diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/mvme5500/start/start.S')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/mvme5500/start/start.S | 40 |
1 files changed, 20 insertions, 20 deletions
diff --git a/c/src/lib/libbsp/powerpc/mvme5500/start/start.S b/c/src/lib/libbsp/powerpc/mvme5500/start/start.S index 41b4d59fdb..720811c364 100644 --- a/c/src/lib/libbsp/powerpc/mvme5500/start/start.S +++ b/c/src/lib/libbsp/powerpc/mvme5500/start/start.S @@ -10,7 +10,7 @@ * found in the file LICENSE in this distribution or at * http://www.rtems.com/license/LICENSE. * - * + * */ #include <rtems/asm.h> @@ -25,7 +25,7 @@ #define KERNELBASE 0x0 #define MEM256MB 0x10000000 - + #define MONITOR_ENTER \ mfmsr r10 ; \ ori r10,r10,MSR_IP ; \ @@ -33,20 +33,20 @@ li r10,0x63 ; \ sc - + .text .globl __rtems_entry_point .type __rtems_entry_point,@function __rtems_entry_point: #ifdef DEBUG_EARLY_START MONITOR_ENTER -#endif - -/* +#endif + +/* * PREP * This is jumped to on prep systems right after the kernel is relocated * to its proper place in memory by the boot loader. The expected layout - * of the regs is: + * of the regs is: * r3: ptr to residual data * r4: initrd_start or if no initrd then 0 * r5: initrd_end - unused if r4 is 0 @@ -56,7 +56,7 @@ __rtems_entry_point: * The Prep boot loader insure that the MMU is currently off... * */ - + mr r31,r3 /* save parameters */ mr r30,r4 mr r29,r5 @@ -69,7 +69,7 @@ __rtems_entry_point: bl flush_tlbs /* * Use the first pair of BAT registers to map the 1st 256MB - * of RAM to KERNELBASE. + * of RAM to KERNELBASE. */ lis r11,KERNELBASE@h ori r11,r11,0x1ffe /* set up BAT0 registers for 604+ */ @@ -92,18 +92,18 @@ __rtems_entry_point: mtspr DBAT1L,r8 /* N.B. 6xx (not 601) have valid */ mtspr DBAT1U,r11 /* bit in upper BAT register */ mtspr IBAT1L,r8 - mtspr IBAT1U,r11 + mtspr IBAT1U,r11 isync /* - * we now have the two 256M of ram mapped with the bats. We are still - * running on the bootloader stack and cannot switch to an RTEMS allocated + * we now have the two 256M of ram mapped with the bats. We are still + * running on the bootloader stack and cannot switch to an RTEMS allocated * init stack before copying the residual data that may have been set just * after rtems_end address. This bug has been experienced on MVME2304. Thank * to Till Straumann <strauman@SLAC.Stanford.EDU> for hunting it and * suggesting the appropriate code. */ - + enter_C_code: bl MMUon bl __eabi /* setup EABI and SYSV environment */ @@ -115,7 +115,7 @@ enter_C_code: mr r4,r30 mr r5,r29 mr r6,r28 - mr r7,r27 + mr r7,r27 bl save_boot_params /* * stack = &__rtems_end + 4096 @@ -129,10 +129,10 @@ enter_C_code: /* pass result of 'save_boot_params' to 'boot_card' in R3 */ bl boot_card bl _return_to_ppcbug - + .globl MMUon .type MMUon,@function -MMUon: +MMUon: mfmsr r0 ori r0,r0, MSR_IP | MSR_RI | MSR_IR | MSR_DR | MSR_EE | MSR_FE0 | MSR_FE1 | MSR_FP #if (PPC_HAS_FPU == 0) @@ -145,10 +145,10 @@ MMUon: mtsrr1 r0 SYNC rfi - + .globl MMUoff .type MMUoff,@function -MMUoff: +MMUoff: mfmsr r0 ori r0,r0,MSR_IR| MSR_DR | MSR_IP mflr r11 @@ -161,14 +161,14 @@ MMUoff: .globl _return_to_ppcbug .type _return_to_ppcbug,@function - + _return_to_ppcbug: mflr r30 bl MMUoff MONITOR_ENTER bl MMUon mtctr r30 - bctr + bctr flush_tlbs: lis r20, 0x1000 |