* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
-/*------------------------------------------------------------------------------+ */
-/* */
-/* This source code has been made available to you by IBM on an AS-IS */
-/* basis. Anyone receiving this source is licensed under IBM */
-/* copyrights to use it in any way he or she deems fit, including */
-/* copying it, modifying it, compiling it, and redistributing it either */
-/* with or without modifications. No license under IBM patents or */
-/* patent applications is to be implied by the copyright license. */
-/* */
-/* Any user of this software should understand that IBM cannot provide */
-/* technical support for this software and will not be responsible for */
-/* any consequences resulting from the use of this software. */
-/* */
-/* Any person who transfers this source code or any derivative work */
-/* must include the IBM copyright notice, this paragraph, and the */
-/* preceding two paragraphs in the transferred software. */
-/* */
-/* COPYRIGHT I B M CORPORATION 1995 */
-/* LICENSED MATERIAL - PROGRAM PROPERTY OF I B M */
-/*------------------------------------------------------------------------------- */
+/*------------------------------------------------------------------------------+
+ *
+ * This source code has been made available to you by IBM on an AS-IS
+ * basis. Anyone receiving this source is licensed under IBM
+ * copyrights to use it in any way he or she deems fit, including
+ * copying it, modifying it, compiling it, and redistributing it either
+ * with or without modifications. No license under IBM patents or
+ * patent applications is to be implied by the copyright license.
+ *
+ * Any user of this software should understand that IBM cannot provide
+ * technical support for this software and will not be responsible for
+ * any consequences resulting from the use of this software.
+ *
+ * Any person who transfers this source code or any derivative work
+ * must include the IBM copyright notice, this paragraph, and the
+ * preceding two paragraphs in the transferred software.
+ *
+ * COPYRIGHT I B M CORPORATION 1995
+ * LICENSED MATERIAL - PROGRAM PROPERTY OF I B M
+ *-------------------------------------------------------------------------------
+ */
/* U-Boot - Startup Code for AMCC 4xx PowerPC based Embedded Boards
*
* address and (s)dram will be positioned at address 0
*/
#include <config.h>
-#include <mpc8xx.h>
#include <ppc4xx.h>
#include <version.h>
# endif
#endif /* CFG_INIT_DCACHE_CS */
-#define function_prolog(func_name) .text; \
+#define function_prolog(func_name) .text; \
.align 2; \
.globl func_name; \
func_name:
-#define function_epilog(func_name) .type func_name,@function; \
+#define function_epilog(func_name) .type func_name,@function; \
.size func_name,.-func_name
/* We don't want the MMU yet.
li r1,0x0c00
mtspr ivor8,r1 /* System call */
li r1,0x0a00
- mtspr ivor9,r1 /* Auxiliary Processor unavailable */
+ mtspr ivor9,r1 /* Auxiliary Processor unavailable */
li r1,0x0900
mtspr ivor10,r1 /* Decrementer */
li r1,0x1300
#ifdef CONFIG_440
/* Machine check */
- MCK_EXCEPTION(0x200, MachineCheck, MachineCheckException)
+ MCK_EXCEPTION(0x200, MachineCheck, MachineCheckException)
#else
- CRIT_EXCEPTION(0x200, MachineCheck, MachineCheckException)
+ CRIT_EXCEPTION(0x200, MachineCheck, MachineCheckException)
#endif /* CONFIG_440 */
/* Data Storage exception. */
STD_EXCEPTION(0x800, FPUnavailable, UnknownException)
STD_EXCEPTION(0x900, Decrementer, DecrementerPITException)
STD_EXCEPTION(0xa00, APU, UnknownException)
-#endif
+#endif
STD_EXCEPTION(0xc00, SystemCall, UnknownException)
#ifdef CONFIG_440
*/
lis r3,CFG_OCM_DATA_ADDR@h /* OCM location */
ori r3,r3,CFG_OCM_DATA_ADDR@l
- ori r3,r3,0x8270 /* 32K Offset, 16K for Bank 1, R/W/Enable */
+ ori r3,r3,0x0270 /* 16K for Bank 1, R/W/Enable */
mtdcr ocmplb3cr1,r3 /* Set PLB Access */
ori r3,r3,0x4000 /* Add 0x4000 for bank 2 */
mtdcr ocmplb3cr2,r3 /* Set PLB Access */
isync
- lis r3,CFG_OCM_DATA_ADDR@h /* OCM location */
+ lis r3,CFG_OCM_DATA_ADDR@h /* OCM location */
ori r3,r3,CFG_OCM_DATA_ADDR@l
- ori r3,r3,0x0270 /* 16K for Bank 1, R/W/Enable */
- mtdcr ocmdscr1, r3 /* Set Data Side */
- mtdcr ocmiscr1, r3 /* Set Instruction Side */
+ ori r3,r3,0x0270 /* 16K for Bank 1, R/W/Enable */
+ mtdcr ocmdscr1, r3 /* Set Data Side */
+ mtdcr ocmiscr1, r3 /* Set Instruction Side */
ori r3,r3,0x4000 /* Add 0x4000 for bank 2 */
- mtdcr ocmdscr2, r3 /* Set Data Side */
- mtdcr ocmiscr2, r3 /* Set Instruction Side */
- addis r3,0,0x0800 /* OCM Data Parity Disable - 1 Wait State */
+ mtdcr ocmdscr2, r3 /* Set Data Side */
+ mtdcr ocmiscr2, r3 /* Set Instruction Side */
+ addis r3,0,0x0800 /* OCM Data Parity Disable - 1 Wait State */
mtdcr ocmdsisdpc,r3
isync
mtdcr ocmdscntl, r4 /* set data-side IRAM config */
isync
- lis r3,CFG_OCM_DATA_ADDR@h /* OCM location */
+ lis r3,CFG_OCM_DATA_ADDR@h /* OCM location */
ori r3,r3,CFG_OCM_DATA_ADDR@l
mtdcr ocmdsarc, r3
addis r4, 0, 0xC000 /* OCM data area enabled */
REST_GPR(31, r1)
lwz r2,_NIP(r1) /* Restore environment */
lwz r0,_MSR(r1)
- mtspr csrr0,r2
- mtspr csrr1,r0
+ mtspr csrr0,r2
+ mtspr csrr1,r0
lwz r0,GPR0(r1)
lwz r2,GPR2(r1)
lwz r1,GPR1(r1)
#ifdef CONFIG_440
mck_return:
- mfmsr r28 /* Disable interrupts */
- li r4,0
- ori r4,r4,MSR_EE
- andc r28,r28,r4
- SYNC /* Some chip revs need this... */
- mtmsr r28
- SYNC
- lwz r2,_CTR(r1)
- lwz r0,_LINK(r1)
- mtctr r2
- mtlr r0
- lwz r2,_XER(r1)
- lwz r0,_CCR(r1)
- mtspr XER,r2
- mtcrf 0xFF,r0
- REST_10GPRS(3, r1)
- REST_10GPRS(13, r1)
- REST_8GPRS(23, r1)
- REST_GPR(31, r1)
- lwz r2,_NIP(r1) /* Restore environment */
- lwz r0,_MSR(r1)
- mtspr mcsrr0,r2
- mtspr mcsrr1,r0
- lwz r0,GPR0(r1)
- lwz r2,GPR2(r1)
- lwz r1,GPR1(r1)
- SYNC
- rfmci
+ mfmsr r28 /* Disable interrupts */
+ li r4,0
+ ori r4,r4,MSR_EE
+ andc r28,r28,r4
+ SYNC /* Some chip revs need this... */
+ mtmsr r28
+ SYNC
+ lwz r2,_CTR(r1)
+ lwz r0,_LINK(r1)
+ mtctr r2
+ mtlr r0
+ lwz r2,_XER(r1)
+ lwz r0,_CCR(r1)
+ mtspr XER,r2
+ mtcrf 0xFF,r0
+ REST_10GPRS(3, r1)
+ REST_10GPRS(13, r1)
+ REST_8GPRS(23, r1)
+ REST_GPR(31, r1)
+ lwz r2,_NIP(r1) /* Restore environment */
+ lwz r0,_MSR(r1)
+ mtspr mcsrr0,r2
+ mtspr mcsrr1,r0
+ lwz r0,GPR0(r1)
+ lwz r2,GPR2(r1)
+ lwz r1,GPR1(r1)
+ SYNC
+ rfmci
#endif /* CONFIG_440 */
* NOTE: currently the 440s run with dcache _disabled_ once relocated to DRAM,
* although for some cache-ralated calls stubs have to be provided to satisfy
* symbols resolution.
+ * Icache-related functions are used in POST framework.
*
*/
#ifdef CONFIG_440
.globl dcache_disable
+ .globl icache_disable
+ .globl icache_enable
dcache_disable:
- blr
+icache_disable:
+icache_enable:
+ blr
- .globl dcache_status
+ .globl dcache_status
+ .globl icache_status
dcache_status:
- blr
+icache_status:
+ mr r3, 0
+ blr
#else
flush_dcache:
addis r9,r0,0x0002 /* set mask for EE and CE msr bits */
#ifdef CONFIG_440
li r7, .L_FPUnavailable - _start + _START_OFFSET
- bl trap_reloc
+ bl trap_reloc
li r7, .L_Decrementer - _start + _START_OFFSET
- bl trap_reloc
+ bl trap_reloc
li r7, .L_APU - _start + _START_OFFSET
- bl trap_reloc
-
- li r7, .L_InstructionTLBError - _start + _START_OFFSET
- bl trap_reloc
+ bl trap_reloc
+
+ li r7, .L_InstructionTLBError - _start + _START_OFFSET
+ bl trap_reloc
- li r7, .L_DataTLBError - _start + _START_OFFSET
- bl trap_reloc
+ li r7, .L_DataTLBError - _start + _START_OFFSET
+ bl trap_reloc
#else /* CONFIG_440 */
li r7, .L_PIT - _start + _START_OFFSET
- bl trap_reloc
+ bl trap_reloc
li r7, .L_InstructionTLBMiss - _start + _START_OFFSET
- bl trap_reloc
+ bl trap_reloc
li r7, .L_DataTLBMiss - _start + _START_OFFSET
- bl trap_reloc
+ bl trap_reloc
#endif /* CONFIG_440 */
- li r7, .L_DebugBreakpoint - _start + _START_OFFSET
- bl trap_reloc
+ li r7, .L_DebugBreakpoint - _start + _START_OFFSET
+ bl trap_reloc
#if !defined(CONFIG_440)
addi r7,r0,0x1000 /* set ME bit (Machine Exceptions) */
+----------------------------------------------------------------------------*/
function_prolog(dcbz_area)
rlwinm. r5,r4,0,27,31
- rlwinm r5,r4,27,5,31
- beq ..d_ra2
- addi r5,r5,0x0001
-..d_ra2:mtctr r5
-..d_ag2:dcbz r0,r3
- addi r3,r3,32
- bdnz ..d_ag2
+ rlwinm r5,r4,27,5,31
+ beq ..d_ra2
+ addi r5,r5,0x0001
+..d_ra2:mtctr r5
+..d_ag2:dcbz r0,r3
+ addi r3,r3,32
+ bdnz ..d_ag2
sync
blr
function_epilog(dcbz_area)
| dflush. Assume 32K at vector address is cachable.
+----------------------------------------------------------------------------*/
function_prolog(dflush)
- mfmsr r9
- rlwinm r8,r9,0,15,13
- rlwinm r8,r8,0,17,15
- mtmsr r8
- addi r3,r0,0x0000
- mtspr dvlim,r3
- mfspr r3,ivpr
- addi r4,r0,1024
- mtctr r4
+ mfmsr r9
+ rlwinm r8,r9,0,15,13
+ rlwinm r8,r8,0,17,15
+ mtmsr r8
+ addi r3,r0,0x0000
+ mtspr dvlim,r3
+ mfspr r3,ivpr
+ addi r4,r0,1024
+ mtctr r4
..dflush_loop:
- lwz r6,0x0(r3)
- addi r3,r3,32
- bdnz ..dflush_loop
- addi r3,r3,-32
- mtctr r4
-..ag: dcbf r0,r3
- addi r3,r3,-32
- bdnz ..ag
+ lwz r6,0x0(r3)
+ addi r3,r3,32
+ bdnz ..dflush_loop
+ addi r3,r3,-32
+ mtctr r4
+..ag: dcbf r0,r3
+ addi r3,r3,-32
+ bdnz ..ag
sync
- mtmsr r9
+ mtmsr r9
blr
function_epilog(dflush)
#endif /* CONFIG_440 */
projects / oweals / u-boot.git / blobdiff