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