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MIPS: Loongson64: Load LS7A dtbs
Load correct devicetree according to PRID and PCH type. Signed-off-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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@ -126,28 +126,6 @@ void __init prom_init_env(void)
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loongson_sysconf.cores_per_node - 1) /
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loongson_sysconf.cores_per_node;
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if ((read_c0_prid() & PRID_IMP_MASK) == PRID_IMP_LOONGSON_64C) {
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switch (read_c0_prid() & PRID_REV_MASK) {
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case PRID_REV_LOONGSON3A_R1:
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case PRID_REV_LOONGSON3A_R2_0:
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case PRID_REV_LOONGSON3A_R2_1:
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case PRID_REV_LOONGSON3A_R3_0:
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case PRID_REV_LOONGSON3A_R3_1:
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loongson_fdt_blob = __dtb_loongson64c_4core_rs780e_begin;
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break;
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case PRID_REV_LOONGSON3B_R1:
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case PRID_REV_LOONGSON3B_R2:
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loongson_fdt_blob = __dtb_loongson64c_8core_rs780e_begin;
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break;
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default:
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break;
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}
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}
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if (!loongson_fdt_blob)
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pr_err("Failed to determine built-in Loongson64 dtb\n");
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loongson_sysconf.pci_mem_start_addr = eirq_source->pci_mem_start_addr;
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loongson_sysconf.pci_mem_end_addr = eirq_source->pci_mem_end_addr;
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loongson_sysconf.pci_io_base = eirq_source->pci_io_start_addr;
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@ -198,4 +176,38 @@ void __init prom_init_env(void)
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loongson_sysconf.bridgetype = RS780E;
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loongson_sysconf.early_config = rs780e_early_config;
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}
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if ((read_c0_prid() & PRID_IMP_MASK) == PRID_IMP_LOONGSON_64C) {
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switch (read_c0_prid() & PRID_REV_MASK) {
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case PRID_REV_LOONGSON3A_R1:
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case PRID_REV_LOONGSON3A_R2_0:
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case PRID_REV_LOONGSON3A_R2_1:
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case PRID_REV_LOONGSON3A_R3_0:
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case PRID_REV_LOONGSON3A_R3_1:
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switch (loongson_sysconf.bridgetype) {
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case LS7A:
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loongson_fdt_blob = __dtb_loongson64c_4core_ls7a_begin;
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break;
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case RS780E:
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loongson_fdt_blob = __dtb_loongson64c_4core_rs780e_begin;
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break;
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default:
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break;
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}
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break;
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case PRID_REV_LOONGSON3B_R1:
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case PRID_REV_LOONGSON3B_R2:
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if (loongson_sysconf.bridgetype == RS780E)
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loongson_fdt_blob = __dtb_loongson64c_8core_rs780e_begin;
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break;
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default:
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break;
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}
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} else if ((read_c0_prid() & PRID_IMP_MASK) == PRID_IMP_LOONGSON_64G) {
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if (loongson_sysconf.bridgetype == LS7A)
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loongson_fdt_blob = __dtb_loongson64g_4core_ls7a_begin;
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}
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if (!loongson_fdt_blob)
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pr_err("Failed to determine built-in Loongson64 dtb\n");
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}
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