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android_kernel_xiaomi_sm8350/arch/mips/alchemy/board-mtx1.c
Thomas Gleixner fd534e9b5f treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102 
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation inc
  51 franklin st fifth floor boston ma 02110 1301 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 50 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190523091649.499889647@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24 17:39:00 +02:00

303 lines
7.4 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* MTX-1 platform devices registration (Au1500)
*
* Copyright (C) 2007-2009, Florian Fainelli <florian@openwrt.org>
*/
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <mtd/mtd-abi.h>
#include <asm/bootinfo.h>
#include <asm/reboot.h>
#include <asm/setup.h>
#include <asm/mach-au1x00/au1000.h>
#include <asm/mach-au1x00/gpio-au1000.h>
#include <asm/mach-au1x00/au1xxx_eth.h>
#include <prom.h>
const char *get_system_type(void)
{
return "MTX-1";
}
void __init prom_init(void)
{
unsigned char *memsize_str;
unsigned long memsize;
prom_argc = fw_arg0;
prom_argv = (char **)fw_arg1;
prom_envp = (char **)fw_arg2;
prom_init_cmdline();
memsize_str = prom_getenv("memsize");
if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
memsize = 0x04000000;
add_memory_region(0, memsize, BOOT_MEM_RAM);
}
void prom_putchar(char c)
{
alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
}
static void mtx1_reset(char *c)
{
/* Jump to the reset vector */
__asm__ __volatile__("jr\t%0" : : "r"(0xbfc00000));
}
static void mtx1_power_off(void)
{
while (1)
asm volatile (
" .set mips32 \n"
" wait \n"
" .set mips0 \n");
}
void __init board_setup(void)
{
#if IS_ENABLED(CONFIG_USB_OHCI_HCD)
/* Enable USB power switch */
alchemy_gpio_direction_output(204, 0);
#endif /* IS_ENABLED(CONFIG_USB_OHCI_HCD) */
/* Initialize sys_pinfunc */
alchemy_wrsys(SYS_PF_NI2, AU1000_SYS_PINFUNC);
/* Initialize GPIO */
alchemy_wrsys(~0, AU1000_SYS_TRIOUTCLR);
alchemy_gpio_direction_output(0, 0); /* Disable M66EN (PCI 66MHz) */
alchemy_gpio_direction_output(3, 1); /* Disable PCI CLKRUN# */
alchemy_gpio_direction_output(1, 1); /* Enable EXT_IO3 */
alchemy_gpio_direction_output(5, 0); /* Disable eth PHY TX_ER */
/* Enable LED and set it to green */
alchemy_gpio_direction_output(211, 1); /* green on */
alchemy_gpio_direction_output(212, 0); /* red off */
pm_power_off = mtx1_power_off;
_machine_halt = mtx1_power_off;
_machine_restart = mtx1_reset;
printk(KERN_INFO "4G Systems MTX-1 Board\n");
}
/******************************************************************************/
static struct gpio_keys_button mtx1_gpio_button[] = {
{
.gpio = 207,
.code = BTN_0,
.desc = "System button",
}
};
static struct gpio_keys_platform_data mtx1_buttons_data = {
.buttons = mtx1_gpio_button,
.nbuttons = ARRAY_SIZE(mtx1_gpio_button),
};
static struct platform_device mtx1_button = {
.name = "gpio-keys",
.id = -1,
.dev = {
.platform_data = &mtx1_buttons_data,
}
};
static struct gpiod_lookup_table mtx1_wdt_gpio_table = {
.dev_id = "mtx1-wdt.0",
.table = {
/* Global number 215 is offset 15 on Alchemy GPIO 2 */
GPIO_LOOKUP("alchemy-gpio2", 15, NULL, GPIO_ACTIVE_HIGH),
{ },
},
};
static struct platform_device mtx1_wdt = {
.name = "mtx1-wdt",
.id = 0,
};
static const struct gpio_led default_leds[] = {
{
.name = "mtx1:green",
.gpio = 211,
}, {
.name = "mtx1:red",
.gpio = 212,
},
};
static struct gpio_led_platform_data mtx1_led_data = {
.num_leds = ARRAY_SIZE(default_leds),
.leds = default_leds,
};
static struct platform_device mtx1_gpio_leds = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &mtx1_led_data,
}
};
static struct mtd_partition mtx1_mtd_partitions[] = {
{
.name = "filesystem",
.size = 0x01C00000,
.offset = 0,
},
{
.name = "yamon",
.size = 0x00100000,
.offset = MTDPART_OFS_APPEND,
.mask_flags = MTD_WRITEABLE,
},
{
.name = "kernel",
.size = 0x002c0000,
.offset = MTDPART_OFS_APPEND,
},
{
.name = "yamon env",
.size = 0x00040000,
.offset = MTDPART_OFS_APPEND,
},
};
static struct physmap_flash_data mtx1_flash_data = {
.width = 4,
.nr_parts = 4,
.parts = mtx1_mtd_partitions,
};
static struct resource mtx1_mtd_resource = {
.start = 0x1e000000,
.end = 0x1fffffff,
.flags = IORESOURCE_MEM,
};
static struct platform_device mtx1_mtd = {
.name = "physmap-flash",
.dev = {
.platform_data = &mtx1_flash_data,
},
.num_resources = 1,
.resource = &mtx1_mtd_resource,
};
static struct resource alchemy_pci_host_res[] = {
[0] = {
.start = AU1500_PCI_PHYS_ADDR,
.end = AU1500_PCI_PHYS_ADDR + 0xfff,
.flags = IORESOURCE_MEM,
},
};
static int mtx1_pci_idsel(unsigned int devsel, int assert)
{
/* This function is only necessary to support a proprietary Cardbus
* adapter on the mtx-1 "singleboard" variant. It triggers a custom
* logic chip connected to EXT_IO3 (GPIO1) to suppress IDSEL signals.
*/
udelay(1);
if (assert && devsel != 0)
/* Suppress signal to Cardbus */
alchemy_gpio_set_value(1, 0); /* set EXT_IO3 OFF */
else
alchemy_gpio_set_value(1, 1); /* set EXT_IO3 ON */
udelay(1);
return 1;
}
static const char mtx1_irqtab[][5] = {
[0] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTA, 0xff, 0xff }, /* IDSEL 00 - AdapterA-Slot0 (top) */
[1] = { -1, AU1500_PCI_INTB, AU1500_PCI_INTA, 0xff, 0xff }, /* IDSEL 01 - AdapterA-Slot1 (bottom) */
[2] = { -1, AU1500_PCI_INTC, AU1500_PCI_INTD, 0xff, 0xff }, /* IDSEL 02 - AdapterB-Slot0 (top) */
[3] = { -1, AU1500_PCI_INTD, AU1500_PCI_INTC, 0xff, 0xff }, /* IDSEL 03 - AdapterB-Slot1 (bottom) */
[4] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTB, 0xff, 0xff }, /* IDSEL 04 - AdapterC-Slot0 (top) */
[5] = { -1, AU1500_PCI_INTB, AU1500_PCI_INTA, 0xff, 0xff }, /* IDSEL 05 - AdapterC-Slot1 (bottom) */
[6] = { -1, AU1500_PCI_INTC, AU1500_PCI_INTD, 0xff, 0xff }, /* IDSEL 06 - AdapterD-Slot0 (top) */
[7] = { -1, AU1500_PCI_INTD, AU1500_PCI_INTC, 0xff, 0xff }, /* IDSEL 07 - AdapterD-Slot1 (bottom) */
};
static int mtx1_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
{
return mtx1_irqtab[slot][pin];
}
static struct alchemy_pci_platdata mtx1_pci_pd = {
.board_map_irq = mtx1_map_pci_irq,
.board_pci_idsel = mtx1_pci_idsel,
.pci_cfg_set = PCI_CONFIG_AEN | PCI_CONFIG_R2H | PCI_CONFIG_R1H |
PCI_CONFIG_CH |
#if defined(__MIPSEB__)
PCI_CONFIG_SIC_HWA_DAT | PCI_CONFIG_SM,
#else
0,
#endif
};
static struct platform_device mtx1_pci_host = {
.dev.platform_data = &mtx1_pci_pd,
.name = "alchemy-pci",
.id = 0,
.num_resources = ARRAY_SIZE(alchemy_pci_host_res),
.resource = alchemy_pci_host_res,
};
static struct platform_device *mtx1_devs[] __initdata = {
&mtx1_pci_host,
&mtx1_gpio_leds,
&mtx1_wdt,
&mtx1_button,
&mtx1_mtd,
};
static struct au1000_eth_platform_data mtx1_au1000_eth0_pdata = {
.phy_search_highest_addr = 1,
.phy1_search_mac0 = 1,
};
static int __init mtx1_register_devices(void)
{
int rc;
irq_set_irq_type(AU1500_GPIO204_INT, IRQ_TYPE_LEVEL_HIGH);
irq_set_irq_type(AU1500_GPIO201_INT, IRQ_TYPE_LEVEL_LOW);
irq_set_irq_type(AU1500_GPIO202_INT, IRQ_TYPE_LEVEL_LOW);
irq_set_irq_type(AU1500_GPIO203_INT, IRQ_TYPE_LEVEL_LOW);
irq_set_irq_type(AU1500_GPIO205_INT, IRQ_TYPE_LEVEL_LOW);
au1xxx_override_eth_cfg(0, &mtx1_au1000_eth0_pdata);
rc = gpio_request(mtx1_gpio_button[0].gpio,
mtx1_gpio_button[0].desc);
if (rc < 0) {
printk(KERN_INFO "mtx1: failed to request %d\n",
mtx1_gpio_button[0].gpio);
goto out;
}
gpio_direction_input(mtx1_gpio_button[0].gpio);
out:
gpiod_add_lookup_table(&mtx1_wdt_gpio_table);
return platform_add_devices(mtx1_devs, ARRAY_SIZE(mtx1_devs));
}
arch_initcall(mtx1_register_devices);
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