3 * BRIEF MODULE DESCRIPTION
4 * Alchemy Pb1200/Db1200 board setup.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
11 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
12 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
14 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
15 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
16 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
17 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
18 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
19 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
20 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
22 * You should have received a copy of the GNU General Public License along
23 * with this program; if not, write to the Free Software Foundation, Inc.,
24 * 675 Mass Ave, Cambridge, MA 02139, USA.
27 #include <linux/init.h>
28 #include <linux/sched.h>
33 #ifdef CONFIG_MIPS_PB1200
34 #include <asm/mach-pb1x00/pb1200.h>
37 #ifdef CONFIG_MIPS_DB1200
38 #include <asm/mach-db1x00/db1200.h>
41 extern void _board_init_irq(void);
42 extern void (*board_init_irq)(void);
44 void board_reset(void)
50 void __init board_setup(void)
58 /* Enable PSC1 SYNC for AC97. Normaly done in audio driver,
59 * but it is board specific code, so put it here.
61 pin_func = au_readl(SYS_PINFUNC);
63 pin_func |= SYS_PF_MUST_BE_SET | SYS_PF_PSC1_S1;
64 au_writel(pin_func, SYS_PINFUNC);
66 au_writel(0, (u32)bcsr|0x10); /* turn off pcmcia power */
71 #if defined(CONFIG_I2C_AU1550)
76 /* Select SMBUS in CPLD */
77 bcsr->resets &= ~(BCSR_RESETS_PCS0MUX);
79 pin_func = au_readl(SYS_PINFUNC);
81 pin_func &= ~(3<<17 | 1<<4);
82 /* Set GPIOs correctly */
84 au_writel(pin_func, SYS_PINFUNC);
87 /* The i2c driver depends on 50Mhz clock */
88 freq0 = au_readl(SYS_FREQCTRL0);
90 freq0 &= ~(SYS_FC_FRDIV1_MASK | SYS_FC_FS1 | SYS_FC_FE1);
91 freq0 |= (3<<SYS_FC_FRDIV1_BIT);
92 /* 396Mhz / (3+1)*2 == 49.5Mhz */
93 au_writel(freq0, SYS_FREQCTRL0);
96 au_writel(freq0, SYS_FREQCTRL0);
99 clksrc = au_readl(SYS_CLKSRC);
101 clksrc &= ~0x01f00000;
102 /* bit 22 is EXTCLK0 for PSC0 */
103 clksrc |= (0x3 << 22);
104 au_writel(clksrc, SYS_CLKSRC);
109 #ifdef CONFIG_FB_AU1200
110 argptr = prom_getcmdline();
111 #ifdef CONFIG_MIPS_PB1200
112 strcat(argptr, " video=au1200fb:panel:bs");
114 #ifdef CONFIG_MIPS_DB1200
115 strcat(argptr, " video=au1200fb:panel:bs");
119 /* The Pb1200 development board uses external MUX for PSC0 to
120 support SMB/SPI. bcsr->resets bit 12: 0=SMB 1=SPI
122 #ifdef CONFIG_I2C_AU1550
123 bcsr->resets &= (~BCSR_RESETS_PCS0MUX);
127 #ifdef CONFIG_MIPS_PB1200
128 printk("AMD Alchemy Pb1200 Board\n");
130 #ifdef CONFIG_MIPS_DB1200
131 printk("AMD Alchemy Db1200 Board\n");
134 /* Setup Pb1200 External Interrupt Controller */
135 board_init_irq = _board_init_irq;
139 board_au1200fb_panel(void)
141 BCSR *bcsr = (BCSR *)BCSR_KSEG1_ADDR;
151 board_au1200fb_panel_init(void)
154 BCSR *bcsr = (BCSR *)BCSR_KSEG1_ADDR;
155 bcsr->board |= (BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD | BCSR_BOARD_LCDBL);
156 /*printk("board_au1200fb_panel_init()\n"); */
161 board_au1200fb_panel_shutdown(void)
164 BCSR *bcsr = (BCSR *)BCSR_KSEG1_ADDR;
165 bcsr->board &= ~(BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD | BCSR_BOARD_LCDBL);
166 /*printk("board_au1200fb_panel_shutdown()\n"); */