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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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d2912cb15b
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
59 lines
1.6 KiB
ArmAsm
59 lines
1.6 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* arch/arm/include/debug/sti.S
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*
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* Debugging macro include header
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* Copyright (C) 2013 STMicroelectronics (R&D) Limited.
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*/
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#define STIH41X_COMMS_BASE 0xfed00000
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#define STIH41X_ASC2_BASE (STIH41X_COMMS_BASE+0x32000)
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#define STIH41X_SBC_LPM_BASE 0xfe400000
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#define STIH41X_SBC_COMMS_BASE (STIH41X_SBC_LPM_BASE + 0x100000)
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#define STIH41X_SBC_ASC1_BASE (STIH41X_SBC_COMMS_BASE + 0x31000)
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#define VIRT_ADDRESS(x) (x - 0x1000000)
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#if IS_ENABLED(CONFIG_STIH41X_DEBUG_ASC2)
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#define DEBUG_LL_UART_BASE STIH41X_ASC2_BASE
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#endif
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#if IS_ENABLED(CONFIG_STIH41X_DEBUG_SBC_ASC1)
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#define DEBUG_LL_UART_BASE STIH41X_SBC_ASC1_BASE
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#endif
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#ifndef DEBUG_LL_UART_BASE
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#error "DEBUG UART is not Configured"
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#endif
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#define ASC_TX_BUF_OFF 0x04
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#define ASC_CTRL_OFF 0x0c
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#define ASC_STA_OFF 0x14
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#define ASC_STA_TX_FULL (1<<9)
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#define ASC_STA_TX_EMPTY (1<<1)
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.macro addruart, rp, rv, tmp
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ldr \rp, =DEBUG_LL_UART_BASE @ physical base
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ldr \rv, =VIRT_ADDRESS(DEBUG_LL_UART_BASE) @ virt base
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.endm
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.macro senduart,rd,rx
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strb \rd, [\rx, #ASC_TX_BUF_OFF]
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.endm
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.macro waituart,rd,rx
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1001: ldr \rd, [\rx, #ASC_STA_OFF]
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tst \rd, #ASC_STA_TX_FULL
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bne 1001b
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.endm
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.macro busyuart,rd,rx
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1001: ldr \rd, [\rx, #ASC_STA_OFF]
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tst \rd, #ASC_STA_TX_EMPTY
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beq 1001b
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.endm
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