arm/mach-s3c/mach-vr1000.c

0001 // SPDX-License-Identifier: GPL-2.0
0002 //
0003 // Copyright (c) 2003-2008 Simtec Electronics
0004 //   Ben Dooks <ben@simtec.co.uk>
0005 //
0006 // Machine support for Thorcom VR1000 board. Designed for Thorcom by
0007 // Simtec Electronics, http://www.simtec.co.uk/
0008
0009 #include <linux/kernel.h>
0010 #include <linux/types.h>
0011 #include <linux/interrupt.h>
0012 #include <linux/list.h>
0013 #include <linux/timer.h>
0014 #include <linux/init.h>
0015 #include <linux/gpio.h>
0016 #include <linux/gpio/machine.h>
0017 #include <linux/dm9000.h>
0018 #include <linux/i2c.h>
0019
0020 #include <linux/serial.h>
0021 #include <linux/tty.h>
0022 #include <linux/serial_8250.h>
0023 #include <linux/serial_reg.h>
0024 #include <linux/serial_s3c.h>
0025 #include <linux/io.h>
0026
0027 #include <asm/mach/arch.h>
0028 #include <asm/mach/map.h>
0029 #include <asm/mach/irq.h>
0030
0031 #include <asm/irq.h>
0032 #include <asm/mach-types.h>
0033
0034 #include <linux/platform_data/leds-s3c24xx.h>
0035 #include <linux/platform_data/i2c-s3c2410.h>
0036 #include <linux/platform_data/asoc-s3c24xx_simtec.h>
0037
0038 #include "regs-gpio.h"
0039 #include "gpio-samsung.h"
0040 #include "gpio-cfg.h"
0041
0042 #include "cpu.h"
0043 #include "devs.h"
0044
0045 #include "bast.h"
0046 #include "s3c24xx.h"
0047 #include "simtec.h"
0048 #include "vr1000.h"
0049
0050 /* macros for virtual address mods for the io space entries */
0051 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
0052 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
0053 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
0054 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
0055
0056 /* macros to modify the physical addresses for io space */
0057
0058 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
0059 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
0060 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
0061 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
0062
0063 static struct map_desc vr1000_iodesc[] __initdata = {
0064   /* ISA IO areas */
0065   {
0066       .virtual  = (u32)S3C24XX_VA_ISA_BYTE,
0067       .pfn      = PA_CS2(BAST_PA_ISAIO),
0068       .length   = SZ_16M,
0069       .type     = MT_DEVICE,
0070   },
0071
0072   /*  CPLD control registers, and external interrupt controls */
0073   {
0074       .virtual  = (u32)VR1000_VA_CTRL1,
0075       .pfn      = __phys_to_pfn(VR1000_PA_CTRL1),
0076       .length   = SZ_1M,
0077       .type     = MT_DEVICE,
0078   }, {
0079       .virtual  = (u32)VR1000_VA_CTRL2,
0080       .pfn      = __phys_to_pfn(VR1000_PA_CTRL2),
0081       .length   = SZ_1M,
0082       .type     = MT_DEVICE,
0083   }, {
0084       .virtual  = (u32)VR1000_VA_CTRL3,
0085       .pfn      = __phys_to_pfn(VR1000_PA_CTRL3),
0086       .length   = SZ_1M,
0087       .type     = MT_DEVICE,
0088   }, {
0089       .virtual  = (u32)VR1000_VA_CTRL4,
0090       .pfn      = __phys_to_pfn(VR1000_PA_CTRL4),
0091       .length   = SZ_1M,
0092       .type     = MT_DEVICE,
0093   },
0094 };
0095
0096 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
0097 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
0098 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
0099
0100 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
0101     [0] = {
0102         .hwport      = 0,
0103         .flags       = 0,
0104         .ucon        = UCON,
0105         .ulcon       = ULCON,
0106         .ufcon       = UFCON,
0107     },
0108     [1] = {
0109         .hwport      = 1,
0110         .flags       = 0,
0111         .ucon        = UCON,
0112         .ulcon       = ULCON,
0113         .ufcon       = UFCON,
0114     },
0115     /* port 2 is not actually used */
0116     [2] = {
0117         .hwport      = 2,
0118         .flags       = 0,
0119         .ucon        = UCON,
0120         .ulcon       = ULCON,
0121         .ufcon       = UFCON,
0122     }
0123 };
0124
0125 /* definitions for the vr1000 extra 16550 serial ports */
0126
0127 #define VR1000_BAUDBASE (3692307)
0128
0129 #define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
0130
0131 static struct plat_serial8250_port serial_platform_data[] = {
0132     [0] = {
0133         .mapbase    = VR1000_SERIAL_MAPBASE(0),
0134         .irq        = VR1000_IRQ_SERIAL + 0,
0135         .flags      = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
0136         .iotype     = UPIO_MEM,
0137         .regshift   = 0,
0138         .uartclk    = VR1000_BAUDBASE,
0139     },
0140     [1] = {
0141         .mapbase    = VR1000_SERIAL_MAPBASE(1),
0142         .irq        = VR1000_IRQ_SERIAL + 1,
0143         .flags      = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
0144         .iotype     = UPIO_MEM,
0145         .regshift   = 0,
0146         .uartclk    = VR1000_BAUDBASE,
0147     },
0148     [2] = {
0149         .mapbase    = VR1000_SERIAL_MAPBASE(2),
0150         .irq        = VR1000_IRQ_SERIAL + 2,
0151         .flags      = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
0152         .iotype     = UPIO_MEM,
0153         .regshift   = 0,
0154         .uartclk    = VR1000_BAUDBASE,
0155     },
0156     [3] = {
0157         .mapbase    = VR1000_SERIAL_MAPBASE(3),
0158         .irq        = VR1000_IRQ_SERIAL + 3,
0159         .flags      = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
0160         .iotype     = UPIO_MEM,
0161         .regshift   = 0,
0162         .uartclk    = VR1000_BAUDBASE,
0163     },
0164     { },
0165 };
0166
0167 static struct platform_device serial_device = {
0168     .name           = "serial8250",
0169     .id         = PLAT8250_DEV_PLATFORM,
0170     .dev            = {
0171         .platform_data  = serial_platform_data,
0172     },
0173 };
0174
0175 /* DM9000 ethernet devices */
0176
0177 static struct resource vr1000_dm9k0_resource[] = {
0178     [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000, 4),
0179     [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x40, 0x40),
0180     [2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000A, 1, NULL, IORESOURCE_IRQ \
0181                         | IORESOURCE_IRQ_HIGHLEVEL),
0182 };
0183
0184 static struct resource vr1000_dm9k1_resource[] = {
0185     [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x80, 4),
0186     [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0, 0x40),
0187     [2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000N, 1, NULL, IORESOURCE_IRQ \
0188                         | IORESOURCE_IRQ_HIGHLEVEL),
0189 };
0190
0191 /* for the moment we limit ourselves to 16bit IO until some
0192  * better IO routines can be written and tested
0193 */
0194
0195 static struct dm9000_plat_data vr1000_dm9k_platdata = {
0196     .flags      = DM9000_PLATF_16BITONLY,
0197 };
0198
0199 static struct platform_device vr1000_dm9k0 = {
0200     .name       = "dm9000",
0201     .id     = 0,
0202     .num_resources  = ARRAY_SIZE(vr1000_dm9k0_resource),
0203     .resource   = vr1000_dm9k0_resource,
0204     .dev        = {
0205         .platform_data = &vr1000_dm9k_platdata,
0206     }
0207 };
0208
0209 static struct platform_device vr1000_dm9k1 = {
0210     .name       = "dm9000",
0211     .id     = 1,
0212     .num_resources  = ARRAY_SIZE(vr1000_dm9k1_resource),
0213     .resource   = vr1000_dm9k1_resource,
0214     .dev        = {
0215         .platform_data = &vr1000_dm9k_platdata,
0216     }
0217 };
0218
0219 /* LEDS */
0220
0221 static struct gpiod_lookup_table vr1000_led1_gpio_table = {
0222     .dev_id = "s3c24xx_led.1",
0223     .table = {
0224         GPIO_LOOKUP("GPB", 0, NULL, GPIO_ACTIVE_HIGH),
0225         { },
0226     },
0227 };
0228
0229 static struct gpiod_lookup_table vr1000_led2_gpio_table = {
0230     .dev_id = "s3c24xx_led.2",
0231     .table = {
0232         GPIO_LOOKUP("GPB", 1, NULL, GPIO_ACTIVE_HIGH),
0233         { },
0234     },
0235 };
0236
0237 static struct gpiod_lookup_table vr1000_led3_gpio_table = {
0238     .dev_id = "s3c24xx_led.3",
0239     .table = {
0240         GPIO_LOOKUP("GPB", 2, NULL, GPIO_ACTIVE_HIGH),
0241         { },
0242     },
0243 };
0244
0245 static struct s3c24xx_led_platdata vr1000_led1_pdata = {
0246     .name       = "led1",
0247     .def_trigger    = "",
0248 };
0249
0250 static struct s3c24xx_led_platdata vr1000_led2_pdata = {
0251     .name       = "led2",
0252     .def_trigger    = "",
0253 };
0254
0255 static struct s3c24xx_led_platdata vr1000_led3_pdata = {
0256     .name       = "led3",
0257     .def_trigger    = "",
0258 };
0259
0260 static struct platform_device vr1000_led1 = {
0261     .name       = "s3c24xx_led",
0262     .id     = 1,
0263     .dev        = {
0264         .platform_data  = &vr1000_led1_pdata,
0265     },
0266 };
0267
0268 static struct platform_device vr1000_led2 = {
0269     .name       = "s3c24xx_led",
0270     .id     = 2,
0271     .dev        = {
0272         .platform_data  = &vr1000_led2_pdata,
0273     },
0274 };
0275
0276 static struct platform_device vr1000_led3 = {
0277     .name       = "s3c24xx_led",
0278     .id     = 3,
0279     .dev        = {
0280         .platform_data  = &vr1000_led3_pdata,
0281     },
0282 };
0283
0284 /* I2C devices. */
0285
0286 static struct i2c_board_info vr1000_i2c_devs[] __initdata = {
0287     {
0288         I2C_BOARD_INFO("tlv320aic23", 0x1a),
0289     }, {
0290         I2C_BOARD_INFO("tmp101", 0x48),
0291     }, {
0292         I2C_BOARD_INFO("m41st87", 0x68),
0293     },
0294 };
0295
0296 /* devices for this board */
0297
0298 static struct platform_device *vr1000_devices[] __initdata = {
0299     &s3c2410_device_dclk,
0300     &s3c_device_ohci,
0301     &s3c_device_lcd,
0302     &s3c_device_wdt,
0303     &s3c_device_i2c0,
0304     &s3c_device_adc,
0305     &serial_device,
0306     &vr1000_dm9k0,
0307     &vr1000_dm9k1,
0308     &vr1000_led1,
0309     &vr1000_led2,
0310     &vr1000_led3,
0311 };
0312
0313 static void vr1000_power_off(void)
0314 {
0315     gpio_direction_output(S3C2410_GPB(9), 1);
0316 }
0317
0318 static void __init vr1000_map_io(void)
0319 {
0320     pm_power_off = vr1000_power_off;
0321
0322     s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
0323     s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
0324     s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
0325 }
0326
0327 static void __init vr1000_init_time(void)
0328 {
0329     s3c2410_init_clocks(12000000);
0330     s3c24xx_timer_init();
0331 }
0332
0333 static void __init vr1000_init(void)
0334 {
0335     s3c_i2c0_set_platdata(NULL);
0336
0337     /* Disable pull-up on LED lines and register GPIO lookups */
0338     s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
0339     s3c_gpio_setpull(S3C2410_GPB(1), S3C_GPIO_PULL_NONE);
0340     s3c_gpio_setpull(S3C2410_GPB(2), S3C_GPIO_PULL_NONE);
0341     gpiod_add_lookup_table(&vr1000_led1_gpio_table);
0342     gpiod_add_lookup_table(&vr1000_led2_gpio_table);
0343     gpiod_add_lookup_table(&vr1000_led3_gpio_table);
0344
0345     platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
0346
0347     i2c_register_board_info(0, vr1000_i2c_devs,
0348                 ARRAY_SIZE(vr1000_i2c_devs));
0349
0350     nor_simtec_init();
0351     simtec_audio_add(NULL, true, NULL);
0352
0353     WARN_ON(gpio_request(S3C2410_GPB(9), "power off"));
0354 }
0355
0356 MACHINE_START(VR1000, "Thorcom-VR1000")
0357     /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
0358     .atag_offset    = 0x100,
0359     .nr_irqs    = NR_IRQS_S3C2410,
0360     .map_io     = vr1000_map_io,
0361     .init_machine   = vr1000_init,
0362     .init_irq   = s3c2410_init_irq,
0363     .init_time  = vr1000_init_time,
0364 MACHINE_END