2 * Copyright (c) 2010 Adrian Chadd
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
34 #include <sys/kernel.h>
35 #include <sys/systm.h>
39 #include <sys/reboot.h>
42 #include <vm/vm_page.h>
44 #include <net/ethernet.h>
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>
54 #include <mips/atheros/ar71xxreg.h>
55 #include <mips/atheros/ar724xreg.h>
57 #include <mips/atheros/ar71xx_cpudef.h>
58 #include <mips/atheros/ar71xx_setup.h>
59 #include <mips/atheros/ar71xx_chip.h>
60 #include <mips/atheros/ar724x_chip.h>
63 ar724x_chip_detect_mem_size(void)
68 ar724x_chip_detect_sys_frequency(void)
74 u_ar71xx_mdio_freq = u_ar71xx_refclk = AR724X_BASE_FREQ;
76 pll = ATH_READ_REG(AR724X_PLL_REG_CPU_CONFIG);
78 div = ((pll >> AR724X_PLL_DIV_SHIFT) & AR724X_PLL_DIV_MASK);
79 freq = div * AR724X_BASE_FREQ;
81 div = ((pll >> AR724X_PLL_REF_DIV_SHIFT) & AR724X_PLL_REF_DIV_MASK);
84 u_ar71xx_cpu_freq = freq;
86 div = ((pll >> AR724X_DDR_DIV_SHIFT) & AR724X_DDR_DIV_MASK) + 1;
87 u_ar71xx_ddr_freq = freq / div;
89 div = (((pll >> AR724X_AHB_DIV_SHIFT) & AR724X_AHB_DIV_MASK) + 1) * 2;
90 u_ar71xx_ahb_freq = u_ar71xx_cpu_freq / div;
91 u_ar71xx_wdt_freq = u_ar71xx_cpu_freq / div;
92 u_ar71xx_uart_freq = u_ar71xx_cpu_freq / div;
96 ar724x_chip_device_stop(uint32_t mask)
98 uint32_t mask_inv, reg;
100 mask_inv = mask & AR724X_RESET_MODULE_USB_OHCI_DLL;
101 reg = ATH_READ_REG(AR724X_RESET_REG_RESET_MODULE);
104 ATH_WRITE_REG(AR724X_RESET_REG_RESET_MODULE, reg);
108 ar724x_chip_device_start(uint32_t mask)
110 uint32_t mask_inv, reg;
112 mask_inv = mask & AR724X_RESET_MODULE_USB_OHCI_DLL;
113 reg = ATH_READ_REG(AR724X_RESET_REG_RESET_MODULE);
116 ATH_WRITE_REG(AR724X_RESET_REG_RESET_MODULE, reg);
120 ar724x_chip_device_stopped(uint32_t mask)
124 reg = ATH_READ_REG(AR724X_RESET_REG_RESET_MODULE);
125 return ((reg & mask) == mask);
129 ar724x_chip_set_mii_speed(uint32_t unit, uint32_t speed)
137 * XXX TODO: set the PLL for arge0 only on AR7242.
138 * The PLL/clock requirements are different.
140 * Otherwise, it's a NULL function for AR7240, AR7241 and
144 ar724x_chip_set_pll_ge(int unit, int speed, uint32_t pll)
155 printf("%s: invalid PLL set for arge unit: %d\n",
162 ar724x_chip_ddr_flush(ar71xx_flush_ddr_id_t id)
166 case AR71XX_CPU_DDR_FLUSH_GE0:
167 ar71xx_ddr_flush(AR724X_DDR_REG_FLUSH_GE0);
169 case AR71XX_CPU_DDR_FLUSH_GE1:
170 ar71xx_ddr_flush(AR724X_DDR_REG_FLUSH_GE1);
172 case AR71XX_CPU_DDR_FLUSH_USB:
173 ar71xx_ddr_flush(AR724X_DDR_REG_FLUSH_USB);
175 case AR71XX_CPU_DDR_FLUSH_PCIE:
176 ar71xx_ddr_flush(AR724X_DDR_REG_FLUSH_PCIE);
179 printf("%s: invalid DDR flush id (%d)\n", __func__, id);
185 ar724x_chip_get_eth_pll(unsigned int mac, int speed)
192 ar724x_chip_init_usb_peripheral(void)
195 switch (ar71xx_soc) {
196 case AR71XX_SOC_AR7240:
197 ar71xx_device_stop(AR724X_RESET_MODULE_USB_OHCI_DLL |
198 AR724X_RESET_USB_HOST);
201 ar71xx_device_start(AR724X_RESET_MODULE_USB_OHCI_DLL |
202 AR724X_RESET_USB_HOST);
206 * WAR for HW bug. Here it adjusts the duration
209 ATH_WRITE_REG(AR71XX_USB_CTRL_FLADJ,
210 (3 << USB_CTRL_FLADJ_A0_SHIFT));
214 case AR71XX_SOC_AR7241:
215 case AR71XX_SOC_AR7242:
216 ar71xx_device_start(AR724X_RESET_MODULE_USB_OHCI_DLL);
219 ar71xx_device_start(AR724X_RESET_USB_HOST);
222 ar71xx_device_start(AR724X_RESET_USB_PHY);
232 struct ar71xx_cpu_def ar724x_chip_def = {
233 &ar724x_chip_detect_mem_size,
234 &ar724x_chip_detect_sys_frequency,
235 &ar724x_chip_device_stop,
236 &ar724x_chip_device_start,
237 &ar724x_chip_device_stopped,
238 &ar724x_chip_set_pll_ge,
239 &ar724x_chip_set_mii_speed,
240 &ar71xx_chip_set_mii_if,
241 &ar724x_chip_get_eth_pll,
242 &ar724x_chip_ddr_flush,
243 &ar724x_chip_init_usb_peripheral