修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/arch/ia64/uv/kernel/setup.c
..
..
@@ -8,24 +8,19 @@
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  * Copyright (C) 2008 Silicon Graphics, Inc. All rights reserved.
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  */
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+#include <linux/acpi.h>
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+#include <linux/efi.h>
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 #include <linux/module.h>
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 #include <linux/percpu.h>
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-#include <asm/sn/simulator.h>
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+#include <asm/uv/uv.h>
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 #include <asm/uv/uv_mmrs.h>
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 #include <asm/uv/uv_hub.h>
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+bool ia64_is_uv;
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+EXPORT_SYMBOL_GPL(ia64_is_uv);
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+
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 DEFINE_PER_CPU(struct uv_hub_info_s, __uv_hub_info);
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 EXPORT_PER_CPU_SYMBOL_GPL(__uv_hub_info);
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-
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-#ifdef CONFIG_IA64_SGI_UV
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-int sn_prom_type;
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-long sn_partition_id;
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-EXPORT_SYMBOL(sn_partition_id);
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-long sn_coherency_id;
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-EXPORT_SYMBOL_GPL(sn_coherency_id);
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-long sn_region_size;
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-EXPORT_SYMBOL(sn_region_size);
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-#endif
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 struct redir_addr {
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 	unsigned long redirect;
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@@ -58,6 +53,34 @@
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 	BUG();
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 }
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+void __init uv_probe_system_type(void)
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+{
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+	struct acpi_table_rsdp *rsdp;
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+	struct acpi_table_xsdt *xsdt;
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+
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+	if (efi.acpi20 == EFI_INVALID_TABLE_ADDR) {
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+		pr_err("ACPI 2.0 RSDP not found.\n");
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+		return;
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+	}
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+
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+	rsdp = (struct acpi_table_rsdp *)__va(efi.acpi20);
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+	if (strncmp(rsdp->signature, ACPI_SIG_RSDP, sizeof(ACPI_SIG_RSDP) - 1)) {
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+		pr_err("ACPI 2.0 RSDP signature incorrect.\n");
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+		return;
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+	}
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+
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+	xsdt = (struct acpi_table_xsdt *)__va(rsdp->xsdt_physical_address);
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+	if (strncmp(xsdt->header.signature, ACPI_SIG_XSDT,
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+			sizeof(ACPI_SIG_XSDT) - 1)) {
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+		pr_err("ACPI 2.0 XSDT signature incorrect.\n");
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+		return;
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+	}
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+
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+	if (!strcmp(xsdt->header.oem_id, "SGI") &&
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+	    !strcmp(xsdt->header.oem_table_id + 4, "UV"))
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+		ia64_is_uv = true;
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+}
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+
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 void __init uv_setup(char **cmdline_p)
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 {
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 	union uvh_si_addr_map_config_u m_n_config;
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@@ -66,30 +89,11 @@
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 	int nid, cpu, m_val, n_val;
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 	unsigned long mmr_base, lowmem_redir_base, lowmem_redir_size;
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-	if (IS_MEDUSA()) {
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-		lowmem_redir_base = 0;
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-		lowmem_redir_size = 0;
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-		node_id.v = 0;
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-		m_n_config.s.m_skt = 37;
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-		m_n_config.s.n_skt = 0;
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-		mmr_base = 0;
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-#if 0
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-		/* Need BIOS calls - TDB */
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-		if (!ia64_sn_is_fake_prom())
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-			sn_prom_type = 1;
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-		else
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-#endif
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-			sn_prom_type = 2;
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-		printk(KERN_INFO "Running on medusa with %s PROM\n",
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-					(sn_prom_type == 1) ? "real" : "fake");
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-	} else {
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-		get_lowmem_redirect(&lowmem_redir_base, &lowmem_redir_size);
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-		node_id.v = uv_read_local_mmr(UVH_NODE_ID);
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-		m_n_config.v = uv_read_local_mmr(UVH_SI_ADDR_MAP_CONFIG);
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-		mmr_base =
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-			uv_read_local_mmr(UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR) &
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-				~UV_MMR_ENABLE;
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-	}
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+	get_lowmem_redirect(&lowmem_redir_base, &lowmem_redir_size);
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+	node_id.v = uv_read_local_mmr(UVH_NODE_ID);
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+	m_n_config.v = uv_read_local_mmr(UVH_SI_ADDR_MAP_CONFIG);
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+	mmr_base = uv_read_local_mmr(UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR) &
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+			~UV_MMR_ENABLE;
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 	m_val = m_n_config.s.m_skt;
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 	n_val = m_n_config.s.n_skt;