2015-04-03 16:26 GMT+02:00 Michael Trimarchi <mich...@amarulasolutions.com>: > Hi > > Increase the divisor of the clock > > MXC_CCM_CSCDR1_USDHC[X]_PODF_MASK > MXC_CCM_CSCDR1_USDHC[X]_PODF_OFFSET > > I'm not sure because I have not a board and no time before Easter > to open documentation ;) > > Michael >
Hi Michael, the register CCM_CSCDR1 did the trick, thank you. Unfortunately on the buggy hardware I have the same problem (printed below). ========= On the working board > md.l 020c4024 1 > clocks PLL_SYS 792 MHz PLL_BUS 528 MHz PLL_OTG 480 MHz PLL_NET 50 MHz IPG 66000 kHz UART 80000 kHz AHB 132000 kHz AXI 198000 kHz DDR 396000 kHz USDHC1 198000 kHz USDHC2 198000 kHz USDHC3 198000 kHz USDHC4 198000 kHz EMI SLOW 99000 kHz IPG PERCLK 66000 kHz > run loadk reading uImage 5157968 bytes read in 454 ms (10.8 MiB/s) Increased divisor below: > mw.l 020c4024 00790b00 > clocks PLL_SYS 792 MHz PLL_BUS 528 MHz PLL_OTG 480 MHz PLL_NET 50 MHz IPG 66000 kHz UART 80000 kHz AHB 132000 kHz AXI 198000 kHz DDR 396000 kHz USDHC1 198000 kHz USDHC2 198000 kHz USDHC3 49500 kHz <------- USDHC4 198000 kHz EMI SLOW 99000 kHz IPG PERCLK 66000 kHz > run loadk reading uImage 5157968 bytes read in 882 ms (5.6 MiB/s) <--- slower upload into memory ========= On the buggy board : ERROR > fatload mmc 0:1 0x12000000 uImage reading uImage Error reading cluster ** Unable to read file uImage ** > fatload mmc 0:1 0x12000000 uImage ** Can't read partition table on 0:0 ** ** Invalid partition 1 ** > fatload mmc 0:1 0x12000000 uImage ** Can't read partition table on 0:0 ** ** Invalid partition 1 ** Ciao -- Marco _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
