diff options
| author | Philip Balister <philip@balister.org> | 2008-02-15 13:27:34 +0000 |
|---|---|---|
| committer | Philip Balister <philip@balister.org> | 2008-02-15 13:27:34 +0000 |
| commit | 7192c8cda818dee66ccd54fa42b909a3b740f05c (patch) | |
| tree | 1c86d1f26ae4412c093ad5befa636b99bbfc3286 /packages/linux/gumstix-kernel-2.6.21/bugfix-serial-interrupt.patch | |
| parent | 9eff3cb5ad3afdcb429a2302e0ec303b07cb5604 (diff) | |
gumstix-kernel : Add files to build a kernel for gumstix machines. These are
copied verbatim from the gumstix OE based build system.
Diffstat (limited to 'packages/linux/gumstix-kernel-2.6.21/bugfix-serial-interrupt.patch')
| -rw-r--r-- | packages/linux/gumstix-kernel-2.6.21/bugfix-serial-interrupt.patch | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/packages/linux/gumstix-kernel-2.6.21/bugfix-serial-interrupt.patch b/packages/linux/gumstix-kernel-2.6.21/bugfix-serial-interrupt.patch new file mode 100644 index 0000000000..7f2487ec00 --- /dev/null +++ b/packages/linux/gumstix-kernel-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; + } + |