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authorWolfram Sang <w.sang@pengutronix.de>2010-04-27 11:25:27 +0200
committerGrant Likely <grant.likely@secretlab.ca>2010-04-28 00:54:58 -0600
commitb0c06027c7d18d99e6f5e81382a7f06a8080b084 (patch)
treed0169def1073895fddca3d20c1df515b01a07c5d /drivers/serial
parent3913fd5ed42c990c20036ef5c90e7987a9dd1ad1 (diff)
downloadop-kernel-dev-b0c06027c7d18d99e6f5e81382a7f06a8080b084.zip
op-kernel-dev-b0c06027c7d18d99e6f5e81382a7f06a8080b084.tar.gz
serial/mpc52xx_uart: Drop outdated comments
Most things mentioned are either obsolete (platform-support) or wrong (device numbering, DCD spport) these days. The remaining rest is obvious. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/serial')
-rw-r--r--drivers/serial/mpc52xx_uart.c33
1 files changed, 0 insertions, 33 deletions
diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c
index 3119fdd..a176ab4 100644
--- a/drivers/serial/mpc52xx_uart.c
+++ b/drivers/serial/mpc52xx_uart.c
@@ -29,39 +29,6 @@
* kind, whether express or implied.
*/
-/* Platform device Usage :
- *
- * Since PSCs can have multiple function, the correct driver for each one
- * is selected by calling mpc52xx_match_psc_function(...). The function
- * handled by this driver is "uart".
- *
- * The driver init all necessary registers to place the PSC in uart mode without
- * DCD. However, the pin multiplexing aren't changed and should be set either
- * by the bootloader or in the platform init code.
- *
- * The idx field must be equal to the PSC index (e.g. 0 for PSC1, 1 for PSC2,
- * and so on). So the PSC1 is mapped to /dev/ttyPSC0, PSC2 to /dev/ttyPSC1 and
- * so on. But be warned, it's an ABSOLUTE REQUIREMENT ! This is needed mainly
- * fpr the console code : without this 1:1 mapping, at early boot time, when we
- * are parsing the kernel args console=ttyPSC?, we wouldn't know which PSC it
- * will be mapped to.
- */
-
-/* OF Platform device Usage :
- *
- * This driver is only used for PSCs configured in uart mode. The device
- * tree will have a node for each PSC with "mpc52xx-psc-uart" in the compatible
- * list.
- *
- * By default, PSC devices are enumerated in the order they are found. However
- * a particular PSC number can be forces by adding 'device_no = <port#>'
- * to the device node.
- *
- * The driver init all necessary registers to place the PSC in uart mode without
- * DCD. However, the pin multiplexing aren't changed and should be set either
- * by the bootloader or in the platform init code.
- */
-
#undef DEBUG
#include <linux/device.h>
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