# Special cases for family ancestry.
obj-$(CONFIG_CPU_SH4A) += sh4a/
+obj-$(CONFIG_ARCH_SHMOBILE) += shmobile/
# Common interfaces.
pinmux-$(CONFIG_CPU_SUBTYPE_SH7785) := pinmux-sh7785.o
pinmux-$(CONFIG_CPU_SUBTYPE_SH7786) := pinmux-sh7786.o
-# Power Mangement & Sleep mode
-pm-$(CONFIG_ARCH_SHMOBILE) := pm-sh_mobile.o sleep-sh_mobile.o
-
obj-y += $(clock-y)
obj-$(CONFIG_SMP) += $(smp-y)
obj-$(CONFIG_GENERIC_GPIO) += $(pinmux-y)
-obj-$(CONFIG_PM) += $(pm-y)
+++ /dev/null
-/*
- * arch/sh/kernel/cpu/sh4a/pm-sh_mobile.c
- *
- * Power management support code for SuperH Mobile
- *
- * Copyright (C) 2009 Magnus Damm
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/io.h>
-#include <linux/suspend.h>
-#include <asm/suspend.h>
-#include <asm/uaccess.h>
-
-/*
- * Sleep modes available on SuperH Mobile:
- *
- * Sleep mode is just plain "sleep" instruction
- * Sleep Self-Refresh mode is above plus RAM put in Self-Refresh
- * Standby Self-Refresh mode is above plus stopped clocks
- */
-#define SUSP_MODE_SLEEP (SUSP_SH_SLEEP)
-#define SUSP_MODE_SLEEP_SF (SUSP_SH_SLEEP | SUSP_SH_SF)
-#define SUSP_MODE_STANDBY_SF (SUSP_SH_STANDBY | SUSP_SH_SF)
-
-/*
- * The following modes are not there yet:
- *
- * R-standby mode is unsupported, but will be added in the future
- * U-standby mode is low priority since it needs bootloader hacks
- *
- * All modes should be tied in with cpuidle. But before that can
- * happen we need to keep track of enabled hardware blocks so we
- * can avoid entering sleep modes that stop clocks to hardware
- * blocks that are in use even though the cpu core is idle.
- */
-
-extern const unsigned char sh_mobile_standby[];
-extern const unsigned int sh_mobile_standby_size;
-
-static void sh_mobile_call_standby(unsigned long mode)
-{
- extern void *vbr_base;
- void *onchip_mem = (void *)0xe5200000; /* ILRAM */
- void (*standby_onchip_mem)(unsigned long) = onchip_mem;
-
- /* Note: Wake up from sleep may generate exceptions!
- * Setup VBR to point to on-chip ram if self-refresh is
- * going to be used.
- */
- if (mode & SUSP_SH_SF)
- asm volatile("ldc %0, vbr" : : "r" (onchip_mem) : "memory");
-
- /* Copy the assembly snippet to the otherwise ununsed ILRAM */
- memcpy(onchip_mem, sh_mobile_standby, sh_mobile_standby_size);
- wmb();
- ctrl_barrier();
-
- /* Let assembly snippet in on-chip memory handle the rest */
- standby_onchip_mem(mode);
-
- /* Put VBR back in System RAM again */
- if (mode & SUSP_SH_SF)
- asm volatile("ldc %0, vbr" : : "r" (&vbr_base) : "memory");
-}
-
-static int sh_pm_enter(suspend_state_t state)
-{
- local_irq_disable();
- set_bl_bit();
- sh_mobile_call_standby(SUSP_MODE_STANDBY_SF);
- local_irq_disable();
- clear_bl_bit();
- return 0;
-}
-
-static struct platform_suspend_ops sh_pm_ops = {
- .enter = sh_pm_enter,
- .valid = suspend_valid_only_mem,
-};
-
-static int __init sh_pm_init(void)
-{
- suspend_set_ops(&sh_pm_ops);
- return 0;
-}
-
-late_initcall(sh_pm_init);
+++ /dev/null
-/*
- * arch/sh/kernel/cpu/sh4a/sleep-sh_mobile.S
- *
- * Sleep mode and Standby modes support for SuperH Mobile
- *
- * Copyright (C) 2009 Magnus Damm
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#include <linux/sys.h>
-#include <linux/errno.h>
-#include <linux/linkage.h>
-#include <asm/asm-offsets.h>
-#include <asm/suspend.h>
-
-/* manage self-refresh and enter standby mode.
- * this code will be copied to on-chip memory and executed from there.
- */
-
- .balign 4096,0,4096
-ENTRY(sh_mobile_standby)
- mov r4, r0
-
- tst #SUSP_SH_SF, r0
- bt skip_set_sf
-
- /* SDRAM: disable power down and put in self-refresh mode */
- mov.l 1f, r4
- mov.l 2f, r1
- mov.l @r4, r2
- or r1, r2
- mov.l 3f, r3
- and r3, r2
- mov.l r2, @r4
-
-skip_set_sf:
- tst #SUSP_SH_SLEEP, r0
- bt test_standby
-
- /* set mode to "sleep mode" */
- bra do_sleep
- mov #0x00, r1
-
-test_standby:
- tst #SUSP_SH_STANDBY, r0
- bt test_rstandby
-
- /* set mode to "software standby mode" */
- bra do_sleep
- mov #0x80, r1
-
-test_rstandby:
- tst #SUSP_SH_RSTANDBY, r0
- bt test_ustandby
-
- /* set mode to "r-standby mode" */
- bra do_sleep
- mov #0x20, r1
-
-test_ustandby:
- tst #SUSP_SH_USTANDBY, r0
- bt done_sleep
-
- /* set mode to "u-standby mode" */
- mov #0x10, r1
-
- /* fall-through */
-
-do_sleep:
- /* setup and enter selected standby mode */
- mov.l 5f, r4
- mov.l r1, @r4
- sleep
-
-done_sleep:
- /* reset standby mode to sleep mode */
- mov.l 5f, r4
- mov #0x00, r1
- mov.l r1, @r4
-
- tst #SUSP_SH_SF, r0
- bt skip_restore_sf
-
- /* SDRAM: set auto-refresh mode */
- mov.l 1f, r4
- mov.l @r4, r2
- mov.l 4f, r3
- and r3, r2
- mov.l r2, @r4
- mov.l 6f, r4
- mov.l 7f, r1
- mov.l 8f, r2
- mov.l @r4, r3
- mov #-1, r4
- add r4, r3
- or r2, r3
- mov.l r3, @r1
-skip_restore_sf:
- rts
- nop
-
- .balign 4
-1: .long 0xfe400008 /* SDCR0 */
-2: .long 0x00000400
-3: .long 0xffff7fff
-4: .long 0xfffffbff
-5: .long 0xa4150020 /* STBCR */
-6: .long 0xfe40001c /* RTCOR */
-7: .long 0xfe400018 /* RTCNT */
-8: .long 0xa55a0000
-
-/* interrupt vector @ 0x600 */
- .balign 0x400,0,0x400
- .long 0xdeadbeef
- .balign 0x200,0,0x200
- /* sh7722 will end up here in sleep mode */
- rte
- nop
-sh_mobile_standby_end:
-
-ENTRY(sh_mobile_standby_size)
- .long sh_mobile_standby_end - sh_mobile_standby
--- /dev/null
+#
+# Makefile for the Linux/SuperH SH-Mobile backends.
+#
+
+# Power Management & Sleep mode
+obj-$(CONFIG_PM) += pm.o sleep.o
--- /dev/null
+/*
+ * arch/sh/kernel/cpu/sh4a/pm-sh_mobile.c
+ *
+ * Power management support code for SuperH Mobile
+ *
+ * Copyright (C) 2009 Magnus Damm
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/suspend.h>
+#include <asm/suspend.h>
+#include <asm/uaccess.h>
+
+/*
+ * Sleep modes available on SuperH Mobile:
+ *
+ * Sleep mode is just plain "sleep" instruction
+ * Sleep Self-Refresh mode is above plus RAM put in Self-Refresh
+ * Standby Self-Refresh mode is above plus stopped clocks
+ */
+#define SUSP_MODE_SLEEP (SUSP_SH_SLEEP)
+#define SUSP_MODE_SLEEP_SF (SUSP_SH_SLEEP | SUSP_SH_SF)
+#define SUSP_MODE_STANDBY_SF (SUSP_SH_STANDBY | SUSP_SH_SF)
+
+/*
+ * The following modes are not there yet:
+ *
+ * R-standby mode is unsupported, but will be added in the future
+ * U-standby mode is low priority since it needs bootloader hacks
+ *
+ * All modes should be tied in with cpuidle. But before that can
+ * happen we need to keep track of enabled hardware blocks so we
+ * can avoid entering sleep modes that stop clocks to hardware
+ * blocks that are in use even though the cpu core is idle.
+ */
+
+extern const unsigned char sh_mobile_standby[];
+extern const unsigned int sh_mobile_standby_size;
+
+static void sh_mobile_call_standby(unsigned long mode)
+{
+ extern void *vbr_base;
+ void *onchip_mem = (void *)0xe5200000; /* ILRAM */
+ void (*standby_onchip_mem)(unsigned long) = onchip_mem;
+
+ /* Note: Wake up from sleep may generate exceptions!
+ * Setup VBR to point to on-chip ram if self-refresh is
+ * going to be used.
+ */
+ if (mode & SUSP_SH_SF)
+ asm volatile("ldc %0, vbr" : : "r" (onchip_mem) : "memory");
+
+ /* Copy the assembly snippet to the otherwise ununsed ILRAM */
+ memcpy(onchip_mem, sh_mobile_standby, sh_mobile_standby_size);
+ wmb();
+ ctrl_barrier();
+
+ /* Let assembly snippet in on-chip memory handle the rest */
+ standby_onchip_mem(mode);
+
+ /* Put VBR back in System RAM again */
+ if (mode & SUSP_SH_SF)
+ asm volatile("ldc %0, vbr" : : "r" (&vbr_base) : "memory");
+}
+
+static int sh_pm_enter(suspend_state_t state)
+{
+ local_irq_disable();
+ set_bl_bit();
+ sh_mobile_call_standby(SUSP_MODE_STANDBY_SF);
+ local_irq_disable();
+ clear_bl_bit();
+ return 0;
+}
+
+static struct platform_suspend_ops sh_pm_ops = {
+ .enter = sh_pm_enter,
+ .valid = suspend_valid_only_mem,
+};
+
+static int __init sh_pm_init(void)
+{
+ suspend_set_ops(&sh_pm_ops);
+ return 0;
+}
+
+late_initcall(sh_pm_init);
--- /dev/null
+/*
+ * arch/sh/kernel/cpu/sh4a/sleep-sh_mobile.S
+ *
+ * Sleep mode and Standby modes support for SuperH Mobile
+ *
+ * Copyright (C) 2009 Magnus Damm
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/sys.h>
+#include <linux/errno.h>
+#include <linux/linkage.h>
+#include <asm/asm-offsets.h>
+#include <asm/suspend.h>
+
+/* manage self-refresh and enter standby mode.
+ * this code will be copied to on-chip memory and executed from there.
+ */
+
+ .balign 4096,0,4096
+ENTRY(sh_mobile_standby)
+ mov r4, r0
+
+ tst #SUSP_SH_SF, r0
+ bt skip_set_sf
+
+ /* SDRAM: disable power down and put in self-refresh mode */
+ mov.l 1f, r4
+ mov.l 2f, r1
+ mov.l @r4, r2
+ or r1, r2
+ mov.l 3f, r3
+ and r3, r2
+ mov.l r2, @r4
+
+skip_set_sf:
+ tst #SUSP_SH_SLEEP, r0
+ bt test_standby
+
+ /* set mode to "sleep mode" */
+ bra do_sleep
+ mov #0x00, r1
+
+test_standby:
+ tst #SUSP_SH_STANDBY, r0
+ bt test_rstandby
+
+ /* set mode to "software standby mode" */
+ bra do_sleep
+ mov #0x80, r1
+
+test_rstandby:
+ tst #SUSP_SH_RSTANDBY, r0
+ bt test_ustandby
+
+ /* set mode to "r-standby mode" */
+ bra do_sleep
+ mov #0x20, r1
+
+test_ustandby:
+ tst #SUSP_SH_USTANDBY, r0
+ bt done_sleep
+
+ /* set mode to "u-standby mode" */
+ mov #0x10, r1
+
+ /* fall-through */
+
+do_sleep:
+ /* setup and enter selected standby mode */
+ mov.l 5f, r4
+ mov.l r1, @r4
+ sleep
+
+done_sleep:
+ /* reset standby mode to sleep mode */
+ mov.l 5f, r4
+ mov #0x00, r1
+ mov.l r1, @r4
+
+ tst #SUSP_SH_SF, r0
+ bt skip_restore_sf
+
+ /* SDRAM: set auto-refresh mode */
+ mov.l 1f, r4
+ mov.l @r4, r2
+ mov.l 4f, r3
+ and r3, r2
+ mov.l r2, @r4
+ mov.l 6f, r4
+ mov.l 7f, r1
+ mov.l 8f, r2
+ mov.l @r4, r3
+ mov #-1, r4
+ add r4, r3
+ or r2, r3
+ mov.l r3, @r1
+skip_restore_sf:
+ rts
+ nop
+
+ .balign 4
+1: .long 0xfe400008 /* SDCR0 */
+2: .long 0x00000400
+3: .long 0xffff7fff
+4: .long 0xfffffbff
+5: .long 0xa4150020 /* STBCR */
+6: .long 0xfe40001c /* RTCOR */
+7: .long 0xfe400018 /* RTCNT */
+8: .long 0xa55a0000
+
+/* interrupt vector @ 0x600 */
+ .balign 0x400,0,0x400
+ .long 0xdeadbeef
+ .balign 0x200,0,0x200
+ /* sh7722 will end up here in sleep mode */
+ rte
+ nop
+sh_mobile_standby_end:
+
+ENTRY(sh_mobile_standby_size)
+ .long sh_mobile_standby_end - sh_mobile_standby
projects / deliverable / linux.git / commitdiff
