cpu_startup.h

Centrality Atlas II development software

/*
 * $QNXLicenseC:
 * Copyright 2008, QNX Software Systems. 
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"). You 
 * may not reproduce, modify or distribute this software except in 
 * compliance with the License. You may obtain a copy of the License 
 * at: http://www.apache.org/licenses/LICENSE-2.0 
 * 
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" basis, 
 * WITHOUT WARRANTIES OF ANY KIND, either express or implied.
 *
 * This file may contain contributions from others, either as 
 * contributors under the License or as licensors under other terms.  
 * Please review this entire file for other proprietary rights or license 
 * notices, as well as the QNX Development Suite License Guide at 
 * http://licensing.qnx.com/license-guide/ for other information.
 * $
 */



#include <arm/inout.h>
#include <arm/inline.h>
#include <arm/mmu.h>

/********************************************************************
*********************************************************************

	These definitions are required for the system independent code.

*********************************************************************
********************************************************************/

#define KERCALL_SEQUENCE(name)	uint32_t name[] = {			\
			0xef000000,		/* swi (syscall no. in ip)	*/	\
			0xe7ffffef		/* undefined instruction	*/	\
}

#define CPU_SYSPAGE_TYPE	SYSPAGE_ARM

struct cpu_local_syspage {
	SYSPAGE_SECTION(arm_boxinfo);
	SYSPAGE_SECTION(arm_cpu);
};

extern void print_arm_boxinfo(void);
extern void print_arm_cpu(void);

#define CPU_PRT_SYSPAGE_RTNS					\
	CPU_PRT_SYSPAGE_RTN(arm, 1, boxinfo),		\
	CPU_PRT_SYSPAGE_RTN(arm, 1, cpu),

#define BOOTSTRAPS_RUN_ONE_TO_ONE	0

#define CPU_COMMON_OPTIONS_STRING	"w:"

/********************************************************************
*********************************************************************

	Everything below is specific to the ARM.

*********************************************************************
********************************************************************/

/*
 * ------------------------------------------------------------------
 * Generic ARM support
 * ------------------------------------------------------------------
 */
extern unsigned long	arm_cpuspeed();
extern paddr_t			arm_map(uintptr_t va, paddr_t pa, size_t sz, int flags);
extern void				arm_pdmap(uintptr_t va);
extern void				arm_scmap(paddr_t va, paddr_t pa, int flags);
extern void				arm_scunmap(uintptr_t va);
extern void				arm_map_cpu(int cpu, uintptr_t va, paddr_t pa, int flags);

extern unsigned			trap_vectors;
extern unsigned			mmu_cr_set;
extern unsigned			mmu_cr_clr;
extern int				cycles_per_loop;
extern paddr_t			L1_paddr;
extern paddr_t			L1_vaddr;
extern paddr_t			L2_paddr;
extern paddr_t			startup_base;
extern unsigned			startup_size;

#define	ARM_MAP_SYSPAGE	0xffffffff		/* flags to arm_map() for syspage */

/*
 * ------------------------------------------------------------------
 * Cache/MMU/CPU configuration information
 * ------------------------------------------------------------------
 */
extern unsigned long	arm_cpuspeed();
/*
 * CPU cache configuration used if there is no CP15 cache type register
 */
struct arm_cache_config {
	unsigned					flags;
	unsigned					line_size;
	unsigned					num_lines;
};

/*
 * CPU cache callout and configuration
 */
struct armv_cache {
	const struct arm_cache_config	*dcache_config;
	const struct callout_rtn		*dcache_rtn;
	const struct arm_cache_config	*icache_config;
	const struct callout_rtn		*icache_rtn;
};

extern void		arm_add_cache(struct cpuinfo_entry *cpu, const struct armv_cache *cache);

extern const struct armv_cache	armv_cache_720;
extern const struct armv_cache	armv_cache_920;
extern const struct armv_cache	armv_cache_925;
extern const struct armv_cache	armv_cache_1020;
extern const struct armv_cache	armv_cache_sa1100;
extern const struct armv_cache	armv_cache_xscale;
extern const struct armv_cache	armv_cache_1136;
extern const struct armv_cache	armv_cache_mp11;
extern const struct armv_cache	armv_cache_xsc3;
extern const struct armv_cache	armv_cache_a8;

/*
 * MMU PTE details
 */
struct armv_pte {
	unsigned short		upte_ro;	// user RO mappings
	unsigned short		upte_rw;	// user RW mappings
	unsigned short		kpte_ro;	// kern RO mappings
	unsigned short		kpte_rw;	// kern RW mappings
	unsigned short		mask_nc;	// bits to clear for uncached mappings
	unsigned short		l1_pgtable;	// bits to set for L1 page table entry
	unsigned			kscn_ro;	// kern RO section mapping
	unsigned			kscn_rw;	// kern RW section mapping
	unsigned			kscn_cb;	// cacheable section mapping
};

extern const struct armv_pte	*armv_pte;
extern void						arm_pte_setup();
extern int						arm_altpte;

extern const struct armv_pte	armv_pte_v4wb;
extern const struct armv_pte	armv_pte_v4wt;
extern const struct armv_pte	armv_pte_v5wa;
extern const struct armv_pte	armv_pte_v5wb;
extern const struct armv_pte	armv_pte_v5wt;
extern const struct armv_pte	armv_pte_ixp2xxx;
extern const struct armv_pte	armv_pte_v6wb;
extern const struct armv_pte	armv_pte_v6mp;
extern const struct armv_pte	armv_pte_xsc3;
extern const struct armv_pte	armv_pte_v7wb;

/*
 * CPU specific configuration information
 */
struct armv_chip {
	unsigned					cpuid;		// bits 4-15 of CP15 C1
	const char					*name;
	unsigned					mmu_cr_set;	// CP15 C0 values to set
	unsigned					mmu_cr_clr;	// CP15 C0 values to clear
	int							cycles;		// cycles per arm_cpuspeed() loop
	const struct armv_cache		*cache;		// cache configuration
	const struct callout_rtn	*power;		// idle callout
	const struct callout_rtn	*flush;		// page_flush callout
	const struct callout_rtn	*deferred;	// page_flush_deferred callout
	const struct armv_pte		*pte;		// page table entries
	const struct armv_pte		*pte_wa;	// for -wa option
	const struct armv_pte		*pte_wb;	// for -wb option
	const struct armv_pte		*pte_wt;	// for -wt option
	void						(*setup)(struct cpuinfo_entry *cpu, unsigned cpuid);
};

extern const struct armv_chip	*armv_list[];
extern const struct armv_chip	*armv_chip_detect();

extern const struct armv_chip	armv_chip_720;
extern const struct armv_chip	armv_chip_920;
extern const struct armv_chip	armv_chip_922;
extern const struct armv_chip	armv_chip_925;
extern const struct armv_chip	armv_chip_926;
extern const struct armv_chip	armv_chip_1020;
extern const struct armv_chip	armv_chip_1022;
extern const struct armv_chip	armv_chip_sa1100;
extern const struct armv_chip	armv_chip_sa1110;
extern const struct armv_chip	armv_chip_ixp1200;
extern const struct armv_chip	armv_chip_80200;
extern const struct armv_chip	armv_chip_pxa250a;
extern const struct armv_chip	armv_chip_pxa250b;
extern const struct armv_chip	armv_chip_pxa255;
extern const struct armv_chip	armv_chip_pxa210b;
extern const struct armv_chip	armv_chip_pxa210c;
extern const struct armv_chip	armv_chip_pxa270;
extern const struct armv_chip	armv_chip_ixp2400;
extern const struct armv_chip	armv_chip_ixp2800;
extern const struct armv_chip	armv_chip_ixp23xx;
extern const struct armv_chip	armv_chip_ixp425;
extern const struct armv_chip	armv_chip_ixp465;
extern const struct armv_chip	armv_chip_mp11;
extern const struct armv_chip	armv_chip_1136;
extern const struct armv_chip	armv_chip_1176;
extern const struct armv_chip	armv_chip_a8;

/*
 * Operations supported for multiple cores
 */

extern struct callout_rtn	power_cp15_wfi;
extern void					armv_setup_v6(struct cpuinfo_entry *, unsigned, unsigned);
extern void					armv_setup_v7(struct cpuinfo_entry *, unsigned, unsigned);

/*
 * ------------------------------------------------------------------
 * SA-1100/1110 Processor Support
 * ------------------------------------------------------------------
 */

extern void	init_sa1100(unsigned, const char *, const char *);
extern void	put_sa1100(int);
extern void	init_qtime_sa1100(void);

extern unsigned				sa11x1_base;
extern unsigned				sa1100_grer;
extern unsigned				sa1100_gfer;

extern struct callout_rtn	reboot_sa1100;
extern struct callout_rtn	power_sa1100;

extern struct callout_rtn	interrupt_id_sa1100;
extern struct callout_rtn	interrupt_eoi_sa1100;
extern struct callout_rtn	interrupt_mask_sa1100;
extern struct callout_rtn	interrupt_unmask_sa1100;
extern struct callout_rtn	interrupt_id_sa1100_gpio;
extern struct callout_rtn	interrupt_eoi_sa1100_gpio;
extern struct callout_rtn	interrupt_mask_sa1100_gpio;
extern struct callout_rtn	interrupt_unmask_sa1100_gpio;

extern struct callout_rtn	display_char_sa1100;
extern struct callout_rtn	poll_key_sa1100;
extern struct callout_rtn	break_detect_sa1100;

extern struct callout_rtn	timer_load_sa1100;
extern struct callout_rtn	timer_value_sa1100;
extern struct callout_rtn	timer_reload_sa1100;

extern struct callout_rtn	cache_sa_i;
extern struct callout_rtn	cache_sa_d;

extern struct callout_rtn	page_flush_sa;
extern struct callout_rtn	page_flush_deferred_sa;

extern struct callout_rtn	interrupt_id_sa1101;
extern struct callout_rtn	interrupt_eoi_sa1101;
extern struct callout_rtn	interrupt_mask_sa1101;
extern struct callout_rtn	interrupt_unmask_sa1101;

extern struct callout_rtn	interrupt_id_sa1111;
extern struct callout_rtn	interrupt_eoi_sa1111;
extern struct callout_rtn	interrupt_mask_sa1111;
extern struct callout_rtn	interrupt_unmask_sa1111;

extern unsigned long		rtc_time_sa1100(unsigned);

/*
 * ------------------------------------------------------------------
 * Xscale processor support
 * ------------------------------------------------------------------
 */

extern struct callout_rtn	power_xscale;

extern struct callout_rtn	cache_xscale_i;
extern struct callout_rtn	cache_xscale_d;

extern struct callout_rtn	page_flush_xscale;
extern struct callout_rtn	page_flush_deferred_xscale;

extern void					armv_setup_xscale(struct cpuinfo_entry *, unsigned);

extern struct callout_rtn	cache_xsc3_i;
extern struct callout_rtn	cache_xsc3_d;

extern struct callout_rtn	page_flush_xsc3;
extern struct callout_rtn	page_flush_deferred_xsc3;

/*
 * ------------------------------------------------------------------
 * ARM720T processor support
 * ------------------------------------------------------------------
 */

extern struct callout_rtn	cache_720;

extern struct callout_rtn	page_flush_720;
extern struct callout_rtn	page_flush_deferred_720;

/*
 * ------------------------------------------------------------------
 * ARM920T processor support
 * ------------------------------------------------------------------
 */

extern struct callout_rtn	cache_920_i;
extern struct callout_rtn	cache_920_d;

extern struct callout_rtn	page_flush_920;
extern struct callout_rtn	page_flush_deferred_920;

extern struct callout_rtn	cache_925_i;
extern struct callout_rtn	cache_925_d;

extern struct callout_rtn	page_flush_925;
extern struct callout_rtn	page_flush_deferred_925;

/*
 * ------------------------------------------------------------------
 * ARM1020T processor support
 * ------------------------------------------------------------------
 */

extern struct callout_rtn	cache_1020_i;
extern struct callout_rtn	cache_1020_d;

extern struct callout_rtn	page_flush_1020;
extern struct callout_rtn	page_flush_deferred_1020;

/*
 * ------------------------------------------------------------------
 * PrimeCell UART/RTC support
 * ------------------------------------------------------------------
 */
extern void	init_primecell(unsigned, const char *, const char *);
extern void	put_primecell(int);

extern struct callout_rtn	display_char_primecell;
extern struct callout_rtn	poll_key_primecell;
extern struct callout_rtn	break_detect_primecell;

extern unsigned long		rtc_time_primecell(unsigned);

/*
 * ------------------------------------------------------------------
 * PXA250 support
 * ------------------------------------------------------------------
 */

extern void	init_pxa250(unsigned, const char *, const char *);
extern void	put_pxa250(int);
extern void	init_qtime_pxa250(void);

extern struct callout_rtn	display_char_pxa250;
extern struct callout_rtn	poll_key_pxa250;
extern struct callout_rtn	break_detect_pxa250;

extern struct callout_rtn	timer_load_pxa250;
extern struct callout_rtn	timer_value_pxa250;
extern struct callout_rtn	timer_reload_pxa250;

extern struct callout_rtn	interrupt_id_pxa250;
extern struct callout_rtn	interrupt_eoi_pxa250;
extern struct callout_rtn	interrupt_mask_pxa250;
extern struct callout_rtn	interrupt_unmask_pxa250;
extern struct callout_rtn	interrupt_id_pxa250_gpio;
extern struct callout_rtn	interrupt_eoi_pxa250_gpio;
extern struct callout_rtn	interrupt_mask_pxa250_gpio;
extern struct callout_rtn	interrupt_unmask_pxa250_gpio;

extern unsigned long		rtc_time_pxa250(unsigned);

/*
 * ------------------------------------------------------------------
 * PXA270 support
 * ------------------------------------------------------------------
 */

extern void	init_qtime_pxa270(void);

extern struct callout_rtn	interrupt_id_pxa270;
extern struct callout_rtn	interrupt_eoi_pxa270;
extern struct callout_rtn	interrupt_mask_pxa270;
extern struct callout_rtn	interrupt_unmask_pxa270;
extern struct callout_rtn	interrupt_id_pxa270_gpio;
extern struct callout_rtn	interrupt_eoi_pxa270_gpio;
extern struct callout_rtn	interrupt_mask_pxa270_gpio;
extern struct callout_rtn	interrupt_unmask_pxa270_gpio;

/*
 * ------------------------------------------------------------------