1 /* $Id: at91rm9200bus.c,v 1.4 2023/04/21 15:04:47 skrll Exp $ */
2
3 #include <sys/cdefs.h>
4 __KERNEL_RCSID(0, "$NetBSD: at91rm9200bus.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/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
at91rm9200bus_init(struct at91bus_clocks * clocks)40 void at91rm9200bus_init(struct at91bus_clocks *clocks)
41 {
42 pmap_devmap_register(at91_devmap());
43 at91pmc_get_clocks(clocks);
44 }
45
at91rm9200bus_devmap(void)46 const struct pmap_devmap *at91rm9200bus_devmap(void)
47 {
48 static const struct pmap_devmap devmap[] = {
49 DEVMAP_ENTRY(
50 AT91RM9200_APB_VBASE,
51 AT91RM9200_APB_HWBASE,
52 AT91RM9200_APB_SIZE
53 ),
54 DEVMAP_ENTRY_END
55 };
56
57 return devmap;
58 }
59
at91rm9200bus_peripheral_clock(int pid,int enable)60 void at91rm9200bus_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
at91rm9200bus_pio_port(int pid)73 at91pio_port at91rm9200bus_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 case PID_PIOD: return AT91_PIOD;
80 default: panic("%s: pid %d not valid", __FUNCTION__, pid);
81 }
82
83 }
84
at91rm9200bus_gpio_mask(int pid)85 uint32_t at91rm9200bus_gpio_mask(int pid)
86 {
87 return 0xFFFFFFFFUL;
88 }
89
at91rm9200bus_peripheral_name(int pid)90 const char *at91rm9200bus_peripheral_name(int pid)
91 {
92 switch (pid) {
93 case PID_FIQ: return "FIQ";
94 case PID_SYSIRQ:return "SYS";
95 case PID_PIOA: return "PIOA";
96 case PID_PIOB: return "PIOB";
97 case PID_PIOC: return "PIOC";
98 case PID_PIOD: return "PIOD";
99 case PID_US0: return "USART0";
100 case PID_US1: return "USART1";
101 case PID_US2: return "USART2";
102 case PID_US3: return "USART3";
103 case PID_MCI: return "MCI";
104 case PID_UDP: return "UDP";
105 case PID_TWI: return "TWI";
106 case PID_SPI: return "SPI";
107 case PID_SSC0: return "SSC0";
108 case PID_SSC1: return "SSC1";
109 case PID_SSC2: return "SSC2";
110 case PID_TC0: return "TC0";
111 case PID_TC1: return "TC1";
112 case PID_TC2: return "TC2";
113 case PID_TC3: return "TC3";
114 case PID_TC4: return "TC4";
115 case PID_TC5: return "TC5";
116 case PID_UHP: return "UHP";
117 case PID_EMAC: return "EMAC";
118 case PID_IRQ0: return "IRQ0";
119 case PID_IRQ1: return "IRQ1";
120 case PID_IRQ2: return "IRQ2";
121 case PID_IRQ3: return "IRQ3";
122 case PID_IRQ4: return "IRQ4";
123 case PID_IRQ5: return "IRQ5";
124 case PID_IRQ6: return "IRQ6";
125 default: panic("%s: invalid pid %d", __FUNCTION__, pid);
126 }
127 }
128
at91rm9200bus_search_peripherals(device_t self,device_t (* found_func)(device_t,bus_addr_t,int))129 void at91rm9200bus_search_peripherals(device_t self,
130 device_t (*found_func)(device_t, bus_addr_t, int))
131 {
132 static const struct {
133 bus_addr_t addr;
134 int pid;
135 } table[] = {
136 {AT91RM9200_PMC_BASE, -1},
137 {AT91RM9200_AIC_BASE, -1},
138 {AT91RM9200_ST_BASE, PID_SYSIRQ},
139 {AT91RM9200_TC0_BASE, PID_TC0},
140 {AT91RM9200_TC1_BASE, PID_TC1},
141 {AT91RM9200_TC2_BASE, PID_TC2},
142 {AT91RM9200_TC3_BASE, PID_TC3},
143 {AT91RM9200_TC4_BASE, PID_TC4},
144 {AT91RM9200_TC5_BASE, PID_TC5},
145 {AT91RM9200_DBGU_BASE, PID_SYSIRQ},
146 {AT91RM9200_PIOA_BASE, PID_PIOA},
147 {AT91RM9200_PIOB_BASE, PID_PIOB},
148 {AT91RM9200_PIOC_BASE, PID_PIOC},
149 {AT91RM9200_PIOD_BASE, PID_PIOD},
150 {AT91RM9200_USART0_BASE, PID_US0},
151 {AT91RM9200_USART1_BASE, PID_US1},
152 {AT91RM9200_USART2_BASE, PID_US2},
153 {AT91RM9200_USART3_BASE, PID_US3},
154 {AT91RM9200_SSC0_BASE, PID_SSC0},
155 {AT91RM9200_SSC1_BASE, PID_SSC1},
156 {AT91RM9200_SSC2_BASE, PID_SSC2},
157 {AT91RM9200_TWI_BASE, PID_TWI},
158 {AT91RM9200_SPI_BASE, PID_SPI},
159 {AT91RM9200_EMAC_BASE, PID_EMAC},
160 {AT91RM9200_UHP_BASE, PID_UHP},
161 {AT91RM9200_UDP_BASE, PID_UDP},
162 {AT91RM9200_MCI_BASE, PID_MCI},
163 {AT91RM9200_RTC_BASE, PID_SYSIRQ},
164 {0, 0}
165 };
166 int i;
167
168 for (i = 0; table[i].addr; i++)
169 (*found_func)(self, table[i].addr, table[i].pid);
170 }
171
172