125 lines
2.8 KiB
C
125 lines
2.8 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Alchemy DB/PB1xxx board support.
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*/
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#include <asm/prom.h>
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#include <asm/mach-au1x00/au1000.h>
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#include <asm/mach-db1x00/bcsr.h>
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int __init db1000_board_setup(void);
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int __init db1000_dev_setup(void);
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int __init db1500_pci_setup(void);
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int __init db1200_board_setup(void);
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int __init db1200_dev_setup(void);
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int __init db1300_board_setup(void);
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int __init db1300_dev_setup(void);
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int __init db1550_board_setup(void);
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int __init db1550_dev_setup(void);
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int __init db1550_pci_setup(int);
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static const char *board_type_str(void)
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{
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switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
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case BCSR_WHOAMI_DB1000:
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return "DB1000";
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case BCSR_WHOAMI_DB1500:
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return "DB1500";
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case BCSR_WHOAMI_DB1100:
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return "DB1100";
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case BCSR_WHOAMI_PB1500:
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case BCSR_WHOAMI_PB1500R2:
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return "PB1500";
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case BCSR_WHOAMI_PB1100:
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return "PB1100";
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case BCSR_WHOAMI_PB1200_DDR1:
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case BCSR_WHOAMI_PB1200_DDR2:
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return "PB1200";
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case BCSR_WHOAMI_DB1200:
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return "DB1200";
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case BCSR_WHOAMI_DB1300:
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return "DB1300";
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case BCSR_WHOAMI_DB1550:
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return "DB1550";
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case BCSR_WHOAMI_PB1550_SDR:
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case BCSR_WHOAMI_PB1550_DDR:
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return "PB1550";
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default:
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return "(unknown)";
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}
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}
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const char *get_system_type(void)
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{
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return board_type_str();
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}
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void __init board_setup(void)
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{
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int ret;
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switch (alchemy_get_cputype()) {
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case ALCHEMY_CPU_AU1000:
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case ALCHEMY_CPU_AU1500:
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case ALCHEMY_CPU_AU1100:
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ret = db1000_board_setup();
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break;
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case ALCHEMY_CPU_AU1550:
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ret = db1550_board_setup();
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break;
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case ALCHEMY_CPU_AU1200:
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ret = db1200_board_setup();
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break;
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case ALCHEMY_CPU_AU1300:
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ret = db1300_board_setup();
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break;
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default:
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pr_err("unsupported CPU on board\n");
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ret = -ENODEV;
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}
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if (ret)
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panic("cannot initialize board support");
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}
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static int __init db1xxx_arch_init(void)
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{
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int id = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
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if (id == BCSR_WHOAMI_DB1550)
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return db1550_pci_setup(0);
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else if ((id == BCSR_WHOAMI_PB1550_SDR) ||
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(id == BCSR_WHOAMI_PB1550_DDR))
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return db1550_pci_setup(1);
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else if ((id == BCSR_WHOAMI_DB1500) || (id == BCSR_WHOAMI_PB1500) ||
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(id == BCSR_WHOAMI_PB1500R2))
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return db1500_pci_setup();
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return 0;
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}
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arch_initcall(db1xxx_arch_init);
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static int __init db1xxx_dev_init(void)
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{
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mips_set_machine_name(board_type_str());
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switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
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case BCSR_WHOAMI_DB1000:
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case BCSR_WHOAMI_DB1500:
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case BCSR_WHOAMI_DB1100:
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case BCSR_WHOAMI_PB1500:
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case BCSR_WHOAMI_PB1500R2:
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case BCSR_WHOAMI_PB1100:
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return db1000_dev_setup();
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case BCSR_WHOAMI_PB1200_DDR1:
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case BCSR_WHOAMI_PB1200_DDR2:
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case BCSR_WHOAMI_DB1200:
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return db1200_dev_setup();
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case BCSR_WHOAMI_DB1300:
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return db1300_dev_setup();
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case BCSR_WHOAMI_DB1550:
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case BCSR_WHOAMI_PB1550_SDR:
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case BCSR_WHOAMI_PB1550_DDR:
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return db1550_dev_setup();
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}
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return 0;
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}
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device_initcall(db1xxx_dev_init);
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