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authorTony Lindgren <tony@atomide.com>2005-11-10 09:26:51 -0500
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-11-10 09:26:51 -0500
commit1dbae815a724303b46ab4663b5fc23c13e9d9690 (patch)
tree7979efc3eb2bc5c2f969020354b8c9b2954470f0 /arch/arm/mach-omap2
parent1a8bfa1eb998af6e650ad26201f7cae9f2a2fdc8 (diff)
[ARM] 3145/1: OMAP 3a/5: Add support for omap24xx
Patch from Tony Lindgren This patch adds support for omap24xx series of processors. The files live in arch/arm/mach-omap2, and share common files with omap15xx and omap16xx processors in arch/arm/plat-omap. Omap24xx support was originally added for 2.6.9 by TI. This code was then improved and integrated to share common code with omap15xx and omap16xx processors by various omap developers, such as Paul Mundt, Juha Yrjola, Imre Deak, Tony Lindgren, Richard Woodruff, Nishant Menon, Komal Shah et al. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-omap2')
-rw-r--r--arch/arm/mach-omap2/Kconfig22
-rw-r--r--arch/arm/mach-omap2/Makefile13
-rw-r--r--arch/arm/mach-omap2/Makefile.boot3
-rw-r--r--arch/arm/mach-omap2/board-generic.c80
-rw-r--r--arch/arm/mach-omap2/board-h4.c197
-rw-r--r--arch/arm/mach-omap2/devices.c89
-rw-r--r--arch/arm/mach-omap2/id.c124
-rw-r--r--arch/arm/mach-omap2/io.c53
-rw-r--r--arch/arm/mach-omap2/irq.c149
-rw-r--r--arch/arm/mach-omap2/mux.c65
-rw-r--r--arch/arm/mach-omap2/prcm.h419
-rw-r--r--arch/arm/mach-omap2/serial.c180
-rw-r--r--arch/arm/mach-omap2/sram-fn.S333
-rw-r--r--arch/arm/mach-omap2/timer-gp.c126
14 files changed, 1853 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
new file mode 100644
index 000000000000..578880943cf2
--- /dev/null
+++ b/arch/arm/mach-omap2/Kconfig
@@ -0,0 +1,22 @@
1comment "OMAP Core Type"
2 depends on ARCH_OMAP2
3
4config ARCH_OMAP24XX
5 bool "OMAP24xx Based System"
6 depends on ARCH_OMAP2
7
8config ARCH_OMAP2420
9 bool "OMAP2420 support"
10 depends on ARCH_OMAP24XX
11
12comment "OMAP Board Type"
13 depends on ARCH_OMAP2
14
15config MACH_OMAP_GENERIC
16 bool "Generic OMAP board"
17 depends on ARCH_OMAP2 && ARCH_OMAP24XX
18
19config MACH_OMAP_H4
20 bool "OMAP 2420 H4 board"
21 depends on ARCH_OMAP2 && ARCH_OMAP24XX
22
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
new file mode 100644
index 000000000000..42041166435c
--- /dev/null
+++ b/arch/arm/mach-omap2/Makefile
@@ -0,0 +1,13 @@
1#
2# Makefile for the linux kernel.
3#
4
5# Common support
6obj-y := irq.o id.o io.o sram-fn.o clock.o mux.o devices.o serial.o
7
8obj-$(CONFIG_OMAP_MPU_TIMER) += timer-gp.o
9
10# Specific board support
11obj-$(CONFIG_MACH_OMAP_GENERIC) += board-generic.o
12obj-$(CONFIG_MACH_OMAP_H4) += board-h4.o
13
diff --git a/arch/arm/mach-omap2/Makefile.boot b/arch/arm/mach-omap2/Makefile.boot
new file mode 100644
index 000000000000..565aff7f37a9
--- /dev/null
+++ b/arch/arm/mach-omap2/Makefile.boot
@@ -0,0 +1,3 @@
1 zreladdr-y := 0x80008000
2params_phys-y := 0x80000100
3initrd_phys-y := 0x80800000
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
new file mode 100644
index 000000000000..c602e7a3d93e
--- /dev/null
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -0,0 +1,80 @@
1/*
2 * linux/arch/arm/mach-omap/omap2/board-generic.c
3 *
4 * Copyright (C) 2005 Nokia Corporation
5 * Author: Paul Mundt <paul.mundt@nokia.com>
6 *
7 * Modified from mach-omap/omap1/board-generic.c
8 *
9 * Code for generic OMAP2 board. Should work on many OMAP2 systems where
10 * the bootloader passes the board-specific data to the kernel.
11 * Do not put any board specific code to this file; create a new machine
12 * type if you need custom low-level initializations.
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License version 2 as
16 * published by the Free Software Foundation.
17 */
18
19#include <linux/kernel.h>
20#include <linux/init.h>
21#include <linux/device.h>
22
23#include <asm/hardware.h>
24#include <asm/mach-types.h>
25#include <asm/mach/arch.h>
26#include <asm/mach/map.h>
27
28#include <asm/arch/gpio.h>
29#include <asm/arch/mux.h>
30#include <asm/arch/usb.h>
31#include <asm/arch/board.h>
32#include <asm/arch/common.h>
33
34static void __init omap_generic_init_irq(void)
35{
36 omap_init_irq();
37}
38
39static struct omap_uart_config generic_uart_config __initdata = {
40 .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
41};
42
43static struct omap_mmc_config generic_mmc_config __initdata = {
44 .mmc [0] = {
45 .enabled = 0,
46 .wire4 = 0,
47 .wp_pin = -1,
48 .power_pin = -1,
49 .switch_pin = -1,
50 },
51};
52
53static struct omap_board_config_kernel generic_config[] = {
54 { OMAP_TAG_UART, &generic_uart_config },
55 { OMAP_TAG_MMC, &generic_mmc_config },
56};
57
58static void __init omap_generic_init(void)
59{
60 omap_board_config = generic_config;
61 omap_board_config_size = ARRAY_SIZE(generic_config);
62 omap_serial_init();
63}
64
65static void __init omap_generic_map_io(void)
66{
67 omap_map_common_io();
68}
69
70MACHINE_START(OMAP_GENERIC, "Generic OMAP24xx")
71 /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
72 .phys_ram = 0x80000000,
73 .phys_io = 0x48000000,
74 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
75 .boot_params = 0x80000100,
76 .map_io = omap_generic_map_io,
77 .init_irq = omap_generic_init_irq,
78 .init_machine = omap_generic_init,
79 .timer = &omap_timer,
80MACHINE_END
diff --git a/arch/arm/mach-omap2/board-h4.c b/arch/arm/mach-omap2/board-h4.c
new file mode 100644
index 000000000000..f2554469a76a
--- /dev/null
+++ b/arch/arm/mach-omap2/board-h4.c
@@ -0,0 +1,197 @@
1/*
2 * linux/arch/arm/mach-omap/omap2/board-h4.c
3 *
4 * Copyright (C) 2005 Nokia Corporation
5 * Author: Paul Mundt <paul.mundt@nokia.com>
6 *
7 * Modified from mach-omap/omap1/board-generic.c
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14#include <linux/kernel.h>
15#include <linux/init.h>
16#include <linux/platform_device.h>
17#include <linux/mtd/mtd.h>
18#include <linux/mtd/partitions.h>
19#include <linux/delay.h>
20
21#include <asm/hardware.h>
22#include <asm/mach-types.h>
23#include <asm/mach/arch.h>
24#include <asm/mach/map.h>
25#include <asm/mach/flash.h>
26
27#include <asm/arch/gpio.h>
28#include <asm/arch/mux.h>
29#include <asm/arch/usb.h>
30#include <asm/arch/board.h>
31#include <asm/arch/common.h>
32#include <asm/arch/prcm.h>
33
34#include <asm/io.h>
35#include <asm/delay.h>
36
37static struct mtd_partition h4_partitions[] = {
38 /* bootloader (U-Boot, etc) in first sector */
39 {
40 .name = "bootloader",
41 .offset = 0,
42 .size = SZ_128K,
43 .mask_flags = MTD_WRITEABLE, /* force read-only */
44 },
45 /* bootloader params in the next sector */
46 {
47 .name = "params",
48 .offset = MTDPART_OFS_APPEND,
49 .size = SZ_128K,
50 .mask_flags = 0,
51 },
52 /* kernel */
53 {
54 .name = "kernel",
55 .offset = MTDPART_OFS_APPEND,
56 .size = SZ_2M,
57 .mask_flags = 0
58 },
59 /* file system */
60 {
61 .name = "filesystem",
62 .offset = MTDPART_OFS_APPEND,
63 .size = MTDPART_SIZ_FULL,
64 .mask_flags = 0
65 }
66};
67
68static struct flash_platform_data h4_flash_data = {
69 .map_name = "cfi_probe",
70 .width = 2,
71 .parts = h4_partitions,
72 .nr_parts = ARRAY_SIZE(h4_partitions),
73};
74
75static struct resource h4_flash_resource = {
76 .start = H4_CS0_BASE,
77 .end = H4_CS0_BASE + SZ_64M - 1,
78 .flags = IORESOURCE_MEM,
79};
80
81static struct platform_device h4_flash_device = {
82 .name = "omapflash",
83 .id = 0,
84 .dev = {
85 .platform_data = &h4_flash_data,
86 },
87 .num_resources = 1,
88 .resource = &h4_flash_resource,
89};
90
91static struct resource h4_smc91x_resources[] = {
92 [0] = {
93 .start = OMAP24XX_ETHR_START, /* Physical */
94 .end = OMAP24XX_ETHR_START + 0xf,
95 .flags = IORESOURCE_MEM,
96 },
97 [1] = {
98 .start = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
99 .end = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
100 .flags = IORESOURCE_IRQ,
101 },
102};
103
104static struct platform_device h4_smc91x_device = {
105 .name = "smc91x",
106 .id = -1,
107 .num_resources = ARRAY_SIZE(h4_smc91x_resources),
108 .resource = h4_smc91x_resources,
109};
110
111static struct platform_device *h4_devices[] __initdata = {
112 &h4_smc91x_device,
113 &h4_flash_device,
114};
115
116static inline void __init h4_init_smc91x(void)
117{
118 /* Make sure CS1 timings are correct */
119 GPMC_CONFIG1_1 = 0x00011200;
120 GPMC_CONFIG2_1 = 0x001f1f01;
121 GPMC_CONFIG3_1 = 0x00080803;
122 GPMC_CONFIG4_1 = 0x1c091c09;
123 GPMC_CONFIG5_1 = 0x041f1f1f;
124 GPMC_CONFIG6_1 = 0x000004c4;
125 GPMC_CONFIG7_1 = 0x00000f40 | (0x08000000 >> 24);
126 udelay(100);
127
128 omap_cfg_reg(M15_24XX_GPIO92);
129 if (omap_request_gpio(OMAP24XX_ETHR_GPIO_IRQ) < 0) {
130 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
131 OMAP24XX_ETHR_GPIO_IRQ);
132 return;
133 }
134 omap_set_gpio_direction(OMAP24XX_ETHR_GPIO_IRQ, 1);
135}
136
137static void __init omap_h4_init_irq(void)
138{
139 omap_init_irq();
140 omap_gpio_init();
141 h4_init_smc91x();
142}
143
144static struct omap_uart_config h4_uart_config __initdata = {
145 .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
146};
147
148static struct omap_mmc_config h4_mmc_config __initdata = {
149 .mmc [0] = {
150 .enabled = 1,
151 .wire4 = 1,
152 .wp_pin = -1,
153 .power_pin = -1,
154 .switch_pin = -1,
155 },
156};
157
158static struct omap_lcd_config h4_lcd_config __initdata = {
159 .panel_name = "h4",
160 .ctrl_name = "internal",
161};
162
163static struct omap_board_config_kernel h4_config[] = {
164 { OMAP_TAG_UART, &h4_uart_config },
165 { OMAP_TAG_MMC, &h4_mmc_config },
166 { OMAP_TAG_LCD, &h4_lcd_config },
167};
168
169static void __init omap_h4_init(void)
170{
171 /*
172 * Make sure the serial ports are muxed on at this point.
173 * You have to mux them off in device drivers later on
174 * if not needed.
175 */
176 platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
177 omap_board_config = h4_config;
178 omap_board_config_size = ARRAY_SIZE(h4_config);
179 omap_serial_init();
180}
181
182static void __init omap_h4_map_io(void)
183{
184 omap_map_common_io();
185}
186
187MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
188 /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
189 .phys_ram = 0x80000000,
190 .phys_io = 0x48000000,
191 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
192 .boot_params = 0x80000100,
193 .map_io = omap_h4_map_io,
194 .init_irq = omap_h4_init_irq,
195 .init_machine = omap_h4_init,
196 .timer = &omap_timer,
197MACHINE_END
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
new file mode 100644
index 000000000000..7181edb89352
--- /dev/null
+++ b/arch/arm/mach-omap2/devices.c
@@ -0,0 +1,89 @@
1/*
2 * linux/arch/arm/mach-omap2/devices.c
3 *
4 * OMAP2 platform device setup/initialization
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
12#include <linux/config.h>
13#include <linux/module.h>
14#include <linux/kernel.h>
15#include <linux/init.h>
16#include <linux/platform_device.h>
17
18#include <asm/hardware.h>
19#include <asm/io.h>
20#include <asm/mach-types.h>
21#include <asm/mach/map.h>
22
23#include <asm/arch/tc.h>
24#include <asm/arch/board.h>
25#include <asm/arch/mux.h>
26#include <asm/arch/gpio.h>
27
28extern void omap_nop_release(struct device *dev);
29
30/*-------------------------------------------------------------------------*/
31
32#if defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE)
33
34#define OMAP2_I2C_BASE2 0x48072000
35#define OMAP2_I2C_INT2 57
36
37static struct resource i2c_resources2[] = {
38 {
39 .start = OMAP2_I2C_BASE2,
40 .end = OMAP2_I2C_BASE2 + 0x3f,
41 .flags = IORESOURCE_MEM,
42 },
43 {
44 .start = OMAP2_I2C_INT2,
45 .flags = IORESOURCE_IRQ,
46 },
47};
48
49static struct platform_device omap_i2c_device2 = {
50 .name = "i2c_omap",
51 .id = 2,
52 .dev = {
53 .release = omap_nop_release,
54 },
55 .num_resources = ARRAY_SIZE(i2c_resources2),
56 .resource = i2c_resources2,
57};
58
59/* See also arch/arm/plat-omap/devices.c for first I2C on 24xx */
60static void omap_init_i2c(void)
61{
62 /* REVISIT: Second I2C not in use on H4? */
63 if (machine_is_omap_h4())
64 return;
65
66 omap_cfg_reg(J15_24XX_I2C2_SCL);
67 omap_cfg_reg(H19_24XX_I2C2_SDA);
68 (void) platform_device_register(&omap_i2c_device2);
69}
70
71#else
72
73static void omap_init_i2c(void) {}
74
75#endif
76
77/*-------------------------------------------------------------------------*/
78
79static int __init omap2_init_devices(void)
80{
81 /* please keep these calls, and their implementations above,
82 * in alphabetical order so they're easier to sort through.
83 */
84 omap_init_i2c();
85
86 return 0;
87}
88arch_initcall(omap2_init_devices);
89
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
new file mode 100644
index 000000000000..76187300f2b6
--- /dev/null
+++ b/arch/arm/mach-omap2/id.c
@@ -0,0 +1,124 @@
1/*
2 * linux/arch/arm/mach-omap2/id.c
3 *
4 * OMAP2 CPU identification code
5 *
6 * Copyright (C) 2005 Nokia Corporation
7 * Written by Tony Lindgren <tony@atomide.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14#include <linux/config.h>
15#include <linux/module.h>
16#include <linux/kernel.h>
17#include <linux/init.h>
18
19#include <asm/io.h>
20
21#define OMAP24XX_TAP_BASE io_p2v(0x48014000)
22
23#define OMAP_TAP_IDCODE 0x0204
24#define OMAP_TAP_PROD_ID 0x0208
25
26#define OMAP_TAP_DIE_ID_0 0x0218
27#define OMAP_TAP_DIE_ID_1 0x021C
28#define OMAP_TAP_DIE_ID_2 0x0220
29#define OMAP_TAP_DIE_ID_3 0x0224
30
31/* system_rev fields for OMAP2 processors:
32 * CPU id bits [31:16],
33 * CPU device type [15:12], (unprg,normal,POP)
34 * CPU revision [11:08]
35 * CPU class bits [07:00]
36 */
37
38struct omap_id {
39 u16 hawkeye; /* Silicon type (Hawkeye id) */
40 u8 dev; /* Device type from production_id reg */
41 u32 type; /* combined type id copied to system_rev */
42};
43
44/* Register values to detect the OMAP version */
45static struct omap_id omap_ids[] __initdata = {
46 { .hawkeye = 0xb5d9, .dev = 0x0, .type = 0x24200000 },
47 { .hawkeye = 0xb5d9, .dev = 0x1, .type = 0x24201000 },
48 { .hawkeye = 0xb5d9, .dev = 0x2, .type = 0x24202000 },
49 { .hawkeye = 0xb5d9, .dev = 0x4, .type = 0x24220000 },
50 { .hawkeye = 0xb5d9, .dev = 0x8, .type = 0x24230000 },
51 { .hawkeye = 0xb68a, .dev = 0x0, .type = 0x24300000 },
52};
53
54static u32 __init read_tap_reg(int reg)
55{
56 return __raw_readl(OMAP24XX_TAP_BASE + reg);
57}
58
59void __init omap2_check_revision(void)
60{
61 int i, j;
62 u32 idcode;
63 u32 prod_id;
64 u16 hawkeye;
65 u8 dev_type;
66 u8 rev;
67
68 idcode = read_tap_reg(OMAP_TAP_IDCODE);
69 prod_id = read_tap_reg(OMAP_TAP_PROD_ID);
70 hawkeye = (idcode >> 12) & 0xffff;
71 rev = (idcode >> 28) & 0x0f;
72 dev_type = (prod_id >> 16) & 0x0f;
73
74#ifdef DEBUG
75 printk(KERN_DEBUG "OMAP_TAP_IDCODE 0x%08x REV %i HAWKEYE 0x%04x MANF %03x\n",
76 idcode, rev, hawkeye, (idcode >> 1) & 0x7ff);
77 printk(KERN_DEBUG "OMAP_TAP_DIE_ID_0: 0x%08x\n",
78 read_tap_reg(OMAP_TAP_DIE_ID_0));
79 printk(KERN_DEBUG "OMAP_TAP_DIE_ID_1: 0x%08x DEV_REV: %i\n",
80 read_tap_reg(OMAP_TAP_DIE_ID_1),
81 (read_tap_reg(OMAP_TAP_DIE_ID_1) >> 28) & 0xf);
82 printk(KERN_DEBUG "OMAP_TAP_DIE_ID_2: 0x%08x\n",
83 read_tap_reg(OMAP_TAP_DIE_ID_2));
84 printk(KERN_DEBUG "OMAP_TAP_DIE_ID_3: 0x%08x\n",
85 read_tap_reg(OMAP_TAP_DIE_ID_3));
86 printk(KERN_DEBUG "OMAP_TAP_PROD_ID_0: 0x%08x DEV_TYPE: %i\n",
87 prod_id, dev_type);
88#endif
89
90 /* Check hawkeye ids */
91 for (i = 0; i < ARRAY_SIZE(omap_ids); i++) {
92 if (hawkeye == omap_ids[i].hawkeye)
93 break;
94 }
95
96 if (i == ARRAY_SIZE(omap_ids)) {
97 printk(KERN_ERR "Unknown OMAP CPU id\n");
98 return;
99 }
100
101 for (j = i; j < ARRAY_SIZE(omap_ids); j++) {
102 if (dev_type == omap_ids[j].dev)
103 break;
104 }
105
106 if (j == ARRAY_SIZE(omap_ids)) {
107 printk(KERN_ERR "Unknown OMAP device type. "
108 "Handling it as OMAP%04x\n",
109 omap_ids[i].type >> 16);
110 j = i;
111 }
112 system_rev = omap_ids[j].type;
113
114 system_rev |= rev << 8;
115
116 /* Add the cpu class info (24xx) */
117 system_rev |= 0x24;
118
119 pr_info("OMAP%04x", system_rev >> 16);
120 if ((system_rev >> 8) & 0x0f)
121 printk("%x", (system_rev >> 8) & 0x0f);
122 printk("\n");
123}
124
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
new file mode 100644
index 000000000000..8ea67bf196a5
--- /dev/null
+++ b/arch/arm/mach-omap2/io.c
@@ -0,0 +1,53 @@
1/*
2 * linux/arch/arm/mach-omap2/io.c
3 *
4 * OMAP2 I/O mapping code
5 *
6 * Copyright (C) 2005 Nokia Corporation
7 * Author: Juha Yrjölä <juha.yrjola@nokia.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14#include <linux/config.h>
15#include <linux/module.h>
16#include <linux/kernel.h>
17#include <linux/init.h>
18
19#include <asm/mach/map.h>
20#include <asm/io.h>
21#include <asm/arch/mux.h>
22
23extern void omap_sram_init(void);
24extern int omap2_clk_init(void);
25extern void omap2_check_revision(void);
26
27/*
28 * The machine specific code may provide the extra mapping besides the
29 * default mapping provided here.
30 */
31static struct map_desc omap2_io_desc[] __initdata = {
32 {
33 .virtual = L3_24XX_VIRT,
34 .pfn = __phys_to_pfn(L3_24XX_PHYS),
35 .length = L3_24XX_SIZE,
36 .type = MT_DEVICE
37 },
38 {
39 .virtual = L4_24XX_VIRT,
40 .pfn = __phys_to_pfn(L4_24XX_PHYS),
41 .length = L4_24XX_SIZE,
42 .type = MT_DEVICE
43 }
44};
45
46void __init omap_map_common_io(void)
47{
48 iotable_init(omap2_io_desc, ARRAY_SIZE(omap2_io_desc));
49 omap2_check_revision();
50 omap_sram_init();
51 omap2_mux_init();
52 omap2_clk_init();
53}
diff --git a/arch/arm/mach-omap2/irq.c b/arch/arm/mach-omap2/irq.c
new file mode 100644
index 000000000000..d7baff675cfe
--- /dev/null
+++ b/arch/arm/mach-omap2/irq.c
@@ -0,0 +1,149 @@
1/*
2 * linux/arch/arm/mach-omap/omap2/irq.c
3 *
4 * Interrupt handler for OMAP2 boards.
5 *
6 * Copyright (C) 2005 Nokia Corporation
7 * Author: Paul Mundt <paul.mundt@nokia.com>
8 *
9 * This file is subject to the terms and conditions of the GNU General Public
10 * License. See the file "COPYING" in the main directory of this archive
11 * for more details.
12 */
13#include <linux/kernel.h>
14#include <linux/init.h>
15#include <linux/config.h>
16#include <linux/interrupt.h>
17#include <asm/hardware.h>
18#include <asm/mach/irq.h>
19#include <asm/irq.h>
20#include <asm/io.h>
21
22#define INTC_REVISION 0x0000
23#define INTC_SYSCONFIG 0x0010
24#define INTC_SYSSTATUS 0x0014
25#define INTC_CONTROL 0x0048
26#define INTC_MIR_CLEAR0 0x0088
27#define INTC_MIR_SET0 0x008c
28
29/*
30 * OMAP2 has a number of different interrupt controllers, each interrupt
31 * controller is identified as its own "bank". Register definitions are
32 * fairly consistent for each bank, but not all registers are implemented
33 * for each bank.. when in doubt, consult the TRM.
34 */
35static struct omap_irq_bank {
36 unsigned long base_reg;
37 unsigned int nr_irqs;
38} __attribute__ ((aligned(4))) irq_banks[] = {
39 {
40 /* MPU INTC */
41 .base_reg = OMAP24XX_IC_BASE,
42 .nr_irqs = 96,
43 }, {
44 /* XXX: DSP INTC */
45
46#if 0
47 /*
48 * Commented out for now until we fix the IVA clocking
49 */
50#ifdef CONFIG_ARCH_OMAP2420
51 }, {
52 /* IVA INTC (2420 only) */
53 .base_reg = OMAP24XX_IVA_INTC_BASE,
54 .nr_irqs = 16, /* Actually 32, but only 16 are used */
55#endif
56#endif
57 }
58};
59
60/* XXX: FIQ and additional INTC support (only MPU at the moment) */
61static void omap_ack_irq(unsigned int irq)
62{
63 omap_writel(0x1, irq_banks[0].base_reg + INTC_CONTROL);
64}
65
66static void omap_mask_irq(unsigned int irq)
67{
68 int offset = (irq >> 5) << 5;
69
70 if (irq >= 64) {
71 irq %= 64;
72 } else if (irq >= 32) {
73 irq %= 32;
74 }
75
76 omap_writel(1 << irq, irq_banks[0].base_reg + INTC_MIR_SET0 + offset);
77}
78
79static void omap_unmask_irq(unsigned int irq)
80{
81 int offset = (irq >> 5) << 5;
82
83 if (irq >= 64) {
84 irq %= 64;
85 } else if (irq >= 32) {
86 irq %= 32;
87 }
88
89 omap_writel(1 << irq, irq_banks[0].base_reg + INTC_MIR_CLEAR0 + offset);
90}
91
92static void omap_mask_ack_irq(unsigned int irq)
93{
94 omap_mask_irq(irq);
95 omap_ack_irq(irq);
96}
97
98static struct irqchip omap_irq_chip = {
99 .ack = omap_mask_ack_irq,
100 .mask = omap_mask_irq,
101 .unmask = omap_unmask_irq,
102};
103
104static void __init omap_irq_bank_init_one(struct omap_irq_bank *bank)
105{
106 unsigned long tmp;
107
108 tmp = omap_readl(bank->base_reg + INTC_REVISION) & 0xff;
109 printk(KERN_INFO "IRQ: Found an INTC at 0x%08lx "
110 "(revision %ld.%ld) with %d interrupts\n",
111 bank->base_reg, tmp >> 4, tmp & 0xf, bank->nr_irqs);
112
113 tmp = omap_readl(bank->base_reg + INTC_SYSCONFIG);
114 tmp |= 1 << 1; /* soft reset */
115 omap_writel(tmp, bank->base_reg + INTC_SYSCONFIG);
116
117 while (!(omap_readl(bank->base_reg + INTC_SYSSTATUS) & 0x1))
118 /* Wait for reset to complete */;
119}
120
121void __init omap_init_irq(void)
122{
123 unsigned long nr_irqs = 0;
124 unsigned int nr_banks = 0;
125 int i;
126
127 for (i = 0; i < ARRAY_SIZE(irq_banks); i++) {
128 struct omap_irq_bank *bank = irq_banks + i;
129
130 /* XXX */
131 if (!bank->base_reg)
132 continue;
133
134 omap_irq_bank_init_one(bank);
135
136 nr_irqs += bank->nr_irqs;
137 nr_banks++;
138 }
139
140 printk(KERN_INFO "Total of %ld interrupts on %d active controller%s\n",
141 nr_irqs, nr_banks, nr_banks > 1 ? "s" : "");
142
143 for (i = 0; i < nr_irqs; i++) {
144 set_irq_chip(i, &omap_irq_chip);
145 set_irq_handler(i, do_level_IRQ);
146 set_irq_flags(i, IRQF_VALID);
147 }
148}
149
diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c
new file mode 100644
index 000000000000..ea4654815dd1
--- /dev/null
+++ b/arch/arm/mach-omap2/mux.c
@@ -0,0 +1,65 @@
1/*
2 * linux/arch/arm/mach-omap2/mux.c
3 *
4 * OMAP1 pin multiplexing configurations
5 *
6 * Copyright (C) 2003 - 2005 Nokia Corporation
7 *
8 * Written by Tony Lindgren <tony.lindgren@nokia.com>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *
24 */
25#include <linux/config.h>
26#include <linux/module.h>
27#include <linux/init.h>
28#include <asm/system.h>
29#include <asm/io.h>
30#include <linux/spinlock.h>
31
32#include <asm/arch/mux.h>
33
34#ifdef CONFIG_OMAP_MUX
35
36/* NOTE: See mux.h for the enumeration */
37
38struct pin_config __initdata_or_module omap24xx_pins[] = {
39/*
40 * description mux mux pull pull debug
41 * offset mode ena type
42 */
43
44/* 24xx I2C */
45MUX_CFG_24XX("M19_24XX_I2C1_SCL", 0x111, 0, 0, 0, 1)
46MUX_CFG_24XX("L15_24XX_I2C1_SDA", 0x112, 0, 0, 0, 1)
47MUX_CFG_24XX("J15_24XX_I2C2_SCL", 0x113, 0, 0, 0, 1)
48MUX_CFG_24XX("H19_24XX_I2C2_SDA", 0x114, 0, 0, 0, 1)
49
50/* Menelaus interrupt */
51MUX_CFG_24XX("W19_24XX_SYS_NIRQ", 0x12c, 0, 1, 1, 1)
52
53/* 24xx GPIO */
54MUX_CFG_24XX("Y20_24XX_GPIO60", 0x12c, 3, 0, 0, 1)
55MUX_CFG_24XX("M15_24XX_GPIO92", 0x10a, 3, 0, 0, 1)
56
57};
58
59int __init omap2_mux_init(void)
60{
61 omap_mux_register(omap24xx_pins, ARRAY_SIZE(omap24xx_pins));
62 return 0;
63}
64
65#endif
diff --git a/arch/arm/mach-omap2/prcm.h b/arch/arm/mach-omap2/prcm.h
new file mode 100644
index 000000000000..2eb89b936c83
--- /dev/null
+++ b/arch/arm/mach-omap2/prcm.h
@@ -0,0 +1,419 @@
1/*
2 * prcm.h - Access definations for use in OMAP24XX clock and power management
3 *
4 * Copyright (C) 2005 Texas Instruments, Inc.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21#ifndef __ASM_ARM_ARCH_DPM_PRCM_H
22#define __ASM_ARM_ARCH_DPM_PRCM_H
23
24/* SET_PERFORMANCE_LEVEL PARAMETERS */
25#define PRCM_HALF_SPEED 1
26#define PRCM_FULL_SPEED 2
27
28#ifndef __ASSEMBLER__
29
30#define PRCM_REG32(offset) __REG32(OMAP24XX_PRCM_BASE + (offset))
31
32#define PRCM_REVISION PRCM_REG32(0x000)
33#define PRCM_SYSCONFIG PRCM_REG32(0x010)
34#define PRCM_IRQSTATUS_MPU PRCM_REG32(0x018)
35#define PRCM_IRQENABLE_MPU PRCM_REG32(0x01C)
36#define PRCM_VOLTCTRL PRCM_REG32(0x050)
37#define PRCM_VOLTST PRCM_REG32(0x054)
38#define PRCM_CLKSRC_CTRL PRCM_REG32(0x060)
39#define PRCM_CLKOUT_CTRL PRCM_REG32(0x070)
40#define PRCM_CLKEMUL_CTRL PRCM_REG32(0x078)
41#define PRCM_CLKCFG_CTRL PRCM_REG32(0x080)
42#define PRCM_CLKCFG_STATUS PRCM_REG32(0x084)
43#define PRCM_VOLTSETUP PRCM_REG32(0x090)
44#define PRCM_CLKSSETUP PRCM_REG32(0x094)
45#define PRCM_POLCTRL PRCM_REG32(0x098)
46
47/* GENERAL PURPOSE */
48#define GENERAL_PURPOSE1 PRCM_REG32(0x0B0)
49#define GENERAL_PURPOSE2 PRCM_REG32(0x0B4)
50#define GENERAL_PURPOSE3 PRCM_REG32(0x0B8)
51#define GENERAL_PURPOSE4 PRCM_REG32(0x0BC)
52#define GENERAL_PURPOSE5 PRCM_REG32(0x0C0)
53#define GENERAL_PURPOSE6 PRCM_REG32(0x0C4)
54#define GENERAL_PURPOSE7 PRCM_REG32(0x0C8)
55#define GENERAL_PURPOSE8 PRCM_REG32(0x0CC)
56#define GENERAL_PURPOSE9 PRCM_REG32(0x0D0)
57#define GENERAL_PURPOSE10 PRCM_REG32(0x0D4)
58#define GENERAL_PURPOSE11 PRCM_REG32(0x0D8)
59#define GENERAL_PURPOSE12 PRCM_REG32(0x0DC)
60#define GENERAL_PURPOSE13 PRCM_REG32(0x0E0)
61#define GENERAL_PURPOSE14 PRCM_REG32(0x0E4)
62#define GENERAL_PURPOSE15 PRCM_REG32(0x0E8)
63#define GENERAL_PURPOSE16 PRCM_REG32(0x0EC)
64#define GENERAL_PURPOSE17 PRCM_REG32(0x0F0)
65#define GENERAL_PURPOSE18 PRCM_REG32(0x0F4)
66#define GENERAL_PURPOSE19 PRCM_REG32(0x0F8)
67#define GENERAL_PURPOSE20 PRCM_REG32(0x0FC)
68
69/* MPU */
70#define CM_CLKSEL_MPU PRCM_REG32(0x140)
71#define CM_CLKSTCTRL_MPU PRCM_REG32(0x148)
72#define RM_RSTST_MPU PRCM_REG32(0x158)
73#define PM_WKDEP_MPU PRCM_REG32(0x1C8)
74#define PM_EVGENCTRL_MPU PRCM_REG32(0x1D4)
75#define PM_EVEGENONTIM_MPU PRCM_REG32(0x1D8)
76#define PM_EVEGENOFFTIM_MPU PRCM_REG32(0x1DC)
77#define PM_PWSTCTRL_MPU PRCM_REG32(0x1E0)
78#define PM_PWSTST_MPU PRCM_REG32(0x1E4)
79
80/* CORE */
81#define CM_FCLKEN1_CORE PRCM_REG32(0x200)
82#define CM_FCLKEN2_CORE PRCM_REG32(0x204)
83#define CM_FCLKEN3_CORE PRCM_REG32(0x208)
84#define CM_ICLKEN1_CORE PRCM_REG32(0x210)
85#define CM_ICLKEN2_CORE PRCM_REG32(0x214)
86#define CM_ICLKEN3_CORE PRCM_REG32(0x218)
87#define CM_ICLKEN4_CORE PRCM_REG32(0x21C)
88#define CM_IDLEST1_CORE PRCM_REG32(0x220)
89#define CM_IDLEST2_CORE PRCM_REG32(0x224)
90#define CM_IDLEST3_CORE PRCM_REG32(0x228)
91#define CM_IDLEST4_CORE PRCM_REG32(0x22C)
92#define CM_AUTOIDLE1_CORE PRCM_REG32(0x230)
93#define CM_AUTOIDLE2_CORE PRCM_REG32(0x234)
94#define CM_AUTOIDLE3_CORE PRCM_REG32(0x238)
95#define CM_AUTOIDLE4_CORE PRCM_REG32(0x23C)
96#define CM_CLKSEL1_CORE PRCM_REG32(0x240)
97#define CM_CLKSEL2_CORE PRCM_REG32(0x244)
98#define CM_CLKSTCTRL_CORE PRCM_REG32(0x248)
99#define PM_WKEN1_CORE PRCM_REG32(0x2A0)
100#define PM_WKEN2_CORE PRCM_REG32(0x2A4)
101#define PM_WKST1_CORE PRCM_REG32(0x2B0)
102#define PM_WKST2_CORE PRCM_REG32(0x2B4)
103#define PM_WKDEP_CORE PRCM_REG32(0x2C8)
104#define PM_PWSTCTRL_CORE PRCM_REG32(0x2E0)
105#define PM_PWSTST_CORE PRCM_REG32(0x2E4)
106
107/* GFX */
108#define CM_FCLKEN_GFX PRCM_REG32(0x300)
109#define CM_ICLKEN_GFX PRCM_REG32(0x310)
110#define CM_IDLEST_GFX PRCM_REG32(0x320)
111#define CM_CLKSEL_GFX PRCM_REG32(0x340)
112#define CM_CLKSTCTRL_GFX PRCM_REG32(0x348)
113#define RM_RSTCTRL_GFX PRCM_REG32(0x350)
114#define RM_RSTST_GFX PRCM_REG32(0x358)
115#define PM_WKDEP_GFX PRCM_REG32(0x3C8)
116#define PM_PWSTCTRL_GFX PRCM_REG32(0x3E0)
117#define PM_PWSTST_GFX PRCM_REG32(0x3E4)
118
119/* WAKE-UP */
120#define CM_FCLKEN_WKUP PRCM_REG32(0x400)
121#define CM_ICLKEN_WKUP PRCM_REG32(0x410)
122#define CM_IDLEST_WKUP PRCM_REG32(0x420)
123#define CM_AUTOIDLE_WKUP PRCM_REG32(0x430)
124#define CM_CLKSEL_WKUP PRCM_REG32(0x440)
125#define RM_RSTCTRL_WKUP PRCM_REG32(0x450)
126#define RM_RSTTIME_WKUP PRCM_REG32(0x454)
127#define RM_RSTST_WKUP PRCM_REG32(0x458)
128#define PM_WKEN_WKUP PRCM_REG32(0x4A0)
129#define PM_WKST_WKUP PRCM_REG32(0x4B0)
130
131/* CLOCKS */
132#define CM_CLKEN_PLL PRCM_REG32(0x500)
133#define CM_IDLEST_CKGEN PRCM_REG32(0x520)
134#define CM_AUTOIDLE_PLL PRCM_REG32(0x530)
135#define CM_CLKSEL1_PLL PRCM_REG32(0x540)
136#define CM_CLKSEL2_PLL PRCM_REG32(0x544)
137
138/* DSP */
139#define CM_FCLKEN_DSP PRCM_REG32(0x800)
140#define CM_ICLKEN_DSP PRCM_REG32(0x810)
141#define CM_IDLEST_DSP PRCM_REG32(0x820)
142#define CM_AUTOIDLE_DSP PRCM_REG32(0x830)
143#define CM_CLKSEL_DSP PRCM_REG32(0x840)
144#define CM_CLKSTCTRL_DSP PRCM_REG32(0x848)
145#define RM_RSTCTRL_DSP PRCM_REG32(0x850)
146#define RM_RSTST_DSP PRCM_REG32(0x858)
147#define PM_WKEN_DSP PRCM_REG32(0x8A0)
148#define PM_WKDEP_DSP PRCM_REG32(0x8C8)
149#define PM_PWSTCTRL_DSP PRCM_REG32(0x8E0)
150#define PM_PWSTST_DSP PRCM_REG32(0x8E4)
151#define PRCM_IRQSTATUS_DSP PRCM_REG32(0x8F0)
152#define PRCM_IRQENABLE_DSP PRCM_REG32(0x8F4)
153
154/* IVA */
155#define PRCM_IRQSTATUS_IVA PRCM_REG32(0x8F8)
156#define PRCM_IRQENABLE_IVA PRCM_REG32(0x8FC)
157
158/* Modem on 2430 */
159#define CM_FCLKEN_MDM PRCM_REG32(0xC00)
160#define CM_ICLKEN_MDM PRCM_REG32(0xC10)
161#define CM_IDLEST_MDM PRCM_REG32(0xC20)
162#define CM_CLKSEL_MDM PRCM_REG32(0xC40)
163
164/* FIXME: Move to header for 2430 */
165#define DISP_BASE (OMAP24XX_L4_IO_BASE+0x50000)
166#define DISP_REG32(offset) __REG32(DISP_BASE + (offset))
167
168#define GPMC_BASE (OMAP24XX_GPMC_BASE)
169#define GPMC_REG32(offset) __REG32(GPMC_BASE + (offset))
170
171#define GPT1_BASE (OMAP24XX_GPT1)
172#define GPT1_REG32(offset) __REG32(GPT1_BASE + (offset))
173
174/* Misc sysconfig */
175#define DISPC_SYSCONFIG DISP_REG32(0x410)
176#define SPI_BASE (OMAP24XX_L4_IO_BASE+0x98000)
177#define MCSPI1_SYSCONFIG __REG32(SPI_BASE + 0x10)
178#define MCSPI2_SYSCONFIG __REG32(SPI_BASE+0x2000 + 0x10)
179
180//#define DSP_MMU_SYSCONFIG 0x5A000010
181#define CAMERA_MMU_SYSCONFIG __REG32(DISP_BASE+0x2C10)
182//#define IVA_MMU_SYSCONFIG 0x5D000010
183//#define DSP_DMA_SYSCONFIG 0x00FCC02C
184#define CAMERA_DMA_SYSCONFIG __REG32(DISP_BASE+0x282C)
185#define SYSTEM_DMA_SYSCONFIG __REG32(DISP_BASE+0x602C)
186#define GPMC_SYSCONFIG GPMC_REG32(0x010)
187#define MAILBOXES_SYSCONFIG __REG32(OMAP24XX_L4_IO_BASE+0x94010)
188#define UART1_SYSCONFIG __REG32(OMAP24XX_L4_IO_BASE+0x6A054)
189#define UART2_SYSCONFIG __REG32(OMAP24XX_L4_IO_BASE+0x6C054)
190#define UART3_SYSCONFIG __REG32(OMAP24XX_L4_IO_BASE+0x6E054)
191//#define IVA_SYSCONFIG 0x5C060010
192#define SDRC_SYSCONFIG __REG32(OMAP24XX_SDRC_BASE+0x10)
193#define SMS_SYSCONFIG __REG32(OMAP24XX_SMS_BASE+0x10)
194#define SSI_SYSCONFIG __REG32(DISP_BASE+0x8010)
195//#define VLYNQ_SYSCONFIG 0x67FFFE10
196
197/* rkw - good cannidates for PM_ to start what nm was trying */
198#define OMAP24XX_GPT2 (OMAP24XX_L4_IO_BASE+0x2A000)
199#define OMAP24XX_GPT3 (OMAP24XX_L4_IO_BASE+0x78000)
200#define OMAP24XX_GPT4 (OMAP24XX_L4_IO_BASE+0x7A000)
201#define OMAP24XX_GPT5 (OMAP24XX_L4_IO_BASE+0x7C000)
202#define OMAP24XX_GPT6 (OMAP24XX_L4_IO_BASE+0x7E000)
203#define OMAP24XX_GPT7 (OMAP24XX_L4_IO_BASE+0x80000)
204#define OMAP24XX_GPT8 (OMAP24XX_L4_IO_BASE+0x82000)
205#define OMAP24XX_GPT9 (OMAP24XX_L4_IO_BASE+0x84000)
206#define OMAP24XX_GPT10 (OMAP24XX_L4_IO_BASE+0x86000)
207#define OMAP24XX_GPT11 (OMAP24XX_L4_IO_BASE+0x88000)
208#define OMAP24XX_GPT12 (OMAP24XX_L4_IO_BASE+0x8A000)
209
210#define GPTIMER1_SYSCONFIG GPT1_REG32(0x010)
211#define GPTIMER2_SYSCONFIG __REG32(OMAP24XX_GPT2 + 0x10)
212#define GPTIMER3_SYSCONFIG __REG32(OMAP24XX_GPT3 + 0x10)
213#define GPTIMER4_SYSCONFIG __REG32(OMAP24XX_GPT4 + 0x10)
214#define GPTIMER5_SYSCONFIG __REG32(OMAP24XX_GPT5 + 0x10)
215#define GPTIMER6_SYSCONFIG __REG32(OMAP24XX_GPT6 + 0x10)
216#define GPTIMER7_SYSCONFIG __REG32(OMAP24XX_GPT7 + 0x10)
217#define GPTIMER8_SYSCONFIG __REG32(OMAP24XX_GPT8 + 0x10)
218#define GPTIMER9_SYSCONFIG __REG32(OMAP24XX_GPT9 + 0x10)
219#define GPTIMER10_SYSCONFIG __REG32(OMAP24XX_GPT10 + 0x10)
220#define GPTIMER11_SYSCONFIG __REG32(OMAP24XX_GPT11 + 0x10)
221#define GPTIMER12_SYSCONFIG __REG32(OMAP24XX_GPT12 + 0x10)
222
223#define GPIOX_BASE(X) (OMAP24XX_GPIO_BASE+(0x2000*((X)-1)))
224
225#define GPIO1_SYSCONFIG __REG32((GPIOX_BASE(1)+0x10))
226#define GPIO2_SYSCONFIG __REG32((GPIOX_BASE(2)+0x10))
227#define GPIO3_SYSCONFIG __REG32((GPIOX_BASE(3)+0x10))
228#define GPIO4_SYSCONFIG __REG32((GPIOX_BASE(4)+0x10))
229
230/* GP TIMER 1 */
231#define GPTIMER1_TISTAT GPT1_REG32(0x014)
232#define GPTIMER1_TISR GPT1_REG32(0x018)
233#define GPTIMER1_TIER GPT1_REG32(0x01C)
234#define GPTIMER1_TWER GPT1_REG32(0x020)
235#define GPTIMER1_TCLR GPT1_REG32(0x024)
236#define GPTIMER1_TCRR GPT1_REG32(0x028)
237#define GPTIMER1_TLDR GPT1_REG32(0x02C)
238#define GPTIMER1_TTGR GPT1_REG32(0x030)
239#define GPTIMER1_TWPS GPT1_REG32(0x034)
240#define GPTIMER1_TMAR GPT1_REG32(0x038)
241#define GPTIMER1_TCAR1 GPT1_REG32(0x03C)
242#define GPTIMER1_TSICR GPT1_REG32(0x040)
243#define GPTIMER1_TCAR2 GPT1_REG32(0x044)
244
245/* rkw -- base fix up please... */
246#define GPTIMER3_TISR __REG32(OMAP24XX_L4_IO_BASE+0x78018)
247
248/* SDRC */
249#define SDRC_DLLA_CTRL __REG32(OMAP24XX_SDRC_BASE+0x060)
250#define SDRC_DLLA_STATUS __REG32(OMAP24XX_SDRC_BASE+0x064)
251#define SDRC_DLLB_CTRL __REG32(OMAP24XX_SDRC_BASE+0x068)
252#define SDRC_DLLB_STATUS __REG32(OMAP24XX_SDRC_BASE+0x06C)
253#define SDRC_POWER __REG32(OMAP24XX_SDRC_BASE+0x070)
254#define SDRC_MR_0 __REG32(OMAP24XX_SDRC_BASE+0x084)
255
256/* GPIO 1 */
257#define GPIO1_BASE GPIOX_BASE(1)
258#define GPIO1_REG32(offset) __REG32(GPIO1_BASE + (offset))
259#define GPIO1_IRQENABLE1 GPIO1_REG32(0x01C)
260#define GPIO1_IRQSTATUS1 GPIO1_REG32(0x018)
261#define GPIO1_IRQENABLE2 GPIO1_REG32(0x02C)
262#define GPIO1_IRQSTATUS2 GPIO1_REG32(0x028)
263#define GPIO1_WAKEUPENABLE GPIO1_REG32(0x020)
264#define GPIO1_RISINGDETECT GPIO1_REG32(0x048)
265#define GPIO1_DATAIN GPIO1_REG32(0x038)
266#define GPIO1_OE GPIO1_REG32(0x034)
267#define GPIO1_DATAOUT GPIO1_REG32(0x03C)
268
269/* GPIO2 */
270#define GPIO2_BASE GPIOX_BASE(2)
271#define GPIO2_REG32(offset) __REG32(GPIO2_BASE + (offset))
272#define GPIO2_IRQENABLE1 GPIO2_REG32(0x01C)
273#define GPIO2_IRQSTATUS1 GPIO2_REG32(0x018)
274#define GPIO2_IRQENABLE2 GPIO2_REG32(0x02C)
275#define GPIO2_IRQSTATUS2 GPIO2_REG32(0x028)
276#define GPIO2_WAKEUPENABLE GPIO2_REG32(0x020)
277#define GPIO2_RISINGDETECT GPIO2_REG32(0x048)
278#define GPIO2_DATAIN GPIO2_REG32(0x038)
279#define GPIO2_OE GPIO2_REG32(0x034)
280#define GPIO2_DATAOUT GPIO2_REG32(0x03C)
281
282/* GPIO 3 */
283#define GPIO3_BASE GPIOX_BASE(3)
284#define GPIO3_REG32(offset) __REG32(GPIO3_BASE + (offset))
285#define GPIO3_IRQENABLE1 GPIO3_REG32(0x01C)
286#define GPIO3_IRQSTATUS1 GPIO3_REG32(0x018)
287#define GPIO3_IRQENABLE2 GPIO3_REG32(0x02C)
288#define GPIO3_IRQSTATUS2 GPIO3_REG32(0x028)
289#define GPIO3_WAKEUPENABLE GPIO3_REG32(0x020)
290#define GPIO3_RISINGDETECT GPIO3_REG32(0x048)
291#define GPIO3_FALLINGDETECT GPIO3_REG32(0x04C)
292#define GPIO3_DATAIN GPIO3_REG32(0x038)
293#define GPIO3_OE GPIO3_REG32(0x034)
294#define GPIO3_DATAOUT GPIO3_REG32(0x03C)
295#define GPIO3_DEBOUNCENABLE GPIO3_REG32(0x050)
296#define GPIO3_DEBOUNCINGTIME GPIO3_REG32(0x054)
297
298/* GPIO 4 */
299#define GPIO4_BASE GPIOX_BASE(4)
300#define GPIO4_REG32(offset) __REG32(GPIO4_BASE + (offset))
301#define GPIO4_IRQENABLE1 GPIO4_REG32(0x01C)
302#define GPIO4_IRQSTATUS1 GPIO4_REG32(0x018)
303#define GPIO4_IRQENABLE2 GPIO4_REG32(0x02C)
304#define GPIO4_IRQSTATUS2 GPIO4_REG32(0x028)
305#define GPIO4_WAKEUPENABLE GPIO4_REG32(0x020)
306#define GPIO4_RISINGDETECT GPIO4_REG32(0x048)
307#define GPIO4_FALLINGDETECT GPIO4_REG32(0x04C)
308#define GPIO4_DATAIN GPIO4_REG32(0x038)
309#define GPIO4_OE GPIO4_REG32(0x034)
310#define GPIO4_DATAOUT GPIO4_REG32(0x03C)
311#define GPIO4_DEBOUNCENABLE GPIO4_REG32(0x050)
312#define GPIO4_DEBOUNCINGTIME GPIO4_REG32(0x054)
313
314
315/* IO CONFIG */
316#define CONTROL_BASE (OMAP24XX_CTRL_BASE)
317#define CONTROL_REG32(offset) __REG32(CONTROL_BASE + (offset))
318
319#define CONTROL_PADCONF_SPI1_NCS2 CONTROL_REG32(0x104)
320#define CONTROL_PADCONF_SYS_XTALOUT CONTROL_REG32(0x134)
321#define CONTROL_PADCONF_UART1_RX CONTROL_REG32(0x0C8)
322#define CONTROL_PADCONF_MCBSP1_DX CONTROL_REG32(0x10C)
323#define CONTROL_PADCONF_GPMC_NCS4 CONTROL_REG32(0x090)
324#define CONTROL_PADCONF_DSS_D5 CONTROL_REG32(0x0B8)
325#define CONTROL_PADCONF_DSS_D9 CONTROL_REG32(0x0BC)
326#define CONTROL_PADCONF_DSS_D13 CONTROL_REG32(0x0C0)
327#define CONTROL_PADCONF_DSS_VSYNC CONTROL_REG32(0x0CC)
328
329/* CONTROL */
330#define CONTROL_DEVCONF CONTROL_REG32(0x274)
331
332/* INTERRUPT CONTROLLER */
333#define INTC_BASE (OMAP24XX_L4_IO_BASE+0xfe000)
334#define INTC_REG32(offset) __REG32(INTC_BASE + (offset))
335
336#define INTC1_U_BASE INTC_REG32(0x000)
337#define INTC_MIR0 INTC_REG32(0x084)
338#define INTC_MIR_SET0 INTC_REG32(0x08C)
339#define INTC_MIR_CLEAR0 INTC_REG32(0x088)
340#define INTC_ISR_CLEAR0 INTC_REG32(0x094)
341#define INTC_MIR1 INTC_REG32(0x0A4)
342#define INTC_MIR_SET1 INTC_REG32(0x0AC)
343#define INTC_MIR_CLEAR1 INTC_REG32(0x0A8)
344#define INTC_ISR_CLEAR1 INTC_REG32(0x0B4)
345#define INTC_MIR2 INTC_REG32(0x0C4)
346#define INTC_MIR_SET2 INTC_REG32(0x0CC)
347#define INTC_MIR_CLEAR2 INTC_REG32(0x0C8)
348#define INTC_ISR_CLEAR2 INTC_REG32(0x0D4)
349#define INTC_SIR_IRQ INTC_REG32(0x040)
350#define INTC_CONTROL INTC_REG32(0x048)
351#define INTC_ILR11 INTC_REG32(0x12C)
352#define INTC_ILR32 INTC_REG32(0x180)
353#define INTC_ILR37 INTC_REG32(0x194)
354#define INTC_SYSCONFIG INTC_REG32(0x010)
355
356/* RAM FIREWALL */
357#define RAMFW_BASE (0x68005000)
358#define RAMFW_REG32(offset) __REG32(RAMFW_BASE + (offset))
359
360#define RAMFW_REQINFOPERM0 RAMFW_REG32(0x048)
361#define RAMFW_READPERM0 RAMFW_REG32(0x050)
362#define RAMFW_WRITEPERM0 RAMFW_REG32(0x058)
363
364/* GPMC CS1 FPGA ON USER INTERFACE MODULE */
365//#define DEBUG_BOARD_LED_REGISTER 0x04000014
366
367/* GPMC CS0 */
368#define GPMC_CONFIG1_0 GPMC_REG32(0x060)
369#define GPMC_CONFIG2_0 GPMC_REG32(0x064)
370#define GPMC_CONFIG3_0 GPMC_REG32(0x068)
371#define GPMC_CONFIG4_0 GPMC_REG32(0x06C)
372#define GPMC_CONFIG5_0 GPMC_REG32(0x070)
373#define GPMC_CONFIG6_0 GPMC_REG32(0x074)
374#define GPMC_CONFIG7_0 GPMC_REG32(0x078)
375
376/* DSS */
377#define DSS_CONTROL DISP_REG32(0x040)
378#define DISPC_CONTROL DISP_REG32(0x440)
379#define DISPC_SYSSTATUS DISP_REG32(0x414)
380#define DISPC_IRQSTATUS DISP_REG32(0x418)
381#define DISPC_IRQENABLE DISP_REG32(0x41C)
382#define DISPC_CONFIG DISP_REG32(0x444)
383#define DISPC_DEFAULT_COLOR0 DISP_REG32(0x44C)
384#define DISPC_DEFAULT_COLOR1 DISP_REG32(0x450)
385#define DISPC_TRANS_COLOR0 DISP_REG32(0x454)
386#define DISPC_TRANS_COLOR1 DISP_REG32(0x458)
387#define DISPC_LINE_NUMBER DISP_REG32(0x460)
388#define DISPC_TIMING_H DISP_REG32(0x464)
389#define DISPC_TIMING_V DISP_REG32(0x468)
390#define DISPC_POL_FREQ DISP_REG32(0x46C)
391#define DISPC_DIVISOR DISP_REG32(0x470)
392#define DISPC_SIZE_DIG DISP_REG32(0x478)
393#define DISPC_SIZE_LCD DISP_REG32(0x47C)
394#define DISPC_GFX_BA0 DISP_REG32(0x480)
395#define DISPC_GFX_BA1 DISP_REG32(0x484)
396#define DISPC_GFX_POSITION DISP_REG32(0x488)
397#define DISPC_GFX_SIZE DISP_REG32(0x48C)
398#define DISPC_GFX_ATTRIBUTES DISP_REG32(0x4A0)
399#define DISPC_GFX_FIFO_THRESHOLD DISP_REG32(0x4A4)
400#define DISPC_GFX_ROW_INC DISP_REG32(0x4AC)
401#define DISPC_GFX_PIXEL_INC DISP_REG32(0x4B0)
402#define DISPC_GFX_WINDOW_SKIP DISP_REG32(0x4B4)
403#define DISPC_GFX_TABLE_BA DISP_REG32(0x4B8)
404#define DISPC_DATA_CYCLE1 DISP_REG32(0x5D4)
405#define DISPC_DATA_CYCLE2 DISP_REG32(0x5D8)
406#define DISPC_DATA_CYCLE3 DISP_REG32(0x5DC)
407
408/* Wake up define for board */
409#define GPIO97 (1 << 1)
410#define GPIO88 (1 << 24)
411
412#endif /* __ASSEMBLER__ */
413
414#endif
415
416
417
418
419
diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
new file mode 100644
index 000000000000..f4df04fe1dd8
--- /dev/null
+++ b/arch/arm/mach-omap2/serial.c
@@ -0,0 +1,180 @@
1/*
2 * arch/arm/mach-omap/omap2/serial.c
3 *
4 * OMAP2 serial support.
5 *
6 * Copyright (C) 2005 Nokia Corporation
7 * Author: Paul Mundt <paul.mundt@nokia.com>
8 *
9 * Based off of arch/arm/mach-omap/omap1/serial.c
10 *
11 * This file is subject to the terms and conditions of the GNU General Public
12 * License. See the file "COPYING" in the main directory of this archive
13 * for more details.
14 */
15#include <linux/kernel.h>
16#include <linux/init.h>
17#include <linux/serial_8250.h>
18#include <linux/serial_reg.h>
19
20#include <asm/io.h>
21#include <asm/hardware/clock.h>
22
23#include <asm/arch/common.h>
24#include <asm/arch/board.h>
25
26static struct clk * uart1_ick = NULL;
27static struct clk * uart1_fck = NULL;
28static struct clk * uart2_ick = NULL;
29static struct clk * uart2_fck = NULL;
30static struct clk * uart3_ick = NULL;
31static struct clk * uart3_fck = NULL;
32
33static struct plat_serial8250_port serial_platform_data[] = {
34 {
35 .membase = (char *)IO_ADDRESS(OMAP_UART1_BASE),
36 .mapbase = (unsigned long)OMAP_UART1_BASE,
37 .irq = 72,
38 .flags = UPF_BOOT_AUTOCONF,
39 .iotype = UPIO_MEM,
40 .regshift = 2,
41 .uartclk = OMAP16XX_BASE_BAUD * 16,
42 }, {
43 .membase = (char *)IO_ADDRESS(OMAP_UART2_BASE),
44 .mapbase = (unsigned long)OMAP_UART2_BASE,
45 .irq = 73,
46 .flags = UPF_BOOT_AUTOCONF,
47 .iotype = UPIO_MEM,
48 .regshift = 2,
49 .uartclk = OMAP16XX_BASE_BAUD * 16,
50 }, {
51 .membase = (char *)IO_ADDRESS(OMAP_UART3_BASE),
52 .mapbase = (unsigned long)OMAP_UART3_BASE,
53 .irq = 74,
54 .flags = UPF_BOOT_AUTOCONF,
55 .iotype = UPIO_MEM,
56 .regshift = 2,
57 .uartclk = OMAP16XX_BASE_BAUD * 16,
58 }, {
59 .flags = 0
60 }
61};
62
63static inline unsigned int serial_read_reg(struct plat_serial8250_port *up,
64 int offset)
65{
66 offset <<= up->regshift;
67 return (unsigned int)__raw_readb(up->membase + offset);
68}
69
70static inline void serial_write_reg(struct plat_serial8250_port *p, int offset,
71 int value)
72{
73 offset <<= p->regshift;
74 __raw_writeb(value, (unsigned long)(p->membase + offset));
75}
76
77/*
78 * Internal UARTs need to be initialized for the 8250 autoconfig to work
79 * properly. Note that the TX watermark initialization may not be needed
80 * once the 8250.c watermark handling code is merged.
81 */
82static inline void __init omap_serial_reset(struct plat_serial8250_port *p)
83{
84 serial_write_reg(p, UART_OMAP_MDR1, 0x07);
85 serial_write_reg(p, UART_OMAP_SCR, 0x08);
86 serial_write_reg(p, UART_OMAP_MDR1, 0x00);
87 serial_write_reg(p, UART_OMAP_SYSC, 0x01);
88}
89
90void __init omap_serial_init()
91{
92 int i;
93 const struct omap_uart_config *info;
94
95 /*
96 * Make sure the serial ports are muxed on at this point.
97 * You have to mux them off in device drivers later on
98 * if not needed.
99 */
100
101 info = omap_get_config(OMAP_TAG_UART,
102 struct omap_uart_config);
103
104 if (info == NULL)
105 return;
106
107 for (i = 0; i < OMAP_MAX_NR_PORTS; i++) {
108 struct plat_serial8250_port *p = serial_platform_data + i;
109
110 if (!(info->enabled_uarts & (1 << i))) {
111 p->membase = 0;
112 p->mapbase = 0;
113 continue;
114 }
115
116 switch (i) {
117 case 0:
118 uart1_ick = clk_get(NULL, "uart1_ick");
119 if (IS_ERR(uart1_ick))
120 printk("Could not get uart1_ick\n");
121 else {
122 clk_use(uart1_ick);
123 }
124
125 uart1_fck = clk_get(NULL, "uart1_fck");
126 if (IS_ERR(uart1_fck))
127 printk("Could not get uart1_fck\n");
128 else {
129 clk_use(uart1_fck);
130 }
131 break;
132 case 1:
133 uart2_ick = clk_get(NULL, "uart2_ick");
134 if (IS_ERR(uart2_ick))
135 printk("Could not get uart2_ick\n");
136 else {
137 clk_use(uart2_ick);
138 }
139
140 uart2_fck = clk_get(NULL, "uart2_fck");
141 if (IS_ERR(uart2_fck))
142 printk("Could not get uart2_fck\n");
143 else {
144 clk_use(uart2_fck);
145 }
146 break;
147 case 2:
148 uart3_ick = clk_get(NULL, "uart3_ick");
149 if (IS_ERR(uart3_ick))
150 printk("Could not get uart3_ick\n");
151 else {
152 clk_use(uart3_ick);
153 }
154
155 uart3_fck = clk_get(NULL, "uart3_fck");
156 if (IS_ERR(uart3_fck))
157 printk("Could not get uart3_fck\n");
158 else {
159 clk_use(uart3_fck);
160 }
161 break;
162 }
163
164 omap_serial_reset(p);
165 }
166}
167
168static struct platform_device serial_device = {
169 .name = "serial8250",
170 .id = 0,
171 .dev = {
172 .platform_data = serial_platform_data,
173 },
174};
175
176static int __init omap_init(void)
177{
178 return platform_device_register(&serial_device);
179}
180arch_initcall(omap_init);
diff --git a/arch/arm/mach-omap2/sram-fn.S b/arch/arm/mach-omap2/sram-fn.S
new file mode 100644
index 000000000000..2a869e203342
--- /dev/null
+++ b/arch/arm/mach-omap2/sram-fn.S
@@ -0,0 +1,333 @@
1/*
2 * linux/arch/arm/mach-omap1/sram.S
3 *
4 * Omap2 specific functions that need to be run in internal SRAM
5 *
6 * (C) Copyright 2004
7 * Texas Instruments, <www.ti.com>
8 * Richard Woodruff <r-woodruff2@ti.com>
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR /PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
23 * MA 02111-1307 USA
24 */
25#include <linux/config.h>
26#include <linux/linkage.h>
27#include <asm/assembler.h>
28#include <asm/arch/io.h>
29#include <asm/hardware.h>
30
31#include <asm/arch/prcm.h>
32
33#define TIMER_32KSYNCT_CR_V IO_ADDRESS(OMAP24XX_32KSYNCT_BASE + 0x010)
34
35#define CM_CLKSEL2_PLL_V IO_ADDRESS(OMAP24XX_PRCM_BASE + 0x544)
36#define PRCM_VOLTCTRL_V IO_ADDRESS(OMAP24XX_PRCM_BASE + 0x050)
37#define PRCM_CLKCFG_CTRL_V IO_ADDRESS(OMAP24XX_PRCM_BASE + 0x080)
38#define CM_CLKEN_PLL_V IO_ADDRESS(OMAP24XX_PRCM_BASE + 0x500)
39#define CM_IDLEST_CKGEN_V IO_ADDRESS(OMAP24XX_PRCM_BASE + 0x520)
40#define CM_CLKSEL1_PLL_V IO_ADDRESS(OMAP24XX_PRCM_BASE + 0x540)
41
42#define SDRC_DLLA_CTRL_V IO_ADDRESS(OMAP24XX_SDRC_BASE + 0x060)
43#define SDRC_RFR_CTRL_V IO_ADDRESS(OMAP24XX_SDRC_BASE + 0x0a4)
44
45 .text
46
47ENTRY(sram_ddr_init)
48 stmfd sp!, {r0 - r12, lr} @ save registers on stack
49
50 mov r12, r2 @ capture CS1 vs CS0
51 mov r8, r3 @ capture force parameter
52
53 /* frequency shift down */
54 ldr r2, cm_clksel2_pll @ get address of dpllout reg
55 mov r3, #0x1 @ value for 1x operation
56 str r3, [r2] @ go to L1-freq operation
57
58 /* voltage shift down */
59 mov r9, #0x1 @ set up for L1 voltage call
60 bl voltage_shift @ go drop voltage
61
62 /* dll lock mode */
63 ldr r11, sdrc_dlla_ctrl @ addr of dlla ctrl
64 ldr r10, [r11] @ get current val
65 cmp r12, #0x1 @ cs1 base (2422 es2.05/1)
66 addeq r11, r11, #0x8 @ if cs1 base, move to DLLB
67 mvn r9, #0x4 @ mask to get clear bit2
68 and r10, r10, r9 @ clear bit2 for lock mode.
69 orr r10, r10, #0x8 @ make sure DLL on (es2 bit pos)
70 orr r10, r10, #0x2 @ 90 degree phase for all below 133Mhz
71 str r10, [r11] @ commit to DLLA_CTRL
72 bl i_dll_wait @ wait for dll to lock
73
74 /* get dll value */
75 add r11, r11, #0x4 @ get addr of status reg
76 ldr r10, [r11] @ get locked value
77
78 /* voltage shift up */
79 mov r9, #0x0 @ shift back to L0-voltage
80 bl voltage_shift @ go raise voltage
81
82 /* frequency shift up */
83 mov r3, #0x2 @ value for 2x operation
84 str r3, [r2] @ go to L0-freq operation
85
86 /* reset entry mode for dllctrl */
87 sub r11, r11, #0x4 @ move from status to ctrl
88 cmp r12, #0x1 @ normalize if cs1 based
89 subeq r11, r11, #0x8 @ possibly back to DLLA
90 cmp r8, #0x1 @ if forced unlock exit
91 orreq r1, r1, #0x4 @ make sure exit with unlocked value
92 str r1, [r11] @ restore DLLA_CTRL high value
93 add r11, r11, #0x8 @ move to DLLB_CTRL addr
94 str r1, [r11] @ set value DLLB_CTRL
95 bl i_dll_wait @ wait for possible lock
96
97 /* set up for return, DDR should be good */
98 str r10, [r0] @ write dll_status and return counter
99 ldmfd sp!, {r0 - r12, pc} @ restore regs and return
100
101 /* ensure the DLL has relocked */
102i_dll_wait:
103 mov r4, #0x800 @ delay DLL relock, min 0x400 L3 clocks
104i_dll_delay:
105 subs r4, r4, #0x1
106 bne i_dll_delay
107 mov pc, lr
108
109 /*
110 * shift up or down voltage, use R9 as input to tell level.
111 * wait for it to finish, use 32k sync counter, 1tick=31uS.
112 */
113voltage_shift:
114 ldr r4, prcm_voltctrl @ get addr of volt ctrl.
115 ldr r5, [r4] @ get value.
116 ldr r6, prcm_mask_val @ get value of mask
117 and r5, r5, r6 @ apply mask to clear bits
118 orr r5, r5, r9 @ bulld value for L0/L1-volt operation.
119 str r5, [r4] @ set up for change.
120 mov r3, #0x4000 @ get val for force
121 orr r5, r5, r3 @ build value for force
122 str r5, [r4] @ Force transition to L1
123
124 ldr r3, timer_32ksynct_cr @ get addr of counter
125 ldr r5, [r3] @ get value
126 add r5, r5, #0x3 @ give it at most 93uS
127volt_delay:
128 ldr r7, [r3] @ get timer value
129 cmp r5, r7 @ time up?
130 bhi volt_delay @ not yet->branch
131 mov pc, lr @ back to caller.
132
133/* relative load constants */
134cm_clksel2_pll:
135 .word CM_CLKSEL2_PLL_V
136sdrc_dlla_ctrl:
137 .word SDRC_DLLA_CTRL_V
138prcm_voltctrl:
139 .word PRCM_VOLTCTRL_V
140prcm_mask_val:
141 .word 0xFFFF3FFC
142timer_32ksynct_cr:
143 .word TIMER_32KSYNCT_CR_V
144ENTRY(sram_ddr_init_sz)
145 .word . - sram_ddr_init
146
147/*
148 * Reprograms memory timings.
149 * r0 = [PRCM_FULL | PRCM_HALF] r1 = SDRC_DLLA_CTRL value r2 = [DDR | SDR]
150 * PRCM_FULL = 2, PRCM_HALF = 1, DDR = 1, SDR = 0
151 */
152ENTRY(sram_reprogram_sdrc)
153 stmfd sp!, {r0 - r10, lr} @ save registers on stack
154 mov r3, #0x0 @ clear for mrc call
155 mcr p15, 0, r3, c7, c10, 4 @ memory barrier, finish ARM SDR/DDR
156 nop
157 nop
158 ldr r6, ddr_sdrc_rfr_ctrl @ get addr of refresh reg
159 ldr r5, [r6] @ get value
160 mov r5, r5, lsr #8 @ isolate rfr field and drop burst
161
162 cmp r0, #0x1 @ going to half speed?
163 movne r9, #0x0 @ if up set flag up for pre up, hi volt
164
165 blne voltage_shift_c @ adjust voltage
166
167 cmp r0, #0x1 @ going to half speed (post branch link)
168 moveq r5, r5, lsr #1 @ divide by 2 if to half
169 movne r5, r5, lsl #1 @ mult by 2 if to full
170 mov r5, r5, lsl #8 @ put rfr field back into place
171 add r5, r5, #0x1 @ turn on burst of 1
172 ldr r4, ddr_cm_clksel2_pll @ get address of out reg
173 ldr r3, [r4] @ get curr value
174 orr r3, r3, #0x3
175 bic r3, r3, #0x3 @ clear lower bits
176 orr r3, r3, r0 @ new state value
177 str r3, [r4] @ set new state (pll/x, x=1 or 2)
178 nop
179 nop
180
181 moveq r9, #0x1 @ if speed down, post down, drop volt
182 bleq voltage_shift_c
183
184 mcr p15, 0, r3, c7, c10, 4 @ memory barrier
185 str r5, [r6] @ set new RFR_1 value
186 add r6, r6, #0x30 @ get RFR_2 addr
187 str r5, [r6] @ set RFR_2
188 nop
189 cmp r2, #0x1 @ (SDR or DDR) do we need to adjust DLL
190 bne freq_out @ leave if SDR, no DLL function
191
192 /* With DDR, we need to take care of the DLL for the frequency change */
193 ldr r2, ddr_sdrc_dlla_ctrl @ addr of dlla ctrl
194 str r1, [r2] @ write out new SDRC_DLLA_CTRL
195 add r2, r2, #0x8 @ addr to SDRC_DLLB_CTRL
196 str r1, [r2] @ commit to SDRC_DLLB_CTRL
197 mov r1, #0x2000 @ wait DLL relock, min 0x400 L3 clocks
198dll_wait:
199 subs r1, r1, #0x1
200 bne dll_wait
201freq_out:
202 ldmfd sp!, {r0 - r10, pc} @ restore regs and return
203
204 /*
205 * shift up or down voltage, use R9 as input to tell level.
206 * wait for it to finish, use 32k sync counter, 1tick=31uS.
207 */
208voltage_shift_c:
209 ldr r10, ddr_prcm_voltctrl @ get addr of volt ctrl
210 ldr r8, [r10] @ get value
211 ldr r7, ddr_prcm_mask_val @ get value of mask
212 and r8, r8, r7 @ apply mask to clear bits
213 orr r8, r8, r9 @ bulld value for L0/L1-volt operation.
214 str r8, [r10] @ set up for change.
215 mov r7, #0x4000 @ get val for force
216 orr r8, r8, r7 @ build value for force
217 str r8, [r10] @ Force transition to L1
218
219 ldr r10, ddr_timer_32ksynct @ get addr of counter
220 ldr r8, [r10] @ get value
221 add r8, r8, #0x2 @ give it at most 62uS (min 31+)
222volt_delay_c:
223 ldr r7, [r10] @ get timer value
224 cmp r8, r7 @ time up?
225 bhi volt_delay_c @ not yet->branch
226 mov pc, lr @ back to caller
227
228ddr_cm_clksel2_pll:
229 .word CM_CLKSEL2_PLL_V
230ddr_sdrc_dlla_ctrl:
231 .word SDRC_DLLA_CTRL_V
232ddr_sdrc_rfr_ctrl:
233 .word SDRC_RFR_CTRL_V
234ddr_prcm_voltctrl:
235 .word PRCM_VOLTCTRL_V
236ddr_prcm_mask_val:
237 .word 0xFFFF3FFC
238ddr_timer_32ksynct:
239 .word TIMER_32KSYNCT_CR_V
240
241ENTRY(sram_reprogram_sdrc_sz)
242 .word . - sram_reprogram_sdrc
243
244/*
245 * Set dividers and pll. Also recalculate DLL value for DDR and unlock mode.
246 */
247ENTRY(sram_set_prcm)
248 stmfd sp!, {r0-r12, lr} @ regs to stack
249 adr r4, pbegin @ addr of preload start
250 adr r8, pend @ addr of preload end
251 mcrr p15, 1, r8, r4, c12 @ preload into icache
252pbegin:
253 /* move into fast relock bypass */
254 ldr r8, pll_ctl @ get addr
255 ldr r5, [r8] @ get val
256 mvn r6, #0x3 @ clear mask
257 and r5, r5, r6 @ clear field
258 orr r7, r5, #0x2 @ fast relock val
259 str r7, [r8] @ go to fast relock
260 ldr r4, pll_stat @ addr of stat
261block:
262 /* wait for bypass */
263 ldr r8, [r4] @ stat value
264 and r8, r8, #0x3 @ mask for stat
265 cmp r8, #0x1 @ there yet
266 bne block @ loop if not
267
268 /* set new dpll dividers _after_ in bypass */
269 ldr r4, pll_div @ get addr
270 str r0, [r4] @ set dpll ctrl val
271
272 ldr r4, set_config @ get addr
273 mov r8, #1 @ valid cfg msk
274 str r8, [r4] @ make dividers take
275
276 mov r4, #100 @ dead spin a bit
277wait_a_bit:
278 subs r4, r4, #1 @ dec loop
279 bne wait_a_bit @ delay done?
280
281 /* check if staying in bypass */
282 cmp r2, #0x1 @ stay in bypass?
283 beq pend @ jump over dpll relock
284
285 /* relock DPLL with new vals */
286 ldr r5, pll_stat @ get addr
287 ldr r4, pll_ctl @ get addr
288 orr r8, r7, #0x3 @ val for lock dpll
289 str r8, [r4] @ set val
290 mov r0, #1000 @ dead spin a bit
291wait_more:
292 subs r0, r0, #1 @ dec loop
293 bne wait_more @ delay done?
294wait_lock:
295 ldr r8, [r5] @ get lock val
296 and r8, r8, #3 @ isolate field
297 cmp r8, #2 @ locked?
298 bne wait_lock @ wait if not
299pend:
300 /* update memory timings & briefly lock dll */
301 ldr r4, sdrc_rfr @ get addr
302 str r1, [r4] @ update refresh timing
303 ldr r11, dlla_ctrl @ get addr of DLLA ctrl
304 ldr r10, [r11] @ get current val
305 mvn r9, #0x4 @ mask to get clear bit2
306 and r10, r10, r9 @ clear bit2 for lock mode
307 orr r10, r10, #0x8 @ make sure DLL on (es2 bit pos)
308 str r10, [r11] @ commit to DLLA_CTRL
309 add r11, r11, #0x8 @ move to dllb
310 str r10, [r11] @ hit DLLB also
311
312 mov r4, #0x800 @ relock time (min 0x400 L3 clocks)
313wait_dll_lock:
314 subs r4, r4, #0x1
315 bne wait_dll_lock
316 nop
317 ldmfd sp!, {r0-r12, pc} @ restore regs and return
318
319set_config:
320 .word PRCM_CLKCFG_CTRL_V
321pll_ctl:
322 .word CM_CLKEN_PLL_V
323pll_stat:
324 .word CM_IDLEST_CKGEN_V
325pll_div:
326 .word CM_CLKSEL1_PLL_V
327sdrc_rfr:
328 .word SDRC_RFR_CTRL_V
329dlla_ctrl:
330 .word SDRC_DLLA_CTRL_V
331
332ENTRY(sram_set_prcm_sz)
333 .word . - sram_set_prcm
diff --git a/arch/arm/mach-omap2/timer-gp.c b/arch/arm/mach-omap2/timer-gp.c
new file mode 100644
index 000000000000..9ec11443200f
--- /dev/null
+++ b/arch/arm/mach-omap2/timer-gp.c
@@ -0,0 +1,126 @@
1/*
2 * linux/arch/arm/mach-omap2/timer-gp.c
3 *
4 * OMAP2 GP timer support.
5 *
6 * Copyright (C) 2005 Nokia Corporation
7 * Author: Paul Mundt <paul.mundt@nokia.com>
8 * Juha Yrjölä <juha.yrjola@nokia.com>
9 *
10 * Some parts based off of TI's 24xx code:
11 *
12 * Copyright (C) 2004 Texas Instruments, Inc.
13 *
14 * Roughly modelled after the OMAP1 MPU timer code.
15 *
16 * This file is subject to the terms and conditions of the GNU General Public
17 * License. See the file "COPYING" in the main directory of this archive
18 * for more details.
19 */
20#include <linux/init.h>
21#include <linux/time.h>
22#include <linux/interrupt.h>
23#include <linux/err.h>
24#include <asm/mach/time.h>
25#include <asm/delay.h>
26#include <asm/io.h>
27#include <asm/hardware/clock.h>
28
29#define OMAP2_GP_TIMER1_BASE 0x48028000
30#define OMAP2_GP_TIMER2_BASE 0x4802a000
31#define OMAP2_GP_TIMER3_BASE 0x48078000
32#define OMAP2_GP_TIMER4_BASE 0x4807a000
33
34#define GP_TIMER_TIDR 0x00
35#define GP_TIMER_TISR 0x18
36#define GP_TIMER_TIER 0x1c
37#define GP_TIMER_TCLR 0x24
38#define GP_TIMER_TCRR 0x28
39#define GP_TIMER_TLDR 0x2c
40#define GP_TIMER_TSICR 0x40
41
42#define OS_TIMER_NR 1 /* GP timer 2 */
43
44static unsigned long timer_base[] = {
45 IO_ADDRESS(OMAP2_GP_TIMER1_BASE),
46 IO_ADDRESS(OMAP2_GP_TIMER2_BASE),
47 IO_ADDRESS(OMAP2_GP_TIMER3_BASE),
48 IO_ADDRESS(OMAP2_GP_TIMER4_BASE),
49};
50
51static inline unsigned int timer_read_reg(int nr, unsigned int reg)
52{
53 return __raw_readl(timer_base[nr] + reg);
54}
55
56static inline void timer_write_reg(int nr, unsigned int reg, unsigned int val)
57{
58 __raw_writel(val, timer_base[nr] + reg);
59}
60
61/* Note that we always enable the clock prescale divider bit */
62static inline void omap2_gp_timer_start(int nr, unsigned long load_val)
63{
64 unsigned int tmp;
65
66 tmp = 0xffffffff - load_val;
67
68 timer_write_reg(nr, GP_TIMER_TLDR, tmp);
69 timer_write_reg(nr, GP_TIMER_TCRR, tmp);
70 timer_write_reg(nr, GP_TIMER_TIER, 1 << 1);
71 timer_write_reg(nr, GP_TIMER_TCLR, (1 << 5) | (1 << 1) | 1);
72}
73
74static irqreturn_t omap2_gp_timer_interrupt(int irq, void *dev_id,
75 struct pt_regs *regs)
76{
77 write_seqlock(&xtime_lock);
78
79 timer_write_reg(OS_TIMER_NR, GP_TIMER_TISR, 1 << 1);
80 timer_tick(regs);
81
82 write_sequnlock(&xtime_lock);
83
84 return IRQ_HANDLED;
85}
86
87static struct irqaction omap2_gp_timer_irq = {
88 .name = "gp timer",
89 .flags = SA_INTERRUPT,
90 .handler = omap2_gp_timer_interrupt,
91};
92
93static void __init omap2_gp_timer_init(void)
94{
95 struct clk * sys_ck;
96 u32 tick_period = 120000;
97 u32 l;
98
99 /* Reset clock and prescale value */
100 timer_write_reg(OS_TIMER_NR, GP_TIMER_TCLR, 0);
101
102 sys_ck = clk_get(NULL, "sys_ck");
103 if (IS_ERR(sys_ck))
104 printk(KERN_ERR "Could not get sys_ck\n");
105 else {
106 clk_use(sys_ck);
107 tick_period = clk_get_rate(sys_ck) / 100;
108 clk_put(sys_ck);
109 }
110
111 tick_period /= 2; /* Minimum prescale divider is 2 */
112 tick_period -= 1;
113
114 l = timer_read_reg(OS_TIMER_NR, GP_TIMER_TIDR);
115 printk(KERN_INFO "OMAP2 GP timer (HW version %d.%d)\n",
116 (l >> 4) & 0x0f, l & 0x0f);
117
118 setup_irq(38, &omap2_gp_timer_irq);
119
120 omap2_gp_timer_start(OS_TIMER_NR, tick_period);
121}
122
123struct sys_timer omap_timer = {
124 .init = omap2_gp_timer_init,
125};
126
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-07 22:00:27 -0500