Hi,
the patch below adds support for the second serial
port on the PMC-Sierra Yosemite board.
tk
--- linux-mips/arch/mips/pmc-sierra/yosemite/setup.c 2004-07-20 11:43:44.000000000 +0200
+++ linux-mips-work/arch/mips/pmc-sierra/yosemite/setup.c 2004-08-06 18:30:55.518022384 +0200
@@ -156,11 +156,13 @@
#define TITAN_UART_CLK 3686400
#define TITAN_SERIAL_BASE_BAUD (TITAN_UART_CLK / 16)
#define TITAN_SERIAL_IRQ 4
-#define TITAN_SERIAL_BASE 0xfd000008UL
+#define TITAN_SERIAL_BASE 0xfd000000UL
+#define TITAN_SERIAL_REG_SIZE 8
static void __init py_map_ocd(void)
{
- struct uart_port up;
+ struct uart_port up;
+ static const char serr[] = KERN_ERR "Early serial init of port %u failed\n";
/*
* Not specifically interrupt stuff but in case of SMP core_send_ipi
@@ -171,20 +173,26 @@
panic("Mapping OCD failed - game over. Your score is 0.");
/*
- * Register to interrupt zero because we share the interrupt with
- * the serial driver which we don't properly support yet.
+ * Set up serial port #1. Do not use autodetection; the result is
+ * not what we want.
*/
memset(&up, 0, sizeof(up));
- up.membase = (unsigned char *) ioremap(TITAN_SERIAL_BASE, 8);
+ up.membase = (unsigned char *) ioremap(TITAN_SERIAL_BASE, TITAN_SERIAL_REG_SIZE * 2);
up.irq = TITAN_SERIAL_IRQ;
up.uartclk = TITAN_UART_CLK;
up.regshift = 0;
up.iotype = UPIO_MEM;
- up.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST;
- up.line = 0;
+ up.flags = UPF_SHARE_IRQ;
+ up.line = 1;
+ up.type = PORT_16550A;
+ if (!up.membase || early_serial_setup(&up))
+ printk(serr, up.line);
+ /* And now for port #0. */
+ up.membase += TITAN_SERIAL_REG_SIZE;
+ up.line = 0;
if (early_serial_setup(&up))
- printk(KERN_ERR "Early serial init of port 0 failed\n");
+ printk(serr, up.line);
}
static int __init pmc_yosemite_setup(void)
--
--------------------------------------------------
Thomas Koeller, Software Development
Basler Vision Technologies
thomas dot koeller at baslerweb dot com
http://www.baslerweb.com
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