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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
| commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
| tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /arch/arm/include/debug/bcm63xx.S | |
| parent | Initial commit. (diff) | |
| download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip | |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/include/debug/bcm63xx.S')
| -rw-r--r-- | arch/arm/include/debug/bcm63xx.S | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm/include/debug/bcm63xx.S b/arch/arm/include/debug/bcm63xx.S new file mode 100644 index 0000000000..da65abb673 --- /dev/null +++ b/arch/arm/include/debug/bcm63xx.S @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Broadcom BCM63xx low-level UART debug + * + * Copyright (C) 2014 Broadcom Corporation + */ + +#include <linux/serial_bcm63xx.h> + + .macro addruart, rp, rv, tmp + ldr \rp, =CONFIG_DEBUG_UART_PHYS + ldr \rv, =CONFIG_DEBUG_UART_VIRT + .endm + + .macro senduart, rd, rx + /* word access do not work */ + strb \rd, [\rx, #UART_FIFO_REG] + .endm + + .macro waituarttxrdy, rd, rx +1001: ldr \rd, [\rx, #UART_IR_REG] + tst \rd, #(1 << UART_IR_TXEMPTY) + beq 1001b + .endm + + .macro waituartcts, rd, rx + .endm + + .macro busyuart, rd, rx +1002: ldr \rd, [\rx, #UART_IR_REG] + tst \rd, #(1 << UART_IR_TXTRESH) + beq 1002b + .endm |