ppc4xx: Big lwmon5 board support rework/update

This patch brings the lwmon5 board support up-to-date. Here a
summary of the changes:

lwmon5 board port related:
- GPIO's changed to control the LSB transmitter
- Reset USB PHY's upon power-up
- Enable CAN upon power-up
- USB init error workaround (errata CHIP_6)
- EBC: Enable burstmode and modify the timings for the GDC memory
- EBC: Speed up NOR flash timings

lwmon5 board POST related:
- Add FPGA memory test
- Add GDC memory test
- DSP POST reworked
- SYSMON POST: Fix handling of negative temperatures
- Add output for sysmon1 POST
- HW-watchdog min. time test reworked

Additionally some coding-style changes were done.

Signed-off-by: Sascha Laue <sascha.laue@liebherr.com>
Signed-off-by: Stefan Roese <sr@denx.de>

1 files changed, 36 insertions, 20 deletions

diff --git a/post/board/lwmon5/dspic.c b/post/board/lwmon5/dspic.c
index ff2ed0566f..861673952d 100644
--- a/post/board/lwmon5/dspic.c
+++ b/post/board/lwmon5/dspic.c
@@ -38,14 +38,16 @@ DECLARE_GLOBAL_DATA_PTR;
 
 #define DSPIC_POST_ERROR_REG	0x800
 #define DSPIC_SYS_ERROR_REG	0x802
-#define DSPIC_VERSION_REG	0x804
+#define DSPIC_SYS_VERSION_REG	0x804
+#define DSPIC_FW_VERSION_REG	0x808
 
 #if CONFIG_POST & CONFIG_SYS_POST_BSPEC1
 
 /* Verify that dsPIC ready test done early at hw init passed ok */
 int dspic_init_post_test(int flags)
 {
-	if (in_be32((void *)CONFIG_SYS_DSPIC_TEST_ADDR) & CONFIG_SYS_DSPIC_TEST_MASK) {
+	if (in_be32((void *)CONFIG_SYS_DSPIC_TEST_ADDR) &
+	    CONFIG_SYS_DSPIC_TEST_MASK) {
 		post_log("dsPIC init test failed\n");
 		return 1;
 	}
@@ -57,46 +59,60 @@ int dspic_init_post_test(int flags)
 
 #if CONFIG_POST & CONFIG_SYS_POST_BSPEC2
 /* Read a register from the dsPIC. */
-int dspic_read(ushort reg)
+int dspic_read(ushort reg, ushort *data)
 {
-	uchar buf[2];
+	uchar buf[sizeof(*data)];
+	int rval;
 
 	if (i2c_read(CONFIG_SYS_I2C_DSPIC_IO_ADDR, reg, 2, buf, 2))
 		return -1;
+	rval = i2c_read(CONFIG_SYS_I2C_DSPIC_IO_ADDR, reg, sizeof(reg),
+			buf, sizeof(*data));
+	*data = (buf[0] << 8) | buf[1];
 
-	return (uint)((buf[0] << 8) | buf[1]);
+	return rval;
 }
 
 /* Verify error codes regs, display version */
 int dspic_post_test(int flags)
 {
-	int data;
+	ushort data;
 	int ret = 0;
 
 	post_log("\n");
-	data = dspic_read(DSPIC_VERSION_REG);
-	if (data == -1) {
-		post_log("dsPIC : failed read version\n");
+
+	/* read dspic FW-Version */
+	if (dspic_read(DSPIC_FW_VERSION_REG, &data)) {
+		post_log("dsPIC: failed read FW-Version\n");
+		ret = 1;
+	} else {
+		post_log("dsPIC FW-Version:  %u.%u\n",
+			 (data >> 8) & 0xFF, data & 0xFF);
+	}
+
+	/* read dspic SYS-Version */
+	if (dspic_read(DSPIC_SYS_VERSION_REG, &data)) {
+		post_log("dsPIC: failed read version\n");
 		ret = 1;
 	} else {
-		post_log("dsPIC version: %u.%u\n",
-			(data >> 8) & 0xFF, data & 0xFF);
+		post_log("dsPIC SYS-Version: %u.%u\n",
+			 (data >> 8) & 0xFF, data & 0xFF);
 	}
 
-	data = dspic_read(DSPIC_POST_ERROR_REG);
-	if (data != 0) ret = 1;
-	if (data == -1) {
-		post_log("dsPIC : failed read POST code\n");
+	/* read dspic POST error code */
+	if (dspic_read(DSPIC_POST_ERROR_REG, &data)) {
+		post_log("dsPIC: failed read POST code\n");
+		ret = 1;
 	} else {
-		post_log("dsPIC POST code 0x%04X\n", data);
+		post_log("dsPIC POST-ERROR   code:  0x%04X\n", data);
 	}
 
-	data = dspic_read(DSPIC_SYS_ERROR_REG);
-	if (data == -1) {
-		post_log("dsPIC : failed read system error\n");
+	/* read dspic SYS error code */
+	if ((data = dspic_read(DSPIC_SYS_ERROR_REG, &data))) {
+		post_log("dsPIC: failed read system error\n");
 		ret = 1;
 	} else {
-		post_log("dsPIC SYS-ERROR code: 0x%04X\n", data);
+		post_log("dsPIC SYS-ERROR    code:  0x%04X\n", data);
 	}
 
 	return ret;