--- /dev/null
+/*
+ *
+ * BRIEF MODULE DESCRIPTION
+ * Alchemy Pb1200/Db1200 board setup.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/ioport.h>
+#include <linux/mm.h>
+#include <linux/console.h>
+#include <linux/mc146818rtc.h>
+#include <linux/delay.h>
+
+#if defined(CONFIG_BLK_DEV_IDE_AU1XXX)
+#include <linux/ide.h>
+#endif
+
+#include <asm/cpu.h>
+#include <asm/bootinfo.h>
+#include <asm/irq.h>
+#include <asm/mipsregs.h>
+#include <asm/reboot.h>
+#include <asm/pgtable.h>
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/au1xxx_dbdma.h>
+
+#ifdef CONFIG_MIPS_PB1200
+#include <asm/mach-pb1x00/pb1200.h>
+#endif
+
+#ifdef CONFIG_MIPS_DB1200
+#include <asm/mach-db1x00/db1200.h>
+#define PB1200_ETH_INT DB1200_ETH_INT
+#define PB1200_IDE_INT DB1200_IDE_INT
+#endif
+
+extern void _board_init_irq(void);
+extern void (*board_init_irq)(void);
+
+void board_reset (void)
+{
+ bcsr->resets = 0;
+ bcsr->system = 0;
+}
+
+void __init board_setup(void)
+{
+ char *argptr = NULL;
+ u32 pin_func;
+
+#if 0
+ /* Enable PSC1 SYNC for AC97. Normaly done in audio driver,
+ * but it is board specific code, so put it here.
+ */
+ pin_func = au_readl(SYS_PINFUNC);
+ au_sync();
+ pin_func |= SYS_PF_MUST_BE_SET | SYS_PF_PSC1_S1;
+ au_writel(pin_func, SYS_PINFUNC);
+
+ au_writel(0, (u32)bcsr|0x10); /* turn off pcmcia power */
+ au_sync();
+#endif
+
+#if defined(CONFIG_I2C_AU1550)
+ {
+ u32 freq0, clksrc;
+
+ /* Select SMBUS in CPLD */
+ bcsr->resets &= ~(BCSR_RESETS_PCS0MUX);
+
+ pin_func = au_readl(SYS_PINFUNC);
+ au_sync();
+ pin_func &= ~(3<<17 | 1<<4);
+ /* Set GPIOs correctly */
+ pin_func |= 2<<17;
+ au_writel(pin_func, SYS_PINFUNC);
+ au_sync();
+
+ /* The i2c driver depends on 50Mhz clock */
+ freq0 = au_readl(SYS_FREQCTRL0);
+ au_sync();
+ freq0 &= ~(SYS_FC_FRDIV1_MASK | SYS_FC_FS1 | SYS_FC_FE1);
+ freq0 |= (3<<SYS_FC_FRDIV1_BIT);
+ /* 396Mhz / (3+1)*2 == 49.5Mhz */
+ au_writel(freq0, SYS_FREQCTRL0);
+ au_sync();
+ freq0 |= SYS_FC_FE1;
+ au_writel(freq0, SYS_FREQCTRL0);
+ au_sync();
+
+ clksrc = au_readl(SYS_CLKSRC);
+ au_sync();
+ clksrc &= ~0x01f00000;
+ /* bit 22 is EXTCLK0 for PSC0 */
+ clksrc |= (0x3 << 22);
+ au_writel(clksrc, SYS_CLKSRC);
+ au_sync();
+ }
+#endif
+
+#ifdef CONFIG_FB_AU1200
+ argptr = prom_getcmdline();
+#ifdef CONFIG_MIPS_PB1200
+ strcat(argptr, " video=au1200fb:panel:bs");
+#endif
+#ifdef CONFIG_MIPS_DB1200
+ strcat(argptr, " video=au1200fb:panel:bs");
+#endif
+#endif
+
+ /* The Pb1200 development board uses external MUX for PSC0 to
+ support SMB/SPI. bcsr->resets bit 12: 0=SMB 1=SPI
+ */
+#if defined(CONFIG_AU1XXX_PSC_SPI) && defined(CONFIG_I2C_AU1550)
+ #error I2C and SPI are mutually exclusive. Both are physically connected to PSC0.\
+ Refer to Pb1200/Db1200 documentation.
+#elif defined( CONFIG_AU1XXX_PSC_SPI )
+ bcsr->resets |= BCSR_RESETS_PCS0MUX;
+ /*Hard Coding Value to enable Temp Sensors [bit 14] Value for SOC Au1200. Pls refer documentation*/
+ bcsr->resets =0x900f;
+#elif defined( CONFIG_I2C_AU1550 )
+ bcsr->resets &= (~BCSR_RESETS_PCS0MUX);
+#endif
+ au_sync();
+
+#ifdef CONFIG_MIPS_PB1200
+ printk("AMD Alchemy Pb1200 Board\n");
+#endif
+#ifdef CONFIG_MIPS_DB1200
+ printk("AMD Alchemy Db1200 Board\n");
+#endif
+
+ /* Setup Pb1200 External Interrupt Controller */
+ {
+ extern void (*board_init_irq)(void);
+ extern void _board_init_irq(void);
+ board_init_irq = _board_init_irq;
+ }
+}
+
+int
+board_au1200fb_panel (void)
+{
+ BCSR *bcsr = (BCSR *)BCSR_KSEG1_ADDR;
+ int p;
+
+ p = bcsr->switches;
+ p >>= 8;
+ p &= 0x0F;
+ return p;
+}
+
+int
+board_au1200fb_panel_init (void)
+{
+ /* Apply power */
+ BCSR *bcsr = (BCSR *)BCSR_KSEG1_ADDR;
+ bcsr->board |= (BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD | BCSR_BOARD_LCDBL);
+ /*printk("board_au1200fb_panel_init()\n"); */
+ return 0;
+}
+
+int
+board_au1200fb_panel_shutdown (void)
+{
+ /* Remove power */
+ BCSR *bcsr = (BCSR *)BCSR_KSEG1_ADDR;
+ bcsr->board &= ~(BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD | BCSR_BOARD_LCDBL);
+ /*printk("board_au1200fb_panel_shutdown()\n"); */
+ return 0;
+}
+
git://git.onelab.eu / linux-2.6.git / blobdiff