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Currently USB Host isn't functional on the MPC8315E boards, for two reasons as described below. MPC8315 Reference Manual says: "The USB DR unit must have the same clock ratio as the encryption core unit, unless one of them has its clock disabled." The encryption core also drives I2C clock, so it is enabled and is equal to 01. That means USBDRCM should be 01 here. Plus, according to MPC8315E-RDB schematics, USB unit consumes CLK_IN clock from the 24.00MHz oscillator, which means we must adjust REFSEL bits as well. p.s. Idially we should rework whole 83xx/usb.c code, in two steps: 1. Move SCCR code to the U-Boot; 2. Implement fsl,usb-clock property in the device tree, so usb.c could decide what clock exactly to use on per-board basis. Though, today we're not in a hurry since there is just one 8315e board out there. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| misc.c | ||
| mpc83xx.h | ||
| mpc831x_rdb.c | ||
| mpc832x_mds.c | ||
| mpc832x_rdb.c | ||
| mpc834x_itx.c | ||
| mpc834x_mds.c | ||
| mpc836x_mds.c | ||
| mpc837x_mds.c | ||
| mpc837x_rdb.c | ||
| pci.c | ||
| sbc834x.c | ||
| usb.c | ||