| #define VESTA |
| #include "ppc_40x.h" |
| # |
| .align 2 |
| .text |
| # |
| # added by linguohui |
| .extern initb_ebiu0, initb_config, hdw_init_finish |
| .extern initb_hsmc0, initb_hsmc1, initb_cache |
| # end added |
| .globl HdwInit |
| # |
| HdwInit: |
| # |
| #-----------------------------------------------------------------------* |
| # If we are not executing from the FLASH get out * |
| #-----------------------------------------------------------------------* |
| # SAW keep this or comment out a la Hawthorne? |
| # r3 contains NIP when used with Linux |
| # rlwinm r28, r3, 8, 24, 31 # if MSB == 0xFF -> FLASH address |
| # cmpwi r28, 0xff |
| # bne locn01 |
| # |
| # |
| #------------------------------------------------------------------------ |
| # Init_cpu. Bank registers are setup for the IBM STB. |
| #------------------------------------------------------------------------ |
| # |
| # Setup processor core clock to be driven off chip. This is GPI4 bit |
| # twenty. Setup Open Drain, Output Select, Three-State Control, and |
| # Three-State Select registers. |
| # |
| |
| |
| pb0pesr = 0x054 |
| pb0pear = 0x056 |
| |
| mflr r30 |
| |
| #----------------------------------------------------------------------------- |
| # Vectors will be at 0x1F000000 |
| # Dummy Machine check handler just does RFI before true handler gets installed |
| #----------------------------------------------------------------------------- |
| #if 1 /* xuwentao added*/ |
| #ifdef SDRAM16MB |
| lis r10,0x0000 |
| addi r10,r10,0x0000 |
| #else |
| lis r10,0x1F00 |
| addi r10,r10,0x0000 |
| #endif |
| |
| mtspr evpr,r10 #EVPR: 0x0 or 0x1f000000 depending |
| isync # on SDRAM memory model used. |
| |
| lis r10,0xFFFF # clear PB0_PESR because some |
| ori r10,r10,0xFFFF # transitions from flash,changed by linguohui |
| mtdcr pb0pesr,r10 # to load RAM image via RiscWatch |
| lis r10,0x0000 # cause PB0_PESR machine checks |
| mtdcr pb0pear,r10 |
| addis r10,r10,0x0000 # clear the |
| mtxer r10 # XER just in case... |
| #endif /* xuwentao*/ |
| |
| bl initb_ebiu0 # init EBIU |
| |
| bl initb_config # config PPC and board |
| |
| |
| |
| |
| #------------------------------------------------------------------------ |
| # EVPR setup moved to top of this function. |
| #------------------------------------------------------------------------ |
| # |
| mtlr r30 |
| blr |
| .end |
