Merge branches 'boards' and 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6

1 files changed, 189 insertions, 0 deletions

diff --git a/arch/mips/alchemy/common/reset.c b/arch/mips/alchemy/common/reset.c
new file mode 100644
index 00000000000..d555429c8d6
--- /dev/null
+++ b/arch/mips/alchemy/common/reset.c
@@ -0,0 +1,189 @@
+/*
+ *
+ * BRIEF MODULE DESCRIPTION
+ *	Au1xx0 reset routines.
+ *
+ * Copyright 2001, 2006, 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 <asm/cacheflush.h>
+
+#include <asm/mach-au1x00/au1000.h>
+
+extern int au_sleep(void);
+
+void au1000_restart(char *command)
+{
+	/* Set all integrated peripherals to disabled states */
+	extern void board_reset(void);
+	u32 prid = read_c0_prid();
+
+	printk(KERN_NOTICE "\n** Resetting Integrated Peripherals\n");
+
+	switch (prid & 0xFF000000) {
+	case 0x00000000: /* Au1000 */
+		au_writel(0x02, 0xb0000010); /* ac97_enable */
+		au_writel(0x08, 0xb017fffc); /* usbh_enable - early errata */
+		asm("sync");
+		au_writel(0x00, 0xb017fffc); /* usbh_enable */
+		au_writel(0x00, 0xb0200058); /* usbd_enable */
+		au_writel(0x00, 0xb0300040); /* ir_enable */
+		au_writel(0x00, 0xb4004104); /* mac dma */
+		au_writel(0x00, 0xb4004114); /* mac dma */
+		au_writel(0x00, 0xb4004124); /* mac dma */
+		au_writel(0x00, 0xb4004134); /* mac dma */
+		au_writel(0x00, 0xb0520000); /* macen0 */
+		au_writel(0x00, 0xb0520004); /* macen1 */
+		au_writel(0x00, 0xb1000008); /* i2s_enable  */
+		au_writel(0x00, 0xb1100100); /* uart0_enable */
+		au_writel(0x00, 0xb1200100); /* uart1_enable */
+		au_writel(0x00, 0xb1300100); /* uart2_enable */
+		au_writel(0x00, 0xb1400100); /* uart3_enable */
+		au_writel(0x02, 0xb1600100); /* ssi0_enable */
+		au_writel(0x02, 0xb1680100); /* ssi1_enable */
+		au_writel(0x00, 0xb1900020); /* sys_freqctrl0 */
+		au_writel(0x00, 0xb1900024); /* sys_freqctrl1 */
+		au_writel(0x00, 0xb1900028); /* sys_clksrc */
+		au_writel(0x10, 0xb1900060); /* sys_cpupll */
+		au_writel(0x00, 0xb1900064); /* sys_auxpll */
+		au_writel(0x00, 0xb1900100); /* sys_pininputen */
+		break;
+	case 0x01000000: /* Au1500 */
+		au_writel(0x02, 0xb0000010); /* ac97_enable */
+		au_writel(0x08, 0xb017fffc); /* usbh_enable - early errata */
+		asm("sync");
+		au_writel(0x00, 0xb017fffc); /* usbh_enable */
+		au_writel(0x00, 0xb0200058); /* usbd_enable */
+		au_writel(0x00, 0xb4004104); /* mac dma */
+		au_writel(0x00, 0xb4004114); /* mac dma */
+		au_writel(0x00, 0xb4004124); /* mac dma */
+		au_writel(0x00, 0xb4004134); /* mac dma */
+		au_writel(0x00, 0xb1520000); /* macen0 */
+		au_writel(0x00, 0xb1520004); /* macen1 */
+		au_writel(0x00, 0xb1100100); /* uart0_enable */
+		au_writel(0x00, 0xb1400100); /* uart3_enable */
+		au_writel(0x00, 0xb1900020); /* sys_freqctrl0 */
+		au_writel(0x00, 0xb1900024); /* sys_freqctrl1 */
+		au_writel(0x00, 0xb1900028); /* sys_clksrc */
+		au_writel(0x10, 0xb1900060); /* sys_cpupll */
+		au_writel(0x00, 0xb1900064); /* sys_auxpll */
+		au_writel(0x00, 0xb1900100); /* sys_pininputen */
+		break;
+	case 0x02000000: /* Au1100 */
+		au_writel(0x02, 0xb0000010); /* ac97_enable */
+		au_writel(0x08, 0xb017fffc); /* usbh_enable - early errata */
+		asm("sync");
+		au_writel(0x00, 0xb017fffc); /* usbh_enable */
+		au_writel(0x00, 0xb0200058); /* usbd_enable */
+		au_writel(0x00, 0xb0300040); /* ir_enable */
+		au_writel(0x00, 0xb4004104); /* mac dma */
+		au_writel(0x00, 0xb4004114); /* mac dma */
+		au_writel(0x00, 0xb4004124); /* mac dma */
+		au_writel(0x00, 0xb4004134); /* mac dma */
+		au_writel(0x00, 0xb0520000); /* macen0 */
+		au_writel(0x00, 0xb1000008); /* i2s_enable  */
+		au_writel(0x00, 0xb1100100); /* uart0_enable */
+		au_writel(0x00, 0xb1200100); /* uart1_enable */
+		au_writel(0x00, 0xb1400100); /* uart3_enable */
+		au_writel(0x02, 0xb1600100); /* ssi0_enable */
+		au_writel(0x02, 0xb1680100); /* ssi1_enable */
+		au_writel(0x00, 0xb1900020); /* sys_freqctrl0 */
+		au_writel(0x00, 0xb1900024); /* sys_freqctrl1 */
+		au_writel(0x00, 0xb1900028); /* sys_clksrc */
+		au_writel(0x10, 0xb1900060); /* sys_cpupll */
+		au_writel(0x00, 0xb1900064); /* sys_auxpll */
+		au_writel(0x00, 0xb1900100); /* sys_pininputen */
+		break;
+	case 0x03000000: /* Au1550 */
+		au_writel(0x00, 0xb1a00004); /* psc 0 */
+		au_writel(0x00, 0xb1b00004); /* psc 1 */
+		au_writel(0x00, 0xb0a00004); /* psc 2 */
+		au_writel(0x00, 0xb0b00004); /* psc 3 */
+		au_writel(0x00, 0xb017fffc); /* usbh_enable */
+		au_writel(0x00, 0xb0200058); /* usbd_enable */
+		au_writel(0x00, 0xb4004104); /* mac dma */
+		au_writel(0x00, 0xb4004114); /* mac dma */
+		au_writel(0x00, 0xb4004124); /* mac dma */
+		au_writel(0x00, 0xb4004134); /* mac dma */
+		au_writel(0x00, 0xb1520000); /* macen0 */
+		au_writel(0x00, 0xb1520004); /* macen1 */
+		au_writel(0x00, 0xb1100100); /* uart0_enable */
+		au_writel(0x00, 0xb1200100); /* uart1_enable */
+		au_writel(0x00, 0xb1400100); /* uart3_enable */
+		au_writel(0x00, 0xb1900020); /* sys_freqctrl0 */
+		au_writel(0x00, 0xb1900024); /* sys_freqctrl1 */
+		au_writel(0x00, 0xb1900028); /* sys_clksrc */
+		au_writel(0x10, 0xb1900060); /* sys_cpupll */
+		au_writel(0x00, 0xb1900064); /* sys_auxpll */
+		au_writel(0x00, 0xb1900100); /* sys_pininputen */
+		break;
+	}
+
+	set_c0_status(ST0_BEV | ST0_ERL);
+	change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED);
+	flush_cache_all();
+	write_c0_wired(0);
+
+	/* Give board a chance to do a hardware reset */
+	board_reset();
+
+	/* Jump to the beggining in case board_reset() is empty */
+	__asm__ __volatile__("jr\t%0"::"r"(0xbfc00000));
+}
+
+void au1000_halt(void)
+{
+#if defined(CONFIG_MIPS_PB1550) || defined(CONFIG_MIPS_DB1550)
+	/* Power off system */
+	printk(KERN_NOTICE "\n** Powering off...\n");
+	au_writew(au_readw(0xAF00001C) | (3 << 14), 0xAF00001C);
+	au_sync();
+	while (1); /* should not get here */
+#else
+	printk(KERN_NOTICE "\n** You can safely turn off the power\n");
+#ifdef CONFIG_MIPS_MIRAGE
+	au_writel((1 << 26) | (1 << 10), GPIO2_OUTPUT);
+#endif
+#ifdef CONFIG_MIPS_DB1200
+	au_writew(au_readw(0xB980001C) | (1 << 14), 0xB980001C);
+#endif
+#ifdef CONFIG_PM
+	au_sleep();
+
+	/* Should not get here */
+	printk(KERN_ERR "Unable to put CPU in sleep mode\n");
+	while (1);
+#else
+	while (1)
+		__asm__(".set\tmips3\n\t"
+	                "wait\n\t"
+			".set\tmips0");
+#endif
+#endif /* defined(CONFIG_MIPS_PB1550) || defined(CONFIG_MIPS_DB1550) */
+}
+
+void au1000_power_off(void)
+{
+	au1000_halt();
+}