OMAP1510 specific fixes to 8250.c serial driver.

Adds OMAP1510 specific fixes to 8250.c serial driver.

Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 0d9358608fdfdc8c6d53824dfc9f11a4d1fe38f9..c6084f6f26de8d0225486735785cc30c8b6aea5c 100644 (file)
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -1272,7 +1272,8 @@ static irqreturn_t serial8250_interrupt(int irq, void *dev_id, struct pt_regs *r
 
        DEBUG_INTR("end.\n");
 
-       return IRQ_RETVAL(handled);
+       //return IRQ_RETVAL(handled);
+       return IRQ_HANDLED;     /* FIXME: iir status not ready on 1510 */
 }
 
 /*
@@ -1772,6 +1773,17 @@ serial8250_set_termios(struct uart_port *port, struct termios *termios,
                serial_outp(up, UART_EFR, efr);
        }
 
+#ifdef CONFIG_ARCH_OMAP1510
+       /* Workaround to enable 115200 baud on OMAP1510 internal ports */
+       if (cpu_is_omap1510() && is_omap_port(up->port.membase)) {
+               if (baud == 115200) {
+                       quot = 1;
+                       serial_out(up, UART_OMAP_OSC_12M_SEL, 1);
+               } else
+                       serial_out(up, UART_OMAP_OSC_12M_SEL, 0);
+        }
+#endif
+
        if (up->capabilities & UART_NATSEMI) {
                /* Switch to bank 2 not bank 1, to avoid resetting EXCR2 */
                serial_outp(up, UART_LCR, 0xe0);
@@ -1822,6 +1834,11 @@ static int serial8250_request_std_resource(struct uart_8250_port *up)
        unsigned int size = 8 << up->port.regshift;
        int ret = 0;
 
+#ifdef CONFIG_ARCH_OMAP
+       if (is_omap_port(up->port.membase))
+               size = 0x16 << up->port.regshift;
+#endif
+
        switch (up->port.iotype) {
        case UPIO_MEM:
                if (!up->port.mapbase)