summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--arch/blackfin/cpu/cmd_gpio.c6
-rw-r--r--arch/blackfin/cpu/jtag-console.c95
-rw-r--r--include/configs/bf533-ezkit.h43
-rw-r--r--include/configs/bf533-stamp.h43
-rw-r--r--include/configs/bf561-ezkit.h42
-rw-r--r--include/configs/bfin_adi_common.h1
-rw-r--r--include/configs/blackstamp.h28
-rw-r--r--include/configs/ibf-dsp561.h29
-rwxr-xr-xtools/jtagconsole4
9 files changed, 99 insertions, 192 deletions
diff --git a/arch/blackfin/cpu/cmd_gpio.c b/arch/blackfin/cpu/cmd_gpio.c
index 9e505b661..4430c90d4 100644
--- a/arch/blackfin/cpu/cmd_gpio.c
+++ b/arch/blackfin/cpu/cmd_gpio.c
@@ -26,11 +26,9 @@ int do_gpio(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
return 0;
}
- if (argc != 3) {
+ if (argc != 3)
show_usage:
- printf("Usage:\n%s\n", cmdtp->usage);
- return 1;
- }
+ return cmd_usage(cmdtp);
/* parse the behavior */
ulong sub_cmd;
diff --git a/arch/blackfin/cpu/jtag-console.c b/arch/blackfin/cpu/jtag-console.c
index 1cd619f10..e0f297560 100644
--- a/arch/blackfin/cpu/jtag-console.c
+++ b/arch/blackfin/cpu/jtag-console.c
@@ -1,49 +1,116 @@
/*
* jtag-console.c - console driver over Blackfin JTAG
*
- * Copyright (c) 2008 Analog Devices Inc.
+ * Copyright (c) 2008-2010 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#include <common.h>
+#include <malloc.h>
#include <stdio_dev.h>
#include <asm/blackfin.h>
+#ifdef DEBUG
+# define dprintf(...) serial_printf(__VA_ARGS__)
+#else
+# define dprintf(...) do { if (0) printf(__VA_ARGS__); } while (0)
+#endif
+
+static inline void dprintf_decode(const char *s, uint32_t len)
+{
+ uint32_t i;
+ for (i = 0; i < len; ++i)
+ if (s[i] < 0x20 || s[i] >= 0x7f)
+ dprintf("\\%o", s[i]);
+ else
+ dprintf("%c", s[i]);
+}
+
+static inline uint32_t bfin_write_emudat(uint32_t emudat)
+{
+ __asm__ __volatile__("emudat = %0;" : : "d"(emudat));
+ return emudat;
+}
+
+static inline uint32_t bfin_read_emudat(void)
+{
+ uint32_t emudat;
+ __asm__ __volatile__("%0 = emudat;" : "=d"(emudat));
+ return emudat;
+}
+
#ifndef CONFIG_JTAG_CONSOLE_TIMEOUT
# define CONFIG_JTAG_CONSOLE_TIMEOUT 500
#endif
/* The Blackfin tends to be much much faster than the JTAG hardware. */
-static void jtag_write_emudat(uint32_t emudat)
+static bool jtag_write_emudat(uint32_t emudat)
{
static bool overflowed = false;
ulong timeout = get_timer(0) + CONFIG_JTAG_CONSOLE_TIMEOUT;
while (bfin_read_DBGSTAT() & 0x1) {
if (overflowed)
- return;
+ return overflowed;
if (timeout < get_timer(0))
overflowed = true;
}
overflowed = false;
- __asm__ __volatile__("emudat = %0;" : : "d"(emudat));
+ bfin_write_emudat(emudat);
+ return overflowed;
}
/* Transmit a buffer. The format is:
* [32bit length][actual data]
*/
-static void jtag_send(const char *c, uint32_t len)
+static void jtag_send(const char *raw_str, uint32_t len)
{
- uint32_t i;
+ const char *cooked_str;
+ uint32_t i, ex;
if (len == 0)
return;
+ /* Ugh, need to output \r after \n */
+ ex = 0;
+ for (i = 0; i < len; ++i)
+ if (raw_str[i] == '\n')
+ ++ex;
+ if (ex) {
+ char *c = malloc(len + ex);
+ cooked_str = c;
+ for (i = 0; i < len; ++i) {
+ *c++ = raw_str[i];
+ if (raw_str[i] == '\n')
+ *c++ = '\r';
+ }
+ len += ex;
+ } else
+ cooked_str = raw_str;
+
+ dprintf("%s(\"", __func__);
+ dprintf_decode(cooked_str, len);
+ dprintf("\", %i)\n", len);
+
/* First send the length */
- jtag_write_emudat(len);
+ if (jtag_write_emudat(len))
+ goto done;
/* Then send the data */
- for (i = 0; i < len; i += 4)
- jtag_write_emudat((c[i] << 0) | (c[i+1] << 8) | (c[i+2] << 16) | (c[i+3] << 24));
+ for (i = 0; i < len; i += 4) {
+ uint32_t emudat =
+ (cooked_str[i + 0] << 0) |
+ (cooked_str[i + 1] << 8) |
+ (cooked_str[i + 2] << 16) |
+ (cooked_str[i + 3] << 24);
+ if (jtag_write_emudat(emudat)) {
+ bfin_write_emudat(0);
+ goto done;
+ }
+ }
+
+ done:
+ if (cooked_str != raw_str)
+ free((char *)cooked_str);
}
static void jtag_putc(const char c)
{
@@ -59,7 +126,10 @@ static size_t inbound_len, leftovers_len;
/* Lower layers want to know when jtag has data */
static int jtag_tstc_dbg(void)
{
- return (bfin_read_DBGSTAT() & 0x2);
+ int ret = (bfin_read_DBGSTAT() & 0x2);
+ if (ret)
+ dprintf("%s: ret:%i\n", __func__, ret);
+ return ret;
}
/* Higher layers want to know when any data is available */
@@ -77,6 +147,9 @@ static int jtag_getc(void)
int ret;
uint32_t emudat;
+ dprintf("%s: inlen:%zu leftlen:%zu left:%x\n", __func__,
+ inbound_len, leftovers_len, leftovers);
+
/* see if any data is left over */
if (leftovers_len) {
--leftovers_len;
@@ -88,7 +161,7 @@ static int jtag_getc(void)
/* wait for new data ! */
while (!jtag_tstc_dbg())
continue;
- __asm__("%0 = emudat;" : "=d"(emudat));
+ emudat = bfin_read_emudat();
if (inbound_len == 0) {
/* grab the length */
diff --git a/include/configs/bf533-ezkit.h b/include/configs/bf533-ezkit.h
index 37a70592f..95d3afa85 100644
--- a/include/configs/bf533-ezkit.h
+++ b/include/configs/bf533-ezkit.h
@@ -94,49 +94,10 @@
/*
* I2C Settings
- * By default PF1 is used as SDA and PF0 as SCL on the Stamp board
*/
#define CONFIG_SOFT_I2C
-#ifdef CONFIG_SOFT_I2C
-#define PF_SCL PF0
-#define PF_SDA PF1
-#define I2C_INIT \
- do { \
- *pFIO_DIR |= PF_SCL; \
- SSYNC(); \
- } while (0)
-#define I2C_ACTIVE \
- do { \
- *pFIO_DIR |= PF_SDA; \
- *pFIO_INEN &= ~PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_TRISTATE \
- do { \
- *pFIO_DIR &= ~PF_SDA; \
- *pFIO_INEN |= PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_READ ((*pFIO_FLAG_D & PF_SDA) != 0)
-#define I2C_SDA(bit) \
- do { \
- if (bit) \
- *pFIO_FLAG_S = PF_SDA; \
- else \
- *pFIO_FLAG_C = PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_SCL(bit) \
- do { \
- if (bit) \
- *pFIO_FLAG_S = PF_SCL; \
- else \
- *pFIO_FLAG_C = PF_SCL; \
- SSYNC(); \
- } while (0)
-#define I2C_DELAY udelay(5) /* 1/4 I2C clock duration */
-
-#endif
+#define CONFIG_SOFT_I2C_GPIO_SCL GPIO_PF0
+#define CONFIG_SOFT_I2C_GPIO_SDA GPIO_PF1
/*
diff --git a/include/configs/bf533-stamp.h b/include/configs/bf533-stamp.h
index 02c8bc3c3..f39bfee0a 100644
--- a/include/configs/bf533-stamp.h
+++ b/include/configs/bf533-stamp.h
@@ -138,49 +138,10 @@
/*
* I2C Settings
- * By default PF2 is used as SDA and PF3 as SCL on the Stamp board
*/
#define CONFIG_SOFT_I2C
-#ifdef CONFIG_SOFT_I2C
-#define PF_SCL PF3
-#define PF_SDA PF2
-#define I2C_INIT \
- do { \
- *pFIO_DIR |= PF_SCL; \
- SSYNC(); \
- } while (0)
-#define I2C_ACTIVE \
- do { \
- *pFIO_DIR |= PF_SDA; \
- *pFIO_INEN &= ~PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_TRISTATE \
- do { \
- *pFIO_DIR &= ~PF_SDA; \
- *pFIO_INEN |= PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_READ ((*pFIO_FLAG_D & PF_SDA) != 0)
-#define I2C_SDA(bit) \
- do { \
- if (bit) \
- *pFIO_FLAG_S = PF_SDA; \
- else \
- *pFIO_FLAG_C = PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_SCL(bit) \
- do { \
- if (bit) \
- *pFIO_FLAG_S = PF_SCL; \
- else \
- *pFIO_FLAG_C = PF_SCL; \
- SSYNC(); \
- } while (0)
-#define I2C_DELAY udelay(5) /* 1/4 I2C clock duration */
-
-#endif
+#define CONFIG_SOFT_I2C_GPIO_SCL GPIO_PF3
+#define CONFIG_SOFT_I2C_GPIO_SDA GPIO_PF2
/*
diff --git a/include/configs/bf561-ezkit.h b/include/configs/bf561-ezkit.h
index 036bfe412..4e293b58a 100644
--- a/include/configs/bf561-ezkit.h
+++ b/include/configs/bf561-ezkit.h
@@ -112,46 +112,8 @@
* I2C Settings
*/
#define CONFIG_SOFT_I2C
-#ifdef CONFIG_SOFT_I2C
-#define PF_SCL PF0
-#define PF_SDA PF1
-#define I2C_INIT \
- do { \
- *pFIO0_DIR |= PF_SCL; \
- SSYNC(); \
- } while (0)
-#define I2C_ACTIVE \
- do { \
- *pFIO0_DIR |= PF_SDA; \
- *pFIO0_INEN &= ~PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_TRISTATE \
- do { \
- *pFIO0_DIR &= ~PF_SDA; \
- *pFIO0_INEN |= PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_READ ((*pFIO0_FLAG_D & PF_SDA) != 0)
-#define I2C_SDA(bit) \
- do { \
- if (bit) \
- *pFIO0_FLAG_S = PF_SDA; \
- else \
- *pFIO0_FLAG_C = PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_SCL(bit) \
- do { \
- if (bit) \
- *pFIO0_FLAG_S = PF_SCL; \
- else \
- *pFIO0_FLAG_C = PF_SCL; \
- SSYNC(); \
- } while (0)
-#define I2C_DELAY udelay(5) /* 1/4 I2C clock duration */
-
-#endif
+#define CONFIG_SOFT_I2C_GPIO_SCL GPIO_PF0
+#define CONFIG_SOFT_I2C_GPIO_SDA GPIO_PF1
/*
diff --git a/include/configs/bfin_adi_common.h b/include/configs/bfin_adi_common.h
index 901a32fb7..44762689c 100644
--- a/include/configs/bfin_adi_common.h
+++ b/include/configs/bfin_adi_common.h
@@ -68,6 +68,7 @@
# endif
# if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
# define CONFIG_CMD_I2C
+# define CONFIG_SOFT_I2C_READ_REPEATED_START
# endif
# ifdef CONFIG_SYS_NO_FLASH
# undef CONFIG_CMD_FLASH
diff --git a/include/configs/blackstamp.h b/include/configs/blackstamp.h
index aa3393316..85f08ea88 100644
--- a/include/configs/blackstamp.h
+++ b/include/configs/blackstamp.h
@@ -206,32 +206,8 @@
* them yet. You can (and probably should) change these values!
*/
#ifdef CONFIG_SOFT_I2C
-
-#define PF_SCL PF9
-#define PF_SDA PF8
-
-#define I2C_INIT do { *pFIO_DIR |= PF_SCL; SSYNC(); } while (0)
-#define I2C_ACTIVE do { *pFIO_DIR |= PF_SDA; *pFIO_INEN &= ~PF_SDA; SSYNC(); } while (0)
-#define I2C_TRISTATE do { *pFIO_DIR &= ~PF_SDA; *pFIO_INEN |= PF_SDA; SSYNC(); } while (0)
-#define I2C_READ ((*pFIO_FLAG_D & PF_SDA) != 0)
-#define I2C_SDA(bit) \
- do { \
- if (bit) \
- *pFIO_FLAG_S = PF_SDA; \
- else \
- *pFIO_FLAG_C = PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_SCL(bit) \
- do { \
- if (bit) \
- *pFIO_FLAG_S = PF_SCL; \
- else \
- *pFIO_FLAG_C = PF_SCL; \
- SSYNC(); \
- } while (0)
-#define I2C_DELAY udelay(5) /* 1/4 I2C clock duration */
-
+#define CONFIG_SOFT_I2C_GPIO_SCL GPIO_PF9
+#define CONFIG_SOFT_I2C_GPIO_SDA GPIO_PF8
#define CONFIG_SYS_I2C_SPEED 50000
#define CONFIG_SYS_I2C_SLAVE 0xFE
#endif
diff --git a/include/configs/ibf-dsp561.h b/include/configs/ibf-dsp561.h
index 2c0a263da..53b519711 100644
--- a/include/configs/ibf-dsp561.h
+++ b/include/configs/ibf-dsp561.h
@@ -112,33 +112,8 @@
* I2C Settings
*/
#define CONFIG_SOFT_I2C 1
-#define PF_SCL 0x1/*PF0*/
-#define PF_SDA 0x2/*PF1*/
-
-#ifdef CONFIG_SOFT_I2C
-#define I2C_INIT do { *pFIO0_DIR |= PF_SCL; SSYNC(); } while (0)
-#define I2C_ACTIVE do { *pFIO0_DIR |= PF_SDA; *pFIO0_INEN &= ~PF_SDA; SSYNC(); } while (0)
-#define I2C_TRISTATE do { *pFIO0_DIR &= ~PF_SDA; *pFIO0_INEN |= PF_SDA; SSYNC(); } while (0)
-#define I2C_READ ((*pFIO0_FLAG_D & PF_SDA) != 0)
-#define I2C_SDA(bit) \
- do { \
- if (bit) \
- *pFIO0_FLAG_S = PF_SDA; \
- else \
- *pFIO0_FLAG_C = PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_SCL(bit) \
- do { \
- if (bit) \
- *pFIO0_FLAG_S = PF_SCL; \
- else \
- *pFIO0_FLAG_C = PF_SCL; \
- SSYNC(); \
- } while (0)
-#define I2C_DELAY udelay(5) /* 1/4 I2C clock duration */
-
-#endif
+#define CONFIG_SOFT_I2C_GPIO_SCL GPIO_PF0
+#define CONFIG_SOFT_I2C_GPIO_SDA GPIO_PF1
/*
diff --git a/tools/jtagconsole b/tools/jtagconsole
index 24198c83c..d404fac5e 100755
--- a/tools/jtagconsole
+++ b/tools/jtagconsole
@@ -31,9 +31,9 @@ if [ -z "${ip}" ] || [ -n "$3" ] ; then
usage "Invalid number of arguments"
fi
-trap "stty icanon echo intr ^C" 0 2 3 5 10 13 15
+trap "stty icanon echo opost intr ^C" 0 2 3 5 10 13 15
echo "NOTE: the interrupt signal (normally ^C) has been remapped to ^T"
-stty -icanon -echo intr ^T
+stty -icanon -echo -opost intr ^T
nc ${ip} ${port}
exit 0
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-10-31 22:02:42 +0000