14e2277962
while others dislike them being extra commits, let's clean them up once and for all for the existing code. If it's ugly, let it only be ugly once :-) Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5507 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
126 lines
2.1 KiB
PHP
126 lines
2.1 KiB
PHP
/*
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* This is much more of a "Is my SDRAM properly configured?"
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* test than a "Is my SDRAM faulty?" test. Not all bits
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* are tested. -Tyson
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*/
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jmp rt_skip
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#define RAMTEST 1
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#if RAMTEST
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.section ".rom.data"
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rt_test: .string "Testing SDRAM : "
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rt_fill: .string "SDRAM fill:\r\n"
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rt_verify: .string "SDRAM verify:\r\n"
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rt_toomany: .string "Too many errors.\r\n"
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rt_done: .string "Done.\r\n"
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.previous
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#endif
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ramtest:
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#if RAMTEST
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mov %eax, %esi
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mov %ebx, %edi
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mov %esp, %ebp
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CONSOLE_INFO_TX_STRING($rt_test)
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CONSOLE_INFO_TX_HEX32(%esi)
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CONSOLE_INFO_TX_CHAR($'-')
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CONSOLE_INFO_TX_HEX32(%edi)
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CONSOLE_INFO_TX_CHAR($'\r')
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CONSOLE_INFO_TX_CHAR($'\n')
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/* ============== Fill ram block ==== */
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CONSOLE_INFO_TX_STRING($rt_fill)
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mov %esi, %ebx
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1:
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cmp $0, %bx
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jne 2f
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/* Display address being filled */
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/* CONSOLE_INFO_TX_HEX32(arg) will overwrite %ebx with arg */
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CONSOLE_INFO_TX_HEX32(%ebx)
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CONSOLE_INFO_TX_CHAR($'\r')
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2:
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#if i786
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/* Use a non temporal store to go faster and
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* to bypass the cache.
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*/
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movnti %ebx, (%ebx)
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#else
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mov %ebx, (%ebx)
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#endif
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add $4, %ebx
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cmp %edi, %ebx
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jl 1b
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/* Display final address */
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CONSOLE_INFO_TX_HEX32(%edi)
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CONSOLE_INFO_TX_CHAR($'\r')
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CONSOLE_INFO_TX_CHAR($'\n')
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/* ========= Verify ram block ========== */
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CONSOLE_INFO_TX_STRING($rt_verify)
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mov %esi, %ebx
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1:
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cmp $0, %bx
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jne 2f
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/* Display address being tested */
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CONSOLE_INFO_TX_HEX32(%ebx)
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CONSOLE_INFO_TX_CHAR($'\r')
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2:
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cmp %ebx, (%ebx)
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jne 4f
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3:
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add $4, %ebx
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cmp %edi, %ebx
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jl 1b
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/* Display final address */
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CONSOLE_INFO_TX_HEX32(%edi)
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CONSOLE_INFO_TX_CHAR($'\r')
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CONSOLE_INFO_TX_CHAR($'\n')
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jmp 6f
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4:
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/* Display address with error */
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CONSOLE_INFO_TX_HEX32(%ebx)
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CONSOLE_INFO_TX_CHAR($':')
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/* Display data in address with error */
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/* CONSOLE_INFO_TX_HEX32(arg) will overwrite %ebx with arg */
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mov %ebx, %esi
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mov 0(%ebx), %eax
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CONSOLE_INFO_TX_HEX32(%eax)
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mov %esi, %ebx
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CONSOLE_INFO_TX_CHAR($'\r')
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CONSOLE_INFO_TX_CHAR($'\n')
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sub $1, %ecx
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jz 5f
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jmp 3b
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5:
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CONSOLE_INFO_TX_STRING($rt_toomany)
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post_code(0xf1)
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jmp .Lhlt
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6:
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CONSOLE_INFO_TX_STRING($rt_done)
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mov %ebp, %esp
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#endif
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RETSP
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rt_skip:
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