FreeCalypso > hg > fc-magnetite
view src/cs/drivers/drv_app/ffs/board/cfgffs.c @ 629:3231dd9b38c1
armio.c: make GPIOs 8 & 13 outputs driving 1 on all "classic" targets
Calypso GPIOs 8 & 13 are pinmuxed with MCUEN1 & MCUEN2, respectively,
and on powerup these pins are MCUEN, i.e., outputs driving 1. TI's code
for C-Sample and earlier turns them into GPIOs configured as outputs also
driving 1 - so far, so good - but TI's code for BOARD 41 (which covers
D-Sample, Leonardo and all real world Calypso devices derived from the
latter) switches them from MCUEN to GPIOs, but then leaves them as inputs.
Given that the hardware powerup state of these two pins is outputs driving 1,
every Calypso board design MUST be compatible with such driving; typically
these GPIO signals will be either unused and unconnected or connected as
outputs driving some peripheral. Turning these pins into GPIO inputs will
result in floating inputs on every reasonably-wired board, thus I am
convinced that this configuration is nothing but a bug on the part of
whoever wrote this code at TI.
This floating input bug had already been fixed earlier for GTA modem and
FCDEV3B targets; the present change makes the fix unconditional for all
"classic" targets. The newly affected targets are D-Sample, Leonardo,
Tango and GTM900.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 02 Jan 2020 05:38:26 +0000 |
parents | 7aad22344e77 |
children |
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/****************************************************************************** * Flash File System (ffs) * Idea, design and coding by Mads Meisner-Jensen, mmj@ti.com * * FFS configuration * * $Id: cfgffs.c 1.27 Fri, 19 Dec 2003 12:00:13 +0100 tsj $ * ******************************************************************************/ #ifndef TARGET #include "ffs.cfg" #endif #include "ffs/ffs.h" #include "ffs/board/drv.h" #include "config/board.cfg" #if (BOARD == 34) #include "ffs/board/ffspcm.h" #endif #include "config/rf.cfg" #include <string.h> /****************************************************************************** * Flash Device Configuration ******************************************************************************/ #if (TARGET == 1) // The absolutely easiest way to disable FFS altogether is to set // ffs_flash_manufact = 0x99 and ffs_flash_device = 0x9999. Because this is // (as of today at least) an undefined device, FFS will NOT initialize and // every FFS function call will fail (with no side-effects). // FFS will automatically detect the flash device if both ffs_flash_manufact // and ffs_flash_device are zero. Note that this works *only* if the flash // device is mapped at address zero. Otherwise you *have* to supply // manufacturer and device IDs. // FFS can be configured to run in ram only. In this case the // 'ffs_flash_manufact' must be set to MANUFACT_RAM and an address to a // static user allocated ram buffer must be applied to the variable // 'ffs_flash_address'. In a ram configuration the 'ffs_flash_device' is an // arbitrary value that must be in sync with the 'device code' value chosen // in dev.c. #if (BOARD == 34) uint16 ffs_flash_manufact = MANUFACT_RAM; uint16 ffs_flash_device = 0x0404; // RAM int ffs_ram_image_address = FFS_BASE_ADDRESS; #else uint16 ffs_flash_manufact = 0x00; // autodetect device //uint16 ffs_flash_manufact = MANUFACT_RAM; //uint16 ffs_flash_manufact = 0x04; // Fujitsu //uint16 ffs_flash_manufact = 0xBF; // SST uint16 ffs_flash_device = 0x0000; // autodetect device //uint16 ffs_flash_device = 0x0404; // RAM //uint16 ffs_flash_device = 0xB496; // Fujitsu stacked device //uint16 ffs_flash_device = 0x2761; // SST device 1601 //uint16 ffs_flash_device = 0x2259; // 8x8kB blocks int ffs_ram_image_address = 0; // Dummy //unsigned char ffs_image[8*8*1024]; //int ffs_ram_image_address = (int) &ffs_image; #endif // BOARD == 34 #else uint16 ffs_flash_manufact = 'T'; //uint16 ffs_flash_device = 0x0F12; // Test device: 128x64kB blocks uint16 ffs_flash_device = 0x0F10; // Test device: 16x64kB blocks //uint16 ffs_flash_device = 0x080D; // Test device: 8x8kB blocks //uint16 ffs_flash_device = 0x0404; // Test device: 4x4kB blocks int ffs_ram_image_address = 0; // Dummy #endif /****************************************************************************** * ffs_is_modify_valid() ******************************************************************************/ // This is function to be implemented by the application programmer. It is // called by ffs when a read-only object is about to be modified or // removed. It should return zero if the operation should be // disallowed. Returning non-zero means go ahead. effs_t ffs_is_modifiable(const char *name) { // default is to allow any modification of read-only objects. // example of how to disallow modifying a specific object... if (strcmp("IMEI", &name[strlen(name) - 4]) == 0) return 0; return 1; }