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/freebsd-10.2-release/sys/dev/ic/ | ||
H A D | ns16550.h | diff 158844 Tue May 23 00:41:12 MDT 2006 benno Allow uart(4)'s ns8250 driver to work with devices whose regshift is > 0. - Rename REG_DL to REG_DLL and REG_DLH. - Always treat DLL and DLH as two separate 8-bit registers instead of one 16-bit register. Additionally, remove the probe for the high 4 bits of IER being 0 and don't assume we can always read/write 0 to/from those bits. These changes allow uart(4) to drive the UARTs on the Intel XScale PXA255. Reviewed by: marcel |
/freebsd-10.2-release/sys/dev/uart/ | ||
H A D | uart_dev_ns8250.c | diff 158844 Tue May 23 00:41:12 MDT 2006 benno Allow uart(4)'s ns8250 driver to work with devices whose regshift is > 0. - Rename REG_DL to REG_DLL and REG_DLH. - Always treat DLL and DLH as two separate 8-bit registers instead of one 16-bit register. Additionally, remove the probe for the high 4 bits of IER being 0 and don't assume we can always read/write 0 to/from those bits. These changes allow uart(4) to drive the UARTs on the Intel XScale PXA255. Reviewed by: marcel |
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