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str9xpec: Find flash controller from the chain. 

Find the flash controller by position since it is before the core,
not after it.

This fixes the problem that str9xpec enable_turbo (or any other
str9xpec command) did not work. (See my post in
http://forum.sparkfun.com/viewtopic.php?f=18&t=25542)

Signed-off-by: Santeri Salko <santeri.salko@gmail.com>
This commit is contained in:
Santeri Salko 2011-01-13 15:21:06 +02:00 committed by Øyvind Harboe
parent 11193c040c
commit 5b1efd0176
3 changed files with 4 additions and 2 deletions
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3
src/flash/nor/str9xpec.c
View File

@ -306,7 +306,8 @@ FLASH_BANK_COMMAND_HANDLER(str9xpec_flash_bank_command)
arm7_9 = armv4_5->arch_info;
jtag_info = &arm7_9->jtag_info;
str9xpec_info->tap = bank->target->tap;
/* The core is the next tap after the flash controller in the chain */
str9xpec_info->tap = jtag_tap_by_position(jtag_info->tap->abs_chain_position - 1);
str9xpec_info->isc_enable = 0;
str9xpec_build_block_list(bank);

2
src/jtag/core.c
View File

@ -216,7 +216,7 @@ void jtag_tap_add(struct jtag_tap *t)
}
/* returns a pointer to the n-th device in the scan chain */
static inline struct jtag_tap *jtag_tap_by_position(unsigned n)
struct jtag_tap *jtag_tap_by_position(unsigned n)
{
struct jtag_tap *t = jtag_all_taps();

1
src/jtag/jtag.h
View File

@ -173,6 +173,7 @@ struct jtag_tap* jtag_all_taps(void);
const char *jtag_tap_name(const struct jtag_tap *tap);
struct jtag_tap* jtag_tap_by_string(const char* dotted_name);
struct jtag_tap* jtag_tap_by_jim_obj(Jim_Interp* interp, Jim_Obj* obj);
struct jtag_tap* jtag_tap_by_position(unsigned abs_position);
struct jtag_tap* jtag_tap_next_enabled(struct jtag_tap* p);
unsigned jtag_tap_count_enabled(void);
unsigned jtag_tap_count(void);