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Diffstat (limited to 'common/spartan3.c')
| -rw-r--r-- | common/spartan3.c | 668 |
1 files changed, 0 insertions, 668 deletions
diff --git a/common/spartan3.c b/common/spartan3.c deleted file mode 100644 index 9ce41f1..0000000 --- a/common/spartan3.c +++ /dev/null @@ -1,668 +0,0 @@ -/* - * (C) Copyright 2002 - * Rich Ireland, Enterasys Networks, rireland@enterasys.com. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - * - */ - -/* - * Configuration support for Xilinx Spartan3 devices. Based - * on spartan2.c (Rich Ireland, rireland@enterasys.com). - */ - -#include <common.h> /* core U-Boot definitions */ -#include <spartan3.h> /* Spartan-II device family */ - -/* Define FPGA_DEBUG to get debug printf's */ -#ifdef FPGA_DEBUG -#define PRINTF(fmt,args...) printf (fmt ,##args) -#else -#define PRINTF(fmt,args...) -#endif - -#undef CONFIG_SYS_FPGA_CHECK_BUSY -#undef CONFIG_SYS_FPGA_PROG_FEEDBACK - -/* Note: The assumption is that we cannot possibly run fast enough to - * overrun the device (the Slave Parallel mode can free run at 50MHz). - * If there is a need to operate slower, define CONFIG_FPGA_DELAY in - * the board config file to slow things down. - */ -#ifndef CONFIG_FPGA_DELAY -#define CONFIG_FPGA_DELAY() -#endif - -#ifndef CONFIG_SYS_FPGA_WAIT -#define CONFIG_SYS_FPGA_WAIT CONFIG_SYS_HZ/100 /* 10 ms */ -#endif - -static int Spartan3_sp_load( Xilinx_desc *desc, void *buf, size_t bsize ); -static int Spartan3_sp_dump( Xilinx_desc *desc, void *buf, size_t bsize ); -/* static int Spartan3_sp_info( Xilinx_desc *desc ); */ -static int Spartan3_sp_reloc( Xilinx_desc *desc, ulong reloc_offset ); - -static int Spartan3_ss_load( Xilinx_desc *desc, void *buf, size_t bsize ); -static int Spartan3_ss_dump( Xilinx_desc *desc, void *buf, size_t bsize ); -/* static int Spartan3_ss_info( Xilinx_desc *desc ); */ -static int Spartan3_ss_reloc( Xilinx_desc *desc, ulong reloc_offset ); - -/* ------------------------------------------------------------------------- */ -/* Spartan-II Generic Implementation */ -int Spartan3_load (Xilinx_desc * desc, void *buf, size_t bsize) -{ - int ret_val = FPGA_FAIL; - - switch (desc->iface) { - case slave_serial: - PRINTF ("%s: Launching Slave Serial Load\n", __FUNCTION__); - ret_val = Spartan3_ss_load (desc, buf, bsize); - break; - - case slave_parallel: - PRINTF ("%s: Launching Slave Parallel Load\n", __FUNCTION__); - ret_val = Spartan3_sp_load (desc, buf, bsize); - break; - - default: - printf ("%s: Unsupported interface type, %d\n", - __FUNCTION__, desc->iface); - } - - return ret_val; -} - -int Spartan3_dump (Xilinx_desc * desc, void *buf, size_t bsize) -{ - int ret_val = FPGA_FAIL; - - switch (desc->iface) { - case slave_serial: - PRINTF ("%s: Launching Slave Serial Dump\n", __FUNCTION__); - ret_val = Spartan3_ss_dump (desc, buf, bsize); - break; - - case slave_parallel: - PRINTF ("%s: Launching Slave Parallel Dump\n", __FUNCTION__); - ret_val = Spartan3_sp_dump (desc, buf, bsize); - break; - - default: - printf ("%s: Unsupported interface type, %d\n", - __FUNCTION__, desc->iface); - } - - return ret_val; -} - -int Spartan3_info( Xilinx_desc *desc ) -{ - return FPGA_SUCCESS; -} - - -int Spartan3_reloc (Xilinx_desc * desc, ulong reloc_offset) -{ - int ret_val = FPGA_FAIL; /* assume a failure */ - - if (desc->family != Xilinx_Spartan3) { - printf ("%s: Unsupported family type, %d\n", - __FUNCTION__, desc->family); - return FPGA_FAIL; - } else - switch (desc->iface) { - case slave_serial: - ret_val = Spartan3_ss_reloc (desc, reloc_offset); - break; - - case slave_parallel: - ret_val = Spartan3_sp_reloc (desc, reloc_offset); - break; - - default: - printf ("%s: Unsupported interface type, %d\n", - __FUNCTION__, desc->iface); - } - - return ret_val; -} - - -/* ------------------------------------------------------------------------- */ -/* Spartan-II Slave Parallel Generic Implementation */ - -static int Spartan3_sp_load (Xilinx_desc * desc, void *buf, size_t bsize) -{ - int ret_val = FPGA_FAIL; /* assume the worst */ - Xilinx_Spartan3_Slave_Parallel_fns *fn = desc->iface_fns; - - PRINTF ("%s: start with interface functions @ 0x%p\n", - __FUNCTION__, fn); - - if (fn) { - size_t bytecount = 0; - unsigned char *data = (unsigned char *) buf; - int cookie = desc->cookie; /* make a local copy */ - unsigned long ts; /* timestamp */ - - PRINTF ("%s: Function Table:\n" - "ptr:\t0x%p\n" - "struct: 0x%p\n" - "pre: 0x%p\n" - "pgm:\t0x%p\n" - "init:\t0x%p\n" - "err:\t0x%p\n" - "clk:\t0x%p\n" - "cs:\t0x%p\n" - "wr:\t0x%p\n" - "read data:\t0x%p\n" - "write data:\t0x%p\n" - "busy:\t0x%p\n" - "abort:\t0x%p\n", - "post:\t0x%p\n\n", - __FUNCTION__, &fn, fn, fn->pre, fn->pgm, fn->init, fn->err, - fn->clk, fn->cs, fn->wr, fn->rdata, fn->wdata, fn->busy, - fn->abort, fn->post); - - /* - * This code is designed to emulate the "Express Style" - * Continuous Data Loading in Slave Parallel Mode for - * the Spartan-II Family. - */ -#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK - printf ("Loading FPGA Device %d...\n", cookie); -#endif - /* - * Run the pre configuration function if there is one. - */ - if (*fn->pre) { - (*fn->pre) (cookie); - } - - /* Establish the initial state */ - (*fn->pgm) (TRUE, TRUE, cookie); /* Assert the program, commit */ - - /* Get ready for the burn */ - CONFIG_FPGA_DELAY (); - (*fn->pgm) (FALSE, TRUE, cookie); /* Deassert the program, commit */ - - ts = get_timer (0); /* get current time */ - /* Now wait for INIT and BUSY to go high */ - do { - CONFIG_FPGA_DELAY (); - if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT) { /* check the time */ - puts ("** Timeout waiting for INIT to clear.\n"); - (*fn->abort) (cookie); /* abort the burn */ - return FPGA_FAIL; - } - } while ((*fn->init) (cookie) && (*fn->busy) (cookie)); - - (*fn->wr) (TRUE, TRUE, cookie); /* Assert write, commit */ - (*fn->cs) (TRUE, TRUE, cookie); /* Assert chip select, commit */ - (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */ - - /* Load the data */ - while (bytecount < bsize) { - /* XXX - do we check for an Ctrl-C press in here ??? */ - /* XXX - Check the error bit? */ - - (*fn->wdata) (data[bytecount++], TRUE, cookie); /* write the data */ - CONFIG_FPGA_DELAY (); - (*fn->clk) (FALSE, TRUE, cookie); /* Deassert the clock pin */ - CONFIG_FPGA_DELAY (); - (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */ - -#ifdef CONFIG_SYS_FPGA_CHECK_BUSY - ts = get_timer (0); /* get current time */ - while ((*fn->busy) (cookie)) { - /* XXX - we should have a check in here somewhere to - * make sure we aren't busy forever... */ - - CONFIG_FPGA_DELAY (); - (*fn->clk) (FALSE, TRUE, cookie); /* Deassert the clock pin */ - CONFIG_FPGA_DELAY (); - (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */ - - if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT) { /* check the time */ - puts ("** Timeout waiting for BUSY to clear.\n"); - (*fn->abort) (cookie); /* abort the burn */ - return FPGA_FAIL; - } - } -#endif - -#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK - if (bytecount % (bsize / 40) == 0) - putc ('.'); /* let them know we are alive */ -#endif - } - - CONFIG_FPGA_DELAY (); - (*fn->cs) (FALSE, TRUE, cookie); /* Deassert the chip select */ - (*fn->wr) (FALSE, TRUE, cookie); /* Deassert the write pin */ - -#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK - putc ('\n'); /* terminate the dotted line */ -#endif - - /* now check for done signal */ - ts = get_timer (0); /* get current time */ - ret_val = FPGA_SUCCESS; - while ((*fn->done) (cookie) == FPGA_FAIL) { - /* XXX - we should have a check in here somewhere to - * make sure we aren't busy forever... */ - - CONFIG_FPGA_DELAY (); - (*fn->clk) (FALSE, TRUE, cookie); /* Deassert the clock pin */ - CONFIG_FPGA_DELAY (); - (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */ - - if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT) { /* check the time */ - puts ("** Timeout waiting for DONE to clear.\n"); - (*fn->abort) (cookie); /* abort the burn */ - ret_val = FPGA_FAIL; - break; - } - } - - if (ret_val == FPGA_SUCCESS) { -#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK - puts ("Done.\n"); -#endif - } - /* - * Run the post configuration function if there is one. - */ - if (*fn->post) { - (*fn->post) (cookie); - } - - else { -#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK - puts ("Fail.\n"); -#endif - } - - } else { - printf ("%s: NULL Interface function table!\n", __FUNCTION__); - } - - return ret_val; -} - -static int Spartan3_sp_dump (Xilinx_desc * desc, void *buf, size_t bsize) -{ - int ret_val = FPGA_FAIL; /* assume the worst */ - Xilinx_Spartan3_Slave_Parallel_fns *fn = desc->iface_fns; - - if (fn) { - unsigned char *data = (unsigned char *) buf; - size_t bytecount = 0; - int cookie = desc->cookie; /* make a local copy */ - - printf ("Starting Dump of FPGA Device %d...\n", cookie); - - (*fn->cs) (TRUE, TRUE, cookie); /* Assert chip select, commit */ - (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */ - - /* dump the data */ - while (bytecount < bsize) { - /* XXX - do we check for an Ctrl-C press in here ??? */ - - (*fn->clk) (FALSE, TRUE, cookie); /* Deassert the clock pin */ - (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */ - (*fn->rdata) (&(data[bytecount++]), cookie); /* read the data */ -#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK - if (bytecount % (bsize / 40) == 0) - putc ('.'); /* let them know we are alive */ -#endif - } - - (*fn->cs) (FALSE, FALSE, cookie); /* Deassert the chip select */ - (*fn->clk) (FALSE, TRUE, cookie); /* Deassert the clock pin */ - (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */ - -#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK - putc ('\n'); /* terminate the dotted line */ -#endif - puts ("Done.\n"); - - /* XXX - checksum the data? */ - } else { - printf ("%s: NULL Interface function table!\n", __FUNCTION__); - } - - return ret_val; -} - - -static int Spartan3_sp_reloc (Xilinx_desc * desc, ulong reloc_offset) -{ - int ret_val = FPGA_FAIL; /* assume the worst */ - Xilinx_Spartan3_Slave_Parallel_fns *fn_r, *fn = - (Xilinx_Spartan3_Slave_Parallel_fns *) (desc->iface_fns); - - if (fn) { - ulong addr; - - /* Get the relocated table address */ - addr = (ulong) fn + reloc_offset; - fn_r = (Xilinx_Spartan3_Slave_Parallel_fns *) addr; - - if (!fn_r->relocated) { - - if (memcmp (fn_r, fn, - sizeof (Xilinx_Spartan3_Slave_Parallel_fns)) - == 0) { - /* good copy of the table, fix the descriptor pointer */ - desc->iface_fns = fn_r; - } else { - PRINTF ("%s: Invalid function table at 0x%p\n", - __FUNCTION__, fn_r); - return FPGA_FAIL; - } - - PRINTF ("%s: Relocating descriptor at 0x%p\n", __FUNCTION__, - desc); - - addr = (ulong) (fn->pre) + reloc_offset; - fn_r->pre = (Xilinx_pre_fn) addr; - - addr = (ulong) (fn->pgm) + reloc_offset; - fn_r->pgm = (Xilinx_pgm_fn) addr; - - addr = (ulong) (fn->init) + reloc_offset; - fn_r->init = (Xilinx_init_fn) addr; - - addr = (ulong) (fn->done) + reloc_offset; - fn_r->done = (Xilinx_done_fn) addr; - - addr = (ulong) (fn->clk) + reloc_offset; - fn_r->clk = (Xilinx_clk_fn) addr; - - addr = (ulong) (fn->err) + reloc_offset; - fn_r->err = (Xilinx_err_fn) addr; - - addr = (ulong) (fn->cs) + reloc_offset; - fn_r->cs = (Xilinx_cs_fn) addr; - - addr = (ulong) (fn->wr) + reloc_offset; - fn_r->wr = (Xilinx_wr_fn) addr; - - addr = (ulong) (fn->rdata) + reloc_offset; - fn_r->rdata = (Xilinx_rdata_fn) addr; - - addr = (ulong) (fn->wdata) + reloc_offset; - fn_r->wdata = (Xilinx_wdata_fn) addr; - - addr = (ulong) (fn->busy) + reloc_offset; - fn_r->busy = (Xilinx_busy_fn) addr; - - addr = (ulong) (fn->abort) + reloc_offset; - fn_r->abort = (Xilinx_abort_fn) addr; - - addr = (ulong) (fn->post) + reloc_offset; - fn_r->post = (Xilinx_post_fn) addr; - - fn_r->relocated = TRUE; - - } else { - /* this table has already been moved */ - /* XXX - should check to see if the descriptor is correct */ - desc->iface_fns = fn_r; - } - - ret_val = FPGA_SUCCESS; - } else { - printf ("%s: NULL Interface function table!\n", __FUNCTION__); - } - - return ret_val; - -} - -/* ------------------------------------------------------------------------- */ - -static int Spartan3_ss_load (Xilinx_desc * desc, void *buf, size_t bsize) -{ - int ret_val = FPGA_FAIL; /* assume the worst */ - Xilinx_Spartan3_Slave_Serial_fns *fn = desc->iface_fns; - int i; - unsigned char val; - - PRINTF ("%s: start with interface functions @ 0x%p\n", - __FUNCTION__, fn); - - if (fn) { - size_t bytecount = 0; - unsigned char *data = (unsigned char *) buf; - int cookie = desc->cookie; /* make a local copy */ - unsigned long ts; /* timestamp */ - - PRINTF ("%s: Function Table:\n" - "ptr:\t0x%p\n" - "struct: 0x%p\n" - "pgm:\t0x%p\n" - "init:\t0x%p\n" - "clk:\t0x%p\n" - "wr:\t0x%p\n" - "done:\t0x%p\n\n", - __FUNCTION__, &fn, fn, fn->pgm, fn->init, - fn->clk, fn->wr, fn->done); -#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK - printf ("Loading FPGA Device %d...\n", cookie); -#endif - - /* - * Run the pre configuration function if there is one. - */ - if (*fn->pre) { - (*fn->pre) (cookie); - } - - /* Establish the initial state */ - (*fn->pgm) (TRUE, TRUE, cookie); /* Assert the program, commit */ - - /* Wait for INIT state (init low) */ - ts = get_timer (0); /* get current time */ - do { - CONFIG_FPGA_DELAY (); - if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT) { /* check the time */ - puts ("** Timeout waiting for INIT to start.\n"); - return FPGA_FAIL; - } - } while (!(*fn->init) (cookie)); - - /* Get ready for the burn */ - CONFIG_FPGA_DELAY (); - (*fn->pgm) (FALSE, TRUE, cookie); /* Deassert the program, commit */ - - ts = get_timer (0); /* get current time */ - /* Now wait for INIT to go high */ - do { - CONFIG_FPGA_DELAY (); - if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT) { /* check the time */ - puts ("** Timeout waiting for INIT to clear.\n"); - return FPGA_FAIL; - } - } while ((*fn->init) (cookie)); - - /* Load the data */ - while (bytecount < bsize) { - - /* Xilinx detects an error if INIT goes low (active) - while DONE is low (inactive) */ - if ((*fn->done) (cookie) == 0 && (*fn->init) (cookie)) { - puts ("** CRC error during FPGA load.\n"); - return (FPGA_FAIL); - } - val = data [bytecount ++]; - i = 8; - do { - /* Deassert the clock */ - (*fn->clk) (FALSE, TRUE, cookie); - CONFIG_FPGA_DELAY (); - /* Write data */ - (*fn->wr) ((val & 0x80), TRUE, cookie); - CONFIG_FPGA_DELAY (); - /* Assert the clock */ - (*fn->clk) (TRUE, TRUE, cookie); - CONFIG_FPGA_DELAY (); - val <<= 1; - i --; - } while (i > 0); - -#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK - if (bytecount % (bsize / 40) == 0) - putc ('.'); /* let them know we are alive */ -#endif - } - - CONFIG_FPGA_DELAY (); - -#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK - putc ('\n'); /* terminate the dotted line */ -#endif - - /* now check for done signal */ - ts = get_timer (0); /* get current time */ - ret_val = FPGA_SUCCESS; - (*fn->wr) (TRUE, TRUE, cookie); - - while (! (*fn->done) (cookie)) { - /* XXX - we should have a check in here somewhere to - * make sure we aren't busy forever... */ - - CONFIG_FPGA_DELAY (); - (*fn->clk) (FALSE, TRUE, cookie); /* Deassert the clock pin */ - CONFIG_FPGA_DELAY (); - (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */ - - putc ('*'); - - if (get_timer (ts) > CONFIG_SYS_FPGA_WAIT) { /* check the time */ - puts ("** Timeout waiting for DONE to clear.\n"); - ret_val = FPGA_FAIL; - break; - } - } - putc ('\n'); /* terminate the dotted line */ - - /* - * Run the post configuration function if there is one. - */ - if (*fn->post) { - (*fn->post) (cookie); - } - -#ifdef CONFIG_SYS_FPGA_PROG_FEEDBACK - if (ret_val == FPGA_SUCCESS) { - puts ("Done.\n"); - } - else { - puts ("Fail.\n"); - } -#endif - - } else { - printf ("%s: NULL Interface function table!\n", __FUNCTION__); - } - - return ret_val; -} - -static int Spartan3_ss_dump (Xilinx_desc * desc, void *buf, size_t bsize) -{ - /* Readback is only available through the Slave Parallel and */ - /* boundary-scan interfaces. */ - printf ("%s: Slave Serial Dumping is unavailable\n", - __FUNCTION__); - return FPGA_FAIL; -} - -static int Spartan3_ss_reloc (Xilinx_desc * desc, ulong reloc_offset) -{ - int ret_val = FPGA_FAIL; /* assume the worst */ - Xilinx_Spartan3_Slave_Serial_fns *fn_r, *fn = - (Xilinx_Spartan3_Slave_Serial_fns *) (desc->iface_fns); - - if (fn) { - ulong addr; - - /* Get the relocated table address */ - addr = (ulong) fn + reloc_offset; - fn_r = (Xilinx_Spartan3_Slave_Serial_fns *) addr; - - if (!fn_r->relocated) { - - if (memcmp (fn_r, fn, - sizeof (Xilinx_Spartan3_Slave_Serial_fns)) - == 0) { - /* good copy of the table, fix the descriptor pointer */ - desc->iface_fns = fn_r; - } else { - PRINTF ("%s: Invalid function table at 0x%p\n", - __FUNCTION__, fn_r); - return FPGA_FAIL; - } - - PRINTF ("%s: Relocating descriptor at 0x%p\n", __FUNCTION__, - desc); - - if (fn->pre) { - addr = (ulong) (fn->pre) + reloc_offset; - fn_r->pre = (Xilinx_pre_fn) addr; - } - - addr = (ulong) (fn->pgm) + reloc_offset; - fn_r->pgm = (Xilinx_pgm_fn) addr; - - addr = (ulong) (fn->init) + reloc_offset; - fn_r->init = (Xilinx_init_fn) addr; - - addr = (ulong) (fn->done) + reloc_offset; - fn_r->done = (Xilinx_done_fn) addr; - - addr = (ulong) (fn->clk) + reloc_offset; - fn_r->clk = (Xilinx_clk_fn) addr; - - addr = (ulong) (fn->wr) + reloc_offset; - fn_r->wr = (Xilinx_wr_fn) addr; - - if (fn->post) { - addr = (ulong) (fn->post) + reloc_offset; - fn_r->post = (Xilinx_post_fn) addr; - } - - fn_r->relocated = TRUE; - - } else { - /* this table has already been moved */ - /* XXX - should check to see if the descriptor is correct */ - desc->iface_fns = fn_r; - } - - ret_val = FPGA_SUCCESS; - } else { - printf ("%s: NULL Interface function table!\n", __FUNCTION__); - } - - return ret_val; - -} |