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
at91sam9260bus_init(struct at91bus_clocks * clocks)44 void at91sam9260bus_init(struct at91bus_clocks *clocks) {
45 pmap_devmap_register(at91_devmap());
46 at91pmc_get_clocks(clocks);
47 }
48
at91sam9260bus_devmap(void)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
at91sam9260bus_peripheral_clock(int pid,int enable)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
at91sam9260bus_pio_port(int pid)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
at91sam9260bus_gpio_mask(int pid)89 uint32_t at91sam9260bus_gpio_mask(int pid) {
90 return 0xFFFFFFFFUL;
91 }
92
at91sam9260bus_peripheral_name(int pid)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
at91sam9260bus_search_peripherals(device_t self,device_t found_func (device_t,bus_addr_t,int))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