diff options
Diffstat (limited to 'board/prodrive/common/fpga.c')
| -rw-r--r-- | board/prodrive/common/fpga.c | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/board/prodrive/common/fpga.c b/board/prodrive/common/fpga.c deleted file mode 100644 index 9dce131376..0000000000 --- a/board/prodrive/common/fpga.c +++ /dev/null @@ -1,167 +0,0 @@ -/* - * (C) Copyright 2006 - * Stefan Roese, DENX Software Engineering, sr@denx.de. - * - * (C) Copyright 2001-2004 - * Matthias Fuchs, esd gmbh germany, matthias.fuchs@esd-electronics.com - * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/processor.h> -#include <command.h> - -/* ------------------------------------------------------------------------- */ - -#ifdef FPGA_DEBUG -#define DBG(x...) printf(x) -#else -#define DBG(x...) -#endif /* DEBUG */ - -#define FPGA_PRG CONFIG_SYS_FPGA_PRG /* FPGA program pin (cpu output)*/ -#define FPGA_CLK CONFIG_SYS_FPGA_CLK /* FPGA clk pin (cpu output) */ -#define FPGA_DATA CONFIG_SYS_FPGA_DATA /* FPGA data pin (cpu output) */ -#define FPGA_DONE CONFIG_SYS_FPGA_DONE /* FPGA done pin (cpu input) */ -#define FPGA_INIT CONFIG_SYS_FPGA_INIT /* FPGA init pin (cpu input) */ - -#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 OLD_VAL -# define OLD_VAL 0 -#endif - -#if 0 /* test-only */ -#define FPGA_WRITE_1 { \ - SET_FPGA(OLD_VAL | FPGA_PRG | 0 | FPGA_DATA); /* set clock to 0 */ \ - SET_FPGA(OLD_VAL | FPGA_PRG | 0 | FPGA_DATA); /* set data to 1 */ \ - SET_FPGA(OLD_VAL | FPGA_PRG | FPGA_CLK | FPGA_DATA); /* set clock to 1 */ \ - SET_FPGA(OLD_VAL | FPGA_PRG | FPGA_CLK | FPGA_DATA);} /* set data to 1 */ - -#define FPGA_WRITE_0 { \ - SET_FPGA(OLD_VAL | FPGA_PRG | 0 | FPGA_DATA); /* set clock to 0 */ \ - SET_FPGA(OLD_VAL | FPGA_PRG | 0 | 0 ); /* set data to 0 */ \ - SET_FPGA(OLD_VAL | FPGA_PRG | FPGA_CLK | 0 ); /* set clock to 1 */ \ - SET_FPGA(OLD_VAL | FPGA_PRG | FPGA_CLK | FPGA_DATA);} /* set data to 1 */ -#else -#define FPGA_WRITE_1 { \ - SET_FPGA(OLD_VAL | FPGA_PRG | 0 | FPGA_DATA); /* set data to 1 */ \ - SET_FPGA(OLD_VAL | FPGA_PRG | FPGA_CLK | FPGA_DATA);} /* set data to 1 */ - -#define FPGA_WRITE_0 { \ - SET_FPGA(OLD_VAL | FPGA_PRG | 0 | 0 ); /* set data to 0 */ \ - SET_FPGA(OLD_VAL | FPGA_PRG | FPGA_CLK | 0 );} /* set data to 1 */ -#endif - -static int fpga_boot(unsigned char *fpgadata, int size) -{ - int i,index,len; - int count; - int j; - - /* 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; - } - - /* 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++; - } - - 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 - */ - SET_FPGA(FPGA_PRG | FPGA_CLK | FPGA_DATA); /* 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(0 | FPGA_CLK | FPGA_DATA); /* 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 | FPGA_CLK | FPGA_DATA); /* 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("write configuration data into fpga\n"); - /* write configuration-data into fpga... */ - - /* - * 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; - } - } - - 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; -} |