35fb234d39
The mango cpu of sophgo is a 64 cores C920 CPU. The board with mango can have at most two sockets. The CPU have the following features: 1) support RV64GCV 2) one seperate timer each cluster 3) T-HEAD pmu device Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c)
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*
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* Authors:
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* Inochi Amaoto <inochiama@outlook.com>
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* YuQing Cai <caiyuqing_hz@163.com>
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* ZhenYu Zhang <1204122531@qq.com>
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*/
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#include <platform_override.h>
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#include <thead_c9xx.h>
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#include <sbi/riscv_asm.h>
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#include <sbi/riscv_encoding.h>
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#include <sbi/sbi_const.h>
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#include <sbi/sbi_ecall_interface.h>
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#include <sbi/sbi_pmu.h>
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#include <sbi/sbi_domain.h>
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#include <sbi/sbi_platform.h>
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#include <sbi_utils/fdt/fdt_helper.h>
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#include <sbi_utils/timer/aclint_mtimer.h>
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#define SOPHGO_MANGO_TIMER_BASE 0x70ac000000UL
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#define SOPHGO_MANGO_TIMER_OFFSET 0x10000UL
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int mango_early_init(bool cold_boot, const struct fdt_match *match)
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{
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const struct sbi_platform * plat = sbi_platform_thishart_ptr();
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/*
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* Sophgo mango board use seperate 16/32 timers while initiating,
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* merge them as a single domain to avoid wasting.
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*/
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if (cold_boot)
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return sbi_domain_root_add_memrange(SOPHGO_MANGO_TIMER_BASE,
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SOPHGO_MANGO_TIMER_OFFSET *
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sbi_platform_hart_count(plat),
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MTIMER_REGION_ALIGN,
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(SBI_DOMAIN_MEMREGION_MMIO |
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SBI_DOMAIN_MEMREGION_M_READABLE |
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SBI_DOMAIN_MEMREGION_M_WRITABLE));
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return 0;
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}
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static int mango_extensions_init(const struct fdt_match *match,
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struct sbi_hart_features *hfeatures)
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{
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sbi_pmu_set_device(&thead_c9xx_pmu_device);
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/* auto-detection doesn't work on t-head c9xx cores */
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hfeatures->mhpm_count = 29;
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hfeatures->mhpm_bits = 64;
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return 0;
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}
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static const struct fdt_match sophgo_mango_match[] = {
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{ .compatible = "sophgo,mango" },
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{ },
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};
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const struct platform_override sophgo_mango = {
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.match_table = sophgo_mango_match,
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.early_init = mango_early_init,
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.extensions_init = mango_extensions_init,
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};
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