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authorPhil Sutter <n0-1@freewrt.org>2009-01-15 15:38:38 +0100
committerRalf Baechle <ralf@linux-mips.org>2009-01-30 21:33:00 +0000
commit1452fc7d178c37c6463c95c5cc6858c7b7f478c8 (patch)
tree11087b5300be36da1b1fa851c740a4d85c8da20f /arch/mips/rb532
parent84c2c562c101bd84ea0f796b9838296da1bf859e (diff)
downloadlinux-linaro-stable-1452fc7d178c37c6463c95c5cc6858c7b7f478c8.tar.gz
MIPS: RB532: Detect uart type, add platform device
Auto-detection works just fine, so use it instead of specifying the type manually. Also define a platform device for the uart, as suggested by David Daney. Signed-off-by: Phil Sutter <n0-1@freewrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/rb532')
-rw-r--r--arch/mips/rb532/devices.c26
-rw-r--r--arch/mips/rb532/serial.c2
2 files changed, 27 insertions, 1 deletions
diff --git a/arch/mips/rb532/devices.c b/arch/mips/rb532/devices.c
index c1c29181bd46..9b6b744d8ecc 100644
--- a/arch/mips/rb532/devices.c
+++ b/arch/mips/rb532/devices.c
@@ -24,6 +24,7 @@
#include <linux/mtd/partitions.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
+#include <linux/serial_8250.h>
#include <asm/bootinfo.h>
@@ -39,6 +40,8 @@
#define ETH0_RX_DMA_ADDR (DMA0_BASE_ADDR + 0 * DMA_CHAN_OFFSET)
#define ETH0_TX_DMA_ADDR (DMA0_BASE_ADDR + 1 * DMA_CHAN_OFFSET)
+extern unsigned int idt_cpu_freq;
+
static struct resource korina_dev0_res[] = {
{
.name = "korina_regs",
@@ -214,12 +217,32 @@ static struct platform_device rb532_wdt = {
.num_resources = ARRAY_SIZE(rb532_wdt_res),
};
+static struct plat_serial8250_port rb532_uart_res[] = {
+ {
+ .membase = (char *)KSEG1ADDR(REGBASE + UART0BASE),
+ .irq = UART0_IRQ,
+ .regshift = 2,
+ .iotype = UPIO_MEM,
+ .flags = UPF_BOOT_AUTOCONF,
+ },
+ {
+ .flags = 0,
+ }
+};
+
+static struct platform_device rb532_uart = {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev.platform_data = &rb532_uart_res,
+};
+
static struct platform_device *rb532_devs[] = {
&korina_dev0,
&nand_slot0,
&cf_slot0,
&rb532_led,
&rb532_button,
+ &rb532_uart,
&rb532_wdt
};
@@ -294,6 +317,9 @@ static int __init plat_setup_devices(void)
/* Initialise the NAND device */
rb532_nand_setup();
+ /* set the uart clock to the current cpu frequency */
+ rb532_uart_res[0].uartclk = idt_cpu_freq;
+
return platform_add_devices(rb532_devs, ARRAY_SIZE(rb532_devs));
}
diff --git a/arch/mips/rb532/serial.c b/arch/mips/rb532/serial.c
index 3e0d7ec3a579..00ed19f0bdb5 100644
--- a/arch/mips/rb532/serial.c
+++ b/arch/mips/rb532/serial.c
@@ -36,7 +36,7 @@
extern unsigned int idt_cpu_freq;
static struct uart_port rb532_uart = {
- .type = PORT_16550A,
+ .flags = UPF_BOOT_AUTOCONF,
.line = 0,
.irq = UART0_IRQ,
.iotype = UPIO_MEM,