diff options
Diffstat (limited to 'board/esd/common/fpga.c')
| -rw-r--r-- | board/esd/common/fpga.c | 75 |
1 files changed, 50 insertions, 25 deletions
diff --git a/board/esd/common/fpga.c b/board/esd/common/fpga.c index f27943f..ad56402 100644 --- a/board/esd/common/fpga.c +++ b/board/esd/common/fpga.c @@ -1,5 +1,5 @@ /* - * (C) Copyright 2001-2003 + * (C) Copyright 2001-2004 * Matthias Fuchs, esd gmbh germany, matthias.fuchs@esd-electronics.com * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com * @@ -54,19 +54,42 @@ #define ERROR_FPGA_PRG_INIT_HIGH -2 /* Timeout after PRG* deasserted */ #define ERROR_FPGA_PRG_DONE -3 /* Timeout after programming */ -#define SET_FPGA(data) out32(GPIO0_OR, data) +#ifndef SET_FPGA +# define SET_FPGA(data) out32(GPIO0_OR, data) +#endif + +#ifdef FPGA_PROG_ACTIVE_HIGH +# define FPGA_PRG_LOW FPGA_PRG +# define FPGA_PRG_HIGH 0 +#else +# define FPGA_PRG_LOW 0 +# define FPGA_PRG_HIGH FPGA_PRG +#endif + +#define FPGA_CLK_LOW 0 +#define FPGA_CLK_HIGH FPGA_CLK -#define FPGA_WRITE_1 { \ - SET_FPGA(FPGA_PRG | FPGA_DATA); /* set clock to 0 */ \ - SET_FPGA(FPGA_PRG | FPGA_DATA); /* set data to 1 */ \ - SET_FPGA(FPGA_PRG | FPGA_CLK | FPGA_DATA); /* set clock to 1 */ \ - SET_FPGA(FPGA_PRG | FPGA_CLK | FPGA_DATA);} /* set data to 1 */ +#define FPGA_DATA_LOW 0 +#define FPGA_DATA_HIGH FPGA_DATA + +#define FPGA_WRITE_1 { \ + 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 */ #define FPGA_WRITE_0 { \ - SET_FPGA(FPGA_PRG | FPGA_DATA); /* set clock to 0 */ \ - SET_FPGA(FPGA_PRG); /* set data to 0 */ \ - SET_FPGA(FPGA_PRG | FPGA_CLK); /* set clock to 1 */ \ - SET_FPGA(FPGA_PRG | FPGA_CLK | FPGA_DATA);} /* set data to 1 */ + 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 */ + +#ifndef FPGA_DONE_STATE +# define FPGA_DONE_STATE (in32(GPIO0_IR) & FPGA_DONE) +#endif +#ifndef FPGA_INIT_STATE +# define FPGA_INIT_STATE (in32(GPIO0_IR) & FPGA_INIT) +#endif static int fpga_boot(unsigned char *fpgadata, int size) @@ -115,21 +138,23 @@ static int fpga_boot(unsigned char *fpgadata, int size) /* * 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_OR, in32(GPIO0_OR) | FPGA_PRG | FPGA_CLK | FPGA_DATA); /* set pins to high */ +#endif + SET_FPGA(FPGA_PRG_HIGH | FPGA_CLK_HIGH | FPGA_DATA_HIGH); /* set pins to high */ - DBG("%s, ",((in32(GPIO0_IR) & FPGA_DONE) == 0) ? "NOT DONE" : "DONE" ); - DBG("%s\n",((in32(GPIO0_IR) & FPGA_INIT) == 0) ? "NOT INIT" : "INIT" ); + 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_CLK | FPGA_DATA); + SET_FPGA(FPGA_PRG_LOW | FPGA_CLK_HIGH | FPGA_DATA_HIGH); /* set prog active */ /* Wait for FPGA init line low */ count = 0; - while (in32(GPIO0_IR) & FPGA_INIT) + while (FPGA_INIT_STATE) { udelay(1000); /* wait 1ms */ /* Check for timeout - 100us max, so use 3ms */ @@ -140,15 +165,15 @@ static int fpga_boot(unsigned char *fpgadata, int size) } } - DBG("%s, ",((in32(GPIO0_IR) & FPGA_DONE) == 0) ? "NOT DONE" : "DONE" ); - DBG("%s\n",((in32(GPIO0_IR) & FPGA_INIT) == 0) ? "NOT INIT" : "INIT" ); + 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 | FPGA_CLK | FPGA_DATA); + SET_FPGA(FPGA_PRG_HIGH | FPGA_CLK_HIGH | FPGA_DATA_HIGH); /* set prog inactive */ /* Wait for FPGA end of init period . */ count = 0; - while (!(in32(GPIO0_IR) & FPGA_INIT)) + while (!(FPGA_INIT_STATE)) { udelay(1000); /* wait 1ms */ /* Check for timeout */ @@ -159,8 +184,8 @@ static int fpga_boot(unsigned char *fpgadata, int size) } } - DBG("%s, ",((in32(GPIO0_IR) & FPGA_DONE) == 0) ? "NOT DONE" : "DONE" ); - DBG("%s\n",((in32(GPIO0_IR) & FPGA_INIT) == 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... */ @@ -232,8 +257,8 @@ static int fpga_boot(unsigned char *fpgadata, int size) } #endif - DBG("%s, ",((in32(GPIO0_IR) & FPGA_DONE) == 0) ? "NOT DONE" : "DONE" ); - DBG("%s\n",((in32(GPIO0_IR) & FPGA_INIT) == 0) ? "NOT INIT" : "INIT" ); + 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 ? @@ -241,7 +266,7 @@ static int fpga_boot(unsigned char *fpgadata, int size) /* Wait for FPGA end of programming period . */ count = 0; - while (!(in32(GPIO0_IR) & FPGA_DONE)) + while (!(FPGA_DONE_STATE)) { udelay(1000); /* wait 1ms */ /* Check for timeout */ |