[coreboot] [PATCH] flashrom: more accurate debug output and other trival changes

[FENG Yu Ning]

For more information, see ich7 spec(order no. 307013) section 21.1.1 .

Signed-off-by: FENG yu ning <fengyuning1984 at gmail.com>

Index: flashrom/ichspi.c
===================================================================
--- flashrom/ichspi.c	(revision 3781)
+++ flashrom/ichspi.c	(working copy)
@@ -77,7 +77,7 @@
 #define ICH7_REG_SPIS          0x00	/* 16 Bits */
 #define SPIS_SCIP              0x00000001
 #define SPIS_CDS               0x00000004
-#define SPIS_FCERR             0x00000008
+#define SPIS_BAS               0x00000008

 /* VIA SPI is compatible with ICH7, but maxdata
    to transfer is 16 bytes.
@@ -268,8 +268,8 @@

 	/* Assemble SPIS */
 	temp16 = 0;
-	/* clear error status registers */
-	temp16 |= (SPIS_CDS + SPIS_FCERR);
+	/* clear bits indicating command completion status */
+	temp16 |= (SPIS_CDS + SPIS_BAS);
 	REGWRITE16(ICH7_REG_SPIS, temp16);

 	/* Assemble SPIC */
@@ -322,8 +322,8 @@
 		printf_debug("timeout\n");
 	}

-	if ((REGREAD16(ICH7_REG_SPIS) & SPIS_FCERR) != 0) {
-		printf_debug("Transaction error!\n");
+	if ((REGREAD16(ICH7_REG_SPIS) & SPIS_BAS) != 0) {
+		printf_debug("Access blocked!\n");
 		return 1;
 	}
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