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-rw-r--r--arch/mips/lantiq/xway/prom.c144
1 files changed, 144 insertions, 0 deletions
diff --git a/arch/mips/lantiq/xway/prom.c b/arch/mips/lantiq/xway/prom.c
new file mode 100644
index 0000000000..544619754b
--- /dev/null
+++ b/arch/mips/lantiq/xway/prom.c
@@ -0,0 +1,144 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *
+ * Copyright (C) 2010 John Crispin <john@phrozen.org>
+ * Copyright (C) 2013-2015 Lantiq Beteiligungs-GmbH & Co.KG
+ */
+
+#include <linux/export.h>
+#include <linux/clk.h>
+#include <asm/bootinfo.h>
+#include <asm/time.h>
+
+#include <lantiq_soc.h>
+
+#include "../prom.h"
+
+#define SOC_DANUBE "Danube"
+#define SOC_TWINPASS "Twinpass"
+#define SOC_AMAZON_SE "Amazon_SE"
+#define SOC_AR9 "AR9"
+#define SOC_GR9 "GRX200"
+#define SOC_VR9 "xRX200"
+#define SOC_VRX220 "xRX220"
+#define SOC_AR10 "xRX300"
+#define SOC_GRX390 "xRX330"
+
+#define COMP_DANUBE "lantiq,danube"
+#define COMP_TWINPASS "lantiq,twinpass"
+#define COMP_AMAZON_SE "lantiq,ase"
+#define COMP_AR9 "lantiq,ar9"
+#define COMP_GR9 "lantiq,gr9"
+#define COMP_VR9 "lantiq,vr9"
+#define COMP_AR10 "lantiq,ar10"
+#define COMP_GRX390 "lantiq,grx390"
+
+#define PART_SHIFT 12
+#define PART_MASK 0x0FFFFFFF
+#define REV_SHIFT 28
+#define REV_MASK 0xF0000000
+
+void __init ltq_soc_detect(struct ltq_soc_info *i)
+{
+ i->partnum = (ltq_r32(LTQ_MPS_CHIPID) & PART_MASK) >> PART_SHIFT;
+ i->rev = (ltq_r32(LTQ_MPS_CHIPID) & REV_MASK) >> REV_SHIFT;
+ sprintf(i->rev_type, "1.%d", i->rev);
+ switch (i->partnum) {
+ case SOC_ID_DANUBE1:
+ case SOC_ID_DANUBE2:
+ i->name = SOC_DANUBE;
+ i->type = SOC_TYPE_DANUBE;
+ i->compatible = COMP_DANUBE;
+ break;
+
+ case SOC_ID_TWINPASS:
+ i->name = SOC_TWINPASS;
+ i->type = SOC_TYPE_DANUBE;
+ i->compatible = COMP_TWINPASS;
+ break;
+
+ case SOC_ID_ARX188:
+ case SOC_ID_ARX168_1:
+ case SOC_ID_ARX168_2:
+ case SOC_ID_ARX182:
+ i->name = SOC_AR9;
+ i->type = SOC_TYPE_AR9;
+ i->compatible = COMP_AR9;
+ break;
+
+ case SOC_ID_GRX188:
+ case SOC_ID_GRX168:
+ i->name = SOC_GR9;
+ i->type = SOC_TYPE_AR9;
+ i->compatible = COMP_GR9;
+ break;
+
+ case SOC_ID_AMAZON_SE_1:
+ case SOC_ID_AMAZON_SE_2:
+#ifdef CONFIG_PCI
+ panic("ase is only supported for non pci kernels");
+#endif
+ i->name = SOC_AMAZON_SE;
+ i->type = SOC_TYPE_AMAZON_SE;
+ i->compatible = COMP_AMAZON_SE;
+ break;
+
+ case SOC_ID_VRX282:
+ case SOC_ID_VRX268:
+ case SOC_ID_VRX288:
+ i->name = SOC_VR9;
+ i->type = SOC_TYPE_VR9;
+ i->compatible = COMP_VR9;
+ break;
+
+ case SOC_ID_GRX268:
+ case SOC_ID_GRX288:
+ i->name = SOC_GR9;
+ i->type = SOC_TYPE_VR9;
+ i->compatible = COMP_GR9;
+ break;
+
+ case SOC_ID_VRX268_2:
+ case SOC_ID_VRX288_2:
+ i->name = SOC_VR9;
+ i->type = SOC_TYPE_VR9_2;
+ i->compatible = COMP_VR9;
+ break;
+
+ case SOC_ID_VRX220:
+ i->name = SOC_VRX220;
+ i->type = SOC_TYPE_VRX220;
+ i->compatible = COMP_VR9;
+ break;
+
+ case SOC_ID_GRX282_2:
+ case SOC_ID_GRX288_2:
+ i->name = SOC_GR9;
+ i->type = SOC_TYPE_VR9_2;
+ i->compatible = COMP_GR9;
+ break;
+
+ case SOC_ID_ARX362:
+ case SOC_ID_ARX368:
+ case SOC_ID_ARX382:
+ case SOC_ID_ARX388:
+ case SOC_ID_URX388:
+ i->name = SOC_AR10;
+ i->type = SOC_TYPE_AR10;
+ i->compatible = COMP_AR10;
+ break;
+
+ case SOC_ID_GRX383:
+ case SOC_ID_GRX369:
+ case SOC_ID_GRX387:
+ case SOC_ID_GRX389:
+ i->name = SOC_GRX390;
+ i->type = SOC_TYPE_GRX390;
+ i->compatible = COMP_GRX390;
+ break;
+
+ default:
+ unreachable();
+ break;
+ }
+}