8c3583b634
instead of reading the registers everytime the current implementation respect the following constrain: - allow 1 to n soc to be enabled - allow to have a virtual cpu type and subtype - always detect the cpu type and subtype and report it - detect if the soc support is enabled - prepare for sysfs export support - drop soc specific code via compiler when the soc not enabled (via cpu_is_xxx) Today if we read the exid we will have the same value for 9g35 and 9m11 and we will need to check the cidr too with the new implementation we just need to check the soc subtype this will also allow to have specific virtual subtype for rm9200 which the board will have to specify via at91rm9200_set_type(int) as we have no way to detect it. this implementation is inspired by the SH cpu detection support Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
/*
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* Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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*
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* Under GPLv2
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*/
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struct at91_init_soc {
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unsigned int *default_irq_priority;
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void (*map_io)(void);
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void (*init)(unsigned long main_clock);
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};
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extern struct at91_init_soc at91_boot_soc;
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extern struct at91_init_soc at91cap9_soc;
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extern struct at91_init_soc at91rm9200_soc;
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extern struct at91_init_soc at91sam9260_soc;
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extern struct at91_init_soc at91sam9261_soc;
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extern struct at91_init_soc at91sam9263_soc;
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extern struct at91_init_soc at91sam9g45_soc;
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extern struct at91_init_soc at91sam9rl_soc;
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extern struct at91_init_soc at91sam9x5_soc;
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static inline int at91_soc_is_enabled(void)
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{
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return at91_boot_soc.init != NULL;
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}
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#if !defined(CONFIG_ARCH_AT91CAP9)
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#define at91cap9_soc at91_boot_soc
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#endif
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#if !defined(CONFIG_ARCH_AT91RM9200)
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#define at91rm9200_soc at91_boot_soc
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#endif
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#if !(defined(CONFIG_ARCH_AT91SAM9260) || defined(CONFIG_ARCH_AT91SAM9G20))
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#define at91sam9260_soc at91_boot_soc
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#endif
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#if !(defined(CONFIG_ARCH_AT91SAM9261) || defined(CONFIG_ARCH_AT91SAM9G10))
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#define at91sam9261_soc at91_boot_soc
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#endif
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#if !defined(CONFIG_ARCH_AT91SAM9263)
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#define at91sam9263_soc at91_boot_soc
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#endif
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#if !defined(CONFIG_ARCH_AT91SAM9G45)
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#define at91sam9g45_soc at91_boot_soc
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#endif
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#if !defined(CONFIG_ARCH_AT91SAM9RL)
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#define at91sam9rl_soc at91_boot_soc
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#endif
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#if !defined(CONFIG_ARCH_AT91SAM9X5)
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#define at91sam9x5_soc at91_boot_soc
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#endif
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