1/*-
2 * Copyright (c) 2010 Adrian Chadd
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD$");
29
30#include "opt_ddb.h"
31
32#include <sys/param.h>
33#include <sys/conf.h>
34#include <sys/kernel.h>
35#include <sys/systm.h>
36#include <sys/bus.h>
37#include <sys/cons.h>
38#include <sys/kdb.h>
39#include <sys/reboot.h>
40
41#include <vm/vm.h>
42#include <vm/vm_page.h>
43
44#include <net/ethernet.h>
45
46#include <machine/clock.h>
47#include <machine/cpu.h>
48#include <machine/cpuregs.h>
49#include <machine/hwfunc.h>
50#include <machine/md_var.h>
51#include <machine/trap.h>
52#include <machine/vmparam.h>
53
54#include <mips/atheros/ar71xxreg.h>
55#include <mips/atheros/ar91xxreg.h>
56
57#include <mips/atheros/ar71xx_cpudef.h>
58#include <mips/atheros/ar91xx_chip.h>
59
60#include <mips/sentry5/s5reg.h>
61
62static void
63ar91xx_chip_detect_mem_size(void)
64{
65}
66
67static void
68ar91xx_chip_detect_sys_frequency(void)
69{
70        uint32_t pll;
71        uint32_t freq;
72        uint32_t div;
73
74        pll = ATH_READ_REG(AR91XX_PLL_REG_CPU_CONFIG);
75
76        div = ((pll >> AR91XX_PLL_DIV_SHIFT) & AR91XX_PLL_DIV_MASK);
77        freq = div * AR91XX_BASE_FREQ;
78
79        u_ar71xx_cpu_freq = freq;
80
81        div = ((pll >> AR91XX_DDR_DIV_SHIFT) & AR91XX_DDR_DIV_MASK) + 1;
82        u_ar71xx_ddr_freq = freq / div;
83
84        div = (((pll >> AR91XX_AHB_DIV_SHIFT) & AR91XX_AHB_DIV_MASK) + 1) * 2;
85        u_ar71xx_ahb_freq = u_ar71xx_cpu_freq / div;
86}
87
88static void
89ar91xx_chip_device_stop(uint32_t mask)
90{
91        uint32_t reg;
92
93        reg = ATH_READ_REG(AR91XX_RESET_REG_RESET_MODULE);
94        ATH_WRITE_REG(AR91XX_RESET_REG_RESET_MODULE, reg | mask);
95}
96
97static void
98ar91xx_chip_device_start(uint32_t mask)
99{
100        uint32_t reg;
101
102        reg = ATH_READ_REG(AR91XX_RESET_REG_RESET_MODULE);
103        ATH_WRITE_REG(AR91XX_RESET_REG_RESET_MODULE, reg & ~mask);
104}
105
106static int
107ar91xx_chip_device_stopped(uint32_t mask)
108{
109        uint32_t reg;
110
111        reg = ATH_READ_REG(AR91XX_RESET_REG_RESET_MODULE);
112        return ((reg & mask) == mask);
113}
114
115static void
116ar91xx_chip_set_pll_ge0(int speed)
117{
118	uint32_t pll;
119
120	switch(speed) {
121		case 10:
122			pll = AR91XX_PLL_VAL_10;
123			break;
124		case 100:
125			pll = AR91XX_PLL_VAL_100;
126			break;
127		case 1000:
128			pll = AR91XX_PLL_VAL_1000;
129			break;
130		default:
131			printf("ar91xx_chip_set_pll_ge0: invalid speed %d\n",
132			    speed);
133			return;
134	}
135	ar71xx_write_pll(AR91XX_PLL_REG_ETH_CONFIG,
136	    AR91XX_PLL_REG_ETH0_INT_CLOCK, pll, AR91XX_ETH0_PLL_SHIFT);
137}
138
139static void
140ar91xx_chip_set_pll_ge1(int speed)
141{
142	uint32_t pll;
143
144	switch(speed) {
145		case 10:
146			pll = AR91XX_PLL_VAL_10;
147			break;
148		case 100:
149			pll = AR91XX_PLL_VAL_100;
150			break;
151		case 1000:
152			pll = AR91XX_PLL_VAL_1000;
153			break;
154		default:
155			printf("ar91xx_chip_set_pll_ge0: invalid speed %d\n",
156			    speed);
157			return;
158	}
159	ar71xx_write_pll(AR91XX_PLL_REG_ETH_CONFIG,
160	    AR91XX_PLL_REG_ETH1_INT_CLOCK, pll, AR91XX_ETH1_PLL_SHIFT);
161}
162
163static void
164ar91xx_chip_ddr_flush_ge0(void)
165{
166	ar71xx_ddr_flush(AR91XX_DDR_REG_FLUSH_GE0);
167}
168
169static void
170ar91xx_chip_ddr_flush_ge1(void)
171{
172	ar71xx_ddr_flush(AR91XX_DDR_REG_FLUSH_GE1);
173}
174
175static void
176ar91xx_chip_ddr_flush_ip2(void)
177{
178	ar71xx_ddr_flush(AR91XX_DDR_REG_FLUSH_WMAC);
179}
180
181
182static uint32_t
183ar91xx_chip_get_eth_pll(unsigned int mac, int speed)
184{
185        return 0;
186}
187
188static void
189ar91xx_chip_init_usb_peripheral(void)
190{
191	ar71xx_device_stop(AR91XX_RST_RESET_MODULE_USBSUS_OVERRIDE);
192	DELAY(100);
193
194	ar71xx_device_start(RST_RESET_USB_HOST);
195	DELAY(100);
196
197	ar71xx_device_start(RST_RESET_USB_PHY);
198	DELAY(100);
199
200	/* Wireless */
201	ar71xx_device_stop(AR91XX_RST_RESET_MODULE_AMBA2WMAC);
202	DELAY(1000);
203
204	ar71xx_device_start(AR91XX_RST_RESET_MODULE_AMBA2WMAC);
205	DELAY(1000);
206}
207
208struct ar71xx_cpu_def ar91xx_chip_def = {
209        &ar91xx_chip_detect_mem_size,
210        &ar91xx_chip_detect_sys_frequency,
211        &ar91xx_chip_device_stop,
212        &ar91xx_chip_device_start,
213        &ar91xx_chip_device_stopped,
214        &ar91xx_chip_set_pll_ge0,
215        &ar91xx_chip_set_pll_ge1,
216        &ar91xx_chip_ddr_flush_ge0,
217        &ar91xx_chip_ddr_flush_ge1,
218        &ar91xx_chip_get_eth_pll,
219        &ar91xx_chip_ddr_flush_ip2,
220	&ar91xx_chip_init_usb_peripheral,
221};
222