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-rw-r--r--arch/mips/au1000/pb1200/Makefile5
-rw-r--r--arch/mips/au1000/pb1200/board_setup.c193
-rw-r--r--arch/mips/au1000/pb1200/init.c69
-rw-r--r--arch/mips/au1000/pb1200/irqmap.c182
4 files changed, 449 insertions, 0 deletions
diff --git a/arch/mips/au1000/pb1200/Makefile b/arch/mips/au1000/pb1200/Makefile
new file mode 100644
index 00000000000..22b673cf55a
--- /dev/null
+++ b/arch/mips/au1000/pb1200/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the Alchemy Semiconductor PB1200 board.
+#
+
+lib-y := init.o board_setup.o irqmap.o
diff --git a/arch/mips/au1000/pb1200/board_setup.c b/arch/mips/au1000/pb1200/board_setup.c
new file mode 100644
index 00000000000..a45b17538ac
--- /dev/null
+++ b/arch/mips/au1000/pb1200/board_setup.c
@@ -0,0 +1,193 @@
+/*
+ *
+ * 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;
+}
+
diff --git a/arch/mips/au1000/pb1200/init.c b/arch/mips/au1000/pb1200/init.c
new file mode 100644
index 00000000000..27f09e374e1
--- /dev/null
+++ b/arch/mips/au1000/pb1200/init.c
@@ -0,0 +1,69 @@
+/*
+ *
+ * BRIEF MODULE DESCRIPTION
+ * PB1200 board setup
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ * ppopov@mvista.com or source@mvista.com
+ *
+ * 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/init.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/bootmem.h>
+#include <asm/addrspace.h>
+#include <asm/bootinfo.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+
+int prom_argc;
+char **prom_argv, **prom_envp;
+extern void __init prom_init_cmdline(void);
+extern char *prom_getenv(char *envname);
+
+const char *get_system_type(void)
+{
+ return "Alchemy Pb1200";
+}
+
+void __init prom_init(void)
+{
+ unsigned char *memsize_str;
+ unsigned long memsize;
+
+ prom_argc = (int) fw_arg0;
+ prom_argv = (char **) fw_arg1;
+ prom_envp = (char **) fw_arg2;
+
+ mips_machgroup = MACH_GROUP_ALCHEMY;
+ mips_machtype = MACH_PB1200;
+
+ prom_init_cmdline();
+ memsize_str = prom_getenv("memsize");
+ if (!memsize_str) {
+ memsize = 0x08000000;
+ } else {
+ memsize = simple_strtol(memsize_str, NULL, 0);
+ }
+ add_memory_region(0, memsize, BOOT_MEM_RAM);
+}
diff --git a/arch/mips/au1000/pb1200/irqmap.c b/arch/mips/au1000/pb1200/irqmap.c
new file mode 100644
index 00000000000..59e70e5cf32
--- /dev/null
+++ b/arch/mips/au1000/pb1200/irqmap.c
@@ -0,0 +1,182 @@
+/*
+ * BRIEF MODULE DESCRIPTION
+ * Au1xxx irq map table
+ *
+ * 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/errno.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/kernel_stat.h>
+#include <linux/module.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/timex.h>
+#include <linux/slab.h>
+#include <linux/random.h>
+#include <linux/delay.h>
+
+#include <asm/bitops.h>
+#include <asm/bootinfo.h>
+#include <asm/io.h>
+#include <asm/mipsregs.h>
+#include <asm/system.h>
+#include <asm/mach-au1x00/au1000.h>
+
+#ifdef CONFIG_MIPS_PB1200
+#include <asm/mach-pb1x00/pb1200.h>
+#endif
+
+#ifdef CONFIG_MIPS_DB1200
+#include <asm/mach-db1x00/db1200.h>
+#define PB1200_INT_BEGIN DB1200_INT_BEGIN
+#define PB1200_INT_END DB1200_INT_END
+#endif
+
+au1xxx_irq_map_t au1xxx_irq_map[] = {
+ { AU1000_GPIO_7, INTC_INT_LOW_LEVEL, 0 }, // This is exteranl interrupt cascade
+};
+
+int au1xxx_nr_irqs = sizeof(au1xxx_irq_map)/sizeof(au1xxx_irq_map_t);
+
+/*
+ * Support for External interrupts on the PbAu1200 Development platform.
+ */
+static volatile int pb1200_cascade_en=0;
+
+irqreturn_t pb1200_cascade_handler( int irq, void *dev_id, struct pt_regs *regs)
+{
+ unsigned short bisr = bcsr->int_status;
+ int extirq_nr = 0;
+
+ /* Clear all the edge interrupts. This has no effect on level */
+ bcsr->int_status = bisr;
+ for( ; bisr; bisr &= (bisr-1) )
+ {
+ extirq_nr = (PB1200_INT_BEGIN-1) + au_ffs(bisr);
+ /* Ack and dispatch IRQ */
+ do_IRQ(extirq_nr,regs);
+ }
+ return IRQ_RETVAL(1);
+}
+
+inline void pb1200_enable_irq(unsigned int irq_nr)
+{
+ bcsr->intset_mask = 1<<(irq_nr - PB1200_INT_BEGIN);
+ bcsr->intset = 1<<(irq_nr - PB1200_INT_BEGIN);
+}
+
+inline void pb1200_disable_irq(unsigned int irq_nr)
+{
+ bcsr->intclr_mask = 1<<(irq_nr - PB1200_INT_BEGIN);
+ bcsr->intclr = 1<<(irq_nr - PB1200_INT_BEGIN);
+}
+
+static unsigned int pb1200_startup_irq( unsigned int irq_nr )
+{
+ if (++pb1200_cascade_en == 1)
+ {
+ request_irq(AU1000_GPIO_7, &pb1200_cascade_handler,
+ 0, "Pb1200 Cascade", (void *)&pb1200_cascade_handler );
+#ifdef CONFIG_MIPS_PB1200
+ /* We have a problem with CPLD rev3. Enable a workaround */
+ if( ((bcsr->whoami & BCSR_WHOAMI_CPLD)>>4) <= 3)
+ {
+ printk("\nWARNING!!!\n");
+ printk("\nWARNING!!!\n");
+ printk("\nWARNING!!!\n");
+ printk("\nWARNING!!!\n");
+ printk("\nWARNING!!!\n");
+ printk("\nWARNING!!!\n");
+ printk("Pb1200 must be at CPLD rev4. Please have Pb1200\n");
+ printk("updated to latest revision. This software will not\n");
+ printk("work on anything less than CPLD rev4\n");
+ printk("\nWARNING!!!\n");
+ printk("\nWARNING!!!\n");
+ printk("\nWARNING!!!\n");
+ printk("\nWARNING!!!\n");
+ printk("\nWARNING!!!\n");
+ printk("\nWARNING!!!\n");
+ while(1);
+ }
+#endif
+ }
+ pb1200_enable_irq(irq_nr);
+ return 0;
+}
+
+static void pb1200_shutdown_irq( unsigned int irq_nr )
+{
+ pb1200_disable_irq(irq_nr);
+ if (--pb1200_cascade_en == 0)
+ {
+ free_irq(AU1000_GPIO_7,&pb1200_cascade_handler );
+ }
+ return;
+}
+
+static inline void pb1200_mask_and_ack_irq(unsigned int irq_nr)
+{
+ pb1200_disable_irq( irq_nr );
+}
+
+static void pb1200_end_irq(unsigned int irq_nr)
+{
+ if (!(irq_desc[irq_nr].status & (IRQ_DISABLED|IRQ_INPROGRESS))) {
+ pb1200_enable_irq(irq_nr);
+ }
+}
+
+static struct hw_interrupt_type external_irq_type =
+{
+#ifdef CONFIG_MIPS_PB1200
+ "Pb1200 Ext",
+#endif
+#ifdef CONFIG_MIPS_DB1200
+ "Db1200 Ext",
+#endif
+ pb1200_startup_irq,
+ pb1200_shutdown_irq,
+ pb1200_enable_irq,
+ pb1200_disable_irq,
+ pb1200_mask_and_ack_irq,
+ pb1200_end_irq,
+ NULL
+};
+
+void _board_init_irq(void)
+{
+ int irq_nr;
+
+ for (irq_nr = PB1200_INT_BEGIN; irq_nr <= PB1200_INT_END; irq_nr++)
+ {
+ irq_desc[irq_nr].handler = &external_irq_type;
+ pb1200_disable_irq(irq_nr);
+ }
+
+ /* GPIO_7 can not be hooked here, so it is hooked upon first
+ request of any source attached to the cascade */
+}
+
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-25 02:20:26 +0000