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| author | Phil Sutter <n0-1@freewrt.org> | 2009-01-15 15:38:38 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2009-01-30 21:33:00 +0000 |
| commit | 1452fc7d178c37c6463c95c5cc6858c7b7f478c8 (patch) | |
| tree | 11087b5300be36da1b1fa851c740a4d85c8da20f /arch/mips | |
| parent | 84c2c562c101bd84ea0f796b9838296da1bf859e (diff) | |
| download | linux-1452fc7d178c37c6463c95c5cc6858c7b7f478c8.tar.gz linux-1452fc7d178c37c6463c95c5cc6858c7b7f478c8.tar.bz2 linux-1452fc7d178c37c6463c95c5cc6858c7b7f478c8.zip | |
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')
| -rw-r--r-- | arch/mips/rb532/devices.c | 26 | ||||
| -rw-r--r-- | arch/mips/rb532/serial.c | 2 |
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, |