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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-10 14:48:43 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-10 14:48:43 -0700
commit0f166396e7e8931bb4acfd1a6ea1bd4f0b43f1dd (patch)
tree6279fa70695a4c56b7e935018a4c0fc1dfa82e68 /arch/mips/mips-boards/malta/malta_platform.c
parent5f60cfd932b42c69ed3226400cb5eab152576c3a (diff)
parent105b1bca4d7bed85bb296f7e7caec2fc643e9fbf (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: (62 commits) [MIPS] PNX8550: Cleanup proc code. [MIPS] WRPPMC: Fix build. [MIPS] Yosemite: Fix modpost warnings. [MIPS] Change names of local variables to silence sparse [MIPS] SB1: Fix modpost warning. [MIPS] PNX: Fix modpost warnings. [MIPS] Alchemy: Fix modpost warnings. [MIPS] Non-FPAFF: Fix warning. [MIPS] DEC: Fix modpost warning. [MIPS] MIPSsim: Enable MIPSsim virtual network driver. [MIPS] Delete Ocelot 3 support. [MIPS] remove LASAT Networks platforms support [MIPS] Early check for SMTC kernel on non-MT processor [MIPS] Add debugfs files to show fpuemu statistics [MIPS] Add some debugfs files to debug unaligned accesses [MIPS] rbtx4938: Fix secondary PCIC and glue internal NICs [MIPS] tc35815: Load MAC address via platform_device [MIPS] Move FPU affinity code into separate file. [MIPS] Make ioremap() work on TX39/49 special unmapped segment [MIPS] rbtx4938: Update and minimize defconfig ...
Diffstat (limited to 'arch/mips/mips-boards/malta/malta_platform.c')
-rw-r--r--arch/mips/mips-boards/malta/malta_platform.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/arch/mips/mips-boards/malta/malta_platform.c b/arch/mips/mips-boards/malta/malta_platform.c
new file mode 100644
index 00000000000..83b9bab3cd3
--- /dev/null
+++ b/arch/mips/mips-boards/malta/malta_platform.c
@@ -0,0 +1,65 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2007 MIPS Technologies, Inc.
+ * written by Ralf Baechle (ralf@linux-mips.org)
+ *
+ * Probe driver for the Malta's UART ports:
+ *
+ * o 2 ports in the SMC SuperIO
+ * o 1 port in the CBUS UART, a discrete 16550 which normally is only used
+ * for bringups.
+ *
+ * We don't use 8250_platform.c on Malta as it would result in the CBUS
+ * UART becoming ttyS0.
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/serial_8250.h>
+
+#define SMC_PORT(base, int) \
+{ \
+ .iobase = base, \
+ .irq = int, \
+ .uartclk = 1843200, \
+ .iotype = UPIO_PORT, \
+ .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, \
+ .regshift = 0, \
+}
+
+#define CBUS_UART_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP)
+
+static struct plat_serial8250_port uart8250_data[] = {
+ SMC_PORT(0x3F8, 4),
+ SMC_PORT(0x2F8, 3),
+ {
+ .mapbase = 0x1f000900, /* The CBUS UART */
+ .irq = MIPS_CPU_IRQ_BASE + 2,
+ .uartclk = 3686400, /* Twice the usual clk! */
+ .iotype = UPIO_MEM32,
+ .flags = CBUS_UART_FLAGS,
+ .regshift = 3,
+ },
+ { },
+};
+
+static struct platform_device uart8250_device = {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+ .dev = {
+ .platform_data = uart8250_data,
+ },
+};
+
+static int __init uart8250_init(void)
+{
+ return platform_device_register(&uart8250_device);
+}
+
+module_init(uart8250_init);
+
+MODULE_AUTHOR("Ralf Baechle <ralf@linux-mips.org>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("8250 UART probe driver for the Malta CBUS UART");