mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-30 23:36:44 +07:00
2d798a3f20
Fix regression introduced by commit d2323cf773 ("onewire: w1-gpio: add
ext_pullup_enable pin in platform data") which added a gpio entry to the
platform data, but did not add the required initialisers to the board
files using it. Consequently, the driver would request gpio 0 at probe,
which could break other uses of the corresponding pin.
On AT91 requesting gpio 0 changes the pin muxing for PIOA0, which, for
instance, breaks SPI0 on at91sam9g20.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
251 lines
6.0 KiB
C
251 lines
6.0 KiB
C
/*
|
|
* arch/arm/mach-ixp4xx/vulcan-setup.c
|
|
*
|
|
* Arcom/Eurotech Vulcan board-setup
|
|
*
|
|
* Copyright (C) 2010 Marc Zyngier <maz@misterjones.org>
|
|
*
|
|
* based on fsg-setup.c:
|
|
* Copyright (C) 2008 Rod Whitby <rod@whitby.id.au>
|
|
*/
|
|
|
|
#include <linux/if_ether.h>
|
|
#include <linux/irq.h>
|
|
#include <linux/serial.h>
|
|
#include <linux/serial_8250.h>
|
|
#include <linux/io.h>
|
|
#include <linux/w1-gpio.h>
|
|
#include <linux/mtd/plat-ram.h>
|
|
#include <asm/mach-types.h>
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/flash.h>
|
|
|
|
static struct flash_platform_data vulcan_flash_data = {
|
|
.map_name = "cfi_probe",
|
|
.width = 2,
|
|
};
|
|
|
|
static struct resource vulcan_flash_resource = {
|
|
.flags = IORESOURCE_MEM,
|
|
};
|
|
|
|
static struct platform_device vulcan_flash = {
|
|
.name = "IXP4XX-Flash",
|
|
.id = 0,
|
|
.dev = {
|
|
.platform_data = &vulcan_flash_data,
|
|
},
|
|
.resource = &vulcan_flash_resource,
|
|
.num_resources = 1,
|
|
};
|
|
|
|
static struct platdata_mtd_ram vulcan_sram_data = {
|
|
.mapname = "Vulcan SRAM",
|
|
.bankwidth = 1,
|
|
};
|
|
|
|
static struct resource vulcan_sram_resource = {
|
|
.flags = IORESOURCE_MEM,
|
|
};
|
|
|
|
static struct platform_device vulcan_sram = {
|
|
.name = "mtd-ram",
|
|
.id = 0,
|
|
.dev = {
|
|
.platform_data = &vulcan_sram_data,
|
|
},
|
|
.resource = &vulcan_sram_resource,
|
|
.num_resources = 1,
|
|
};
|
|
|
|
static struct resource vulcan_uart_resources[] = {
|
|
[0] = {
|
|
.start = IXP4XX_UART1_BASE_PHYS,
|
|
.end = IXP4XX_UART1_BASE_PHYS + 0x0fff,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = IXP4XX_UART2_BASE_PHYS,
|
|
.end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[2] = {
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
};
|
|
|
|
static struct plat_serial8250_port vulcan_uart_data[] = {
|
|
[0] = {
|
|
.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,
|
|
},
|
|
[1] = {
|
|
.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,
|
|
},
|
|
[2] = {
|
|
.irq = IXP4XX_GPIO_IRQ(4),
|
|
.irqflags = IRQF_TRIGGER_LOW,
|
|
.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
|
|
.iotype = UPIO_MEM,
|
|
.uartclk = 1843200,
|
|
},
|
|
[3] = {
|
|
.irq = IXP4XX_GPIO_IRQ(4),
|
|
.irqflags = IRQF_TRIGGER_LOW,
|
|
.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
|
|
.iotype = UPIO_MEM,
|
|
.uartclk = 1843200,
|
|
},
|
|
{ }
|
|
};
|
|
|
|
static struct platform_device vulcan_uart = {
|
|
.name = "serial8250",
|
|
.id = PLAT8250_DEV_PLATFORM,
|
|
.dev = {
|
|
.platform_data = vulcan_uart_data,
|
|
},
|
|
.resource = vulcan_uart_resources,
|
|
.num_resources = ARRAY_SIZE(vulcan_uart_resources),
|
|
};
|
|
|
|
static struct eth_plat_info vulcan_plat_eth[] = {
|
|
[0] = {
|
|
.phy = 0,
|
|
.rxq = 3,
|
|
.txreadyq = 20,
|
|
},
|
|
[1] = {
|
|
.phy = 1,
|
|
.rxq = 4,
|
|
.txreadyq = 21,
|
|
},
|
|
};
|
|
|
|
static struct platform_device vulcan_eth[] = {
|
|
[0] = {
|
|
.name = "ixp4xx_eth",
|
|
.id = IXP4XX_ETH_NPEB,
|
|
.dev = {
|
|
.platform_data = &vulcan_plat_eth[0],
|
|
},
|
|
},
|
|
[1] = {
|
|
.name = "ixp4xx_eth",
|
|
.id = IXP4XX_ETH_NPEC,
|
|
.dev = {
|
|
.platform_data = &vulcan_plat_eth[1],
|
|
},
|
|
},
|
|
};
|
|
|
|
static struct resource vulcan_max6369_resource = {
|
|
.flags = IORESOURCE_MEM,
|
|
};
|
|
|
|
static struct platform_device vulcan_max6369 = {
|
|
.name = "max6369_wdt",
|
|
.id = -1,
|
|
.resource = &vulcan_max6369_resource,
|
|
.num_resources = 1,
|
|
};
|
|
|
|
static struct w1_gpio_platform_data vulcan_w1_gpio_pdata = {
|
|
.pin = 14,
|
|
.ext_pullup_enable_pin = -EINVAL,
|
|
};
|
|
|
|
static struct platform_device vulcan_w1_gpio = {
|
|
.name = "w1-gpio",
|
|
.id = 0,
|
|
.dev = {
|
|
.platform_data = &vulcan_w1_gpio_pdata,
|
|
},
|
|
};
|
|
|
|
static struct platform_device *vulcan_devices[] __initdata = {
|
|
&vulcan_uart,
|
|
&vulcan_flash,
|
|
&vulcan_sram,
|
|
&vulcan_max6369,
|
|
&vulcan_eth[0],
|
|
&vulcan_eth[1],
|
|
&vulcan_w1_gpio,
|
|
};
|
|
|
|
static void __init vulcan_init(void)
|
|
{
|
|
ixp4xx_sys_init();
|
|
|
|
/* Flash is spread over both CS0 and CS1 */
|
|
vulcan_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
|
|
vulcan_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
|
|
*IXP4XX_EXP_CS0 = IXP4XX_EXP_BUS_CS_EN |
|
|
IXP4XX_EXP_BUS_STROBE_T(3) |
|
|
IXP4XX_EXP_BUS_SIZE(0xF) |
|
|
IXP4XX_EXP_BUS_BYTE_RD16 |
|
|
IXP4XX_EXP_BUS_WR_EN;
|
|
*IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
|
|
|
|
/* SRAM on CS2, (256kB, 8bit, writable) */
|
|
vulcan_sram_resource.start = IXP4XX_EXP_BUS_BASE(2);
|
|
vulcan_sram_resource.end = IXP4XX_EXP_BUS_BASE(2) + SZ_256K - 1;
|
|
*IXP4XX_EXP_CS2 = IXP4XX_EXP_BUS_CS_EN |
|
|
IXP4XX_EXP_BUS_STROBE_T(1) |
|
|
IXP4XX_EXP_BUS_HOLD_T(2) |
|
|
IXP4XX_EXP_BUS_SIZE(9) |
|
|
IXP4XX_EXP_BUS_SPLT_EN |
|
|
IXP4XX_EXP_BUS_WR_EN |
|
|
IXP4XX_EXP_BUS_BYTE_EN;
|
|
|
|
/* XR16L2551 on CS3 (Moto style, 512 bytes, 8bits, writable) */
|
|
vulcan_uart_resources[2].start = IXP4XX_EXP_BUS_BASE(3);
|
|
vulcan_uart_resources[2].end = IXP4XX_EXP_BUS_BASE(3) + 16 - 1;
|
|
vulcan_uart_data[2].mapbase = vulcan_uart_resources[2].start;
|
|
vulcan_uart_data[3].mapbase = vulcan_uart_data[2].mapbase + 8;
|
|
*IXP4XX_EXP_CS3 = IXP4XX_EXP_BUS_CS_EN |
|
|
IXP4XX_EXP_BUS_STROBE_T(3) |
|
|
IXP4XX_EXP_BUS_CYCLES(IXP4XX_EXP_BUS_CYCLES_MOTOROLA)|
|
|
IXP4XX_EXP_BUS_WR_EN |
|
|
IXP4XX_EXP_BUS_BYTE_EN;
|
|
|
|
/* GPIOS on CS4 (512 bytes, 8bits, writable) */
|
|
*IXP4XX_EXP_CS4 = IXP4XX_EXP_BUS_CS_EN |
|
|
IXP4XX_EXP_BUS_WR_EN |
|
|
IXP4XX_EXP_BUS_BYTE_EN;
|
|
|
|
/* max6369 on CS5 (512 bytes, 8bits, writable) */
|
|
vulcan_max6369_resource.start = IXP4XX_EXP_BUS_BASE(5);
|
|
vulcan_max6369_resource.end = IXP4XX_EXP_BUS_BASE(5);
|
|
*IXP4XX_EXP_CS5 = IXP4XX_EXP_BUS_CS_EN |
|
|
IXP4XX_EXP_BUS_WR_EN |
|
|
IXP4XX_EXP_BUS_BYTE_EN;
|
|
|
|
platform_add_devices(vulcan_devices, ARRAY_SIZE(vulcan_devices));
|
|
}
|
|
|
|
MACHINE_START(ARCOM_VULCAN, "Arcom/Eurotech Vulcan")
|
|
/* Maintainer: Marc Zyngier <maz@misterjones.org> */
|
|
.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 = vulcan_init,
|
|
#if defined(CONFIG_PCI)
|
|
.dma_zone_size = SZ_64M,
|
|
#endif
|
|
.restart = ixp4xx_restart,
|
|
MACHINE_END
|