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-rw-r--r--arch/mips/alchemy/devboards/db1xxx.c124
1 files changed, 124 insertions, 0 deletions
diff --git a/arch/mips/alchemy/devboards/db1xxx.c b/arch/mips/alchemy/devboards/db1xxx.c
new file mode 100644
index 000000000..e6d25aad8
--- /dev/null
+++ b/arch/mips/alchemy/devboards/db1xxx.c
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Alchemy DB/PB1xxx board support.
+ */
+
+#include <asm/prom.h>
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-db1x00/bcsr.h>
+
+int __init db1000_board_setup(void);
+int __init db1000_dev_setup(void);
+int __init db1500_pci_setup(void);
+int __init db1200_board_setup(void);
+int __init db1200_dev_setup(void);
+int __init db1300_board_setup(void);
+int __init db1300_dev_setup(void);
+int __init db1550_board_setup(void);
+int __init db1550_dev_setup(void);
+int __init db1550_pci_setup(int);
+
+static const char *board_type_str(void)
+{
+ switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
+ case BCSR_WHOAMI_DB1000:
+ return "DB1000";
+ case BCSR_WHOAMI_DB1500:
+ return "DB1500";
+ case BCSR_WHOAMI_DB1100:
+ return "DB1100";
+ case BCSR_WHOAMI_PB1500:
+ case BCSR_WHOAMI_PB1500R2:
+ return "PB1500";
+ case BCSR_WHOAMI_PB1100:
+ return "PB1100";
+ case BCSR_WHOAMI_PB1200_DDR1:
+ case BCSR_WHOAMI_PB1200_DDR2:
+ return "PB1200";
+ case BCSR_WHOAMI_DB1200:
+ return "DB1200";
+ case BCSR_WHOAMI_DB1300:
+ return "DB1300";
+ case BCSR_WHOAMI_DB1550:
+ return "DB1550";
+ case BCSR_WHOAMI_PB1550_SDR:
+ case BCSR_WHOAMI_PB1550_DDR:
+ return "PB1550";
+ default:
+ return "(unknown)";
+ }
+}
+
+const char *get_system_type(void)
+{
+ return board_type_str();
+}
+
+void __init board_setup(void)
+{
+ int ret;
+
+ switch (alchemy_get_cputype()) {
+ case ALCHEMY_CPU_AU1000:
+ case ALCHEMY_CPU_AU1500:
+ case ALCHEMY_CPU_AU1100:
+ ret = db1000_board_setup();
+ break;
+ case ALCHEMY_CPU_AU1550:
+ ret = db1550_board_setup();
+ break;
+ case ALCHEMY_CPU_AU1200:
+ ret = db1200_board_setup();
+ break;
+ case ALCHEMY_CPU_AU1300:
+ ret = db1300_board_setup();
+ break;
+ default:
+ pr_err("unsupported CPU on board\n");
+ ret = -ENODEV;
+ }
+ if (ret)
+ panic("cannot initialize board support");
+}
+
+static int __init db1xxx_arch_init(void)
+{
+ int id = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
+ if (id == BCSR_WHOAMI_DB1550)
+ return db1550_pci_setup(0);
+ else if ((id == BCSR_WHOAMI_PB1550_SDR) ||
+ (id == BCSR_WHOAMI_PB1550_DDR))
+ return db1550_pci_setup(1);
+ else if ((id == BCSR_WHOAMI_DB1500) || (id == BCSR_WHOAMI_PB1500) ||
+ (id == BCSR_WHOAMI_PB1500R2))
+ return db1500_pci_setup();
+
+ return 0;
+}
+arch_initcall(db1xxx_arch_init);
+
+static int __init db1xxx_dev_init(void)
+{
+ mips_set_machine_name(board_type_str());
+ switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
+ case BCSR_WHOAMI_DB1000:
+ case BCSR_WHOAMI_DB1500:
+ case BCSR_WHOAMI_DB1100:
+ case BCSR_WHOAMI_PB1500:
+ case BCSR_WHOAMI_PB1500R2:
+ case BCSR_WHOAMI_PB1100:
+ return db1000_dev_setup();
+ case BCSR_WHOAMI_PB1200_DDR1:
+ case BCSR_WHOAMI_PB1200_DDR2:
+ case BCSR_WHOAMI_DB1200:
+ return db1200_dev_setup();
+ case BCSR_WHOAMI_DB1300:
+ return db1300_dev_setup();
+ case BCSR_WHOAMI_DB1550:
+ case BCSR_WHOAMI_PB1550_SDR:
+ case BCSR_WHOAMI_PB1550_DDR:
+ return db1550_dev_setup();
+ }
+ return 0;
+}
+device_initcall(db1xxx_dev_init);