.set noat
.align 5
-/* Save all of the processor general registers and go to sleep.
- * A wakeup condition will get us back here to restore the registers.
- */
-LEAF(au1xxx_save_and_sleep)
+
+/* preparatory stuff */
+.macro SETUP_SLEEP
subu sp, PT_SIZE
sw $1, PT_R1(sp)
sw $2, PT_R2(sp)
*/
lui t3, 0xb190 /* sys_xxx */
sw sp, 0x0018(t3)
- la k0, 3f /* resume path */
+ la k0, alchemy_sleep_wakeup /* resume path */
sw k0, 0x001c(t3)
+.endm
- /* Put SDRAM into self refresh: Preload instructions into cache,
- * issue a precharge, auto/self refresh, then sleep commands to it.
- */
+.macro DO_SLEEP
+ /* put power supply and processor to sleep */
+ sw zero, 0x0078(t3) /* sys_slppwr */
+ sync
+ sw zero, 0x007c(t3) /* sys_sleep */
+ sync
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+.endm
+
+/* sleep code for Au1000/Au1100/Au1500 memory controller type */
+LEAF(alchemy_sleep_au1000)
+
+ SETUP_SLEEP
+
+ /* cache following instructions, as memory gets put to sleep */
la t0, 1f
.set mips3
cache 0x14, 0(t0)
.set mips0
1: lui a0, 0xb400 /* mem_xxx */
-#if defined(CONFIG_SOC_AU1000) || defined(CONFIG_SOC_AU1100) || \
- defined(CONFIG_SOC_AU1500)
sw zero, 0x001c(a0) /* Precharge */
sync
sw zero, 0x0020(a0) /* Auto Refresh */
sync
sw zero, 0x0030(a0) /* Sleep */
sync
-#endif
-#if defined(CONFIG_SOC_AU1550) || defined(CONFIG_SOC_AU1200)
+ DO_SLEEP
+
+END(alchemy_sleep_au1000)
+
+/* sleep code for Au1550/Au1200 memory controller type */
+LEAF(alchemy_sleep_au1550)
+
+ SETUP_SLEEP
+
+ /* cache following instructions, as memory gets put to sleep */
+ la t0, 1f
+ .set mips3
+ cache 0x14, 0(t0)
+ cache 0x14, 32(t0)
+ cache 0x14, 64(t0)
+ cache 0x14, 96(t0)
+ .set mips0
+
+1: lui a0, 0xb400 /* mem_xxx */
sw zero, 0x08c0(a0) /* Precharge */
sync
sw zero, 0x08d0(a0) /* Self Refresh */
and t1, t0, t1 /* clear CE[1:0] */
sw t1, 0x0840(a0) /* mem_sdconfiga */
sync
-#endif
- /* put power supply and processor to sleep */
- sw zero, 0x0078(t3) /* sys_slppwr */
- sync
- sw zero, 0x007c(t3) /* sys_sleep */
- sync
- nop
- nop
- nop
- nop
- nop
- nop
- nop
- nop
+ DO_SLEEP
+
+END(alchemy_sleep_au1550)
+
/* This is where we return upon wakeup.
* Reload all of the registers and return.
*/
-3: lw k0, 0x20(sp)
+LEAF(alchemy_sleep_wakeup)
+ lw k0, 0x20(sp)
mtc0 k0, CP0_STATUS
lw k0, 0x1c(sp)
mtc0 k0, CP0_CONTEXT
lw $31, PT_R31(sp)
jr ra
addiu sp, PT_SIZE
-END(au1xxx_save_and_sleep)
+END(alchemy_sleep_wakeup)