// SPDX-License-Identifier: GPL-2.0-only /* * Freescale SOC support functions * * Author: Scott Wood <scottwood@freescale.com> * * Copyright (c) 2007 Freescale Semiconductor, Inc. */ #include "ops.h" #include "types.h" #include "fsl-soc.h" #include "stdio.h" static u32 prop_buf[MAX_PROP_LEN / 4]; u32 *fsl_get_immr(void) { void *soc; unsigned long ret = 0; soc = find_node_by_devtype(NULL, "soc"); if (soc) { int size; u32 naddr; size = getprop(soc, "#address-cells", prop_buf, MAX_PROP_LEN); if (size == 4) naddr = prop_buf[0]; else naddr = 2; if (naddr != 1 && naddr != 2) goto err; size = getprop(soc, "ranges", prop_buf, MAX_PROP_LEN); if (size < 12) goto err; if (prop_buf[0] != 0) goto err; if (naddr == 2 && prop_buf[1] != 0) goto err; if (!dt_xlate_addr(soc, prop_buf + naddr, 8, &ret)) ret = 0; } err: if (!ret) printf("fsl_get_immr: Failed to find immr base\r\n"); return (u32 *)ret; }