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authorKukjin Kim <kgene.kim@samsung.com>2010-01-14 01:29:17 -0500
committerBen Dooks <ben-linux@fluff.org>2010-01-15 05:16:08 -0500
commit209fecd1b8e65b8046efbbc8314d449e53c4c6b6 (patch)
tree5b8cc8ea137431224c22fc5cfd6dbb21dd652ed6
parentbe97162d47b2e067f9d21097650f2f0405dacc9f (diff)
ARM: S5P6440: Add new CPU initialization support
This patch adds Samsung's S5P6440 CPU support. Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat
-rw-r--r--arch/arm/mach-s5p6440/cpu.c114
-rw-r--r--arch/arm/mach-s5p6440/include/mach/debug-macro.S37
-rw-r--r--arch/arm/mach-s5p6440/include/mach/entry-macro.S16
-rw-r--r--arch/arm/mach-s5p6440/include/mach/gpio-core.h19
-rw-r--r--arch/arm/mach-s5p6440/include/mach/gpio.h80
-rw-r--r--arch/arm/mach-s5p6440/include/mach/hardware.h18
-rw-r--r--arch/arm/mach-s5p6440/include/mach/map.h94
-rw-r--r--arch/arm/mach-s5p6440/include/mach/memory.h19
-rw-r--r--arch/arm/mach-s5p6440/include/mach/system.h26
-rw-r--r--arch/arm/mach-s5p6440/include/mach/uncompress.h24
-rw-r--r--arch/arm/plat-s3c/include/plat/cpu.h3
-rw-r--r--arch/arm/plat-s5p/cpu.c90
-rw-r--r--arch/arm/plat-s5p/include/plat/s5p6440.h37
-rw-r--r--arch/arm/plat-s5p/s5p6440-init.c50
-rw-r--r--arch/arm/plat-s5p/setup-i2c0.c25
15 files changed, 652 insertions, 0 deletions
diff --git a/arch/arm/mach-s5p6440/cpu.c b/arch/arm/mach-s5p6440/cpu.c
new file mode 100644
index 000000000000..1794131aeacb
--- /dev/null
+++ b/arch/arm/mach-s5p6440/cpu.c
@@ -0,0 +1,114 @@
1/* linux/arch/arm/mach-s5p6440/cpu.c
2 *
3 * Copyright (c) 2009 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com/
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9*/
10
11#include <linux/kernel.h>
12#include <linux/types.h>
13#include <linux/interrupt.h>
14#include <linux/list.h>
15#include <linux/timer.h>
16#include <linux/init.h>
17#include <linux/clk.h>
18#include <linux/io.h>
19#include <linux/sysdev.h>
20#include <linux/serial_core.h>
21#include <linux/platform_device.h>
22
23#include <asm/mach/arch.h>
24#include <asm/mach/map.h>
25#include <asm/mach/irq.h>
26
27#include <asm/proc-fns.h>
28
29#include <mach/hardware.h>
30#include <mach/map.h>
31#include <asm/irq.h>
32
33#include <plat/regs-serial.h>
34#include <mach/regs-clock.h>
35
36#include <plat/cpu.h>
37#include <plat/devs.h>
38#include <plat/clock.h>
39#include <plat/s5p6440.h>
40
41static void s5p6440_idle(void)
42{
43 unsigned long val;
44
45 if (!need_resched()) {
46 val = __raw_readl(S5P_PWR_CFG);
47 val &= ~(0x3<<5);
48 val |= (0x1<<5);
49 __raw_writel(val, S5P_PWR_CFG);
50
51 cpu_do_idle();
52 }
53 local_irq_enable();
54}
55
56/* s5p6440_map_io
57 *
58 * register the standard cpu IO areas
59*/
60
61void __init s5p6440_map_io(void)
62{
63 /* initialize any device information early */
64}
65
66void __init s5p6440_init_clocks(int xtal)
67{
68 printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
69
70 s3c24xx_register_baseclocks(xtal);
71 s5p_register_clocks(xtal);
72 s5p6440_register_clocks();
73 s5p6440_setup_clocks();
74}
75
76void __init s5p6440_init_irq(void)
77{
78 /* S5P6440 supports only 2 VIC */
79 u32 vic[2];
80
81 /*
82 * VIC0 is missing IRQ_VIC0[3, 4, 8, 10, (12-22)]
83 * VIC1 is missing IRQ VIC1[1, 3, 4, 10, 11, 12, 14, 15, 22]
84 */
85 vic[0] = 0xff800ae7;
86 vic[1] = 0xffbf23e5;
87
88 s5p_init_irq(vic, ARRAY_SIZE(vic));
89}
90
91static struct sysdev_class s5p6440_sysclass = {
92 .name = "s5p6440-core",
93};
94
95static struct sys_device s5p6440_sysdev = {
96 .cls = &s5p6440_sysclass,
97};
98
99static int __init s5p6440_core_init(void)
100{
101 return sysdev_class_register(&s5p6440_sysclass);
102}
103
104core_initcall(s5p6440_core_init);
105
106int __init s5p6440_init(void)
107{
108 printk(KERN_INFO "S5P6440: Initializing architecture\n");
109
110 /* set idle function */
111 pm_idle = s5p6440_idle;
112
113 return sysdev_register(&s5p6440_sysdev);
114}
diff --git a/arch/arm/mach-s5p6440/include/mach/debug-macro.S b/arch/arm/mach-s5p6440/include/mach/debug-macro.S
new file mode 100644
index 000000000000..f3a5d1635be5
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/debug-macro.S
@@ -0,0 +1,37 @@
1/* linux/arch/arm/mach-s5p6440/include/mach/debug-macro.S
2 *
3 * Copyright (c) 2009 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com/
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9*/
10
11/* pull in the relevant register and map files. */
12
13#include <mach/map.h>
14#include <plat/regs-serial.h>
15
16 /* note, for the boot process to work we have to keep the UART
17 * virtual address aligned to an 1MiB boundary for the L1
18 * mapping the head code makes. We keep the UART virtual address
19 * aligned and add in the offset when we load the value here.
20 */
21
22 .macro addruart, rx
23 mrc p15, 0, \rx, c1, c0
24 tst \rx, #1
25 ldreq \rx, = S5P_PA_UART
26 ldrne \rx, = (S5P_VA_UART + S5P_PA_UART & 0xfffff)
27#if CONFIG_DEBUG_S3C_UART != 0
28 add \rx, \rx, #(0x400 * CONFIG_DEBUG_S3C_UART)
29#endif
30 .endm
31
32/* include the reset of the code which will do the work, we're only
33 * compiling for a single cpu processor type so the default of s3c2440
34 * will be fine with us.
35 */
36
37#include <plat/debug-macro.S>
diff --git a/arch/arm/mach-s5p6440/include/mach/entry-macro.S b/arch/arm/mach-s5p6440/include/mach/entry-macro.S
new file mode 100644
index 000000000000..e65f1b967262
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/entry-macro.S
@@ -0,0 +1,16 @@
1/* linux/arch/arm/mach-s5p6440/include/mach/entry-macro.S
2 *
3 * Copyright (c) 2009 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com/
5 *
6 * Low-level IRQ helper macros for the Samsung S5P6440
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#include <mach/map.h>
14#include <plat/irqs.h>
15
16#include <asm/entry-macro-vic2.S>
diff --git a/arch/arm/mach-s5p6440/include/mach/gpio-core.h b/arch/arm/mach-s5p6440/include/mach/gpio-core.h
new file mode 100644
index 000000000000..ff7fb3094188
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/gpio-core.h
@@ -0,0 +1,19 @@
1/* linux/arch/arm/mach-s5p6440/include/mach/gpio-core.h
2 *
3 * Copyright (c) 2009 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com/
5 *
6 * S5P6440 - GPIO core support
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#ifndef __ASM_ARCH_GPIO_CORE_H
14#define __ASM_ARCH_GPIO_CORE_H __FILE__
15
16/* currently we just include the platform support */
17#include <plat/gpio-core.h>
18
19#endif /* __ASM_ARCH_GPIO_CORE_H */
diff --git a/arch/arm/mach-s5p6440/include/mach/gpio.h b/arch/arm/mach-s5p6440/include/mach/gpio.h
new file mode 100644
index 000000000000..21783834f2a2
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/gpio.h
@@ -0,0 +1,80 @@
1/* linux/arch/arm/mach-s5p6440/include/mach/gpio.h
2 *
3 * Copyright (c) 2009 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com/
5 *
6 * S5P6440 - GPIO lib support
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#ifndef __ASM_ARCH_GPIO_H
14#define __ASM_ARCH_GPIO_H __FILE__
15
16#define gpio_get_value __gpio_get_value
17#define gpio_set_value __gpio_set_value
18#define gpio_cansleep __gpio_cansleep
19#define gpio_to_irq __gpio_to_irq
20
21/* GPIO bank sizes */
22#define S5P6440_GPIO_A_NR (6)
23#define S5P6440_GPIO_B_NR (7)
24#define S5P6440_GPIO_C_NR (8)
25#define S5P6440_GPIO_F_NR (2)
26#define S5P6440_GPIO_G_NR (7)
27#define S5P6440_GPIO_H_NR (10)
28#define S5P6440_GPIO_I_NR (16)
29#define S5P6440_GPIO_J_NR (12)
30#define S5P6440_GPIO_N_NR (16)
31#define S5P6440_GPIO_P_NR (8)
32#define S5P6440_GPIO_R_NR (15)
33
34/* GPIO bank numbers */
35
36/* CONFIG_S3C_GPIO_SPACE allows the user to select extra
37 * space for debugging purposes so that any accidental
38 * change from one gpio bank to another can be caught.
39*/
40#define S5P6440_GPIO_NEXT(__gpio) \
41 ((__gpio##_START) + (__gpio##_NR) + CONFIG_S3C_GPIO_SPACE + 1)
42
43enum s5p_gpio_number {
44 S5P6440_GPIO_A_START = 0,
45 S5P6440_GPIO_B_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_A),
46 S5P6440_GPIO_C_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_B),
47 S5P6440_GPIO_F_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_C),
48 S5P6440_GPIO_G_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_F),
49 S5P6440_GPIO_H_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_G),
50 S5P6440_GPIO_I_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_H),
51 S5P6440_GPIO_J_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_I),
52 S5P6440_GPIO_N_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_J),
53 S5P6440_GPIO_P_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_N),
54 S5P6440_GPIO_R_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_P),
55};
56
57/* S5P6440 GPIO number definitions. */
58#define S5P6440_GPA(_nr) (S5P6440_GPIO_A_START + (_nr))
59#define S5P6440_GPB(_nr) (S5P6440_GPIO_B_START + (_nr))
60#define S5P6440_GPC(_nr) (S5P6440_GPIO_C_START + (_nr))
61#define S5P6440_GPF(_nr) (S5P6440_GPIO_F_START + (_nr))
62#define S5P6440_GPG(_nr) (S5P6440_GPIO_G_START + (_nr))
63#define S5P6440_GPH(_nr) (S5P6440_GPIO_H_START + (_nr))
64#define S5P6440_GPI(_nr) (S5P6440_GPIO_I_START + (_nr))
65#define S5P6440_GPJ(_nr) (S5P6440_GPIO_J_START + (_nr))
66#define S5P6440_GPN(_nr) (S5P6440_GPIO_N_START + (_nr))
67#define S5P6440_GPP(_nr) (S5P6440_GPIO_P_START + (_nr))
68#define S5P6440_GPR(_nr) (S5P6440_GPIO_R_START + (_nr))
69
70/* the end of the S5P6440 specific gpios */
71#define S5P6440_GPIO_END (S5P6440_GPR(S5P6440_GPIO_R_NR) + 1)
72#define S3C_GPIO_END S5P6440_GPIO_END
73
74/* define the number of gpios we need to the one after the GPR() range */
75#define ARCH_NR_GPIOS (S5P6440_GPR(S5P6440_GPIO_R_NR) + \
76 CONFIG_SAMSUNG_GPIO_EXTRA + 1)
77
78#include <asm-generic/gpio.h>
79
80#endif /* __ASM_ARCH_GPIO_H */
diff --git a/arch/arm/mach-s5p6440/include/mach/hardware.h b/arch/arm/mach-s5p6440/include/mach/hardware.h
new file mode 100644
index 000000000000..be8b26e875db
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/hardware.h
@@ -0,0 +1,18 @@
1/* linux/arch/arm/mach-s5p6440/include/mach/hardware.h
2 *
3 * Copyright (c) 2009 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com/
5 *
6 * S5P6440 - Hardware support
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#ifndef __ASM_ARCH_HARDWARE_H
14#define __ASM_ARCH_HARDWARE_H __FILE__
15
16/* currently nothing here, placeholder */
17
18#endif /* __ASM_ARCH_HARDWARE_H */
diff --git a/arch/arm/mach-s5p6440/include/mach/map.h b/arch/arm/mach-s5p6440/include/mach/map.h
new file mode 100644
index 000000000000..b3703293cc3b
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/map.h
@@ -0,0 +1,94 @@
1/* linux/arch/arm/mach-s5p6440/include/mach/map.h
2 *
3 * Copyright (c) 2009 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com/
5 *
6 * S5P6440 - Memory map definitions
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#ifndef __ASM_ARCH_MAP_H
14#define __ASM_ARCH_MAP_H __FILE__
15
16#include <plat/map-base.h>
17
18/* SYSCON */
19#define S5P6440_PA_SYSCON (0xE0100000)
20#define S5P_PA_SYSCON S5P6440_PA_SYSCON
21#define S5P_VA_SYSCON S3C_VA_SYS
22
23#define S5P6440_PA_CLK (S5P6440_PA_SYSCON + 0x0)
24#define S5P_PA_CLK S5P6440_PA_CLK
25#define S5P_VA_CLK (S5P_VA_SYSCON + 0x0)
26
27/* GPIO */
28#define S5P6440_PA_GPIO (0xE0308000)
29#define S5P_PA_GPIO S5P6440_PA_GPIO
30#define S5P_VA_GPIO S3C_ADDR(0x00500000)
31
32/* VIC0 */
33#define S5P6440_PA_VIC0 (0xE4000000)
34#define S5P_PA_VIC0 S5P6440_PA_VIC0
35#define S5P_VA_VIC0 (S3C_VA_IRQ + 0x0)
36#define VA_VIC0 S5P_VA_VIC0
37
38/* VIC1 */
39#define S5P6440_PA_VIC1 (0xE4100000)
40#define S5P_PA_VIC1 S5P6440_PA_VIC1
41#define S5P_VA_VIC1 (S3C_VA_IRQ + 0x10000)
42#define VA_VIC1 S5P_VA_VIC1
43
44/* Timer */
45#define S5P6440_PA_TIMER (0xEA000000)
46#define S5P_PA_TIMER S5P6440_PA_TIMER
47#define S5P_VA_TIMER S3C_VA_TIMER
48
49/* RTC */
50#define S5P6440_PA_RTC (0xEA100000)
51#define S5P_PA_RTC S5P6440_PA_RTC
52#define S5P_VA_RTC S3C_ADDR(0x00600000)
53
54/* WDT */
55#define S5P6440_PA_WDT (0xEA200000)
56#define S5P_PA_WDT S5P6440_PA_WDT
57#define S5p_VA_WDT S3C_VA_WATCHDOG
58
59/* UART */
60#define S5P6440_PA_UART (0xEC000000)
61#define S5P_PA_UART S5P6440_PA_UART
62#define S5P_VA_UART S3C_VA_UART
63
64#define S5P_PA_UART0 (S5P_PA_UART + 0x0)
65#define S5P_PA_UART1 (S5P_PA_UART + 0x400)
66#define S5P_PA_UART2 (S5P_PA_UART + 0x800)
67#define S5P_PA_UART3 (S5P_PA_UART + 0xC00)
68#define S5P_UART_OFFSET (0x400)
69
70#define S5P_VA_UARTx(x) (S5P_VA_UART + (S5P_PA_UART & 0xfffff) \
71 + ((x) * S5P_UART_OFFSET))
72
73#define S5P_VA_UART0 S5P_VA_UARTx(0)
74#define S5P_VA_UART1 S5P_VA_UARTx(1)
75#define S5P_VA_UART2 S5P_VA_UARTx(2)
76#define S5P_VA_UART3 S5P_VA_UARTx(3)
77#define S5P_SZ_UART SZ_256
78
79/* I2C */
80#define S5P6440_PA_IIC0 (0xEC104000)
81#define S5P_PA_IIC0 S5P6440_PA_IIC0
82#define S5p_VA_IIC0 S3C_ADDR(0x00700000)
83
84/* SDRAM */
85#define S5P6440_PA_SDRAM (0x20000000)
86#define S5P_PA_SDRAM S5P6440_PA_SDRAM
87
88/* compatibiltiy defines. */
89#define S3C_PA_UART S5P_PA_UART
90#define S3C_UART_OFFSET S5P_UART_OFFSET
91#define S3C_PA_TIMER S5P_PA_TIMER
92#define S3C_PA_IIC S5P_PA_IIC0
93
94#endif /* __ASM_ARCH_MAP_H */
diff --git a/arch/arm/mach-s5p6440/include/mach/memory.h b/arch/arm/mach-s5p6440/include/mach/memory.h
new file mode 100644
index 000000000000..d62910c71b56
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/memory.h
@@ -0,0 +1,19 @@
1/* linux/arch/arm/mach-s5p6440/include/mach/memory.h
2 *
3 * Copyright (c) 2009 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com/
5 *
6 * S5P6440 - Memory definitions
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#ifndef __ASM_ARCH_MEMORY_H
14#define __ASM_ARCH_MEMORY_H
15
16#define PHYS_OFFSET UL(0x20000000)
17#define CONSISTENT_DMA_SIZE SZ_8M
18
19#endif /* __ASM_ARCH_MEMORY_H */
diff --git a/arch/arm/mach-s5p6440/include/mach/system.h b/arch/arm/mach-s5p6440/include/mach/system.h
new file mode 100644
index 000000000000..d2dd817da66a
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/system.h
@@ -0,0 +1,26 @@
1/* linux/arch/arm/mach-s5p6440/include/mach/system.h
2 *
3 * Copyright (c) 2009 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com/
5 *
6 * S5P6440 - system support header
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#ifndef __ASM_ARCH_SYSTEM_H
14#define __ASM_ARCH_SYSTEM_H __FILE__
15
16static void arch_idle(void)
17{
18 /* nothing here yet */
19}
20
21static void arch_reset(char mode, const char *cmd)
22{
23 /* nothing here yet */
24}
25
26#endif /* __ASM_ARCH_SYSTEM_H */
diff --git a/arch/arm/mach-s5p6440/include/mach/uncompress.h b/arch/arm/mach-s5p6440/include/mach/uncompress.h
new file mode 100644
index 000000000000..7c1f600d65c0
--- /dev/null
+++ b/arch/arm/mach-s5p6440/include/mach/uncompress.h
@@ -0,0 +1,24 @@
1/* linux/arch/arm/mach-s5p6440/include/mach/uncompress.h
2 *
3 * Copyright (c) 2009 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com/
5 *
6 * S5P6440 - uncompress code
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#ifndef __ASM_ARCH_UNCOMPRESS_H
14#define __ASM_ARCH_UNCOMPRESS_H
15
16#include <mach/map.h>
17#include <plat/uncompress.h>
18
19static void arch_detect_cpu(void)
20{
21 /* we do not need to do any cpu detection here at the moment. */
22}
23
24#endif /* __ASM_ARCH_UNCOMPRESS_H */
diff --git a/arch/arm/plat-s3c/include/plat/cpu.h b/arch/arm/plat-s3c/include/plat/cpu.h
index d1131ca11e97..676db9465674 100644
--- a/arch/arm/plat-s3c/include/plat/cpu.h
+++ b/arch/arm/plat-s3c/include/plat/cpu.h
@@ -48,9 +48,12 @@ extern void s3c_init_cpu(unsigned long idcode,
48 48
49extern void s3c24xx_init_irq(void); 49extern void s3c24xx_init_irq(void);
50extern void s3c64xx_init_irq(u32 vic0, u32 vic1); 50extern void s3c64xx_init_irq(u32 vic0, u32 vic1);
51extern void s5p_init_irq(u32 *vic, u32 num_vic);
51 52
52extern void s3c24xx_init_io(struct map_desc *mach_desc, int size); 53extern void s3c24xx_init_io(struct map_desc *mach_desc, int size);
53extern void s3c64xx_init_io(struct map_desc *mach_desc, int size); 54extern void s3c64xx_init_io(struct map_desc *mach_desc, int size);
55extern void s5p_init_io(struct map_desc *mach_desc,
56 int size, void __iomem *cpuid_addr);
54 57
55extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no); 58extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no);
56 59
diff --git a/arch/arm/plat-s5p/cpu.c b/arch/arm/plat-s5p/cpu.c
new file mode 100644
index 000000000000..0895a77a2835
--- /dev/null
+++ b/arch/arm/plat-s5p/cpu.c
@@ -0,0 +1,90 @@
1/* linux/arch/arm/plat-s5p/cpu.c
2 *
3 * Copyright (c) 2009 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com/
5 *
6 * S5P CPU Support
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#include <linux/init.h>
14#include <linux/module.h>
15#include <mach/map.h>
16#include <asm/mach/arch.h>
17#include <asm/mach/map.h>
18#include <mach/regs-clock.h>
19#include <plat/cpu.h>
20#include <plat/s5p6440.h>
21
22/* table of supported CPUs */
23
24static const char name_s5p6440[] = "S5P6440";
25
26static struct cpu_table cpu_ids[] __initdata = {
27 {
28 .idcode = 0x56440100,
29 .idmask = 0xffffff00,
30 .map_io = s5p6440_map_io,
31 .init_clocks = s5p6440_init_clocks,
32 .init_uarts = s5p6440_init_uarts,
33 .init = s5p6440_init,
34 .name = name_s5p6440,
35 },
36};
37
38/* minimal IO mapping */
39
40#define UART_OFFS (S5P_PA_UART & 0xfffff)
41
42static struct map_desc s5p_iodesc[] __initdata = {
43 {
44 .virtual = (unsigned long)S5P_VA_SYSCON,
45 .pfn = __phys_to_pfn(S5P_PA_SYSCON),
46 .length = SZ_64K,
47 .type = MT_DEVICE,
48 }, {
49 .virtual = (unsigned long)(S5P_VA_UART + UART_OFFS),
50 .pfn = __phys_to_pfn(S5P_PA_UART),
51 .length = SZ_4K,
52 .type = MT_DEVICE,
53 }, {
54 .virtual = (unsigned long)S5P_VA_VIC0,
55 .pfn = __phys_to_pfn(S5P_PA_VIC0),
56 .length = SZ_16K,
57 .type = MT_DEVICE,
58 }, {
59 .virtual = (unsigned long)S5P_VA_VIC1,
60 .pfn = __phys_to_pfn(S5P_PA_VIC1),
61 .length = SZ_16K,
62 .type = MT_DEVICE,
63 }, {
64 .virtual = (unsigned long)S5P_VA_TIMER,
65 .pfn = __phys_to_pfn(S5P_PA_TIMER),
66 .length = SZ_16K,
67 .type = MT_DEVICE,
68 }, {
69 .virtual = (unsigned long)S5P_VA_GPIO,
70 .pfn = __phys_to_pfn(S5P_PA_GPIO),
71 .length = SZ_4K,
72 .type = MT_DEVICE,
73 },
74};
75
76/* read cpu identification code */
77
78void __init s5p_init_io(struct map_desc *mach_desc,
79 int size, void __iomem *cpuid_addr)
80{
81 unsigned long idcode;
82
83 /* initialize the io descriptors we need for initialization */
84 iotable_init(s5p_iodesc, ARRAY_SIZE(s5p_iodesc));
85 if (mach_desc)
86 iotable_init(mach_desc, size);
87
88 idcode = __raw_readl(cpuid_addr);
89 s3c_init_cpu(idcode, cpu_ids, ARRAY_SIZE(cpu_ids));
90}
diff --git a/arch/arm/plat-s5p/include/plat/s5p6440.h b/arch/arm/plat-s5p/include/plat/s5p6440.h
new file mode 100644
index 000000000000..a4cd75afeb3b
--- /dev/null
+++ b/arch/arm/plat-s5p/include/plat/s5p6440.h
@@ -0,0 +1,37 @@
1/* arch/arm/plat-s5p/include/plat/s5p6440.h
2 *
3 * Copyright (c) 2009 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com/
5 *
6 * Header file for s5p6440 cpu support
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13 /* Common init code for S5P6440 related SoCs */
14
15extern void s5p6440_common_init_uarts(struct s3c2410_uartcfg *cfg, int no);
16extern void s5p6440_register_clocks(void);
17extern void s5p6440_setup_clocks(void);
18
19#ifdef CONFIG_CPU_S5P6440
20
21extern int s5p6440_init(void);
22extern void s5p6440_init_irq(void);
23extern void s5p6440_map_io(void);
24extern void s5p6440_init_clocks(int xtal);
25
26#define s5p6440_init_uarts s5p6440_common_init_uarts
27
28#else
29#define s5p6440_init_clocks NULL
30#define s5p6440_init_uarts NULL
31#define s5p6440_map_io NULL
32#define s5p6440_init NULL
33#endif
34
35/* S5P6440 timer */
36
37extern struct sys_timer s5p6440_timer;
diff --git a/arch/arm/plat-s5p/s5p6440-init.c b/arch/arm/plat-s5p/s5p6440-init.c
new file mode 100644
index 000000000000..90178256cc28
--- /dev/null
+++ b/arch/arm/plat-s5p/s5p6440-init.c
@@ -0,0 +1,50 @@
1/* linux/arch/arm/plat-s5p/s5p6440-init.c
2 *
3 * Copyright (c) 2009 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com/
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9*/
10
11#include <linux/kernel.h>
12#include <linux/types.h>
13#include <linux/init.h>
14#include <linux/serial_core.h>
15
16#include <plat/cpu.h>
17#include <plat/devs.h>
18#include <plat/s5p6440.h>
19#include <plat/regs-serial.h>
20
21static struct s3c24xx_uart_clksrc s5p6440_serial_clocks[] = {
22 [0] = {
23 .name = "pclk_low",
24 .divisor = 1,
25 .min_baud = 0,
26 .max_baud = 0,
27 },
28 [1] = {
29 .name = "uclk1",
30 .divisor = 1,
31 .min_baud = 0,
32 .max_baud = 0,
33 },
34};
35
36/* uart registration process */
37void __init s5p6440_common_init_uarts(struct s3c2410_uartcfg *cfg, int no)
38{
39 struct s3c2410_uartcfg *tcfg = cfg;
40 u32 ucnt;
41
42 for (ucnt = 0; ucnt < no; ucnt++, tcfg++) {
43 if (!tcfg->clocks) {
44 tcfg->clocks = s5p6440_serial_clocks;
45 tcfg->clocks_size = ARRAY_SIZE(s5p6440_serial_clocks);
46 }
47 }
48
49 s3c24xx_init_uartdevs("s3c6400-uart", s5p_uart_resources, cfg, no);
50}
diff --git a/arch/arm/plat-s5p/setup-i2c0.c b/arch/arm/plat-s5p/setup-i2c0.c
new file mode 100644
index 000000000000..67a66e02a97a
--- /dev/null
+++ b/arch/arm/plat-s5p/setup-i2c0.c
@@ -0,0 +1,25 @@
1/* linux/arch/arm/plat-s5p/setup-i2c0.c
2 *
3 * Copyright (c) 2009 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com/
5 *
6 * I2C0 GPIO configuration.
7 *
8 * Based on plat-s3c64xx/setup-i2c0.c
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 version 2 as
12 * published by the Free Software Foundation.
13*/
14
15#include <linux/kernel.h>
16#include <linux/types.h>
17
18struct platform_device; /* don't need the contents */
19
20#include <plat/iic.h>
21
22void s3c_i2c0_cfg_gpio(struct platform_device *dev)
23{
24 /* Will be populated later */
25}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-01 07:40:59 -0500