Update Pirelli DP-L10 README file
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Gregory Nutt
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@ -4,6 +4,20 @@ pirelli_dpl10
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This directory contains the board support for Pirelli "Discus" DP-L10
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phones.
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Contents
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========
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* History
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* Osmocom-BB Dependencies and Sercomm
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* Loading NuttX
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* Memory Map
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* USB Serial Console
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* NuttX OABI "buildroot" Toolchain
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* Generic OABI Toolchain
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* Configurations
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History
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=======
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This port is a variant of the compal_e88 configuration with the small
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change of enabling the IrDA serial console:
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@ -43,6 +57,8 @@ Osmocom-BB Dependencies and Sercomm
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Loading NuttX
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=============
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General
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-------
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The osmocom-bb wiki describes how to load NuttX. See
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http://bb.osmocom.org/trac/wiki/nuttx-bb for detailed information.
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The way that nuttx is loaded depends on the configuration (highram/compalram)
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@ -54,6 +70,8 @@ Loading NuttX
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by talking to the ramloader) when having a ramloader(which can only
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load 64k).
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The Pirelli USB Serial Interface
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--------------------------------
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The Pirelli phone is epecially easy to use because you just use the
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supplied USB cable. The phone already has an integrated Silabs CP210x
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USB-UART, which is supported by Linux. No need for a T191 cable.
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@ -64,6 +82,8 @@ Loading NuttX
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# modprobe -v cp210x
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# echo "0489 e003" > /sys/bus/usb-serial/drivers/cp210x/new_id
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Loading NuttX
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-------------
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Here's how I load NuttX into the phone:
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- Take out the battery
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@ -78,6 +98,8 @@ Loading NuttX
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Memory Map
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=========
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Internal SRAM and ROM
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---------------------
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Calypso has 256KB of internal SRAM (0x800000-0x83ffff, although some of
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this is, I believe, actually ROM). Only this internal SRAM is used by
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these configurations. The internal SRAM is broken up into two logical
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@ -85,12 +107,58 @@ Memory Map
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LRAM (rw) : ORIGIN = 0x00800000, LENGTH = 0x00020000
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HRAM (rw) : ORIGIN = 0x00820000, LENGTH = 0x00020000
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IRAM (rw) : ORIGIN = 0x00830000, LENGTH = 0x00010000
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Code can be loaded by the CalypsoBootloader only into HRAM beginning at
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address 0x00820000 and, hence, is restricted to 128KB (including then
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non-loaded sections: uninitialized data and for the NuttX heap).
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SDRAM
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-----
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The Pirelli DP-L10 has 8MB of SDRAM beginning at address 0x01000000.
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This DRAM appears to be initialized by the Pirelli ROM loader and is
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ready for use with no further initialization required.
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NOR FLASH
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---------
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There is non-volatile memory at address 0x00000000. The other Calypso
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phones have NOR FLASH at this location. This needs more investigation
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for the Pirelli phones.
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USB Serial Console
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==================
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These configurations are set up to use the Calypso IrDA UART as the serial
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port. On the Pirelli phone, this port connects to the built-in USB-serial
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adaptor so that that NuttX serial console will be available on your PC as
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a USB serial device. You should see something this using 'dmesg' when you
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plug the Pirelli phone into a PC running Linux:
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usb 5-2: new full speed USB device number 3 using uhci_hcd
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usb 5-2: New USB device found, idVendor=0489, idProduct=e003
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usb 5-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
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usb 5-2: Product: DP-L10
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usb 5-2: Manufacturer: Silicon Labs
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usb 5-2: SerialNumber: 0001
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usbcore: registered new interface driver usbserial
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USB Serial support registered for generic
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usbcore: registered new interface driver usbserial_generic
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usbserial: USB Serial Driver core
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USB Serial support registered for cp210x
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cp210x 5-2:1.0: cp210x converter detected
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usb 5-2: reset full speed USB device number 3 using uhci_hcd
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usb 5-2: cp210x converter now attached to ttyUSB0
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usbcore: registered new interface driver cp210x
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cp210x: v0.09:Silicon Labs CP210x RS232 serial adaptor driver
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Before you use this port to communicate with Nuttx, make sure that osmocon is
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no longer running. Then start a serial terminal such as minicom on your host
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PC. Configure the serial terminal so that it uses:
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Port: /dev/ttyUSB0
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Baud: 115,200 8N1
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JTAG and Alternative Serial Console
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===================================
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@ -206,3 +274,42 @@ Generic OABI Toolchain
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follows:
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CONFIG_ARM_TOOLCHAIN_GNU_OABI=y
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Configurations
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==============
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nsh:
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---
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Configures the NuttShell (nsh) located at apps/examples/nsh.
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NOTES:
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1. This configuration uses the mconf-based configuration tool. To
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change this configuration using that tool, you should:
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a. Build and install the kconfig-mconf tool. See nuttx/README.txt
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and misc/tools/
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b. Execute 'make menuconfig' in nuttx/ in order to start the
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reconfiguration process.
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2. This configuration enables the serial interface on IrDA UART which
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will appears as a USB serial device.
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CONFIG_SERIAL_IRDA_CONSOLE=y
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3. By default, this configuration uses the CodeSourcery toolchain
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for Windows and builds under Cygwin (or probably MSYS). That
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can easily be reconfigured, of course.
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CONFIG_HOST_LINUX=y : Builds under Windows
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CONFIG_ARM_TOOLCHAIN_BUILDROOT=y : NuttX buildroot OABI toolchain
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CONFIG_ARM_OABI_TOOLCHAIN=y
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You can switch to use the generic arm-elf- GCC toolchain by
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setting:
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CONFIG_ARM_TOOLCHAIN_GNU_OABI=y : General arm-elf- toolchain
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4. Support for builtin applications is enabled. A builtin 'poweroff'
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command is supported.
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