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Diffstat (limited to 'arch/mips/alchemy/xxs1500/board_setup.c')
-rw-r--r--arch/mips/alchemy/xxs1500/board_setup.c79
1 files changed, 79 insertions, 0 deletions
diff --git a/arch/mips/alchemy/xxs1500/board_setup.c b/arch/mips/alchemy/xxs1500/board_setup.c
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index 000000000000..4c587acac5c3
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+++ b/arch/mips/alchemy/xxs1500/board_setup.c
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2000-2003, 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>
+
+void board_reset(void)
+{
+ /* Hit BCSR.SYSTEM_CONTROL[SW_RST] */
+ au_writel(0x00000000, 0xAE00001C);
+}
+
+void __init board_setup(void)
+{
+ u32 pin_func;
+
+ /* Set multiple use pins (UART3/GPIO) to UART (it's used as UART too) */
+ pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_UR3;
+ pin_func |= SYS_PF_UR3;
+ au_writel(pin_func, SYS_PINFUNC);
+
+ /* Enable UART */
+ au_writel(0x01, UART3_ADDR + UART_MOD_CNTRL); /* clock enable (CE) */
+ mdelay(10);
+ au_writel(0x03, UART3_ADDR + UART_MOD_CNTRL); /* CE and "enable" */
+ mdelay(10);
+
+ /* Enable DTR = USB power up */
+ au_writel(0x01, UART3_ADDR + UART_MCR); /* UART_MCR_DTR is 0x01??? */
+
+#ifdef CONFIG_PCMCIA_XXS1500
+ /* Setup PCMCIA signals */
+ au_writel(0, SYS_PININPUTEN);
+
+ /* GPIO 0, 1, and 4 are inputs */
+ au_writel(1 | (1 << 1) | (1 << 4), SYS_TRIOUTCLR);
+
+ /* Enable GPIO2 if not already enabled */
+ au_writel(1, GPIO2_ENABLE);
+ /* GPIO2 208/9/10/11 are inputs */
+ au_writel((1 << 8) | (1 << 9) | (1 << 10) | (1 << 11), GPIO2_DIR);
+
+ /* Turn off power */
+ au_writel((au_readl(GPIO2_PINSTATE) & ~(1 << 14)) | (1 << 30),
+ GPIO2_OUTPUT);
+#endif
+
+#ifdef CONFIG_PCI
+#if defined(__MIPSEB__)
+ au_writel(0xf | (2 << 6) | (1 << 4), Au1500_PCI_CFG);
+#else
+ au_writel(0xf, Au1500_PCI_CFG);
+#endif
+#endif
+}