Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  *  init.c, Common initialization routines for NEC VR4100 series.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *  Copyright (C) 2003-2009  Yoichi Yuasa <yuasa@linux-mips.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include <linux/ioport.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <linux/irq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <asm/bootinfo.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <asm/time.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <asm/vr41xx/irq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <asm/vr41xx/vr41xx.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #define IO_MEM_RESOURCE_START	0UL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define IO_MEM_RESOURCE_END	0x1fffffffUL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) static void __init iomem_resource_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	iomem_resource.start = IO_MEM_RESOURCE_START;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	iomem_resource.end = IO_MEM_RESOURCE_END;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) void __init plat_time_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	unsigned long tclock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	vr41xx_calculate_clock_frequency();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	tclock = vr41xx_get_tclock_frequency();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	if (current_cpu_data.processor_id == PRID_VR4131_REV2_0 ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	    current_cpu_data.processor_id == PRID_VR4131_REV2_1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 		mips_hpt_frequency = tclock / 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 		mips_hpt_frequency = tclock / 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) void __init plat_mem_setup(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	iomem_resource_init();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	vr41xx_siu_setup();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) void __init prom_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	int argc, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	char **argv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	argc = fw_arg0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	argv = (char **)fw_arg1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 	for (i = 1; i < argc; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 		strlcat(arcs_cmdline, argv[i], COMMAND_LINE_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 		if (i < (argc - 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 			strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) void __init prom_free_prom_memory(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) }