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