diff options
author | Koen Kooi <koen@openembedded.org> | 2007-08-21 16:36:38 +0000 |
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committer | Koen Kooi <koen@openembedded.org> | 2007-08-21 16:36:38 +0000 |
commit | ea6d83f002e29a33dfb8c5ff07bfd1f5312893a0 (patch) | |
tree | 366808c4a94ac279260e8fe301acddd4fe04f078 /packages/linux/linux-2.6.21/bugfix-serial-interrupt.patch | |
parent | 3786a532d9a55b93434bef6d8e20f26f45e30140 (diff) |
linux 2.6.21: add gumstix support
Diffstat (limited to 'packages/linux/linux-2.6.21/bugfix-serial-interrupt.patch')
-rw-r--r-- | packages/linux/linux-2.6.21/bugfix-serial-interrupt.patch | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/packages/linux/linux-2.6.21/bugfix-serial-interrupt.patch b/packages/linux/linux-2.6.21/bugfix-serial-interrupt.patch new file mode 100644 index 0000000000..7f2487ec00 --- /dev/null +++ b/packages/linux/linux-2.6.21/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; + } + |