From: Spencer Oliver <ntfreak@users.sourceforge.net>
Date: Wed, 6 Jan 2010 20:24:31 +0000 (+0000)
Subject: MIPS: fastdata bulk write fallback
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=2d450b90333b01fbd85570e5d881c3a795038744;p=fw%2Fopenocd

MIPS: fastdata bulk write fallback

If fastdata access fails, then fallback to default mips_m4k_write_memory
Remove unnecessary fastdata loader verify check

Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
---

diff --git a/src/target/mips32_pracc.c b/src/target/mips32_pracc.c
index 26d5a6b7d..ac1d1b398 100644
--- a/src/target/mips32_pracc.c
+++ b/src/target/mips32_pracc.c
@@ -968,15 +968,7 @@ int mips32_pracc_fastdata_xfer(struct mips_ejtag *ejtag_info, struct working_are
 	/* write program into RAM */
 	mips32_pracc_write_mem32(ejtag_info, source->address, ARRAY_SIZE(handler_code), handler_code);
 
-	/* quick verify RAM is working */
-	mips32_pracc_read_u32(ejtag_info, source->address, &val);
-	if (val != handler_code[0])
-	{
-		LOG_ERROR("fastdata handler verify failed\n");
-		return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
-	}
-
-	LOG_INFO("%s using 0x%.8x for write handler\n", __func__, source->address);
+	LOG_DEBUG("%s using 0x%.8x for write handler\n", __func__, source->address);
 
 	jmp_code[1] |= UPPER16(source->address);
 	jmp_code[2] |= LOWER16(source->address);
diff --git a/src/target/mips_m4k.c b/src/target/mips_m4k.c
index 4adc1f193..312fc09cf 100644
--- a/src/target/mips_m4k.c
+++ b/src/target/mips_m4k.c
@@ -1001,6 +1001,12 @@ int mips_m4k_bulk_write_memory(struct target *target, uint32_t address, uint32_t
 	}
 
 	retval = mips32_pracc_fastdata_xfer(ejtag_info, source, write, address, count, (uint32_t*) buffer);
+	if (retval != ERROR_OK)
+	{
+		/* FASTDATA access failed, try normal memory write */
+		LOG_WARNING("Fastdata access Failed, falling back to non-bulk write");
+		retval = mips_m4k_write_memory(target, address, 4, count, buffer);
+	}
 
 	if (source)
 		target_free_working_area(target, source);