Release 4.14 arch/mips/alchemy/devboards/db1xxx.c

// 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)";
	}
}

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const char *get_system_type(void)
{
	return board_type_str();
}

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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");
}

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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;
}
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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;
}
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device_initcall(db1xxx_dev_init);
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Directory: arch/mips/alchemy/devboards

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