---

yaml
---
r: 56328
b: refs/heads/master
c: 7c6337e
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7fdc7849d2f9f926cbaec224bbcbacb164b07b23
+refs/heads/master: 7c6337e225364870e9bf02a3ae277d9fdea483f8

trunk/arch/arm/Kconfig

@@ -384,6 +384,13 @@ config ARCH_OMAP
 	help
 	  Support for TI's OMAP platform (OMAP1 and OMAP2).
 
+config ARCH_DAVINCI
+	bool "TI DaVinci"
+	select GENERIC_TIME
+	select GENERIC_CLOCKEVENTS
+	help
+	  Support for TI's DaVinci platform.
+
 endchoice
 
 source "arch/arm/mach-clps711x/Kconfig"
@@ -445,6 +452,8 @@ source "arch/arm/mach-netx/Kconfig"
 
 source "arch/arm/mach-ns9xxx/Kconfig"
 
+source "arch/arm/mach-davinci/Kconfig"
+
 # Definitions to make life easier
 config ARCH_ACORN
 	bool
@@ -674,7 +683,7 @@ config LEDS
 		   ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
 		   ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
 		   ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
-		   ARCH_AT91 || MACH_TRIZEPS4
+		   ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI
 	help
 	  If you say Y here, the LEDs on your machine will be used
 	  to provide useful information about your current system status.

trunk/arch/arm/Makefile

@@ -135,6 +135,7 @@ endif
  machine-$(CONFIG_ARCH_NETX)	   := netx
  machine-$(CONFIG_ARCH_NS9XXX)	   := ns9xxx
  textofs-$(CONFIG_ARCH_NS9XXX)	   := 0x00108000
+ machine-$(CONFIG_ARCH_DAVINCI)	   := davinci
 
 ifeq ($(CONFIG_ARCH_EBSA110),y)
 # This is what happens if you forget the IOCS16 line.

trunk/arch/arm/mach-davinci/Kconfig

@@ -0,0 +1,23 @@
+if ARCH_DAVINCI
+
+menu "TI DaVinci Implementations"
+
+comment "DaVinci Core Type"
+
+config ARCH_DAVINCI644x
+	default y
+	bool "DaVinci 644x based system"
+
+comment "DaVinci Board Type"
+
+config MACH_DAVINCI_EVM
+	bool "TI DaVinci EVM"
+	default y
+	depends on ARCH_DAVINCI644x
+	help
+	  Configure this option to specify the whether the board used
+	  for development is a DaVinci EVM
+
+endmenu
+
+endif

trunk/arch/arm/mach-davinci/Makefile

@@ -0,0 +1,10 @@
+#
+# Makefile for the linux kernel.
+#
+#
+
+# Common objects
+obj-y 			:= time.o irq.o serial.o io.o id.o psc.o
+
+# Board specific
+obj-$(CONFIG_MACH_DAVINCI_EVM)  += board-evm.o

trunk/arch/arm/mach-davinci/Makefile.boot

@@ -0,0 +1,3 @@
+   zreladdr-y	:= 0x80008000
+params_phys-y	:= 0x80000100
+initrd_phys-y	:= 0x80800000

trunk/arch/arm/mach-davinci/board-evm.c

@@ -0,0 +1,131 @@
+/*
+ * TI DaVinci EVM board support
+ *
+ * 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 <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+
+#include <asm/setup.h>
+#include <asm/io.h>
+#include <asm/mach-types.h>
+#include <asm/hardware.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/flash.h>
+
+#include <asm/arch/common.h>
+
+/* other misc. init functions */
+void __init davinci_psc_init(void);
+void __init davinci_irq_init(void);
+void __init davinci_map_common_io(void);
+
+/* NOR Flash base address set to CS0 by default */
+#define NOR_FLASH_PHYS 0x02000000
+
+static struct mtd_partition davinci_evm_partitions[] = {
+	/* bootloader (U-Boot, etc) in first 4 sectors */
+	{
+		.name		= "bootloader",
+		.offset		= 0,
+		.size		= 4 * SZ_64K,
+		.mask_flags	= MTD_WRITEABLE, /* force read-only */
+	},
+	/* bootloader params in the next 1 sectors */
+	{
+		.name		= "params",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= SZ_64K,
+		.mask_flags	= 0,
+	},
+	/* kernel */
+	{
+		.name		= "kernel",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= SZ_2M,
+		.mask_flags	= 0
+	},
+	/* file system */
+	{
+		.name		= "filesystem",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= MTDPART_SIZ_FULL,
+		.mask_flags	= 0
+	}
+};
+
+static struct physmap_flash_data davinci_evm_flash_data = {
+	.width		= 2,
+	.parts		= davinci_evm_partitions,
+	.nr_parts	= ARRAY_SIZE(davinci_evm_partitions),
+};
+
+/* NOTE: CFI probe will correctly detect flash part as 32M, but EMIF
+ * limits addresses to 16M, so using addresses past 16M will wrap */
+static struct resource davinci_evm_flash_resource = {
+	.start		= NOR_FLASH_PHYS,
+	.end		= NOR_FLASH_PHYS + SZ_16M - 1,
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device davinci_evm_flash_device = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &davinci_evm_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &davinci_evm_flash_resource,
+};
+
+static struct platform_device *davinci_evm_devices[] __initdata = {
+	&davinci_evm_flash_device,
+};
+
+static void __init
+davinci_evm_map_io(void)
+{
+	davinci_map_common_io();
+}
+
+static __init void davinci_evm_init(void)
+{
+	davinci_psc_init();
+
+#if defined(CONFIG_BLK_DEV_DAVINCI) || defined(CONFIG_BLK_DEV_DAVINCI_MODULE)
+	printk(KERN_WARNING "WARNING: both IDE and NOR flash are enabled, "
+	       "but share pins.\n\t Disable IDE for NOR support.\n");
+#endif
+
+	platform_add_devices(davinci_evm_devices,
+			     ARRAY_SIZE(davinci_evm_devices));
+}
+
+static __init void davinci_evm_irq_init(void)
+{
+	davinci_irq_init();
+}
+
+MACHINE_START(DAVINCI_EVM, "DaVinci EVM")
+	/* Maintainer: MontaVista Software <source@mvista.com> */
+	.phys_io      = IO_PHYS,
+	.io_pg_offst  = (io_p2v(IO_PHYS) >> 18) & 0xfffc,
+	.boot_params  = (DAVINCI_DDR_BASE + 0x100),
+	.map_io	      = davinci_evm_map_io,
+	.init_irq     = davinci_evm_irq_init,
+	.timer	      = &davinci_timer,
+	.init_machine = davinci_evm_init,
+MACHINE_END

trunk/arch/arm/mach-davinci/id.c

@@ -0,0 +1,94 @@
+/*
+ * Davinci CPU identification code
+ *
+ * Copyright (C) 2006 Komal Shah <komal_shah802003@yahoo.com>
+ *
+ * Derived from OMAP1 CPU identification code.
+ *
+ * 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/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/io.h>
+
+#define JTAG_ID_BASE		0x01c40028
+
+struct davinci_id {
+	u8	variant;	/* JTAG ID bits 31:28 */
+	u16	part_no;	/* JTAG ID bits 27:12 */
+	u32	manufacturer;	/* JTAG ID bits 11:1 */
+	u32	type;		/* Cpu id bits [31:8], cpu class bits [7:0] */
+};
+
+/* Register values to detect the DaVinci version */
+static struct davinci_id davinci_ids[] __initdata = {
+	{
+		/* DM6446 */
+		.part_no      = 0xb700,
+		.variant      = 0x0,
+		.manufacturer = 0x017,
+		.type	      = 0x64460000,
+	},
+};
+
+/*
+ * Get Device Part No. from JTAG ID register
+ */
+static u16 __init davinci_get_part_no(void)
+{
+	u32 dev_id, part_no;
+
+	dev_id = davinci_readl(JTAG_ID_BASE);
+
+	part_no = ((dev_id >> 12) & 0xffff);
+
+	return part_no;
+}
+
+/*
+ * Get Device Revision from JTAG ID register
+ */
+static u8 __init davinci_get_variant(void)
+{
+	u32 variant;
+
+	variant = davinci_readl(JTAG_ID_BASE);
+
+	variant = (variant >> 28) & 0xf;
+
+	return variant;
+}
+
+void __init davinci_check_revision(void)
+{
+	int i;
+	u16 part_no;
+	u8 variant;
+
+	part_no = davinci_get_part_no();
+	variant = davinci_get_variant();
+
+	/* First check only the major version in a safe way */
+	for (i = 0; i < ARRAY_SIZE(davinci_ids); i++) {
+		if (part_no == (davinci_ids[i].part_no)) {
+			system_rev = davinci_ids[i].type;
+			break;
+		}
+	}
+
+	/* Check if we can find the dev revision */
+	for (i = 0; i < ARRAY_SIZE(davinci_ids); i++) {
+		if (part_no == davinci_ids[i].part_no &&
+		    variant == davinci_ids[i].variant) {
+			system_rev = davinci_ids[i].type;
+			break;
+		}
+	}
+
+	printk("DaVinci DM%04x variant 0x%x\n", system_rev >> 16, variant);
+}

trunk/arch/arm/mach-davinci/io.c

@@ -0,0 +1,51 @@
+/*
+ * DaVinci I/O mapping code
+ *
+ * Copyright (C) 2005-2006 Texas Instruments
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/tlb.h>
+#include <asm/io.h>
+#include <asm/memory.h>
+
+#include <asm/mach/map.h>
+
+extern void davinci_check_revision(void);
+
+/*
+ * The machine specific code may provide the extra mapping besides the
+ * default mapping provided here.
+ */
+static struct map_desc davinci_io_desc[] __initdata = {
+	{
+		.virtual	= IO_VIRT,
+		.pfn		= __phys_to_pfn(IO_PHYS),
+		.length		= IO_SIZE,
+		.type		= MT_DEVICE
+	},
+};
+
+void __init davinci_map_common_io(void)
+{
+	iotable_init(davinci_io_desc, ARRAY_SIZE(davinci_io_desc));
+
+	/* Normally devicemaps_init() would flush caches and tlb after
+	 * mdesc->map_io(), but we must also do it here because of the CPU
+	 * revision check below.
+	 */
+	local_flush_tlb_all();
+	flush_cache_all();
+
+	/* We want to check CPU revision early for cpu_is_xxxx() macros.
+	 * IO space mapping must be initialized before we can do that.
+	 */
+	davinci_check_revision();
+}