MIPS: BCM63xx: Add serial driver for bcm63xx integrated UART.

Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

4 files changed, 51 insertions, 1 deletions

diff --git a/arch/mips/bcm63xx/Makefile b/arch/mips/bcm63xx/Makefile
index aaa585cf26e3..cff75de8449b 100644
--- a/arch/mips/bcm63xx/Makefile
+++ b/arch/mips/bcm63xx/Makefile
@@ -1,5 +1,5 @@
 obj-y           += clk.o cpu.o cs.o gpio.o irq.o prom.o setup.o timer.o \
-                   dev-dsp.o dev-enet.o
+                   dev-dsp.o dev-enet.o dev-uart.o
 obj-$(CONFIG_EARLY_PRINTK)      += early_printk.o
 
 obj-y           += boards/
diff --git a/arch/mips/bcm63xx/boards/board_bcm963xx.c b/arch/mips/bcm63xx/boards/board_bcm963xx.c
index 12add0ca9fed..5a327f3a7167 100644
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
@@ -23,6 +23,7 @@
 #include <bcm63xx_dev_pci.h>
 #include <bcm63xx_dev_enet.h>
 #include <bcm63xx_dev_dsp.h>
+#include <bcm63xx_dev_uart.h>
 #include <board_bcm963xx.h>
 
 #define PFX     "board_bcm963xx: "
@@ -792,6 +793,8 @@ int __init board_register_devices(void)
 {
         u32 val;
 
+        bcm63xx_uart_register();
+
         if (board.has_enet0 &&
             !board_get_mac_address(board.enet0.mac_addr))
                 bcm63xx_enet_register(0, &board.enet0);
diff --git a/arch/mips/bcm63xx/dev-uart.c b/arch/mips/bcm63xx/dev-uart.c
new file mode 100644
index 000000000000..5f3d89c4a988
--- /dev/null
+++ b/arch/mips/bcm63xx/dev-uart.c
@@ -0,0 +1,41 @@
+/*
+ * 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) 2008 Maxime Bizon <mbizon@freebox.fr>
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <bcm63xx_cpu.h>
+#include <bcm63xx_dev_uart.h>
+
+static struct resource uart_resources[] = {
+        {
+                .start          = -1, /* filled at runtime */
+                .end            = -1, /* filled at runtime */
+                .flags          = IORESOURCE_MEM,
+        },
+        {
+                .start          = -1, /* filled at runtime */
+                .flags          = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device bcm63xx_uart_device = {
+        .name           = "bcm63xx_uart",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(uart_resources),
+        .resource       = uart_resources,
+};
+
+int __init bcm63xx_uart_register(void)
+{
+        uart_resources[0].start = bcm63xx_regset_address(RSET_UART0);
+        uart_resources[0].end = uart_resources[0].start;
+        uart_resources[0].end += RSET_UART_SIZE - 1;
+        uart_resources[1].start = bcm63xx_get_irq_number(IRQ_UART0);
+        return platform_device_register(&bcm63xx_uart_device);
+}
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_uart.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_uart.h
new file mode 100644
index 000000000000..bf348f573bbc
--- /dev/null
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_uart.h
@@ -0,0 +1,6 @@
+#ifndef BCM63XX_DEV_UART_H_
+#define BCM63XX_DEV_UART_H_
+
+int bcm63xx_uart_register(void);
+
+#endif /* BCM63XX_DEV_UART_H_ */