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Diffstat (limited to 'target/linux/at91-2.6/patches/008-fdl-serial.patch')
-rw-r--r--target/linux/at91-2.6/patches/008-fdl-serial.patch95
1 files changed, 94 insertions, 1 deletions
diff --git a/target/linux/at91-2.6/patches/008-fdl-serial.patch b/target/linux/at91-2.6/patches/008-fdl-serial.patch
index 3796915972..cac6744d4c 100644
--- a/target/linux/at91-2.6/patches/008-fdl-serial.patch
+++ b/target/linux/at91-2.6/patches/008-fdl-serial.patch
@@ -1,5 +1,5 @@
--- linux-2.6.19.2.old/drivers/serial/atmel_serial.c 2007-05-01 13:08:03.000000000 +0200
-+++ linux-2.6.19.2/drivers/serial/atmel_serial.c 2007-05-09 10:21:45.000000000 +0200
++++ linux-2.6.19.2/drivers/serial/atmel_serial.c 2007-05-09 17:13:34.000000000 +0200
@@ -173,6 +173,34 @@
at91_set_gpio_value(AT91_PIN_PA21, 0);
else
@@ -69,3 +69,96 @@
return ret;
}
+@@ -510,6 +554,34 @@
+ }
+
+ /*
++ * USART0 DCD Interrupt handler
++ */
++
++static irqreturn_t atmel_u0_DCD_interrupt(int irq, void *dev_id)
++{
++ struct uart_port *port = dev_id;
++ int status = at91_get_gpio_value(irq);
++
++ uart_handle_dcd_change(port, !(status));
++
++ return IRQ_HANDLED;
++}
++
++/*
++ * USART3 DCD Interrupt handler
++ */
++
++static irqreturn_t atmel_u3_DCD_interrupt(int irq, void *dev_id)
++{
++ struct uart_port *port = dev_id;
++ int status = at91_get_gpio_value(irq);
++
++ uart_handle_dcd_change(port, !(status));
++
++ return IRQ_HANDLED;
++}
++
++/*
+ * Interrupt handler
+ */
+ static irqreturn_t atmel_interrupt(int irq, void *dev_id)
+@@ -586,6 +658,24 @@
+ return retval;
+ }
+
++ if (port->mapbase == AT91RM9200_BASE_US0) {
++ retval = request_irq(AT91_PIN_PA19, atmel_u0_DCD_interrupt, 0, "atmel_serial", port);
++ if (retval) {
++ printk("atmel_serial: atmel_startup - Can't get u0DCD irq\n");
++ free_irq(port->irq, port);
++ return retval;
++ }
++ }
++ if (port->mapbase == AT91RM9200_BASE_US3) {
++ retval = request_irq(AT91_PIN_PA24, atmel_u3_DCD_interrupt, 0, "atmel_serial", port);
++ if (retval) {
++ printk("atmel_serial: atmel_startup - Can't get u3DCD irq\n");
++ free_irq(port->irq, port);
++ return retval;
++ }
++ }
++
++
+ /*
+ * Initialize DMA (if necessary)
+ */
+@@ -602,6 +692,10 @@
+ kfree(atmel_port->pdc_rx[0].buf);
+ }
+ free_irq(port->irq, port);
++ if (port->mapbase == AT91RM9200_BASE_US0)
++ free_irq(AT91_PIN_PA19, port);
++ if (port->mapbase == AT91RM9200_BASE_US3)
++ free_irq(AT91_PIN_PA24, port);
+ return -ENOMEM;
+ }
+ pdc->dma_addr = dma_map_single(port->dev, pdc->buf, PDC_BUFFER_SIZE, DMA_FROM_DEVICE);
+@@ -635,6 +729,10 @@
+ retval = atmel_open_hook(port);
+ if (retval) {
+ free_irq(port->irq, port);
++ if (port->mapbase == AT91RM9200_BASE_US0)
++ free_irq(AT91_PIN_PA19, port);
++ if (port->mapbase == AT91RM9200_BASE_US3)
++ free_irq(AT91_PIN_PA24, port);
+ return retval;
+ }
+ }
+@@ -694,6 +792,10 @@
+ * Free the interrupt
+ */
+ free_irq(port->irq, port);
++ if (port->mapbase == AT91RM9200_BASE_US0)
++ free_irq(AT91_PIN_PA19, port);
++ if (port->mapbase == AT91RM9200_BASE_US3)
++ free_irq(AT91_PIN_PA24, port);
+
+ /*
+ * If there is a specific "close" function (to unregister