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/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/arm/mach-sa1100/include/mach/uncompress.h * * (C) 1999 Nicolas Pitre <nico@fluxnic.net> * * Reorganised to be machine independent. */ #include "hardware.h" #define IOMEM(x) (x) /* * The following code assumes the serial port has already been * initialized by the bootloader. We search for the first enabled * port in the most probable order. If you didn't setup a port in * your bootloader then nothing will appear (which might be desired). */ #define UART(x) (*(volatile unsigned long *)(serial_port + (x))) static inline void putc(int c) { unsigned long serial_port; do { serial_port = _Ser3UTCR0; if (UART(UTCR3) & UTCR3_TXE) break; serial_port = _Ser1UTCR0; if (UART(UTCR3) & UTCR3_TXE) break; serial_port = _Ser2UTCR0; if (UART(UTCR3) & UTCR3_TXE) break; return; } while (0); /* wait for space in the UART's transmitter */ while (!(UART(UTSR1) & UTSR1_TNF)) barrier(); /* send the character out. */ UART(UTDR) = c; } static inline void flush(void) { } /* * Nothing to do for these */ #define arch_decomp_setup()
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