Fix llshell

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5206 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 125 insertions, 0 deletions

diff --git a/src/arch/i386/llshell/ramtest.inc b/src/arch/i386/llshell/ramtest.inc
new file mode 100644
index 0000000000..dfe06adf71
--- /dev/null
+++ b/src/arch/i386/llshell/ramtest.inc
@@ -0,0 +1,125 @@
+	/*
+	 * This is much more of a "Is my SDRAM properly configured?"
+	 * test than a "Is my SDRAM faulty?" test.  Not all bits
+	 * are tested.   -Tyson
+	 */
+
+	jmp	rt_skip
+#define RAMTEST 1
+#if RAMTEST	
+	.section ".rom.data"
+
+rt_test:	.string "Testing SDRAM : "
+rt_fill:	.string "SDRAM fill:\r\n"
+rt_verify:	.string "SDRAM verify:\r\n"
+rt_toomany:	.string "Too many errors.\r\n"
+rt_done:	.string "Done.\r\n"
+	.previous
+#endif
+	
+ramtest:
+#if RAMTEST
+	mov %eax, %esi
+	mov %ebx, %edi
+	mov %esp, %ebp
+
+	CONSOLE_INFO_TX_STRING($rt_test)
+	CONSOLE_INFO_TX_HEX32(%esi)
+	CONSOLE_INFO_TX_CHAR($'-')
+	CONSOLE_INFO_TX_HEX32(%edi)
+	CONSOLE_INFO_TX_CHAR($'\r')
+	CONSOLE_INFO_TX_CHAR($'\n')
+
+	/* ============== Fill ram block ==== */
+
+	CONSOLE_INFO_TX_STRING($rt_fill)
+
+	mov %esi, %ebx
+1:
+	cmp $0, %bx
+	jne 2f
+
+	/* Display address being filled */
+	/* CONSOLE_INFO_TX_HEX32(arg) will overwrite %ebx with arg */
+	
+	CONSOLE_INFO_TX_HEX32(%ebx)
+	CONSOLE_INFO_TX_CHAR($'\r')
+2:
+#if	i786
+	/* Use a non temporal store to go faster and
+	 * to bypass the cache.
+	 */
+	movnti	%ebx, (%ebx)
+#else
+	mov %ebx, (%ebx)
+#endif
+	add $4, %ebx
+	cmp %edi, %ebx
+	jl 1b
+
+	/* Display final address */
+
+	CONSOLE_INFO_TX_HEX32(%edi)
+	CONSOLE_INFO_TX_CHAR($'\r')
+	CONSOLE_INFO_TX_CHAR($'\n')
+
+	/* ========= Verify ram block ========== */
+
+	CONSOLE_INFO_TX_STRING($rt_verify)
+	mov %esi, %ebx
+
+1:
+	cmp $0, %bx
+	jne 2f
+
+	/* Display address being tested */
+
+	CONSOLE_INFO_TX_HEX32(%ebx)
+	CONSOLE_INFO_TX_CHAR($'\r')
+2:
+	cmp %ebx, (%ebx)
+	jne 4f
+3:
+	add $4, %ebx
+	cmp %edi, %ebx
+	jl 1b
+
+	/* Display final address */
+	CONSOLE_INFO_TX_HEX32(%edi)
+	CONSOLE_INFO_TX_CHAR($'\r')
+	CONSOLE_INFO_TX_CHAR($'\n')
+	jmp 6f
+
+4:
+	/* Display address with error */
+
+	CONSOLE_INFO_TX_HEX32(%ebx)
+	CONSOLE_INFO_TX_CHAR($':')
+
+	/* Display data in address with error */
+
+	/* CONSOLE_INFO_TX_HEX32(arg) will overwrite %ebx with arg */
+
+	mov %ebx, %esi
+	mov 0(%ebx), %eax
+	CONSOLE_INFO_TX_HEX32(%eax)
+	mov %esi, %ebx
+
+	CONSOLE_INFO_TX_CHAR($'\r')
+	CONSOLE_INFO_TX_CHAR($'\n')
+	sub $1, %ecx
+	jz 5f
+	jmp 3b
+5:	
+	CONSOLE_INFO_TX_STRING($rt_toomany)
+	intel_chip_post_macro(0xf1)
+	jmp	.Lhlt
+
+6:
+	CONSOLE_INFO_TX_STRING($rt_done)
+	mov %ebp, %esp
+
+#endif
+	RETSP
+
+rt_skip: