Commit 5f7f6a4a authored by Kukjin Kim's avatar Kukjin Kim Committed by Ben Dooks

ARM: S5P6442: Add Samsung S5P6442 CPU support

This patch adds support for Samsung S5P6442 CPU. This patch also adds
an entry for S5P6442 cpu in plat-s5p cpu table.
Signed-off-by: default avatarAdityapratap Sharma <aditya.ps@samsung.com>
Signed-off-by: default avatarAtul Dahiya <atul.dahiya@samsung.com>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
Signed-off-by: default avatarBen Dooks <ben-linux@fluff.org>
parent a0af8b3c
# arch/arm/mach-s5p6442/Kconfig
#
# Copyright (c) 2010 Samsung Electronics Co., Ltd.
# http://www.samsung.com/
#
# Licensed under GPLv2
# Configuration options for the S5P6442
if ARCH_S5P6442
config CPU_S5P6442
bool
select PLAT_S5P
help
Enable S5P6442 CPU support
config MACH_SMDK6442
bool "SMDK6442"
select CPU_S5P6442
help
Machine support for Samsung SMDK6442
endif
# arch/arm/mach-s5p6442/Makefile
#
# Copyright (c) 2010 Samsung Electronics Co., Ltd.
# http://www.samsung.com/
#
# Licensed under GPLv2
obj-y :=
obj-m :=
obj-n :=
obj- :=
# Core support for S5P6442 system
obj-$(CONFIG_CPU_S5P6442) += cpu.o init.o
# machine support
zreladdr-y := 0x20008000
params_phys-y := 0x20000100
/* linux/arch/arm/mach-s5p6442/cpu.c
*
* Copyright (c) 2010 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/s5p6442.h>
/* Initial IO mappings */
static struct map_desc s5p6442_iodesc[] __initdata = {
{
.virtual = (unsigned long)S5P_VA_SYSTIMER,
.pfn = __phys_to_pfn(S5P6442_PA_SYSTIMER),
.length = SZ_16K,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)VA_VIC2,
.pfn = __phys_to_pfn(S5P6442_PA_VIC2),
.length = SZ_16K,
.type = MT_DEVICE,
}
};
static void s5p6442_idle(void)
{
if (!need_resched())
cpu_do_idle();
local_irq_enable();
}
/* s5p6442_map_io
*
* register the standard cpu IO areas
*/
void __init s5p6442_map_io(void)
{
iotable_init(s5p6442_iodesc, ARRAY_SIZE(s5p6442_iodesc));
}
void __init s5p6442_init_clocks(int xtal)
{
printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
s3c24xx_register_baseclocks(xtal);
s5p_register_clocks(xtal);
s5p6442_register_clocks();
s5p6442_setup_clocks();
}
void __init s5p6442_init_irq(void)
{
/* S5P6442 supports 3 VIC */
u32 vic[3];
/* VIC0, VIC1, and VIC2: some interrupt reserved */
vic[0] = 0x7fefffff;
vic[1] = 0X7f389c81;
vic[2] = 0X1bbbcfff;
s5p_init_irq(vic, ARRAY_SIZE(vic));
}
static struct sysdev_class s5p6442_sysclass = {
.name = "s5p6442-core",
};
static struct sys_device s5p6442_sysdev = {
.cls = &s5p6442_sysclass,
};
static int __init s5p6442_core_init(void)
{
return sysdev_class_register(&s5p6442_sysclass);
}
core_initcall(s5p6442_core_init);
int __init s5p6442_init(void)
{
printk(KERN_INFO "S5P6442: Initializing architecture\n");
/* set idle function */
pm_idle = s5p6442_idle;
return sysdev_register(&s5p6442_sysdev);
}
/* linux/arch/arm/mach-s5p6442/include/mach/debug-macro.S
*
* Copyright (c) 2010 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* Based on arch/arm/mach-s3c6400/include/mach/debug-macro.S
*
* 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>
.macro addruart, rx
mrc p15, 0, \rx, c1, c0
tst \rx, #1
ldreq \rx, = S3C_PA_UART
ldrne \rx, = S3C_VA_UART
#if CONFIG_DEBUG_S3C_UART != 0
add \rx, \rx, #(0x400 * CONFIG_DEBUG_S3C_UART)
#endif
.endm
#define fifo_full fifo_full_s5pv210
#define fifo_level fifo_level_s5pv210
/* 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>
/* linux/arch/arm/mach-s5p6442/include/mach/entry-macro.S
*
* Copyright (c) 2010 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* Low-level IRQ helper macros for the Samsung S5P6442
*
* 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 <asm/hardware/vic.h>
#include <mach/map.h>
#include <plat/irqs.h>
.macro disable_fiq
.endm
.macro get_irqnr_preamble, base, tmp
ldr \base, =VA_VIC0
.endm
.macro arch_ret_to_user, tmp1, tmp2
.endm
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
@ check the vic0
mov \irqnr, # S5P_IRQ_OFFSET + 31
ldr \irqstat, [ \base, # VIC_IRQ_STATUS ]
teq \irqstat, #0
@ otherwise try vic1
addeq \tmp, \base, #(VA_VIC1 - VA_VIC0)
addeq \irqnr, \irqnr, #32
ldreq \irqstat, [ \tmp, # VIC_IRQ_STATUS ]
teqeq \irqstat, #0
@ otherwise try vic2
addeq \tmp, \base, #(VA_VIC2 - VA_VIC0)
addeq \irqnr, \irqnr, #32
ldreq \irqstat, [ \tmp, # VIC_IRQ_STATUS ]
teqeq \irqstat, #0
clzne \irqstat, \irqstat
subne \irqnr, \irqnr, \irqstat
.endm
/* linux/arch/arm/mach-s5p6442/include/mach/gpio.h
*
* Copyright (c) 2010 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* S5P6442 - 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 S5P6442_GPIO_A0_NR (8)
#define S5P6442_GPIO_A1_NR (2)
#define S5P6442_GPIO_B_NR (4)
#define S5P6442_GPIO_C0_NR (5)
#define S5P6442_GPIO_C1_NR (5)
#define S5P6442_GPIO_D0_NR (2)
#define S5P6442_GPIO_D1_NR (6)
#define S5P6442_GPIO_E0_NR (8)
#define S5P6442_GPIO_E1_NR (5)
#define S5P6442_GPIO_F0_NR (8)
#define S5P6442_GPIO_F1_NR (8)
#define S5P6442_GPIO_F2_NR (8)
#define S5P6442_GPIO_F3_NR (6)
#define S5P6442_GPIO_G0_NR (7)
#define S5P6442_GPIO_G1_NR (7)
#define S5P6442_GPIO_G2_NR (7)
#define S5P6442_GPIO_H0_NR (8)
#define S5P6442_GPIO_H1_NR (8)
#define S5P6442_GPIO_H2_NR (8)
#define S5P6442_GPIO_H3_NR (8)
#define S5P6442_GPIO_J0_NR (8)
#define S5P6442_GPIO_J1_NR (6)
#define S5P6442_GPIO_J2_NR (8)
#define S5P6442_GPIO_J3_NR (8)
#define S5P6442_GPIO_J4_NR (5)
/* 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 S5P6442_GPIO_NEXT(__gpio) \
((__gpio##_START) + (__gpio##_NR) + CONFIG_S3C_GPIO_SPACE + 1)
enum s5p_gpio_number {
S5P6442_GPIO_A0_START = 0,
S5P6442_GPIO_A1_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_A0),
S5P6442_GPIO_B_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_A1),
S5P6442_GPIO_C0_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_B),
S5P6442_GPIO_C1_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_C0),
S5P6442_GPIO_D0_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_C1),
S5P6442_GPIO_D1_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_D0),
S5P6442_GPIO_E0_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_D1),
S5P6442_GPIO_E1_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_E0),
S5P6442_GPIO_F0_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_E1),
S5P6442_GPIO_F1_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_F0),
S5P6442_GPIO_F2_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_F1),
S5P6442_GPIO_F3_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_F2),
S5P6442_GPIO_G0_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_F3),
S5P6442_GPIO_G1_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_G0),
S5P6442_GPIO_G2_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_G1),
S5P6442_GPIO_H0_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_G2),
S5P6442_GPIO_H1_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_H0),
S5P6442_GPIO_H2_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_H1),
S5P6442_GPIO_H3_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_H2),
S5P6442_GPIO_J0_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_H3),
S5P6442_GPIO_J1_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_J0),
S5P6442_GPIO_J2_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_J1),
S5P6442_GPIO_J3_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_J2),
S5P6442_GPIO_J4_START = S5P6442_GPIO_NEXT(S5P6442_GPIO_J3),
};
/* S5P6442 GPIO number definitions. */
#define S5P6442_GPA0(_nr) (S5P6442_GPIO_A0_START + (_nr))
#define S5P6442_GPA1(_nr) (S5P6442_GPIO_A1_START + (_nr))
#define S5P6442_GPB(_nr) (S5P6442_GPIO_B_START + (_nr))
#define S5P6442_GPC0(_nr) (S5P6442_GPIO_C0_START + (_nr))
#define S5P6442_GPC1(_nr) (S5P6442_GPIO_C1_START + (_nr))
#define S5P6442_GPD0(_nr) (S5P6442_GPIO_D0_START + (_nr))
#define S5P6442_GPD1(_nr) (S5P6442_GPIO_D1_START + (_nr))
#define S5P6442_GPE0(_nr) (S5P6442_GPIO_E0_START + (_nr))
#define S5P6442_GPE1(_nr) (S5P6442_GPIO_E1_START + (_nr))
#define S5P6442_GPF0(_nr) (S5P6442_GPIO_F0_START + (_nr))
#define S5P6442_GPF1(_nr) (S5P6442_GPIO_F1_START + (_nr))
#define S5P6442_GPF2(_nr) (S5P6442_GPIO_F2_START + (_nr))
#define S5P6442_GPF3(_nr) (S5P6442_GPIO_F3_START + (_nr))
#define S5P6442_GPG0(_nr) (S5P6442_GPIO_G0_START + (_nr))
#define S5P6442_GPG1(_nr) (S5P6442_GPIO_G1_START + (_nr))
#define S5P6442_GPG2(_nr) (S5P6442_GPIO_G2_START + (_nr))
#define S5P6442_GPH0(_nr) (S5P6442_GPIO_H0_START + (_nr))
#define S5P6442_GPH1(_nr) (S5P6442_GPIO_H1_START + (_nr))
#define S5P6442_GPH2(_nr) (S5P6442_GPIO_H2_START + (_nr))
#define S5P6442_GPH3(_nr) (S5P6442_GPIO_H3_START + (_nr))
#define S5P6442_GPJ0(_nr) (S5P6442_GPIO_J0_START + (_nr))
#define S5P6442_GPJ1(_nr) (S5P6442_GPIO_J1_START + (_nr))
#define S5P6442_GPJ2(_nr) (S5P6442_GPIO_J2_START + (_nr))
#define S5P6442_GPJ3(_nr) (S5P6442_GPIO_J3_START + (_nr))
#define S5P6442_GPJ4(_nr) (S5P6442_GPIO_J4_START + (_nr))
/* the end of the S5P6442 specific gpios */
#define S5P6442_GPIO_END (S5P6442_GPJ4(S5P6442_GPIO_J4_NR) + 1)
#define S3C_GPIO_END S5P6442_GPIO_END
/* define the number of gpios we need to the one after the GPJ4() range */
#define ARCH_NR_GPIOS (S5P6442_GPJ4(S5P6442_GPIO_J4_NR) + \
CONFIG_SAMSUNG_GPIO_EXTRA + 1)
#include <asm-generic/gpio.h>
#endif /* __ASM_ARCH_GPIO_H */
/* linux/arch/arm/mach-s5p6442/include/mach/hardware.h
*
* Copyright (c) 2010 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* S5P6442 - 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 */
/* linux/arch/arm/mach-s5p6442/include/mach/map.h
*
* Copyright (c) 2010 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* S5P6442 - 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>
#include <plat/map-s5p.h>
#define S5P6442_PA_CHIPID (0xE0000000)
#define S5P_PA_CHIPID S5P6442_PA_CHIPID
#define S5P6442_PA_SYSCON (0xE0100000)
#define S5P_PA_SYSCON S5P6442_PA_SYSCON
#define S5P6442_PA_GPIO (0xE0200000)
#define S5P_PA_GPIO S5P6442_PA_GPIO
#define S5P6442_PA_VIC0 (0xE4000000)
#define S5P_PA_VIC0 S5P6442_PA_VIC0
#define S5P6442_PA_VIC1 (0xE4100000)
#define S5P_PA_VIC1 S5P6442_PA_VIC1
#define S5P6442_PA_VIC2 (0xE4200000)
#define S5P_PA_VIC2 S5P6442_PA_VIC2
#define S5P6442_PA_TIMER (0xEA000000)
#define S5P_PA_TIMER S5P6442_PA_TIMER
#define S5P6442_PA_SYSTIMER (0xEA100000)
#define S5P6442_PA_UART (0xEC000000)
#define S5P_PA_UART0 (S5P6442_PA_UART + 0x0)
#define S5P_PA_UART1 (S5P6442_PA_UART + 0x400)
#define S5P_PA_UART2 (S5P6442_PA_UART + 0x800)
#define S5P_SZ_UART SZ_256
#define S5P6442_PA_IIC0 (0xEC100000)
#define S5P6442_PA_SDRAM (0x20000000)
#define S5P_PA_SDRAM S5P6442_PA_SDRAM
/* compatibiltiy defines. */
#define S3C_PA_UART S5P6442_PA_UART
#define S3C_PA_IIC S5P6442_PA_IIC0
#endif /* __ASM_ARCH_MAP_H */
/* linux/arch/arm/mach-s5p6442/include/mach/memory.h
*
* Copyright (c) 2010 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* S5P6442 - 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 */
/* linux/arch/arm/mach-s5p6442/include/mach/system.h
*
* Copyright (c) 2010 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* S5P6442 - 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 */
/* linux/arch/arm/mach-s5p6442/include/mach/uncompress.h
*
* Copyright (c) 2010 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* S5P6442 - 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 */
/* linux/arch/arm/mach-s5p6442/s5p6442-init.c
*
* Copyright (c) 2010 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/s5p6442.h>
#include <plat/regs-serial.h>
static struct s3c24xx_uart_clksrc s5p6442_serial_clocks[] = {
[0] = {
.name = "pclk",
.divisor = 1,
.min_baud = 0,
.max_baud = 0,
},
};
/* uart registration process */
void __init s5p6442_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 = s5p6442_serial_clocks;
tcfg->clocks_size = ARRAY_SIZE(s5p6442_serial_clocks);
}
}
s3c24xx_init_uartdevs("s5pv210-uart", s5p_uart_resources, cfg, no);
}
......@@ -18,10 +18,12 @@
#include <mach/regs-clock.h>
#include <plat/cpu.h>
#include <plat/s5p6440.h>
#include <plat/s5p6442.h>
/* table of supported CPUs */
static const char name_s5p6440[] = "S5P6440";
static const char name_s5p6442[] = "S5P6442";
static struct cpu_table cpu_ids[] __initdata = {
{
......@@ -32,6 +34,14 @@ static struct cpu_table cpu_ids[] __initdata = {
.init_uarts = s5p6440_init_uarts,
.init = s5p6440_init,
.name = name_s5p6440,
}, {
.idcode = 0x36442000,
.idmask = 0xffffff00,
.map_io = s5p6442_map_io,
.init_clocks = s5p6442_init_clocks,
.init_uarts = s5p6442_init_uarts,
.init = s5p6442_init,
.name = name_s5p6442,
},
};
......
......@@ -28,5 +28,6 @@
#define VA_VIC(x) (S3C_VA_IRQ + ((x) * 0x10000))
#define VA_VIC0 VA_VIC(0)
#define VA_VIC1 VA_VIC(1)
#define VA_VIC2 VA_VIC(2)
#endif /* __ASM_PLAT_MAP_S5P_H */
/* arch/arm/plat-s5p/include/plat/s5p6442.h
*
* Copyright (c) 2010 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* Header file for s5p6442 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 S5P6442 related SoCs */
extern void s5p6442_common_init_uarts(struct s3c2410_uartcfg *cfg, int no);
extern void s5p6442_register_clocks(void);
extern void s5p6442_setup_clocks(void);
#ifdef CONFIG_CPU_S5P6442
extern int s5p6442_init(void);
extern void s5p6442_init_irq(void);
extern void s5p6442_map_io(void);
extern void s5p6442_init_clocks(int xtal);
#define s5p6442_init_uarts s5p6442_common_init_uarts
#else
#define s5p6442_init_clocks NULL
#define s5p6442_init_uarts NULL
#define s5p6442_map_io NULL
#define s5p6442_init NULL
#endif
......@@ -11,6 +11,18 @@
#include <plat/regs-serial.h>
/* The S5PV210/S5PC110 and S5P6442 implementations are as belows. */
.macro fifo_level_s5pv210 rd, rx
ldr \rd, [ \rx, # S3C2410_UFSTAT ]
and \rd, \rd, #S5PV210_UFSTAT_TXMASK
.endm
.macro fifo_full_s5pv210 rd, rx
ldr \rd, [ \rx, # S3C2410_UFSTAT ]
tst \rd, #S5PV210_UFSTAT_TXFULL
.endm
/* The S3C2440 implementations are used by default as they are the
* most widely re-used */
......
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