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In warm reset conditions on OMAP36xx/AM/DM37xx the rom code incorrectly sets the DPLL4 clock input divider to /6.5 which is an invalid value unless the input clock is 13MHz. When a JTAG emulator is attached, a warm reset is necessary after the emulator gains control of the process. This results in a loss of serial output due to the invalid DPLL4 settings. This patch fixes the issue by resetting the DPLL4 clock input divider to /1 when the input clock is not 13MHz. AM/DM37x TRM section 3.5.3.3.3.2.1 specifies that the /6.5 setting is only used when the input clock is 13MHz. Signed-off-by: Matt Porter <mporter@ti.com> |
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.. | ||
board.c | ||
clock.c | ||
config.mk | ||
emac.c | ||
emif4.c | ||
lowlevel_init.S | ||
Makefile | ||
mem.c | ||
sdrc.c | ||
spl_id_nand.c | ||
sys_info.c |