diff options
Diffstat (limited to 'arch/mips/cobalt')
| -rw-r--r-- | arch/mips/cobalt/Makefile | 2 | ||||
| -rw-r--r-- | arch/mips/cobalt/serial.c | 85 | ||||
| -rw-r--r-- | arch/mips/cobalt/setup.c | 19 |
3 files changed, 86 insertions, 20 deletions
diff --git a/arch/mips/cobalt/Makefile b/arch/mips/cobalt/Makefile index 9565b2104dc..44416665187 100644 --- a/arch/mips/cobalt/Makefile +++ b/arch/mips/cobalt/Makefile @@ -2,7 +2,7 @@ # Makefile for the Cobalt micro systems family specific parts of the kernel # -obj-y := irq.o reset.o setup.o buttons.o +obj-y := buttons.o irq.o reset.o serial.o setup.o obj-$(CONFIG_PCI) += pci.o obj-$(CONFIG_EARLY_PRINTK) += console.o diff --git a/arch/mips/cobalt/serial.c b/arch/mips/cobalt/serial.c new file mode 100644 index 00000000000..c27116599a5 --- /dev/null +++ b/arch/mips/cobalt/serial.c @@ -0,0 +1,85 @@ +/* + * Registration of Cobalt UART platform device. + * + * Copyright (C) 2007 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> + * + * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/ioport.h> +#include <linux/platform_device.h> +#include <linux/serial_8250.h> + +#include <cobalt.h> + +static struct resource cobalt_uart_resource[] __initdata = { + { + .start = 0x1c800000, + .end = 0x1c800007, + .flags = IORESOURCE_MEM, + }, + { + .start = COBALT_SERIAL_IRQ, + .end = COBALT_SERIAL_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct plat_serial8250_port cobalt_serial8250_port[] = { + { + .irq = COBALT_SERIAL_IRQ, + .uartclk = 18432000, + .iotype = UPIO_MEM, + .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, + .mapbase = 0x1c800000, + }, + {}, +}; + +static __init int cobalt_uart_add(void) +{ + struct platform_device *pdev; + int retval; + + /* + * Cobalt Qube1 and RAQ1 have no UART. + */ + if (cobalt_board_id <= COBALT_BRD_ID_RAQ1) + return 0; + + pdev = platform_device_alloc("serial8250", -1); + if (!pdev) + return -ENOMEM; + + pdev->id = PLAT8250_DEV_PLATFORM; + pdev->dev.platform_data = cobalt_serial8250_port; + + retval = platform_device_add_resources(pdev, cobalt_uart_resource, ARRAY_SIZE(cobalt_uart_resource)); + if (retval) + goto err_free_device; + + retval = platform_device_add(pdev); + if (retval) + goto err_free_device; + + return 0; + +err_free_device: + platform_device_put(pdev); + + return retval; +} +device_initcall(cobalt_uart_add); diff --git a/arch/mips/cobalt/setup.c b/arch/mips/cobalt/setup.c index d0dd81790f7..e2f53abfb44 100644 --- a/arch/mips/cobalt/setup.c +++ b/arch/mips/cobalt/setup.c @@ -13,8 +13,6 @@ #include <linux/pci.h> #include <linux/init.h> #include <linux/pm.h> -#include <linux/serial.h> -#include <linux/serial_core.h> #include <asm/bootinfo.h> #include <asm/time.h> @@ -27,7 +25,6 @@ extern void cobalt_machine_restart(char *command); extern void cobalt_machine_halt(void); extern void cobalt_machine_power_off(void); -extern void cobalt_early_console(void); int cobalt_board_id; @@ -95,7 +92,6 @@ static struct resource cobalt_reserved_resources[] = { void __init plat_mem_setup(void) { - static struct uart_port uart; unsigned int devfn = PCI_DEVFN(COBALT_PCICONF_VIA, 0); int i; @@ -119,21 +115,6 @@ void __init plat_mem_setup(void) cobalt_board_id = VIA_COBALT_BRD_REG_to_ID(cobalt_board_id); printk("Cobalt board ID: %d\n", cobalt_board_id); - - if (cobalt_board_id > COBALT_BRD_ID_RAQ1) { -#ifdef CONFIG_SERIAL_8250 - uart.line = 0; - uart.type = PORT_UNKNOWN; - uart.uartclk = 18432000; - uart.irq = COBALT_SERIAL_IRQ; - uart.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | - UPF_SKIP_TEST; - uart.iotype = UPIO_MEM; - uart.mapbase = 0x1c800000; - - early_serial_setup(&uart); -#endif - } } /* |