upd720201 datasheet pdf

--------------------------------------------------------------------------- How to apply FW Download function to Linux OS. --------------------------------------------------------------------------- 1) Copy "renesas" directory including firmware file to to "/lib/firmware". Note: Please check if the firmware version is latest or not. When you change the firmware file from K2011070.mem to the latest version, you need to change "renesas/K2011070.mem" in the xhci-fwdload.c to new firmware file name(Ex. Kxxxxxxx.mem). #define XHCI_FWFILENAME_720201_202ES20 "renesas/Kxxxxxxx.mem" 2) Copy xhci-fwdload.h and xhci-fwdload.c to "/usr/src/kernels/linux/drivers/usb/host". 3) Modify the following three files. 1)"/usr/src/kernels/linux/drivers/usb/host/Makefile" Add "xhci-fwdload.o" at the end of line starting with "xhci-hcd-objs: =". Refer to merged_files/X.X.X.X/Makefile. 2)"/usr/src/kernels/linux/drivers/usb/host/xhci.h" Add "#include "xhic-fwdload.h" " at the beginning of the xhci.h file. Add variable member "struct firmware * firmware_pointer" in the "struct xhci_hcd". Refer to merged_files/X.X.X.X/xhci.h. 3)"/usr/src/kernels/linux/drivers/usb/host/xhci-pci.c" Add "XHCI_FWDOWNLOAD(hcd);" to beginning of xhci_pci_setup() function. If xhci_pci_resume() function exists, add "XHCI_FWRELOAD(hcd);" at the beginning of the function, and If xhci_pci_remove() function exists, add "XHCI_FWUNLOAD(pci_get_drvdata(dev));" at the beginning of the function. If xhci_pci_remove() function does not exists, add "XHCI_FWUNLOAD (hcd) at the next line of "XHCI_FWDOWNLOAD (hcd) in the xhci_pci_setup() function. Refer to merged_files/x.x.x.x/xhci-pci.c 4)"/usr/src/kernels/linux/drivers/usb/host/xhci.c" If xhci_pci_resume function exits, modify the following codes at the if(!hibernated){}block. before) if (handshake(xhci, &xhci->op_regs->status, STS_RESTORE, 0, 10*100)) { after) if (handshake(xhci, &xhci->op_regs->status, STS_RESTORE, 0, 50*100)) { 4) Compile kernel and install # make # make moudles_install # make install