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Linux/arch/arm/include/debug/meson.S

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Diff markup

Differences between /arch/arm/include/debug/meson.S (Version linux-6.12-rc7) and /arch/i386/include/debug/meson.S (Version linux-4.9.337)


  1 /* SPDX-License-Identifier: GPL-2.0-only */       
  2 /*                                                
  3  * Copyright (C) 2014 Carlo Caione                
  4  * Carlo Caione <carlo@caione.org>                 
  5  */                                               
  6                                                   
  7 #define MESON_AO_UART_WFIFO             0x0       
  8 #define MESON_AO_UART_STATUS            0xc       
  9                                                   
 10 #define MESON_AO_UART_TX_FIFO_EMPTY     (1 <<     
 11 #define MESON_AO_UART_TX_FIFO_FULL      (1 <<     
 12                                                   
 13         .macro  addruart, rp, rv, tmp             
 14         ldr     \rp, =(CONFIG_DEBUG_UART_PHYS)    
 15         ldr     \rv, =(CONFIG_DEBUG_UART_VIRT)    
 16         .endm                                     
 17                                                   
 18         .macro  senduart,rd,rx                    
 19         str     \rd, [\rx, #MESON_AO_UART_WFIF    
 20         .endm                                     
 21                                                   
 22         .macro  busyuart,rd,rx                    
 23 1002:   ldr     \rd, [\rx, #MESON_AO_UART_STAT    
 24         tst     \rd, #MESON_AO_UART_TX_FIFO_EM    
 25         beq     1002b                             
 26         .endm                                     
 27                                                   
 28         .macro  waituartcts,rd,rx                 
 29         .endm                                     
 30                                                   
 31         .macro  waituarttxrdy,rd,rx               
 32 1001:   ldr     \rd, [\rx, #MESON_AO_UART_STAT    
 33         tst     \rd, #MESON_AO_UART_TX_FIFO_FU    
 34         bne     1001b                             
 35         .endm                                     
                                                      

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