2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2005 Olivier Houchard. All rights reserved.
5 * Copyright (c) 2010 Greg Ansley. All rights reserved.
6 * Copyright (c) 2012 M. Warner Losh.. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
33 #include <sys/param.h>
34 #include <sys/systm.h>
36 #include <sys/kernel.h>
37 #include <sys/malloc.h>
38 #include <sys/module.h>
40 #include <machine/bus.h>
42 #include <arm/at91/at91var.h>
43 #include <arm/at91/at91reg.h>
44 #include <arm/at91/at91soc.h>
45 #include <arm/at91/at91_aicreg.h>
46 #include <arm/at91/at91sam9x5reg.h>
47 #include <arm/at91/at91_pitreg.h>
48 #include <arm/at91/at91_pmcreg.h>
49 #include <arm/at91/at91_pmcvar.h>
50 #include <arm/at91/at91_rstreg.h>
53 * Standard priority levels for the system. 0 is lowest and 7 is highest.
54 * These values are the ones Atmel uses for its Linux port
56 static const int at91_irq_prio[32] =
58 7, /* Advanced Interrupt Controller (FIQ) */
59 7, /* System Peripherals */
60 1, /* Parallel IO Controller A and B */
61 1, /* Parallel IO Controller C and D */
67 6, /* Two-Wire Interface 0 */
68 6, /* Two-Wire Interface 1 */
69 6, /* Two-Wire Interface 2 */
70 0, /* Multimedia Card Interface 0 */
71 5, /* Serial Peripheral Interface 0 */
72 5, /* Serial Peripheral Interface 1 */
75 0, /* Timer Counter 0, 1, 2, 3, 4 and 5 */
76 0, /* Pulse Width Modulation Controller */
77 0, /* ADC Controller */
78 0, /* DMA Controller 0 */
79 0, /* DMA Controller 1 */
80 2, /* USB Host High Speed port */
81 2, /* USB Device High speed port */
82 3, /* Ethernet MAC 0 */
83 3, /* LDC Controller or Image Sensor Interface */
84 0, /* Multimedia Card Interface 1 */
85 3, /* Ethernet MAC 1 */
86 4, /* Synchronous Serial Interface */
87 4, /* CAN Controller 0 */
88 4, /* CAN Controller 1 */
89 0, /* Advanced Interrupt Controller (IRQ0) */
92 static const uint32_t at91_pio_base[] = {
93 AT91SAM9X25_PIOA_BASE,
94 AT91SAM9X25_PIOB_BASE,
95 AT91SAM9X25_PIOC_BASE,
96 AT91SAM9X25_PIOD_BASE,
99 #define DEVICE(_name, _id, _unit) \
102 AT91SAM9X25_ ## _id ##_BASE, \
103 AT91SAM9X25_ ## _id ## _SIZE, \
104 AT91SAM9X25_IRQ_ ## _id \
107 static const struct cpu_devs at91_devs[] =
109 DEVICE("at91_aic", AIC, 0),
110 DEVICE("at91_pmc", PMC, 0),
111 DEVICE("at91_wdt", WDT, 0),
112 DEVICE("at91_rst", RSTC, 0),
113 DEVICE("at91_pit", PIT, 0),
114 DEVICE("at91_pio", PIOA, 0),
115 DEVICE("at91_pio", PIOB, 1),
116 DEVICE("at91_pio", PIOC, 2),
117 DEVICE("at91_pio", PIOD, 3),
118 DEVICE("at91_twi", TWI0, 0),
119 DEVICE("at91_twi", TWI1, 1),
120 DEVICE("at91_twi", TWI2, 2),
121 DEVICE("at91_mci", HSMCI0, 0),
122 DEVICE("at91_mci", HSMCI1, 1),
123 DEVICE("uart", DBGU, 0),
124 DEVICE("uart", USART0, 1),
125 DEVICE("uart", USART1, 2),
126 DEVICE("uart", USART2, 3),
127 DEVICE("uart", USART3, 4),
128 DEVICE("spi", SPI0, 0),
129 DEVICE("spi", SPI1, 1),
130 DEVICE("macb", EMAC0, 0),
131 DEVICE("macb", EMAC1, 0),
132 DEVICE("nand", NAND, 0),
133 DEVICE("ohci", OHCI, 0),
134 DEVICE("ehci", EHCI, 0),
139 at91_clock_init(void)
141 struct at91_pmc_clock *clk;
143 /* Update USB device port clock info */
144 clk = at91_pmc_clock_ref("udpck");
145 clk->pmc_mask = PMC_SCER_UDP_SAM9;
146 at91_pmc_clock_deref(clk);
148 /* Update USB host port clock info */
149 clk = at91_pmc_clock_ref("uhpck");
150 clk->pmc_mask = PMC_SCER_UHP_SAM9;
151 at91_pmc_clock_deref(clk);
153 /* Each SOC has different PLL contraints */
154 clk = at91_pmc_clock_ref("plla");
155 clk->pll_min_in = SAM9X25_PLL_A_MIN_IN_FREQ; /* 2 MHz */
156 clk->pll_max_in = SAM9X25_PLL_A_MAX_IN_FREQ; /* 32 MHz */
157 clk->pll_min_out = SAM9X25_PLL_A_MIN_OUT_FREQ; /* 400 MHz */
158 clk->pll_max_out = SAM9X25_PLL_A_MAX_OUT_FREQ; /* 800 MHz */
159 clk->pll_mul_shift = SAM9X25_PLL_A_MUL_SHIFT;
160 clk->pll_mul_mask = SAM9X25_PLL_A_MUL_MASK;
161 clk->pll_div_shift = SAM9X25_PLL_A_DIV_SHIFT;
162 clk->pll_div_mask = SAM9X25_PLL_A_DIV_MASK;
163 clk->set_outb = at91_pmc_800mhz_plla_outb;
164 at91_pmc_clock_deref(clk);
166 clk = at91_pmc_clock_ref("pllb");
167 clk->pll_min_in = SAM9X25_PLL_B_MIN_IN_FREQ; /* 2 MHz */
168 clk->pll_max_in = SAM9X25_PLL_B_MAX_IN_FREQ; /* 32 MHz */
169 clk->pll_min_out = SAM9X25_PLL_B_MIN_OUT_FREQ; /* 30 MHz */
170 clk->pll_max_out = SAM9X25_PLL_B_MAX_OUT_FREQ; /* 100 MHz */
171 clk->pll_mul_shift = SAM9X25_PLL_B_MUL_SHIFT;
172 clk->pll_mul_mask = SAM9X25_PLL_B_MUL_MASK;
173 clk->pll_div_shift = SAM9X25_PLL_B_DIV_SHIFT;
174 clk->pll_div_mask = SAM9X25_PLL_B_DIV_MASK;
175 clk->set_outb = at91_pmc_800mhz_pllb_outb;
176 at91_pmc_clock_deref(clk);
179 static struct at91_soc_data soc_data = {
180 .soc_delay = at91_pit_delay,
181 .soc_reset = at91_rst_cpu_reset,
182 .soc_clock_init = at91_clock_init,
183 .soc_irq_prio = at91_irq_prio,
184 .soc_children = at91_devs,
185 .soc_pio_base = at91_pio_base,
186 .soc_pio_count = nitems(at91_pio_base),
189 AT91_SOC_SUB(AT91_T_SAM9X5, AT91_ST_SAM9X25, &soc_data);