1 files changed, 127 insertions, 0 deletions

diff --git a/arch/mips/alchemy/devboards/pb1100/board_setup.c b/arch/mips/alchemy/devboards/pb1100/board_setup.c
new file mode 100644
index 00000000000..d108fd573aa
--- /dev/null
+++ b/arch/mips/alchemy/devboards/pb1100/board_setup.c
@@ -0,0 +1,127 @@
+/*
+ * Copyright 2002, 2008 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc. <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/gpio.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-db1x00/bcsr.h>
+
+#include <prom.h>
+
+
+const char *get_system_type(void)
+{
+        return "Alchemy Pb1100";
+}
+
+void __init board_setup(void)
+{
+        volatile void __iomem *base = (volatile void __iomem *)0xac000000UL;
+
+        bcsr_init(DB1000_BCSR_PHYS_ADDR,
+                  DB1000_BCSR_PHYS_ADDR + DB1000_BCSR_HEXLED_OFS);
+
+        /* Set AUX clock to 12 MHz * 8 = 96 MHz */
+        au_writel(8, SYS_AUXPLL);
+        alchemy_gpio1_input_enable();
+        udelay(100);
+
+#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
+        {
+                u32 pin_func, sys_freqctrl, sys_clksrc;
+
+                /* Configure pins GPIO[14:9] as GPIO */
+                pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_UR3;
+
+                /* Zero and disable FREQ2 */
+                sys_freqctrl = au_readl(SYS_FREQCTRL0);
+                sys_freqctrl &= ~0xFFF00000;
+                au_writel(sys_freqctrl, SYS_FREQCTRL0);
+
+                /* Zero and disable USBH/USBD/IrDA clock */
+                sys_clksrc = au_readl(SYS_CLKSRC);
+                sys_clksrc &= ~(SYS_CS_CIR | SYS_CS_DIR | SYS_CS_MIR_MASK);
+                au_writel(sys_clksrc, SYS_CLKSRC);
+
+                sys_freqctrl = au_readl(SYS_FREQCTRL0);
+                sys_freqctrl &= ~0xFFF00000;
+
+                sys_clksrc = au_readl(SYS_CLKSRC);
+                sys_clksrc &= ~(SYS_CS_CIR | SYS_CS_DIR | SYS_CS_MIR_MASK);
+
+                /* FREQ2 = aux / 2 = 48 MHz */
+                sys_freqctrl |= (0 << SYS_FC_FRDIV2_BIT) |
+                                SYS_FC_FE2 | SYS_FC_FS2;
+                au_writel(sys_freqctrl, SYS_FREQCTRL0);
+
+                /*
+                 * Route 48 MHz FREQ2 into USBH/USBD/IrDA
+                 */
+                sys_clksrc |= SYS_CS_MUX_FQ2 << SYS_CS_MIR_BIT;
+                au_writel(sys_clksrc, SYS_CLKSRC);
+
+                /* Setup the static bus controller */
+                au_writel(0x00000002, MEM_STCFG3);  /* type = PCMCIA */
+                au_writel(0x280E3D07, MEM_STTIME3); /* 250ns cycle time */
+                au_writel(0x10000000, MEM_STADDR3); /* any PCMCIA select */
+
+                /*
+                 * Get USB Functionality pin state (device vs host drive pins).
+                 */
+                pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_USB;
+                /* 2nd USB port is USB host. */
+                pin_func |= SYS_PF_USB;
+                au_writel(pin_func, SYS_PINFUNC);
+        }
+#endif /* defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) */
+
+        /* Enable sys bus clock divider when IDLE state or no bus activity. */
+        au_writel(au_readl(SYS_POWERCTRL) | (0x3 << 5), SYS_POWERCTRL);
+
+        /* Enable the RTC if not already enabled. */
+        if (!(readb(base + 0x28) & 0x20)) {
+                writeb(readb(base + 0x28) | 0x20, base + 0x28);
+                au_sync();
+        }
+        /* Put the clock in BCD mode. */
+        if (readb(base + 0x2C) & 0x4) { /* reg B */
+                writeb(readb(base + 0x2c) & ~0x4, base + 0x2c);
+                au_sync();
+        }
+}
+
+static int __init pb1100_init_irq(void)
+{
+        irq_set_irq_type(AU1100_GPIO9_INT, IRQF_TRIGGER_LOW); /* PCCD# */
+        irq_set_irq_type(AU1100_GPIO10_INT, IRQF_TRIGGER_LOW); /* PCSTSCHG# */
+        irq_set_irq_type(AU1100_GPIO11_INT, IRQF_TRIGGER_LOW); /* PCCard# */
+        irq_set_irq_type(AU1100_GPIO13_INT, IRQF_TRIGGER_LOW); /* DC_IRQ# */
+
+        return 0;
+}
+arch_initcall(pb1100_init_irq);