| 
									
										
										
										
											2007-10-09 12:37:13 -05:00
										 |  |  | /* | 
					
						
							|  |  |  |  * Enter and leave deep sleep state on MPC83xx | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  * Copyright (c) 2006-2008 Freescale Semiconductor, Inc. | 
					
						
							|  |  |  |  * Author: Scott Wood <scottwood@freescale.com>
 | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  * This program is free software; you can redistribute it and/or modify it
 | 
					
						
							|  |  |  |  * under the terms of the GNU General Public License version 2 as published | 
					
						
							|  |  |  |  * by the Free Software Foundation. | 
					
						
							|  |  |  |  */ | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #include <asm/page.h> | 
					
						
							|  |  |  | #include <asm/ppc_asm.h> | 
					
						
							|  |  |  | #include <asm/reg.h> | 
					
						
							|  |  |  | #include <asm/asm-offsets.h> | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #define SS_MEMSAVE	0x00 /* First 8 bytes of RAM */ | 
					
						
							|  |  |  | #define SS_HID		0x08 /* 3 HIDs */ | 
					
						
							|  |  |  | #define SS_IABR		0x14 /* 2 IABRs */ | 
					
						
							|  |  |  | #define SS_IBCR		0x1c | 
					
						
							|  |  |  | #define SS_DABR		0x20 /* 2 DABRs */ | 
					
						
							|  |  |  | #define SS_DBCR		0x28 | 
					
						
							|  |  |  | #define SS_SP		0x2c | 
					
						
							|  |  |  | #define SS_SR		0x30 /* 16 segment registers */ | 
					
						
							|  |  |  | #define SS_R2		0x70 | 
					
						
							|  |  |  | #define SS_MSR		0x74 | 
					
						
							|  |  |  | #define SS_SDR1		0x78 | 
					
						
							|  |  |  | #define SS_LR		0x7c | 
					
						
							|  |  |  | #define SS_SPRG		0x80 /* 4 SPRGs */ | 
					
						
							|  |  |  | #define SS_DBAT		0x90 /* 8 DBATs */ | 
					
						
							|  |  |  | #define SS_IBAT		0xd0 /* 8 IBATs */ | 
					
						
							|  |  |  | #define SS_TB		0x110 | 
					
						
							|  |  |  | #define SS_CR		0x118 | 
					
						
							|  |  |  | #define SS_GPREG	0x11c /* r12-r31 */ | 
					
						
							|  |  |  | #define STATE_SAVE_SIZE 0x16c | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	.section .data | 
					
						
							|  |  |  | 	.align	5
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | mpc83xx_sleep_save_area: | 
					
						
							|  |  |  | 	.space	STATE_SAVE_SIZE
 | 
					
						
							|  |  |  | immrbase: | 
					
						
							|  |  |  | 	.long	0
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	.section .text | 
					
						
							|  |  |  | 	.align	5
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	/* r3 = physical address of IMMR */ | 
					
						
							|  |  |  | _GLOBAL(mpc83xx_enter_deep_sleep) | 
					
						
							|  |  |  | 	lis	r4, immrbase@ha
 | 
					
						
							|  |  |  | 	stw	r3, immrbase@l(r4)
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	/* The first 2 words of memory are used to communicate with the | 
					
						
							|  |  |  | 	 * bootloader, to tell it how to resume. | 
					
						
							|  |  |  | 	 * | 
					
						
							|  |  |  | 	 * The first word is the magic number 0xf5153ae5, and the second | 
					
						
							|  |  |  | 	 * is the pointer to mpc83xx_deep_resume. | 
					
						
							|  |  |  | 	 * | 
					
						
							|  |  |  | 	 * The original content of these two words is saved in SS_MEMSAVE. | 
					
						
							|  |  |  | 	 */ | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lis	r3, mpc83xx_sleep_save_area@h
 | 
					
						
							|  |  |  | 	ori	r3, r3, mpc83xx_sleep_save_area@l
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lis	r4, KERNELBASE@h
 | 
					
						
							|  |  |  | 	lwz	r5, 0(r4) | 
					
						
							|  |  |  | 	lwz	r6, 4(r4) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	stw	r5, SS_MEMSAVE+0(r3) | 
					
						
							|  |  |  | 	stw	r6, SS_MEMSAVE+4(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mfspr	r5, SPRN_HID0 | 
					
						
							|  |  |  | 	mfspr	r6, SPRN_HID1 | 
					
						
							|  |  |  | 	mfspr	r7, SPRN_HID2 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	stw	r5, SS_HID+0(r3) | 
					
						
							|  |  |  | 	stw	r6, SS_HID+4(r3) | 
					
						
							|  |  |  | 	stw	r7, SS_HID+8(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mfspr	r4, SPRN_IABR | 
					
						
							|  |  |  | 	mfspr	r5, SPRN_IABR2 | 
					
						
							|  |  |  | 	mfspr	r6, SPRN_IBCR | 
					
						
							|  |  |  | 	mfspr	r7, SPRN_DABR | 
					
						
							|  |  |  | 	mfspr	r8, SPRN_DABR2 | 
					
						
							|  |  |  | 	mfspr	r9, SPRN_DBCR | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	stw	r4, SS_IABR+0(r3) | 
					
						
							|  |  |  | 	stw	r5, SS_IABR+4(r3) | 
					
						
							|  |  |  | 	stw	r6, SS_IBCR(r3) | 
					
						
							|  |  |  | 	stw	r7, SS_DABR+0(r3) | 
					
						
							|  |  |  | 	stw	r8, SS_DABR+4(r3) | 
					
						
							|  |  |  | 	stw	r9, SS_DBCR(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mfspr	r4, SPRN_SPRG0 | 
					
						
							|  |  |  | 	mfspr	r5, SPRN_SPRG1 | 
					
						
							|  |  |  | 	mfspr	r6, SPRN_SPRG2 | 
					
						
							|  |  |  | 	mfspr	r7, SPRN_SPRG3 | 
					
						
							|  |  |  | 	mfsdr1	r8 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	stw	r4, SS_SPRG+0(r3) | 
					
						
							|  |  |  | 	stw	r5, SS_SPRG+4(r3) | 
					
						
							|  |  |  | 	stw	r6, SS_SPRG+8(r3) | 
					
						
							|  |  |  | 	stw	r7, SS_SPRG+12(r3) | 
					
						
							|  |  |  | 	stw	r8, SS_SDR1(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mfspr	r4, SPRN_DBAT0U | 
					
						
							|  |  |  | 	mfspr	r5, SPRN_DBAT0L | 
					
						
							|  |  |  | 	mfspr	r6, SPRN_DBAT1U | 
					
						
							|  |  |  | 	mfspr	r7, SPRN_DBAT1L | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	stw	r4, SS_DBAT+0x00(r3) | 
					
						
							|  |  |  | 	stw	r5, SS_DBAT+0x04(r3) | 
					
						
							|  |  |  | 	stw	r6, SS_DBAT+0x08(r3) | 
					
						
							|  |  |  | 	stw	r7, SS_DBAT+0x0c(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mfspr	r4, SPRN_DBAT2U | 
					
						
							|  |  |  | 	mfspr	r5, SPRN_DBAT2L | 
					
						
							|  |  |  | 	mfspr	r6, SPRN_DBAT3U | 
					
						
							|  |  |  | 	mfspr	r7, SPRN_DBAT3L | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	stw	r4, SS_DBAT+0x10(r3) | 
					
						
							|  |  |  | 	stw	r5, SS_DBAT+0x14(r3) | 
					
						
							|  |  |  | 	stw	r6, SS_DBAT+0x18(r3) | 
					
						
							|  |  |  | 	stw	r7, SS_DBAT+0x1c(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mfspr	r4, SPRN_DBAT4U | 
					
						
							|  |  |  | 	mfspr	r5, SPRN_DBAT4L | 
					
						
							|  |  |  | 	mfspr	r6, SPRN_DBAT5U | 
					
						
							|  |  |  | 	mfspr	r7, SPRN_DBAT5L | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	stw	r4, SS_DBAT+0x20(r3) | 
					
						
							|  |  |  | 	stw	r5, SS_DBAT+0x24(r3) | 
					
						
							|  |  |  | 	stw	r6, SS_DBAT+0x28(r3) | 
					
						
							|  |  |  | 	stw	r7, SS_DBAT+0x2c(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mfspr	r4, SPRN_DBAT6U | 
					
						
							|  |  |  | 	mfspr	r5, SPRN_DBAT6L | 
					
						
							|  |  |  | 	mfspr	r6, SPRN_DBAT7U | 
					
						
							|  |  |  | 	mfspr	r7, SPRN_DBAT7L | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	stw	r4, SS_DBAT+0x30(r3) | 
					
						
							|  |  |  | 	stw	r5, SS_DBAT+0x34(r3) | 
					
						
							|  |  |  | 	stw	r6, SS_DBAT+0x38(r3) | 
					
						
							|  |  |  | 	stw	r7, SS_DBAT+0x3c(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mfspr	r4, SPRN_IBAT0U | 
					
						
							|  |  |  | 	mfspr	r5, SPRN_IBAT0L | 
					
						
							|  |  |  | 	mfspr	r6, SPRN_IBAT1U | 
					
						
							|  |  |  | 	mfspr	r7, SPRN_IBAT1L | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	stw	r4, SS_IBAT+0x00(r3) | 
					
						
							|  |  |  | 	stw	r5, SS_IBAT+0x04(r3) | 
					
						
							|  |  |  | 	stw	r6, SS_IBAT+0x08(r3) | 
					
						
							|  |  |  | 	stw	r7, SS_IBAT+0x0c(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mfspr	r4, SPRN_IBAT2U | 
					
						
							|  |  |  | 	mfspr	r5, SPRN_IBAT2L | 
					
						
							|  |  |  | 	mfspr	r6, SPRN_IBAT3U | 
					
						
							|  |  |  | 	mfspr	r7, SPRN_IBAT3L | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	stw	r4, SS_IBAT+0x10(r3) | 
					
						
							|  |  |  | 	stw	r5, SS_IBAT+0x14(r3) | 
					
						
							|  |  |  | 	stw	r6, SS_IBAT+0x18(r3) | 
					
						
							|  |  |  | 	stw	r7, SS_IBAT+0x1c(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mfspr	r4, SPRN_IBAT4U | 
					
						
							|  |  |  | 	mfspr	r5, SPRN_IBAT4L | 
					
						
							|  |  |  | 	mfspr	r6, SPRN_IBAT5U | 
					
						
							|  |  |  | 	mfspr	r7, SPRN_IBAT5L | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	stw	r4, SS_IBAT+0x20(r3) | 
					
						
							|  |  |  | 	stw	r5, SS_IBAT+0x24(r3) | 
					
						
							|  |  |  | 	stw	r6, SS_IBAT+0x28(r3) | 
					
						
							|  |  |  | 	stw	r7, SS_IBAT+0x2c(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mfspr	r4, SPRN_IBAT6U | 
					
						
							|  |  |  | 	mfspr	r5, SPRN_IBAT6L | 
					
						
							|  |  |  | 	mfspr	r6, SPRN_IBAT7U | 
					
						
							|  |  |  | 	mfspr	r7, SPRN_IBAT7L | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	stw	r4, SS_IBAT+0x30(r3) | 
					
						
							|  |  |  | 	stw	r5, SS_IBAT+0x34(r3) | 
					
						
							|  |  |  | 	stw	r6, SS_IBAT+0x38(r3) | 
					
						
							|  |  |  | 	stw	r7, SS_IBAT+0x3c(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mfmsr	r4 | 
					
						
							|  |  |  | 	mflr	r5 | 
					
						
							|  |  |  | 	mfcr	r6 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	stw	r4, SS_MSR(r3) | 
					
						
							|  |  |  | 	stw	r5, SS_LR(r3) | 
					
						
							|  |  |  | 	stw	r6, SS_CR(r3) | 
					
						
							|  |  |  | 	stw	r1, SS_SP(r3) | 
					
						
							|  |  |  | 	stw	r2, SS_R2(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 1:	mftbu	r4 | 
					
						
							|  |  |  | 	mftb	r5 | 
					
						
							|  |  |  | 	mftbu	r6 | 
					
						
							|  |  |  | 	cmpw	r4, r6 | 
					
						
							|  |  |  | 	bne	1b | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	stw	r4, SS_TB+0(r3) | 
					
						
							|  |  |  | 	stw	r5, SS_TB+4(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	stmw	r12, SS_GPREG(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	li	r4, 0 | 
					
						
							|  |  |  | 	addi	r6, r3, SS_SR-4 | 
					
						
							|  |  |  | 1:	mfsrin	r5, r4 | 
					
						
							|  |  |  | 	stwu	r5, 4(r6) | 
					
						
							|  |  |  | 	addis	r4, r4, 0x1000 | 
					
						
							|  |  |  | 	cmpwi	r4, 0 | 
					
						
							|  |  |  | 	bne	1b | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	/* Disable machine checks and critical exceptions */ | 
					
						
							|  |  |  | 	mfmsr	r4 | 
					
						
							|  |  |  | 	rlwinm	r4, r4, 0, ~MSR_CE | 
					
						
							|  |  |  | 	rlwinm	r4, r4, 0, ~MSR_ME | 
					
						
							|  |  |  | 	mtmsr	r4 | 
					
						
							|  |  |  | 	isync | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #define TMP_VIRT_IMMR		0xf0000000 | 
					
						
							|  |  |  | #define DEFAULT_IMMR_VALUE	0xff400000 | 
					
						
							|  |  |  | #define IMMRBAR_BASE		0x0000 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lis	r4, immrbase@ha
 | 
					
						
							|  |  |  | 	lwz	r4, immrbase@l(r4)
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	/* Use DBAT0 to address the current IMMR space */ | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	ori	r4, r4, 0x002a | 
					
						
							|  |  |  | 	mtspr	SPRN_DBAT0L, r4 | 
					
						
							|  |  |  | 	lis	r8, TMP_VIRT_IMMR@h
 | 
					
						
							| 
									
										
										
											
												tree-wide: fix comment/printk typos
"gadget", "through", "command", "maintain", "maintain", "controller", "address",
"between", "initiali[zs]e", "instead", "function", "select", "already",
"equal", "access", "management", "hierarchy", "registration", "interest",
"relative", "memory", "offset", "already",
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
											
										 
											2010-11-01 15:38:34 -04:00
										 |  |  | 	ori	r4, r8, 0x001e	/* 1 MByte accessible from Kernel Space only */ | 
					
						
							| 
									
										
										
										
											2007-10-09 12:37:13 -05:00
										 |  |  | 	mtspr	SPRN_DBAT0U, r4 | 
					
						
							|  |  |  | 	isync | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	/* Use DBAT1 to address the original IMMR space */ | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lis	r4, DEFAULT_IMMR_VALUE@h
 | 
					
						
							|  |  |  | 	ori	r4, r4, 0x002a | 
					
						
							|  |  |  | 	mtspr	SPRN_DBAT1L, r4 | 
					
						
							|  |  |  | 	lis	r9, (TMP_VIRT_IMMR + 0x01000000)@h
 | 
					
						
							| 
									
										
										
											
												tree-wide: fix comment/printk typos
"gadget", "through", "command", "maintain", "maintain", "controller", "address",
"between", "initiali[zs]e", "instead", "function", "select", "already",
"equal", "access", "management", "hierarchy", "registration", "interest",
"relative", "memory", "offset", "already",
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
											
										 
											2010-11-01 15:38:34 -04:00
										 |  |  | 	ori	r4, r9, 0x001e	/* 1 MByte accessible from Kernel Space only */ | 
					
						
							| 
									
										
										
										
											2007-10-09 12:37:13 -05:00
										 |  |  | 	mtspr	SPRN_DBAT1U, r4 | 
					
						
							|  |  |  | 	isync | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	/* Use DBAT2 to address the beginning of RAM.  This isn't done | 
					
						
							|  |  |  | 	 * using the normal virtual mapping, because with page debugging | 
					
						
							|  |  |  | 	 * enabled it will be read-only. | 
					
						
							|  |  |  | 	 */ | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	li	r4, 0x0002 | 
					
						
							|  |  |  | 	mtspr	SPRN_DBAT2L, r4 | 
					
						
							|  |  |  | 	lis	r4, KERNELBASE@h
 | 
					
						
							| 
									
										
										
											
												tree-wide: fix comment/printk typos
"gadget", "through", "command", "maintain", "maintain", "controller", "address",
"between", "initiali[zs]e", "instead", "function", "select", "already",
"equal", "access", "management", "hierarchy", "registration", "interest",
"relative", "memory", "offset", "already",
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
											
										 
											2010-11-01 15:38:34 -04:00
										 |  |  | 	ori	r4, r4, 0x001e	/* 1 MByte accessible from Kernel Space only */ | 
					
						
							| 
									
										
										
										
											2007-10-09 12:37:13 -05:00
										 |  |  | 	mtspr	SPRN_DBAT2U, r4 | 
					
						
							|  |  |  | 	isync | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	/* Flush the cache with our BAT, as there will be TLB misses | 
					
						
							|  |  |  | 	 * otherwise if page debugging is enabled, and these misses | 
					
						
							|  |  |  | 	 * will disturb the PLRU algorithm. | 
					
						
							|  |  |  | 	 */ | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	bl	__flush_disable_L1 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	/* Keep the i-cache enabled, so the hack below for low-boot | 
					
						
							|  |  |  | 	 * flash will work. | 
					
						
							|  |  |  | 	 */ | 
					
						
							|  |  |  | 	mfspr	r3, SPRN_HID0 | 
					
						
							|  |  |  | 	ori	r3, r3, HID0_ICE | 
					
						
							|  |  |  | 	mtspr	SPRN_HID0, r3 | 
					
						
							|  |  |  | 	isync | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lis	r6, 0xf515 | 
					
						
							|  |  |  | 	ori	r6, r6, 0x3ae5 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lis	r7, mpc83xx_deep_resume@h
 | 
					
						
							|  |  |  | 	ori	r7, r7, mpc83xx_deep_resume@l
 | 
					
						
							|  |  |  | 	tophys(r7, r7) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lis	r5, KERNELBASE@h
 | 
					
						
							|  |  |  | 	stw	r6, 0(r5) | 
					
						
							|  |  |  | 	stw	r7, 4(r5) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	/* Reset BARs */ | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	li	r4, 0 | 
					
						
							|  |  |  | 	stw	r4, 0x0024(r8) | 
					
						
							|  |  |  | 	stw	r4, 0x002c(r8) | 
					
						
							|  |  |  | 	stw	r4, 0x0034(r8) | 
					
						
							|  |  |  | 	stw	r4, 0x003c(r8) | 
					
						
							|  |  |  | 	stw	r4, 0x0064(r8) | 
					
						
							|  |  |  | 	stw	r4, 0x006c(r8) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	/* Rev 1 of the 8313 has problems with wakeup events that are | 
					
						
							|  |  |  | 	 * pending during the transition to deep sleep state (such as if | 
					
						
							|  |  |  | 	 * the PCI host sets the state to D3 and then D0 in rapid | 
					
						
							|  |  |  | 	 * succession).  This check shrinks the race window somewhat. | 
					
						
							|  |  |  | 	 * | 
					
						
							|  |  |  | 	 * See erratum PCI23, though the problem is not limited | 
					
						
							|  |  |  | 	 * to PCI. | 
					
						
							|  |  |  | 	 */ | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lwz	r3, 0x0b04(r8) | 
					
						
							|  |  |  | 	andi.	r3, r3, 1 | 
					
						
							|  |  |  | 	bne-	mpc83xx_deep_resume | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	/* Move IMMR back to the default location, following the | 
					
						
							|  |  |  | 	 * procedure specified in the MPC8313 manual. | 
					
						
							|  |  |  | 	 */ | 
					
						
							|  |  |  | 	lwz	r4, IMMRBAR_BASE(r8) | 
					
						
							|  |  |  | 	isync | 
					
						
							|  |  |  | 	lis	r4, DEFAULT_IMMR_VALUE@h
 | 
					
						
							|  |  |  | 	stw	r4, IMMRBAR_BASE(r8) | 
					
						
							|  |  |  | 	lis	r4, KERNELBASE@h
 | 
					
						
							|  |  |  | 	lwz	r4, 0(r4) | 
					
						
							|  |  |  | 	isync | 
					
						
							|  |  |  | 	lwz	r4, IMMRBAR_BASE(r9) | 
					
						
							|  |  |  | 	mr	r8, r9 | 
					
						
							|  |  |  | 	isync | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	/* Check the Reset Configuration Word to see whether flash needs | 
					
						
							|  |  |  | 	 * to be mapped at a low address or a high address. | 
					
						
							|  |  |  | 	 */ | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lwz	r4, 0x0904(r8) | 
					
						
							|  |  |  | 	andis.	r4, r4, 0x0400 | 
					
						
							|  |  |  | 	li	r4, 0 | 
					
						
							|  |  |  | 	beq	boot_low | 
					
						
							|  |  |  | 	lis	r4, 0xff80 | 
					
						
							|  |  |  | boot_low: | 
					
						
							|  |  |  | 	stw	r4, 0x0020(r8) | 
					
						
							|  |  |  | 	lis	r7, 0x8000 | 
					
						
							|  |  |  | 	ori	r7, r7, 0x0016 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mfspr	r5, SPRN_HID0 | 
					
						
							|  |  |  | 	rlwinm	r5, r5, 0, ~(HID0_DOZE | HID0_NAP) | 
					
						
							|  |  |  | 	oris	r5, r5, HID0_SLEEP@h
 | 
					
						
							|  |  |  | 	mtspr	SPRN_HID0, r5 | 
					
						
							|  |  |  | 	isync | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mfmsr	r5 | 
					
						
							|  |  |  | 	oris	r5, r5, MSR_POW@h
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	/* Enable the flash mapping at the appropriate address.  This | 
					
						
							|  |  |  | 	 * mapping will override the RAM mapping if booting low, so there's | 
					
						
							|  |  |  | 	 * no need to disable the latter.  This must be done inside the same | 
					
						
							|  |  |  | 	 * cache line as setting MSR_POW, so that no instruction fetches | 
					
						
							|  |  |  | 	 * from RAM happen after the flash mapping is turned on. | 
					
						
							|  |  |  | 	 */ | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	.align	5
 | 
					
						
							|  |  |  | 	stw	r7, 0x0024(r8) | 
					
						
							|  |  |  | 	sync | 
					
						
							|  |  |  | 	isync | 
					
						
							|  |  |  | 	mtmsr	r5 | 
					
						
							|  |  |  | 	isync | 
					
						
							|  |  |  | 1:	b	1b | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | mpc83xx_deep_resume: | 
					
						
							|  |  |  | 	lis	r4, 1f@h
 | 
					
						
							|  |  |  | 	ori	r4, r4, 1f@l
 | 
					
						
							|  |  |  | 	tophys(r4, r4) | 
					
						
							|  |  |  | 	mtsrr0	r4 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mfmsr	r4 | 
					
						
							|  |  |  | 	rlwinm	r4, r4, 0, ~(MSR_IR | MSR_DR) | 
					
						
							|  |  |  | 	mtsrr1	r4 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	rfi | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 1:	tlbia | 
					
						
							|  |  |  | 	bl	__inval_enable_L1 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lis	r3, mpc83xx_sleep_save_area@h
 | 
					
						
							|  |  |  | 	ori	r3, r3, mpc83xx_sleep_save_area@l
 | 
					
						
							|  |  |  | 	tophys(r3, r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lwz	r5, SS_MEMSAVE+0(r3) | 
					
						
							|  |  |  | 	lwz	r6, SS_MEMSAVE+4(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	stw	r5, 0(0) | 
					
						
							|  |  |  | 	stw	r6, 4(0) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lwz	r5, SS_HID+0(r3) | 
					
						
							|  |  |  | 	lwz	r6, SS_HID+4(r3) | 
					
						
							|  |  |  | 	lwz	r7, SS_HID+8(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mtspr	SPRN_HID0, r5 | 
					
						
							|  |  |  | 	mtspr	SPRN_HID1, r6 | 
					
						
							|  |  |  | 	mtspr	SPRN_HID2, r7 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lwz	r4, SS_IABR+0(r3) | 
					
						
							|  |  |  | 	lwz	r5, SS_IABR+4(r3) | 
					
						
							|  |  |  | 	lwz	r6, SS_IBCR(r3) | 
					
						
							|  |  |  | 	lwz	r7, SS_DABR+0(r3) | 
					
						
							|  |  |  | 	lwz	r8, SS_DABR+4(r3) | 
					
						
							|  |  |  | 	lwz	r9, SS_DBCR(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mtspr	SPRN_IABR, r4 | 
					
						
							|  |  |  | 	mtspr	SPRN_IABR2, r5 | 
					
						
							|  |  |  | 	mtspr	SPRN_IBCR, r6 | 
					
						
							|  |  |  | 	mtspr	SPRN_DABR, r7 | 
					
						
							|  |  |  | 	mtspr	SPRN_DABR2, r8 | 
					
						
							|  |  |  | 	mtspr	SPRN_DBCR, r9 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	li	r4, 0 | 
					
						
							|  |  |  | 	addi	r6, r3, SS_SR-4 | 
					
						
							|  |  |  | 1:	lwzu	r5, 4(r6) | 
					
						
							|  |  |  | 	mtsrin	r5, r4 | 
					
						
							|  |  |  | 	addis	r4, r4, 0x1000 | 
					
						
							|  |  |  | 	cmpwi	r4, 0 | 
					
						
							|  |  |  | 	bne	1b | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lwz	r4, SS_DBAT+0x00(r3) | 
					
						
							|  |  |  | 	lwz	r5, SS_DBAT+0x04(r3) | 
					
						
							|  |  |  | 	lwz	r6, SS_DBAT+0x08(r3) | 
					
						
							|  |  |  | 	lwz	r7, SS_DBAT+0x0c(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mtspr	SPRN_DBAT0U, r4 | 
					
						
							|  |  |  | 	mtspr	SPRN_DBAT0L, r5 | 
					
						
							|  |  |  | 	mtspr	SPRN_DBAT1U, r6 | 
					
						
							|  |  |  | 	mtspr	SPRN_DBAT1L, r7 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lwz	r4, SS_DBAT+0x10(r3) | 
					
						
							|  |  |  | 	lwz	r5, SS_DBAT+0x14(r3) | 
					
						
							|  |  |  | 	lwz	r6, SS_DBAT+0x18(r3) | 
					
						
							|  |  |  | 	lwz	r7, SS_DBAT+0x1c(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mtspr	SPRN_DBAT2U, r4 | 
					
						
							|  |  |  | 	mtspr	SPRN_DBAT2L, r5 | 
					
						
							|  |  |  | 	mtspr	SPRN_DBAT3U, r6 | 
					
						
							|  |  |  | 	mtspr	SPRN_DBAT3L, r7 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lwz	r4, SS_DBAT+0x20(r3) | 
					
						
							|  |  |  | 	lwz	r5, SS_DBAT+0x24(r3) | 
					
						
							|  |  |  | 	lwz	r6, SS_DBAT+0x28(r3) | 
					
						
							|  |  |  | 	lwz	r7, SS_DBAT+0x2c(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mtspr	SPRN_DBAT4U, r4 | 
					
						
							|  |  |  | 	mtspr	SPRN_DBAT4L, r5 | 
					
						
							|  |  |  | 	mtspr	SPRN_DBAT5U, r6 | 
					
						
							|  |  |  | 	mtspr	SPRN_DBAT5L, r7 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lwz	r4, SS_DBAT+0x30(r3) | 
					
						
							|  |  |  | 	lwz	r5, SS_DBAT+0x34(r3) | 
					
						
							|  |  |  | 	lwz	r6, SS_DBAT+0x38(r3) | 
					
						
							|  |  |  | 	lwz	r7, SS_DBAT+0x3c(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mtspr	SPRN_DBAT6U, r4 | 
					
						
							|  |  |  | 	mtspr	SPRN_DBAT6L, r5 | 
					
						
							|  |  |  | 	mtspr	SPRN_DBAT7U, r6 | 
					
						
							|  |  |  | 	mtspr	SPRN_DBAT7L, r7 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lwz	r4, SS_IBAT+0x00(r3) | 
					
						
							|  |  |  | 	lwz	r5, SS_IBAT+0x04(r3) | 
					
						
							|  |  |  | 	lwz	r6, SS_IBAT+0x08(r3) | 
					
						
							|  |  |  | 	lwz	r7, SS_IBAT+0x0c(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mtspr	SPRN_IBAT0U, r4 | 
					
						
							|  |  |  | 	mtspr	SPRN_IBAT0L, r5 | 
					
						
							|  |  |  | 	mtspr	SPRN_IBAT1U, r6 | 
					
						
							|  |  |  | 	mtspr	SPRN_IBAT1L, r7 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lwz	r4, SS_IBAT+0x10(r3) | 
					
						
							|  |  |  | 	lwz	r5, SS_IBAT+0x14(r3) | 
					
						
							|  |  |  | 	lwz	r6, SS_IBAT+0x18(r3) | 
					
						
							|  |  |  | 	lwz	r7, SS_IBAT+0x1c(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mtspr	SPRN_IBAT2U, r4 | 
					
						
							|  |  |  | 	mtspr	SPRN_IBAT2L, r5 | 
					
						
							|  |  |  | 	mtspr	SPRN_IBAT3U, r6 | 
					
						
							|  |  |  | 	mtspr	SPRN_IBAT3L, r7 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lwz	r4, SS_IBAT+0x20(r3) | 
					
						
							|  |  |  | 	lwz	r5, SS_IBAT+0x24(r3) | 
					
						
							|  |  |  | 	lwz	r6, SS_IBAT+0x28(r3) | 
					
						
							|  |  |  | 	lwz	r7, SS_IBAT+0x2c(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mtspr	SPRN_IBAT4U, r4 | 
					
						
							|  |  |  | 	mtspr	SPRN_IBAT4L, r5 | 
					
						
							|  |  |  | 	mtspr	SPRN_IBAT5U, r6 | 
					
						
							|  |  |  | 	mtspr	SPRN_IBAT5L, r7 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lwz	r4, SS_IBAT+0x30(r3) | 
					
						
							|  |  |  | 	lwz	r5, SS_IBAT+0x34(r3) | 
					
						
							|  |  |  | 	lwz	r6, SS_IBAT+0x38(r3) | 
					
						
							|  |  |  | 	lwz	r7, SS_IBAT+0x3c(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mtspr	SPRN_IBAT6U, r4 | 
					
						
							|  |  |  | 	mtspr	SPRN_IBAT6L, r5 | 
					
						
							|  |  |  | 	mtspr	SPRN_IBAT7U, r6 | 
					
						
							|  |  |  | 	mtspr	SPRN_IBAT7L, r7 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lwz	r4, SS_SPRG+0(r3) | 
					
						
							|  |  |  | 	lwz	r5, SS_SPRG+4(r3) | 
					
						
							|  |  |  | 	lwz	r6, SS_SPRG+8(r3) | 
					
						
							|  |  |  | 	lwz	r7, SS_SPRG+12(r3) | 
					
						
							|  |  |  | 	lwz	r8, SS_SDR1(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mtspr	SPRN_SPRG0, r4 | 
					
						
							|  |  |  | 	mtspr	SPRN_SPRG1, r5 | 
					
						
							|  |  |  | 	mtspr	SPRN_SPRG2, r6 | 
					
						
							|  |  |  | 	mtspr	SPRN_SPRG3, r7 | 
					
						
							|  |  |  | 	mtsdr1	r8 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lwz	r4, SS_MSR(r3) | 
					
						
							|  |  |  | 	lwz	r5, SS_LR(r3) | 
					
						
							|  |  |  | 	lwz	r6, SS_CR(r3) | 
					
						
							|  |  |  | 	lwz	r1, SS_SP(r3) | 
					
						
							|  |  |  | 	lwz	r2, SS_R2(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mtsrr1	r4 | 
					
						
							|  |  |  | 	mtsrr0	r5 | 
					
						
							|  |  |  | 	mtcr	r6 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	li	r4, 0 | 
					
						
							|  |  |  | 	mtspr	SPRN_TBWL, r4 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lwz	r4, SS_TB+0(r3) | 
					
						
							|  |  |  | 	lwz	r5, SS_TB+4(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	mtspr	SPRN_TBWU, r4 | 
					
						
							|  |  |  | 	mtspr	SPRN_TBWL, r5 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	lmw	r12, SS_GPREG(r3) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	/* Kick decrementer */ | 
					
						
							|  |  |  | 	li	r0, 1 | 
					
						
							|  |  |  | 	mtdec	r0 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	rfi |