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u-boot/drivers/serial
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Bin Meng 384b62c073 serial: ns16550: Handle zero <clock-frequency> value 
A working device tree node of ns16550 should never be populated
with value zero for the <clock-frequency> property. Unfortunately
this is the case for the QEMU ppce500 target.

Let's try to assign plat->clock to CONFIG_SYS_NS16550_CLK as the
last resort to handle such case.

This commit should be reverted when:

- The following QEMU patch [1] is merged, and
- U-Boot CI has upgraded its QEMU version that contains the fix

[1] http://patchwork.ozlabs.org/project/qemu-devel/patch/1612362288-22216-2-git-send-email-bmeng.cn@gmail.com/

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-03-03 19:17:25 -07:00
..
altera_jtag_uart.c dm: Use access methods for dev/uclass private data 2021-01-05 12:24:40 -07:00
altera_uart.c dm: Use access methods for dev/uclass private data 2021-01-05 12:24:40 -07:00
arm_dcc.c serial: Remove DM_FLAG_PRE_RELOC flag in various drivers 2018-11-14 09:16:28 -08:00
atmel_usart.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
atmel_usart.h SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
Kconfig serial: s5p: Allow independent selection 2021-02-23 15:43:21 +09:00
lpc32xx_hsuart.c dm: treewide: Rename ..._platdata variables to just ..._plat 2020-12-13 16:51:09 -07:00
Makefile serial: s5p: Allow independent selection 2021-02-23 15:43:21 +09:00
ns16550.c serial: ns16550: Handle zero <clock-frequency> value 2021-03-03 19:17:25 -07:00
sandbox.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
serial_ar933x.c dm: treewide: Rename auto_alloc_size members to be shorter 2020-12-13 08:00:25 -07:00
serial_arc.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
serial_bcm283x_mu.c dm: treewide: Rename ..._platdata variables to just ..._plat 2020-12-13 16:51:09 -07:00
serial_bcm283x_pl011.c dm: treewide: Rename ..._platdata variables to just ..._plat 2020-12-13 16:51:09 -07:00
serial_bcm6345.c dm: treewide: Rename auto_alloc_size members to be shorter 2020-12-13 08:00:25 -07:00
serial_coreboot.c serial: Update NS16550_t and struct NS16550 2021-01-05 12:24:40 -07:00
serial_cortina.c dm: treewide: Rename ofdata_to_platdata() to of_to_plat() 2020-12-13 16:51:09 -07:00
serial_efi.c dm: treewide: Rename auto_alloc_size members to be shorter 2020-12-13 08:00:25 -07:00
serial_intel_mid.c serial: Update NS16550_t and struct NS16550 2021-01-05 12:24:40 -07:00
serial_linflexuart.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
serial_lpuart.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
serial_mcf.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
serial_meson.c dm: Use access methods for dev/uclass private data 2021-01-05 12:24:40 -07:00
serial_mpc8xx.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
serial_msm.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
serial_mt7620.c serial: add uart driver for MediaTek MT7620 SoC 2021-01-24 21:39:26 +01:00
serial_mtk.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
serial_mvebu_a3700.c serial: a3720: Implement pending method for output direction 2021-01-27 13:12:51 +01:00
serial_mxc.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
serial_ns16550.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
serial_nulldev.c SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
serial_omap.c dm: Use access methods for dev/uclass private data 2021-01-05 12:24:40 -07:00
serial_owl.c dm: treewide: Rename ofdata_to_platdata() to of_to_plat() 2020-12-13 16:51:09 -07:00
serial_pic32.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
serial_pl01x_internal.h dm: treewide: Rename ofdata_to_platdata() to of_to_plat() 2020-12-13 16:51:09 -07:00
serial_pl01x.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
serial_pxa.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
serial_rockchip.c dm: Use access methods for dev/uclass private data 2021-01-05 12:24:40 -07:00
serial_s5p.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
serial_sh.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
serial_sh.h sh: sh3: Remove CPU support 2019-05-10 22:43:18 +02:00
serial_sifive.c Merge branch '2021-02-02-drop-asm_global_data-when-unused' 2021-02-15 10:16:45 -05:00
serial_sti_asc.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
serial_stm32.c serial: stm32: define LOG_CATEGORY 2021-01-13 09:52:58 +01:00
serial_stm32.h dm: treewide: Rename ..._platdata variables to just ..._plat 2020-12-13 16:51:09 -07:00
serial_uniphier.c dm: treewide: Rename auto_alloc_size members to be shorter 2020-12-13 08:00:25 -07:00
serial_xen.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
serial_xuartlite.c Xilinx changes for v2021.04 2021-01-06 07:57:33 -05:00
serial_zynq.c clk: zynq: Add dummy clock enable function 2021-02-23 14:56:59 +01:00
serial-uclass.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
serial.c common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
usbtty.c serial: usbtty: Send urb data in correct order 2021-03-03 04:12:45 +01:00
usbtty.h SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00