diff options
| author | Mike Rapoport <rppt@linux.ibm.com> | 2020-06-10 09:45:20 +0300 |
|---|---|---|
| committer | Mike Rapoport <rppt@linux.ibm.com> | 2020-07-01 12:09:13 +0300 |
| commit | fb37409a01b011a664347702f44dbf13fa7c7486 (patch) | |
| tree | f9422acc3b91dd0df2721eaca9209e867fe10eb9 /arch/unicore32/kernel/debug-macro.S | |
| parent | 9ebcfadb0610322ac537dd7aa5d9cbc2b2894c68 (diff) | |
| download | linux-fb37409a01b011a664347702f44dbf13fa7c7486.tar.xz | |
arch: remove unicore32 port
The unicore32 port do not seem maintained for a long time now, there is no
upstream toolchain that can create unicore32 binaries and all the links to
prebuilt toolchains for unicore32 are dead. Even compilers that were
available are not supported by the kernel anymore.
Guenter Roeck says:
I have stopped building unicore32 images since v4.19 since there is no
available compiler that is still supported by the kernel. I am surprised
that support for it has not been removed from the kernel.
Remove unicore32 port.
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'arch/unicore32/kernel/debug-macro.S')
| -rw-r--r-- | arch/unicore32/kernel/debug-macro.S | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/arch/unicore32/kernel/debug-macro.S b/arch/unicore32/kernel/debug-macro.S deleted file mode 100644 index 7e2da0de4f71..000000000000 --- a/arch/unicore32/kernel/debug-macro.S +++ /dev/null @@ -1,86 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * linux/arch/unicore32/kernel/debug-macro.S - * - * Code specific to PKUnity SoC and UniCore ISA - * - * Copyright (C) 2001-2010 GUAN Xue-tao - * - * Debugging macro include header - */ -#include <generated/asm-offsets.h> -#include <mach/hardware.h> - - .macro put_word_ocd, rd, rx=r16 -1001: movc \rx, p1.c0, #0 - cand.a \rx, #2 - bne 1001b - movc p1.c1, \rd, #1 - .endm - -#ifdef CONFIG_DEBUG_OCD - /* debug using UniCore On-Chip-Debugger */ - .macro addruart, rx - .endm - - .macro senduart, rd, rx - put_word_ocd \rd, \rx - .endm - - .macro busyuart, rd, rx - .endm - - .macro waituart, rd, rx - .endm -#else -#define UART_CLK_DEFAULT 3686400 * 20 - /* Uartclk = MCLK/ 2, The MCLK on my board is 3686400 * 40 */ -#define BAUD_RATE_DEFAULT 115200 - /* The baud rate of the serial port */ - -#define UART_DIVISOR_DEFAULT (UART_CLK_DEFAULT \ - / (16 * BAUD_RATE_DEFAULT) - 1) - - .macro addruart,rx - mrc p0, #0, \rx, c1, c0 - tst \rx, #1 @ MMU enabled? - moveq \rx, #0xee000000 @ physical base address - movne \rx, #0x6e000000 @ virtual address - - @ We probe for the active serial port here - @ However, now we assume UART0 is active: epip4d - @ We assume r1 and r2 can be clobbered. - - movl r2, #UART_DIVISOR_DEFAULT - mov r1, #0x80 - str r1, [\rx, #UART_LCR_OFFSET] - and r1, r2, #0xff00 - mov r1, r1, lsr #8 - str r1, [\rx, #UART_DLH_OFFSET] - and r1, r2, #0xff - str r1, [\rx, #UART_DLL_OFFSET] - mov r1, #0x7 - str r1, [\rx, #UART_FCR_OFFSET] - mov r1, #0x3 - str r1, [\rx, #UART_LCR_OFFSET] - mov r1, #0x0 - str r1, [\rx, #UART_IER_OFFSET] - .endm - - .macro senduart,rd,rx - str \rd, [\rx, #UART_THR_OFFSET] - .endm - - .macro waituart,rd,rx -1001: ldr \rd, [\rx, #UART_LSR_OFFSET] - tst \rd, #UART_LSR_THRE - beq 1001b - .endm - - .macro busyuart,rd,rx -1001: ldr \rd, [\rx, #UART_LSR_OFFSET] - tst \rd, #UART_LSR_TEMT - bne 1001b - .endm -#endif - |