[MIPS] Add back support for LASAT platforms
Signed-off-by: Brian Murphy <brian@murphy.dk>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/lasat/serial.c b/arch/mips/lasat/serial.c
new file mode 100644
index 0000000..205bd39
--- /dev/null
+++ b/arch/mips/lasat/serial.c
@@ -0,0 +1,94 @@
+/*
+ * Registration of Lasat UART platform device.
+ *
+ * Copyright (C) 2007 Brian Murphy <brian@murphy.dk>
+ *
+ * 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
+ */
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+#include <linux/serial_8250.h>
+
+#include <asm/bootinfo.h>
+#include <asm/lasat/lasat.h>
+#include <asm/lasat/serial.h>
+
+static struct resource lasat_serial_res[2] __initdata;
+
+static struct plat_serial8250_port lasat_serial8250_port[] = {
+ {
+ .iotype = UPIO_MEM,
+ .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF |
+ UPF_SKIP_TEST,
+ },
+ {},
+};
+
+static __init int lasat_uart_add(void)
+{
+ struct platform_device *pdev;
+ int retval;
+
+ pdev = platform_device_alloc("serial8250", -1);
+ if (!pdev)
+ return -ENOMEM;
+
+ if (mips_machtype == MACH_LASAT_100) {
+ lasat_serial_res[0].start = KSEG1ADDR(LASAT_UART_REGS_BASE_100);
+ lasat_serial_res[0].end = lasat_serial_res[0].start + LASAT_UART_REGS_SHIFT_100 * 8 - 1;
+ lasat_serial_res[0].flags = IORESOURCE_MEM;
+ lasat_serial_res[1].start = LASATINT_UART_100;
+ lasat_serial_res[1].end = LASATINT_UART_100;
+ lasat_serial_res[1].flags = IORESOURCE_IRQ;
+
+ lasat_serial8250_port[0].mapbase = LASAT_UART_REGS_BASE_100;
+ lasat_serial8250_port[0].uartclk = LASAT_BASE_BAUD_100 * 16;
+ lasat_serial8250_port[0].regshift = LASAT_UART_REGS_SHIFT_100;
+ lasat_serial8250_port[0].irq = LASATINT_UART_100;
+ } else {
+ lasat_serial_res[0].start = KSEG1ADDR(LASAT_UART_REGS_BASE_200);
+ lasat_serial_res[0].end = lasat_serial_res[0].start + LASAT_UART_REGS_SHIFT_200 * 8 - 1;
+ lasat_serial_res[0].flags = IORESOURCE_MEM;
+ lasat_serial_res[1].start = LASATINT_UART_200;
+ lasat_serial_res[1].end = LASATINT_UART_200;
+ lasat_serial_res[1].flags = IORESOURCE_IRQ;
+
+ lasat_serial8250_port[0].mapbase = LASAT_UART_REGS_BASE_200;
+ lasat_serial8250_port[0].uartclk = LASAT_BASE_BAUD_200 * 16;
+ lasat_serial8250_port[0].regshift = LASAT_UART_REGS_SHIFT_200;
+ lasat_serial8250_port[0].irq = LASATINT_UART_200;
+ }
+
+ pdev->id = PLAT8250_DEV_PLATFORM;
+ pdev->dev.platform_data = lasat_serial8250_port;
+
+ retval = platform_device_add_resources(pdev, lasat_serial_res, ARRAY_SIZE(lasat_serial_res));
+ 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(lasat_uart_add);