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authorYoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>2007-05-11 21:29:59 +0900
committerRalf Baechle <ralf@linux-mips.org>2007-05-11 14:28:33 +0100
commitfb82a3a7674e754729c2e31183b538e39a900e5b (patch)
treebe2cb6b8543f1bedc5bd7c80bc927e58dfa6e170 /arch
parentc3543e253a79e1383300953fb9c6f688e8be312d (diff)
[MIPS] Use platform_device for Cobalt UART
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/cobalt/Makefile2
-rw-r--r--arch/mips/cobalt/serial.c85
-rw-r--r--arch/mips/cobalt/setup.c19
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
- }
}
/*