162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * arch/arm/mach-sa1100/include/mach/uncompress.h 462306a36Sopenharmony_ci * 562306a36Sopenharmony_ci * (C) 1999 Nicolas Pitre <nico@fluxnic.net> 662306a36Sopenharmony_ci * 762306a36Sopenharmony_ci * Reorganised to be machine independent. 862306a36Sopenharmony_ci */ 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ci#include "hardware.h" 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_ci#define IOMEM(x) (x) 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_ci/* 1562306a36Sopenharmony_ci * The following code assumes the serial port has already been 1662306a36Sopenharmony_ci * initialized by the bootloader. We search for the first enabled 1762306a36Sopenharmony_ci * port in the most probable order. If you didn't setup a port in 1862306a36Sopenharmony_ci * your bootloader then nothing will appear (which might be desired). 1962306a36Sopenharmony_ci */ 2062306a36Sopenharmony_ci 2162306a36Sopenharmony_ci#define UART(x) (*(volatile unsigned long *)(serial_port + (x))) 2262306a36Sopenharmony_ci 2362306a36Sopenharmony_cistatic inline void putc(int c) 2462306a36Sopenharmony_ci{ 2562306a36Sopenharmony_ci unsigned long serial_port; 2662306a36Sopenharmony_ci 2762306a36Sopenharmony_ci do { 2862306a36Sopenharmony_ci serial_port = _Ser3UTCR0; 2962306a36Sopenharmony_ci if (UART(UTCR3) & UTCR3_TXE) break; 3062306a36Sopenharmony_ci serial_port = _Ser1UTCR0; 3162306a36Sopenharmony_ci if (UART(UTCR3) & UTCR3_TXE) break; 3262306a36Sopenharmony_ci serial_port = _Ser2UTCR0; 3362306a36Sopenharmony_ci if (UART(UTCR3) & UTCR3_TXE) break; 3462306a36Sopenharmony_ci return; 3562306a36Sopenharmony_ci } while (0); 3662306a36Sopenharmony_ci 3762306a36Sopenharmony_ci /* wait for space in the UART's transmitter */ 3862306a36Sopenharmony_ci while (!(UART(UTSR1) & UTSR1_TNF)) 3962306a36Sopenharmony_ci barrier(); 4062306a36Sopenharmony_ci 4162306a36Sopenharmony_ci /* send the character out. */ 4262306a36Sopenharmony_ci UART(UTDR) = c; 4362306a36Sopenharmony_ci} 4462306a36Sopenharmony_ci 4562306a36Sopenharmony_cistatic inline void flush(void) 4662306a36Sopenharmony_ci{ 4762306a36Sopenharmony_ci} 4862306a36Sopenharmony_ci 4962306a36Sopenharmony_ci/* 5062306a36Sopenharmony_ci * Nothing to do for these 5162306a36Sopenharmony_ci */ 5262306a36Sopenharmony_ci#define arch_decomp_setup() 53