aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-nomadik
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-nomadik')
-rw-r--r--arch/arm/mach-nomadik/Kconfig21
-rw-r--r--arch/arm/mach-nomadik/Makefile19
-rw-r--r--arch/arm/mach-nomadik/Makefile.boot4
-rw-r--r--arch/arm/mach-nomadik/board-nhk8815.c111
-rw-r--r--arch/arm/mach-nomadik/clock.c45
-rw-r--r--arch/arm/mach-nomadik/clock.h14
-rw-r--r--arch/arm/mach-nomadik/cpu-8815.c139
-rw-r--r--arch/arm/mach-nomadik/gpio.c396
-rw-r--r--arch/arm/mach-nomadik/i2c-8815nhk.c65
-rw-r--r--arch/arm/mach-nomadik/include/mach/clkdev.h7
-rw-r--r--arch/arm/mach-nomadik/include/mach/debug-macro.S22
-rw-r--r--arch/arm/mach-nomadik/include/mach/entry-macro.S43
-rw-r--r--arch/arm/mach-nomadik/include/mach/gpio.h71
-rw-r--r--arch/arm/mach-nomadik/include/mach/hardware.h90
-rw-r--r--arch/arm/mach-nomadik/include/mach/io.h22
-rw-r--r--arch/arm/mach-nomadik/include/mach/irqs.h82
-rw-r--r--arch/arm/mach-nomadik/include/mach/memory.h28
-rw-r--r--arch/arm/mach-nomadik/include/mach/mtu.h45
-rw-r--r--arch/arm/mach-nomadik/include/mach/setup.h22
-rw-r--r--arch/arm/mach-nomadik/include/mach/system.h45
-rw-r--r--arch/arm/mach-nomadik/include/mach/timex.h6
-rw-r--r--arch/arm/mach-nomadik/include/mach/uncompress.h63
-rw-r--r--arch/arm/mach-nomadik/include/mach/vmalloc.h2
-rw-r--r--arch/arm/mach-nomadik/timer.c164
24 files changed, 1526 insertions, 0 deletions
diff --git a/arch/arm/mach-nomadik/Kconfig b/arch/arm/mach-nomadik/Kconfig
new file mode 100644
index 000000000000..2a02b49c40f0
--- /dev/null
+++ b/arch/arm/mach-nomadik/Kconfig
@@ -0,0 +1,21 @@
1if ARCH_NOMADIK
2
3menu "Nomadik boards"
4
5config MACH_NOMADIK_8815NHK
6 bool "ST 8815 Nomadik Hardware Kit (evaluation board)"
7 select NOMADIK_8815
8
9endmenu
10
11config NOMADIK_8815
12 bool
13
14
15config I2C_BITBANG_8815NHK
16 tristate "Driver for bit-bang busses found on the 8815 NHK"
17 depends on I2C && MACH_NOMADIK_8815NHK
18 select I2C_ALGOBIT
19 default y
20
21endif
diff --git a/arch/arm/mach-nomadik/Makefile b/arch/arm/mach-nomadik/Makefile
new file mode 100644
index 000000000000..412040982a40
--- /dev/null
+++ b/arch/arm/mach-nomadik/Makefile
@@ -0,0 +1,19 @@
1#
2# Makefile for the linux kernel.
3#
4# Note! Dependencies are done automagically by 'make dep', which also
5# removes any old dependencies. DON'T put your own dependencies here
6# unless it's something special (ie not a .c file).
7
8# Object file lists.
9
10obj-y += clock.o timer.o gpio.o
11
12# Cpu revision
13obj-$(CONFIG_NOMADIK_8815) += cpu-8815.o
14
15# Specific board support
16obj-$(CONFIG_MACH_NOMADIK_8815NHK) += board-nhk8815.o
17
18# Nomadik extra devices
19obj-$(CONFIG_I2C_BITBANG_8815NHK) += i2c-8815nhk.o
diff --git a/arch/arm/mach-nomadik/Makefile.boot b/arch/arm/mach-nomadik/Makefile.boot
new file mode 100644
index 000000000000..c7e75acfe6c9
--- /dev/null
+++ b/arch/arm/mach-nomadik/Makefile.boot
@@ -0,0 +1,4 @@
1 zreladdr-y := 0x00008000
2params_phys-y := 0x00000100
3initrd_phys-y := 0x00800000
4
diff --git a/arch/arm/mach-nomadik/board-nhk8815.c b/arch/arm/mach-nomadik/board-nhk8815.c
new file mode 100644
index 000000000000..79bdea943eb4
--- /dev/null
+++ b/arch/arm/mach-nomadik/board-nhk8815.c
@@ -0,0 +1,111 @@
1/*
2 * linux/arch/arm/mach-nomadik/board-8815nhk.c
3 *
4 * Copyright (C) STMicroelectronics
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 * NHK15 board specifc driver definition
11 */
12#include <linux/types.h>
13#include <linux/kernel.h>
14#include <linux/init.h>
15#include <linux/platform_device.h>
16#include <linux/amba/bus.h>
17#include <linux/interrupt.h>
18#include <linux/gpio.h>
19#include <asm/mach-types.h>
20#include <asm/mach/arch.h>
21#include <asm/mach/irq.h>
22#include <mach/setup.h>
23#include "clock.h"
24
25#define __MEM_4K_RESOURCE(x) \
26 .res = {.start = (x), .end = (x) + SZ_4K - 1, .flags = IORESOURCE_MEM}
27
28static struct amba_device uart0_device = {
29 .dev = { .init_name = "uart0" },
30 __MEM_4K_RESOURCE(NOMADIK_UART0_BASE),
31 .irq = {IRQ_UART0, NO_IRQ},
32};
33
34static struct amba_device uart1_device = {
35 .dev = { .init_name = "uart1" },
36 __MEM_4K_RESOURCE(NOMADIK_UART1_BASE),
37 .irq = {IRQ_UART1, NO_IRQ},
38};
39
40static struct amba_device *amba_devs[] __initdata = {
41 &uart0_device,
42 &uart1_device,
43};
44
45/* We have a fixed clock alone, by now */
46static struct clk nhk8815_clk_48 = {
47 .rate = 48*1000*1000,
48};
49
50static struct resource nhk8815_eth_resources[] = {
51 {
52 .name = "smc91x-regs",
53 .start = 0x34000000 + 0x300,
54 .end = 0x34000000 + SZ_64K - 1,
55 .flags = IORESOURCE_MEM,
56 }, {
57 .start = NOMADIK_GPIO_TO_IRQ(115),
58 .end = NOMADIK_GPIO_TO_IRQ(115),
59 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
60 }
61};
62
63static struct platform_device nhk8815_eth_device = {
64 .name = "smc91x",
65 .resource = nhk8815_eth_resources,
66 .num_resources = ARRAY_SIZE(nhk8815_eth_resources),
67};
68
69static int __init nhk8815_eth_init(void)
70{
71 int gpio_nr = 115; /* hardwired in the board */
72 int err;
73
74 err = gpio_request(gpio_nr, "eth_irq");
75 if (!err) err = nmk_gpio_set_mode(gpio_nr, NMK_GPIO_ALT_GPIO);
76 if (!err) err = gpio_direction_input(gpio_nr);
77 if (err)
78 pr_err("Error %i in %s\n", err, __func__);
79 return err;
80}
81device_initcall(nhk8815_eth_init);
82
83static struct platform_device *nhk8815_platform_devices[] __initdata = {
84 &nhk8815_eth_device,
85 /* will add more devices */
86};
87
88static void __init nhk8815_platform_init(void)
89{
90 int i;
91
92 cpu8815_platform_init();
93 platform_add_devices(nhk8815_platform_devices,
94 ARRAY_SIZE(nhk8815_platform_devices));
95
96 for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
97 nmdk_clk_create(&nhk8815_clk_48, amba_devs[i]->dev.init_name);
98 amba_device_register(amba_devs[i], &iomem_resource);
99 }
100}
101
102MACHINE_START(NOMADIK, "NHK8815")
103 /* Maintainer: ST MicroElectronics */
104 .phys_io = NOMADIK_UART0_BASE,
105 .io_pg_offst = (IO_ADDRESS(NOMADIK_UART0_BASE) >> 18) & 0xfffc,
106 .boot_params = 0x100,
107 .map_io = cpu8815_map_io,
108 .init_irq = cpu8815_init_irq,
109 .timer = &nomadik_timer,
110 .init_machine = nhk8815_platform_init,
111MACHINE_END
diff --git a/arch/arm/mach-nomadik/clock.c b/arch/arm/mach-nomadik/clock.c
new file mode 100644
index 000000000000..9f92502a0083
--- /dev/null
+++ b/arch/arm/mach-nomadik/clock.c
@@ -0,0 +1,45 @@
1/*
2 * linux/arch/arm/mach-nomadik/clock.c
3 *
4 * Copyright (C) 2009 Alessandro Rubini
5 */
6#include <linux/kernel.h>
7#include <linux/module.h>
8#include <linux/errno.h>
9#include <linux/clk.h>
10#include <asm/clkdev.h>
11#include "clock.h"
12
13/*
14 * The nomadik board uses generic clocks, but the serial pl011 file
15 * calls clk_enable(), clk_disable(), clk_get_rate(), so we provide them
16 */
17unsigned long clk_get_rate(struct clk *clk)
18{
19 return clk->rate;
20}
21EXPORT_SYMBOL(clk_get_rate);
22
23/* enable and disable do nothing */
24int clk_enable(struct clk *clk)
25{
26 return 0;
27}
28EXPORT_SYMBOL(clk_enable);
29
30void clk_disable(struct clk *clk)
31{
32}
33EXPORT_SYMBOL(clk_disable);
34
35/* Create a clock structure with the given name */
36int nmdk_clk_create(struct clk *clk, const char *dev_id)
37{
38 struct clk_lookup *clkdev;
39
40 clkdev = clkdev_alloc(clk, NULL, dev_id);
41 if (!clkdev)
42 return -ENOMEM;
43 clkdev_add(clkdev);
44 return 0;
45}
diff --git a/arch/arm/mach-nomadik/clock.h b/arch/arm/mach-nomadik/clock.h
new file mode 100644
index 000000000000..235faec7f627
--- /dev/null
+++ b/arch/arm/mach-nomadik/clock.h
@@ -0,0 +1,14 @@
1
2/*
3 * linux/arch/arm/mach-nomadik/clock.h
4 *
5 * Copyright (C) 2009 Alessandro Rubini
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11struct clk {
12 unsigned long rate;
13};
14extern int nmdk_clk_create(struct clk *clk, const char *dev_id);
diff --git a/arch/arm/mach-nomadik/cpu-8815.c b/arch/arm/mach-nomadik/cpu-8815.c
new file mode 100644
index 000000000000..f93c59634191
--- /dev/null
+++ b/arch/arm/mach-nomadik/cpu-8815.c
@@ -0,0 +1,139 @@
1/*
2 * Copyright STMicroelectronics, 2007.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 */
18
19#include <linux/types.h>
20#include <linux/init.h>
21#include <linux/device.h>
22#include <linux/amba/bus.h>
23#include <linux/gpio.h>
24
25#include <mach/hardware.h>
26#include <mach/irqs.h>
27#include <asm/mach/map.h>
28#include <asm/hardware/vic.h>
29
30#include <asm/cacheflush.h>
31#include <asm/hardware/cache-l2x0.h>
32
33/* The 8815 has 4 GPIO blocks, let's register them immediately */
34static struct nmk_gpio_platform_data cpu8815_gpio[] = {
35 {
36 .name = "GPIO-0-31",
37 .first_gpio = 0,
38 .first_irq = NOMADIK_GPIO_TO_IRQ(0),
39 .parent_irq = IRQ_GPIO0,
40 }, {
41 .name = "GPIO-32-63",
42 .first_gpio = 32,
43 .first_irq = NOMADIK_GPIO_TO_IRQ(32),
44 .parent_irq = IRQ_GPIO1,
45 }, {
46 .name = "GPIO-64-95",
47 .first_gpio = 64,
48 .first_irq = NOMADIK_GPIO_TO_IRQ(64),
49 .parent_irq = IRQ_GPIO2,
50 }, {
51 .name = "GPIO-96-127", /* 124..127 not routed to pin */
52 .first_gpio = 96,
53 .first_irq = NOMADIK_GPIO_TO_IRQ(96),
54 .parent_irq = IRQ_GPIO3,
55 }
56};
57
58#define __MEM_4K_RESOURCE(x) \
59 .res = {.start = (x), .end = (x) + SZ_4K - 1, .flags = IORESOURCE_MEM}
60
61static struct amba_device cpu8815_amba_gpio[] = {
62 {
63 .dev = {
64 .init_name = "gpio0",
65 .platform_data = cpu8815_gpio + 0,
66 },
67 __MEM_4K_RESOURCE(NOMADIK_GPIO0_BASE),
68 }, {
69 .dev = {
70 .init_name = "gpio1",
71 .platform_data = cpu8815_gpio + 1,
72 },
73 __MEM_4K_RESOURCE(NOMADIK_GPIO1_BASE),
74 }, {
75 .dev = {
76 .init_name = "gpio2",
77 .platform_data = cpu8815_gpio + 2,
78 },
79 __MEM_4K_RESOURCE(NOMADIK_GPIO2_BASE),
80 }, {
81 .dev = {
82 .init_name = "gpio3",
83 .platform_data = cpu8815_gpio + 3,
84 },
85 __MEM_4K_RESOURCE(NOMADIK_GPIO3_BASE),
86 },
87};
88
89static struct amba_device *amba_devs[] __initdata = {
90 cpu8815_amba_gpio + 0,
91 cpu8815_amba_gpio + 1,
92 cpu8815_amba_gpio + 2,
93 cpu8815_amba_gpio + 3,
94};
95
96static int __init cpu8815_init(void)
97{
98 int i;
99
100 for (i = 0; i < ARRAY_SIZE(amba_devs); i++)
101 amba_device_register(amba_devs[i], &iomem_resource);
102 return 0;
103}
104arch_initcall(cpu8815_init);
105
106/* All SoC devices live in the same area (see hardware.h) */
107static struct map_desc nomadik_io_desc[] __initdata = {
108 {
109 .virtual = NOMADIK_IO_VIRTUAL,
110 .pfn = __phys_to_pfn(NOMADIK_IO_PHYSICAL),
111 .length = NOMADIK_IO_SIZE,
112 .type = MT_DEVICE,
113 }
114 /* static ram and secured ram may be added later */
115};
116
117void __init cpu8815_map_io(void)
118{
119 iotable_init(nomadik_io_desc, ARRAY_SIZE(nomadik_io_desc));
120}
121
122void __init cpu8815_init_irq(void)
123{
124 /* This modified VIC cell has two register blocks, at 0 and 0x20 */
125 vic_init(io_p2v(NOMADIK_IC_BASE + 0x00), IRQ_VIC_START + 0, ~0, 0);
126 vic_init(io_p2v(NOMADIK_IC_BASE + 0x20), IRQ_VIC_START + 32, ~0, 0);
127}
128
129/*
130 * This function is called from the board init ("init_machine").
131 */
132 void __init cpu8815_platform_init(void)
133{
134#ifdef CONFIG_CACHE_L2X0
135 /* At full speed latency must be >=2, so 0x249 in low bits */
136 l2x0_init(io_p2v(NOMADIK_L2CC_BASE), 0x00730249, 0xfe000fff);
137#endif
138 return;
139}
diff --git a/arch/arm/mach-nomadik/gpio.c b/arch/arm/mach-nomadik/gpio.c
new file mode 100644
index 000000000000..9a09b2791e03
--- /dev/null
+++ b/arch/arm/mach-nomadik/gpio.c
@@ -0,0 +1,396 @@
1/*
2 * Generic GPIO driver for logic cells found in the Nomadik SoC
3 *
4 * Copyright (C) 2008,2009 STMicroelectronics
5 * Copyright (C) 2009 Alessandro Rubini <rubini@unipv.it>
6 * Rewritten based on work by Prafulla WADASKAR <prafulla.wadaskar@st.com>
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#include <linux/kernel.h>
13#include <linux/module.h>
14#include <linux/init.h>
15#include <linux/device.h>
16#include <linux/amba/bus.h>
17#include <linux/io.h>
18#include <linux/gpio.h>
19#include <linux/spinlock.h>
20#include <linux/interrupt.h>
21#include <linux/irq.h>
22
23#include <mach/hardware.h>
24#include <mach/gpio.h>
25
26/*
27 * The GPIO module in the Nomadik family of Systems-on-Chip is an
28 * AMBA device, managing 32 pins and alternate functions. The logic block
29 * is currently only used in the Nomadik.
30 *
31 * Symbols in this file are called "nmk_gpio" for "nomadik gpio"
32 */
33
34#define NMK_GPIO_PER_CHIP 32
35struct nmk_gpio_chip {
36 struct gpio_chip chip;
37 void __iomem *addr;
38 unsigned int parent_irq;
39 spinlock_t *lock;
40 /* Keep track of configured edges */
41 u32 edge_rising;
42 u32 edge_falling;
43};
44
45/* Mode functions */
46int nmk_gpio_set_mode(int gpio, int gpio_mode)
47{
48 struct nmk_gpio_chip *nmk_chip;
49 unsigned long flags;
50 u32 afunc, bfunc, bit;
51
52 nmk_chip = get_irq_chip_data(NOMADIK_GPIO_TO_IRQ(gpio));
53 if (!nmk_chip)
54 return -EINVAL;
55
56 bit = 1 << (gpio - nmk_chip->chip.base);
57
58 spin_lock_irqsave(&nmk_chip->lock, flags);
59 afunc = readl(nmk_chip->addr + NMK_GPIO_AFSLA) & ~bit;
60 bfunc = readl(nmk_chip->addr + NMK_GPIO_AFSLB) & ~bit;
61 if (gpio_mode & NMK_GPIO_ALT_A)
62 afunc |= bit;
63 if (gpio_mode & NMK_GPIO_ALT_B)
64 bfunc |= bit;
65 writel(afunc, nmk_chip->addr + NMK_GPIO_AFSLA);
66 writel(bfunc, nmk_chip->addr + NMK_GPIO_AFSLB);
67 spin_unlock_irqrestore(&nmk_chip->lock, flags);
68
69 return 0;
70}
71EXPORT_SYMBOL(nmk_gpio_set_mode);
72
73int nmk_gpio_get_mode(int gpio)
74{
75 struct nmk_gpio_chip *nmk_chip;
76 u32 afunc, bfunc, bit;
77
78 nmk_chip = get_irq_chip_data(NOMADIK_GPIO_TO_IRQ(gpio));
79 if (!nmk_chip)
80 return -EINVAL;
81
82 bit = 1 << (gpio - nmk_chip->chip.base);
83
84 afunc = readl(nmk_chip->addr + NMK_GPIO_AFSLA) & bit;
85 bfunc = readl(nmk_chip->addr + NMK_GPIO_AFSLB) & bit;
86
87 return (afunc ? NMK_GPIO_ALT_A : 0) | (bfunc ? NMK_GPIO_ALT_B : 0);
88}
89EXPORT_SYMBOL(nmk_gpio_get_mode);
90
91
92/* IRQ functions */
93static inline int nmk_gpio_get_bitmask(int gpio)
94{
95 return 1 << (gpio % 32);
96}
97
98static void nmk_gpio_irq_ack(unsigned int irq)
99{
100 int gpio;
101 struct nmk_gpio_chip *nmk_chip;
102
103 gpio = NOMADIK_IRQ_TO_GPIO(irq);
104 nmk_chip = get_irq_chip_data(irq);
105 if (!nmk_chip)
106 return;
107 writel(nmk_gpio_get_bitmask(gpio), nmk_chip->addr + NMK_GPIO_IC);
108}
109
110static void nmk_gpio_irq_mask(unsigned int irq)
111{
112 int gpio;
113 struct nmk_gpio_chip *nmk_chip;
114 unsigned long flags;
115 u32 bitmask, reg;
116
117 gpio = NOMADIK_IRQ_TO_GPIO(irq);
118 nmk_chip = get_irq_chip_data(irq);
119 bitmask = nmk_gpio_get_bitmask(gpio);
120 if (!nmk_chip)
121 return;
122
123 /* we must individually clear the two edges */
124 spin_lock_irqsave(&nmk_chip->lock, flags);
125 if (nmk_chip->edge_rising & bitmask) {
126 reg = readl(nmk_chip->addr + NMK_GPIO_RWIMSC);
127 reg &= ~bitmask;
128 writel(reg, nmk_chip->addr + NMK_GPIO_RWIMSC);
129 }
130 if (nmk_chip->edge_falling & bitmask) {
131 reg = readl(nmk_chip->addr + NMK_GPIO_FWIMSC);
132 reg &= ~bitmask;
133 writel(reg, nmk_chip->addr + NMK_GPIO_FWIMSC);
134 }
135 spin_unlock_irqrestore(&nmk_chip->lock, flags);
136};
137
138static void nmk_gpio_irq_unmask(unsigned int irq)
139{
140 int gpio;
141 struct nmk_gpio_chip *nmk_chip;
142 unsigned long flags;
143 u32 bitmask, reg;
144
145 gpio = NOMADIK_IRQ_TO_GPIO(irq);
146 nmk_chip = get_irq_chip_data(irq);
147 bitmask = nmk_gpio_get_bitmask(gpio);
148 if (!nmk_chip)
149 return;
150
151 /* we must individually set the two edges */
152 spin_lock_irqsave(&nmk_chip->lock, flags);
153 if (nmk_chip->edge_rising & bitmask) {
154 reg = readl(nmk_chip->addr + NMK_GPIO_RWIMSC);
155 reg |= bitmask;
156 writel(reg, nmk_chip->addr + NMK_GPIO_RWIMSC);
157 }
158 if (nmk_chip->edge_falling & bitmask) {
159 reg = readl(nmk_chip->addr + NMK_GPIO_FWIMSC);
160 reg |= bitmask;
161 writel(reg, nmk_chip->addr + NMK_GPIO_FWIMSC);
162 }
163 spin_unlock_irqrestore(&nmk_chip->lock, flags);
164}
165
166static int nmk_gpio_irq_set_type(unsigned int irq, unsigned int type)
167{
168 int gpio;
169 struct nmk_gpio_chip *nmk_chip;
170 unsigned long flags;
171 u32 bitmask;
172
173 gpio = NOMADIK_IRQ_TO_GPIO(irq);
174 nmk_chip = get_irq_chip_data(irq);
175 bitmask = nmk_gpio_get_bitmask(gpio);
176 if (!nmk_chip)
177 return -EINVAL;
178
179 if (type & IRQ_TYPE_LEVEL_HIGH)
180 return -EINVAL;
181 if (type & IRQ_TYPE_LEVEL_LOW)
182 return -EINVAL;
183
184 spin_lock_irqsave(&nmk_chip->lock, flags);
185
186 nmk_chip->edge_rising &= ~bitmask;
187 if (type & IRQ_TYPE_EDGE_RISING)
188 nmk_chip->edge_rising |= bitmask;
189 writel(nmk_chip->edge_rising, nmk_chip->addr + NMK_GPIO_RIMSC);
190
191 nmk_chip->edge_falling &= ~bitmask;
192 if (type & IRQ_TYPE_EDGE_FALLING)
193 nmk_chip->edge_falling |= bitmask;
194 writel(nmk_chip->edge_falling, nmk_chip->addr + NMK_GPIO_FIMSC);
195
196 spin_unlock_irqrestore(&nmk_chip->lock, flags);
197
198 nmk_gpio_irq_unmask(irq);
199
200 return 0;
201}
202
203static struct irq_chip nmk_gpio_irq_chip = {
204 .name = "Nomadik-GPIO",
205 .ack = nmk_gpio_irq_ack,
206 .mask = nmk_gpio_irq_mask,
207 .unmask = nmk_gpio_irq_unmask,
208 .set_type = nmk_gpio_irq_set_type,
209};
210
211static void nmk_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
212{
213 struct nmk_gpio_chip *nmk_chip;
214 struct irq_chip *host_chip;
215 unsigned int gpio_irq;
216 u32 pending;
217 unsigned int first_irq;
218
219 nmk_chip = get_irq_data(irq);
220 first_irq = NOMADIK_GPIO_TO_IRQ(nmk_chip->chip.base);
221 while ( (pending = readl(nmk_chip->addr + NMK_GPIO_IS)) ) {
222 gpio_irq = first_irq + __ffs(pending);
223 generic_handle_irq(gpio_irq);
224 }
225 if (0) {/* don't ack parent irq, as ack == disable */
226 host_chip = get_irq_chip(irq);
227 host_chip->ack(irq);
228 }
229}
230
231static int nmk_gpio_init_irq(struct nmk_gpio_chip *nmk_chip)
232{
233 unsigned int first_irq;
234 int i;
235
236 first_irq = NOMADIK_GPIO_TO_IRQ(nmk_chip->chip.base);
237 for (i = first_irq; i < first_irq + NMK_GPIO_PER_CHIP; i++) {
238 set_irq_chip(i, &nmk_gpio_irq_chip);
239 set_irq_handler(i, handle_edge_irq);
240 set_irq_flags(i, IRQF_VALID);
241 set_irq_chip_data(i, nmk_chip);
242 }
243 set_irq_chained_handler(nmk_chip->parent_irq, nmk_gpio_irq_handler);
244 set_irq_data(nmk_chip->parent_irq, nmk_chip);
245 return 0;
246}
247
248/* I/O Functions */
249static int nmk_gpio_make_input(struct gpio_chip *chip, unsigned offset)
250{
251 struct nmk_gpio_chip *nmk_chip =
252 container_of(chip, struct nmk_gpio_chip, chip);
253
254 writel(1 << offset, nmk_chip->addr + NMK_GPIO_DIRC);
255 return 0;
256}
257
258static int nmk_gpio_make_output(struct gpio_chip *chip, unsigned offset,
259 int val)
260{
261 struct nmk_gpio_chip *nmk_chip =
262 container_of(chip, struct nmk_gpio_chip, chip);
263
264 writel(1 << offset, nmk_chip->addr + NMK_GPIO_DIRS);
265 return 0;
266}
267
268static int nmk_gpio_get_input(struct gpio_chip *chip, unsigned offset)
269{
270 struct nmk_gpio_chip *nmk_chip =
271 container_of(chip, struct nmk_gpio_chip, chip);
272 u32 bit = 1 << offset;
273
274 return (readl(nmk_chip->addr + NMK_GPIO_DAT) & bit) != 0;
275}
276
277static void nmk_gpio_set_output(struct gpio_chip *chip, unsigned offset,
278 int val)
279{
280 struct nmk_gpio_chip *nmk_chip =
281 container_of(chip, struct nmk_gpio_chip, chip);
282 u32 bit = 1 << offset;
283
284 if (val)
285 writel(bit, nmk_chip->addr + NMK_GPIO_DATS);
286 else
287 writel(bit, nmk_chip->addr + NMK_GPIO_DATC);
288}
289
290/* This structure is replicated for each GPIO block allocated at probe time */
291static struct gpio_chip nmk_gpio_template = {
292 .direction_input = nmk_gpio_make_input,
293 .get = nmk_gpio_get_input,
294 .direction_output = nmk_gpio_make_output,
295 .set = nmk_gpio_set_output,
296 .ngpio = NMK_GPIO_PER_CHIP,
297 .can_sleep = 0,
298};
299
300static int __init nmk_gpio_probe(struct amba_device *dev, struct amba_id *id)
301{
302 struct nmk_gpio_platform_data *pdata;
303 struct nmk_gpio_chip *nmk_chip;
304 struct gpio_chip *chip;
305 int ret;
306
307 pdata = dev->dev.platform_data;
308 ret = amba_request_regions(dev, pdata->name);
309 if (ret)
310 return ret;
311
312 nmk_chip = kzalloc(sizeof(*nmk_chip), GFP_KERNEL);
313 if (!nmk_chip) {
314 ret = -ENOMEM;
315 goto out_amba;
316 }
317 /*
318 * The virt address in nmk_chip->addr is in the nomadik register space,
319 * so we can simply convert the resource address, without remapping
320 */
321 nmk_chip->addr = io_p2v(dev->res.start);
322 nmk_chip->chip = nmk_gpio_template;
323 nmk_chip->parent_irq = pdata->parent_irq;
324
325 chip = &nmk_chip->chip;
326 chip->base = pdata->first_gpio;
327 chip->label = pdata->name;
328 chip->dev = &dev->dev;
329 chip->owner = THIS_MODULE;
330
331 ret = gpiochip_add(&nmk_chip->chip);
332 if (ret)
333 goto out_free;
334
335 amba_set_drvdata(dev, nmk_chip);
336
337 nmk_gpio_init_irq(nmk_chip);
338
339 dev_info(&dev->dev, "Bits %i-%i at address %p\n",
340 nmk_chip->chip.base, nmk_chip->chip.base+31, nmk_chip->addr);
341 return 0;
342
343 out_free:
344 kfree(nmk_chip);
345 out_amba:
346 amba_release_regions(dev);
347 dev_err(&dev->dev, "Failure %i for GPIO %i-%i\n", ret,
348 pdata->first_gpio, pdata->first_gpio+31);
349 return ret;
350}
351
352static int nmk_gpio_remove(struct amba_device *dev)
353{
354 struct nmk_gpio_chip *nmk_chip;
355
356 nmk_chip = amba_get_drvdata(dev);
357 gpiochip_remove(&nmk_chip->chip);
358 kfree(nmk_chip);
359 amba_release_regions(dev);
360 return 0;
361}
362
363
364/* We have 0x1f080060 and 0x1f180060, accept both using the mask */
365static struct amba_id nmk_gpio_ids[] = {
366 {
367 .id = 0x1f080060,
368 .mask = 0xffefffff,
369 },
370 {0, 0},
371};
372
373static struct amba_driver nmk_gpio_driver = {
374 .drv = {
375 .owner = THIS_MODULE,
376 .name = "gpio",
377 },
378 .probe = nmk_gpio_probe,
379 .remove = nmk_gpio_remove,
380 .suspend = NULL, /* to be done */
381 .resume = NULL,
382 .id_table = nmk_gpio_ids,
383};
384
385static int __init nmk_gpio_init(void)
386{
387 return amba_driver_register(&nmk_gpio_driver);
388}
389
390arch_initcall(nmk_gpio_init);
391
392MODULE_AUTHOR("Prafulla WADASKAR and Alessandro Rubini");
393MODULE_DESCRIPTION("Nomadik GPIO Driver");
394MODULE_LICENSE("GPL");
395
396
diff --git a/arch/arm/mach-nomadik/i2c-8815nhk.c b/arch/arm/mach-nomadik/i2c-8815nhk.c
new file mode 100644
index 000000000000..abfe25a08d6b
--- /dev/null
+++ b/arch/arm/mach-nomadik/i2c-8815nhk.c
@@ -0,0 +1,65 @@
1#include <linux/module.h>
2#include <linux/init.h>
3#include <linux/i2c.h>
4#include <linux/i2c-algo-bit.h>
5#include <linux/i2c-gpio.h>
6#include <linux/gpio.h>
7#include <linux/platform_device.h>
8
9/*
10 * There are two busses in the 8815NHK.
11 * They could, in theory, be driven by the hardware component, but we
12 * use bit-bang through GPIO by now, to keep things simple
13 */
14
15static struct i2c_gpio_platform_data nhk8815_i2c_data0 = {
16 /* keep defaults for timeouts; pins are push-pull bidirectional */
17 .scl_pin = 62,
18 .sda_pin = 63,
19};
20
21static struct i2c_gpio_platform_data nhk8815_i2c_data1 = {
22 /* keep defaults for timeouts; pins are push-pull bidirectional */
23 .scl_pin = 53,
24 .sda_pin = 54,
25};
26
27/* first bus: GPIO XX and YY */
28static struct platform_device nhk8815_i2c_dev0 = {
29 .name = "i2c-gpio",
30 .id = 0,
31 .dev = {
32 .platform_data = &nhk8815_i2c_data0,
33 },
34};
35/* second bus: GPIO XX and YY */
36static struct platform_device nhk8815_i2c_dev1 = {
37 .name = "i2c-gpio",
38 .id = 1,
39 .dev = {
40 .platform_data = &nhk8815_i2c_data1,
41 },
42};
43
44static int __init nhk8815_i2c_init(void)
45{
46 nmk_gpio_set_mode(nhk8815_i2c_data0.scl_pin, NMK_GPIO_ALT_GPIO);
47 nmk_gpio_set_mode(nhk8815_i2c_data0.sda_pin, NMK_GPIO_ALT_GPIO);
48 platform_device_register(&nhk8815_i2c_dev0);
49
50 nmk_gpio_set_mode(nhk8815_i2c_data1.scl_pin, NMK_GPIO_ALT_GPIO);
51 nmk_gpio_set_mode(nhk8815_i2c_data1.sda_pin, NMK_GPIO_ALT_GPIO);
52 platform_device_register(&nhk8815_i2c_dev1);
53
54 return 0;
55}
56
57static void __exit nhk8815_i2c_exit(void)
58{
59 platform_device_unregister(&nhk8815_i2c_dev0);
60 platform_device_unregister(&nhk8815_i2c_dev1);
61 return;
62}
63
64module_init(nhk8815_i2c_init);
65module_exit(nhk8815_i2c_exit);
diff --git a/arch/arm/mach-nomadik/include/mach/clkdev.h b/arch/arm/mach-nomadik/include/mach/clkdev.h
new file mode 100644
index 000000000000..04b37a89801c
--- /dev/null
+++ b/arch/arm/mach-nomadik/include/mach/clkdev.h
@@ -0,0 +1,7 @@
1#ifndef __ASM_MACH_CLKDEV_H
2#define __ASM_MACH_CLKDEV_H
3
4#define __clk_get(clk) ({ 1; })
5#define __clk_put(clk) do { } while (0)
6
7#endif
diff --git a/arch/arm/mach-nomadik/include/mach/debug-macro.S b/arch/arm/mach-nomadik/include/mach/debug-macro.S
new file mode 100644
index 000000000000..e876990e1569
--- /dev/null
+++ b/arch/arm/mach-nomadik/include/mach/debug-macro.S
@@ -0,0 +1,22 @@
1/*
2 * Debugging macro include header
3 *
4 * Copyright (C) 1994-1999 Russell King
5 * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 *
11*/
12
13 .macro addruart,rx
14 mrc p15, 0, \rx, c1, c0
15 tst \rx, #1 @ MMU enabled?
16 moveq \rx, #0x10000000 @ physical base address
17 movne \rx, #0xf0000000 @ virtual base
18 add \rx, \rx, #0x00100000
19 add \rx, \rx, #0x000fb000
20 .endm
21
22#include <asm/hardware/debug-pl01x.S>
diff --git a/arch/arm/mach-nomadik/include/mach/entry-macro.S b/arch/arm/mach-nomadik/include/mach/entry-macro.S
new file mode 100644
index 000000000000..49f1aa3bb420
--- /dev/null
+++ b/arch/arm/mach-nomadik/include/mach/entry-macro.S
@@ -0,0 +1,43 @@
1/*
2 * Low-level IRQ helper macros for Nomadik platforms
3 *
4 * This file is licensed under the terms of the GNU General Public
5 * License version 2. This program is licensed "as is" without any
6 * warranty of any kind, whether express or implied.
7 */
8
9#include <mach/hardware.h>
10#include <mach/irqs.h>
11
12 .macro disable_fiq
13 .endm
14
15 .macro get_irqnr_preamble, base, tmp
16 ldr \base, =IO_ADDRESS(NOMADIK_IC_BASE)
17 .endm
18
19 .macro arch_ret_to_user, tmp1, tmp2
20 .endm
21
22 .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
23
24 /* This stanza gets the irq mask from one of two status registers */
25 mov \irqnr, #0
26 ldr \irqstat, [\base, #VIC_REG_IRQSR0] @ get masked status
27 cmp \irqstat, #0
28 bne 1001f
29 add \irqnr, \irqnr, #32
30 ldr \irqstat, [\base, #VIC_REG_IRQSR1] @ get masked status
31
321001: tst \irqstat, #15
33 bne 1002f
34 add \irqnr, \irqnr, #4
35 movs \irqstat, \irqstat, lsr #4
36 bne 1001b
371002: tst \irqstat, #1
38 bne 1003f
39 add \irqnr, \irqnr, #1
40 movs \irqstat, \irqstat, lsr #1
41 bne 1002b
421003: /* EQ will be set if no irqs pending */
43 .endm
diff --git a/arch/arm/mach-nomadik/include/mach/gpio.h b/arch/arm/mach-nomadik/include/mach/gpio.h
new file mode 100644
index 000000000000..61577c9f9a7d
--- /dev/null
+++ b/arch/arm/mach-nomadik/include/mach/gpio.h
@@ -0,0 +1,71 @@
1/*
2 * Structures and registers for GPIO access in the Nomadik SoC
3 *
4 * Copyright (C) 2008 STMicroelectronics
5 * Author: Prafulla WADASKAR <prafulla.wadaskar@st.com>
6 * Copyright (C) 2009 Alessandro Rubini <rubini@unipv.it>
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#ifndef __ASM_ARCH_GPIO_H
13#define __ASM_ARCH_GPIO_H
14
15#include <asm-generic/gpio.h>
16
17/*
18 * These currently cause a function call to happen, they may be optimized
19 * if needed by adding cpu-specific defines to identify blocks
20 * (see mach-pxa/include/mach/gpio.h as an example using GPLR etc)
21 */
22#define gpio_get_value __gpio_get_value
23#define gpio_set_value __gpio_set_value
24#define gpio_cansleep __gpio_cansleep
25#define gpio_to_irq __gpio_to_irq
26
27/*
28 * "nmk_gpio" and "NMK_GPIO" stand for "Nomadik GPIO", leaving
29 * the "gpio" namespace for generic and cross-machine functions
30 */
31
32/* Register in the logic block */
33#define NMK_GPIO_DAT 0x00
34#define NMK_GPIO_DATS 0x04
35#define NMK_GPIO_DATC 0x08
36#define NMK_GPIO_PDIS 0x0c
37#define NMK_GPIO_DIR 0x10
38#define NMK_GPIO_DIRS 0x14
39#define NMK_GPIO_DIRC 0x18
40#define NMK_GPIO_SLPC 0x1c
41#define NMK_GPIO_AFSLA 0x20
42#define NMK_GPIO_AFSLB 0x24
43
44#define NMK_GPIO_RIMSC 0x40
45#define NMK_GPIO_FIMSC 0x44
46#define NMK_GPIO_IS 0x48
47#define NMK_GPIO_IC 0x4c
48#define NMK_GPIO_RWIMSC 0x50
49#define NMK_GPIO_FWIMSC 0x54
50#define NMK_GPIO_WKS 0x58
51
52/* Alternate functions: function C is set in hw by setting both A and B */
53#define NMK_GPIO_ALT_GPIO 0
54#define NMK_GPIO_ALT_A 1
55#define NMK_GPIO_ALT_B 2
56#define NMK_GPIO_ALT_C (NMK_GPIO_ALT_A | NMK_GPIO_ALT_B)
57
58extern int nmk_gpio_set_mode(int gpio, int gpio_mode);
59extern int nmk_gpio_get_mode(int gpio);
60
61/*
62 * Platform data to register a block: only the initial gpio/irq number.
63 */
64struct nmk_gpio_platform_data {
65 char *name;
66 int first_gpio;
67 int first_irq;
68 int parent_irq;
69};
70
71#endif /* __ASM_ARCH_GPIO_H */
diff --git a/arch/arm/mach-nomadik/include/mach/hardware.h b/arch/arm/mach-nomadik/include/mach/hardware.h
new file mode 100644
index 000000000000..6316dba3bfc8
--- /dev/null
+++ b/arch/arm/mach-nomadik/include/mach/hardware.h
@@ -0,0 +1,90 @@
1/*
2 * This file contains the hardware definitions of the Nomadik.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * YOU should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 */
18#ifndef __ASM_ARCH_HARDWARE_H
19#define __ASM_ARCH_HARDWARE_H
20
21/* Nomadik registers live from 0x1000.0000 to 0x1023.0000 -- currently */
22#define NOMADIK_IO_VIRTUAL 0xF0000000 /* VA of IO */
23#define NOMADIK_IO_PHYSICAL 0x10000000 /* PA of IO */
24#define NOMADIK_IO_SIZE 0x00300000 /* 3MB for all regs */
25
26/* used in C code, so cast to proper type */
27#define io_p2v(x) ((void __iomem *)(x) \
28 - NOMADIK_IO_PHYSICAL + NOMADIK_IO_VIRTUAL)
29#define io_v2p(x) ((unsigned long)(x) \
30 - NOMADIK_IO_VIRTUAL + NOMADIK_IO_PHYSICAL)
31
32/* used in asm code, so no casts */
33#define IO_ADDRESS(x) ((x) - NOMADIK_IO_PHYSICAL + NOMADIK_IO_VIRTUAL)
34
35/*
36 * Base address defination for Nomadik Onchip Logic Block
37 */
38#define NOMADIK_FSMC_BASE 0x10100000 /* FSMC registers */
39#define NOMADIK_SDRAMC_BASE 0x10110000 /* SDRAM Controller */
40#define NOMADIK_CLCDC_BASE 0x10120000 /* CLCD Controller */
41#define NOMADIK_MDIF_BASE 0x10120000 /* MDIF */
42#define NOMADIK_DMA0_BASE 0x10130000 /* DMA0 Controller */
43#define NOMADIK_IC_BASE 0x10140000 /* Vectored Irq Controller */
44#define NOMADIK_DMA1_BASE 0x10150000 /* DMA1 Controller */
45#define NOMADIK_USB_BASE 0x10170000 /* USB-OTG conf reg base */
46#define NOMADIK_CRYP_BASE 0x10180000 /* Crypto processor */
47#define NOMADIK_SHA1_BASE 0x10190000 /* SHA-1 Processor */
48#define NOMADIK_XTI_BASE 0x101A0000 /* XTI */
49#define NOMADIK_RNG_BASE 0x101B0000 /* Random number generator */
50#define NOMADIK_SRC_BASE 0x101E0000 /* SRC base */
51#define NOMADIK_WDOG_BASE 0x101E1000 /* Watchdog */
52#define NOMADIK_MTU0_BASE 0x101E2000 /* Multiple Timer 0 */
53#define NOMADIK_MTU1_BASE 0x101E3000 /* Multiple Timer 1 */
54#define NOMADIK_GPIO0_BASE 0x101E4000 /* GPIO0 */
55#define NOMADIK_GPIO1_BASE 0x101E5000 /* GPIO1 */
56#define NOMADIK_GPIO2_BASE 0x101E6000 /* GPIO2 */
57#define NOMADIK_GPIO3_BASE 0x101E7000 /* GPIO3 */
58#define NOMADIK_RTC_BASE 0x101E8000 /* Real Time Clock base */
59#define NOMADIK_PMU_BASE 0x101E9000 /* Power Management Unit */
60#define NOMADIK_OWM_BASE 0x101EA000 /* One wire master */
61#define NOMADIK_SCR_BASE 0x101EF000 /* Secure Control registers */
62#define NOMADIK_MSP2_BASE 0x101F0000 /* MSP 2 interface */
63#define NOMADIK_MSP1_BASE 0x101F1000 /* MSP 1 interface */
64#define NOMADIK_UART2_BASE 0x101F2000 /* UART 2 interface */
65#define NOMADIK_SSIRx_BASE 0x101F3000 /* SSI 8-ch rx interface */
66#define NOMADIK_SSITx_BASE 0x101F4000 /* SSI 8-ch tx interface */
67#define NOMADIK_MSHC_BASE 0x101F5000 /* Memory Stick(Pro) Host */
68#define NOMADIK_SDI_BASE 0x101F6000 /* SD-card/MM-Card */
69#define NOMADIK_I2C1_BASE 0x101F7000 /* I2C1 interface */
70#define NOMADIK_I2C0_BASE 0x101F8000 /* I2C0 interface */
71#define NOMADIK_MSP0_BASE 0x101F9000 /* MSP 0 interface */
72#define NOMADIK_FIRDA_BASE 0x101FA000 /* FIrDA interface */
73#define NOMADIK_UART1_BASE 0x101FB000 /* UART 1 interface */
74#define NOMADIK_SSP_BASE 0x101FC000 /* SSP interface */
75#define NOMADIK_UART0_BASE 0x101FD000 /* UART 0 interface */
76#define NOMADIK_SGA_BASE 0x101FE000 /* SGA interface */
77#define NOMADIK_L2CC_BASE 0x10210000 /* L2 Cache controller */
78
79/* Other ranges, not for p2v/v2p */
80#define NOMADIK_BACKUP_RAM 0x80010000
81#define NOMADIK_EBROM 0x80000000 /* Embedded boot ROM */
82#define NOMADIK_HAMACV_DMEM_BASE 0xA0100000 /* HAMACV Data Memory Start */
83#define NOMADIK_HAMACV_DMEM_END 0xA01FFFFF /* HAMACV Data Memory End */
84#define NOMADIK_HAMACA_DMEM 0xA0200000 /* HAMACA Data Memory Space */
85
86#define NOMADIK_FSMC_VA IO_ADDRESS(NOMADIK_FSMC_BASE)
87#define NOMADIK_MTU0_VA IO_ADDRESS(NOMADIK_MTU0_BASE)
88#define NOMADIK_MTU1_VA IO_ADDRESS(NOMADIK_MTU1_BASE)
89
90#endif /* __ASM_ARCH_HARDWARE_H */
diff --git a/arch/arm/mach-nomadik/include/mach/io.h b/arch/arm/mach-nomadik/include/mach/io.h
new file mode 100644
index 000000000000..2e1eca1b8243
--- /dev/null
+++ b/arch/arm/mach-nomadik/include/mach/io.h
@@ -0,0 +1,22 @@
1/*
2 * arch/arm/mach-nomadik/include/mach/io.h (copied from mach-sa1100)
3 *
4 * Copyright (C) 1997-1999 Russell King
5 *
6 * Modifications:
7 * 06-12-1997 RMK Created.
8 * 07-04-1999 RMK Major cleanup
9 */
10#ifndef __ASM_ARM_ARCH_IO_H
11#define __ASM_ARM_ARCH_IO_H
12
13#define IO_SPACE_LIMIT 0xffffffff
14
15/*
16 * We don't actually have real ISA nor PCI buses, but there is so many
17 * drivers out there that might just work if we fake them...
18 */
19#define __io(a) __typesafe_io(a)
20#define __mem_pci(a) (a)
21
22#endif
diff --git a/arch/arm/mach-nomadik/include/mach/irqs.h b/arch/arm/mach-nomadik/include/mach/irqs.h
new file mode 100644
index 000000000000..8faabc560398
--- /dev/null
+++ b/arch/arm/mach-nomadik/include/mach/irqs.h
@@ -0,0 +1,82 @@
1/*
2 * mach-nomadik/include/mach/irqs.h
3 *
4 * Copyright (C) ST Microelectronics
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#ifndef __ASM_ARCH_IRQS_H
21#define __ASM_ARCH_IRQS_H
22
23#include <mach/hardware.h>
24
25#define IRQ_VIC_START 0 /* first VIC interrupt is 0 */
26
27/*
28 * Interrupt numbers generic for all Nomadik Chip cuts
29 */
30#define IRQ_WATCHDOG 0
31#define IRQ_SOFTINT 1
32#define IRQ_CRYPTO 2
33#define IRQ_OWM 3
34#define IRQ_MTU0 4
35#define IRQ_MTU1 5
36#define IRQ_GPIO0 6
37#define IRQ_GPIO1 7
38#define IRQ_GPIO2 8
39#define IRQ_GPIO3 9
40#define IRQ_RTC_RTT 10
41#define IRQ_SSP 11
42#define IRQ_UART0 12
43#define IRQ_DMA1 13
44#define IRQ_CLCD_MDIF 14
45#define IRQ_DMA0 15
46#define IRQ_PWRFAIL 16
47#define IRQ_UART1 17
48#define IRQ_FIRDA 18
49#define IRQ_MSP0 19
50#define IRQ_I2C0 20
51#define IRQ_I2C1 21
52#define IRQ_SDMMC 22
53#define IRQ_USBOTG 23
54#define IRQ_SVA_IT0 24
55#define IRQ_SVA_IT1 25
56#define IRQ_SAA_IT0 26
57#define IRQ_SAA_IT1 27
58#define IRQ_UART2 28
59#define IRQ_MSP2 31
60#define IRQ_L2CC 48
61#define IRQ_HPI 49
62#define IRQ_SKE 50
63#define IRQ_KP 51
64#define IRQ_MEMST 54
65#define IRQ_SGA_IT 58
66#define IRQ_USBM 60
67#define IRQ_MSP1 62
68
69#define NOMADIK_SOC_NR_IRQS 64
70
71/* After chip-specific IRQ numbers we have the GPIO ones */
72#define NOMADIK_NR_GPIO 128 /* last 4 not wired to pins */
73#define NOMADIK_GPIO_TO_IRQ(gpio) ((gpio) + NOMADIK_SOC_NR_IRQS)
74#define NOMADIK_IRQ_TO_GPIO(irq) ((irq) - NOMADIK_SOC_NR_IRQS)
75#define NR_IRQS NOMADIK_GPIO_TO_IRQ(NOMADIK_NR_GPIO)
76
77/* Following two are used by entry_macro.S, to access our dual-vic */
78#define VIC_REG_IRQSR0 0
79#define VIC_REG_IRQSR1 0x20
80
81#endif /* __ASM_ARCH_IRQS_H */
82
diff --git a/arch/arm/mach-nomadik/include/mach/memory.h b/arch/arm/mach-nomadik/include/mach/memory.h
new file mode 100644
index 000000000000..1e5689d98ecd
--- /dev/null
+++ b/arch/arm/mach-nomadik/include/mach/memory.h
@@ -0,0 +1,28 @@
1/*
2 * mach-nomadik/include/mach/memory.h
3 *
4 * Copyright (C) 1999 ARM Limited
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#ifndef __ASM_ARCH_MEMORY_H
21#define __ASM_ARCH_MEMORY_H
22
23/*
24 * Physical DRAM offset.
25 */
26#define PHYS_OFFSET UL(0x00000000)
27
28#endif
diff --git a/arch/arm/mach-nomadik/include/mach/mtu.h b/arch/arm/mach-nomadik/include/mach/mtu.h
new file mode 100644
index 000000000000..76da7f085330
--- /dev/null
+++ b/arch/arm/mach-nomadik/include/mach/mtu.h
@@ -0,0 +1,45 @@
1#ifndef __ASM_ARCH_MTU_H
2#define __ASM_ARCH_MTU_H
3
4/*
5 * The MTU device hosts four different counters, with 4 set of
6 * registers. These are register names.
7 */
8
9#define MTU_IMSC 0x00 /* Interrupt mask set/clear */
10#define MTU_RIS 0x04 /* Raw interrupt status */
11#define MTU_MIS 0x08 /* Masked interrupt status */
12#define MTU_ICR 0x0C /* Interrupt clear register */
13
14/* per-timer registers take 0..3 as argument */
15#define MTU_LR(x) (0x10 + 0x10 * (x) + 0x00) /* Load value */
16#define MTU_VAL(x) (0x10 + 0x10 * (x) + 0x04) /* Current value */
17#define MTU_CR(x) (0x10 + 0x10 * (x) + 0x08) /* Control reg */
18#define MTU_BGLR(x) (0x10 + 0x10 * (x) + 0x0c) /* At next overflow */
19
20/* bits for the control register */
21#define MTU_CRn_ENA 0x80
22#define MTU_CRn_PERIODIC 0x40 /* if 0 = free-running */
23#define MTU_CRn_PRESCALE_MASK 0x0c
24#define MTU_CRn_PRESCALE_1 0x00
25#define MTU_CRn_PRESCALE_16 0x04
26#define MTU_CRn_PRESCALE_256 0x08
27#define MTU_CRn_32BITS 0x02
28#define MTU_CRn_ONESHOT 0x01 /* if 0 = wraps reloading from BGLR*/
29
30/* Other registers are usual amba/primecell registers, currently not used */
31#define MTU_ITCR 0xff0
32#define MTU_ITOP 0xff4
33
34#define MTU_PERIPH_ID0 0xfe0
35#define MTU_PERIPH_ID1 0xfe4
36#define MTU_PERIPH_ID2 0xfe8
37#define MTU_PERIPH_ID3 0xfeC
38
39#define MTU_PCELL0 0xff0
40#define MTU_PCELL1 0xff4
41#define MTU_PCELL2 0xff8
42#define MTU_PCELL3 0xffC
43
44#endif /* __ASM_ARCH_MTU_H */
45
diff --git a/arch/arm/mach-nomadik/include/mach/setup.h b/arch/arm/mach-nomadik/include/mach/setup.h
new file mode 100644
index 000000000000..a4e468cf63da
--- /dev/null
+++ b/arch/arm/mach-nomadik/include/mach/setup.h
@@ -0,0 +1,22 @@
1
2/*
3 * These symbols are needed for board-specific files to call their
4 * own cpu-specific files
5 */
6
7#ifndef __ASM_ARCH_SETUP_H
8#define __ASM_ARCH_SETUP_H
9
10#include <asm/mach/time.h>
11#include <linux/init.h>
12
13#ifdef CONFIG_NOMADIK_8815
14
15extern void cpu8815_map_io(void);
16extern void cpu8815_platform_init(void);
17extern void cpu8815_init_irq(void);
18extern struct sys_timer nomadik_timer;
19
20#endif /* NOMADIK_8815 */
21
22#endif /* __ASM_ARCH_SETUP_H */
diff --git a/arch/arm/mach-nomadik/include/mach/system.h b/arch/arm/mach-nomadik/include/mach/system.h
new file mode 100644
index 000000000000..7119f688116e
--- /dev/null
+++ b/arch/arm/mach-nomadik/include/mach/system.h
@@ -0,0 +1,45 @@
1/*
2 * mach-nomadik/include/mach/system.h
3 *
4 * Copyright (C) 2008 STMicroelectronics
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#ifndef __ASM_ARCH_SYSTEM_H
21#define __ASM_ARCH_SYSTEM_H
22
23#include <linux/io.h>
24#include <mach/hardware.h>
25
26static inline void arch_idle(void)
27{
28 /*
29 * This should do all the clock switching
30 * and wait for interrupt tricks
31 */
32 cpu_do_idle();
33}
34
35static inline void arch_reset(char mode, const char *cmd)
36{
37 void __iomem *src_rstsr = io_p2v(NOMADIK_SRC_BASE + 0x18);
38
39 /* FIXME: use egpio when implemented */
40
41 /* Write anything to Reset status register */
42 writel(1, src_rstsr);
43}
44
45#endif
diff --git a/arch/arm/mach-nomadik/include/mach/timex.h b/arch/arm/mach-nomadik/include/mach/timex.h
new file mode 100644
index 000000000000..318b8896ce96
--- /dev/null
+++ b/arch/arm/mach-nomadik/include/mach/timex.h
@@ -0,0 +1,6 @@
1#ifndef __ASM_ARCH_TIMEX_H
2#define __ASM_ARCH_TIMEX_H
3
4#define CLOCK_TICK_RATE 2400000
5
6#endif
diff --git a/arch/arm/mach-nomadik/include/mach/uncompress.h b/arch/arm/mach-nomadik/include/mach/uncompress.h
new file mode 100644
index 000000000000..071003bc8456
--- /dev/null
+++ b/arch/arm/mach-nomadik/include/mach/uncompress.h
@@ -0,0 +1,63 @@
1/*
2 * Copyright (C) 2008 STMicroelectronics
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 */
18
19#ifndef __ASM_ARCH_UNCOMPRESS_H
20#define __ASM_ARCH_UNCOMPRESS_H
21
22#include <asm/setup.h>
23#include <asm/io.h>
24#include <mach/hardware.h>
25
26/* we need the constants in amba/serial.h, but it refers to amba_device */
27struct amba_device;
28#include <linux/amba/serial.h>
29
30#define NOMADIK_UART_DR 0x101FB000
31#define NOMADIK_UART_LCRH 0x101FB02c
32#define NOMADIK_UART_CR 0x101FB030
33#define NOMADIK_UART_FR 0x101FB018
34
35static void putc(const char c)
36{
37 /* Do nothing if the UART is not enabled. */
38 if (!(readb(NOMADIK_UART_CR) & UART01x_CR_UARTEN))
39 return;
40
41 if (c == '\n')
42 putc('\r');
43
44 while (readb(NOMADIK_UART_FR) & UART01x_FR_TXFF)
45 barrier();
46 writeb(c, NOMADIK_UART_DR);
47}
48
49static void flush(void)
50{
51 if (!(readb(NOMADIK_UART_CR) & UART01x_CR_UARTEN))
52 return;
53 while (readb(NOMADIK_UART_FR) & UART01x_FR_BUSY)
54 barrier();
55}
56
57static inline void arch_decomp_setup(void)
58{
59}
60
61#define arch_decomp_wdog() /* nothing to do here */
62
63#endif /* __ASM_ARCH_UNCOMPRESS_H */
diff --git a/arch/arm/mach-nomadik/include/mach/vmalloc.h b/arch/arm/mach-nomadik/include/mach/vmalloc.h
new file mode 100644
index 000000000000..be12e31ea528
--- /dev/null
+++ b/arch/arm/mach-nomadik/include/mach/vmalloc.h
@@ -0,0 +1,2 @@
1
2#define VMALLOC_END 0xe8000000
diff --git a/arch/arm/mach-nomadik/timer.c b/arch/arm/mach-nomadik/timer.c
new file mode 100644
index 000000000000..d1738e7061d4
--- /dev/null
+++ b/arch/arm/mach-nomadik/timer.c
@@ -0,0 +1,164 @@
1/*
2 * linux/arch/arm/mach-nomadik/timer.c
3 *
4 * Copyright (C) 2008 STMicroelectronics
5 * Copyright (C) 2009 Alessandro Rubini, somewhat based on at91sam926x
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2, as
9 * published by the Free Software Foundation.
10 */
11#include <linux/init.h>
12#include <linux/interrupt.h>
13#include <linux/irq.h>
14#include <linux/io.h>
15#include <linux/clockchips.h>
16#include <linux/jiffies.h>
17#include <asm/mach/time.h>
18#include <mach/mtu.h>
19
20#define TIMER_CTRL 0x80 /* No divisor */
21#define TIMER_PERIODIC 0x40
22#define TIMER_SZ32BIT 0x02
23
24/* Initial value for SRC control register: all timers use MXTAL/8 source */
25#define SRC_CR_INIT_MASK 0x00007fff
26#define SRC_CR_INIT_VAL 0x2aaa8000
27
28static u32 nmdk_count; /* accumulated count */
29static u32 nmdk_cycle; /* write-once */
30static __iomem void *mtu_base;
31
32/*
33 * clocksource: the MTU device is a decrementing counters, so we negate
34 * the value being read.
35 */
36static cycle_t nmdk_read_timer(struct clocksource *cs)
37{
38 u32 count = readl(mtu_base + MTU_VAL(0));
39 return nmdk_count + nmdk_cycle - count;
40
41}
42
43static struct clocksource nmdk_clksrc = {
44 .name = "mtu_0",
45 .rating = 120,
46 .read = nmdk_read_timer,
47 .shift = 20,
48 .flags = CLOCK_SOURCE_IS_CONTINUOUS,
49};
50
51/*
52 * Clockevent device: currently only periodic mode is supported
53 */
54static void nmdk_clkevt_mode(enum clock_event_mode mode,
55 struct clock_event_device *dev)
56{
57 unsigned long flags;
58
59 switch (mode) {
60 case CLOCK_EVT_MODE_PERIODIC:
61 /* enable interrupts -- and count current value? */
62 raw_local_irq_save(flags);
63 writel(readl(mtu_base + MTU_IMSC) | 1, mtu_base + MTU_IMSC);
64 raw_local_irq_restore(flags);
65 break;
66 case CLOCK_EVT_MODE_ONESHOT:
67 BUG(); /* Not supported, yet */
68 /* FALLTHROUGH */
69 case CLOCK_EVT_MODE_SHUTDOWN:
70 case CLOCK_EVT_MODE_UNUSED:
71 /* disable irq */
72 raw_local_irq_save(flags);
73 writel(readl(mtu_base + MTU_IMSC) & ~1, mtu_base + MTU_IMSC);
74 raw_local_irq_restore(flags);
75 break;
76 case CLOCK_EVT_MODE_RESUME:
77 break;
78 }
79}
80
81static struct clock_event_device nmdk_clkevt = {
82 .name = "mtu_0",
83 .features = CLOCK_EVT_FEAT_PERIODIC,
84 .shift = 32,
85 .rating = 100,
86 .set_mode = nmdk_clkevt_mode,
87};
88
89/*
90 * IRQ Handler for the timer 0 of the MTU block. The irq is not shared
91 * as we are the only users of mtu0 by now.
92 */
93static irqreturn_t nmdk_timer_interrupt(int irq, void *dev_id)
94{
95 /* ack: "interrupt clear register" */
96 writel( 1 << 0, mtu_base + MTU_ICR);
97
98 /* we can't count lost ticks, unfortunately */
99 nmdk_count += nmdk_cycle;
100 nmdk_clkevt.event_handler(&nmdk_clkevt);
101
102 return IRQ_HANDLED;
103}
104
105/*
106 * Set up timer interrupt, and return the current time in seconds.
107 */
108static struct irqaction nmdk_timer_irq = {
109 .name = "Nomadik Timer Tick",
110 .flags = IRQF_DISABLED | IRQF_TIMER,
111 .handler = nmdk_timer_interrupt,
112};
113
114static void nmdk_timer_reset(void)
115{
116 u32 cr;
117
118 writel(0, mtu_base + MTU_CR(0)); /* off */
119
120 /* configure load and background-load, and fire it up */
121 writel(nmdk_cycle, mtu_base + MTU_LR(0));
122 writel(nmdk_cycle, mtu_base + MTU_BGLR(0));
123 cr = MTU_CRn_PERIODIC | MTU_CRn_PRESCALE_1 | MTU_CRn_32BITS;
124 writel(cr, mtu_base + MTU_CR(0));
125 writel(cr | MTU_CRn_ENA, mtu_base + MTU_CR(0));
126}
127
128static void __init nmdk_timer_init(void)
129{
130 u32 src_cr;
131 unsigned long rate;
132 int bits;
133
134 rate = CLOCK_TICK_RATE; /* 2.4MHz */
135 nmdk_cycle = (rate + HZ/2) / HZ;
136
137 /* Configure timer sources in "system reset controller" ctrl reg */
138 src_cr = readl(io_p2v(NOMADIK_SRC_BASE));
139 src_cr &= SRC_CR_INIT_MASK;
140 src_cr |= SRC_CR_INIT_VAL;
141 writel(src_cr, io_p2v(NOMADIK_SRC_BASE));
142
143 /* Save global pointer to mtu, used by functions above */
144 mtu_base = io_p2v(NOMADIK_MTU0_BASE);
145
146 /* Init the timer and register clocksource */
147 nmdk_timer_reset();
148
149 nmdk_clksrc.mult = clocksource_hz2mult(rate, nmdk_clksrc.shift);
150 bits = 8*sizeof(nmdk_count);
151 nmdk_clksrc.mask = CLOCKSOURCE_MASK(bits);
152
153 clocksource_register(&nmdk_clksrc);
154
155 /* Register irq and clockevents */
156 setup_irq(IRQ_MTU0, &nmdk_timer_irq);
157 nmdk_clkevt.mult = div_sc(rate, NSEC_PER_SEC, nmdk_clkevt.shift);
158 nmdk_clkevt.cpumask = cpumask_of(0);
159 clockevents_register_device(&nmdk_clkevt);
160}
161
162struct sys_timer nomadik_timer = {
163 .init = nmdk_timer_init,
164};
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-23 10:18:16 -0500