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authorKevin Hilman <khilman@mvista.com>2007-04-30 19:37:19 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2007-05-11 17:26:55 +0100
commit7c6337e225364870e9bf02a3ae277d9fdea483f8 (patch)
tree1ba5819dfc424beea0086cd3b855839be29370dd /include/asm-arm/arch-davinci
parent7fdc7849d2f9f926cbaec224bbcbacb164b07b23 (diff)
[ARM] 4303/3: base kernel support for TI DaVinci
Add base kernel support for the TI DaVinci platform. This patch only includes interrupts, timers, CPU identification, serial support and basic power and sleep controller init. More drivers to come. Signed-off-by: Kevin Hilman <khilman@mvista.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/arch-davinci')
-rw-r--r--include/asm-arm/arch-davinci/common.h19
-rw-r--r--include/asm-arm/arch-davinci/debug-macro.S21
-rw-r--r--include/asm-arm/arch-davinci/dma.h16
-rw-r--r--include/asm-arm/arch-davinci/entry-macro.S32
-rw-r--r--include/asm-arm/arch-davinci/hardware.h14
-rw-r--r--include/asm-arm/arch-davinci/io.h79
-rw-r--r--include/asm-arm/arch-davinci/irqs.h105
-rw-r--r--include/asm-arm/arch-davinci/memory.h64
-rw-r--r--include/asm-arm/arch-davinci/psc.h76
-rw-r--r--include/asm-arm/arch-davinci/serial.h20
-rw-r--r--include/asm-arm/arch-davinci/system.h29
-rw-r--r--include/asm-arm/arch-davinci/timex.h17
-rw-r--r--include/asm-arm/arch-davinci/uncompress.h35
-rw-r--r--include/asm-arm/arch-davinci/vmalloc.h15
14 files changed, 542 insertions, 0 deletions
diff --git a/include/asm-arm/arch-davinci/common.h b/include/asm-arm/arch-davinci/common.h
new file mode 100644
index 00000000000..a97dfbb15e5
--- /dev/null
+++ b/include/asm-arm/arch-davinci/common.h
@@ -0,0 +1,19 @@
+/*
+ * Header for code common to all DaVinci machines.
+ *
+ * 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_COMMON_H
+#define __ARCH_ARM_MACH_DAVINCI_COMMON_H
+
+struct sys_timer;
+
+extern struct sys_timer davinci_timer;
+
+#endif /* __ARCH_ARM_MACH_DAVINCI_COMMON_H */
diff --git a/include/asm-arm/arch-davinci/debug-macro.S b/include/asm-arm/arch-davinci/debug-macro.S
new file mode 100644
index 00000000000..e6c0f0d5d06
--- /dev/null
+++ b/include/asm-arm/arch-davinci/debug-macro.S
@@ -0,0 +1,21 @@
+/*
+ * Debugging macro for DaVinci
+ *
+ * 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.
+ */
+
+ .macro addruart, rx
+ mrc p15, 0, \rx, c1, c0
+ tst \rx, #1 @ MMU enabled?
+ moveq \rx, #0x01000000 @ physical base address
+ movne \rx, #0xfe000000 @ virtual base
+ orr \rx, \rx, #0x00c20000 @ UART 0
+ .endm
+
+#define UART_SHIFT 2
+#include <asm/hardware/debug-8250.S>
diff --git a/include/asm-arm/arch-davinci/dma.h b/include/asm-arm/arch-davinci/dma.h
new file mode 100644
index 00000000000..8e2f2d0ba66
--- /dev/null
+++ b/include/asm-arm/arch-davinci/dma.h
@@ -0,0 +1,16 @@
+/*
+ * DaVinci DMA 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_DMA_H
+#define __ASM_ARCH_DMA_H
+
+#define MAX_DMA_ADDRESS 0xffffffff
+
+#endif /* __ASM_ARCH_DMA_H */
diff --git a/include/asm-arm/arch-davinci/entry-macro.S b/include/asm-arm/arch-davinci/entry-macro.S
new file mode 100644
index 00000000000..3ebfcc5cb58
--- /dev/null
+++ b/include/asm-arm/arch-davinci/entry-macro.S
@@ -0,0 +1,32 @@
+/*
+ * Low-level IRQ helper macros for TI DaVinci-based platforms
+ *
+ * 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 <asm/arch/io.h>
+#include <asm/arch/irqs.h>
+
+ .macro disable_fiq
+ .endm
+
+ .macro get_irqnr_preamble, base, tmp
+ ldr \base, =IO_ADDRESS(DAVINCI_ARM_INTC_BASE)
+ .endm
+
+ .macro arch_ret_to_user, tmp1, tmp2
+ .endm
+
+ .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
+ ldr \tmp, [\base, #0x14]
+ mov \tmp, \tmp, lsr #2
+ sub \irqnr, \tmp, #1
+ cmp \tmp, #0
+ .endm
+
+ .macro irq_prio_table
+ .endm
diff --git a/include/asm-arm/arch-davinci/hardware.h b/include/asm-arm/arch-davinci/hardware.h
new file mode 100644
index 00000000000..60362d80229
--- /dev/null
+++ b/include/asm-arm/arch-davinci/hardware.h
@@ -0,0 +1,14 @@
+/*
+ * Common hardware 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_HARDWARE_H
+#define __ASM_ARCH_HARDWARE_H
+
+#endif /* __ASM_ARCH_HARDWARE_H */
diff --git a/include/asm-arm/arch-davinci/io.h b/include/asm-arm/arch-davinci/io.h
new file mode 100644
index 00000000000..e7accb91086
--- /dev/null
+++ b/include/asm-arm/arch-davinci/io.h
@@ -0,0 +1,79 @@
+/*
+ * DaVinci IO address definitions
+ *
+ * Copied from include/asm/arm/arch-omap/io.h
+ *
+ * 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_IO_H
+#define __ASM_ARCH_IO_H
+
+#define IO_SPACE_LIMIT 0xffffffff
+
+/*
+ * ----------------------------------------------------------------------------
+ * I/O mapping
+ * ----------------------------------------------------------------------------
+ */
+#define IO_PHYS 0x01c00000
+#define IO_OFFSET 0xfd000000 /* Virtual IO = 0xfec00000 */
+#define IO_SIZE 0x00400000
+#define IO_VIRT (IO_PHYS + IO_OFFSET)
+#define io_p2v(pa) ((pa) + IO_OFFSET)
+#define io_v2p(va) ((va) - IO_OFFSET)
+#define IO_ADDRESS(x) io_p2v(x)
+
+/*
+ * We don't actually have real ISA nor PCI buses, but there is so many
+ * drivers out there that might just work if we fake them...
+ */
+#define PCIO_BASE 0
+#define __io(a) ((void __iomem *)(PCIO_BASE + (a)))
+#define __mem_pci(a) (a)
+#define __mem_isa(a) (a)
+
+#ifndef __ASSEMBLER__
+
+/*
+ * Functions to access the DaVinci IO region
+ *
+ * NOTE: - Use davinci_read/write[bwl] for physical register addresses
+ * - Use __raw_read/write[bwl]() for virtual register addresses
+ * - Use IO_ADDRESS(phys_addr) to convert registers to virtual addresses
+ * - DO NOT use hardcoded virtual addresses to allow changing the
+ * IO address space again if needed
+ */
+#define davinci_readb(a) (*(volatile unsigned char *)IO_ADDRESS(a))
+#define davinci_readw(a) (*(volatile unsigned short *)IO_ADDRESS(a))
+#define davinci_readl(a) (*(volatile unsigned int *)IO_ADDRESS(a))
+
+#define davinci_writeb(v,a) (*(volatile unsigned char *)IO_ADDRESS(a) = (v))
+#define davinci_writew(v,a) (*(volatile unsigned short *)IO_ADDRESS(a) = (v))
+#define davinci_writel(v,a) (*(volatile unsigned int *)IO_ADDRESS(a) = (v))
+
+/* 16 bit uses LDRH/STRH, base +/- offset_8 */
+typedef struct { volatile u16 offset[256]; } __regbase16;
+#define __REGV16(vaddr) ((__regbase16 *)((vaddr)&~0xff)) \
+ ->offset[((vaddr)&0xff)>>1]
+#define __REG16(paddr) __REGV16(io_p2v(paddr))
+
+/* 8/32 bit uses LDR/STR, base +/- offset_12 */
+typedef struct { volatile u8 offset[4096]; } __regbase8;
+#define __REGV8(vaddr) ((__regbase8 *)((vaddr)&~4095)) \
+ ->offset[((vaddr)&4095)>>0]
+#define __REG8(paddr) __REGV8(io_p2v(paddr))
+
+typedef struct { volatile u32 offset[4096]; } __regbase32;
+#define __REGV32(vaddr) ((__regbase32 *)((vaddr)&~4095)) \
+ ->offset[((vaddr)&4095)>>2]
+
+#define __REG(paddr) __REGV32(io_p2v(paddr))
+#else
+
+#define __REG(x) (*((volatile unsigned long *)io_p2v(x)))
+
+#endif /* __ASSEMBLER__ */
+#endif /* __ASM_ARCH_IO_H */
diff --git a/include/asm-arm/arch-davinci/irqs.h b/include/asm-arm/arch-davinci/irqs.h
new file mode 100644
index 00000000000..f4c5ca6da9f
--- /dev/null
+++ b/include/asm-arm/arch-davinci/irqs.h
@@ -0,0 +1,105 @@
+/*
+ * DaVinci interrupt controller definitions
+ *
+ * Copyright (C) 2006 Texas Instruments.
+ *
+ * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+#ifndef __ASM_ARCH_IRQS_H
+#define __ASM_ARCH_IRQS_H
+
+/* Base address */
+#define DAVINCI_ARM_INTC_BASE 0x01C48000
+
+/* Interrupt lines */
+#define IRQ_VDINT0 0
+#define IRQ_VDINT1 1
+#define IRQ_VDINT2 2
+#define IRQ_HISTINT 3
+#define IRQ_H3AINT 4
+#define IRQ_PRVUINT 5
+#define IRQ_RSZINT 6
+#define IRQ_VFOCINT 7
+#define IRQ_VENCINT 8
+#define IRQ_ASQINT 9
+#define IRQ_IMXINT 10
+#define IRQ_VLCDINT 11
+#define IRQ_USBINT 12
+#define IRQ_EMACINT 13
+
+#define IRQ_CCINT0 16
+#define IRQ_CCERRINT 17
+#define IRQ_TCERRINT0 18
+#define IRQ_TCERRINT 19
+#define IRQ_PSCIN 20
+
+#define IRQ_IDE 22
+#define IRQ_HPIINT 23
+#define IRQ_MBXINT 24
+#define IRQ_MBRINT 25
+#define IRQ_MMCINT 26
+#define IRQ_SDIOINT 27
+#define IRQ_MSINT 28
+#define IRQ_DDRINT 29
+#define IRQ_AEMIFINT 30
+#define IRQ_VLQINT 31
+#define IRQ_TINT0_TINT12 32
+#define IRQ_TINT0_TINT34 33
+#define IRQ_TINT1_TINT12 34
+#define IRQ_TINT1_TINT34 35
+#define IRQ_PWMINT0 36
+#define IRQ_PWMINT1 37
+#define IRQ_PWMINT2 38
+#define IRQ_I2C 39
+#define IRQ_UARTINT0 40
+#define IRQ_UARTINT1 41
+#define IRQ_UARTINT2 42
+#define IRQ_SPINT0 43
+#define IRQ_SPINT1 44
+
+#define IRQ_DSP2ARM0 46
+#define IRQ_DSP2ARM1 47
+#define IRQ_GPIO0 48
+#define IRQ_GPIO1 49
+#define IRQ_GPIO2 50
+#define IRQ_GPIO3 51
+#define IRQ_GPIO4 52
+#define IRQ_GPIO5 53
+#define IRQ_GPIO6 54
+#define IRQ_GPIO7 55
+#define IRQ_GPIOBNK0 56
+#define IRQ_GPIOBNK1 57
+#define IRQ_GPIOBNK2 58
+#define IRQ_GPIOBNK3 59
+#define IRQ_GPIOBNK4 60
+#define IRQ_COMMTX 61
+#define IRQ_COMMRX 62
+#define IRQ_EMUINT 63
+
+#define DAVINCI_N_AINTC_IRQ 64
+#define DAVINCI_N_GPIO 71
+
+#define NR_IRQS (DAVINCI_N_AINTC_IRQ + DAVINCI_N_GPIO)
+
+#define ARCH_TIMER_IRQ IRQ_TINT1_TINT34
+
+#endif /* __ASM_ARCH_IRQS_H */
diff --git a/include/asm-arm/arch-davinci/memory.h b/include/asm-arm/arch-davinci/memory.h
new file mode 100644
index 00000000000..dd1625c23cf
--- /dev/null
+++ b/include/asm-arm/arch-davinci/memory.h
@@ -0,0 +1,64 @@
+/*
+ * DaVinci memory space 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_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+/**************************************************************************
+ * Included Files
+ **************************************************************************/
+#include <asm/page.h>
+#include <asm/sizes.h>
+
+/**************************************************************************
+ * Definitions
+ **************************************************************************/
+#define DAVINCI_DDR_BASE 0x80000000
+#define DAVINCI_IRAM_BASE 0x00008000 /* ARM Internal RAM */
+
+#define PHYS_OFFSET DAVINCI_DDR_BASE
+
+/*
+ * Increase size of DMA-consistent memory region
+ */
+#define CONSISTENT_DMA_SIZE (14<<20)
+
+#ifndef __ASSEMBLY__
+/*
+ * Restrict DMA-able region to workaround silicon bug. The bug
+ * restricts buffers available for DMA to video hardware to be
+ * below 128M
+ */
+static inline void
+__arch_adjust_zones(int node, unsigned long *size, unsigned long *holes)
+{
+ unsigned int sz = (128<<20) >> PAGE_SHIFT;
+
+ if (node != 0)
+ sz = 0;
+
+ size[1] = size[0] - sz;
+ size[0] = sz;
+}
+
+#define arch_adjust_zones(node, zone_size, holes) \
+ if ((meminfo.bank[0].size >> 20) > 128) __arch_adjust_zones(node, zone_size, holes)
+
+#define ISA_DMA_THRESHOLD (PHYS_OFFSET + (128<<20) - 1)
+
+#endif
+
+/*
+ * Bus address is physical address
+ */
+#define __virt_to_bus(x) __virt_to_phys(x)
+#define __bus_to_virt(x) __phys_to_virt(x)
+
+#endif /* __ASM_ARCH_MEMORY_H */
diff --git a/include/asm-arm/arch-davinci/psc.h b/include/asm-arm/arch-davinci/psc.h
new file mode 100644
index 00000000000..4977aa071e1
--- /dev/null
+++ b/include/asm-arm/arch-davinci/psc.h
@@ -0,0 +1,76 @@
+/*
+ * DaVinci Power & Sleep Controller (PSC) defines
+ *
+ * Copyright (C) 2006 Texas Instruments.
+ *
+ * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+#ifndef __ASM_ARCH_PSC_H
+#define __ASM_ARCH_PSC_H
+
+/* Power and Sleep Controller (PSC) Domains */
+#define DAVINCI_GPSC_ARMDOMAIN 0
+#define DAVINCI_GPSC_DSPDOMAIN 1
+
+#define DAVINCI_LPSC_VPSSMSTR 0
+#define DAVINCI_LPSC_VPSSSLV 1
+#define DAVINCI_LPSC_TPCC 2
+#define DAVINCI_LPSC_TPTC0 3
+#define DAVINCI_LPSC_TPTC1 4
+#define DAVINCI_LPSC_EMAC 5
+#define DAVINCI_LPSC_EMAC_WRAPPER 6
+#define DAVINCI_LPSC_MDIO 7
+#define DAVINCI_LPSC_IEEE1394 8
+#define DAVINCI_LPSC_USB 9
+#define DAVINCI_LPSC_ATA 10
+#define DAVINCI_LPSC_VLYNQ 11
+#define DAVINCI_LPSC_UHPI 12
+#define DAVINCI_LPSC_DDR_EMIF 13
+#define DAVINCI_LPSC_AEMIF 14
+#define DAVINCI_LPSC_MMC_SD 15
+#define DAVINCI_LPSC_MEMSTICK 16
+#define DAVINCI_LPSC_McBSP 17
+#define DAVINCI_LPSC_I2C 18
+#define DAVINCI_LPSC_UART0 19
+#define DAVINCI_LPSC_UART1 20
+#define DAVINCI_LPSC_UART2 21
+#define DAVINCI_LPSC_SPI 22
+#define DAVINCI_LPSC_PWM0 23
+#define DAVINCI_LPSC_PWM1 24
+#define DAVINCI_LPSC_PWM2 25
+#define DAVINCI_LPSC_GPIO 26
+#define DAVINCI_LPSC_TIMER0 27
+#define DAVINCI_LPSC_TIMER1 28
+#define DAVINCI_LPSC_TIMER2 29
+#define DAVINCI_LPSC_SYSTEM_SUBSYS 30
+#define DAVINCI_LPSC_ARM 31
+#define DAVINCI_LPSC_SCR2 32
+#define DAVINCI_LPSC_SCR3 33
+#define DAVINCI_LPSC_SCR4 34
+#define DAVINCI_LPSC_CROSSBAR 35
+#define DAVINCI_LPSC_CFG27 36
+#define DAVINCI_LPSC_CFG3 37
+#define DAVINCI_LPSC_CFG5 38
+#define DAVINCI_LPSC_GEM 39
+#define DAVINCI_LPSC_IMCOP 40
+
+#endif /* __ASM_ARCH_PSC_H */
diff --git a/include/asm-arm/arch-davinci/serial.h b/include/asm-arm/arch-davinci/serial.h
new file mode 100644
index 00000000000..ed418ef7680
--- /dev/null
+++ b/include/asm-arm/arch-davinci/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 <asm/arch/io.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/include/asm-arm/arch-davinci/system.h b/include/asm-arm/arch-davinci/system.h
new file mode 100644
index 00000000000..440ac515804
--- /dev/null
+++ b/include/asm-arm/arch-davinci/system.h
@@ -0,0 +1,29 @@
+/*
+ * DaVinci system defines
+ *
+ * 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_SYSTEM_H
+#define __ASM_ARCH_SYSTEM_H
+
+#include <asm/io.h>
+#include <asm/hardware.h>
+
+extern void davinci_watchdog_reset(void);
+
+static void arch_idle(void)
+{
+ cpu_do_idle();
+}
+
+static void arch_reset(char mode)
+{
+ davinci_watchdog_reset();
+}
+
+#endif /* __ASM_ARCH_SYSTEM_H */
diff --git a/include/asm-arm/arch-davinci/timex.h b/include/asm-arm/arch-davinci/timex.h
new file mode 100644
index 00000000000..52827567841
--- /dev/null
+++ b/include/asm-arm/arch-davinci/timex.h
@@ -0,0 +1,17 @@
+/*
+ * DaVinci timer defines
+ *
+ * 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_TIMEX_H
+#define __ASM_ARCH_TIMEX_H
+
+/* The source frequency for the timers is the 27MHz clock */
+#define CLOCK_TICK_RATE 27000000
+
+#endif /* __ASM_ARCH_TIMEX_H__ */
diff --git a/include/asm-arm/arch-davinci/uncompress.h b/include/asm-arm/arch-davinci/uncompress.h
new file mode 100644
index 00000000000..f6d1570f720
--- /dev/null
+++ b/include/asm-arm/arch-davinci/uncompress.h
@@ -0,0 +1,35 @@
+/*
+ * Serial port stubs for kernel decompress status messages
+ *
+ * Author: Anant Gole
+ * (C) Copyright (C) 2006, Texas Instruments, 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 <linux/types.h>
+#include <linux/serial_reg.h>
+#include <asm/arch/serial.h>
+
+/* PORT_16C550A, in polled non-fifo mode */
+
+static void putc(char c)
+{
+ volatile u32 *uart = (volatile void *) DAVINCI_UART0_BASE;
+
+ while (!(uart[UART_LSR] & UART_LSR_THRE))
+ barrier();
+ uart[UART_TX] = c;
+}
+
+static inline void flush(void)
+{
+ volatile u32 *uart = (volatile void *) DAVINCI_UART0_BASE;
+ while (!(uart[UART_LSR] & UART_LSR_THRE))
+ barrier();
+}
+
+#define arch_decomp_setup()
+#define arch_decomp_wdog()
diff --git a/include/asm-arm/arch-davinci/vmalloc.h b/include/asm-arm/arch-davinci/vmalloc.h
new file mode 100644
index 00000000000..9b47fa89b33
--- /dev/null
+++ b/include/asm-arm/arch-davinci/vmalloc.h
@@ -0,0 +1,15 @@
+/*
+ * DaVinci vmalloc 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.
+ */
+#include <asm/memory.h>
+#include <asm/arch/io.h>
+
+/* Allow vmalloc range until the IO virtual range minus a 2M "hole" */
+#define VMALLOC_END (IO_VIRT - (2<<20))