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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* arch/arm/mach-iop32x/glantank.c
*
* Board support code for the GLAN Tank.
*
* Copyright (C) 2006, 2007 Martin Michlmayr <tbm@cyrius.com>
* Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
*/
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/f75375s.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/pm.h>
#include <linux/string.h>
#include <linux/serial_core.h>
#include <linux/serial_8250.h>
#include <linux/mtd/physmap.h>
#include <linux/i2c.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 "hardware.h"
#include "gpio-iop32x.h"
#include "irqs.h"
/*
* GLAN Tank timer tick configuration.
*/
static void __init glantank_timer_init(void)
{
/* 33.333 MHz crystal. */
iop_init_time(200000000);
}
/*
* GLAN Tank I/O.
*/
static struct map_desc glantank_io_desc[] __initdata = {
{ /* on-board devices */
.virtual = GLANTANK_UART,
.pfn = __phys_to_pfn(GLANTANK_UART),
.length = 0x00100000,
.type = MT_DEVICE
},
};
void __init glantank_map_io(void)
{
iop3xx_map_io();
iotable_init(glantank_io_desc, ARRAY_SIZE(glantank_io_desc));
}
/*
* GLAN Tank PCI.
*/
#define INTA IRQ_IOP32X_XINT0
#define INTB IRQ_IOP32X_XINT1
#define INTC IRQ_IOP32X_XINT2
#define INTD IRQ_IOP32X_XINT3
static int __init
glantank_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
static int pci_irq_table[][4] = {
/*
* PCI IDSEL/INTPIN->INTLINE
* A B C D
*/
{INTD, INTD, INTD, INTD}, /* UART (8250) */
{INTA, INTA, INTA, INTA}, /* Ethernet (E1000) */
{INTB, INTB, INTB, INTB}, /* IDE (AEC6280R) */
{INTC, INTC, INTC, INTC}, /* USB (NEC) */
};
BUG_ON(pin < 1 || pin > 4);
return pci_irq_table[slot % 4][pin - 1];
}
static struct hw_pci glantank_pci __initdata = {
.nr_controllers = 1,
.ops = &iop3xx_ops,
.setup = iop3xx_pci_setup,
.preinit = iop3xx_pci_preinit,
.map_irq = glantank_pci_map_irq,
};
static int __init glantank_pci_init(void)
{
if (machine_is_glantank())
pci_common_init(&glantank_pci);
return 0;
}
subsys_initcall(glantank_pci_init);
/*
* GLAN Tank machine initialization.
*/
static struct physmap_flash_data glantank_flash_data = {
.width = 2,
};
static struct resource glantank_flash_resource = {
.start = 0xf0000000,
.end = 0xf007ffff,
.flags = IORESOURCE_MEM,
};
static struct platform_device glantank_flash_device = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &glantank_flash_data,
},
.num_resources = 1,
.resource = &glantank_flash_resource,
};
static struct plat_serial8250_port glantank_serial_port[] = {
{
.mapbase = GLANTANK_UART,
.membase = (char *)GLANTANK_UART,
.irq = IRQ_IOP32X_XINT3,
.flags = UPF_SKIP_TEST,
.iotype = UPIO_MEM,
.regshift = 0,
.uartclk = 1843200,
},
{ },
};
static struct resource glantank_uart_resource = {
.start = GLANTANK_UART,
.end = GLANTANK_UART + 7,
.flags = IORESOURCE_MEM,
};
static struct platform_device glantank_serial_device = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = glantank_serial_port,
},
.num_resources = 1,
.resource = &glantank_uart_resource,
};
static struct f75375s_platform_data glantank_f75375s = {
.pwm = { 255, 255 },
.pwm_enable = { 0, 0 },
};
static struct i2c_board_info __initdata glantank_i2c_devices[] = {
{
I2C_BOARD_INFO("rs5c372a", 0x32),
},
{
I2C_BOARD_INFO("f75375", 0x2e),
.platform_data = &glantank_f75375s,
},
};
static void glantank_power_off(void)
{
__raw_writeb(0x01, IOMEM(0xfe8d0004));
while (1)
;
}
static void __init glantank_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(&glantank_flash_device);
platform_device_register(&glantank_serial_device);
platform_device_register(&iop3xx_dma_0_channel);
platform_device_register(&iop3xx_dma_1_channel);
i2c_register_board_info(0, glantank_i2c_devices,
ARRAY_SIZE(glantank_i2c_devices));
pm_power_off = glantank_power_off;
}
MACHINE_START(GLANTANK, "GLAN Tank")
/* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
.atag_offset = 0x100,
.nr_irqs = IOP32X_NR_IRQS,
.map_io = glantank_map_io,
.init_irq = iop32x_init_irq,
.init_time = glantank_timer_init,
.init_machine = glantank_init_machine,
.restart = iop3xx_restart,
MACHINE_END
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