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authorKevin Hilman <khilman@mvista.com>2007-04-30 14:37:19 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2007-05-11 12:26:55 -0400
commit7c6337e225364870e9bf02a3ae277d9fdea483f8 (patch)
tree1ba5819dfc424beea0086cd3b855839be29370dd
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
-rw-r--r--arch/arm/Kconfig11
-rw-r--r--arch/arm/Makefile1
-rw-r--r--arch/arm/mach-davinci/Kconfig23
-rw-r--r--arch/arm/mach-davinci/Makefile10
-rw-r--r--arch/arm/mach-davinci/Makefile.boot3
-rw-r--r--arch/arm/mach-davinci/board-evm.c131
-rw-r--r--arch/arm/mach-davinci/id.c94
-rw-r--r--arch/arm/mach-davinci/io.c51
-rw-r--r--arch/arm/mach-davinci/irq.c226
-rw-r--r--arch/arm/mach-davinci/psc.c113
-rw-r--r--arch/arm/mach-davinci/serial.c96
-rw-r--r--arch/arm/mach-davinci/time.c372
-rw-r--r--arch/arm/mm/Kconfig4
-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
27 files changed, 1674 insertions, 3 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index d7c0984d4a86..34d1462e4341 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -384,6 +384,13 @@ config ARCH_OMAP
384 help 384 help
385 Support for TI's OMAP platform (OMAP1 and OMAP2). 385 Support for TI's OMAP platform (OMAP1 and OMAP2).
386 386
387config ARCH_DAVINCI
388 bool "TI DaVinci"
389 select GENERIC_TIME
390 select GENERIC_CLOCKEVENTS
391 help
392 Support for TI's DaVinci platform.
393
387endchoice 394endchoice
388 395
389source "arch/arm/mach-clps711x/Kconfig" 396source "arch/arm/mach-clps711x/Kconfig"
@@ -445,6 +452,8 @@ source "arch/arm/mach-netx/Kconfig"
445 452
446source "arch/arm/mach-ns9xxx/Kconfig" 453source "arch/arm/mach-ns9xxx/Kconfig"
447 454
455source "arch/arm/mach-davinci/Kconfig"
456
448# Definitions to make life easier 457# Definitions to make life easier
449config ARCH_ACORN 458config ARCH_ACORN
450 bool 459 bool
@@ -674,7 +683,7 @@ config LEDS
674 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \ 683 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
675 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \ 684 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
676 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \ 685 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
677 ARCH_AT91 || MACH_TRIZEPS4 686 ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI
678 help 687 help
679 If you say Y here, the LEDs on your machine will be used 688 If you say Y here, the LEDs on your machine will be used
680 to provide useful information about your current system status. 689 to provide useful information about your current system status.
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 00ea4305ad5d..d568d86b0729 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -135,6 +135,7 @@ endif
135 machine-$(CONFIG_ARCH_NETX) := netx 135 machine-$(CONFIG_ARCH_NETX) := netx
136 machine-$(CONFIG_ARCH_NS9XXX) := ns9xxx 136 machine-$(CONFIG_ARCH_NS9XXX) := ns9xxx
137 textofs-$(CONFIG_ARCH_NS9XXX) := 0x00108000 137 textofs-$(CONFIG_ARCH_NS9XXX) := 0x00108000
138 machine-$(CONFIG_ARCH_DAVINCI) := davinci
138 139
139ifeq ($(CONFIG_ARCH_EBSA110),y) 140ifeq ($(CONFIG_ARCH_EBSA110),y)
140# This is what happens if you forget the IOCS16 line. 141# This is what happens if you forget the IOCS16 line.
diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
new file mode 100644
index 000000000000..bac988e7a4c3
--- /dev/null
+++ b/arch/arm/mach-davinci/Kconfig
@@ -0,0 +1,23 @@
1if ARCH_DAVINCI
2
3menu "TI DaVinci Implementations"
4
5comment "DaVinci Core Type"
6
7config ARCH_DAVINCI644x
8 default y
9 bool "DaVinci 644x based system"
10
11comment "DaVinci Board Type"
12
13config MACH_DAVINCI_EVM
14 bool "TI DaVinci EVM"
15 default y
16 depends on ARCH_DAVINCI644x
17 help
18 Configure this option to specify the whether the board used
19 for development is a DaVinci EVM
20
21endmenu
22
23endif
diff --git a/arch/arm/mach-davinci/Makefile b/arch/arm/mach-davinci/Makefile
new file mode 100644
index 000000000000..a8f88cd29905
--- /dev/null
+++ b/arch/arm/mach-davinci/Makefile
@@ -0,0 +1,10 @@
1#
2# Makefile for the linux kernel.
3#
4#
5
6# Common objects
7obj-y := time.o irq.o serial.o io.o id.o psc.o
8
9# Board specific
10obj-$(CONFIG_MACH_DAVINCI_EVM) += board-evm.o
diff --git a/arch/arm/mach-davinci/Makefile.boot b/arch/arm/mach-davinci/Makefile.boot
new file mode 100644
index 000000000000..e1dd366f836b
--- /dev/null
+++ b/arch/arm/mach-davinci/Makefile.boot
@@ -0,0 +1,3 @@
1 zreladdr-y := 0x80008000
2params_phys-y := 0x80000100
3initrd_phys-y := 0x80800000
diff --git a/arch/arm/mach-davinci/board-evm.c b/arch/arm/mach-davinci/board-evm.c
new file mode 100644
index 000000000000..633c12e43044
--- /dev/null
+++ b/arch/arm/mach-davinci/board-evm.c
@@ -0,0 +1,131 @@
1/*
2 * TI DaVinci EVM board support
3 *
4 * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
5 *
6 * 2007 (c) MontaVista Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
9 * or implied.
10 */
11#include <linux/kernel.h>
12#include <linux/module.h>
13#include <linux/init.h>
14#include <linux/dma-mapping.h>
15#include <linux/platform_device.h>
16#include <linux/mtd/mtd.h>
17#include <linux/mtd/partitions.h>
18#include <linux/mtd/physmap.h>
19
20#include <asm/setup.h>
21#include <asm/io.h>
22#include <asm/mach-types.h>
23#include <asm/hardware.h>
24
25#include <asm/mach/arch.h>
26#include <asm/mach/map.h>
27#include <asm/mach/flash.h>
28
29#include <asm/arch/common.h>
30
31/* other misc. init functions */
32void __init davinci_psc_init(void);
33void __init davinci_irq_init(void);
34void __init davinci_map_common_io(void);
35
36/* NOR Flash base address set to CS0 by default */
37#define NOR_FLASH_PHYS 0x02000000
38
39static struct mtd_partition davinci_evm_partitions[] = {
40 /* bootloader (U-Boot, etc) in first 4 sectors */
41 {
42 .name = "bootloader",
43 .offset = 0,
44 .size = 4 * SZ_64K,
45 .mask_flags = MTD_WRITEABLE, /* force read-only */
46 },
47 /* bootloader params in the next 1 sectors */
48 {
49 .name = "params",
50 .offset = MTDPART_OFS_APPEND,
51 .size = SZ_64K,
52 .mask_flags = 0,
53 },
54 /* kernel */
55 {
56 .name = "kernel",
57 .offset = MTDPART_OFS_APPEND,
58 .size = SZ_2M,
59 .mask_flags = 0
60 },
61 /* file system */
62 {
63 .name = "filesystem",
64 .offset = MTDPART_OFS_APPEND,
65 .size = MTDPART_SIZ_FULL,
66 .mask_flags = 0
67 }
68};
69
70static struct physmap_flash_data davinci_evm_flash_data = {
71 .width = 2,
72 .parts = davinci_evm_partitions,
73 .nr_parts = ARRAY_SIZE(davinci_evm_partitions),
74};
75
76/* NOTE: CFI probe will correctly detect flash part as 32M, but EMIF
77 * limits addresses to 16M, so using addresses past 16M will wrap */
78static struct resource davinci_evm_flash_resource = {
79 .start = NOR_FLASH_PHYS,
80 .end = NOR_FLASH_PHYS + SZ_16M - 1,
81 .flags = IORESOURCE_MEM,
82};
83
84static struct platform_device davinci_evm_flash_device = {
85 .name = "physmap-flash",
86 .id = 0,
87 .dev = {
88 .platform_data = &davinci_evm_flash_data,
89 },
90 .num_resources = 1,
91 .resource = &davinci_evm_flash_resource,
92};
93
94static struct platform_device *davinci_evm_devices[] __initdata = {
95 &davinci_evm_flash_device,
96};
97
98static void __init
99davinci_evm_map_io(void)
100{
101 davinci_map_common_io();
102}
103
104static __init void davinci_evm_init(void)
105{
106 davinci_psc_init();
107
108#if defined(CONFIG_BLK_DEV_DAVINCI) || defined(CONFIG_BLK_DEV_DAVINCI_MODULE)
109 printk(KERN_WARNING "WARNING: both IDE and NOR flash are enabled, "
110 "but share pins.\n\t Disable IDE for NOR support.\n");
111#endif
112
113 platform_add_devices(davinci_evm_devices,
114 ARRAY_SIZE(davinci_evm_devices));
115}
116
117static __init void davinci_evm_irq_init(void)
118{
119 davinci_irq_init();
120}
121
122MACHINE_START(DAVINCI_EVM, "DaVinci EVM")
123 /* Maintainer: MontaVista Software <source@mvista.com> */
124 .phys_io = IO_PHYS,
125 .io_pg_offst = (io_p2v(IO_PHYS) >> 18) & 0xfffc,
126 .boot_params = (DAVINCI_DDR_BASE + 0x100),
127 .map_io = davinci_evm_map_io,
128 .init_irq = davinci_evm_irq_init,
129 .timer = &davinci_timer,
130 .init_machine = davinci_evm_init,
131MACHINE_END
diff --git a/arch/arm/mach-davinci/id.c b/arch/arm/mach-davinci/id.c
new file mode 100644
index 000000000000..70608f76aed8
--- /dev/null
+++ b/arch/arm/mach-davinci/id.c
@@ -0,0 +1,94 @@
1/*
2 * Davinci CPU identification code
3 *
4 * Copyright (C) 2006 Komal Shah <komal_shah802003@yahoo.com>
5 *
6 * Derived from OMAP1 CPU identification code.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#include <linux/module.h>
14#include <linux/kernel.h>
15#include <linux/init.h>
16
17#include <asm/io.h>
18
19#define JTAG_ID_BASE 0x01c40028
20
21struct davinci_id {
22 u8 variant; /* JTAG ID bits 31:28 */
23 u16 part_no; /* JTAG ID bits 27:12 */
24 u32 manufacturer; /* JTAG ID bits 11:1 */
25 u32 type; /* Cpu id bits [31:8], cpu class bits [7:0] */
26};
27
28/* Register values to detect the DaVinci version */
29static struct davinci_id davinci_ids[] __initdata = {
30 {
31 /* DM6446 */
32 .part_no = 0xb700,
33 .variant = 0x0,
34 .manufacturer = 0x017,
35 .type = 0x64460000,
36 },
37};
38
39/*
40 * Get Device Part No. from JTAG ID register
41 */
42static u16 __init davinci_get_part_no(void)
43{
44 u32 dev_id, part_no;
45
46 dev_id = davinci_readl(JTAG_ID_BASE);
47
48 part_no = ((dev_id >> 12) & 0xffff);
49
50 return part_no;
51}
52
53/*
54 * Get Device Revision from JTAG ID register
55 */
56static u8 __init davinci_get_variant(void)
57{
58 u32 variant;
59
60 variant = davinci_readl(JTAG_ID_BASE);
61
62 variant = (variant >> 28) & 0xf;
63
64 return variant;
65}
66
67void __init davinci_check_revision(void)
68{
69 int i;
70 u16 part_no;
71 u8 variant;
72
73 part_no = davinci_get_part_no();
74 variant = davinci_get_variant();
75
76 /* First check only the major version in a safe way */
77 for (i = 0; i < ARRAY_SIZE(davinci_ids); i++) {
78 if (part_no == (davinci_ids[i].part_no)) {
79 system_rev = davinci_ids[i].type;
80 break;
81 }
82 }
83
84 /* Check if we can find the dev revision */
85 for (i = 0; i < ARRAY_SIZE(davinci_ids); i++) {
86 if (part_no == davinci_ids[i].part_no &&
87 variant == davinci_ids[i].variant) {
88 system_rev = davinci_ids[i].type;
89 break;
90 }
91 }
92
93 printk("DaVinci DM%04x variant 0x%x\n", system_rev >> 16, variant);
94}
diff --git a/arch/arm/mach-davinci/io.c b/arch/arm/mach-davinci/io.c
new file mode 100644
index 000000000000..87fae6fb6ecf
--- /dev/null
+++ b/arch/arm/mach-davinci/io.c
@@ -0,0 +1,51 @@
1/*
2 * DaVinci I/O mapping code
3 *
4 * Copyright (C) 2005-2006 Texas Instruments
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11#include <linux/module.h>
12#include <linux/kernel.h>
13#include <linux/init.h>
14
15#include <asm/tlb.h>
16#include <asm/io.h>
17#include <asm/memory.h>
18
19#include <asm/mach/map.h>
20
21extern void davinci_check_revision(void);
22
23/*
24 * The machine specific code may provide the extra mapping besides the
25 * default mapping provided here.
26 */
27static struct map_desc davinci_io_desc[] __initdata = {
28 {
29 .virtual = IO_VIRT,
30 .pfn = __phys_to_pfn(IO_PHYS),
31 .length = IO_SIZE,
32 .type = MT_DEVICE
33 },
34};
35
36void __init davinci_map_common_io(void)
37{
38 iotable_init(davinci_io_desc, ARRAY_SIZE(davinci_io_desc));
39
40 /* Normally devicemaps_init() would flush caches and tlb after
41 * mdesc->map_io(), but we must also do it here because of the CPU
42 * revision check below.
43 */
44 local_flush_tlb_all();
45 flush_cache_all();
46
47 /* We want to check CPU revision early for cpu_is_xxxx() macros.
48 * IO space mapping must be initialized before we can do that.
49 */
50 davinci_check_revision();
51}
diff --git a/arch/arm/mach-davinci/irq.c b/arch/arm/mach-davinci/irq.c
new file mode 100644
index 000000000000..1333d84d2e45
--- /dev/null
+++ b/arch/arm/mach-davinci/irq.c
@@ -0,0 +1,226 @@
1/*
2 * Interrupt handler for DaVinci boards.
3 *
4 * Copyright (C) 2006 Texas Instruments.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 *
20 */
21#include <linux/kernel.h>
22#include <linux/init.h>
23#include <linux/interrupt.h>
24#include <linux/irq.h>
25
26#include <asm/hardware.h>
27#include <asm/io.h>
28#include <asm/mach/irq.h>
29
30#define IRQ_BIT(irq) ((irq) & 0x1f)
31
32#define FIQ_REG0_OFFSET 0x0000
33#define FIQ_REG1_OFFSET 0x0004
34#define IRQ_REG0_OFFSET 0x0008
35#define IRQ_REG1_OFFSET 0x000C
36#define IRQ_ENT_REG0_OFFSET 0x0018
37#define IRQ_ENT_REG1_OFFSET 0x001C
38#define IRQ_INCTL_REG_OFFSET 0x0020
39#define IRQ_EABASE_REG_OFFSET 0x0024
40#define IRQ_INTPRI0_REG_OFFSET 0x0030
41#define IRQ_INTPRI7_REG_OFFSET 0x004C
42
43static inline unsigned int davinci_irq_readl(int offset)
44{
45 return davinci_readl(DAVINCI_ARM_INTC_BASE + offset);
46}
47
48static inline void davinci_irq_writel(unsigned long value, int offset)
49{
50 davinci_writel(value, DAVINCI_ARM_INTC_BASE + offset);
51}
52
53/* Disable interrupt */
54static void davinci_mask_irq(unsigned int irq)
55{
56 unsigned int mask;
57 u32 l;
58
59 mask = 1 << IRQ_BIT(irq);
60
61 if (irq > 31) {
62 l = davinci_irq_readl(IRQ_ENT_REG1_OFFSET);
63 l &= ~mask;
64 davinci_irq_writel(l, IRQ_ENT_REG1_OFFSET);
65 } else {
66 l = davinci_irq_readl(IRQ_ENT_REG0_OFFSET);
67 l &= ~mask;
68 davinci_irq_writel(l, IRQ_ENT_REG0_OFFSET);
69 }
70}
71
72/* Enable interrupt */
73static void davinci_unmask_irq(unsigned int irq)
74{
75 unsigned int mask;
76 u32 l;
77
78 mask = 1 << IRQ_BIT(irq);
79
80 if (irq > 31) {
81 l = davinci_irq_readl(IRQ_ENT_REG1_OFFSET);
82 l |= mask;
83 davinci_irq_writel(l, IRQ_ENT_REG1_OFFSET);
84 } else {
85 l = davinci_irq_readl(IRQ_ENT_REG0_OFFSET);
86 l |= mask;
87 davinci_irq_writel(l, IRQ_ENT_REG0_OFFSET);
88 }
89}
90
91/* EOI interrupt */
92static void davinci_ack_irq(unsigned int irq)
93{
94 unsigned int mask;
95
96 mask = 1 << IRQ_BIT(irq);
97
98 if (irq > 31)
99 davinci_irq_writel(mask, IRQ_REG1_OFFSET);
100 else
101 davinci_irq_writel(mask, IRQ_REG0_OFFSET);
102}
103
104static struct irq_chip davinci_irq_chip_0 = {
105 .name = "AINTC",
106 .ack = davinci_ack_irq,
107 .mask = davinci_mask_irq,
108 .unmask = davinci_unmask_irq,
109};
110
111
112/* FIQ are pri 0-1; otherwise 2-7, with 7 lowest priority */
113static const u8 default_priorities[DAVINCI_N_AINTC_IRQ] __initdata = {
114 [IRQ_VDINT0] = 2,
115 [IRQ_VDINT1] = 6,
116 [IRQ_VDINT2] = 6,
117 [IRQ_HISTINT] = 6,
118 [IRQ_H3AINT] = 6,
119 [IRQ_PRVUINT] = 6,
120 [IRQ_RSZINT] = 6,
121 [7] = 7,
122 [IRQ_VENCINT] = 6,
123 [IRQ_ASQINT] = 6,
124 [IRQ_IMXINT] = 6,
125 [IRQ_VLCDINT] = 6,
126 [IRQ_USBINT] = 4,
127 [IRQ_EMACINT] = 4,
128 [14] = 7,
129 [15] = 7,
130 [IRQ_CCINT0] = 5, /* dma */
131 [IRQ_CCERRINT] = 5, /* dma */
132 [IRQ_TCERRINT0] = 5, /* dma */
133 [IRQ_TCERRINT] = 5, /* dma */
134 [IRQ_PSCIN] = 7,
135 [21] = 7,
136 [IRQ_IDE] = 4,
137 [23] = 7,
138 [IRQ_MBXINT] = 7,
139 [IRQ_MBRINT] = 7,
140 [IRQ_MMCINT] = 7,
141 [IRQ_SDIOINT] = 7,
142 [28] = 7,
143 [IRQ_DDRINT] = 7,
144 [IRQ_AEMIFINT] = 7,
145 [IRQ_VLQINT] = 4,
146 [IRQ_TINT0_TINT12] = 2, /* clockevent */
147 [IRQ_TINT0_TINT34] = 2, /* clocksource */
148 [IRQ_TINT1_TINT12] = 7, /* DSP timer */
149 [IRQ_TINT1_TINT34] = 7, /* system tick */
150 [IRQ_PWMINT0] = 7,
151 [IRQ_PWMINT1] = 7,
152 [IRQ_PWMINT2] = 7,
153 [IRQ_I2C] = 3,
154 [IRQ_UARTINT0] = 3,
155 [IRQ_UARTINT1] = 3,
156 [IRQ_UARTINT2] = 3,
157 [IRQ_SPINT0] = 3,
158 [IRQ_SPINT1] = 3,
159 [45] = 7,
160 [IRQ_DSP2ARM0] = 4,
161 [IRQ_DSP2ARM1] = 4,
162 [IRQ_GPIO0] = 7,
163 [IRQ_GPIO1] = 7,
164 [IRQ_GPIO2] = 7,
165 [IRQ_GPIO3] = 7,
166 [IRQ_GPIO4] = 7,
167 [IRQ_GPIO5] = 7,
168 [IRQ_GPIO6] = 7,
169 [IRQ_GPIO7] = 7,
170 [IRQ_GPIOBNK0] = 7,
171 [IRQ_GPIOBNK1] = 7,
172 [IRQ_GPIOBNK2] = 7,
173 [IRQ_GPIOBNK3] = 7,
174 [IRQ_GPIOBNK4] = 7,
175 [IRQ_COMMTX] = 7,
176 [IRQ_COMMRX] = 7,
177 [IRQ_EMUINT] = 7,
178};
179
180/* ARM Interrupt Controller Initialization */
181void __init davinci_irq_init(void)
182{
183 unsigned i;
184 const u8 *priority = default_priorities;
185
186 /* Clear all interrupt requests */
187 davinci_irq_writel(~0x0, FIQ_REG0_OFFSET);
188 davinci_irq_writel(~0x0, FIQ_REG1_OFFSET);
189 davinci_irq_writel(~0x0, IRQ_REG0_OFFSET);
190 davinci_irq_writel(~0x0, IRQ_REG1_OFFSET);
191
192 /* Disable all interrupts */
193 davinci_irq_writel(0x0, IRQ_ENT_REG0_OFFSET);
194 davinci_irq_writel(0x0, IRQ_ENT_REG1_OFFSET);
195
196 /* Interrupts disabled immediately, IRQ entry reflects all */
197 davinci_irq_writel(0x0, IRQ_INCTL_REG_OFFSET);
198
199 /* we don't use the hardware vector table, just its entry addresses */
200 davinci_irq_writel(0, IRQ_EABASE_REG_OFFSET);
201
202 /* Clear all interrupt requests */
203 davinci_irq_writel(~0x0, FIQ_REG0_OFFSET);
204 davinci_irq_writel(~0x0, FIQ_REG1_OFFSET);
205 davinci_irq_writel(~0x0, IRQ_REG0_OFFSET);
206 davinci_irq_writel(~0x0, IRQ_REG1_OFFSET);
207
208 for (i = IRQ_INTPRI0_REG_OFFSET; i <= IRQ_INTPRI7_REG_OFFSET; i += 4) {
209 unsigned j;
210 u32 pri;
211
212 for (j = 0, pri = 0; j < 32; j += 4, priority++)
213 pri |= (*priority & 0x07) << j;
214 davinci_irq_writel(pri, i);
215 }
216
217 /* set up genirq dispatch for ARM INTC */
218 for (i = 0; i < DAVINCI_N_AINTC_IRQ; i++) {
219 set_irq_chip(i, &davinci_irq_chip_0);
220 set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
221 if (i != IRQ_TINT1_TINT34)
222 set_irq_handler(i, handle_edge_irq);
223 else
224 set_irq_handler(i, handle_level_irq);
225 }
226}
diff --git a/arch/arm/mach-davinci/psc.c b/arch/arm/mach-davinci/psc.c
new file mode 100644
index 000000000000..e1b0050283a6
--- /dev/null
+++ b/arch/arm/mach-davinci/psc.c
@@ -0,0 +1,113 @@
1/*
2 * TI DaVinci Power and Sleep Controller (PSC)
3 *
4 * Copyright (C) 2006 Texas Instruments.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 *
20 */
21#include <linux/kernel.h>
22#include <linux/module.h>
23#include <linux/init.h>
24
25#include <asm/io.h>
26#include <asm/hardware.h>
27#include <asm/arch/psc.h>
28
29#define PTCMD __REG(0x01C41120)
30#define PDSTAT __REG(0x01C41200)
31#define PDCTL1 __REG(0x01C41304)
32#define EPCPR __REG(0x01C41070)
33#define PTSTAT __REG(0x01C41128)
34
35#define MDSTAT IO_ADDRESS(0x01C41800)
36#define MDCTL IO_ADDRESS(0x01C41A00)
37
38#define PINMUX0 __REG(0x01c40000)
39#define PINMUX1 __REG(0x01c40004)
40#define VDD3P3V_PWDN __REG(0x01C40048)
41
42static void davinci_psc_mux(unsigned int id)
43{
44 switch (id) {
45 case DAVINCI_LPSC_ATA:
46 PINMUX0 |= (1 << 17) | (1 << 16);
47 break;
48 case DAVINCI_LPSC_MMC_SD:
49 /* VDD power manupulations are done in U-Boot for CPMAC
50 * so applies to MMC as well
51 */
52 /*Set up the pull regiter for MMC */
53 VDD3P3V_PWDN = 0x0;
54 PINMUX1 &= (~(1 << 9));
55 break;
56 case DAVINCI_LPSC_I2C:
57 PINMUX1 |= (1 << 7);
58 break;
59 case DAVINCI_LPSC_McBSP:
60 PINMUX1 |= (1 << 10);
61 break;
62 default:
63 break;
64 }
65}
66
67/* Enable or disable a PSC domain */
68void davinci_psc_config(unsigned int domain, unsigned int id, char enable)
69{
70 volatile unsigned int *mdstat = (unsigned int *)((int)MDSTAT + 4 * id);
71 volatile unsigned int *mdctl = (unsigned int *)((int)MDCTL + 4 * id);
72
73 if (id < 0)
74 return;
75
76 if (enable)
77 *mdctl |= 0x00000003; /* Enable Module */
78 else
79 *mdctl &= 0xFFFFFFF2; /* Disable Module */
80
81 if ((PDSTAT & 0x00000001) == 0) {
82 PDCTL1 |= 0x1;
83 PTCMD = (1 << domain);
84 while ((((EPCPR >> domain) & 1) == 0));
85
86 PDCTL1 |= 0x100;
87 while (!(((PTSTAT >> domain) & 1) == 0));
88 } else {
89 PTCMD = (1 << domain);
90 while (!(((PTSTAT >> domain) & 1) == 0));
91 }
92
93 if (enable)
94 while (!((*mdstat & 0x0000001F) == 0x3));
95 else
96 while (!((*mdstat & 0x0000001F) == 0x2));
97
98 if (enable)
99 davinci_psc_mux(id);
100}
101
102void __init davinci_psc_init(void)
103{
104 davinci_psc_config(DAVINCI_GPSC_ARMDOMAIN, DAVINCI_LPSC_VPSSMSTR, 1);
105 davinci_psc_config(DAVINCI_GPSC_ARMDOMAIN, DAVINCI_LPSC_VPSSSLV, 1);
106 davinci_psc_config(DAVINCI_GPSC_ARMDOMAIN, DAVINCI_LPSC_TPCC, 1);
107 davinci_psc_config(DAVINCI_GPSC_ARMDOMAIN, DAVINCI_LPSC_TPTC0, 1);
108 davinci_psc_config(DAVINCI_GPSC_ARMDOMAIN, DAVINCI_LPSC_TPTC1, 1);
109 davinci_psc_config(DAVINCI_GPSC_ARMDOMAIN, DAVINCI_LPSC_GPIO, 1);
110
111 /* Turn on WatchDog timer LPSC. Needed for RESET to work */
112 davinci_psc_config(DAVINCI_GPSC_ARMDOMAIN, DAVINCI_LPSC_TIMER2, 1);
113}
diff --git a/arch/arm/mach-davinci/serial.c b/arch/arm/mach-davinci/serial.c
new file mode 100644
index 000000000000..8368c93c788d
--- /dev/null
+++ b/arch/arm/mach-davinci/serial.c
@@ -0,0 +1,96 @@
1/*
2 * TI DaVinci serial driver
3 *
4 * Copyright (C) 2006 Texas Instruments.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 *
20 */
21
22#include <linux/kernel.h>
23#include <linux/init.h>
24#include <linux/serial_8250.h>
25#include <linux/serial_reg.h>
26#include <linux/platform_device.h>
27#include <linux/delay.h>
28#include <linux/clk.h>
29
30#include <asm/io.h>
31#include <asm/irq.h>
32#include <asm/hardware.h>
33#include <asm/arch/serial.h>
34#include <asm/arch/irqs.h>
35
36#define UART_DAVINCI_PWREMU 0x0c
37
38static inline unsigned int davinci_serial_in(struct plat_serial8250_port *up,
39 int offset)
40{
41 offset <<= up->regshift;
42 return (unsigned int)__raw_readb(up->membase + offset);
43}
44
45static inline void davinci_serial_outp(struct plat_serial8250_port *p,
46 int offset, int value)
47{
48 offset <<= p->regshift;
49 __raw_writeb(value, p->membase + offset);
50}
51
52static struct plat_serial8250_port serial_platform_data[] = {
53 {
54 .membase = (char *)IO_ADDRESS(DAVINCI_UART0_BASE),
55 .mapbase = (unsigned long)DAVINCI_UART0_BASE,
56 .irq = IRQ_UARTINT0,
57 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
58 .iotype = UPIO_MEM,
59 .regshift = 2,
60 .uartclk = 27000000,
61 },
62 {
63 .flags = 0
64 },
65};
66
67static struct platform_device serial_device = {
68 .name = "serial8250",
69 .id = PLAT8250_DEV_PLATFORM,
70 .dev = {
71 .platform_data = serial_platform_data,
72 },
73};
74
75static void __init davinci_serial_reset(struct plat_serial8250_port *p)
76{
77 /* reset both transmitter and receiver: bits 14,13 = UTRST, URRST */
78 unsigned int pwremu = 0;
79
80 davinci_serial_outp(p, UART_IER, 0); /* disable all interrupts */
81
82 davinci_serial_outp(p, UART_DAVINCI_PWREMU, pwremu);
83 mdelay(10);
84
85 pwremu |= (0x3 << 13);
86 pwremu |= 0x1;
87 davinci_serial_outp(p, UART_DAVINCI_PWREMU, pwremu);
88}
89
90static int __init davinci_init(void)
91{
92 davinci_serial_reset(&serial_platform_data[0]);
93 return platform_device_register(&serial_device);
94}
95
96arch_initcall(davinci_init);
diff --git a/arch/arm/mach-davinci/time.c b/arch/arm/mach-davinci/time.c
new file mode 100644
index 000000000000..4d8425de6922
--- /dev/null
+++ b/arch/arm/mach-davinci/time.c
@@ -0,0 +1,372 @@
1/*
2 * DaVinci timer subsystem
3 *
4 * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
5 *
6 * 2007 (c) MontaVista Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
9 * or implied.
10 */
11#include <linux/kernel.h>
12#include <linux/init.h>
13#include <linux/types.h>
14#include <linux/interrupt.h>
15#include <linux/clocksource.h>
16#include <linux/clockchips.h>
17#include <linux/spinlock.h>
18
19#include <asm/io.h>
20#include <asm/hardware.h>
21#include <asm/system.h>
22#include <asm/irq.h>
23#include <asm/mach/irq.h>
24#include <asm/mach/time.h>
25#include <asm/errno.h>
26#include <asm/arch/io.h>
27
28static struct clock_event_device clockevent_davinci;
29
30#define DAVINCI_TIMER0_BASE (IO_PHYS + 0x21400)
31#define DAVINCI_TIMER1_BASE (IO_PHYS + 0x21800)
32#define DAVINCI_WDOG_BASE (IO_PHYS + 0x21C00)
33
34enum {
35 T0_BOT = 0, T0_TOP, T1_BOT, T1_TOP, NUM_TIMERS,
36};
37
38#define IS_TIMER1(id) (id & 0x2)
39#define IS_TIMER0(id) (!IS_TIMER1(id))
40#define IS_TIMER_TOP(id) ((id & 0x1))
41#define IS_TIMER_BOT(id) (!IS_TIMER_TOP(id))
42
43static int timer_irqs[NUM_TIMERS] = {
44 IRQ_TINT0_TINT12,
45 IRQ_TINT0_TINT34,
46 IRQ_TINT1_TINT12,
47 IRQ_TINT1_TINT34,
48};
49
50/*
51 * This driver configures the 2 64-bit count-up timers as 4 independent
52 * 32-bit count-up timers used as follows:
53 *
54 * T0_BOT: Timer 0, bottom: clockevent source for hrtimers
55 * T0_TOP: Timer 0, top : clocksource for generic timekeeping
56 * T1_BOT: Timer 1, bottom: (used by DSP in TI DSPLink code)
57 * T1_TOP: Timer 1, top : <unused>
58 */
59#define TID_CLOCKEVENT T0_BOT
60#define TID_CLOCKSOURCE T0_TOP
61
62/* Timer register offsets */
63#define PID12 0x0
64#define TIM12 0x10
65#define TIM34 0x14
66#define PRD12 0x18
67#define PRD34 0x1c
68#define TCR 0x20
69#define TGCR 0x24
70#define WDTCR 0x28
71
72/* Timer register bitfields */
73#define TCR_ENAMODE_DISABLE 0x0
74#define TCR_ENAMODE_ONESHOT 0x1
75#define TCR_ENAMODE_PERIODIC 0x2
76#define TCR_ENAMODE_MASK 0x3
77
78#define TGCR_TIMMODE_SHIFT 2
79#define TGCR_TIMMODE_64BIT_GP 0x0
80#define TGCR_TIMMODE_32BIT_UNCHAINED 0x1
81#define TGCR_TIMMODE_64BIT_WDOG 0x2
82#define TGCR_TIMMODE_32BIT_CHAINED 0x3
83
84#define TGCR_TIM12RS_SHIFT 0
85#define TGCR_TIM34RS_SHIFT 1
86#define TGCR_RESET 0x0
87#define TGCR_UNRESET 0x1
88#define TGCR_RESET_MASK 0x3
89
90#define WDTCR_WDEN_SHIFT 14
91#define WDTCR_WDEN_DISABLE 0x0
92#define WDTCR_WDEN_ENABLE 0x1
93#define WDTCR_WDKEY_SHIFT 16
94#define WDTCR_WDKEY_SEQ0 0xa5c6
95#define WDTCR_WDKEY_SEQ1 0xda7e
96
97struct timer_s {
98 char *name;
99 unsigned int id;
100 unsigned long period;
101 unsigned long opts;
102 unsigned long reg_base;
103 unsigned long tim_reg;
104 unsigned long prd_reg;
105 unsigned long enamode_shift;
106 struct irqaction irqaction;
107};
108static struct timer_s timers[];
109
110/* values for 'opts' field of struct timer_s */
111#define TIMER_OPTS_DISABLED 0x00
112#define TIMER_OPTS_ONESHOT 0x01
113#define TIMER_OPTS_PERIODIC 0x02
114
115static int timer32_config(struct timer_s *t)
116{
117 u32 tcr = davinci_readl(t->reg_base + TCR);
118
119 /* disable timer */
120 tcr &= ~(TCR_ENAMODE_MASK << t->enamode_shift);
121 davinci_writel(tcr, t->reg_base + TCR);
122
123 /* reset counter to zero, set new period */
124 davinci_writel(0, t->tim_reg);
125 davinci_writel(t->period, t->prd_reg);
126
127 /* Set enable mode */
128 if (t->opts & TIMER_OPTS_ONESHOT) {
129 tcr |= TCR_ENAMODE_ONESHOT << t->enamode_shift;
130 } else if (t->opts & TIMER_OPTS_PERIODIC) {
131 tcr |= TCR_ENAMODE_PERIODIC << t->enamode_shift;
132 }
133
134 davinci_writel(tcr, t->reg_base + TCR);
135 return 0;
136}
137
138static inline u32 timer32_read(struct timer_s *t)
139{
140 return davinci_readl(t->tim_reg);
141}
142
143static irqreturn_t timer_interrupt(int irq, void *dev_id)
144{
145 struct clock_event_device *evt = &clockevent_davinci;
146
147 evt->event_handler(evt);
148 return IRQ_HANDLED;
149}
150
151/* called when 32-bit counter wraps */
152static irqreturn_t freerun_interrupt(int irq, void *dev_id)
153{
154 return IRQ_HANDLED;
155}
156
157static struct timer_s timers[] = {
158 [TID_CLOCKEVENT] = {
159 .name = "clockevent",
160 .opts = TIMER_OPTS_DISABLED,
161 .irqaction = {
162 .flags = IRQF_DISABLED | IRQF_TIMER,
163 .handler = timer_interrupt,
164 }
165 },
166 [TID_CLOCKSOURCE] = {
167 .name = "free-run counter",
168 .period = ~0,
169 .opts = TIMER_OPTS_PERIODIC,
170 .irqaction = {
171 .flags = IRQF_DISABLED | IRQF_TIMER,
172 .handler = freerun_interrupt,
173 }
174 },
175};
176
177static void __init timer_init(void)
178{
179 u32 bases[] = {DAVINCI_TIMER0_BASE, DAVINCI_TIMER1_BASE};
180 int i;
181
182 /* Global init of each 64-bit timer as a whole */
183 for(i=0; i<2; i++) {
184 u32 tgcr, base = bases[i];
185
186 /* Disabled, Internal clock source */
187 davinci_writel(0, base + TCR);
188
189 /* reset both timers, no pre-scaler for timer34 */
190 tgcr = 0;
191 davinci_writel(tgcr, base + TGCR);
192
193 /* Set both timers to unchained 32-bit */
194 tgcr = TGCR_TIMMODE_32BIT_UNCHAINED << TGCR_TIMMODE_SHIFT;
195 davinci_writel(tgcr, base + TGCR);
196
197 /* Unreset timers */
198 tgcr |= (TGCR_UNRESET << TGCR_TIM12RS_SHIFT) |
199 (TGCR_UNRESET << TGCR_TIM34RS_SHIFT);
200 davinci_writel(tgcr, base + TGCR);
201
202 /* Init both counters to zero */
203 davinci_writel(0, base + TIM12);
204 davinci_writel(0, base + TIM34);
205 }
206
207 /* Init of each timer as a 32-bit timer */
208 for (i=0; i< ARRAY_SIZE(timers); i++) {
209 struct timer_s *t = &timers[i];
210
211 if (t->name) {
212 t->id = i;
213 t->reg_base = (IS_TIMER1(t->id) ?
214 DAVINCI_TIMER1_BASE : DAVINCI_TIMER0_BASE);
215
216 if (IS_TIMER_BOT(t->id)) {
217 t->enamode_shift = 6;
218 t->tim_reg = t->reg_base + TIM12;
219 t->prd_reg = t->reg_base + PRD12;
220 } else {
221 t->enamode_shift = 22;
222 t->tim_reg = t->reg_base + TIM34;
223 t->prd_reg = t->reg_base + PRD34;
224 }
225
226 /* Register interrupt */
227 t->irqaction.name = t->name;
228 t->irqaction.dev_id = (void *)t;
229 if (t->irqaction.handler != NULL) {
230 setup_irq(timer_irqs[t->id], &t->irqaction);
231 }
232
233 timer32_config(&timers[i]);
234 }
235 }
236}
237
238/*
239 * clocksource
240 */
241static cycle_t read_cycles(void)
242{
243 struct timer_s *t = &timers[TID_CLOCKSOURCE];
244
245 return (cycles_t)timer32_read(t);
246}
247
248static struct clocksource clocksource_davinci = {
249 .name = "timer0_1",
250 .rating = 300,
251 .read = read_cycles,
252 .mask = CLOCKSOURCE_MASK(32),
253 .shift = 24,
254 .flags = CLOCK_SOURCE_IS_CONTINUOUS,
255};
256
257/*
258 * clockevent
259 */
260static int davinci_set_next_event(unsigned long cycles,
261 struct clock_event_device *evt)
262{
263 struct timer_s *t = &timers[TID_CLOCKEVENT];
264
265 t->period = cycles;
266 timer32_config(t);
267 return 0;
268}
269
270static void davinci_set_mode(enum clock_event_mode mode,
271 struct clock_event_device *evt)
272{
273 struct timer_s *t = &timers[TID_CLOCKEVENT];
274
275 switch (mode) {
276 case CLOCK_EVT_MODE_PERIODIC:
277 t->period = CLOCK_TICK_RATE / (HZ);
278 t->opts = TIMER_OPTS_PERIODIC;
279 timer32_config(t);
280 break;
281 case CLOCK_EVT_MODE_ONESHOT:
282 t->opts = TIMER_OPTS_ONESHOT;
283 break;
284 case CLOCK_EVT_MODE_UNUSED:
285 case CLOCK_EVT_MODE_SHUTDOWN:
286 t->opts = TIMER_OPTS_DISABLED;
287 break;
288 }
289}
290
291static struct clock_event_device clockevent_davinci = {
292 .name = "timer0_0",
293 .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
294 .shift = 32,
295 .set_next_event = davinci_set_next_event,
296 .set_mode = davinci_set_mode,
297};
298
299
300static void __init davinci_timer_init(void)
301{
302 static char err[] __initdata = KERN_ERR
303 "%s: can't register clocksource!\n";
304
305 /* init timer hw */
306 timer_init();
307
308 /* setup clocksource */
309 clocksource_davinci.mult =
310 clocksource_khz2mult(CLOCK_TICK_RATE/1000,
311 clocksource_davinci.shift);
312 if (clocksource_register(&clocksource_davinci))
313 printk(err, clocksource_davinci.name);
314
315 /* setup clockevent */
316 clockevent_davinci.mult = div_sc(CLOCK_TICK_RATE, NSEC_PER_SEC,
317 clockevent_davinci.shift);
318 clockevent_davinci.max_delta_ns =
319 clockevent_delta2ns(0xfffffffe, &clockevent_davinci);
320 clockevent_davinci.min_delta_ns =
321 clockevent_delta2ns(1, &clockevent_davinci);
322
323 clockevent_davinci.cpumask = cpumask_of_cpu(0);
324 clockevents_register_device(&clockevent_davinci);
325}
326
327struct sys_timer davinci_timer = {
328 .init = davinci_timer_init,
329};
330
331
332/* reset board using watchdog timer */
333void davinci_watchdog_reset(void) {
334 u32 tgcr, wdtcr, base = DAVINCI_WDOG_BASE;
335
336 /* disable, internal clock source */
337 davinci_writel(0, base + TCR);
338
339 /* reset timer, set mode to 64-bit watchdog, and unreset */
340 tgcr = 0;
341 davinci_writel(tgcr, base + TCR);
342 tgcr = TGCR_TIMMODE_64BIT_WDOG << TGCR_TIMMODE_SHIFT;
343 tgcr |= (TGCR_UNRESET << TGCR_TIM12RS_SHIFT) |
344 (TGCR_UNRESET << TGCR_TIM34RS_SHIFT);
345 davinci_writel(tgcr, base + TCR);
346
347 /* clear counter and period regs */
348 davinci_writel(0, base + TIM12);
349 davinci_writel(0, base + TIM34);
350 davinci_writel(0, base + PRD12);
351 davinci_writel(0, base + PRD34);
352
353 /* enable */
354 wdtcr = davinci_readl(base + WDTCR);
355 wdtcr |= WDTCR_WDEN_ENABLE << WDTCR_WDEN_SHIFT;
356 davinci_writel(wdtcr, base + WDTCR);
357
358 /* put watchdog in pre-active state */
359 wdtcr = (WDTCR_WDKEY_SEQ0 << WDTCR_WDKEY_SHIFT) |
360 (WDTCR_WDEN_ENABLE << WDTCR_WDEN_SHIFT);
361 davinci_writel(wdtcr, base + WDTCR);
362
363 /* put watchdog in active state */
364 wdtcr = (WDTCR_WDKEY_SEQ1 << WDTCR_WDKEY_SHIFT) |
365 (WDTCR_WDEN_ENABLE << WDTCR_WDEN_SHIFT);
366 davinci_writel(wdtcr, base + WDTCR);
367
368 /* write an invalid value to the WDKEY field to trigger
369 * a watchdog reset */
370 wdtcr = 0x00004000;
371 davinci_writel(wdtcr, base + WDTCR);
372}
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index b81391a4e374..2900e59395a5 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -171,8 +171,8 @@ config CPU_ARM925T
171# ARM926T 171# ARM926T
172config CPU_ARM926T 172config CPU_ARM926T
173 bool "Support ARM926T processor" 173 bool "Support ARM926T processor"
174 depends on ARCH_INTEGRATOR || ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || MACH_REALVIEW_EB || ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || ARCH_NS9XXX 174 depends on ARCH_INTEGRATOR || ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || MACH_REALVIEW_EB || ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || ARCH_NS9XXX || ARCH_DAVINCI
175 default y if ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || ARCH_NS9XXX 175 default y if ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || ARCH_NS9XXX || ARCH_DAVINCI
176 select CPU_32v5 176 select CPU_32v5
177 select CPU_ABRT_EV5TJ 177 select CPU_ABRT_EV5TJ
178 select CPU_CACHE_VIVT 178 select CPU_CACHE_VIVT
diff --git a/include/asm-arm/arch-davinci/common.h b/include/asm-arm/arch-davinci/common.h
new file mode 100644
index 000000000000..a97dfbb15e57
--- /dev/null
+++ b/include/asm-arm/arch-davinci/common.h
@@ -0,0 +1,19 @@
1/*
2 * Header for code common to all DaVinci machines.
3 *
4 * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
5 *
6 * 2007 (c) MontaVista Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
9 * or implied.
10 */
11
12#ifndef __ARCH_ARM_MACH_DAVINCI_COMMON_H
13#define __ARCH_ARM_MACH_DAVINCI_COMMON_H
14
15struct sys_timer;
16
17extern struct sys_timer davinci_timer;
18
19#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 000000000000..e6c0f0d5d062
--- /dev/null
+++ b/include/asm-arm/arch-davinci/debug-macro.S
@@ -0,0 +1,21 @@
1/*
2 * Debugging macro for DaVinci
3 *
4 * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
5 *
6 * 2007 (c) MontaVista Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
9 * or implied.
10 */
11
12 .macro addruart, rx
13 mrc p15, 0, \rx, c1, c0
14 tst \rx, #1 @ MMU enabled?
15 moveq \rx, #0x01000000 @ physical base address
16 movne \rx, #0xfe000000 @ virtual base
17 orr \rx, \rx, #0x00c20000 @ UART 0
18 .endm
19
20#define UART_SHIFT 2
21#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 000000000000..8e2f2d0ba667
--- /dev/null
+++ b/include/asm-arm/arch-davinci/dma.h
@@ -0,0 +1,16 @@
1/*
2 * DaVinci DMA definitions
3 *
4 * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
5 *
6 * 2007 (c) MontaVista Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
9 * or implied.
10 */
11#ifndef __ASM_ARCH_DMA_H
12#define __ASM_ARCH_DMA_H
13
14#define MAX_DMA_ADDRESS 0xffffffff
15
16#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 000000000000..3ebfcc5cb58e
--- /dev/null
+++ b/include/asm-arm/arch-davinci/entry-macro.S
@@ -0,0 +1,32 @@
1/*
2 * Low-level IRQ helper macros for TI DaVinci-based platforms
3 *
4 * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
5 *
6 * 2007 (c) MontaVista Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
9 * or implied.
10 */
11#include <asm/arch/io.h>
12#include <asm/arch/irqs.h>
13
14 .macro disable_fiq
15 .endm
16
17 .macro get_irqnr_preamble, base, tmp
18 ldr \base, =IO_ADDRESS(DAVINCI_ARM_INTC_BASE)
19 .endm
20
21 .macro arch_ret_to_user, tmp1, tmp2
22 .endm
23
24 .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
25 ldr \tmp, [\base, #0x14]
26 mov \tmp, \tmp, lsr #2
27 sub \irqnr, \tmp, #1
28 cmp \tmp, #0
29 .endm
30
31 .macro irq_prio_table
32 .endm
diff --git a/include/asm-arm/arch-davinci/hardware.h b/include/asm-arm/arch-davinci/hardware.h
new file mode 100644
index 000000000000..60362d80229e
--- /dev/null
+++ b/include/asm-arm/arch-davinci/hardware.h
@@ -0,0 +1,14 @@
1/*
2 * Common hardware definitions
3 *
4 * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
5 *
6 * 2007 (c) MontaVista Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
9 * or implied.
10 */
11#ifndef __ASM_ARCH_HARDWARE_H
12#define __ASM_ARCH_HARDWARE_H
13
14#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 000000000000..e7accb910864
--- /dev/null
+++ b/include/asm-arm/arch-davinci/io.h
@@ -0,0 +1,79 @@
1/*
2 * DaVinci IO address definitions
3 *
4 * Copied from include/asm/arm/arch-omap/io.h
5 *
6 * 2007 (c) MontaVista Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
9 * or implied.
10 */
11#ifndef __ASM_ARCH_IO_H
12#define __ASM_ARCH_IO_H
13
14#define IO_SPACE_LIMIT 0xffffffff
15
16/*
17 * ----------------------------------------------------------------------------
18 * I/O mapping
19 * ----------------------------------------------------------------------------
20 */
21#define IO_PHYS 0x01c00000
22#define IO_OFFSET 0xfd000000 /* Virtual IO = 0xfec00000 */
23#define IO_SIZE 0x00400000
24#define IO_VIRT (IO_PHYS + IO_OFFSET)
25#define io_p2v(pa) ((pa) + IO_OFFSET)
26#define io_v2p(va) ((va) - IO_OFFSET)
27#define IO_ADDRESS(x) io_p2v(x)
28
29/*
30 * We don't actually have real ISA nor PCI buses, but there is so many
31 * drivers out there that might just work if we fake them...
32 */
33#define PCIO_BASE 0
34#define __io(a) ((void __iomem *)(PCIO_BASE + (a)))
35#define __mem_pci(a) (a)
36#define __mem_isa(a) (a)
37
38#ifndef __ASSEMBLER__
39
40/*
41 * Functions to access the DaVinci IO region
42 *
43 * NOTE: - Use davinci_read/write[bwl] for physical register addresses
44 * - Use __raw_read/write[bwl]() for virtual register addresses
45 * - Use IO_ADDRESS(phys_addr) to convert registers to virtual addresses
46 * - DO NOT use hardcoded virtual addresses to allow changing the
47 * IO address space again if needed
48 */
49#define davinci_readb(a) (*(volatile unsigned char *)IO_ADDRESS(a))
50#define davinci_readw(a) (*(volatile unsigned short *)IO_ADDRESS(a))
51#define davinci_readl(a) (*(volatile unsigned int *)IO_ADDRESS(a))
52
53#define davinci_writeb(v,a) (*(volatile unsigned char *)IO_ADDRESS(a) = (v))
54#define davinci_writew(v,a) (*(volatile unsigned short *)IO_ADDRESS(a) = (v))
55#define davinci_writel(v,a) (*(volatile unsigned int *)IO_ADDRESS(a) = (v))
56
57/* 16 bit uses LDRH/STRH, base +/- offset_8 */
58typedef struct { volatile u16 offset[256]; } __regbase16;
59#define __REGV16(vaddr) ((__regbase16 *)((vaddr)&~0xff)) \
60 ->offset[((vaddr)&0xff)>>1]
61#define __REG16(paddr) __REGV16(io_p2v(paddr))
62
63/* 8/32 bit uses LDR/STR, base +/- offset_12 */
64typedef struct { volatile u8 offset[4096]; } __regbase8;
65#define __REGV8(vaddr) ((__regbase8 *)((vaddr)&~4095)) \
66 ->offset[((vaddr)&4095)>>0]
67#define __REG8(paddr) __REGV8(io_p2v(paddr))
68
69typedef struct { volatile u32 offset[4096]; } __regbase32;
70#define __REGV32(vaddr) ((__regbase32 *)((vaddr)&~4095)) \
71 ->offset[((vaddr)&4095)>>2]
72
73#define __REG(paddr) __REGV32(io_p2v(paddr))
74#else
75
76#define __REG(x) (*((volatile unsigned long *)io_p2v(x)))
77
78#endif /* __ASSEMBLER__ */
79#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 000000000000..f4c5ca6da9f4
--- /dev/null
+++ b/include/asm-arm/arch-davinci/irqs.h
@@ -0,0 +1,105 @@
1/*
2 * DaVinci interrupt controller definitions
3 *
4 * Copyright (C) 2006 Texas Instruments.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
10 *
11 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
12 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
14 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
15 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
16 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
17 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
18 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
19 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
20 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
21 *
22 * You should have received a copy of the GNU General Public License along
23 * with this program; if not, write to the Free Software Foundation, Inc.,
24 * 675 Mass Ave, Cambridge, MA 02139, USA.
25 *
26 */
27#ifndef __ASM_ARCH_IRQS_H
28#define __ASM_ARCH_IRQS_H
29
30/* Base address */
31#define DAVINCI_ARM_INTC_BASE 0x01C48000
32
33/* Interrupt lines */
34#define IRQ_VDINT0 0
35#define IRQ_VDINT1 1
36#define IRQ_VDINT2 2
37#define IRQ_HISTINT 3
38#define IRQ_H3AINT 4
39#define IRQ_PRVUINT 5
40#define IRQ_RSZINT 6
41#define IRQ_VFOCINT 7
42#define IRQ_VENCINT 8
43#define IRQ_ASQINT 9
44#define IRQ_IMXINT 10
45#define IRQ_VLCDINT 11
46#define IRQ_USBINT 12
47#define IRQ_EMACINT 13
48
49#define IRQ_CCINT0 16
50#define IRQ_CCERRINT 17
51#define IRQ_TCERRINT0 18
52#define IRQ_TCERRINT 19
53#define IRQ_PSCIN 20
54
55#define IRQ_IDE 22
56#define IRQ_HPIINT 23
57#define IRQ_MBXINT 24
58#define IRQ_MBRINT 25
59#define IRQ_MMCINT 26
60#define IRQ_SDIOINT 27
61#define IRQ_MSINT 28
62#define IRQ_DDRINT 29
63#define IRQ_AEMIFINT 30
64#define IRQ_VLQINT 31
65#define IRQ_TINT0_TINT12 32
66#define IRQ_TINT0_TINT34 33
67#define IRQ_TINT1_TINT12 34
68#define IRQ_TINT1_TINT34 35
69#define IRQ_PWMINT0 36
70#define IRQ_PWMINT1 37
71#define IRQ_PWMINT2 38
72#define IRQ_I2C 39
73#define IRQ_UARTINT0 40
74#define IRQ_UARTINT1 41
75#define IRQ_UARTINT2 42
76#define IRQ_SPINT0 43
77#define IRQ_SPINT1 44
78
79#define IRQ_DSP2ARM0 46
80#define IRQ_DSP2ARM1 47
81#define IRQ_GPIO0 48
82#define IRQ_GPIO1 49
83#define IRQ_GPIO2 50
84#define IRQ_GPIO3 51
85#define IRQ_GPIO4 52
86#define IRQ_GPIO5 53
87#define IRQ_GPIO6 54
88#define IRQ_GPIO7 55
89#define IRQ_GPIOBNK0 56
90#define IRQ_GPIOBNK1 57
91#define IRQ_GPIOBNK2 58
92#define IRQ_GPIOBNK3 59
93#define IRQ_GPIOBNK4 60
94#define IRQ_COMMTX 61
95#define IRQ_COMMRX 62
96#define IRQ_EMUINT 63
97
98#define DAVINCI_N_AINTC_IRQ 64
99#define DAVINCI_N_GPIO 71
100
101#define NR_IRQS (DAVINCI_N_AINTC_IRQ + DAVINCI_N_GPIO)
102
103#define ARCH_TIMER_IRQ IRQ_TINT1_TINT34
104
105#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 000000000000..dd1625c23cf4
--- /dev/null
+++ b/include/asm-arm/arch-davinci/memory.h
@@ -0,0 +1,64 @@
1/*
2 * DaVinci memory space definitions
3 *
4 * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
5 *
6 * 2007 (c) MontaVista Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
9 * or implied.
10 */
11#ifndef __ASM_ARCH_MEMORY_H
12#define __ASM_ARCH_MEMORY_H
13
14/**************************************************************************
15 * Included Files
16 **************************************************************************/
17#include <asm/page.h>
18#include <asm/sizes.h>
19
20/**************************************************************************
21 * Definitions
22 **************************************************************************/
23#define DAVINCI_DDR_BASE 0x80000000
24#define DAVINCI_IRAM_BASE 0x00008000 /* ARM Internal RAM */
25
26#define PHYS_OFFSET DAVINCI_DDR_BASE
27
28/*
29 * Increase size of DMA-consistent memory region
30 */
31#define CONSISTENT_DMA_SIZE (14<<20)
32
33#ifndef __ASSEMBLY__
34/*
35 * Restrict DMA-able region to workaround silicon bug. The bug
36 * restricts buffers available for DMA to video hardware to be
37 * below 128M
38 */
39static inline void
40__arch_adjust_zones(int node, unsigned long *size, unsigned long *holes)
41{
42 unsigned int sz = (128<<20) >> PAGE_SHIFT;
43
44 if (node != 0)
45 sz = 0;
46
47 size[1] = size[0] - sz;
48 size[0] = sz;
49}
50
51#define arch_adjust_zones(node, zone_size, holes) \
52 if ((meminfo.bank[0].size >> 20) > 128) __arch_adjust_zones(node, zone_size, holes)
53
54#define ISA_DMA_THRESHOLD (PHYS_OFFSET + (128<<20) - 1)
55
56#endif
57
58/*
59 * Bus address is physical address
60 */
61#define __virt_to_bus(x) __virt_to_phys(x)
62#define __bus_to_virt(x) __phys_to_virt(x)
63
64#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 000000000000..4977aa071e1e
--- /dev/null
+++ b/include/asm-arm/arch-davinci/psc.h
@@ -0,0 +1,76 @@
1/*
2 * DaVinci Power & Sleep Controller (PSC) defines
3 *
4 * Copyright (C) 2006 Texas Instruments.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
10 *
11 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
12 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
14 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
15 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
16 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
17 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
18 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
19 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
20 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
21 *
22 * You should have received a copy of the GNU General Public License along
23 * with this program; if not, write to the Free Software Foundation, Inc.,
24 * 675 Mass Ave, Cambridge, MA 02139, USA.
25 *
26 */
27#ifndef __ASM_ARCH_PSC_H
28#define __ASM_ARCH_PSC_H
29
30/* Power and Sleep Controller (PSC) Domains */
31#define DAVINCI_GPSC_ARMDOMAIN 0
32#define DAVINCI_GPSC_DSPDOMAIN 1
33
34#define DAVINCI_LPSC_VPSSMSTR 0
35#define DAVINCI_LPSC_VPSSSLV 1
36#define DAVINCI_LPSC_TPCC 2
37#define DAVINCI_LPSC_TPTC0 3
38#define DAVINCI_LPSC_TPTC1 4
39#define DAVINCI_LPSC_EMAC 5
40#define DAVINCI_LPSC_EMAC_WRAPPER 6
41#define DAVINCI_LPSC_MDIO 7
42#define DAVINCI_LPSC_IEEE1394 8
43#define DAVINCI_LPSC_USB 9
44#define DAVINCI_LPSC_ATA 10
45#define DAVINCI_LPSC_VLYNQ 11
46#define DAVINCI_LPSC_UHPI 12
47#define DAVINCI_LPSC_DDR_EMIF 13
48#define DAVINCI_LPSC_AEMIF 14
49#define DAVINCI_LPSC_MMC_SD 15
50#define DAVINCI_LPSC_MEMSTICK 16
51#define DAVINCI_LPSC_McBSP 17
52#define DAVINCI_LPSC_I2C 18
53#define DAVINCI_LPSC_UART0 19
54#define DAVINCI_LPSC_UART1 20
55#define DAVINCI_LPSC_UART2 21
56#define DAVINCI_LPSC_SPI 22
57#define DAVINCI_LPSC_PWM0 23
58#define DAVINCI_LPSC_PWM1 24
59#define DAVINCI_LPSC_PWM2 25
60#define DAVINCI_LPSC_GPIO 26
61#define DAVINCI_LPSC_TIMER0 27
62#define DAVINCI_LPSC_TIMER1 28
63#define DAVINCI_LPSC_TIMER2 29
64#define DAVINCI_LPSC_SYSTEM_SUBSYS 30
65#define DAVINCI_LPSC_ARM 31
66#define DAVINCI_LPSC_SCR2 32
67#define DAVINCI_LPSC_SCR3 33
68#define DAVINCI_LPSC_SCR4 34
69#define DAVINCI_LPSC_CROSSBAR 35
70#define DAVINCI_LPSC_CFG27 36
71#define DAVINCI_LPSC_CFG3 37
72#define DAVINCI_LPSC_CFG5 38
73#define DAVINCI_LPSC_GEM 39
74#define DAVINCI_LPSC_IMCOP 40
75
76#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 000000000000..ed418ef76805
--- /dev/null
+++ b/include/asm-arm/arch-davinci/serial.h
@@ -0,0 +1,20 @@
1/*
2 * DaVinci serial device definitions
3 *
4 * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
5 *
6 * 2007 (c) MontaVista Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
9 * or implied.
10 */
11#ifndef __ASM_ARCH_SERIAL_H
12#define __ASM_ARCH_SERIAL_H
13
14#include <asm/arch/io.h>
15
16#define DAVINCI_UART0_BASE (IO_PHYS + 0x20000)
17#define DAVINCI_UART1_BASE (IO_PHYS + 0x20400)
18#define DAVINCI_UART2_BASE (IO_PHYS + 0x20800)
19
20#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 000000000000..440ac515804b
--- /dev/null
+++ b/include/asm-arm/arch-davinci/system.h
@@ -0,0 +1,29 @@
1/*
2 * DaVinci system defines
3 *
4 * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
5 *
6 * 2007 (c) MontaVista Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
9 * or implied.
10 */
11#ifndef __ASM_ARCH_SYSTEM_H
12#define __ASM_ARCH_SYSTEM_H
13
14#include <asm/io.h>
15#include <asm/hardware.h>
16
17extern void davinci_watchdog_reset(void);
18
19static void arch_idle(void)
20{
21 cpu_do_idle();
22}
23
24static void arch_reset(char mode)
25{
26 davinci_watchdog_reset();
27}
28
29#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 000000000000..52827567841d
--- /dev/null
+++ b/include/asm-arm/arch-davinci/timex.h
@@ -0,0 +1,17 @@
1/*
2 * DaVinci timer defines
3 *
4 * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
5 *
6 * 2007 (c) MontaVista Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
9 * or implied.
10 */
11#ifndef __ASM_ARCH_TIMEX_H
12#define __ASM_ARCH_TIMEX_H
13
14/* The source frequency for the timers is the 27MHz clock */
15#define CLOCK_TICK_RATE 27000000
16
17#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 000000000000..f6d1570f7206
--- /dev/null
+++ b/include/asm-arm/arch-davinci/uncompress.h
@@ -0,0 +1,35 @@
1/*
2 * Serial port stubs for kernel decompress status messages
3 *
4 * Author: Anant Gole
5 * (C) Copyright (C) 2006, Texas Instruments, Inc
6 *
7 * This file is licensed under the terms of the GNU General Public License
8 * version 2. This program is licensed "as is" without any warranty of any
9 * kind, whether express or implied.
10 */
11
12#include <linux/types.h>
13#include <linux/serial_reg.h>
14#include <asm/arch/serial.h>
15
16/* PORT_16C550A, in polled non-fifo mode */
17
18static void putc(char c)
19{
20 volatile u32 *uart = (volatile void *) DAVINCI_UART0_BASE;
21
22 while (!(uart[UART_LSR] & UART_LSR_THRE))
23 barrier();
24 uart[UART_TX] = c;
25}
26
27static inline void flush(void)
28{
29 volatile u32 *uart = (volatile void *) DAVINCI_UART0_BASE;
30 while (!(uart[UART_LSR] & UART_LSR_THRE))
31 barrier();
32}
33
34#define arch_decomp_setup()
35#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 000000000000..9b47fa89b333
--- /dev/null
+++ b/include/asm-arm/arch-davinci/vmalloc.h
@@ -0,0 +1,15 @@
1/*
2 * DaVinci vmalloc definitions
3 *
4 * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
5 *
6 * 2007 (c) MontaVista Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
9 * or implied.
10 */
11#include <asm/memory.h>
12#include <asm/arch/io.h>
13
14/* Allow vmalloc range until the IO virtual range minus a 2M "hole" */
15#define VMALLOC_END (IO_VIRT - (2<<20))
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-17 23:39:38 -0500