1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
168 lines
4.4 KiB
C
168 lines
4.4 KiB
C
/*
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* arch/ppc/platforms/gemini.h
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*
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*
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* Onboard registers and descriptions for Synergy Microsystems'
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* "Gemini" boards.
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*
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*/
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#ifdef __KERNEL__
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#ifndef __PPC_GEMINI_H
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#define __PPC_GEMINI_H
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/* Registers */
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#define GEMINI_SERIAL_B (0xffeffb00)
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#define GEMINI_SERIAL_A (0xffeffb08)
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#define GEMINI_USWITCH (0xffeffd00)
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#define GEMINI_BREV (0xffeffe00)
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#define GEMINI_BECO (0xffeffe08)
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#define GEMINI_FEAT (0xffeffe10)
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#define GEMINI_BSTAT (0xffeffe18)
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#define GEMINI_CPUSTAT (0xffeffe20)
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#define GEMINI_L2CFG (0xffeffe30)
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#define GEMINI_MEMCFG (0xffeffe38)
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#define GEMINI_FLROM (0xffeffe40)
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#define GEMINI_P0PCI (0xffeffe48)
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#define GEMINI_FLWIN (0xffeffe50)
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#define GEMINI_P0INTMASK (0xffeffe60)
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#define GEMINI_P0INTAP (0xffeffe68)
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#define GEMINI_PCIERR (0xffeffe70)
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#define GEMINI_LEDBASE (0xffeffe80)
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#define GEMINI_RTC (0xffe9fff8)
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#define GEMINI_LEDS 8
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#define GEMINI_SWITCHES 8
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/* Flash ROM bit definitions */
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#define GEMINI_FLS_WEN (1<<0)
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#define GEMINI_FLS_JMP (1<<6)
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#define GEMINI_FLS_BOOT (1<<7)
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/* Memory bit definitions */
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#define GEMINI_MEM_TYPE_MASK 0xc0
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#define GEMINI_MEM_SIZE_MASK 0x38
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#define GEMINI_MEM_BANK_MASK 0x07
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/* L2 cache bit definitions */
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#define GEMINI_L2_SIZE_MASK 0xc0
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#define GEMINI_L2_RATIO_MASK 0x03
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/* Timebase register bit definitons */
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#define GEMINI_TIMEB0_EN (1<<0)
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#define GEMINI_TIMEB1_EN (1<<1)
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#define GEMINI_TIMEB2_EN (1<<2)
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#define GEMINI_TIMEB3_EN (1<<3)
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/* CPU status bit definitions */
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#define GEMINI_CPU_ID_MASK 0x03
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#define GEMINI_CPU_COUNT_MASK 0x0c
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#define GEMINI_CPU0_HALTED (1<<4)
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#define GEMINI_CPU1_HALTED (1<<5)
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#define GEMINI_CPU2_HALTED (1<<6)
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#define GEMINI_CPU3_HALTED (1<<7)
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/* Board status bit definitions */
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#define GEMINI_BRD_FAIL (1<<0) /* FAIL led is lit */
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#define GEMINI_BRD_BUS_MASK 0x0c /* PowerPC bus speed */
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/* Board family/feature bit descriptions */
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#define GEMINI_FEAT_HAS_FLASH (1<<0)
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#define GEMINI_FEAT_HAS_ETH (1<<1)
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#define GEMINI_FEAT_HAS_SCSI (1<<2)
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#define GEMINI_FEAT_HAS_P0 (1<<3)
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#define GEMINI_FEAT_FAM_MASK 0xf0
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/* Mod/ECO bit definitions */
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#define GEMINI_ECO_LEVEL_MASK 0x0f
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#define GEMINI_MOD_MASK 0xf0
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/* Type/revision bit definitions */
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#define GEMINI_REV_MASK 0x0f
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#define GEMINI_TYPE_MASK 0xf0
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/* User switch definitions */
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#define GEMINI_SWITCH_VERBOSE 1 /* adds "debug" to boot cmd line */
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#define GEMINI_SWITCH_SINGLE_USER 7 /* boots into "single-user" mode */
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#define SGS_RTC_CONTROL 0
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#define SGS_RTC_SECONDS 1
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#define SGS_RTC_MINUTES 2
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#define SGS_RTC_HOURS 3
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#define SGS_RTC_DAY 4
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#define SGS_RTC_DAY_OF_MONTH 5
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#define SGS_RTC_MONTH 6
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#define SGS_RTC_YEAR 7
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#define SGS_RTC_SET 0x80
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#define SGS_RTC_IS_STOPPED 0x80
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#define GRACKLE_CONFIG_ADDR_ADDR (0xfec00000)
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#define GRACKLE_CONFIG_DATA_ADDR (0xfee00000)
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#define GEMINI_BOOT_INIT (0xfff00100)
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#ifndef __ASSEMBLY__
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static inline void grackle_write( unsigned long addr, unsigned long data )
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{
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__asm__ __volatile__(
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" stwbrx %1, 0, %0\n \
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sync\n \
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stwbrx %3, 0, %2\n \
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sync "
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: /* no output */
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: "r" (GRACKLE_CONFIG_ADDR_ADDR), "r" (addr),
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"r" (GRACKLE_CONFIG_DATA_ADDR), "r" (data));
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}
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static inline unsigned long grackle_read( unsigned long addr )
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{
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unsigned long val;
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__asm__ __volatile__(
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" stwbrx %1, 0, %2\n \
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sync\n \
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lwbrx %0, 0, %3\n \
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sync "
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: "=r" (val)
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: "r" (addr), "r" (GRACKLE_CONFIG_ADDR_ADDR),
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"r" (GRACKLE_CONFIG_DATA_ADDR));
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return val;
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}
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static inline void gemini_led_on( int led )
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{
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if (led >= 0 && led < GEMINI_LEDS)
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*(unsigned char *)(GEMINI_LEDBASE + (led<<3)) = 1;
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}
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static inline void gemini_led_off(int led)
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{
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if (led >= 0 && led < GEMINI_LEDS)
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*(unsigned char *)(GEMINI_LEDBASE + (led<<3)) = 0;
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}
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static inline int gemini_led_val(int led)
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{
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int val = 0;
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if (led >= 0 && led < GEMINI_LEDS)
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val = *(unsigned char *)(GEMINI_LEDBASE + (led<<3));
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return (val & 0x1);
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}
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/* returns processor id from the board */
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static inline int gemini_processor(void)
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{
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unsigned char cpu = *(unsigned char *)(GEMINI_CPUSTAT);
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return (int) ((cpu == 0) ? 4 : (cpu & GEMINI_CPU_ID_MASK));
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}
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extern void _gemini_reboot(void);
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extern void gemini_prom_init(void);
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extern void gemini_init_l2(void);
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#endif /* __ASSEMBLY__ */
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#endif
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#endif /* __KERNEL__ */
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