diff options
| author | kaloz <kaloz@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2008-04-27 16:56:19 +0000 |
|---|---|---|
| committer | kaloz <kaloz@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2008-04-27 16:56:19 +0000 |
| commit | c886d2690dae0258d64fef02d8a24c901f7c2d6b (patch) | |
| tree | dbcd5d214918a932007299fa02556ce313a194be /target/linux/pxa/patches-2.6.21/023-bugfix-serial-interrupt.patch | |
| parent | 1984be21949bc400d17272b33d7482f0902eec76 (diff) | |
incomplete Gumstix support
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10955 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/pxa/patches-2.6.21/023-bugfix-serial-interrupt.patch')
| -rw-r--r-- | target/linux/pxa/patches-2.6.21/023-bugfix-serial-interrupt.patch | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/target/linux/pxa/patches-2.6.21/023-bugfix-serial-interrupt.patch b/target/linux/pxa/patches-2.6.21/023-bugfix-serial-interrupt.patch new file mode 100644 index 0000000000..7f2487ec00 --- /dev/null +++ b/target/linux/pxa/patches-2.6.21/023-bugfix-serial-interrupt.patch @@ -0,0 +1,25 @@ +Index: linux-2.6.21gum/drivers/serial/pxa.c +=================================================================== +--- linux-2.6.21gum.orig/drivers/serial/pxa.c ++++ linux-2.6.21gum/drivers/serial/pxa.c +@@ -235,15 +235,19 @@ static inline irqreturn_t serial_pxa_irq + struct uart_pxa_port *up = dev_id; + unsigned int iir, lsr; + ++ serial_out(up, UART_MCR, serial_in(up, UART_MCR) & ~UART_MCR_RTS); // Clear RTS + iir = serial_in(up, UART_IIR); + if (iir & UART_IIR_NO_INT) +- return IRQ_NONE; ++ { ++ //printk(KERN_WARNING "serial_pxa_irq: odd -- interrupt triggered, but no interrupt in IIR: %08x\n",iir); ++ } + lsr = serial_in(up, UART_LSR); + if (lsr & UART_LSR_DR) + receive_chars(up, &lsr); + check_modem_status(up); + if (lsr & UART_LSR_THRE) + transmit_chars(up); ++ serial_out(up, UART_MCR, serial_in(up, UART_MCR) | UART_MCR_RTS); // Assert RTS + return IRQ_HANDLED; + } + |