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TOMOYO Linux Cross Reference
Linux/arch/arm/mach-iop32x/include/mach/uncompress.h

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  1 /* SPDX-License-Identifier: GPL-2.0 */
  2 /*
  3  * arch/arm/mach-iop32x/include/mach/uncompress.h
  4  */
  5 
  6 #include <asm/types.h>
  7 #include <asm/mach-types.h>
  8 #include <linux/serial_reg.h>
  9 #include <mach/hardware.h>
 10 
 11 volatile u8 *uart_base;
 12 
 13 #define TX_DONE         (UART_LSR_TEMT | UART_LSR_THRE)
 14 
 15 static inline void putc(char c)
 16 {
 17         while ((uart_base[UART_LSR] & TX_DONE) != TX_DONE)
 18                 barrier();
 19         uart_base[UART_TX] = c;
 20 }
 21 
 22 static inline void flush(void)
 23 {
 24 }
 25 
 26 static __inline__ void __arch_decomp_setup(unsigned long arch_id)
 27 {
 28         if (machine_is_iq80321())
 29                 uart_base = (volatile u8 *)IQ80321_UART;
 30         else if (machine_is_iq31244() || machine_is_em7210())
 31                 uart_base = (volatile u8 *)IQ31244_UART;
 32         else
 33                 uart_base = (volatile u8 *)0xfe800000;
 34 }
 35 
 36 /*
 37  * nothing to do
 38  */
 39 #define arch_decomp_setup()     __arch_decomp_setup(arch_id)
 40 

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