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ARM: S5P6440: Add new CPU initialization support

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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>
This commit is contained in:
Kukjin Kim 2010-01-14 15:29:17 +09:00 committed by Ben Dooks
parent be97162d47
commit 209fecd1b8
15 changed files with 652 additions and 0 deletions
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114
arch/arm/mach-s5p6440/cpu.c Normal file
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/* linux/arch/arm/mach-s5p6440/cpu.c
*
* Copyright (c) 2009 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/sysdev.h>
#include <linux/serial_core.h>
#include <linux/platform_device.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <asm/proc-fns.h>
#include <mach/hardware.h>
#include <mach/map.h>
#include <asm/irq.h>
#include <plat/regs-serial.h>
#include <mach/regs-clock.h>
#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/clock.h>
#include <plat/s5p6440.h>
static void s5p6440_idle(void)
{
unsigned long val;
if (!need_resched()) {
val = __raw_readl(S5P_PWR_CFG);
val &= ~(0x3<<5);
val |= (0x1<<5);
__raw_writel(val, S5P_PWR_CFG);
cpu_do_idle();
}
local_irq_enable();
}
/* s5p6440_map_io
*
* register the standard cpu IO areas
*/
void __init s5p6440_map_io(void)
{
/* initialize any device information early */
}
void __init s5p6440_init_clocks(int xtal)
{
printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
s3c24xx_register_baseclocks(xtal);
s5p_register_clocks(xtal);
s5p6440_register_clocks();
s5p6440_setup_clocks();
}
void __init s5p6440_init_irq(void)
{
/* S5P6440 supports only 2 VIC */
u32 vic[2];
/*
* VIC0 is missing IRQ_VIC0[3, 4, 8, 10, (12-22)]
* VIC1 is missing IRQ VIC1[1, 3, 4, 10, 11, 12, 14, 15, 22]
*/
vic[0] = 0xff800ae7;
vic[1] = 0xffbf23e5;
s5p_init_irq(vic, ARRAY_SIZE(vic));
}
static struct sysdev_class s5p6440_sysclass = {
.name = "s5p6440-core",
};
static struct sys_device s5p6440_sysdev = {
.cls = &s5p6440_sysclass,
};
static int __init s5p6440_core_init(void)
{
return sysdev_class_register(&s5p6440_sysclass);
}
core_initcall(s5p6440_core_init);
int __init s5p6440_init(void)
{
printk(KERN_INFO "S5P6440: Initializing architecture\n");
/* set idle function */
pm_idle = s5p6440_idle;
return sysdev_register(&s5p6440_sysdev);
}

37
arch/arm/mach-s5p6440/include/mach/debug-macro.S Normal file
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/* linux/arch/arm/mach-s5p6440/include/mach/debug-macro.S
*
* Copyright (c) 2009 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/* pull in the relevant register and map files. */
#include <mach/map.h>
#include <plat/regs-serial.h>
/* note, for the boot process to work we have to keep the UART
* virtual address aligned to an 1MiB boundary for the L1
* mapping the head code makes. We keep the UART virtual address
* aligned and add in the offset when we load the value here.
*/
.macro addruart, rx
mrc p15, 0, \rx, c1, c0
tst \rx, #1
ldreq \rx, = S5P_PA_UART
ldrne \rx, = (S5P_VA_UART + S5P_PA_UART & 0xfffff)
#if CONFIG_DEBUG_S3C_UART != 0
add \rx, \rx, #(0x400 * CONFIG_DEBUG_S3C_UART)
#endif
.endm
/* include the reset of the code which will do the work, we're only
* compiling for a single cpu processor type so the default of s3c2440
* will be fine with us.
*/
#include <plat/debug-macro.S>

16
arch/arm/mach-s5p6440/include/mach/entry-macro.S Normal file
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/* linux/arch/arm/mach-s5p6440/include/mach/entry-macro.S
*
* Copyright (c) 2009 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* Low-level IRQ helper macros for the Samsung S5P6440
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <mach/map.h>
#include <plat/irqs.h>
#include <asm/entry-macro-vic2.S>

19
arch/arm/mach-s5p6440/include/mach/gpio-core.h Normal file
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/* linux/arch/arm/mach-s5p6440/include/mach/gpio-core.h
*
* Copyright (c) 2009 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* S5P6440 - GPIO core support
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ASM_ARCH_GPIO_CORE_H
#define __ASM_ARCH_GPIO_CORE_H __FILE__
/* currently we just include the platform support */
#include <plat/gpio-core.h>
#endif /* __ASM_ARCH_GPIO_CORE_H */

80
arch/arm/mach-s5p6440/include/mach/gpio.h Normal file
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/* linux/arch/arm/mach-s5p6440/include/mach/gpio.h
*
* Copyright (c) 2009 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* S5P6440 - GPIO lib support
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ASM_ARCH_GPIO_H
#define __ASM_ARCH_GPIO_H __FILE__
#define gpio_get_value __gpio_get_value
#define gpio_set_value __gpio_set_value
#define gpio_cansleep __gpio_cansleep
#define gpio_to_irq __gpio_to_irq
/* GPIO bank sizes */
#define S5P6440_GPIO_A_NR (6)
#define S5P6440_GPIO_B_NR (7)
#define S5P6440_GPIO_C_NR (8)
#define S5P6440_GPIO_F_NR (2)
#define S5P6440_GPIO_G_NR (7)
#define S5P6440_GPIO_H_NR (10)
#define S5P6440_GPIO_I_NR (16)
#define S5P6440_GPIO_J_NR (12)
#define S5P6440_GPIO_N_NR (16)
#define S5P6440_GPIO_P_NR (8)
#define S5P6440_GPIO_R_NR (15)
/* GPIO bank numbers */
/* CONFIG_S3C_GPIO_SPACE allows the user to select extra
* space for debugging purposes so that any accidental
* change from one gpio bank to another can be caught.
*/
#define S5P6440_GPIO_NEXT(__gpio) \
((__gpio##_START) + (__gpio##_NR) + CONFIG_S3C_GPIO_SPACE + 1)
enum s5p_gpio_number {
S5P6440_GPIO_A_START = 0,
S5P6440_GPIO_B_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_A),
S5P6440_GPIO_C_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_B),
S5P6440_GPIO_F_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_C),
S5P6440_GPIO_G_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_F),
S5P6440_GPIO_H_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_G),
S5P6440_GPIO_I_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_H),
S5P6440_GPIO_J_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_I),
S5P6440_GPIO_N_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_J),
S5P6440_GPIO_P_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_N),
S5P6440_GPIO_R_START = S5P6440_GPIO_NEXT(S5P6440_GPIO_P),
};
/* S5P6440 GPIO number definitions. */
#define S5P6440_GPA(_nr) (S5P6440_GPIO_A_START + (_nr))
#define S5P6440_GPB(_nr) (S5P6440_GPIO_B_START + (_nr))
#define S5P6440_GPC(_nr) (S5P6440_GPIO_C_START + (_nr))
#define S5P6440_GPF(_nr) (S5P6440_GPIO_F_START + (_nr))
#define S5P6440_GPG(_nr) (S5P6440_GPIO_G_START + (_nr))
#define S5P6440_GPH(_nr) (S5P6440_GPIO_H_START + (_nr))
#define S5P6440_GPI(_nr) (S5P6440_GPIO_I_START + (_nr))
#define S5P6440_GPJ(_nr) (S5P6440_GPIO_J_START + (_nr))
#define S5P6440_GPN(_nr) (S5P6440_GPIO_N_START + (_nr))
#define S5P6440_GPP(_nr) (S5P6440_GPIO_P_START + (_nr))
#define S5P6440_GPR(_nr) (S5P6440_GPIO_R_START + (_nr))
/* the end of the S5P6440 specific gpios */
#define S5P6440_GPIO_END (S5P6440_GPR(S5P6440_GPIO_R_NR) + 1)
#define S3C_GPIO_END S5P6440_GPIO_END
/* define the number of gpios we need to the one after the GPR() range */
#define ARCH_NR_GPIOS (S5P6440_GPR(S5P6440_GPIO_R_NR) + \
CONFIG_SAMSUNG_GPIO_EXTRA + 1)
#include <asm-generic/gpio.h>
#endif /* __ASM_ARCH_GPIO_H */

18
arch/arm/mach-s5p6440/include/mach/hardware.h Normal file
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/* linux/arch/arm/mach-s5p6440/include/mach/hardware.h
*
* Copyright (c) 2009 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* S5P6440 - Hardware support
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ASM_ARCH_HARDWARE_H
#define __ASM_ARCH_HARDWARE_H __FILE__
/* currently nothing here, placeholder */
#endif /* __ASM_ARCH_HARDWARE_H */

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arch/arm/mach-s5p6440/include/mach/map.h Normal file
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/* linux/arch/arm/mach-s5p6440/include/mach/map.h
*
* Copyright (c) 2009 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* S5P6440 - Memory map definitions
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ASM_ARCH_MAP_H
#define __ASM_ARCH_MAP_H __FILE__
#include <plat/map-base.h>
/* SYSCON */
#define S5P6440_PA_SYSCON (0xE0100000)
#define S5P_PA_SYSCON S5P6440_PA_SYSCON
#define S5P_VA_SYSCON S3C_VA_SYS
#define S5P6440_PA_CLK (S5P6440_PA_SYSCON + 0x0)
#define S5P_PA_CLK S5P6440_PA_CLK
#define S5P_VA_CLK (S5P_VA_SYSCON + 0x0)
/* GPIO */
#define S5P6440_PA_GPIO (0xE0308000)
#define S5P_PA_GPIO S5P6440_PA_GPIO
#define S5P_VA_GPIO S3C_ADDR(0x00500000)
/* VIC0 */
#define S5P6440_PA_VIC0 (0xE4000000)
#define S5P_PA_VIC0 S5P6440_PA_VIC0
#define S5P_VA_VIC0 (S3C_VA_IRQ + 0x0)
#define VA_VIC0 S5P_VA_VIC0
/* VIC1 */
#define S5P6440_PA_VIC1 (0xE4100000)
#define S5P_PA_VIC1 S5P6440_PA_VIC1
#define S5P_VA_VIC1 (S3C_VA_IRQ + 0x10000)
#define VA_VIC1 S5P_VA_VIC1
/* Timer */
#define S5P6440_PA_TIMER (0xEA000000)
#define S5P_PA_TIMER S5P6440_PA_TIMER
#define S5P_VA_TIMER S3C_VA_TIMER
/* RTC */
#define S5P6440_PA_RTC (0xEA100000)
#define S5P_PA_RTC S5P6440_PA_RTC
#define S5P_VA_RTC S3C_ADDR(0x00600000)
/* WDT */
#define S5P6440_PA_WDT (0xEA200000)
#define S5P_PA_WDT S5P6440_PA_WDT
#define S5p_VA_WDT S3C_VA_WATCHDOG
/* UART */
#define S5P6440_PA_UART (0xEC000000)
#define S5P_PA_UART S5P6440_PA_UART
#define S5P_VA_UART S3C_VA_UART
#define S5P_PA_UART0 (S5P_PA_UART + 0x0)
#define S5P_PA_UART1 (S5P_PA_UART + 0x400)
#define S5P_PA_UART2 (S5P_PA_UART + 0x800)
#define S5P_PA_UART3 (S5P_PA_UART + 0xC00)
#define S5P_UART_OFFSET (0x400)
#define S5P_VA_UARTx(x) (S5P_VA_UART + (S5P_PA_UART & 0xfffff) \
+ ((x) * S5P_UART_OFFSET))
#define S5P_VA_UART0 S5P_VA_UARTx(0)
#define S5P_VA_UART1 S5P_VA_UARTx(1)
#define S5P_VA_UART2 S5P_VA_UARTx(2)
#define S5P_VA_UART3 S5P_VA_UARTx(3)
#define S5P_SZ_UART SZ_256
/* I2C */
#define S5P6440_PA_IIC0 (0xEC104000)
#define S5P_PA_IIC0 S5P6440_PA_IIC0
#define S5p_VA_IIC0 S3C_ADDR(0x00700000)
/* SDRAM */
#define S5P6440_PA_SDRAM (0x20000000)
#define S5P_PA_SDRAM S5P6440_PA_SDRAM
/* compatibiltiy defines. */
#define S3C_PA_UART S5P_PA_UART
#define S3C_UART_OFFSET S5P_UART_OFFSET
#define S3C_PA_TIMER S5P_PA_TIMER
#define S3C_PA_IIC S5P_PA_IIC0
#endif /* __ASM_ARCH_MAP_H */

19
arch/arm/mach-s5p6440/include/mach/memory.h Normal file
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/* linux/arch/arm/mach-s5p6440/include/mach/memory.h
*
* Copyright (c) 2009 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* S5P6440 - Memory definitions
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ASM_ARCH_MEMORY_H
#define __ASM_ARCH_MEMORY_H
#define PHYS_OFFSET UL(0x20000000)
#define CONSISTENT_DMA_SIZE SZ_8M
#endif /* __ASM_ARCH_MEMORY_H */

26
arch/arm/mach-s5p6440/include/mach/system.h Normal file
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/* linux/arch/arm/mach-s5p6440/include/mach/system.h
*
* Copyright (c) 2009 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* S5P6440 - system support header
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ASM_ARCH_SYSTEM_H
#define __ASM_ARCH_SYSTEM_H __FILE__
static void arch_idle(void)
{
/* nothing here yet */
}
static void arch_reset(char mode, const char *cmd)
{
/* nothing here yet */
}
#endif /* __ASM_ARCH_SYSTEM_H */

24
arch/arm/mach-s5p6440/include/mach/uncompress.h Normal file
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/* linux/arch/arm/mach-s5p6440/include/mach/uncompress.h
*
* Copyright (c) 2009 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* S5P6440 - uncompress code
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ASM_ARCH_UNCOMPRESS_H
#define __ASM_ARCH_UNCOMPRESS_H
#include <mach/map.h>
#include <plat/uncompress.h>
static void arch_detect_cpu(void)
{
/* we do not need to do any cpu detection here at the moment. */
}
#endif /* __ASM_ARCH_UNCOMPRESS_H */

3
arch/arm/plat-s3c/include/plat/cpu.h
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@ -48,9 +48,12 @@ extern void s3c_init_cpu(unsigned long idcode,
extern void s3c24xx_init_irq(void);
extern void s3c64xx_init_irq(u32 vic0, u32 vic1);
extern void s5p_init_irq(u32 *vic, u32 num_vic);
extern void s3c24xx_init_io(struct map_desc *mach_desc, int size);
extern void s3c64xx_init_io(struct map_desc *mach_desc, int size);
extern void s5p_init_io(struct map_desc *mach_desc,
int size, void __iomem *cpuid_addr);
extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no);

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arch/arm/plat-s5p/cpu.c Normal file
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/* linux/arch/arm/plat-s5p/cpu.c
*
* Copyright (c) 2009 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* S5P CPU Support
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <mach/map.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <mach/regs-clock.h>
#include <plat/cpu.h>
#include <plat/s5p6440.h>
/* table of supported CPUs */
static const char name_s5p6440[] = "S5P6440";
static struct cpu_table cpu_ids[] __initdata = {
{
.idcode = 0x56440100,
.idmask = 0xffffff00,
.map_io = s5p6440_map_io,
.init_clocks = s5p6440_init_clocks,
.init_uarts = s5p6440_init_uarts,
.init = s5p6440_init,
.name = name_s5p6440,
},
};
/* minimal IO mapping */
#define UART_OFFS (S5P_PA_UART & 0xfffff)
static struct map_desc s5p_iodesc[] __initdata = {
{
.virtual = (unsigned long)S5P_VA_SYSCON,
.pfn = __phys_to_pfn(S5P_PA_SYSCON),
.length = SZ_64K,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)(S5P_VA_UART + UART_OFFS),
.pfn = __phys_to_pfn(S5P_PA_UART),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)S5P_VA_VIC0,
.pfn = __phys_to_pfn(S5P_PA_VIC0),
.length = SZ_16K,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)S5P_VA_VIC1,
.pfn = __phys_to_pfn(S5P_PA_VIC1),
.length = SZ_16K,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)S5P_VA_TIMER,
.pfn = __phys_to_pfn(S5P_PA_TIMER),
.length = SZ_16K,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)S5P_VA_GPIO,
.pfn = __phys_to_pfn(S5P_PA_GPIO),
.length = SZ_4K,
.type = MT_DEVICE,
},
};
/* read cpu identification code */
void __init s5p_init_io(struct map_desc *mach_desc,
int size, void __iomem *cpuid_addr)
{
unsigned long idcode;
/* initialize the io descriptors we need for initialization */
iotable_init(s5p_iodesc, ARRAY_SIZE(s5p_iodesc));
if (mach_desc)
iotable_init(mach_desc, size);
idcode = __raw_readl(cpuid_addr);
s3c_init_cpu(idcode, cpu_ids, ARRAY_SIZE(cpu_ids));
}

37
arch/arm/plat-s5p/include/plat/s5p6440.h Normal file
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/* arch/arm/plat-s5p/include/plat/s5p6440.h
*
* Copyright (c) 2009 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* Header file for s5p6440 cpu support
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/* Common init code for S5P6440 related SoCs */
extern void s5p6440_common_init_uarts(struct s3c2410_uartcfg *cfg, int no);
extern void s5p6440_register_clocks(void);
extern void s5p6440_setup_clocks(void);
#ifdef CONFIG_CPU_S5P6440
extern int s5p6440_init(void);
extern void s5p6440_init_irq(void);
extern void s5p6440_map_io(void);
extern void s5p6440_init_clocks(int xtal);
#define s5p6440_init_uarts s5p6440_common_init_uarts
#else
#define s5p6440_init_clocks NULL
#define s5p6440_init_uarts NULL
#define s5p6440_map_io NULL
#define s5p6440_init NULL
#endif
/* S5P6440 timer */
extern struct sys_timer s5p6440_timer;

50
arch/arm/plat-s5p/s5p6440-init.c Normal file
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@ -0,0 +1,50 @@
/* linux/arch/arm/plat-s5p/s5p6440-init.c
*
* Copyright (c) 2009 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/init.h>
#include <linux/serial_core.h>
#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/s5p6440.h>
#include <plat/regs-serial.h>
static struct s3c24xx_uart_clksrc s5p6440_serial_clocks[] = {
[0] = {
.name = "pclk_low",
.divisor = 1,
.min_baud = 0,
.max_baud = 0,
},
[1] = {
.name = "uclk1",
.divisor = 1,
.min_baud = 0,
.max_baud = 0,
},
};
/* uart registration process */
void __init s5p6440_common_init_uarts(struct s3c2410_uartcfg *cfg, int no)
{
struct s3c2410_uartcfg *tcfg = cfg;
u32 ucnt;
for (ucnt = 0; ucnt < no; ucnt++, tcfg++) {
if (!tcfg->clocks) {
tcfg->clocks = s5p6440_serial_clocks;
tcfg->clocks_size = ARRAY_SIZE(s5p6440_serial_clocks);
}
}
s3c24xx_init_uartdevs("s3c6400-uart", s5p_uart_resources, cfg, no);
}

25
arch/arm/plat-s5p/setup-i2c0.c Normal file
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/* linux/arch/arm/plat-s5p/setup-i2c0.c
*
* Copyright (c) 2009 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* I2C0 GPIO configuration.
*
* Based on plat-s3c64xx/setup-i2c0.c
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/types.h>
struct platform_device; /* don't need the contents */
#include <plat/iic.h>
void s3c_i2c0_cfg_gpio(struct platform_device *dev)
{
/* Will be populated later */
}