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>

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

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())

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

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();
 }
 

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,