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60 lines
1.3 KiB
60 lines
1.3 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* init.c, Common initialization routines for NEC VR4100 series. |
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* |
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* Copyright (C) 2003-2009 Yoichi Yuasa <[email protected]> |
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*/ |
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#include <linux/init.h> |
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#include <linux/ioport.h> |
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#include <linux/irq.h> |
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#include <linux/string.h> |
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#include <asm/bootinfo.h> |
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#include <asm/time.h> |
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#include <asm/vr41xx/irq.h> |
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#include <asm/vr41xx/vr41xx.h> |
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#define IO_MEM_RESOURCE_START 0UL |
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#define IO_MEM_RESOURCE_END 0x1fffffffUL |
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static void __init iomem_resource_init(void) |
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{ |
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iomem_resource.start = IO_MEM_RESOURCE_START; |
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iomem_resource.end = IO_MEM_RESOURCE_END; |
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} |
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void __init plat_time_init(void) |
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{ |
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unsigned long tclock; |
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vr41xx_calculate_clock_frequency(); |
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tclock = vr41xx_get_tclock_frequency(); |
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if (current_cpu_data.processor_id == PRID_VR4131_REV2_0 || |
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current_cpu_data.processor_id == PRID_VR4131_REV2_1) |
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mips_hpt_frequency = tclock / 2; |
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else |
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mips_hpt_frequency = tclock / 4; |
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} |
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void __init plat_mem_setup(void) |
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{ |
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iomem_resource_init(); |
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vr41xx_siu_setup(); |
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} |
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void __init prom_init(void) |
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{ |
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int argc, i; |
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char **argv; |
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argc = fw_arg0; |
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argv = (char **)fw_arg1; |
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for (i = 1; i < argc; i++) { |
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strlcat(arcs_cmdline, argv[i], COMMAND_LINE_SIZE); |
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if (i < (argc - 1)) |
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strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE); |
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} |
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}
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