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
at91sam9261bus_init(struct at91bus_clocks * clocks)40 void at91sam9261bus_init(struct at91bus_clocks *clocks)
41 {
42 pmap_devmap_register(at91_devmap());
43 at91pmc_get_clocks(clocks);
44 }
45
at91sam9261bus_devmap(void)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
at91sam9261bus_peripheral_clock(int pid,int enable)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
at91sam9261bus_pio_port(int pid)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
at91sam9261bus_gpio_mask(int pid)84 uint32_t at91sam9261bus_gpio_mask(int pid)
85 {
86 return 0xFFFFFFFFUL;
87 }
88
at91sam9261bus_peripheral_name(int pid)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
at91sam9261bus_search_peripherals(device_t self,device_t (* found_func)(device_t,bus_addr_t,int))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