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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* arch/arm/mach-iop32x/iq80321.c
*
* Board support code for the Intel IQ80321 platform.
*
* Author: Rory Bolt <rorybolt@pacbell.net>
* Copyright (C) 2002 Rory Bolt
* Copyright (C) 2004 Intel Corp.
*/
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/string.h>
#include <linux/serial_core.h>
#include <linux/serial_8250.h>
#include <linux/mtd/physmap.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/gpio/machine.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/pci.h>
#include <asm/mach/time.h>
#include <asm/mach-types.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include "hardware.h"
#include "irqs.h"
#include "gpio-iop32x.h"
/*
* IQ80321 timer tick configuration.
*/
static void __init iq80321_timer_init(void)
{
/* 33.333 MHz crystal. */
iop_init_time(200000000);
}
/*
* IQ80321 I/O.
*/
static struct map_desc iq80321_io_desc[] __initdata = {
{ /* on-board devices */
.virtual = IQ80321_UART,
.pfn = __phys_to_pfn(IQ80321_UART),
.length = 0x00100000,
.type = MT_DEVICE,
},
};
void __init iq80321_map_io(void)
{
iop3xx_map_io();
iotable_init(iq80321_io_desc, ARRAY_SIZE(iq80321_io_desc));
}
/*
* IQ80321 PCI.
*/
static int __init
iq80321_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int irq;
if ((slot == 2 || slot == 6) && pin == 1) {
/* PCI-X Slot INTA */
irq = IRQ_IOP32X_XINT2;
} else if ((slot == 2 || slot == 6) && pin == 2) {
/* PCI-X Slot INTA */
irq = IRQ_IOP32X_XINT3;
} else if ((slot == 2 || slot == 6) && pin == 3) {
/* PCI-X Slot INTA */
irq = IRQ_IOP32X_XINT0;
} else if ((slot == 2 || slot == 6) && pin == 4) {
/* PCI-X Slot INTA */
irq = IRQ_IOP32X_XINT1;
} else if (slot == 4 || slot == 8) {
/* Gig-E */
irq = IRQ_IOP32X_XINT0;
} else {
printk(KERN_ERR "iq80321_pci_map_irq() called for unknown "
"device PCI:%d:%d:%d\n", dev->bus->number,
PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
irq = -1;
}
return irq;
}
static struct hw_pci iq80321_pci __initdata = {
.nr_controllers = 1,
.ops = &iop3xx_ops,
.setup = iop3xx_pci_setup,
.preinit = iop3xx_pci_preinit_cond,
.map_irq = iq80321_pci_map_irq,
};
static int __init iq80321_pci_init(void)
{
if ((iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) &&
machine_is_iq80321())
pci_common_init(&iq80321_pci);
return 0;
}
subsys_initcall(iq80321_pci_init);
/*
* IQ80321 machine initialisation.
*/
static struct physmap_flash_data iq80321_flash_data = {
.width = 1,
};
static struct resource iq80321_flash_resource = {
.start = 0xf0000000,
.end = 0xf07fffff,
.flags = IORESOURCE_MEM,
};
static struct platform_device iq80321_flash_device = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &iq80321_flash_data,
},
.num_resources = 1,
.resource = &iq80321_flash_resource,
};
static struct plat_serial8250_port iq80321_serial_port[] = {
{
.mapbase = IQ80321_UART,
.membase = (char *)IQ80321_UART,
.irq = IRQ_IOP32X_XINT1,
.flags = UPF_SKIP_TEST,
.iotype = UPIO_MEM,
.regshift = 0,
.uartclk = 1843200,
},
{ },
};
static struct resource iq80321_uart_resource = {
.start = IQ80321_UART,
.end = IQ80321_UART + 7,
.flags = IORESOURCE_MEM,
};
static struct platform_device iq80321_serial_device = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = iq80321_serial_port,
},
.num_resources = 1,
.resource = &iq80321_uart_resource,
};
static void __init iq80321_init_machine(void)
{
register_iop32x_gpio();
gpiod_add_lookup_table(&iop3xx_i2c0_gpio_lookup);
gpiod_add_lookup_table(&iop3xx_i2c1_gpio_lookup);
platform_device_register(&iop3xx_i2c0_device);
platform_device_register(&iop3xx_i2c1_device);
platform_device_register(&iq80321_flash_device);
platform_device_register(&iq80321_serial_device);
platform_device_register(&iop3xx_dma_0_channel);
platform_device_register(&iop3xx_dma_1_channel);
platform_device_register(&iop3xx_aau_channel);
}
MACHINE_START(IQ80321, "Intel IQ80321")
/* Maintainer: Intel Corp. */
.atag_offset = 0x100,
.map_io = iq80321_map_io,
.init_irq = iop32x_init_irq,
.init_time = iq80321_timer_init,
.init_machine = iq80321_init_machine,
.restart = iop3xx_restart,
MACHINE_END
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