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omap3: mvblx: select fpgafilename according to orientation

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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@matrix-vision.de>
This commit is contained in:
Michael Jones 2013-02-07 23:53:36 +00:00 committed by Tom Rini
parent 661bb0f8f4
commit 71c4ae3f6d
2 changed files with 27 additions and 3 deletions
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24
board/matrix_vision/mvblx/sys_eeprom.c
View file

@ -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;
}

6
include/configs/omap3_mvblx.h
View file

@ -170,9 +170,9 @@
"vram=12M\0" \
"dvimode=1024x768-24@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" \