- 01 5月, 2016 1 次提交
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由 Masahiro Yamada 提交于
Just in case. Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 08 3月, 2016 1 次提交
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由 Arnd Bergmann 提交于
The newly added uniphier serial port driver fails to build as a loadable module when the base 8250 driver is built-in and its console support enabled: ERROR: "early_serial8250_setup" [drivers/tty/serial/8250/8250_uniphier.ko] undefined! This changes the driver to only provide the early console support if it is built-in itself as well. Signed-off-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 08 2月, 2016 1 次提交
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由 Greg Kroah-Hartman 提交于
This reverts commit d56edd7e, it shouldn't have been applied, it was fixed properly with commit 71f50c6d ("of: drop symbols declared by _OF_DECLARE() from modules") Reported-by: NMasahiro Yamada <yamada.masahiro@socionext.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 07 2月, 2016 1 次提交
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由 Arnd Bergmann 提交于
The recently added uniphier 8250 port driver supports early console probing, and it supports being built as a module, but the combination of the two fails to link: ERROR: "early_serial8250_setup" [drivers/tty/serial/8250/8250_uniphier.ko] undefined! Given that earlycon support in a loadable module makes no sense, making that code conditional on 'MODULE' is a correct solution. Signed-off-by: NArnd Bergmann <arnd@arndb.de> Fixes: b8d20e06 ("serial: 8250_uniphier: add earlycon support") Acked-by: NMasahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 14 12月, 2015 1 次提交
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由 Masahiro Yamada 提交于
This reuses the code of drivers/tty/serial/8250/8250_early.c except - Overwrite device->port.iotype and device->port.regshift for UPIO_MEM32 because of_setup_earlycon() has set them for UPIO_MEM. - Set device->baud to zero to prevent early8250_setup() from initializing the divisor register because port->uartclk does not match the frequency expected by this hardware. Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: NPeter Hurley <peter@hurleysoftware.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 13 12月, 2015 1 次提交
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由 Masahiro Yamada 提交于
The register offset must be shifted by regshift, otherwise the baudrate is not set. I missed the issue probably because the divisor register was already set by the boot loader. Fixes: 1a8d2903 ("serial: 8250_uniphier: add UniPhier serial driver") Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 04 8月, 2015 1 次提交
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由 Masahiro Yamada 提交于
If serial8250_register_8250_port() fails, disable and unprepare the clock before exiting. Fixes: 1a8d2903 ("serial: 8250_uniphier: add UniPhier serial driver") Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: NMatthias Brugger <matthias.bgg@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 01 6月, 2015 1 次提交
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由 Masahiro Yamada 提交于
Add the driver for on-chip UART used on UniPhier SoCs. This hardware is similar to 8250, but the register mapping is slightly different: - The offset to FCR, MCR is different. - The divisor latch access bit does not exist. Instead, the divisor latch register is available at offset 9. This driver overrides serial_{in,out}, dl_{read,write} callbacks, but wants to borrow most of code from 8250_core.c. Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: NMatthias Brugger <matthias.bgg@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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