Subject: [PATCH v5 1/8] ARM: S5P6440: Add new CPU initialization support

From: [email-masked] (Ben Dooks)
Date: Thu, 14 Jan 2010 00:35:55 +0000

On Thu, Jan 14, 2010 at 08:50:23AM +0900, Kukjin Kim wrote:
> This patch adds Samsung's S5P6440 CPU support.
> 
> Signed-off-by: Kukjin Kim <[email-masked]>
> ---
>  arch/arm/mach-s5p6440/cpu.c                      |  113 ++++++++++++++++++++++
>  arch/arm/mach-s5p6440/include/mach/debug-macro.S |   37 +++++++
>  arch/arm/mach-s5p6440/include/mach/entry-macro.S |   16 +++
>  arch/arm/mach-s5p6440/include/mach/gpio-core.h   |   19 ++++
>  arch/arm/mach-s5p6440/include/mach/gpio.h        |   80 +++++++++++++++
>  arch/arm/mach-s5p6440/include/mach/hardware.h    |   18 ++++
>  arch/arm/mach-s5p6440/include/mach/map.h         |  102 +++++++++++++++++++
>  arch/arm/mach-s5p6440/include/mach/memory.h      |   19 ++++
>  arch/arm/mach-s5p6440/include/mach/uncompress.h  |   24 +++++
>  arch/arm/plat-s3c/include/plat/cpu.h             |    2 +
>  arch/arm/plat-s5p/cpu.c                          |   89 +++++++++++++++++
>  arch/arm/plat-s5p/include/plat/s5p6440.h         |   37 +++++++
>  arch/arm/plat-s5p/s5p6440-init.c                 |   50 ++++++++++
>  arch/arm/plat-s5p/setup-i2c0.c                   |   25 +++++
>  14 files changed, 631 insertions(+), 0 deletions(-)
>  create mode 100644 arch/arm/mach-s5p6440/cpu.c
>  create mode 100644 arch/arm/mach-s5p6440/include/mach/debug-macro.S
>  create mode 100644 arch/arm/mach-s5p6440/include/mach/entry-macro.S
>  create mode 100644 arch/arm/mach-s5p6440/include/mach/gpio-core.h
>  create mode 100644 arch/arm/mach-s5p6440/include/mach/gpio.h
>  create mode 100644 arch/arm/mach-s5p6440/include/mach/hardware.h
>  create mode 100644 arch/arm/mach-s5p6440/include/mach/map.h
>  create mode 100644 arch/arm/mach-s5p6440/include/mach/memory.h
>  create mode 100644 arch/arm/mach-s5p6440/include/mach/uncompress.h
>  create mode 100644 arch/arm/plat-s5p/cpu.c
>  create mode 100644 arch/arm/plat-s5p/include/plat/s5p6440.h
>  create mode 100644 arch/arm/plat-s5p/s5p6440-init.c
>  create mode 100644 arch/arm/plat-s5p/setup-i2c0.c
> 
> diff --git a/arch/arm/mach-s5p6440/cpu.c b/arch/arm/mach-s5p6440/cpu.c
> new file mode 100644
> index 0000000..38a6d5e
> --- /dev/null
> +++ b/arch/arm/mach-s5p6440/cpu.c
> @@ -0,0 +1,113 @@
> +/* 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/idle.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;
> +
> +	val = __raw_readl(S5P_PWR_CFG);
> +	val &= ~(0x3<<5);
> +	val |= (0x1<<5);
> +	__raw_writel(val, S5P_PWR_CFG);
> +
> +	cpu_do_idle();
> +}
> +
> +/* 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));
> +}
> +
> +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 */
> +	s3c_idle_fn = s5p6440_idle;
> +	pm_idle = samsung_idle;
> +
> +	return sysdev_register(&s5p6440_sysdev);
> +}
> 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 0000000..f3a5d16
> --- /dev/null
> +++ b/arch/arm/mach-s5p6440/include/mach/debug-macro.S
> @@ -0,0 +1,37 @@
> +/* 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>
> 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 0000000..e65f1b9
> --- /dev/null
> +++ b/arch/arm/mach-s5p6440/include/mach/entry-macro.S
> @@ -0,0 +1,16 @@
> +/* 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>
> 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 0000000..ff7fb30
> --- /dev/null
> +++ b/arch/arm/mach-s5p6440/include/mach/gpio-core.h
> @@ -0,0 +1,19 @@
> +/* 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 */
> 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 0000000..2178383
> --- /dev/null
> +++ b/arch/arm/mach-s5p6440/include/mach/gpio.h
> @@ -0,0 +1,80 @@
> +/* 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 */
> 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 0000000..be8b26e
> --- /dev/null
> +++ b/arch/arm/mach-s5p6440/include/mach/hardware.h
> @@ -0,0 +1,18 @@
> +/* 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 */
> 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 0000000..401436f
> --- /dev/null
> +++ b/arch/arm/mach-s5p6440/include/mach/map.h
> @@ -0,0 +1,102 @@
> +/* 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)
> +
> +#define S5P6440_PA_OTHER	(S5P6440_PA_SYSCON + 0x100)
> +#define S5P_PA_OTHER		S5P6440_PA_OTHER
> +#define S5P_VA_OTHER		(S5P_VA_SYSCON + 0x100)
> +
> +#define S5P6440_PA_PWR		(S5P6440_PA_SYSCON + 0x800)
> +#define S5P_PA_PWR		S5P6440_PA_PWR
> +#define S5P_VA_PWR		(S5P_VA_SYSCON + 0x800)

Do we really need the PA addresses of these sicne they're mapped in one
go?

> +/* 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 */
> 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 0000000..d62910c
> --- /dev/null
> +++ b/arch/arm/mach-s5p6440/include/mach/memory.h
> @@ -0,0 +1,19 @@
> +/* 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 */
> 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 0000000..7c1f600
> --- /dev/null
> +++ b/arch/arm/mach-s5p6440/include/mach/uncompress.h
> @@ -0,0 +1,24 @@
> +/* 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 */
> diff --git a/arch/arm/plat-s3c/include/plat/cpu.h b/arch/arm/plat-s3c/include/plat/cpu.h
> index d1131ca..72b46c4 100644
> --- a/arch/arm/plat-s3c/include/plat/cpu.h
> +++ b/arch/arm/plat-s3c/include/plat/cpu.h
> @@ -48,9 +48,11 @@ 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, u32 cpuid_addr);
>  
>  extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no);
>  
> diff --git a/arch/arm/plat-s5p/cpu.c b/arch/arm/plat-s5p/cpu.c
> new file mode 100644
> index 0000000..34486f6
> --- /dev/null
> +++ b/arch/arm/plat-s5p/cpu.c
> @@ -0,0 +1,89 @@
> +/* 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, u32 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));
> +}
> 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 0000000..a4cd75a
> --- /dev/null
> +++ b/arch/arm/plat-s5p/include/plat/s5p6440.h
> @@ -0,0 +1,37 @@
> +/* 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;
> diff --git a/arch/arm/plat-s5p/s5p6440-init.c b/arch/arm/plat-s5p/s5p6440-init.c
> new file mode 100644
> index 0000000..9017825
> --- /dev/null
> +++ b/arch/arm/plat-s5p/s5p6440-init.c
> @@ -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);
> +}
> diff --git a/arch/arm/plat-s5p/setup-i2c0.c b/arch/arm/plat-s5p/setup-i2c0.c
> new file mode 100644
> index 0000000..67a66e0
> --- /dev/null
> +++ b/arch/arm/plat-s5p/setup-i2c0.c
> @@ -0,0 +1,25 @@
> +/* 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 */
> +}
> -- 
> 1.6.2.5
> 
> 
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> linux-arm-kernel at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

-- 
Ben

Q:      What's a light-year?
A:      One-third less calories than a regular year.