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u-boot/drivers/serial
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Lukasz Majewski a217891948 serial: pl01x: Modify pending callback to test if transmit FIFO is empty 
Before this change the FR_TXFF (Transmit FIFO full) bit (5 in
HW_UARTDBG_FR) has been used to assess if there is still data pending
to be sent via UART.

This approach is problematic, as it may happen that serial is in the
middle of transmission (so the TX FIFO is NOT full anymore) and this
test returns true infinitely. As a result, for example in _serial_flush()
DM serial function we are locked in endless while().

The fix here is to test explicitly if the TX FIFO is empty.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
2023-07-11 14:40:04 +02:00
..
altera_jtag_uart.c serial: Replace CONFIG_DEBUG_UART_BASE by CONFIG_VAL(DEBUG_UART_BASE) 2022-06-06 18:01:21 -04:00
altera_uart.c serial: Replace CONFIG_DEBUG_UART_BASE by CONFIG_VAL(DEBUG_UART_BASE) 2022-06-06 18:01:21 -04:00
arm_dcc.c serial: arm_dcc: Use CONFIG_ARM64 not CONFIG_CPU_ARMV8 2021-12-27 16:20:18 -05:00
atmel_usart.c kbuild: Remove uncmd_spl logic 2022-12-23 10:15:13 -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: mxs: Add MXS AUART driver 2023-05-21 16:54:41 +02:00
Makefile serial: mxs: Add MXS AUART driver 2023-05-21 16:54:41 +02:00
ns16550.c global: Finish CONFIG -> CFG migration 2023-01-20 12:27:24 -05:00
sandbox.c video: Rename CONFIG_DM_VIDEO to CONFIG_VIDEO 2022-10-30 20:07:17 +01:00
serial-uclass.c serial-uclass: drop redundant code in serial_check_stdout() 2023-04-06 19:10:08 -04:00
serial.c post: Move CONFIG_SYS_POST to CFG_SYS_POST 2022-12-23 13:01:13 -05:00
serial_ar933x.c serial: Replace CONFIG_DEBUG_UART_BASE by CONFIG_VAL(DEBUG_UART_BASE) 2022-06-06 18:01:21 -04:00
serial_arc.c serial: Use -EAGAIN in getc and putc 2023-01-02 16:01:40 -05:00
serial_bcm283x_mu.c Correct SPL uses of OF_BOARD 2023-02-10 07:41:41 -05:00
serial_bcm283x_pl011.c Correct SPL uses of OF_BOARD 2023-02-10 07:41:41 -05:00
serial_bcm6345.c serial: Replace CONFIG_DEBUG_UART_BASE by CONFIG_VAL(DEBUG_UART_BASE) 2022-06-06 18:01:21 -04:00
serial_coreboot.c x86: Allow locating the UART from ACPI tables 2023-05-11 10:25:29 +08:00
serial_cortina.c dm: treewide: Rename ofdata_to_platdata() to of_to_plat() 2020-12-13 16:51:09 -07:00
serial_efi.c efi: serial: Support arrow keys 2021-12-31 06:45:01 +01:00
serial_htif.c serial: Add RISC-V HTIF console driver 2022-02-10 11:18:12 +08:00
serial_intel_mid.c serial: Update NS16550_t and struct NS16550 2021-01-05 12:24:40 -07:00
serial_linflexuart.c serial: Replace CONFIG_DEBUG_UART_BASE by CONFIG_VAL(DEBUG_UART_BASE) 2022-06-06 18:01:21 -04:00
serial_lpuart.c serial: Use -EAGAIN in getc and putc 2023-01-02 16:01:40 -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 serial: meson: fix meson_serial_pending() tx logic 2023-06-07 10:09:20 +02:00
serial_mpc8xx.c serial, mpc8xx: Take parameter RAM relocation into account 2023-05-05 07:26:53 +02:00
serial_msm.c WS cleanup: remove trailing white space 2021-09-30 08:08:56 -04:00
serial_msm_geni.c serial: msm-geni: correct oversampling value based on QUP hardware revision 2023-05-02 14:23:59 -04:00
serial_mt7620.c cyclic: Use schedule() instead of WATCHDOG_RESET() 2022-09-18 10:26:33 +02:00
serial_mtk.c kbuild: Remove uncmd_spl logic 2022-12-23 10:15:13 -05:00
serial_mvebu_a3700.c serial: Use -EAGAIN in getc and putc 2023-01-02 16:01:40 -05:00
serial_mxc.c serial: mxc: Speed-up character transmission 2023-01-30 23:23:02 +01:00
serial_mxs.c serial: mxs: Add MXS AUART driver 2023-05-21 16:54:41 +02:00
serial_npcm.c serial: npcm: Add support for Nuvoton NPCM SoCs 2022-05-05 09:28:47 -04:00
serial_ns16550.c global: Move remaining CONFIG_SYS_NS16550_* to CFG_SYS_NS16550_* 2022-12-05 16:06:07 -05:00
serial_nulldev.c serial: remove nulldev_serial_input 2022-02-09 12:30:13 -07:00
serial_octeon_bootcmd.c cyclic: Use schedule() instead of WATCHDOG_RESET() 2022-09-18 10:26:33 +02:00
serial_octeon_pcie_console.c cyclic: Use schedule() instead of WATCHDOG_RESET() 2022-09-18 10:26:33 +02:00
serial_omap.c global: Finish CONFIG -> CFG migration 2023-01-20 12:27:24 -05:00
serial_owl.c dm: treewide: Rename ofdata_to_platdata() to of_to_plat() 2020-12-13 16:51:09 -07:00
serial_pic32.c serial: Replace CONFIG_DEBUG_UART_BASE by CONFIG_VAL(DEBUG_UART_BASE) 2022-06-06 18:01:21 -04:00
serial_pl01x.c serial: pl01x: Modify pending callback to test if transmit FIFO is empty 2023-07-11 14:40:04 +02:00
serial_pl01x_internal.h kbuild: Remove uncmd_spl logic 2022-12-23 10:15:13 -05:00
serial_rockchip.c rockchip: serial: rename U_BOOT_DRIVER name to rockchip_uart 2022-04-18 11:25:13 +08:00
serial_s5p.c serial: s5p: Use IS_ENABLED where appropriate 2023-01-27 14:32:55 -05:00
serial_s5p4418_pl011.c arm: s5p4418: dm_serial: add driver source code 2023-01-02 16:06:08 -05:00
serial_sbi.c serial: Add a debug console using the RISC-V SBI interface 2021-10-07 16:08:23 +08:00
serial_semihosting.c serial: smh: Fake tstc 2022-06-06 18:01:21 -04:00
serial_sh.c serial: sh: Add HSCIF support for R-Car SoC 2023-04-07 17:13:28 +02:00
serial_sh.h serial: sh: Add HSCIF support for R-Car SoC 2023-04-07 17:13:28 +02:00
serial_sifive.c cyclic: Use schedule() instead of WATCHDOG_RESET() 2022-09-18 10:26:33 +02:00
serial_sti_asc.c WS cleanup: remove trailing empty lines 2021-09-30 08:08:56 -04:00
serial_stm32.c serial: stm32: BRR must be set only when usart is disable 2023-06-16 11:29:29 +02:00
serial_stm32.h serial: stm32: Wait TC bit before performing initialization 2023-06-16 11:29:29 +02:00
serial_uniphier.c dm: treewide: Rename auto_alloc_size members to be shorter 2020-12-13 08:00:25 -07:00
serial_xen.c WS cleanup: remove trailing empty lines 2021-09-30 08:08:56 -04:00
serial_xuartlite.c serial: Replace CONFIG_DEBUG_UART_BASE by CONFIG_VAL(DEBUG_UART_BASE) 2022-06-06 18:01:21 -04:00
serial_zynq.c drivers: use dev_read_addr_ptr when cast to pointer 2023-05-06 17:28:18 +08:00
usbtty.c global: Finish CONFIG -> CFG migration 2023-01-20 12:27:24 -05:00
usbtty.h global: Finish CONFIG -> CFG migration 2023-01-20 12:27:24 -05:00