kernel.git/arch/powerpc/kernel/legacy_serial.c, branch linux-3.8.y

Fix misspellings of "whether" in comments.

2012-11-19T13:31:35Z

"Whether" is misspelled in various comments across the tree; this fixes them. No code changes. Signed-off-by: Adam Buchbinder Signed-off-by: Jiri Kosina

powerpc: Fix build on some non-freescale platforms

2012-01-25T02:33:22Z

Commit 9deaa53ac7fa373623123aa4f18828dd62292b1a broke build on platforms that use legacy_serial.c without also having CONFIG_SERIAL_8250_FSL enabled due to an unconditional code to a routine in that module. Signed-off-by: Benjamin Herrenschmidt

serial: add irq handler for Freescale 16550 errata.

2011-12-10T03:14:13Z

Sending a break on the SOC UARTs found in some MPC83xx/85xx/86xx chips seems to cause a short lived IRQ storm (/proc/interrupts typically shows somewhere between 300 and 1500 events). Unfortunately this renders SysRQ over the serial console completely inoperable. The suggested workaround in the errata is to read the Rx register, wait one character period, and then read the Rx register again. We achieve this by tracking the old LSR value, and on the subsequent interrupt event after a break, we don't read LSR, instead we just read the RBR again and return immediately. The "fsl,ns16550" is used in the compatible field of the serial device to mark UARTs known to have this issue. Thanks to Scott Wood for providing the errata data which led to a much cleaner fix. Signed-off-by: Paul Gortmaker Acked-by: Alan Cox Signed-off-by: Greg Kroah-Hartman

serial/8250: Move UPIO_TSI to powerpc

2011-09-19T23:19:39Z

This iotype is only used by the legacy_serial code in powerpc, so the code should live there, rather than be compiled in for every 8250 driver. Signed-off-by: Arnd Bergmann Cc: Benjamin Herrenschmidt Cc: linuxppc-dev@lists.ozlabs.org Cc: Greg Kroah-Hartman Cc: linux-serial@vger.kernel.org Acked-by: David Daney Signed-off-by: Benjamin Herrenschmidt

powerpc: Check device status before adding serial device

2011-04-12T11:29:21Z

serial port nodes with the property status="disabled" are not usable and so avoid adding "disabled" port with the system. Signed-off-by: Prabhakar Kushwaha Signed-off-by: Kumar Gala

powerpc, of_serial: Endianness issues setting up the serial ports

2010-10-07T23:21:15Z

The speed and clock of the serial ports is retrieved from the device tree in both the PowerPC legacy serial code and the Open Firmware serial driver, therefore they need to handle the fact that the device tree is always big endian, while the CPU may not be. Also fix other device tree references in the legacy serial code. Signed-off-by: Ian Munsie Signed-off-by: Grant Likely

of/address: Clean up function declarations

2010-08-01T07:42:42Z

This patch moves the declaration of of_get_address(), of_get_pci_address(), and of_pci_address_to_resource() out of arch code and into the common linux/of_address header file. This patch also fixes some of the asm/prom.h ordering issues. It still includes some header files that it ideally shouldn't be, but at least the ordering is consistent now so that of_* overrides work. Signed-off-by: Grant Likely

Fix spelling of 'platform' in comments and doc

2010-02-05T11:22:34Z

Replace platfrom -> platform. This is a frequent spelling bug. Signed-off-by: Stefan Weil Signed-off-by: Jiri Kosina

powerpc/powermac: Fixup default serial port device for pmac_zilog

2008-07-28T06:30:53Z

This removes the non-working code in legacy_serial that tried to handle the powermac SCC ports, and instead add a (now working) function to the powermac platform code to find the default serial console if any. Signed-off-by: Benjamin Herrenschmidt

powerpc: Fix unterminated of_device_id array in legacy_serial.c

2008-07-07T15:53:49Z

A recent patch to legacy_serial.c factored out some code by using the of_match_node() facility to match a node against an array of possible matches. However, the patch didn't properly terminate the array causing potential crashes in cases where no match is found. In addition, the name of the array was poorly chosen for a static symbol making debugging harder. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Linus Torvalds