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Re: support for AM29LV256M flash device
Hi !
----------- > I added this to flash_amd_am29xxxxx.cdl
cdl_option CYGHWR_DEVS_FLASH_AMD_AM29LV256M {
display "AMD AM29LV256M flash memory support"
default_value 0
implements CYGINT_DEVS_FLASH_AMD_VARIANTS
description "
When this option is enabled, the AMD flash driver will be
able to recognize and handle the AM29LV256M
part in the family."
}
----------- > I added this to flash_am29xxxxx_parts.inl 16 bit devices
#ifdef CYGHWR_DEVS_FLASH_AMD_AM29LV256M
{ // AM29LV256M
device_id : FLASHWORD(0x227E),
block_size : 0x10000 * CYGNUM_FLASH_INTERLEAVE,
block_count: 512,
device_size: 0x2000000 * CYGNUM_FLASH_INTERLEAVE,
base_mask : ~(0x2000000 * CYGNUM_FLASH_INTERLEAVE - 1),
bootblock : false,
banked : false
},
#endif
----------- >I changed pkgconf(.ldi and .h) things to match my flash.
----------- > Added a file arm_micro9_flash.c, for defines. (MICRO9 is my
custom board).
//==========================================================================
//
// arm_micro9_flash.c
//
// Flash programming for AMD Flash devices on
// CONTEC hypercontrol MICRO9
//
//--------------------------------------------------------------------------
// Device properties
#define CYGNUM_FLASH_INTERLEAVE (2)
#define CYGNUM_FLASH_SERIES (1)
#define CYGNUM_FLASH_WIDTH (16)
#define CYGNUM_FLASH_BASE (0x10000000u)
//--------------------------------------------------------------------------
// Platform specific extras
//--------------------------------------------------------------------------
#include <cyg/infra/diag.h> // diag_printf
// Now include the driver code.
#include "cyg/io/flash_am29xxxxx.inl"
----------- >Added a cdl script for my platform:
#====================================================================
#
# flash_micro9.cdl
#
# FLASH memory - Hardware support on MICRO9
#
#====================================================================
cdl_package CYGPKG_DEVS_FLASH_MICRO9 {
display "MICRO 9 FLASH memory support"
description "FLASH memory device support for MICRO9"
parent CYGPKG_IO_FLASH
active_if CYGPKG_IO_FLASH
requires CYGPKG_HAL_ARM_ARM9_EP93XX
implements CYGHWR_IO_FLASH_DEVICE
compile arm_micro9_flash.c
implements CYGINT_DEVS_FLASH_AMD_AM29XXXXX_REQUIRED
# Arguably this should do in the generic package
# but then there is a logic loop so you can never enable it.
cdl_interface CYGINT_DEVS_FLASH_AMD_AM29XXXXX_REQUIRED {
display "Generic AMD FlashFile driver required"
}
# requires CYGINT_DEVS_FLASH_AMD_VARIANTS
requires CYGHWR_DEVS_FLASH_AMD_AM29LV256M
}
----------- > And I changed cdl script for my custom board that
CYGPKG_DEVS_FLASH_MICRO9 is used.
I hope that was it .... :-)
regards manfred gruber
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