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@ -1152,6 +1152,36 @@ _start_cont: |
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/* Setup the stack in initial RAM,could be L2-as-SRAM or L1 dcache*/ |
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lis r3,(CONFIG_SYS_INIT_RAM_ADDR)@h
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ori r3,r3,((CONFIG_SYS_INIT_SP_OFFSET-16)&~0xf)@l /* Align to 16 */
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#ifdef CONFIG_SYS_MALLOC_F_LEN |
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#if CONFIG_SYS_MALLOC_F_LEN + GENERATED_GBL_DATA_SIZE > CONFIG_SYS_INIT_RAM_SIZE |
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#error "CONFIG_SYS_MALLOC_F_LEN too large to fit into initial RAM." |
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#endif |
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/* Leave 16+ byte for back chain termination and NULL return address */ |
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subi r3,r3,((CONFIG_SYS_MALLOC_F_LEN+16+15)&~0xf) |
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#endif |
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/* End of RAM */ |
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lis r4,(CONFIG_SYS_INIT_RAM_ADDR)@h
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ori r4,r4,(CONFIG_SYS_INIT_RAM_SIZE)@l
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li r0,0 |
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1: subi r4,r4,4 |
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stw r0,0(r4) |
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cmplw r4,r3 |
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bne 1b |
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#ifdef CONFIG_SYS_MALLOC_F_LEN |
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lis r4,(CONFIG_SYS_INIT_RAM_ADDR)@h
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ori r4,r4,(CONFIG_SYS_GBL_DATA_OFFSET)@l
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addi r3,r3,16 /* Pre-relocation malloc area */ |
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stw r3,GD_MALLOC_BASE(r4) |
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subi r3,r3,16 |
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#endif |
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li r0,0 |
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stw r0,0(r3) /* Terminate Back Chain */ |
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stw r0,+4(r3) /* NULL return address. */ |
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