1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * arch/arm/mach-sa1100/include/mach/uncompress.h 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * (C) 1999 Nicolas Pitre <nico@fluxnic.net> 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * Reorganised to be machine independent. 8*4882a593Smuzhiyun */ 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #include "hardware.h" 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #define IOMEM(x) (x) 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun /* 15*4882a593Smuzhiyun * The following code assumes the serial port has already been 16*4882a593Smuzhiyun * initialized by the bootloader. We search for the first enabled 17*4882a593Smuzhiyun * port in the most probable order. If you didn't setup a port in 18*4882a593Smuzhiyun * your bootloader then nothing will appear (which might be desired). 19*4882a593Smuzhiyun */ 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun #define UART(x) (*(volatile unsigned long *)(serial_port + (x))) 22*4882a593Smuzhiyun putc(int c)23*4882a593Smuzhiyunstatic inline void putc(int c) 24*4882a593Smuzhiyun { 25*4882a593Smuzhiyun unsigned long serial_port; 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun do { 28*4882a593Smuzhiyun serial_port = _Ser3UTCR0; 29*4882a593Smuzhiyun if (UART(UTCR3) & UTCR3_TXE) break; 30*4882a593Smuzhiyun serial_port = _Ser1UTCR0; 31*4882a593Smuzhiyun if (UART(UTCR3) & UTCR3_TXE) break; 32*4882a593Smuzhiyun serial_port = _Ser2UTCR0; 33*4882a593Smuzhiyun if (UART(UTCR3) & UTCR3_TXE) break; 34*4882a593Smuzhiyun return; 35*4882a593Smuzhiyun } while (0); 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun /* wait for space in the UART's transmitter */ 38*4882a593Smuzhiyun while (!(UART(UTSR1) & UTSR1_TNF)) 39*4882a593Smuzhiyun barrier(); 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun /* send the character out. */ 42*4882a593Smuzhiyun UART(UTDR) = c; 43*4882a593Smuzhiyun } 44*4882a593Smuzhiyun flush(void)45*4882a593Smuzhiyunstatic inline void flush(void) 46*4882a593Smuzhiyun { 47*4882a593Smuzhiyun } 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun /* 50*4882a593Smuzhiyun * Nothing to do for these 51*4882a593Smuzhiyun */ 52*4882a593Smuzhiyun #define arch_decomp_setup() 53