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-rw-r--r--board/esd/common/fpga.c343
1 files changed, 167 insertions, 176 deletions
diff --git a/board/esd/common/fpga.c b/board/esd/common/fpga.c
index ad56402..9e2be7e 100644
--- a/board/esd/common/fpga.c
+++ b/board/esd/common/fpga.c
@@ -37,22 +37,22 @@
#define MAX_ONES 226
#ifdef CFG_FPGA_PRG
-# define FPGA_PRG CFG_FPGA_PRG /* FPGA program pin (ppc output)*/
-# define FPGA_CLK CFG_FPGA_CLK /* FPGA clk pin (ppc output) */
-# define FPGA_DATA CFG_FPGA_DATA /* FPGA data pin (ppc output) */
-# define FPGA_DONE CFG_FPGA_DONE /* FPGA done pin (ppc input) */
-# define FPGA_INIT CFG_FPGA_INIT /* FPGA init pin (ppc input) */
+# define FPGA_PRG CFG_FPGA_PRG /* FPGA program pin (ppc output) */
+# define FPGA_CLK CFG_FPGA_CLK /* FPGA clk pin (ppc output) */
+# define FPGA_DATA CFG_FPGA_DATA /* FPGA data pin (ppc output) */
+# define FPGA_DONE CFG_FPGA_DONE /* FPGA done pin (ppc input) */
+# define FPGA_INIT CFG_FPGA_INIT /* FPGA init pin (ppc input) */
#else
-# define FPGA_PRG 0x04000000 /* FPGA program pin (ppc output) */
-# define FPGA_CLK 0x02000000 /* FPGA clk pin (ppc output) */
-# define FPGA_DATA 0x01000000 /* FPGA data pin (ppc output) */
-# define FPGA_DONE 0x00800000 /* FPGA done pin (ppc input) */
-# define FPGA_INIT 0x00400000 /* FPGA init pin (ppc input) */
+# define FPGA_PRG 0x04000000 /* FPGA program pin (ppc output) */
+# define FPGA_CLK 0x02000000 /* FPGA clk pin (ppc output) */
+# define FPGA_DATA 0x01000000 /* FPGA data pin (ppc output) */
+# define FPGA_DONE 0x00800000 /* FPGA done pin (ppc input) */
+# define FPGA_INIT 0x00400000 /* FPGA init pin (ppc input) */
#endif
-#define ERROR_FPGA_PRG_INIT_LOW -1 /* Timeout after PRG* asserted */
-#define ERROR_FPGA_PRG_INIT_HIGH -2 /* Timeout after PRG* deasserted */
-#define ERROR_FPGA_PRG_DONE -3 /* Timeout after programming */
+#define ERROR_FPGA_PRG_INIT_LOW -1 /* Timeout after PRG* asserted */
+#define ERROR_FPGA_PRG_INIT_HIGH -2 /* Timeout after PRG* deasserted */
+#define ERROR_FPGA_PRG_DONE -3 /* Timeout after programming */
#ifndef SET_FPGA
# define SET_FPGA(data) out32(GPIO0_OR, data)
@@ -76,13 +76,13 @@
SET_FPGA(FPGA_PRG_HIGH | FPGA_CLK_LOW | FPGA_DATA_HIGH); /* set clock to 0 */ \
SET_FPGA(FPGA_PRG_HIGH | FPGA_CLK_LOW | FPGA_DATA_HIGH); /* set data to 1 */ \
SET_FPGA(FPGA_PRG_HIGH | FPGA_CLK_HIGH | FPGA_DATA_HIGH); /* set clock to 1 */ \
- SET_FPGA(FPGA_PRG_HIGH | FPGA_CLK_HIGH | FPGA_DATA_HIGH);} /* set data to 1 */
+ SET_FPGA(FPGA_PRG_HIGH | FPGA_CLK_HIGH | FPGA_DATA_HIGH);} /* set data to 1 */
#define FPGA_WRITE_0 { \
SET_FPGA(FPGA_PRG_HIGH | FPGA_CLK_LOW | FPGA_DATA_HIGH); /* set clock to 0 */ \
SET_FPGA(FPGA_PRG_HIGH | FPGA_CLK_LOW | FPGA_DATA_LOW); /* set data to 0 */ \
SET_FPGA(FPGA_PRG_HIGH | FPGA_CLK_HIGH | FPGA_DATA_LOW); /* set clock to 1 */ \
- SET_FPGA(FPGA_PRG_HIGH | FPGA_CLK_HIGH | FPGA_DATA_HIGH);} /* set data to 1 */
+ SET_FPGA(FPGA_PRG_HIGH | FPGA_CLK_HIGH | FPGA_DATA_HIGH);} /* set data to 1 */
#ifndef FPGA_DONE_STATE
# define FPGA_DONE_STATE (in32(GPIO0_IR) & FPGA_DONE)
@@ -92,191 +92,182 @@
#endif
-static int fpga_boot(unsigned char *fpgadata, int size)
+static int fpga_boot (const unsigned char *fpgadata, int size)
{
- int i,index,len;
- int count;
+ int i, index, len;
+ int count;
+ unsigned char b;
+
#ifdef CFG_FPGA_SPARTAN2
- int j;
+ int j;
#else
- unsigned char b;
- int bit;
+ int bit;
#endif
- /* display infos on fpgaimage */
- index = 15;
- for (i=0; i<4; i++)
- {
- len = fpgadata[index];
- DBG("FPGA: %s\n", &(fpgadata[index+1]));
- index += len+3;
- }
+ /* display infos on fpgaimage */
+ index = 15;
+ for (i = 0; i < 4; i++) {
+ len = fpgadata[index];
+ DBG ("FPGA: %s\n", &(fpgadata[index + 1]));
+ index += len + 3;
+ }
#ifdef CFG_FPGA_SPARTAN2
- /* search for preamble 0xFFFFFFFF */
- while (1)
- {
- if ((fpgadata[index] == 0xff) && (fpgadata[index+1] == 0xff) &&
- (fpgadata[index+2] == 0xff) && (fpgadata[index+3] == 0xff))
- break; /* preamble found */
- else
- index++;
- }
+ /* search for preamble 0xFFFFFFFF */
+ while (1) {
+ if ((fpgadata[index] == 0xff) && (fpgadata[index + 1] == 0xff)
+ && (fpgadata[index + 2] == 0xff)
+ && (fpgadata[index + 3] == 0xff))
+ break; /* preamble found */
+ else
+ index++;
+ }
#else
- /* search for preamble 0xFF2X */
- for (index = 0; index < size-1 ; index++)
- {
- if ((fpgadata[index] == 0xff) && ((fpgadata[index+1] & 0xf0) == 0x30))
- break;
- }
- index += 2;
+ /* search for preamble 0xFF2X */
+ for (index = 0; index < size - 1; index++) {
+ if ((fpgadata[index] == 0xff)
+ && ((fpgadata[index + 1] & 0xf0) == 0x30))
+ break;
+ }
+ index += 2;
#endif
- DBG("FPGA: configdata starts at position 0x%x\n",index);
- DBG("FPGA: length of fpga-data %d\n", size-index);
+ DBG ("FPGA: configdata starts at position 0x%x\n", index);
+ DBG ("FPGA: length of fpga-data %d\n", size - index);
- /*
- * Setup port pins for fpga programming
- */
+ /*
+ * Setup port pins for fpga programming
+ */
#ifndef CONFIG_M5249
- out32(GPIO0_ODR, 0x00000000); /* no open drain pins */
- out32(GPIO0_TCR, in32(GPIO0_TCR) | FPGA_PRG | FPGA_CLK | FPGA_DATA); /* setup for output */
+ out32 (GPIO0_ODR, 0x00000000); /* no open drain pins */
+ out32 (GPIO0_TCR, in32 (GPIO0_TCR) | FPGA_PRG | FPGA_CLK | FPGA_DATA); /* setup for output */
#endif
- SET_FPGA(FPGA_PRG_HIGH | FPGA_CLK_HIGH | FPGA_DATA_HIGH); /* set pins to high */
-
- DBG("%s, ",(FPGA_DONE_STATE == 0) ? "NOT DONE" : "DONE" );
- DBG("%s\n",(FPGA_INIT_STATE == 0) ? "NOT INIT" : "INIT" );
-
- /*
- * Init fpga by asserting and deasserting PROGRAM*
- */
- SET_FPGA(FPGA_PRG_LOW | FPGA_CLK_HIGH | FPGA_DATA_HIGH); /* set prog active */
-
- /* Wait for FPGA init line low */
- count = 0;
- while (FPGA_INIT_STATE)
- {
- udelay(1000); /* wait 1ms */
- /* Check for timeout - 100us max, so use 3ms */
- if (count++ > 3)
- {
- DBG("FPGA: Booting failed!\n");
- return ERROR_FPGA_PRG_INIT_LOW;
+ SET_FPGA (FPGA_PRG_HIGH | FPGA_CLK_HIGH | FPGA_DATA_HIGH); /* set pins to high */
+
+ DBG ("%s, ", (FPGA_DONE_STATE == 0) ? "NOT DONE" : "DONE");
+ DBG ("%s\n", (FPGA_INIT_STATE == 0) ? "NOT INIT" : "INIT");
+
+ /*
+ * Init fpga by asserting and deasserting PROGRAM*
+ */
+ SET_FPGA (FPGA_PRG_LOW | FPGA_CLK_HIGH | FPGA_DATA_HIGH); /* set prog active */
+
+ /* Wait for FPGA init line low */
+ count = 0;
+ while (FPGA_INIT_STATE) {
+ udelay (1000); /* wait 1ms */
+ /* Check for timeout - 100us max, so use 3ms */
+ if (count++ > 3) {
+ DBG ("FPGA: Booting failed!\n");
+ return ERROR_FPGA_PRG_INIT_LOW;
+ }
}
- }
-
- DBG("%s, ",(FPGA_DONE_STATE == 0) ? "NOT DONE" : "DONE" );
- DBG("%s\n",(FPGA_INIT_STATE == 0) ? "NOT INIT" : "INIT" );
-
- /* deassert PROGRAM* */
- SET_FPGA(FPGA_PRG_HIGH | FPGA_CLK_HIGH | FPGA_DATA_HIGH); /* set prog inactive */
-
- /* Wait for FPGA end of init period . */
- count = 0;
- while (!(FPGA_INIT_STATE))
- {
- udelay(1000); /* wait 1ms */
- /* Check for timeout */
- if (count++ > 3)
- {
- DBG("FPGA: Booting failed!\n");
- return ERROR_FPGA_PRG_INIT_HIGH;
+
+ DBG ("%s, ", (FPGA_DONE_STATE == 0) ? "NOT DONE" : "DONE");
+ DBG ("%s\n", (FPGA_INIT_STATE == 0) ? "NOT INIT" : "INIT");
+
+ /* deassert PROGRAM* */
+ SET_FPGA (FPGA_PRG_HIGH | FPGA_CLK_HIGH | FPGA_DATA_HIGH); /* set prog inactive */
+
+ /* Wait for FPGA end of init period . */
+ count = 0;
+ while (!(FPGA_INIT_STATE)) {
+ udelay (1000); /* wait 1ms */
+ /* Check for timeout */
+ if (count++ > 3) {
+ DBG ("FPGA: Booting failed!\n");
+ return ERROR_FPGA_PRG_INIT_HIGH;
+ }
}
- }
- DBG("%s, ",(FPGA_DONE_STATE == 0) ? "NOT DONE" : "DONE" );
- DBG("%s\n",(FPGA_INIT_STATE == 0) ? "NOT INIT" : "INIT" );
+ DBG ("%s, ", (FPGA_DONE_STATE == 0) ? "NOT DONE" : "DONE");
+ DBG ("%s\n", (FPGA_INIT_STATE == 0) ? "NOT INIT" : "INIT");
- DBG("write configuration data into fpga\n");
- /* write configuration-data into fpga... */
+ DBG ("write configuration data into fpga\n");
+ /* write configuration-data into fpga... */
#ifdef CFG_FPGA_SPARTAN2
- /*
- * Load uncompressed image into fpga
- */
- for (i=index; i<size; i++)
- {
- for (j=0; j<8; j++)
- {
- if ((fpgadata[i] & 0x80) == 0x80)
- {
- FPGA_WRITE_1;
- }
- else
- {
- FPGA_WRITE_0;
- }
- fpgadata[i] <<= 1;
+ /*
+ * Load uncompressed image into fpga
+ */
+ for (i = index; i < size; i++) {
+ b = fpgadata[i];
+ for (j = 0; j < 8; j++) {
+ if ((b & 0x80) == 0x80) {
+ FPGA_WRITE_1;
+ } else {
+ FPGA_WRITE_0;
+ }
+ b <<= 1;
+ }
}
- }
#else
- /* send 0xff 0x20 */
- FPGA_WRITE_1; FPGA_WRITE_1; FPGA_WRITE_1; FPGA_WRITE_1;
- FPGA_WRITE_1; FPGA_WRITE_1; FPGA_WRITE_1; FPGA_WRITE_1;
- FPGA_WRITE_0; FPGA_WRITE_0; FPGA_WRITE_1; FPGA_WRITE_0;
- FPGA_WRITE_0; FPGA_WRITE_0; FPGA_WRITE_0; FPGA_WRITE_0;
-
- /*
- ** Bit_DeCompression
- ** Code 1 .. maxOnes : n '1's followed by '0'
- ** maxOnes + 1 .. maxOnes + 1 : n - 1 '1's no '0'
- ** maxOnes + 2 .. 254 : n - (maxOnes + 2) '0's followed by '1'
- ** 255 : '1'
- */
-
- for (i=index; i<size; i++)
- {
- b = fpgadata[i];
- if ((b >= 1) && (b <= MAX_ONES))
- {
- for(bit=0; bit<b; bit++)
- {
- FPGA_WRITE_1;
- }
- FPGA_WRITE_0;
- }
- else if (b == (MAX_ONES+1))
- {
- for(bit=1; bit<b; bit++)
- {
- FPGA_WRITE_1;
- }
- }
- else if ((b >= (MAX_ONES+2)) && (b <= 254))
- {
- for(bit=0; bit<(b-(MAX_ONES+2)); bit++)
- {
- FPGA_WRITE_0;
- }
- FPGA_WRITE_1;
- }
- else if (b == 255)
- {
- FPGA_WRITE_1;
+ /* send 0xff 0x20 */
+ FPGA_WRITE_1;
+ FPGA_WRITE_1;
+ FPGA_WRITE_1;
+ FPGA_WRITE_1;
+ FPGA_WRITE_1;
+ FPGA_WRITE_1;
+ FPGA_WRITE_1;
+ FPGA_WRITE_1;
+ FPGA_WRITE_0;
+ FPGA_WRITE_0;
+ FPGA_WRITE_1;
+ FPGA_WRITE_0;
+ FPGA_WRITE_0;
+ FPGA_WRITE_0;
+ FPGA_WRITE_0;
+ FPGA_WRITE_0;
+
+ /*
+ ** Bit_DeCompression
+ ** Code 1 .. maxOnes : n '1's followed by '0'
+ ** maxOnes + 1 .. maxOnes + 1 : n - 1 '1's no '0'
+ ** maxOnes + 2 .. 254 : n - (maxOnes + 2) '0's followed by '1'
+ ** 255 : '1'
+ */
+
+ for (i = index; i < size; i++) {
+ b = fpgadata[i];
+ if ((b >= 1) && (b <= MAX_ONES)) {
+ for (bit = 0; bit < b; bit++) {
+ FPGA_WRITE_1;
+ }
+ FPGA_WRITE_0;
+ } else if (b == (MAX_ONES + 1)) {
+ for (bit = 1; bit < b; bit++) {
+ FPGA_WRITE_1;
+ }
+ } else if ((b >= (MAX_ONES + 2)) && (b <= 254)) {
+ for (bit = 0; bit < (b - (MAX_ONES + 2)); bit++) {
+ FPGA_WRITE_0;
+ }
+ FPGA_WRITE_1;
+ } else if (b == 255) {
+ FPGA_WRITE_1;
+ }
}
- }
#endif
- DBG("%s, ",(FPGA_DONE_STATE == 0) ? "NOT DONE" : "DONE" );
- DBG("%s\n",(FPGA_INIT_STATE == 0) ? "NOT INIT" : "INIT" );
-
- /*
- * Check if fpga's DONE signal - correctly booted ?
- */
-
- /* Wait for FPGA end of programming period . */
- count = 0;
- while (!(FPGA_DONE_STATE))
- {
- udelay(1000); /* wait 1ms */
- /* Check for timeout */
- if (count++ > 3)
- {
- DBG("FPGA: Booting failed!\n");
- return ERROR_FPGA_PRG_DONE;
+ DBG ("%s, ", (FPGA_DONE_STATE == 0) ? "NOT DONE" : "DONE");
+ DBG ("%s\n", (FPGA_INIT_STATE == 0) ? "NOT INIT" : "INIT");
+
+ /*
+ * Check if fpga's DONE signal - correctly booted ?
+ */
+
+ /* Wait for FPGA end of programming period . */
+ count = 0;
+ while (!(FPGA_DONE_STATE)) {
+ udelay (1000); /* wait 1ms */
+ /* Check for timeout */
+ if (count++ > 3) {
+ DBG ("FPGA: Booting failed!\n");
+ return ERROR_FPGA_PRG_DONE;
+ }
}
- }
- DBG("FPGA: Booting successful!\n");
- return 0;
+ DBG ("FPGA: Booting successful!\n");
+ return 0;
}
generated by cgit v1.1 at 2024-12-16 16:53:27 +0000