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flash: cleanup stellaris device class detection 

read the target class during probe and save for later use.

Change-Id: Ib3ad20edc7d206b7f434bdcc6b947e6a5f06dd1f
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/388
Tested-by: jenkins
This commit is contained in:
Spencer Oliver 2012-01-17 16:04:53 +00:00
parent 7f1ab30b88
commit 8959fccc19
1 changed files with 31 additions and 35 deletions
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66
src/flash/nor/stellaris.c
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@ -24,6 +24,7 @@
/***************************************************************************
* STELLARIS flash is tested on LM3S811, LM3S6965, LM3s3748, more.
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
@ -32,7 +33,6 @@
#include <target/algorithm.h>
#include <target/armv7m.h>
#define DID0_VER(did0) ((did0 >> 28)&0x07)
/* STELLARIS control registers */
@ -88,7 +88,6 @@
#define FLASH_FMA_PRE(x) (2 * (x)) /* for FMPPREx */
#define FLASH_FMA_PPE(x) (2 * (x) + 1) /* for FMPPPEx */
static void stellaris_read_clock_info(struct flash_bank *bank);
static int stellaris_mass_erase(struct flash_bank *bank);
@ -101,6 +100,7 @@ struct stellaris_flash_bank
uint32_t dc1;
const char * target_name;
uint8_t target_class;
uint32_t sramsiz;
uint32_t flshsz;
@ -459,7 +459,7 @@ FLASH_BANK_COMMAND_HANDLER(stellaris_flash_bank_command)
static int get_stellaris_info(struct flash_bank *bank, char *buf, int buf_size)
{
int printed, device_class;
int printed;
struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
if (stellaris_info->did1 == 0)
@ -468,20 +468,12 @@ static int get_stellaris_info(struct flash_bank *bank, char *buf, int buf_size)
/* Read main and master clock freqency register */
stellaris_read_clock_info(bank);
if (DID0_VER(stellaris_info->did0) > 0)
{
device_class = (stellaris_info->did0 >> 16) & 0xFF;
}
else
{
device_class = 0;
}
printed = snprintf(buf,
buf_size,
"\nTI/LMI Stellaris information: Chip is "
"class %i (%s) %s rev %c%i\n",
device_class,
StellarisClassname[device_class],
stellaris_info->target_class,
StellarisClassname[stellaris_info->target_class],
stellaris_info->target_name,
(int)('A' + ((stellaris_info->did0 >> 8) & 0xFF)),
(int)((stellaris_info->did0) & 0xFF));
@ -707,44 +699,48 @@ static int stellaris_read_part_info(struct flash_bank *bank)
stellaris_info->iosc_desc = " (±30%)";
stellaris_info->xtal_mask = 0x0f;
switch ((did0 >> 28) & 0x7) {
case 0: /* Sandstorm */
/*
* Current (2009-August) parts seem to be rev C2 and use 12 MHz.
* Parts before rev C0 used 15 MHz; some C0 parts use 15 MHz
* (LM3S618), but some other C0 parts are 12 MHz (LM3S811).
*/
if (((did0 >> 8) & 0xff) < 2) {
stellaris_info->iosc_freq = 15000000;
stellaris_info->iosc_desc = " (±50%)";
}
break;
case 1:
switch ((did0 >> 16) & 0xff) {
/* get device class */
if (DID0_VER(did0) > 0) {
stellaris_info->target_class = (did0 >> 16) & 0xFF;
} else {
/* Sandstorm class */
stellaris_info->target_class = 0;
}
switch (stellaris_info->target_class) {
case 0: /* Sandstorm */
/*
* Current (2009-August) parts seem to be rev C2 and use 12 MHz.
* Parts before rev C0 used 15 MHz; some C0 parts use 15 MHz
* (LM3S618), but some other C0 parts are 12 MHz (LM3S811).
*/
if (((did0 >> 8) & 0xff) < 2) {
stellaris_info->iosc_freq = 15000000;
stellaris_info->iosc_desc = " (±50%)";
}
break;
case 1: /* Fury */
break;
case 4: /* Tempest */
case 5: /* Blizzard */
case 6: /* Firestorm */
stellaris_info->iosc_freq = 16000000; /* +/- 1% */
stellaris_info->iosc_desc = " (±1%)";
/* FALL THROUGH */
case 3: /* DustDevil */
stellaris_info->xtal_mask = 0x1f;
break;
default:
LOG_WARNING("Unknown did0 class");
}
break;
default:
LOG_WARNING("Unknown did0 version");
break;
}
for (i = 0; StellarisParts[i].partno; i++)
{
for (i = 0; StellarisParts[i].partno; i++) {
if ((StellarisParts[i].partno == ((did1 >> 16) & 0xFF)) &&
(StellarisParts[i].class == ((did0 >> 16) & 0xFF)))
(StellarisParts[i].class == stellaris_info->target_class))
break;
}