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| author | Wolfram Sang <w.sang@pengutronix.de> | 2010-04-27 11:25:27 +0200 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2010-04-28 00:54:58 -0600 |
| commit | b0c06027c7d18d99e6f5e81382a7f06a8080b084 (patch) | |
| tree | d0169def1073895fddca3d20c1df515b01a07c5d /drivers/serial/mpc52xx_uart.c | |
| parent | 3913fd5ed42c990c20036ef5c90e7987a9dd1ad1 (diff) | |
| download | talos-op-linux-b0c06027c7d18d99e6f5e81382a7f06a8080b084.tar.gz talos-op-linux-b0c06027c7d18d99e6f5e81382a7f06a8080b084.zip | |
serial/mpc52xx_uart: Drop outdated comments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/mpc52xx_uart.c')
| -rw-r--r-- | drivers/serial/mpc52xx_uart.c | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c index 3119fddaedb5..a176ab4bd65b 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> |
