[U-Boot] [PATCH 2/3] omap3: mvblx: select fpgafilename according to orientation

[Michael Jones]

Rather than load the FPGA file from the FAT partition, look
at entry in system EEPROM to decide which file to retrieve directly
from the EXT3 partition.

Signed-off-by: Michael Jones <michael.jones at matrix-vision.de>
---
 board/matrix_vision/mvblx/sys_eeprom.c |   24 ++++++++++++++++++++++++
 include/configs/omap3_mvblx.h          |    6 +++---
 2 files changed, 27 insertions(+), 3 deletions(-)

diff --git a/board/matrix_vision/mvblx/sys_eeprom.c b/board/matrix_vision/mvblx/sys_eeprom.c
index 945a36d..15269c6 100644
--- a/board/matrix_vision/mvblx/sys_eeprom.c
+++ b/board/matrix_vision/mvblx/sys_eeprom.c
@@ -326,10 +326,28 @@ int do_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	return 0;
 }
 
+static inline int is_portrait(void)
+{
+	int i;
+	unsigned int orient_index = 0; /* idx of char which determines orientation */
+
+	for (i = sizeof(e.id)/sizeof(*e.id) - 1; i>=0; i--) {
+		if (e.id[i] == '-') {
+			orient_index = i+1;
+			break;
+		}
+	}
+
+	return (orient_index &&
+			(e.id[orient_index] >= '5') && (e.id[orient_index] <= '8'));
+}
+
 int mac_read_from_eeprom(void)
 {
 	u32 crc, crc_offset = offsetof(struct eeprom, crc);
 	u32 *crcp; /* Pointer to the CRC in the data read from the EEPROM */
+#define FILENAME_LANDSCAPE "mvBlueLynx_X.rbf"
+#define FILENAME_PORTRAIT "mvBlueLynx_X_sensor_cd.rbf"
 
 	if (read_eeprom()) {
 		printf("EEPROM Read failed.\n");
@@ -374,6 +392,12 @@ int mac_read_from_eeprom(void)
 			setenv("serial#", serial_num);
 	}
 
+	/* decide which fpga file to load depending on orientation */
+	if (is_portrait())
+		setenv("fpgafilename", FILENAME_PORTRAIT);
+	else
+		setenv("fpgafilename", FILENAME_LANDSCAPE);
+
 	/* TODO should I calculate CRC here? */
 	return 0;
 }
diff --git a/include/configs/omap3_mvblx.h b/include/configs/omap3_mvblx.h
index 99f0d4b..7bb05ca 100644
--- a/include/configs/omap3_mvblx.h
+++ b/include/configs/omap3_mvblx.h
@@ -170,9 +170,9 @@
 	"vram=12M\0" \
 	"dvimode=1024x768-24 at 60\0" \
 	"defaultdisplay=dvi\0" \
-	"fpgafilename=mvbluelynx_x.rbf\0" \
-	"loadfpga=if fatload mmc ${mmcdev} ${loadaddr} ${fpgafilename}; then " \
-		"fpga load 0 ${loadaddr} ${filesize}; " \
+	"loadfpga=if ext2load mmc ${mmcdev}:2 ${loadaddr} "\
+		"/lib/firmware/mvblx/${fpgafilename}; then " \
+			"fpga load 0 ${loadaddr} ${filesize}; " \
 		"fi;\0" \
 	"mmcdev=0\0" \
 	"mmcroot=/dev/mmcblk0p2 rw\0" \
-- 
1.7.4.1


MATRIX VISION GmbH, Talstrasse 16, DE-71570 Oppenweiler
Registergericht: Amtsgericht Stuttgart, HRB 271090
Geschaeftsfuehrer: Gerhard Thullner, Werner Armingeon, Uwe Furtner, Erhard Meier