Release 4.17 arch/arm/mach-ixp4xx/ixdp425-setup.c

Directory: arch/arm/mach-ixp4xx
// SPDX-License-Identifier: GPL-2.0
/*
 * arch/arm/mach-ixp4xx/ixdp425-setup.c
 *
 * IXDP425/IXCDP1100 board-setup
 *
 * Copyright (C) 2003-2005 MontaVista Software, Inc.
 *
 * Author: Deepak Saxena <dsaxena@plexity.net>
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/serial.h>
#include <linux/tty.h>
#include <linux/serial_8250.h>
#include <linux/gpio/machine.h>
#include <linux/io.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <asm/types.h>
#include <asm/setup.h>
#include <asm/memory.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>


#define IXDP425_SDA_PIN		7

#define IXDP425_SCL_PIN		6

/* NAND Flash pins */

#define IXDP425_NAND_NCE_PIN	12


#define IXDP425_NAND_CMD_BYTE	0x01

#define IXDP425_NAND_ADDR_BYTE	0x02


static struct flash_platform_data ixdp425_flash_data = {
	.map_name	= "cfi_probe",
	.width		= 2,
};


static struct resource ixdp425_flash_resource = {
	.flags		= IORESOURCE_MEM,
};


static struct platform_device ixdp425_flash = {
	.name		= "IXP4XX-Flash",
	.id		= 0,
	.dev		= {
		.platform_data = &ixdp425_flash_data,
        },
	.num_resources	= 1,
	.resource	= &ixdp425_flash_resource,
};

#if defined(CONFIG_MTD_NAND_PLATFORM) || \
    defined(CONFIG_MTD_NAND_PLATFORM_MODULE)


static struct mtd_partition ixdp425_partitions[] = {
	{
		.name	= "ixp400 NAND FS 0",
		.offset	= 0,
		.size 	= SZ_8M
	}, {
		.name	= "ixp400 NAND FS 1",
		.offset	= MTDPART_OFS_APPEND,
		.size	= MTDPART_SIZ_FULL
	},
};


static void

ixdp425_flash_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
	struct nand_chip *this = mtd_to_nand(mtd);
	int offset = (int)nand_get_controller_data(this);

	if (ctrl & NAND_CTRL_CHANGE) {
		if (ctrl & NAND_NCE) {
			gpio_set_value(IXDP425_NAND_NCE_PIN, 0);
			udelay(5);
		} else
			gpio_set_value(IXDP425_NAND_NCE_PIN, 1);

		offset = (ctrl & NAND_CLE) ? IXDP425_NAND_CMD_BYTE : 0;
		offset |= (ctrl & NAND_ALE) ? IXDP425_NAND_ADDR_BYTE : 0;
		nand_set_controller_data(this, (void *)offset);
	}

	if (cmd != NAND_CMD_NONE)
		writeb(cmd, this->IO_ADDR_W + offset);
}

Contributors
Person Tokens Prop Commits CommitProp
Vladimir Barinov 113 88.98% 1 25.00%
Boris Brezillon 10 7.87% 2 50.00%
Linus Walleij 4 3.15% 1 25.00%
Total 127 100.00% 4 100.00%


static struct platform_nand_data ixdp425_flash_nand_data = {
	.chip = {
		.nr_chips		= 1,
		.chip_delay		= 30,
		.partitions	 	= ixdp425_partitions,
		.nr_partitions	 	= ARRAY_SIZE(ixdp425_partitions),
        },
	.ctrl = {
		.cmd_ctrl 		= ixdp425_flash_nand_cmd_ctrl
	}
};


static struct resource ixdp425_flash_nand_resource = {
	.flags		= IORESOURCE_MEM,
};


static struct platform_device ixdp425_flash_nand = {
	.name		= "gen_nand",
	.id		= -1,
	.dev		= {
		.platform_data = &ixdp425_flash_nand_data,
        },
	.num_resources	= 1,
	.resource	= &ixdp425_flash_nand_resource,
};
#endif	/* CONFIG_MTD_NAND_PLATFORM */


static struct gpiod_lookup_table ixdp425_i2c_gpiod_table = {
	.dev_id		= "i2c-gpio.0",
	.table		= {
		GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", IXDP425_SDA_PIN,
				NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
		GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", IXDP425_SCL_PIN,
				NULL, 1, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
        },
};


static struct platform_device ixdp425_i2c_gpio = {
	.name		= "i2c-gpio",
	.id		= 0,
	.dev	 = {
		.platform_data	= NULL,
        },
};


static struct resource ixdp425_uart_resources[] = {
	{
		.start		= IXP4XX_UART1_BASE_PHYS,
		.end		= IXP4XX_UART1_BASE_PHYS + 0x0fff,
		.flags		= IORESOURCE_MEM
	},
	{
		.start		= IXP4XX_UART2_BASE_PHYS,
		.end		= IXP4XX_UART2_BASE_PHYS + 0x0fff,
		.flags		= IORESOURCE_MEM
	}
};


static struct plat_serial8250_port ixdp425_uart_data[] = {
	{
		.mapbase	= IXP4XX_UART1_BASE_PHYS,
		.membase	= (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
		.irq		= IRQ_IXP4XX_UART1,
		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
		.iotype		= UPIO_MEM,
		.regshift	= 2,
		.uartclk	= IXP4XX_UART_XTAL,
        },
	{
		.mapbase	= IXP4XX_UART2_BASE_PHYS,
		.membase	= (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
		.irq		= IRQ_IXP4XX_UART2,
		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
		.iotype		= UPIO_MEM,
		.regshift	= 2,
		.uartclk	= IXP4XX_UART_XTAL,
        },
	{ },
};


static struct platform_device ixdp425_uart = {
	.name			= "serial8250",
	.id			= PLAT8250_DEV_PLATFORM,
	.dev.platform_data	= ixdp425_uart_data,
	.num_resources		= 2,
	.resource		= ixdp425_uart_resources
};

/* Built-in 10/100 Ethernet MAC interfaces */

static struct eth_plat_info ixdp425_plat_eth[] = {
	{
		.phy		= 0,
		.rxq		= 3,
		.txreadyq	= 20,
        }, {
		.phy		= 1,
		.rxq		= 4,
		.txreadyq	= 21,
        }
};


static struct platform_device ixdp425_eth[] = {
	{
		.name			= "ixp4xx_eth",
		.id			= IXP4XX_ETH_NPEB,
		.dev.platform_data	= ixdp425_plat_eth,
        }, {
		.name			= "ixp4xx_eth",
		.id			= IXP4XX_ETH_NPEC,
		.dev.platform_data	= ixdp425_plat_eth + 1,
        }
};


static struct platform_device *ixdp425_devices[] __initdata = {
	&ixdp425_i2c_gpio,
	&ixdp425_flash,
#if defined(CONFIG_MTD_NAND_PLATFORM) || \
    defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
	&ixdp425_flash_nand,
#endif
	&ixdp425_uart,
	&ixdp425_eth[0],
	&ixdp425_eth[1],
};



static void __init ixdp425_init(void)
{
	ixp4xx_sys_init();

	ixdp425_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
	ixdp425_flash_resource.end =
		IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;

#if defined(CONFIG_MTD_NAND_PLATFORM) || \
    defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
	ixdp425_flash_nand_resource.start = IXP4XX_EXP_BUS_BASE(3),
	ixdp425_flash_nand_resource.end   = IXP4XX_EXP_BUS_BASE(3) + 0x10 - 1;

	gpio_request(IXDP425_NAND_NCE_PIN, "NAND NCE pin");
	gpio_direction_output(IXDP425_NAND_NCE_PIN, 0);

	/* Configure expansion bus for NAND Flash */
	*IXP4XX_EXP_CS3 = IXP4XX_EXP_BUS_CS_EN |
			  IXP4XX_EXP_BUS_STROBE_T(1) |	/* extend by 1 clock */
			  IXP4XX_EXP_BUS_CYCLES(0) |	/* Intel cycles */
			  IXP4XX_EXP_BUS_SIZE(0) |	/* 512bytes addr space*/
			  IXP4XX_EXP_BUS_WR_EN |
			  IXP4XX_EXP_BUS_BYTE_EN;	/* 8 bit data bus */
#endif

	if (cpu_is_ixp43x()) {
		ixdp425_uart.num_resources = 1;
		ixdp425_uart_data[1].flags = 0;
	}

	gpiod_add_lookup_table(&ixdp425_i2c_gpiod_table);
	platform_add_devices(ixdp425_devices, ARRAY_SIZE(ixdp425_devices));
}

Contributors
Person Tokens Prop Commits CommitProp
Vladimir Barinov 70 46.36% 1 10.00%
Deepak Saxena 44 29.14% 6 60.00%
Ruslan V. Sushko 22 14.57% 1 10.00%
Linus Walleij 15 9.93% 2 20.00%
Total 151 100.00% 10 100.00%

#ifdef CONFIG_ARCH_IXDP425
MACHINE_START(IXDP425, "Intel IXDP425 Development Platform")
	/* Maintainer: MontaVista Software, Inc. */
	.map_io		= ixp4xx_map_io,
	.init_early	= ixp4xx_init_early,
	.init_irq	= ixp4xx_init_irq,
	.init_time	= ixp4xx_timer_init,
	.atag_offset	= 0x100,
	.init_machine	= ixdp425_init,
#if defined(CONFIG_PCI)
	.dma_zone_size	= SZ_64M,
#endif
	.restart	= ixp4xx_restart,
MACHINE_END
#endif

#ifdef CONFIG_MACH_IXDP465
MACHINE_START(IXDP465, "Intel IXDP465 Development Platform")
	/* Maintainer: MontaVista Software, Inc. */
	.map_io		= ixp4xx_map_io,
	.init_early	= ixp4xx_init_early,
	.init_irq	= ixp4xx_init_irq,
	.init_time	= ixp4xx_timer_init,
	.atag_offset	= 0x100,
	.init_machine	= ixdp425_init,
#if defined(CONFIG_PCI)
	.dma_zone_size	= SZ_64M,
#endif
MACHINE_END
#endif

#ifdef CONFIG_ARCH_PRPMC1100
MACHINE_START(IXCDP1100, "Intel IXCDP1100 Development Platform")
	/* Maintainer: MontaVista Software, Inc. */
	.map_io		= ixp4xx_map_io,
	.init_early	= ixp4xx_init_early,
	.init_irq	= ixp4xx_init_irq,
	.init_time	= ixp4xx_timer_init,
	.atag_offset	= 0x100,
	.init_machine	= ixdp425_init,
#if defined(CONFIG_PCI)
	.dma_zone_size	= SZ_64M,
#endif
MACHINE_END
#endif

#ifdef CONFIG_MACH_KIXRP435
MACHINE_START(KIXRP435, "Intel KIXRP435 Reference Platform")
	/* Maintainer: MontaVista Software, Inc. */
	.map_io		= ixp4xx_map_io,
	.init_early	= ixp4xx_init_early,
	.init_irq	= ixp4xx_init_irq,
	.init_time	= ixp4xx_timer_init,
	.atag_offset	= 0x100,
	.init_machine	= ixdp425_init,
#if defined(CONFIG_PCI)
	.dma_zone_size	= SZ_64M,
#endif
MACHINE_END
#endif
Overall Contributors
Person Tokens Prop Commits CommitProp
Deepak Saxena 421 34.85% 12 30.77%
Vladimir Barinov 359 29.72% 1 2.56%
Rod Whitby 104 8.61% 1 2.56%
Russell King 71 5.88% 6 15.38%
Nico Pitre 60 4.97% 2 5.13%
Linus Walleij 59 4.88% 4 10.26%
Ruslan V. Sushko 56 4.64% 1 2.56%
Krzysztof Hałasa 22 1.82% 1 2.56%
Rob Herring 20 1.66% 1 2.56%
Boris Brezillon 11 0.91% 3 7.69%
Stephen Warren 8 0.66% 1 2.56%
Michael-Luke Jones 6 0.50% 1 2.56%
Marek Vašut 5 0.41% 1 2.56%
Stefan Sörensen 3 0.25% 1 2.56%
Jeff Hansen 1 0.08% 1 2.56%
Jamie Iles 1 0.08% 1 2.56%
Greg Kroah-Hartman 1 0.08% 1 2.56%
Total 1208 100.00% 39 100.00%
Directory: arch/arm/mach-ixp4xx

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.
Person	Tokens	Prop	Commits	CommitProp
Vladimir Barinov	113	88.98%	1	25.00%
Boris Brezillon	10	7.87%	2	50.00%
Linus Walleij	4	3.15%	1	25.00%
Total	127	100.00%	4	100.00%
cregit-Linux how code gets into the kernel

Release 4.17 arch/arm/mach-ixp4xx/ixdp425-setup.c

Contributors

Contributors

Overall Contributors
