1 /* $Id: at91rm9200bus.c,v 1.2 2008/07/03 01:15:38 matt Exp $ */ 2 3 #include <sys/cdefs.h> 4 __KERNEL_RCSID(0, "$NetBSD: at91rm9200bus.c,v 1.2 2008/07/03 01:15:38 matt 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/at91rm9200busvar.h> 15 16 const struct at91bus_machdep at91rm9200bus = { 17 at91rm9200bus_init, 18 at91rm9200bus_attach_cn, 19 at91rm9200bus_devmap, 20 21 /* clocking support: */ 22 at91rm9200bus_peripheral_clock, 23 24 /* PIO support: */ 25 at91rm9200bus_pio_port, 26 at91rm9200bus_gpio_mask, 27 28 /* interrupt handling support: */ 29 at91rm9200bus_intr_init, 30 at91rm9200bus_intr_establish, 31 at91rm9200bus_intr_disestablish, 32 at91rm9200bus_intr_poll, 33 at91rm9200bus_intr_dispatch, 34 35 /* configuration */ 36 at91rm9200bus_peripheral_name, 37 at91rm9200bus_search_peripherals 38 }; 39 40 void at91rm9200bus_init(struct at91bus_clocks *clocks) 41 { 42 pmap_devmap_register(at91_devmap()); 43 at91pmc_get_clocks(clocks); 44 } 45 46 const struct pmap_devmap *at91rm9200bus_devmap(void) 47 { 48 static const struct pmap_devmap devmap[] = { 49 { 50 AT91RM9200_APB_VBASE, 51 AT91RM9200_APB_HWBASE, 52 AT91RM9200_APB_SIZE, 53 VM_PROT_READ | VM_PROT_WRITE, 54 PTE_NOCACHE 55 }, 56 57 { 58 0, 59 0, 60 0, 61 0, 62 0 63 } 64 }; 65 66 return devmap; 67 } 68 69 void at91rm9200bus_peripheral_clock(int pid, int enable) 70 { 71 switch (pid) { 72 case PID_UHP: 73 if (enable) 74 PMCREG(PMC_SCER) = PMC_SCSR_UHP; 75 else 76 PMCREG(PMC_SCDR) = PMC_SCSR_UHP; 77 break; 78 } 79 at91pmc_peripheral_clock(pid, enable); 80 } 81 82 at91pio_port at91rm9200bus_pio_port(int pid) 83 { 84 switch (pid) { 85 case PID_PIOA: return AT91_PIOA; 86 case PID_PIOB: return AT91_PIOB; 87 case PID_PIOC: return AT91_PIOC; 88 case PID_PIOD: return AT91_PIOD; 89 default: panic("%s: pid %d not valid", __FUNCTION__, pid); 90 } 91 92 } 93 94 uint32_t at91rm9200bus_gpio_mask(int pid) 95 { 96 return 0xFFFFFFFFUL; 97 } 98 99 const char *at91rm9200bus_peripheral_name(int pid) 100 { 101 switch (pid) { 102 case PID_FIQ: return "FIQ"; 103 case PID_SYSIRQ:return "SYS"; 104 case PID_PIOA: return "PIOA"; 105 case PID_PIOB: return "PIOB"; 106 case PID_PIOC: return "PIOC"; 107 case PID_PIOD: return "PIOD"; 108 case PID_US0: return "USART0"; 109 case PID_US1: return "USART1"; 110 case PID_US2: return "USART2"; 111 case PID_US3: return "USART3"; 112 case PID_MCI: return "MCI"; 113 case PID_UDP: return "UDP"; 114 case PID_TWI: return "TWI"; 115 case PID_SPI: return "SPI"; 116 case PID_SSC0: return "SSC0"; 117 case PID_SSC1: return "SSC1"; 118 case PID_SSC2: return "SSC2"; 119 case PID_TC0: return "TC0"; 120 case PID_TC1: return "TC1"; 121 case PID_TC2: return "TC2"; 122 case PID_TC3: return "TC3"; 123 case PID_TC4: return "TC4"; 124 case PID_TC5: return "TC5"; 125 case PID_UHP: return "UHP"; 126 case PID_EMAC: return "EMAC"; 127 case PID_IRQ0: return "IRQ0"; 128 case PID_IRQ1: return "IRQ1"; 129 case PID_IRQ2: return "IRQ2"; 130 case PID_IRQ3: return "IRQ3"; 131 case PID_IRQ4: return "IRQ4"; 132 case PID_IRQ5: return "IRQ5"; 133 case PID_IRQ6: return "IRQ6"; 134 default: panic("%s: invalid pid %d", __FUNCTION__, pid); 135 } 136 } 137 138 void at91rm9200bus_search_peripherals(device_t self, 139 device_t (*found_func)(device_t, bus_addr_t, int)) 140 { 141 static const struct { 142 bus_addr_t addr; 143 int pid; 144 } table[] = { 145 {AT91RM9200_PMC_BASE, -1}, 146 {AT91RM9200_AIC_BASE, -1}, 147 {AT91RM9200_ST_BASE, PID_SYSIRQ}, 148 {AT91RM9200_TC0_BASE, PID_TC0}, 149 {AT91RM9200_TC1_BASE, PID_TC1}, 150 {AT91RM9200_TC2_BASE, PID_TC2}, 151 {AT91RM9200_TC3_BASE, PID_TC3}, 152 {AT91RM9200_TC4_BASE, PID_TC4}, 153 {AT91RM9200_TC5_BASE, PID_TC5}, 154 {AT91RM9200_DBGU_BASE, PID_SYSIRQ}, 155 {AT91RM9200_PIOA_BASE, PID_PIOA}, 156 {AT91RM9200_PIOB_BASE, PID_PIOB}, 157 {AT91RM9200_PIOC_BASE, PID_PIOC}, 158 {AT91RM9200_PIOD_BASE, PID_PIOD}, 159 {AT91RM9200_USART0_BASE, PID_US0}, 160 {AT91RM9200_USART1_BASE, PID_US1}, 161 {AT91RM9200_USART2_BASE, PID_US2}, 162 {AT91RM9200_USART3_BASE, PID_US3}, 163 {AT91RM9200_SSC0_BASE, PID_SSC0}, 164 {AT91RM9200_SSC1_BASE, PID_SSC1}, 165 {AT91RM9200_SSC2_BASE, PID_SSC2}, 166 {AT91RM9200_TWI_BASE, PID_TWI}, 167 {AT91RM9200_SPI_BASE, PID_SPI}, 168 {AT91RM9200_EMAC_BASE, PID_EMAC}, 169 {AT91RM9200_UHP_BASE, PID_UHP}, 170 {AT91RM9200_UDP_BASE, PID_UDP}, 171 {AT91RM9200_MCI_BASE, PID_MCI}, 172 {AT91RM9200_RTC_BASE, PID_SYSIRQ}, 173 {0, 0} 174 }; 175 int i; 176 177 for (i = 0; table[i].addr; i++) 178 (*found_func)(self, table[i].addr, table[i].pid); 179 } 180 181