Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Freescale SOC support functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Author: Scott Wood <scottwood@freescale.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * Copyright (c) 2007 Freescale Semiconductor, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include "ops.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include "types.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include "fsl-soc.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include "stdio.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) static u32 prop_buf[MAX_PROP_LEN / 4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) u32 *fsl_get_immr(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	void *soc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	unsigned long ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	soc = find_node_by_devtype(NULL, "soc");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	if (soc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 		int size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 		u32 naddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 		size = getprop(soc, "#address-cells", prop_buf, MAX_PROP_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 		if (size == 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 			naddr = prop_buf[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 			naddr = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 		if (naddr != 1 && naddr != 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 			goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 		size = getprop(soc, "ranges", prop_buf, MAX_PROP_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 		if (size < 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 			goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 		if (prop_buf[0] != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 			goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 		if (naddr == 2 && prop_buf[1] != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 			goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 		if (!dt_xlate_addr(soc, prop_buf + naddr, 8, &ret))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 			ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	if (!ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 		printf("fsl_get_immr: Failed to find immr base\r\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	return (u32 *)ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) }