From 1f651e7bfd7409c8db96d530b74b31af2a79cf15 Mon Sep 17 00:00:00 2001 From: Philip Balister Date: Fri, 8 Aug 2008 22:01:19 +0000 Subject: linux-davinci : Add patch to solve strange serial console behavior. --- packages/linux/linux-davinci/8250_davinci.patch | 28 +++++++++++++++++++++++ packages/linux/linux-davinci_2.6.x+git-davinci.bb | 1 + 2 files changed, 29 insertions(+) create mode 100644 packages/linux/linux-davinci/8250_davinci.patch (limited to 'packages') diff --git a/packages/linux/linux-davinci/8250_davinci.patch b/packages/linux/linux-davinci/8250_davinci.patch new file mode 100644 index 0000000000..3625ded357 --- /dev/null +++ b/packages/linux/linux-davinci/8250_davinci.patch @@ -0,0 +1,28 @@ +--- linux-2.6/drivers/serial/8250.c 2008-08-06 15:56:53.000000000 -0500 ++++ linux-2.6-vanilla/drivers/serial/8250.c 2008-08-07 12:24:29.000000000 -0500 +@@ -1867,7 +1867,6 @@ + } + + if (is_real_interrupt(up->port.irq)) { +- unsigned char iir1; + /* + * Test for UARTs that do not reassert THRE when the + * transmitter is idle and the interrupt has already +@@ -1881,7 +1880,7 @@ + wait_for_xmitr(up, UART_LSR_THRE); + serial_out_sync(up, UART_IER, UART_IER_THRI); + udelay(1); /* allow THRE to set */ +- iir1 = serial_in(up, UART_IIR); ++ serial_in(up, UART_IIR); + serial_out(up, UART_IER, 0); + serial_out_sync(up, UART_IER, UART_IER_THRI); + udelay(1); /* allow a working UART time to re-assert THRE */ +@@ -1894,7 +1893,7 @@ + * If the interrupt is not reasserted, setup a timer to + * kick the UART on a regular basis. + */ +- if (!(iir1 & UART_IIR_NO_INT) && (iir & UART_IIR_NO_INT)) { ++ if (iir & UART_IIR_NO_INT) { + pr_debug("ttyS%d - using backup timer\n", port->line); + up->timer.function = serial8250_backup_timeout; + up->timer.data = (unsigned long)up; diff --git a/packages/linux/linux-davinci_2.6.x+git-davinci.bb b/packages/linux/linux-davinci_2.6.x+git-davinci.bb index 5b5a55aaf3..6560fc9fbb 100644 --- a/packages/linux/linux-davinci_2.6.x+git-davinci.bb +++ b/packages/linux/linux-davinci_2.6.x+git-davinci.bb @@ -13,6 +13,7 @@ PR = "r2" COMPATIBLE_MACHINE = "(davinci-dvevm|davinci-sffsdr)" SRC_URI = "git://source.mvista.com/git/linux-davinci-2.6.git;protocol=git \ + file://8250_davinci.patch;patch=1 \ file://defconfig" SRC_URI_append_davinci-sffsdr = " file://sffsdr.patch;patch=1" -- cgit v1.2.3