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      1 /*	$Id: at91sam9261bus.c,v 1.4 2023/04/21 15:04:47 skrll Exp $	*/
      2 
      3 #include <sys/cdefs.h>
      4 __KERNEL_RCSID(0, "$NetBSD: at91sam9261bus.c,v 1.4 2023/04/21 15:04:47 skrll Exp $");
      5 
      6 #include <sys/types.h>
      7 #include <sys/param.h>
      8 #include <sys/systm.h>
      9 #include <sys/kernel.h>
     10 #include <sys/time.h>
     11 #include <sys/device.h>
     12 #include <uvm/uvm_extern.h>
     13 
     14 #include <arm/at91/at91sam9261busvar.h>
     15 
     16 const struct at91bus_machdep at91sam9261bus = {
     17 	at91sam9261bus_init,
     18 	at91sam9261bus_attach_cn,
     19 	at91sam9261bus_devmap,
     20 
     21 	/* clocking support: */
     22 	at91sam9261bus_peripheral_clock,
     23 
     24 	/* PIO support: */
     25 	at91sam9261bus_pio_port,
     26 	at91sam9261bus_gpio_mask,
     27 
     28 	/* interrupt handling support: */
     29 	at91sam9261bus_intr_init,
     30 	at91sam9261bus_intr_establish,
     31 	at91sam9261bus_intr_disestablish,
     32 	at91sam9261bus_intr_poll,
     33 	at91sam9261bus_intr_dispatch,
     34 
     35 	/* configuration */
     36 	at91sam9261bus_peripheral_name,
     37 	at91sam9261bus_search_peripherals
     38 };
     39 
     40 void at91sam9261bus_init(struct at91bus_clocks *clocks)
     41 {
     42 	pmap_devmap_register(at91_devmap());
     43 	at91pmc_get_clocks(clocks);
     44 }
     45 
     46 const struct pmap_devmap *at91sam9261bus_devmap(void)
     47 {
     48 	static const struct pmap_devmap devmap[] = {
     49 	    DEVMAP_ENTRY(
     50 		AT91SAM9261_APB_VBASE,
     51 		AT91SAM9261_APB_HWBASE,
     52 		AT91SAM9261_APB_SIZE
     53 	    ),
     54 	    DEVMAP_ENTRY_END
     55 	};
     56 
     57 	return devmap;
     58 }
     59 
     60 void at91sam9261bus_peripheral_clock(int pid, int enable)
     61 {
     62 	switch (pid) {
     63 	case PID_UHP:
     64 		if (enable)
     65 			PMCREG(PMC_SCER) = PMC_SCSR_UHP;
     66 		else
     67 			PMCREG(PMC_SCDR) = PMC_SCSR_UHP;
     68 		break;
     69 	}
     70 	at91pmc_peripheral_clock(pid, enable);
     71 }
     72 
     73 at91pio_port at91sam9261bus_pio_port(int pid)
     74 {
     75 	switch (pid) {
     76 	case PID_PIOA:	return AT91_PIOA;
     77 	case PID_PIOB:	return AT91_PIOB;
     78 	case PID_PIOC:	return AT91_PIOC;
     79 	default:		panic("%s: pid %d not valid", __FUNCTION__, pid);
     80 	}
     81 
     82 }
     83 
     84 uint32_t at91sam9261bus_gpio_mask(int pid)
     85 {
     86 	return 0xFFFFFFFFUL;
     87 }
     88 
     89 const char *at91sam9261bus_peripheral_name(int pid)
     90 {
     91 	switch (pid) {
     92 	case PID_FIQ:	return "FIQ";
     93 	case PID_SYSIRQ:return "SYS";
     94 	case PID_PIOA:	return "PIOA";
     95 	case PID_PIOB:	return "PIOB";
     96 	case PID_PIOC:	return "PIOC";
     97 	case PID_US0:	return "USART0";
     98 	case PID_US1:	return "USART1";
     99 	case PID_US2:	return "USART2";
    100 	case PID_MCI:	return "MCI";
    101 	case PID_UDP:	return "UDP";
    102 	case PID_TWI:	return "TWI";
    103 	case PID_SPI0:	return "SPI0";
    104 	case PID_SPI1:	return "SPI1";
    105 	case PID_SSC0:	return "SSC0";
    106 	case PID_SSC1:	return "SSC1";
    107 	case PID_SSC2:	return "SSC2";
    108 	case PID_TC0:	return "TC0";
    109 	case PID_TC1:	return "TC1";
    110 	case PID_TC2:	return "TC2";
    111 	case PID_UHP:	return "UHP";
    112 	case PID_LCDC:	return "LCDC";
    113 	case PID_IRQ0:	return "IRQ0";
    114 	case PID_IRQ1:	return "IRQ1";
    115 	case PID_IRQ2:	return "IRQ2";
    116 	default:	panic("%s: invalid pid %d", __FUNCTION__, pid);
    117 	}
    118 }
    119 
    120 void at91sam9261bus_search_peripherals(device_t self,
    121 				       device_t (*found_func)(device_t, bus_addr_t, int))
    122 {
    123 	static const struct {
    124 		bus_addr_t	addr;
    125 		int		pid;
    126 	} table[] = {
    127 		{AT91SAM9261_PMC_BASE,		-1},
    128 		{AT91SAM9261_AIC_BASE,		-1},
    129 		{AT91SAM9261_PIT_BASE,		PID_SYSIRQ},
    130 		{AT91SAM9261_TC0_BASE,		PID_TC0},
    131 		{AT91SAM9261_TC1_BASE,		PID_TC1},
    132 		{AT91SAM9261_TC2_BASE,		PID_TC2},
    133 		{AT91SAM9261_DBGU_BASE,		PID_SYSIRQ},
    134 		{AT91SAM9261_PIOA_BASE,		PID_PIOA},
    135 		{AT91SAM9261_PIOB_BASE,		PID_PIOB},
    136 		{AT91SAM9261_PIOC_BASE,		PID_PIOC},
    137 		{AT91SAM9261_USART0_BASE,	PID_US0},
    138 		{AT91SAM9261_USART1_BASE,	PID_US1},
    139 		{AT91SAM9261_USART2_BASE,	PID_US2},
    140 		{AT91SAM9261_SSC0_BASE,		PID_SSC0},
    141 		{AT91SAM9261_SSC1_BASE,		PID_SSC1},
    142 		{AT91SAM9261_SSC2_BASE,		PID_SSC2},
    143 		{AT91SAM9261_TWI_BASE,		PID_TWI},
    144 		{AT91SAM9261_SPI0_BASE,		PID_SPI0},
    145 		{AT91SAM9261_SPI1_BASE,		PID_SPI1},
    146 		{AT91SAM9261_UHP_BASE,		PID_UHP},
    147 		{AT91SAM9261_LCD_BASE,		PID_LCDC},
    148 		{AT91SAM9261_UDP_BASE,		PID_UDP},
    149 		{AT91SAM9261_MCI_BASE,		PID_MCI},
    150 		{0, 0}
    151 	};
    152 	int i;
    153 
    154 	for (i = 0; table[i].addr; i++)
    155 		(*found_func)(self, table[i].addr, table[i].pid);
    156 }
    157 
    158