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60 lines
1.5 KiB
60 lines
1.5 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Old U-boot compatibility for MPC5200 |
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* |
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* Author: Grant Likely <[email protected]> |
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* |
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* Copyright (c) 2007 Secret Lab Technologies Ltd. |
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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 "stdio.h" |
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#include "io.h" |
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#include "cuboot.h" |
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#define TARGET_PPC_MPC52xx |
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#include "ppcboot.h" |
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static bd_t bd; |
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static void platform_fixups(void) |
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{ |
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void *soc, *reg; |
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int div; |
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u32 sysfreq; |
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dt_fixup_memory(bd.bi_memstart, bd.bi_memsize); |
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dt_fixup_mac_addresses(bd.bi_enetaddr); |
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dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 4, bd.bi_busfreq); |
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/* Unfortunately, the specific model number is encoded in the |
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* soc node name in existing dts files -- once that is fixed, |
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* this can do a simple path lookup. |
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*/ |
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soc = find_node_by_devtype(NULL, "soc"); |
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if (!soc) |
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soc = find_node_by_compatible(NULL, "fsl,mpc5200-immr"); |
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if (!soc) |
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soc = find_node_by_compatible(NULL, "fsl,mpc5200b-immr"); |
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if (soc) { |
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setprop(soc, "bus-frequency", &bd.bi_ipbfreq, |
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sizeof(bd.bi_ipbfreq)); |
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if (!dt_xlate_reg(soc, 0, (void*)®, NULL)) |
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return; |
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div = in_8(reg + 0x204) & 0x0020 ? 8 : 4; |
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sysfreq = bd.bi_busfreq * div; |
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setprop(soc, "system-frequency", &sysfreq, sizeof(sysfreq)); |
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} |
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} |
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void platform_init(unsigned long r3, unsigned long r4, unsigned long r5, |
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unsigned long r6, unsigned long r7) |
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{ |
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CUBOOT_INIT(); |
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fdt_init(_dtb_start); |
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serial_console_init(); |
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platform_ops.fixups = platform_fixups; |
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}
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