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      1 /*	$NetBSD: at91sam9260bus.c,v 1.2 2023/04/21 15:00:48 skrll Exp $	*/
      2 /*
      3  * Copied from at91sam9261bus.c
      4  * Adaptation to AT91SAM9260 by Aymeric Vincent is in the public domain.
      5  */
      6 
      7 #include <sys/cdefs.h>
      8 __KERNEL_RCSID(0, "$NetBSD: at91sam9260bus.c,v 1.2 2023/04/21 15:00:48 skrll Exp $");
      9 
     10 #include <sys/types.h>
     11 #include <sys/param.h>
     12 #include <sys/systm.h>
     13 #include <sys/kernel.h>
     14 #include <sys/time.h>
     15 #include <sys/device.h>
     16 #include <uvm/uvm_extern.h>
     17 
     18 #include <arm/at91/at91sam9260busvar.h>
     19 
     20 const struct at91bus_machdep at91sam9260bus = {
     21 	at91sam9260bus_init,
     22 	at91sam9260bus_attach_cn,
     23 	at91sam9260bus_devmap,
     24 
     25 	/* clocking support: */
     26 	at91sam9260bus_peripheral_clock,
     27 
     28 	/* PIO support: */
     29 	at91sam9260bus_pio_port,
     30 	at91sam9260bus_gpio_mask,
     31 
     32 	/* interrupt handling support: */
     33 	at91sam9260bus_intr_init,
     34 	at91sam9260bus_intr_establish,
     35 	at91sam9260bus_intr_disestablish,
     36 	at91sam9260bus_intr_poll,
     37 	at91sam9260bus_intr_dispatch,
     38 
     39 	/* configuration */
     40 	at91sam9260bus_peripheral_name,
     41 	at91sam9260bus_search_peripherals
     42 };
     43 
     44 void at91sam9260bus_init(struct at91bus_clocks *clocks) {
     45 	pmap_devmap_register(at91_devmap());
     46 	at91pmc_get_clocks(clocks);
     47 }
     48 
     49 const struct pmap_devmap *at91sam9260bus_devmap(void) {
     50 	static const struct pmap_devmap devmap[] = {
     51 	    {
     52 		AT91SAM9260_APB_VBASE,
     53 		AT91SAM9260_APB_HWBASE,
     54 		AT91SAM9260_APB_SIZE,
     55 		VM_PROT_READ | VM_PROT_WRITE,
     56 		PTE_NOCACHE
     57 	    },
     58 
     59 	    {
     60 		0, 0, 0, 0, 0
     61 	    }
     62 	};
     63 
     64 	return devmap;
     65 }
     66 
     67 void at91sam9260bus_peripheral_clock(int pid, int enable) {
     68 	switch (pid) {
     69 	case PID_UHP:
     70 		if (enable)
     71 			PMCREG(PMC_SCER) = PMC_SCSR_SAM_UHP;
     72 		else
     73 			PMCREG(PMC_SCDR) = PMC_SCSR_SAM_UHP;
     74 		break;
     75 	}
     76 	at91pmc_peripheral_clock(pid, enable);
     77 }
     78 
     79 at91pio_port at91sam9260bus_pio_port(int pid) {
     80 	switch (pid) {
     81 	case PID_PIOA:	return AT91_PIOA;
     82 	case PID_PIOB:	return AT91_PIOB;
     83 	case PID_PIOC:	return AT91_PIOC;
     84 	default:	panic("%s: pid %d not valid", __FUNCTION__, pid);
     85 	}
     86 
     87 }
     88 
     89 uint32_t at91sam9260bus_gpio_mask(int pid) {
     90 	return 0xFFFFFFFFUL;
     91 }
     92 
     93 const char *at91sam9260bus_peripheral_name(int pid) {
     94 	switch (pid) {
     95 	case PID_FIQ:	return "FIQ";
     96 	case PID_SYSIRQ:return "SYS";
     97 	case PID_PIOA:	return "PIOA";
     98 	case PID_PIOB:	return "PIOB";
     99 	case PID_PIOC:	return "PIOC";
    100 	case PID_US0:	return "USART0";
    101 	case PID_US1:	return "USART1";
    102 	case PID_US2:	return "USART2";
    103 	case PID_MCI:	return "MCI";
    104 	case PID_UDP:	return "UDP";
    105 	case PID_TWI:	return "TWI";
    106 	case PID_SPI0:	return "SPI0";
    107 	case PID_SPI1:	return "SPI1";
    108 	case PID_SSC:	return "SSC";
    109 	case PID_TC0:	return "TC0";
    110 	case PID_TC1:	return "TC1";
    111 	case PID_TC2:	return "TC2";
    112 	case PID_UHP:	return "UHP";
    113 	case PID_EMAC:	return "EMAC";
    114 	case PID_US3:	return "USART3";
    115 	case PID_US4:	return "USART4";
    116 	case PID_US5:	return "USART5";
    117 	case PID_TC3:	return "TC3";
    118 	case PID_TC4:	return "TC4";
    119 	case PID_TC5:	return "TC5";
    120 	case PID_IRQ0:	return "IRQ0";
    121 	case PID_IRQ1:	return "IRQ1";
    122 	case PID_IRQ2:	return "IRQ2";
    123 	default:	panic("%s: invalid pid %d", __FUNCTION__, pid);
    124 	}
    125 }
    126 
    127 void at91sam9260bus_search_peripherals(device_t self,
    128 			   device_t found_func(device_t, bus_addr_t, int)) {
    129 	static const struct {
    130 		bus_addr_t	addr;
    131 		int		pid;
    132 	} table[] = {
    133 		{AT91SAM9260_PMC_BASE,		-1},
    134 		{AT91SAM9260_AIC_BASE,		-1},
    135 		{AT91SAM9260_PIT_BASE,		PID_SYSIRQ},
    136 		{AT91SAM9260_TC0_BASE,		PID_TC0},
    137 		{AT91SAM9260_TC1_BASE,		PID_TC1},
    138 		{AT91SAM9260_TC2_BASE,		PID_TC2},
    139 		{AT91SAM9260_DBGU_BASE,		PID_SYSIRQ},
    140 		{AT91SAM9260_PIOA_BASE,		PID_PIOA},
    141 		{AT91SAM9260_PIOB_BASE,		PID_PIOB},
    142 		{AT91SAM9260_PIOC_BASE,		PID_PIOC},
    143 		{AT91SAM9260_USART0_BASE,	PID_US0},
    144 		{AT91SAM9260_USART1_BASE,	PID_US1},
    145 		{AT91SAM9260_USART2_BASE,	PID_US2},
    146 		{AT91SAM9260_SSC_BASE,		PID_SSC},
    147 //		{AT91SAM9260_EMAC_BASE,		PID_EMAC},
    148 		{AT91SAM9260_TWI_BASE,		PID_TWI},
    149 		{AT91SAM9260_SPI0_BASE,		PID_SPI0},
    150 		{AT91SAM9260_SPI1_BASE,		PID_SPI1},
    151 		{AT91SAM9260_UHP_BASE,		PID_UHP},
    152 		{AT91SAM9260_UDP_BASE,		PID_UDP},
    153 		{AT91SAM9260_MCI_BASE,		PID_MCI},
    154 		{0, 0}
    155 	};
    156 	int i;
    157 
    158 	for (i = 0; table[i].addr; i++)
    159 		found_func(self, table[i].addr, table[i].pid);
    160 }
    161 
    162