Linux Kernel iMX6
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/* linux/arch/arm/mach-s3c2440/mach-anubis.c
*
* Copyright 2003-2009 Simtec Electronics
* http://armlinux.simtec.co.uk/
* Ben Dooks <ben@simtec.co.uk>
*
* 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/gpio.h>
#include <linux/serial_core.h>
#include <linux/platform_device.h>
#include <linux/ata_platform.h>
#include <linux/i2c.h>
#include <linux/io.h>
#include <linux/sm501.h>
#include <linux/sm501-regs.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/mach-types.h>
#include <plat/regs-serial.h>
#include <mach/regs-gpio.h>
#include <mach/regs-lcd.h>
#include <mach/gpio-samsung.h>
#include <linux/platform_data/mtd-nand-s3c2410.h>
#include <linux/platform_data/i2c-s3c2410.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h>
#include <net/ax88796.h>
#include <plat/clock.h>
#include <plat/devs.h>
#include <plat/cpu.h>
#include <linux/platform_data/asoc-s3c24xx_simtec.h>
#include <plat/samsung-time.h>
#include "anubis.h"
#include "common.h"
#include "simtec.h"
#define COPYRIGHT ", Copyright 2005-2009 Simtec Electronics"
static struct map_desc anubis_iodesc[] __initdata = {
/* ISA IO areas */
{
.virtual = (u32)S3C24XX_VA_ISA_BYTE,
.pfn = __phys_to_pfn(0x0),
.length = SZ_4M,
.type = MT_DEVICE,
}, {
.virtual = (u32)S3C24XX_VA_ISA_WORD,
.pfn = __phys_to_pfn(0x0),
.length = SZ_4M,
.type = MT_DEVICE,
},
/* we could possibly compress the next set down into a set of smaller tables
* pagetables, but that would mean using an L2 section, and it still means
* we cannot actually feed the same register to an LDR due to 16K spacing
*/
/* CPLD control registers */
{
.virtual = (u32)ANUBIS_VA_CTRL1,
.pfn = __phys_to_pfn(ANUBIS_PA_CTRL1),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
.virtual = (u32)ANUBIS_VA_IDREG,
.pfn = __phys_to_pfn(ANUBIS_PA_IDREG),
.length = SZ_4K,
.type = MT_DEVICE,
},
};
#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
static struct s3c2410_uartcfg anubis_uartcfgs[] __initdata = {
[0] = {
.hwport = 0,
.flags = 0,
.ucon = UCON,
.ulcon = ULCON,
.ufcon = UFCON,
.clk_sel = S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
},
[1] = {
.hwport = 2,
.flags = 0,
.ucon = UCON,
.ulcon = ULCON,
.ufcon = UFCON,
.clk_sel = S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
},
};
/* NAND Flash on Anubis board */
static int external_map[] = { 2 };
static int chip0_map[] = { 0 };
static int chip1_map[] = { 1 };
static struct mtd_partition __initdata anubis_default_nand_part[] = {
[0] = {
.name = "Boot Agent",
.size = SZ_16K,
.offset = 0,
},
[1] = {
.name = "/boot",
.size = SZ_4M - SZ_16K,
.offset = SZ_16K,
},
[2] = {
.name = "user1",
.offset = SZ_4M,
.size = SZ_32M - SZ_4M,
},
[3] = {
.name = "user2",
.offset = SZ_32M,
.size = MTDPART_SIZ_FULL,
}
};
static struct mtd_partition __initdata anubis_default_nand_part_large[] = {
[0] = {
.name = "Boot Agent",
.size = SZ_128K,
.offset = 0,
},
[1] = {
.name = "/boot",
.size = SZ_4M - SZ_128K,
.offset = SZ_128K,
},
[2] = {
.name = "user1",
.offset = SZ_4M,
.size = SZ_32M - SZ_4M,
},
[3] = {
.name = "user2",
.offset = SZ_32M,
.size = MTDPART_SIZ_FULL,
}
};
/* the Anubis has 3 selectable slots for nand-flash, the two
* on-board chip areas, as well as the external slot.
*
* Note, there is no current hot-plug support for the External
* socket.
*/
static struct s3c2410_nand_set __initdata anubis_nand_sets[] = {
[1] = {
.name = "External",
.nr_chips = 1,
.nr_map = external_map,
.nr_partitions = ARRAY_SIZE(anubis_default_nand_part),
.partitions = anubis_default_nand_part,
},
[0] = {
.name = "chip0",
.nr_chips = 1,
.nr_map = chip0_map,
.nr_partitions = ARRAY_SIZE(anubis_default_nand_part),
.partitions = anubis_default_nand_part,
},
[2] = {
.name = "chip1",
.nr_chips = 1,
.nr_map = chip1_map,
.nr_partitions = ARRAY_SIZE(anubis_default_nand_part),
.partitions = anubis_default_nand_part,
},
};
static void anubis_nand_select(struct s3c2410_nand_set *set, int slot)
{
unsigned int tmp;
slot = set->nr_map[slot] & 3;
pr_debug("anubis_nand: selecting slot %d (set %p,%p)\n",
slot, set, set->nr_map);
tmp = __raw_readb(ANUBIS_VA_CTRL1);
tmp &= ~ANUBIS_CTRL1_NANDSEL;
tmp |= slot;
pr_debug("anubis_nand: ctrl1 now %02x\n", tmp);
__raw_writeb(tmp, ANUBIS_VA_CTRL1);
}
static struct s3c2410_platform_nand __initdata anubis_nand_info = {
.tacls = 25,
.twrph0 = 55,
.twrph1 = 40,
.nr_sets = ARRAY_SIZE(anubis_nand_sets),
.sets = anubis_nand_sets,
.select_chip = anubis_nand_select,
};
/* IDE channels */
static struct pata_platform_info anubis_ide_platdata = {
.ioport_shift = 5,
};
static struct resource anubis_ide0_resource[] = {
[0] = DEFINE_RES_MEM(S3C2410_CS3, 8 * 32),
[2] = DEFINE_RES_MEM(S3C2410_CS3 + (1 << 26) + (6 * 32), 32),
[3] = DEFINE_RES_IRQ(ANUBIS_IRQ_IDE0),
};
static struct platform_device anubis_device_ide0 = {
.name = "pata_platform",
.id = 0,
.num_resources = ARRAY_SIZE(anubis_ide0_resource),
.resource = anubis_ide0_resource,
.dev = {
.platform_data = &anubis_ide_platdata,
.coherent_dma_mask = ~0,
},
};
static struct resource anubis_ide1_resource[] = {
[0] = DEFINE_RES_MEM(S3C2410_CS4, 8 * 32),
[1] = DEFINE_RES_MEM(S3C2410_CS4 + (1 << 26) + (6 * 32), 32),
[2] = DEFINE_RES_IRQ(ANUBIS_IRQ_IDE0),
};
static struct platform_device anubis_device_ide1 = {
.name = "pata_platform",
.id = 1,
.num_resources = ARRAY_SIZE(anubis_ide1_resource),
.resource = anubis_ide1_resource,
.dev = {
.platform_data = &anubis_ide_platdata,
.coherent_dma_mask = ~0,
},
};
/* Asix AX88796 10/100 ethernet controller */
static struct ax_plat_data anubis_asix_platdata = {
.flags = AXFLG_MAC_FROMDEV,
.wordlength = 2,
.dcr_val = 0x48,
.rcr_val = 0x40,
};
static struct resource anubis_asix_resource[] = {
[0] = DEFINE_RES_MEM(S3C2410_CS5, 0x20 * 0x20),
[1] = DEFINE_RES_IRQ(ANUBIS_IRQ_ASIX),
};
static struct platform_device anubis_device_asix = {
.name = "ax88796",
.id = 0,
.num_resources = ARRAY_SIZE(anubis_asix_resource),
.resource = anubis_asix_resource,
.dev = {
.platform_data = &anubis_asix_platdata,
}
};
/* SM501 */
static struct resource anubis_sm501_resource[] = {
[0] = DEFINE_RES_MEM(S3C2410_CS2, SZ_8M),
[1] = DEFINE_RES_MEM(S3C2410_CS2 + SZ_64M - SZ_2M, SZ_2M),
[2] = DEFINE_RES_IRQ(IRQ_EINT0),
};
static struct sm501_initdata anubis_sm501_initdata = {
.gpio_high = {
.set = 0x3F000000, /* 24bit panel */
.mask = 0x0,
},
.misc_timing = {
.set = 0x010100, /* SDRAM timing */
.mask = 0x1F1F00,
},
.misc_control = {
.set = SM501_MISC_PNL_24BIT,
.mask = 0,
},
.devices = SM501_USE_GPIO,
/* set the SDRAM and bus clocks */
.mclk = 72 * MHZ,
.m1xclk = 144 * MHZ,
};
static struct sm501_platdata_gpio_i2c anubis_sm501_gpio_i2c[] = {
[0] = {
.bus_num = 1,
.pin_scl = 44,
.pin_sda = 45,
},
[1] = {
.bus_num = 2,
.pin_scl = 40,
.pin_sda = 41,
},
};
static struct sm501_platdata anubis_sm501_platdata = {
.init = &anubis_sm501_initdata,
.gpio_base = -1,
.gpio_i2c = anubis_sm501_gpio_i2c,
.gpio_i2c_nr = ARRAY_SIZE(anubis_sm501_gpio_i2c),
};
static struct platform_device anubis_device_sm501 = {
.name = "sm501",
.id = 0,
.num_resources = ARRAY_SIZE(anubis_sm501_resource),
.resource = anubis_sm501_resource,
.dev = {
.platform_data = &anubis_sm501_platdata,
},
};
/* Standard Anubis devices */
static struct platform_device *anubis_devices[] __initdata = {
&s3c_device_ohci,
&s3c_device_wdt,
&s3c_device_adc,
&s3c_device_i2c0,
&s3c_device_rtc,
&s3c_device_nand,
&anubis_device_ide0,
&anubis_device_ide1,
&anubis_device_asix,
&anubis_device_sm501,
};
static struct clk *anubis_clocks[] __initdata = {
&s3c24xx_dclk0,
&s3c24xx_dclk1,
&s3c24xx_clkout0,
&s3c24xx_clkout1,
&s3c24xx_uclk,
};
/* I2C devices. */
static struct i2c_board_info anubis_i2c_devs[] __initdata = {
{
I2C_BOARD_INFO("tps65011", 0x48),
.irq = IRQ_EINT20,
}
};
/* Audio setup */
static struct s3c24xx_audio_simtec_pdata __initdata anubis_audio = {
.have_mic = 1,
.have_lout = 1,
.output_cdclk = 1,
.use_mpllin = 1,
.amp_gpio = S3C2410_GPB(2),
.amp_gain[0] = S3C2410_GPD(10),
.amp_gain[1] = S3C2410_GPD(11),
};
static void __init anubis_map_io(void)
{
/* initialise the clocks */
s3c24xx_dclk0.parent = &clk_upll;
s3c24xx_dclk0.rate = 12*1000*1000;
s3c24xx_dclk1.parent = &clk_upll;
s3c24xx_dclk1.rate = 24*1000*1000;
s3c24xx_clkout0.parent = &s3c24xx_dclk0;
s3c24xx_clkout1.parent = &s3c24xx_dclk1;
s3c24xx_uclk.parent = &s3c24xx_clkout1;
s3c24xx_register_clocks(anubis_clocks, ARRAY_SIZE(anubis_clocks));
s3c24xx_init_io(anubis_iodesc, ARRAY_SIZE(anubis_iodesc));
s3c24xx_init_clocks(0);
s3c24xx_init_uarts(anubis_uartcfgs, ARRAY_SIZE(anubis_uartcfgs));
samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
/* check for the newer revision boards with large page nand */
if ((__raw_readb(ANUBIS_VA_IDREG) & ANUBIS_IDREG_REVMASK) >= 4) {
printk(KERN_INFO "ANUBIS-B detected (revision %d)\n",
__raw_readb(ANUBIS_VA_IDREG) & ANUBIS_IDREG_REVMASK);
anubis_nand_sets[0].partitions = anubis_default_nand_part_large;
anubis_nand_sets[0].nr_partitions = ARRAY_SIZE(anubis_default_nand_part_large);
} else {
/* ensure that the GPIO is setup */
gpio_request_one(S3C2410_GPA(0), GPIOF_OUT_INIT_HIGH, NULL);
gpio_free(S3C2410_GPA(0));
}
}
static void __init anubis_init(void)
{
s3c_i2c0_set_platdata(NULL);
s3c_nand_set_platdata(&anubis_nand_info);
simtec_audio_add(NULL, false, &anubis_audio);
platform_add_devices(anubis_devices, ARRAY_SIZE(anubis_devices));
i2c_register_board_info(0, anubis_i2c_devs,
ARRAY_SIZE(anubis_i2c_devs));
}
MACHINE_START(ANUBIS, "Simtec-Anubis")
/* Maintainer: Ben Dooks <ben@simtec.co.uk> */
.atag_offset = 0x100,
.map_io = anubis_map_io,
.init_machine = anubis_init,
.init_irq = s3c2440_init_irq,
.init_time = samsung_timer_init,
.restart = s3c244x_restart,
MACHINE_END