2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2010 Adrian Chadd
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
34 #include <sys/param.h>
36 #include <sys/kernel.h>
37 #include <sys/systm.h>
41 #include <sys/reboot.h>
44 #include <vm/vm_page.h>
46 #include <net/ethernet.h>
48 #include <machine/clock.h>
49 #include <machine/cpu.h>
50 #include <machine/cpuregs.h>
51 #include <machine/hwfunc.h>
52 #include <machine/md_var.h>
53 #include <machine/trap.h>
54 #include <machine/vmparam.h>
56 #include <mips/atheros/ar71xxreg.h>
57 #include <mips/atheros/ar724xreg.h>
59 #include <mips/atheros/ar71xx_cpudef.h>
60 #include <mips/atheros/ar71xx_setup.h>
61 #include <mips/atheros/ar71xx_chip.h>
62 #include <mips/atheros/ar724x_chip.h>
65 ar724x_chip_detect_mem_size(void)
70 ar724x_chip_detect_sys_frequency(void)
76 u_ar71xx_mdio_freq = u_ar71xx_refclk = AR724X_BASE_FREQ;
78 pll = ATH_READ_REG(AR724X_PLL_REG_CPU_CONFIG);
80 div = ((pll >> AR724X_PLL_DIV_SHIFT) & AR724X_PLL_DIV_MASK);
81 freq = div * AR724X_BASE_FREQ;
83 div = ((pll >> AR724X_PLL_REF_DIV_SHIFT) & AR724X_PLL_REF_DIV_MASK);
86 u_ar71xx_cpu_freq = freq;
88 div = ((pll >> AR724X_DDR_DIV_SHIFT) & AR724X_DDR_DIV_MASK) + 1;
89 u_ar71xx_ddr_freq = freq / div;
91 div = (((pll >> AR724X_AHB_DIV_SHIFT) & AR724X_AHB_DIV_MASK) + 1) * 2;
92 u_ar71xx_ahb_freq = u_ar71xx_cpu_freq / div;
93 u_ar71xx_wdt_freq = u_ar71xx_cpu_freq / div;
94 u_ar71xx_uart_freq = u_ar71xx_cpu_freq / div;
98 ar724x_chip_device_stop(uint32_t mask)
100 uint32_t mask_inv, reg;
102 mask_inv = mask & AR724X_RESET_MODULE_USB_OHCI_DLL;
103 reg = ATH_READ_REG(AR724X_RESET_REG_RESET_MODULE);
106 ATH_WRITE_REG(AR724X_RESET_REG_RESET_MODULE, reg);
110 ar724x_chip_device_start(uint32_t mask)
112 uint32_t mask_inv, reg;
114 mask_inv = mask & AR724X_RESET_MODULE_USB_OHCI_DLL;
115 reg = ATH_READ_REG(AR724X_RESET_REG_RESET_MODULE);
118 ATH_WRITE_REG(AR724X_RESET_REG_RESET_MODULE, reg);
122 ar724x_chip_device_stopped(uint32_t mask)
126 reg = ATH_READ_REG(AR724X_RESET_REG_RESET_MODULE);
127 return ((reg & mask) == mask);
131 ar724x_chip_set_mii_speed(uint32_t unit, uint32_t speed)
139 * XXX TODO: set the PLL for arge0 only on AR7242.
140 * The PLL/clock requirements are different.
142 * Otherwise, it's a NULL function for AR7240, AR7241 and
146 ar724x_chip_set_pll_ge(int unit, int speed, uint32_t pll)
157 printf("%s: invalid PLL set for arge unit: %d\n",
164 ar724x_chip_ddr_flush(ar71xx_flush_ddr_id_t id)
168 case AR71XX_CPU_DDR_FLUSH_GE0:
169 ar71xx_ddr_flush(AR724X_DDR_REG_FLUSH_GE0);
171 case AR71XX_CPU_DDR_FLUSH_GE1:
172 ar71xx_ddr_flush(AR724X_DDR_REG_FLUSH_GE1);
174 case AR71XX_CPU_DDR_FLUSH_USB:
175 ar71xx_ddr_flush(AR724X_DDR_REG_FLUSH_USB);
177 case AR71XX_CPU_DDR_FLUSH_PCIE:
178 ar71xx_ddr_flush(AR724X_DDR_REG_FLUSH_PCIE);
181 printf("%s: invalid DDR flush id (%d)\n", __func__, id);
187 ar724x_chip_get_eth_pll(unsigned int mac, int speed)
194 ar724x_chip_init_usb_peripheral(void)
197 switch (ar71xx_soc) {
198 case AR71XX_SOC_AR7240:
199 ar71xx_device_stop(AR724X_RESET_MODULE_USB_OHCI_DLL |
200 AR724X_RESET_USB_HOST);
203 ar71xx_device_start(AR724X_RESET_MODULE_USB_OHCI_DLL |
204 AR724X_RESET_USB_HOST);
208 * WAR for HW bug. Here it adjusts the duration
211 ATH_WRITE_REG(AR71XX_USB_CTRL_FLADJ,
212 (3 << USB_CTRL_FLADJ_A0_SHIFT));
216 case AR71XX_SOC_AR7241:
217 case AR71XX_SOC_AR7242:
218 ar71xx_device_start(AR724X_RESET_MODULE_USB_OHCI_DLL);
221 ar71xx_device_start(AR724X_RESET_USB_HOST);
224 ar71xx_device_start(AR724X_RESET_USB_PHY);
234 struct ar71xx_cpu_def ar724x_chip_def = {
235 &ar724x_chip_detect_mem_size,
236 &ar724x_chip_detect_sys_frequency,
237 &ar724x_chip_device_stop,
238 &ar724x_chip_device_start,
239 &ar724x_chip_device_stopped,
240 &ar724x_chip_set_pll_ge,
241 &ar724x_chip_set_mii_speed,
242 &ar71xx_chip_set_mii_if,
243 &ar724x_chip_get_eth_pll,
244 &ar724x_chip_ddr_flush,
245 &ar724x_chip_init_usb_peripheral