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-rw-r--r--src/flash/at91sam7.c51
-rw-r--r--src/flash/at91sam7.h9
-rw-r--r--src/jtag/ft2232.c77
3 files changed, 122 insertions, 15 deletions
diff --git a/src/flash/at91sam7.c b/src/flash/at91sam7.c
index a8e390a9..84916829 100644
--- a/src/flash/at91sam7.c
+++ b/src/flash/at91sam7.c
@@ -63,7 +63,7 @@ int at91sam7_info(struct flash_bank_s *bank, char *buf, int buf_size);
u32 at91sam7_get_flash_status(flash_bank_t *bank);
void at91sam7_set_flash_mode(flash_bank_t *bank,int mode);
-u8 at91sam7_wait_status_busy(flash_bank_t *bank, int timeout);
+u32 at91sam7_wait_status_busy(flash_bank_t *bank, u32 waitbits, int timeout);
int at91sam7_handle_gpnvm_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
flash_driver_t at91sam7_flash =
@@ -195,7 +195,7 @@ void at91sam7_read_clock_info(flash_bank_t *bank)
at91sam7_info->mck_freq = tmp >> ((mckr & PMC_MCKR_PRES) >> 2);
/* Forget old flash timing */
- at91sam7_set_flash_mode(bank,0);
+ at91sam7_set_flash_mode(bank,FMR_TIMING_NONE);
}
/* Setup the timimg registers for nvbits or normal flash */
@@ -208,10 +208,20 @@ void at91sam7_set_flash_mode(flash_bank_t *bank,int mode)
if (mode && (mode != at91sam7_info->flashmode))
{
/* Always round up (ceil) */
- if (mode==1)
- /* main clocks in 1uS */
- fmcn = (at91sam7_info->mck_freq/1000000ul)+1;
- else if (mode==2)
+ if (mode==FMR_TIMING_NVBITS)
+ {
+ if (at91sam7_info->cidr_arch == 0x60)
+ {
+ /* AT91SAM7A3 uses master clocks in 100 ns */
+ fmcn = (at91sam7_info->mck_freq/10000000ul)+1;
+ }
+ else
+ {
+ /* master clocks in 1uS for ARCH 0x7 types */
+ fmcn = (at91sam7_info->mck_freq/1000000ul)+1;
+ }
+ }
+ else if (mode==FMR_TIMING_FLASH)
/* main clocks in 1.5uS */
fmcn = (at91sam7_info->mck_freq/666666ul)+1;
@@ -230,11 +240,11 @@ void at91sam7_set_flash_mode(flash_bank_t *bank,int mode)
at91sam7_info->flashmode = mode;
}
-u8 at91sam7_wait_status_busy(flash_bank_t *bank, int timeout)
+u32 at91sam7_wait_status_busy(flash_bank_t *bank, u32 waitbits, int timeout)
{
u32 status;
- while ((!((status = at91sam7_get_flash_status(bank)) & 0x01)) && (timeout-- > 0))
+ while ((!((status = at91sam7_get_flash_status(bank)) & waitbits)) && (timeout-- > 0))
{
DEBUG("status: 0x%x", status);
usleep(1000);
@@ -256,6 +266,7 @@ u8 at91sam7_wait_status_busy(flash_bank_t *bank, int timeout)
return status;
}
+
/* Send one command to the AT91SAM flash controller */
int at91sam7_flash_command(struct flash_bank_s *bank,u8 cmd,u16 pagen)
{
@@ -267,8 +278,18 @@ int at91sam7_flash_command(struct flash_bank_s *bank,u8 cmd,u16 pagen)
target_write_u32(target, MC_FCR, fcr);
DEBUG("Flash command: 0x%x, pagenumber:", fcr, pagen);
- if (at91sam7_wait_status_busy(bank, 10)&0x0C)
+ if ((at91sam7_info->cidr_arch == 0x60)&&((cmd==SLB)|(cmd==CLB)))
{
+ /* Lock bit manipulation on AT91SAM7A3 waits for FC_FSR bit 1, EOL */
+ if (at91sam7_wait_status_busy(bank, MC_FSR_EOL, 10)&0x0C)
+ {
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+ return ERROR_OK;
+ }
+
+ if (at91sam7_wait_status_busy(bank, MC_FSR_FRDY, 10)&0x0C)
+ {
return ERROR_FLASH_OPERATION_FAILED;
}
return ERROR_OK;
@@ -422,7 +443,7 @@ int at91sam7_read_part_info(struct flash_bank_s *bank)
at91sam7_info->target_name = "AT91SAM7A3";
at91sam7_info->num_lockbits = 16;
at91sam7_info->pagesize = 256;
- at91sam7_info->pages_in_lockregion = 64;
+ at91sam7_info->pages_in_lockregion = 16;
at91sam7_info->num_pages = 16*64;
}
return ERROR_OK;
@@ -526,7 +547,7 @@ int at91sam7_erase(struct flash_bank_s *bank, int first, int last)
/* Configure the flash controller timing */
at91sam7_read_clock_info(bank);
- at91sam7_set_flash_mode(bank,2);
+ at91sam7_set_flash_mode(bank,FMR_TIMING_FLASH);
if ((first == 0) && (last == (at91sam7_info->num_lockbits-1)))
{
@@ -568,7 +589,7 @@ int at91sam7_protect(struct flash_bank_s *bank, int set, int first, int last)
/* Configure the flash controller timing */
at91sam7_read_clock_info(bank);
- at91sam7_set_flash_mode(bank,1);
+ at91sam7_set_flash_mode(bank,FMR_TIMING_NVBITS);
for (lockregion=first;lockregion<=last;lockregion++)
{
@@ -638,7 +659,7 @@ int at91sam7_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
/* Configure the flash controller timing */
at91sam7_read_clock_info(bank);
- at91sam7_set_flash_mode(bank,2);
+ at91sam7_set_flash_mode(bank,FMR_TIMING_FLASH);
for (pagen=first_page; pagen<last_page; pagen++) {
if (bytes_remaining<dst_min_alignment)
@@ -700,7 +721,7 @@ int at91sam7_info(struct flash_bank_s *bank, char *buf, int buf_size)
return ERROR_FLASH_OPERATION_FAILED;
}
- printed = snprintf(buf, buf_size, "\nat91sam7 information:\n");
+ printed = snprintf(buf, buf_size, "\nat91sam7 information: Chip is %s\n",at91sam7_info->target_name);
buf += printed;
buf_size -= printed;
@@ -800,7 +821,7 @@ int at91sam7_handle_gpnvm_command(struct command_context_s *cmd_ctx, char *cmd,
/* Configure the flash controller timing */
at91sam7_read_clock_info(bank);
- at91sam7_set_flash_mode(bank,1);
+ at91sam7_set_flash_mode(bank,FMR_TIMING_NVBITS);
if (at91sam7_flash_command(bank, flashcmd, (u16)(bit)) != ERROR_OK)
{
diff --git a/src/flash/at91sam7.h b/src/flash/at91sam7.h
index e2412f8c..0bb8f439 100644
--- a/src/flash/at91sam7.h
+++ b/src/flash/at91sam7.h
@@ -86,7 +86,16 @@ typedef struct at91sam7_flash_bank_s
#define CGPB 0x0D
#define SSB 0x0F
+/* MC_FSR bit definitions */
+#define MC_FSR_FRDY 1
+#define MC_FSR_EOL 2
+
/* AT91SAM7 constants */
#define RC_FREQ 32000
+/* FLASH_TIMING_MODES */
+#define FMR_TIMING_NONE 0
+#define FMR_TIMING_NVBITS 1
+#define FMR_TIMING_FLASH 2
+
#endif /* AT91SAM7_H */
diff --git a/src/jtag/ft2232.c b/src/jtag/ft2232.c
index c1973a3c..6bb4be93 100644
--- a/src/jtag/ft2232.c
+++ b/src/jtag/ft2232.c
@@ -90,11 +90,13 @@ typedef struct ft2232_layout_s
int usbjtag_init(void);
int jtagkey_init(void);
int olimex_jtag_init(void);
+int m5960_init(void);
/* reset procedures for supported layouts */
void usbjtag_reset(int trst, int srst);
void jtagkey_reset(int trst, int srst);
void olimex_jtag_reset(int trst, int srst);
+void m5960_reset(int trst, int srst);
/* blink procedures for layouts that support a blinking led */
void olimex_jtag_blink(void);
@@ -106,6 +108,7 @@ ft2232_layout_t ft2232_layouts[] =
{"jtagkey_prototype_v1", jtagkey_init, jtagkey_reset, NULL},
{"signalyzer", usbjtag_init, usbjtag_reset, NULL},
{"olimex-jtag", olimex_jtag_init, olimex_jtag_reset, olimex_jtag_blink},
+ {"m5960", m5960_init, m5960_reset, NULL},
{NULL, NULL, NULL},
};
@@ -718,6 +721,34 @@ void olimex_jtag_reset(int trst, int srst)
DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
}
+void m5960_reset(int trst, int srst)
+{
+ if (trst == 1)
+ {
+ cur_state = TAP_TLR;
+ low_output &= ~nTRST;
+ }
+ else if (trst == 0)
+ {
+ low_output |= nTRST;
+ }
+
+ if (srst == 1)
+ {
+ low_output |= nSRST;
+ }
+ else if (srst == 0)
+ {
+ low_output &= ~nSRST;
+ }
+
+ /* command "set data bits low byte" */
+ BUFFER_ADD = 0x80;
+ BUFFER_ADD = low_output;
+ BUFFER_ADD = low_direction;
+ DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
+}
+
int ft2232_execute_queue()
{
jtag_command_t *cmd = jtag_command_queue; /* currently processed command */
@@ -1304,6 +1335,52 @@ int olimex_jtag_init(void)
return ERROR_OK;
}
+int m5960_init(void)
+{
+ u8 buf[3];
+ u32 bytes_written;
+
+ low_output = 0x18;
+ low_direction = 0xfb;
+
+ /* initialize low byte for jtag */
+ buf[0] = 0x80; /* command "set data bits low byte" */
+ buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
+ buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE[12]=out, n[ST]srst=out */
+ DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
+
+ if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
+ {
+ ERROR("couldn't initialize FT2232 with 'm5960' layout");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ nTRST = 0x10;
+ nTRSTnOE = 0x0; /* not output enable for nTRST */
+ nSRST = 0x20;
+ nSRSTnOE = 0x00; /* no output enable for nSRST */
+
+ high_output = 0x00;
+ high_direction = 0x0c;
+
+ /* turn red LED1 on, LED2 off */
+ high_output |= 0x08;
+
+ /* initialize high port */
+ buf[0] = 0x82; /* command "set data bits high byte" */
+ buf[1] = high_output; /* value */
+ buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
+ DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
+
+ if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
+ {
+ ERROR("couldn't initialize FT2232 with 'm5960' layout");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ return ERROR_OK;
+}
+
void olimex_jtag_blink(void)
{
/* Olimex ARM-USB-OCD has a LED connected to ACBUS3
generated by cgit v1.2.3 (git 2.46.0) at 2024-12-25 21:55:47 +0000