1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * arch/arm/mach-iop33x/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 u32 *uart_base; 12 13 #define TX_DONE (UART_LSR_TEMT | UART_LSR_THRE) 14 putc(char c)15static 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 flush(void)22static inline void flush(void) 23 { 24 } 25 __arch_decomp_setup(unsigned long arch_id)26static __inline__ void __arch_decomp_setup(unsigned long arch_id) 27 { 28 if (machine_is_iq80331() || machine_is_iq80332()) 29 uart_base = (volatile u32 *)IOP33X_UART0_PHYS; 30 else 31 uart_base = (volatile u32 *)0xfe800000; 32 } 33 34 /* 35 * nothing to do 36 */ 37 #define arch_decomp_setup() __arch_decomp_setup(arch_id) 38