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authorManuel Lauss <manuel.lauss@googlemail.com>2009-12-08 19:18:13 +0100
committerRalf Baechle <ralf@linux-mips.org>2010-02-27 12:53:04 +0100
commit32fd6901a6d8d19f94e4de6be4e4b552ab078620 (patch)
treeb0bce261bcdbf6cd4b4026711ee5cbc6e10d9892 /arch/mips
parent325f8a0a31df567dbafafc48f8e60f3c1f101a46 (diff)
downloadlinux-2.6.34-ux500-32fd6901a6d8d19f94e4de6be4e4b552ab078620.tar.gz
MIPS: Alchemy: get rid of common/reset.c
Implement reset / poweroff in the board code instead. The peripheral reset code is gone too since YAMON which all in-tree boards use does the same work when it boots. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org> Cc: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: http://patchwork.linux-mips.org/patch/783/ Patchwork: http://patchwork.linux-mips.org/patch/882/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/alchemy/common/Makefile3
-rw-r--r--arch/mips/alchemy/common/reset.c185
-rw-r--r--arch/mips/alchemy/common/setup.c9
-rw-r--r--arch/mips/alchemy/devboards/db1200/setup.c19
-rw-r--r--arch/mips/alchemy/devboards/db1x00/board_setup.c49
-rw-r--r--arch/mips/alchemy/devboards/platform.c29
-rw-r--r--arch/mips/alchemy/mtx-1/board_setup.c15
-rw-r--r--arch/mips/alchemy/xxs1500/board_setup.c15
8 files changed, 99 insertions, 225 deletions
diff --git a/arch/mips/alchemy/common/Makefile b/arch/mips/alchemy/common/Makefile
index f46b351a961..06c0e65a54b 100644
--- a/arch/mips/alchemy/common/Makefile
+++ b/arch/mips/alchemy/common/Makefile
@@ -5,8 +5,7 @@
# Makefile for the Alchemy Au1xx0 CPUs, generic files.
#
-obj-y += prom.o time.o reset.o \
- clocks.o platform.o power.o setup.o \
+obj-y += prom.o time.o clocks.o platform.o power.o setup.o \
sleeper.o dma.o dbdma.o
obj-$(CONFIG_ALCHEMY_GPIOINT_AU1000) += irq.o
diff --git a/arch/mips/alchemy/common/reset.c b/arch/mips/alchemy/common/reset.c
deleted file mode 100644
index 266afd48c19..00000000000
--- a/arch/mips/alchemy/common/reset.c
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
- *
- * 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 <linux/gpio.h>
-
-#include <asm/cacheflush.h>
-#include <asm/mach-au1x00/au1000.h>
-
-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
- gpio_direction_output(210, 1);
-#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();
-}
diff --git a/arch/mips/alchemy/common/setup.c b/arch/mips/alchemy/common/setup.c
index 375984e5c2e..193ba166aff 100644
--- a/arch/mips/alchemy/common/setup.c
+++ b/arch/mips/alchemy/common/setup.c
@@ -29,18 +29,13 @@
#include <linux/ioport.h>
#include <linux/jiffies.h>
#include <linux/module.h>
-#include <linux/pm.h>
#include <asm/mipsregs.h>
-#include <asm/reboot.h>
#include <asm/time.h>
#include <au1000.h>
extern void __init board_setup(void);
-extern void au1000_restart(char *);
-extern void au1000_halt(void);
-extern void au1000_power_off(void);
extern void set_cpuspec(void);
void __init plat_mem_setup(void)
@@ -57,10 +52,6 @@ void __init plat_mem_setup(void)
/* this is faster than wasting cycles trying to approximate it */
preset_lpj = (est_freq >> 1) / HZ;
- _machine_restart = au1000_restart;
- _machine_halt = au1000_halt;
- pm_power_off = au1000_power_off;
-
board_setup(); /* board specific setup */
if (au1xxx_cpu_needs_config_od())
diff --git a/arch/mips/alchemy/devboards/db1200/setup.c b/arch/mips/alchemy/devboards/db1200/setup.c
index a3458c0e405..379536e3abd 100644
--- a/arch/mips/alchemy/devboards/db1200/setup.c
+++ b/arch/mips/alchemy/devboards/db1200/setup.c
@@ -9,30 +9,15 @@
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/kernel.h>
-#include <linux/pm.h>
#include <asm/mach-au1x00/au1000.h>
#include <asm/mach-db1x00/bcsr.h>
#include <asm/mach-db1x00/db1200.h>
-#include <asm/processor.h>
-#include <asm/reboot.h>
const char *get_system_type(void)
{
return "Alchemy Db1200";
}
-static void board_power_off(void)
-{
- bcsr_write(BCSR_RESETS, 0);
- bcsr_write(BCSR_SYSTEM, BCSR_SYSTEM_PWROFF | BCSR_SYSTEM_RESET);
-}
-
-void board_reset(void)
-{
- bcsr_write(BCSR_RESETS, 0);
- bcsr_write(BCSR_SYSTEM, 0);
-}
-
void __init board_setup(void)
{
unsigned long freq0, clksrc, div, pfc;
@@ -73,10 +58,6 @@ void __init board_setup(void)
clksrc = SYS_CS_MUX_FQ0 << SYS_CS_ME0_BIT;
__raw_writel(clksrc, (void __iomem *)SYS_CLKSRC);
wmb();
-
- pm_power_off = board_power_off;
- _machine_halt = board_power_off;
- _machine_restart = (void(*)(char *))board_reset;
}
/* use the hexleds to count the number of times the cpu has entered
diff --git a/arch/mips/alchemy/devboards/db1x00/board_setup.c b/arch/mips/alchemy/devboards/db1x00/board_setup.c
index b490efff4dc..56c541d0c55 100644
--- a/arch/mips/alchemy/devboards/db1x00/board_setup.c
+++ b/arch/mips/alchemy/devboards/db1x00/board_setup.c
@@ -30,11 +30,13 @@
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/interrupt.h>
+#include <linux/pm.h>
#include <asm/mach-au1x00/au1000.h>
#include <asm/mach-au1x00/au1xxx_eth.h>
#include <asm/mach-db1x00/db1x00.h>
#include <asm/mach-db1x00/bcsr.h>
+#include <asm/reboot.h>
#include <prom.h>
@@ -43,6 +45,18 @@ char irq_tab_alchemy[][5] __initdata = {
[12] = { -1, AU1500_PCI_INTA, 0xff, 0xff, 0xff }, /* IDSEL 12 - HPT371 */
[13] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTB, AU1500_PCI_INTC, AU1500_PCI_INTD }, /* IDSEL 13 - PCI slot */
};
+
+static void bosporus_power_off(void)
+{
+ printk(KERN_INFO "It's now safe to turn off power\n");
+ while (1)
+ asm volatile (".set mips3 ; wait ; .set mips0");
+}
+
+const char *get_system_type(void)
+{
+ return "Alchemy Bosporus Gateway Reference";
+}
#endif
/*
@@ -73,6 +87,16 @@ char irq_tab_alchemy[][5] __initdata = {
[12] = { -1, 0xff, 0xff, AU1500_PCI_INTC, 0xff }, /* IDSEL 12 - PNX1300 */
[13] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTB, 0xff, 0xff }, /* IDSEL 13 - miniPCI */
};
+
+static void mirage_power_off(void)
+{
+ alchemy_gpio_direction_output(210, 1);
+}
+
+const char *get_system_type(void)
+{
+ return "Alchemy Mirage";
+}
#endif
#ifdef CONFIG_MIPS_DB1550
@@ -83,19 +107,19 @@ char irq_tab_alchemy[][5] __initdata = {
};
#endif
-const char *get_system_type(void)
+#if defined(CONFIG_MIPS_BOSPORUS) || defined(CONFIG_MIPS_MIRAGE)
+static void mips_softreset(void)
{
-#ifdef CONFIG_MIPS_BOSPORUS
- return "Alchemy Bosporus Gateway Reference";
-#else
- return "Alchemy Db1x00";
-#endif
+ asm volatile ("jr\t%0" : : "r"(0xbfc00000));
}
-void board_reset(void)
+#else
+
+const char *get_system_type(void)
{
- bcsr_write(BCSR_SYSTEM, 0);
+ return "Alchemy Db1x00";
}
+#endif
void __init board_setup(void)
{
@@ -196,8 +220,17 @@ void __init board_setup(void)
* be part of the audio driver.
*/
alchemy_gpio_direction_output(209, 1);
+
+ pm_power_off = mirage_power_off;
+ _machine_halt = mirage_power_off;
+ _machine_restart = (void(*)(char *))mips_softreset;
#endif
+#ifdef CONFIG_MIPS_BOSPORUS
+ pm_power_off = bosporus_power_off;
+ _machine_halt = bosporus_power_off;
+ _machine_restart = (void(*)(char *))mips_softreset;
+#endif
au_sync();
}
diff --git a/arch/mips/alchemy/devboards/platform.c b/arch/mips/alchemy/devboards/platform.c
index 7f2bcee7ac3..febf4e04234 100644
--- a/arch/mips/alchemy/devboards/platform.c
+++ b/arch/mips/alchemy/devboards/platform.c
@@ -8,6 +8,35 @@
#include <linux/mtd/physmap.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
+#include <linux/pm.h>
+
+#include <asm/reboot.h>
+#include <asm/mach-db1x00/bcsr.h>
+
+static void db1x_power_off(void)
+{
+ bcsr_write(BCSR_RESETS, 0);
+ bcsr_write(BCSR_SYSTEM, BCSR_SYSTEM_PWROFF | BCSR_SYSTEM_RESET);
+}
+
+static void db1x_reset(char *c)
+{
+ bcsr_write(BCSR_RESETS, 0);
+ bcsr_write(BCSR_SYSTEM, 0);
+}
+
+static int __init db1x_poweroff_setup(void)
+{
+ if (!pm_power_off)
+ pm_power_off = db1x_power_off;
+ if (!_machine_halt)
+ _machine_halt = db1x_power_off;
+ if (!_machine_restart)
+ _machine_restart = db1x_reset;
+
+ return 0;
+}
+late_initcall(db1x_poweroff_setup);
/* register a pcmcia socket */
int __init db1x_register_pcmcia_socket(unsigned long pseudo_attr_start,
diff --git a/arch/mips/alchemy/mtx-1/board_setup.c b/arch/mips/alchemy/mtx-1/board_setup.c
index 13577eec8b4..e2838c6185d 100644
--- a/arch/mips/alchemy/mtx-1/board_setup.c
+++ b/arch/mips/alchemy/mtx-1/board_setup.c
@@ -31,7 +31,9 @@
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/interrupt.h>
+#include <linux/pm.h>
+#include <asm/reboot.h>
#include <asm/mach-au1x00/au1000.h>
#include <prom.h>
@@ -50,12 +52,19 @@ char irq_tab_alchemy[][5] __initdata = {
extern int (*board_pci_idsel)(unsigned int devsel, int assert);
int mtx1_pci_idsel(unsigned int devsel, int assert);
-void board_reset(void)
+static void mtx1_reset(char *c)
{
/* Hit BCSR.SYSTEM_CONTROL[SW_RST] */
au_writel(0x00000000, 0xAE00001C);
}
+static void mtx1_power_off(void)
+{
+ printk(KERN_ALERT "It's now safe to remove power\n");
+ while (1)
+ asm volatile (".set mips3 ; wait ; .set mips1");
+}
+
void __init board_setup(void)
{
#ifdef CONFIG_SERIAL_8250_CONSOLE
@@ -98,6 +107,10 @@ void __init board_setup(void)
alchemy_gpio_direction_output(211, 1); /* green on */
alchemy_gpio_direction_output(212, 0); /* red off */
+ pm_power_off = mtx1_power_off;
+ _machine_halt = mtx1_power_off;
+ _machine_restart = mtx1_reset;
+
printk(KERN_INFO "4G Systems MTX-1 Board\n");
}
diff --git a/arch/mips/alchemy/xxs1500/board_setup.c b/arch/mips/alchemy/xxs1500/board_setup.c
index 21bef8dc088..7956afa78c4 100644
--- a/arch/mips/alchemy/xxs1500/board_setup.c
+++ b/arch/mips/alchemy/xxs1500/board_setup.c
@@ -27,17 +27,26 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
+#include <linux/pm.h>
+#include <asm/reboot.h>
#include <asm/mach-au1x00/au1000.h>
#include <prom.h>
-void board_reset(void)
+static void xxs1500_reset(char *c)
{
/* Hit BCSR.SYSTEM_CONTROL[SW_RST] */
au_writel(0x00000000, 0xAE00001C);
}
+static void xxs1500_power_off(void)
+{
+ printk(KERN_ALERT "It's now safe to remove power\n");
+ while (1)
+ asm volatile (".set mips3 ; wait ; .set mips1");
+}
+
void __init board_setup(void)
{
u32 pin_func;
@@ -52,6 +61,10 @@ void __init board_setup(void)
}
#endif
+ pm_power_off = xxs1500_power_off;
+ _machine_halt = xxs1500_power_off;
+ _machine_restart = xxs1500_reset;
+
alchemy_gpio1_input_enable();
alchemy_gpio2_enable();