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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-11 09:59:50 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-11 09:59:50 -0700
commitf2c60ed038dedcc43a0eb3ef4e0602741ba90384 (patch)
tree1d06b6c080e1c164d87b66f8cc4b13203378b85a /arch/mips/cobalt/serial.c
parentcabca0cb0d0e8579428d8f8c3f606e2f01d26d14 (diff)
parent3f2d560e9029ec0b7edf8be0c32425f4bb57d582 (diff)
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (28 commits) [MIPS] Rework cobalt_board_id [MIPS] Use RTC_CMOS for Cobalt [MIPS] Use platform_device for Cobalt UART [MIPS] Separate Alchemy processor based boards config [MIPS] Fix build error in atomic64_cmpxchg [MIPS] Run checksyscalls for N32 and O32 ABI [MIPS] tlbex: use __maybe_unused [MIPS] excite: use __maybe_unused [MIPS] Add extern cobalt_board_id [MIPS] Remove unused CONFIG_TOSHIBA_BOARDS [MIPS] Rename tb0229_defconfig to tb0219_defconfig [MIPS] Update tb0229_defconfig; add CONFIG_GPIO_TB0219. [MIPS] Add minimum defconfig for RBHMA4200 [MIPS] SB1: Build fix. [MIPS] Drop __devinit tag from allocate_irqno() and free_irqno() [MIPS] clocksource: use CLOCKSOURCE_MASK() macro [MIPS] Remove LIMITED_DMA support [MIPS] Remove Momenco Jaguar ATX support [MIPS] Remove Momenco Ocelot G support [MIPS] FPU hazard handling ...
Diffstat (limited to 'arch/mips/cobalt/serial.c')
-rw-r--r--arch/mips/cobalt/serial.c85
1 files changed, 85 insertions, 0 deletions
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);