cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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mach-nexcoder.c (3958B)

      1// SPDX-License-Identifier: GPL-2.0
      2// linux/arch/arm/mach-s3c2440/mach-nexcoder.c
      3//
      4// Copyright (c) 2004 Nex Vision
      5//   Guillaume GOURAT <guillaume.gourat@nexvision.tv>
      6//
      7// Modifications:
      8//     15-10-2004 GG  Created initial version
      9//     12-03-2005 BJD Updated for release
     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/gpio.h>
     18#include <linux/string.h>
     19#include <linux/serial_core.h>
     20#include <linux/serial_s3c.h>
     21#include <linux/platform_device.h>
     22#include <linux/io.h>
     23
     24#include <linux/mtd/map.h>
     25
     26#include <asm/mach/arch.h>
     27#include <asm/mach/map.h>
     28#include <asm/mach/irq.h>
     29
     30#include <asm/setup.h>
     31#include <asm/irq.h>
     32#include <asm/mach-types.h>
     33
     34//#include <asm/debug-ll.h>
     35#include "regs-gpio.h"
     36#include "gpio-samsung.h"
     37#include <linux/platform_data/i2c-s3c2410.h>
     38
     39#include "gpio-cfg.h"
     40#include "devs.h"
     41#include "cpu.h"
     42
     43#include "s3c24xx.h"
     44
     45static struct map_desc nexcoder_iodesc[] __initdata = {
     46	/* nothing here yet */
     47};
     48
     49#define UCON S3C2410_UCON_DEFAULT
     50#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
     51#define UFCON S3C2410_UFCON_RXTRIG12 | S3C2410_UFCON_FIFOMODE
     52
     53static struct s3c2410_uartcfg nexcoder_uartcfgs[] __initdata = {
     54	[0] = {
     55		.hwport	     = 0,
     56		.flags	     = 0,
     57		.ucon	     = UCON,
     58		.ulcon	     = ULCON,
     59		.ufcon	     = UFCON,
     60	},
     61	[1] = {
     62		.hwport	     = 1,
     63		.flags	     = 0,
     64		.ucon	     = UCON,
     65		.ulcon	     = ULCON,
     66		.ufcon	     = UFCON,
     67	},
     68	[2] = {
     69		.hwport	     = 2,
     70		.flags	     = 0,
     71		.ucon	     = UCON,
     72		.ulcon	     = ULCON,
     73		.ufcon	     = UFCON,
     74	}
     75};
     76
     77/* NOR Flash on NexVision NexCoder 2440 board */
     78
     79static struct resource nexcoder_nor_resource[] = {
     80	[0] = DEFINE_RES_MEM(S3C2410_CS0, SZ_8M),
     81};
     82
     83static struct map_info nexcoder_nor_map = {
     84	.bankwidth = 2,
     85};
     86
     87static struct platform_device nexcoder_device_nor = {
     88	.name		= "mtd-flash",
     89	.id		= -1,
     90	.num_resources	= ARRAY_SIZE(nexcoder_nor_resource),
     91	.resource	= nexcoder_nor_resource,
     92	.dev =
     93	{
     94		.platform_data = &nexcoder_nor_map,
     95	}
     96};
     97
     98/* Standard Nexcoder devices */
     99
    100static struct platform_device *nexcoder_devices[] __initdata = {
    101	&s3c_device_ohci,
    102	&s3c_device_lcd,
    103	&s3c_device_wdt,
    104	&s3c_device_i2c0,
    105	&s3c_device_iis,
    106 	&s3c_device_rtc,
    107	&s3c_device_camif,
    108	&s3c_device_spi0,
    109	&s3c_device_spi1,
    110	&nexcoder_device_nor,
    111};
    112
    113static void __init nexcoder_sensorboard_init(void)
    114{
    115	/* Initialize SCCB bus */
    116	gpio_request_one(S3C2410_GPE(14), GPIOF_OUT_INIT_HIGH, NULL);
    117	gpio_free(S3C2410_GPE(14)); /* IICSCL */
    118	gpio_request_one(S3C2410_GPE(15), GPIOF_OUT_INIT_HIGH, NULL);
    119	gpio_free(S3C2410_GPE(15)); /* IICSDA */
    120
    121	/* Power up the sensor board */
    122	gpio_request_one(S3C2410_GPF(1), GPIOF_OUT_INIT_HIGH, NULL);
    123	gpio_free(S3C2410_GPF(1)); /* CAM_GPIO7 => nLDO_PWRDN */
    124	gpio_request_one(S3C2410_GPF(2), GPIOF_OUT_INIT_LOW, NULL);
    125	gpio_free(S3C2410_GPF(2)); /* CAM_GPIO6 => CAM_PWRDN */
    126}
    127
    128static void __init nexcoder_map_io(void)
    129{
    130	s3c24xx_init_io(nexcoder_iodesc, ARRAY_SIZE(nexcoder_iodesc));
    131	s3c24xx_init_uarts(nexcoder_uartcfgs, ARRAY_SIZE(nexcoder_uartcfgs));
    132	s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
    133
    134	nexcoder_sensorboard_init();
    135}
    136
    137static void __init nexcoder_init_time(void)
    138{
    139	s3c2440_init_clocks(12000000);
    140	s3c24xx_timer_init();
    141}
    142
    143static void __init nexcoder_init(void)
    144{
    145	s3c_i2c0_set_platdata(NULL);
    146
    147	/* Configure the I2S pins (GPE0...GPE4) in correct mode */
    148	s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
    149			      S3C_GPIO_PULL_NONE);
    150
    151	platform_add_devices(nexcoder_devices, ARRAY_SIZE(nexcoder_devices));
    152};
    153
    154MACHINE_START(NEXCODER_2440, "NexVision - Nexcoder 2440")
    155	/* Maintainer: Guillaume GOURAT <guillaume.gourat@nexvision.tv> */
    156	.atag_offset	= 0x100,
    157	.nr_irqs	= NR_IRQS_S3C2440,
    158	.map_io		= nexcoder_map_io,
    159	.init_machine	= nexcoder_init,
    160	.init_irq	= s3c2440_init_irq,
    161	.init_time	= nexcoder_init_time,
    162MACHINE_END