefile
index 0d8c9cf..e7af889 100644
--- a/arch/arm/boards/Makefile
+++ b/arch/arm/boards/Makefile
@@ -99,4 +99,5 @@ obj-$(CONFIG_MACH_USB_A9263)			+= usb-a926x/
 obj-$(CONFIG_MACH_USB_A9G20)			+= usb-a926x/
 obj-$(CONFIG_MACH_VERSATILEPB)			+= versatile/
 obj-$(CONFIG_MACH_VEXPRESS)			+= vexpress/
+obj-$(CONFIG_MACH_VIRT2REAL)			+= virt2real/
 obj-$(CONFIG_MACH_ZEDBOARD)			+= avnet-zedboard/
diff --git a/arch/arm/boards/virt2real/Makefile b/arch/arm/boards/virt2real/Makefile
new file mode 100644
index 0000000..b2f44bb
--- /dev/null
+++ b/arch/arm/boards/virt2real/Makefile
@@ -0,0 +1 @@
+obj-y += lowlevel.o board.o
diff --git a/arch/arm/boards/virt2real/board.c b/arch/arm/boards/virt2real/board.c
new file mode 100644
index 0000000..b7f7217
--- /dev/null
+++ b/arch/arm/boards/virt2real/board.c
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2014 Antony Pavlov <antonynpavlov@gmail.com>
+ *
+ * This file is part of barebox.
+ * See file CREDITS for list of people who contributed to this project.
+ *
+ * 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.
+ *
+ * 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.
+ *
+ */
+
+#include <common.h>
+#include <init.h>
+
+static int hostname_init(void)
+{
+	barebox_set_hostname("virt2real");
+
+	return 0;
+}
+core_initcall(hostname_init);
diff --git a/arch/arm/boards/virt2real/lowlevel.c b/arch/arm/boards/virt2real/lowlevel.c
new file mode 100644
index 0000000..3c90d78
--- /dev/null
+++ b/arch/arm/boards/virt2real/lowlevel.c
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2014 Antony Pavlov <antonynpavlov@gmail.com>
+ *
+ * This file is part of barebox.
+ * See file CREDITS for list of people who contributed to this project.
+ *
+ * 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.
+ *
+ * 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.
+ *
+ */
+
+#define __LOWLEVEL_INIT__
+
+#include <common.h>
+#include <asm/barebox-arm.h>
+#include <asm/barebox-arm-head.h>
+#include <init.h>
+#include <sizes.h>
+
+#define VIRT2REAL_SRAM_BASE 0x82000000
+#define VIRT2REAL_SRAM_SIZE SZ_16M
+
+void __naked __bare_init barebox_arm_reset_vector(void)
+{
+	arm_cpu_lowlevel_init();
+
+	barebox_arm_entry(VIRT2REAL_SRAM_BASE, VIRT2REAL_SRAM_SIZE, 0);
+}
diff --git a/arch/arm/dts/virt2real.dts b/arch/arm/dts/virt2real.dts
new file mode 100644
index 0000000..0e2210a
--- /dev/null
+++ b/arch/arm/dts/virt2real.dts
@@ -0,0 +1,35 @@
+/dts-v1/;
+
+#include "dm365.dtsi"
+
+/ {
+	model = "virt2real";
+
+	memory {
+		reg = <0x82000000 0x01000000>;
+	};
+
+	soc {
+		serial0: serial@1c20000 {
+			status = "okay";
+		};
+
+		gpio: gpio@1c67000 {
+			status = "okay";
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		green_led {
+			label = "green led";
+			gpios = <&gpio 73 0>;
+		};
+
+		red_led {
+			label = "red led";
+			gpios = <&gpio 74 0>;
+		};
+	};
+};
diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
index 5677f8d..3165d50 100644
--- a/arch/arm/mach-davinci/Kconfig
+++ b/arch/arm/mach-davinci/Kconfig
@@ -4,4 +4,13 @@ config ARCH_TEXT_BASE
 	hex
 	default 0x82000000
 
+choice
+	prompt "Davinci Board type"
+
+config MACH_VIRT2REAL
+	bool "Virt2Real"
+	select HAVE_DEFAULT_ENVIRONMENT_NEW
+
+endchoice
+
 endif
-- 
1.9.0


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[PATCH v2 09/10] ARM: virt2real: add documentation

[Antony Pavlov]

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
 Documentation/boards.dox                |  1 +
 arch/arm/boards/virt2real/virt2real.dox | 41 +++++++++++++++++++++++++++++++++
 arch/arm/mach-davinci/mach-davinci.dox  |  2 ++
 3 files changed, 44 insertions(+)

diff --git a/Documentation/boards.dox b/Documentation/boards.dox
index 6bcc14f..9a14aee 100644
--- a/Documentation/boards.dox
+++ b/Documentation/boards.dox
@@ -43,6 +43,7 @@ ARM type:
 @li @subpage tny-a9263
 @li @subpage usb-a9g20-lpw
 @li @subpage usb-a9263
+@li @subpage virt2real
 
 Blackfin type:
 
diff --git a/arch/arm/boards/virt2real/virt2real.dox b/arch/arm/boards/virt2real/virt2real.dox
new file mode 100644
index 0000000..fc38321
--- /dev/null
+++ b/arch/arm/boards/virt2real/virt2real.dox
@@ -0,0 +1,41 @@
+/** @page virt2real virt2real board
+
+virt2real is a is a miniature board for creation of WiFi
+or internet controllable smart devices.
+
+The board has
+@li TI DaVinchi DM365 running at 300 MHz
+@li 128 MiB DDR2 SDRAM;
+@li 256 MiB NAND Flash Memory;
+@li 2 x UART serial interfaces;
+@li 2 x Ethernet interfaces;
+@li 1 x USB interface;
+@li microSD card slot.
+
+The board uses U-Boot as bootloader.
+
+Barebox mini-howto:
+
+1. Connect to the boards's UART0 (115200 8N1);
+Use J2.2 (GND), J2.4 (UART0_TXD), J2.6(UART0_RXD) pins.
+
+2. Turn board's power on;
+
+3. Wait 'Hit any key to stop autoboot' prompt and press the space key.
+
+4. Upload barebox.bin via Ymodem
+@verbatim
+    virt2real ># loady
+@endverbatim
+
+5. Run barebox
+@verbatim
+    virt2real ># go 0x82000000
+@endverbatim
+
+virt2real links:
+@li http://virt2real.com/
+@li http://wiki.virt2real.ru/
+@li https://github.com/virt2real
+
+*/
diff --git a/arch/arm/mach-davinci/mach-davinci.dox b/arch/arm/mach-davinci/mach-davinci.dox
index f0f3a92..789eacc 100644
--- a/arch/arm/mach-davinci/mach-davinci.dox
+++ b/arch/arm/mach-davinci/mach-davinci.dox
@@ -2,4 +2,6 @@
 
 @section davinci_boards DaVinci-based boards
 
+@li @subpage virt2real
+
 */
-- 
1.9.0


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[PATCH v2 10/10] ARM: davinci: add virt2real_defconfig

[Antony Pavlov]

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
 arch/arm/configs/virt2real_defconfig | 49 ++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/arch/arm/configs/virt2real_defconfig b/arch/arm/configs/virt2real_defconfig
new file mode 100644
index 0000000..a81d18b
--- /dev/null
+++ b/arch/arm/configs/virt2real_defconfig
@@ -0,0 +1,49 @@
+CONFIG_BUILTIN_DTB=y
+CONFIG_BUILTIN_DTB_NAME="virt2real"
+CONFIG_ARCH_DAVINCI=y
+CONFIG_AEABI=y
+CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS=y
+CONFIG_TEXT_BASE=0x82300000
+CONFIG_MALLOC_SIZE=0x200000
+CONFIG_MALLOC_TLSF=y
+CONFIG_PROMPT="virt2real: "
+CONFIG_LONGHELP=y
+CONFIG_GLOB=y
+CONFIG_HUSH_FANCY_PROMPT=y
+CONFIG_CMDLINE_EDITING=y
+CONFIG_AUTO_COMPLETE=y
+CONFIG_MENU=y
+CONFIG_PASSWORD=y
+CONFIG_PARTITION=y
+CONFIG_CMD_EDIT=y
+CONFIG_CMD_SLEEP=y
+CONFIG_CMD_EXPORT=y
+CONFIG_CMD_PRINTENV=y
+CONFIG_CMD_READLINE=y
+CONFIG_CMD_ECHO_E=y
+CONFIG_CMD_LOADB=y
+CONFIG_CMD_LOADY=y
+CONFIG_CMD_MEMINFO=y
+CONFIG_CMD_IOMEM=y
+CONFIG_CMD_MM=y
+# CONFIG_CMD_BOOTM is not set
+# CONFIG_CMD_BOOTU is not set
+CONFIG_CMD_RESET=y
+CONFIG_CMD_GO=y
+CONFIG_CMD_OFTREE=y
+CONFIG_CMD_OF_PROPERTY=y
+CONFIG_CMD_OF_NODE=y
+CONFIG_CMD_TIMEOUT=y
+CONFIG_CMD_PARTITION=y
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_UNCOMPRESS=y
+CONFIG_CMD_LED=y
+CONFIG_OFDEVICE=y
+CONFIG_OF_BAREBOX_DRIVERS=y
+CONFIG_DRIVER_SERIAL_NS16550=y
+# CONFIG_SPI is not set
+CONFIG_LED=y
+CONFIG_LED_GPIO=y
+CONFIG_LED_GPIO_OF=y
+CONFIG_SHA1=y
+CONFIG_SHA256=y
-- 
1.9.0


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Re: [PATCH v2 06/10] ARM: dts: Add TI TMS320DM365 devicetree file

[Sascha Hauer]

On Sun, Mar 16, 2014 at 05:48:17PM +0400, Antony Pavlov wrote:
> Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
> ---
>  arch/arm/dts/dm365.dtsi | 28 ++++++++++++++++++++++++++++
>  1 file changed, 28 insertions(+)
> 
> diff --git a/arch/arm/dts/dm365.dtsi b/arch/arm/dts/dm365.dtsi
> new file mode 100644
> index 0000000..ea69007
> --- /dev/null
> +++ b/arch/arm/dts/dm365.dtsi
> @@ -0,0 +1,28 @@
> +#include "skeleton.dtsi"
> +
> +/ {
> +	soc {
> +		compatible = "simple-bus";
> +		model = "TI TMS320DM365";
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		ranges = <0x0 0x01c00000 0x400000>;
> +
> +		serial0: serial@1c20000 {
> +			compatible = "ns16550a";
> +			reg = <0x20000 0x400>;
> +			reg-shift = <2>;
> +			clock-frequency = <24000000>;
> +			status = "disabled";
> +		};
> +
> +		gpio: gpio@1c67000 {
> +			compatible = "ti,dm6441-gpio";
> +			gpio-controller;
> +			reg = <0x67000 0x800>;
> +			#gpio-cells = <2>;
> +			ti,ngpio = <107>;
> +			status = "disabled";

The device should be enabled in the dtsi. Virtually every board wants to
use it.

Sascha

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

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Re: [PATCH v2 08/10] ARM: davinci: add virt2real board support

[Sascha Hauer]

On Sun, Mar 16, 2014 at 05:48:19PM +0400, Antony Pavlov wrote:
> The virt2real microcontroller, or virturilka,
> is a miniature board for creation of WiFi
> or internet controllable smart devices.
> 
> See http://virt2real.com for details.
> +/ {
> +	model = "virt2real";
> +
> +	memory {
> +		reg = <0x82000000 0x01000000>;
> +	};
> +
> +	soc {
> +		serial0: serial@1c20000 {
> +			status = "okay";
> +		};
> +
> +		gpio: gpio@1c67000 {
> +			status = "okay";
> +		};
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +
> +		green_led {
> +			label = "green led";
> +			gpios = <&gpio 73 0>;
> +		};

You should use labels without whitespaces. I'm not sure if all layers in
barebox and the kernel handle whitespaces correctly.

Sascha

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

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