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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
| commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
| tree | a94efe259b9009378be6d90eb30d2b019d95c194 /arch/arm/include/debug/pl01x.S | |
| parent | Initial commit. (diff) | |
| download | linux-upstream/5.10.209.tar.xz linux-upstream/5.10.209.zip | |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/include/debug/pl01x.S')
| -rw-r--r-- | arch/arm/include/debug/pl01x.S | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/arm/include/debug/pl01x.S b/arch/arm/include/debug/pl01x.S new file mode 100644 index 000000000..0c7bfa4c1 --- /dev/null +++ b/arch/arm/include/debug/pl01x.S @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* arch/arm/include/debug/pl01x.S + * + * Debugging macro include header + * + * Copyright (C) 1994-1999 Russell King + * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks +*/ +#include <linux/amba/serial.h> + +#ifdef CONFIG_DEBUG_ZTE_ZX +#undef UART01x_DR +#undef UART01x_FR +#define UART01x_DR 0x04 +#define UART01x_FR 0x14 +#endif + +#ifdef CONFIG_DEBUG_UART_PHYS + .macro addruart, rp, rv, tmp + ldr \rp, =CONFIG_DEBUG_UART_PHYS + ldr \rv, =CONFIG_DEBUG_UART_VIRT + .endm +#endif + + .macro senduart,rd,rx + strb \rd, [\rx, #UART01x_DR] + .endm + + .macro waituartcts,rd,rx + .endm + + .macro waituarttxrdy,rd,rx +1001: ldr \rd, [\rx, #UART01x_FR] + ARM_BE8( rev \rd, \rd ) + tst \rd, #UART01x_FR_TXFF + bne 1001b + .endm + + .macro busyuart,rd,rx +1001: ldr \rd, [\rx, #UART01x_FR] + ARM_BE8( rev \rd, \rd ) + tst \rd, #UART01x_FR_BUSY + bne 1001b + .endm |