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-rw-r--r--arch/mips/alchemy/devboards/pb1000/board_setup.c209
1 files changed, 0 insertions, 209 deletions
diff --git a/arch/mips/alchemy/devboards/pb1000/board_setup.c b/arch/mips/alchemy/devboards/pb1000/board_setup.c
deleted file mode 100644
index e64fdcbf75d0..000000000000
--- a/arch/mips/alchemy/devboards/pb1000/board_setup.c
+++ /dev/null
@@ -1,209 +0,0 @@
1/*
2 * Copyright 2000, 2008 MontaVista Software Inc.
3 * Author: MontaVista Software, Inc. <source@mvista.com>
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version.
9 *
10 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
11 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
13 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
14 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
15 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
16 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
17 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
18 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
19 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
20 *
21 * You should have received a copy of the GNU General Public License along
22 * with this program; if not, write to the Free Software Foundation, Inc.,
23 * 675 Mass Ave, Cambridge, MA 02139, USA.
24 */
25
26#include <linux/delay.h>
27#include <linux/gpio.h>
28#include <linux/init.h>
29#include <linux/interrupt.h>
30#include <linux/pm.h>
31#include <asm/mach-au1x00/au1000.h>
32#include <asm/mach-pb1x00/pb1000.h>
33#include <asm/reboot.h>
34#include <prom.h>
35
36#include "../platform.h"
37
38const char *get_system_type(void)
39{
40 return "Alchemy Pb1000";
41}
42
43static void board_reset(char *c)
44{
45 asm volatile ("jr %0" : : "r" (0xbfc00000));
46}
47
48static void board_power_off(void)
49{
50 while (1)
51 asm volatile (
52 " .set mips32 \n"
53 " wait \n"
54 " .set mips0 \n");
55}
56
57void __init board_setup(void)
58{
59 u32 pin_func, static_cfg0;
60 u32 sys_freqctrl, sys_clksrc;
61 u32 prid = read_c0_prid();
62
63 sys_freqctrl = 0;
64 sys_clksrc = 0;
65
66 /* Set AUX clock to 12 MHz * 8 = 96 MHz */
67 au_writel(8, SYS_AUXPLL);
68 alchemy_gpio1_input_enable();
69 udelay(100);
70
71#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
72 /* Zero and disable FREQ2 */
73 sys_freqctrl = au_readl(SYS_FREQCTRL0);
74 sys_freqctrl &= ~0xFFF00000;
75 au_writel(sys_freqctrl, SYS_FREQCTRL0);
76
77 /* Zero and disable USBH/USBD clocks */
78 sys_clksrc = au_readl(SYS_CLKSRC);
79 sys_clksrc &= ~(SYS_CS_CUD | SYS_CS_DUD | SYS_CS_MUD_MASK |
80 SYS_CS_CUH | SYS_CS_DUH | SYS_CS_MUH_MASK);
81 au_writel(sys_clksrc, SYS_CLKSRC);
82
83 sys_freqctrl = au_readl(SYS_FREQCTRL0);
84 sys_freqctrl &= ~0xFFF00000;
85
86 sys_clksrc = au_readl(SYS_CLKSRC);
87 sys_clksrc &= ~(SYS_CS_CUD | SYS_CS_DUD | SYS_CS_MUD_MASK |
88 SYS_CS_CUH | SYS_CS_DUH | SYS_CS_MUH_MASK);
89
90 switch (prid & 0x000000FF) {
91 case 0x00: /* DA */
92 case 0x01: /* HA */
93 case 0x02: /* HB */
94 /* CPU core freq to 48 MHz to slow it way down... */
95 au_writel(4, SYS_CPUPLL);
96
97 /*
98 * Setup 48 MHz FREQ2 from CPUPLL for USB Host
99 * FRDIV2 = 3 -> div by 8 of 384 MHz -> 48 MHz
100 */
101 sys_freqctrl |= (3 << SYS_FC_FRDIV2_BIT) | SYS_FC_FE2;
102 au_writel(sys_freqctrl, SYS_FREQCTRL0);
103
104 /* CPU core freq to 384 MHz */
105 au_writel(0x20, SYS_CPUPLL);
106
107 printk(KERN_INFO "Au1000: 48 MHz OHCI workaround enabled\n");
108 break;
109
110 default: /* HC and newer */
111 /* FREQ2 = aux / 2 = 48 MHz */
112 sys_freqctrl |= (0 << SYS_FC_FRDIV2_BIT) |
113 SYS_FC_FE2 | SYS_FC_FS2;
114 au_writel(sys_freqctrl, SYS_FREQCTRL0);
115 break;
116 }
117
118 /*
119 * Route 48 MHz FREQ2 into USB Host and/or Device
120 */
121 sys_clksrc |= SYS_CS_MUX_FQ2 << SYS_CS_MUH_BIT;
122 au_writel(sys_clksrc, SYS_CLKSRC);
123
124 /* Configure pins GPIO[14:9] as GPIO */
125 pin_func = au_readl(SYS_PINFUNC) & ~(SYS_PF_UR3 | SYS_PF_USB);
126
127 /* 2nd USB port is USB host */
128 pin_func |= SYS_PF_USB;
129
130 au_writel(pin_func, SYS_PINFUNC);
131
132 alchemy_gpio_direction_input(11);
133 alchemy_gpio_direction_input(13);
134 alchemy_gpio_direction_output(4, 0);
135 alchemy_gpio_direction_output(5, 0);
136#endif /* defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) */
137
138 /* Make GPIO 15 an input (for interrupt line) */
139 pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_IRF;
140 /* We don't need I2S, so make it available for GPIO[31:29] */
141 pin_func |= SYS_PF_I2S;
142 au_writel(pin_func, SYS_PINFUNC);
143
144 alchemy_gpio_direction_input(15);
145
146 static_cfg0 = au_readl(MEM_STCFG0) & ~0xc00;
147 au_writel(static_cfg0, MEM_STCFG0);
148
149 /* configure RCE2* for LCD */
150 au_writel(0x00000004, MEM_STCFG2);
151
152 /* MEM_STTIME2 */
153 au_writel(0x09000000, MEM_STTIME2);
154
155 /* Set 32-bit base address decoding for RCE2* */
156 au_writel(0x10003ff0, MEM_STADDR2);
157
158 /*
159 * PCI CPLD setup
160 * Expand CE0 to cover PCI
161 */
162 au_writel(0x11803e40, MEM_STADDR1);
163
164 /* Burst visibility on */
165 au_writel(au_readl(MEM_STCFG0) | 0x1000, MEM_STCFG0);
166
167 au_writel(0x83, MEM_STCFG1); /* ewait enabled, flash timing */
168 au_writel(0x33030a10, MEM_STTIME1); /* slower timing for FPGA */
169
170 /* Setup the static bus controller */
171 au_writel(0x00000002, MEM_STCFG3); /* type = PCMCIA */
172 au_writel(0x280E3D07, MEM_STTIME3); /* 250ns cycle time */
173 au_writel(0x10000000, MEM_STADDR3); /* any PCMCIA select */
174
175 /*
176 * Enable Au1000 BCLK switching - note: sed1356 must not use
177 * its BCLK (Au1000 LCLK) for any timings
178 */
179 switch (prid & 0x000000FF) {
180 case 0x00: /* DA */
181 case 0x01: /* HA */
182 case 0x02: /* HB */
183 break;
184 default: /* HC and newer */
185 /*
186 * Enable sys bus clock divider when IDLE state or no bus
187 * activity.
188 */
189 au_writel(au_readl(SYS_POWERCTRL) | (0x3 << 5), SYS_POWERCTRL);
190 break;
191 }
192
193 pm_power_off = board_power_off;
194 _machine_halt = board_power_off;
195 _machine_restart = board_reset;
196}
197
198static int __init pb1000_init_irq(void)
199{
200 irq_set_irq_type(AU1000_GPIO15_INT, IRQF_TRIGGER_LOW);
201 return 0;
202}
203arch_initcall(pb1000_init_irq);
204
205static int __init pb1000_device_init(void)
206{
207 return db1x_register_norflash(8 * 1024 * 1024, 4, 0);
208}
209device_initcall(pb1000_device_init);
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-29 05:39:07 -0500