1 files changed, 119 insertions, 0 deletions

diff --git a/arch/mips/alchemy/pb1500/board_setup.c b/arch/mips/alchemy/pb1500/board_setup.c
new file mode 100644
index 00000000000..035771c6e5b
--- /dev/null
+++ b/arch/mips/alchemy/pb1500/board_setup.c
@@ -0,0 +1,119 @@
+/*
+ * Copyright 2000, 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/init.h>
+#include <linux/delay.h>
+
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-pb1x00/pb1500.h>
+
+void board_reset(void)
+{
+        /* Hit BCSR.RST_VDDI[SOFT_RESET] */
+        au_writel(0x00000000, PB1500_RST_VDDI);
+}
+
+void __init board_setup(void)
+{
+        u32 pin_func;
+        u32 sys_freqctrl, sys_clksrc;
+
+        sys_clksrc = sys_freqctrl = pin_func = 0;
+        /* Set AUX clock to 12 MHz * 8 = 96 MHz */
+        au_writel(8, SYS_AUXPLL);
+        au_writel(0, SYS_PINSTATERD);
+        udelay(100);
+
+#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
+
+        /* GPIO201 is input for PCMCIA card detect */
+        /* GPIO203 is input for PCMCIA interrupt request */
+        au_writel(au_readl(GPIO2_DIR) & ~((1 << 1) | (1 << 3)), GPIO2_DIR);
+
+        /* Zero and disable FREQ2 */
+        sys_freqctrl = au_readl(SYS_FREQCTRL0);
+        sys_freqctrl &= ~0xFFF00000;
+        au_writel(sys_freqctrl, SYS_FREQCTRL0);
+
+        /* zero and disable USBH/USBD clocks */
+        sys_clksrc = au_readl(SYS_CLKSRC);
+        sys_clksrc &= ~(SYS_CS_CUD | SYS_CS_DUD | SYS_CS_MUD_MASK |
+                        SYS_CS_CUH | SYS_CS_DUH | SYS_CS_MUH_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_CUD | SYS_CS_DUD | SYS_CS_MUD_MASK |
+                        SYS_CS_CUH | SYS_CS_DUH | SYS_CS_MUH_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 48MHz FREQ2 into USB Host and/or Device
+         */
+        sys_clksrc |= SYS_CS_MUX_FQ2 << SYS_CS_MUH_BIT;
+        au_writel(sys_clksrc, SYS_CLKSRC);
+
+        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) */
+
+#ifdef CONFIG_PCI
+        /* Setup PCI bus controller */
+        au_writel(0, Au1500_PCI_CMEM);
+        au_writel(0x00003fff, Au1500_CFG_BASE);
+#if defined(__MIPSEB__)
+        au_writel(0xf | (2 << 6) | (1 << 4), Au1500_PCI_CFG);
+#else
+        au_writel(0xf, Au1500_PCI_CFG);
+#endif
+        au_writel(0xf0000000, Au1500_PCI_MWMASK_DEV);
+        au_writel(0, Au1500_PCI_MWBASE_REV_CCL);
+        au_writel(0x02a00356, Au1500_PCI_STATCMD);
+        au_writel(0x00003c04, Au1500_PCI_HDRTYPE);
+        au_writel(0x00000008, Au1500_PCI_MBAR);
+        au_sync();
+#endif
+
+        /* 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 (!(au_readl(0xac000028) & 0x20)) {
+                printk(KERN_INFO "enabling clock ...\n");
+                au_writel((au_readl(0xac000028) | 0x20), 0xac000028);
+        }
+        /* Put the clock in BCD mode */
+        if (au_readl(0xac00002c) & 0x4) { /* reg B */
+                au_writel(au_readl(0xac00002c) & ~0x4, 0xac00002c);
+                au_sync();
+        }
+}