mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-17 23:48:52 +09:00
![Vagrant Cascadian](/assets/img/avatar_default.png)
Signed-off-by: Vagrant Cascadian <vagrant@debian.org> Acked-by: Marek Vasut <marex@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
191 lines
4.8 KiB
C
191 lines
4.8 KiB
C
/*
|
|
* (C) Copyright 2007
|
|
* Eran Liberty, Extricom , eran.liberty@gmail.com
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h> /* core U-Boot definitions */
|
|
#include <altera.h>
|
|
|
|
int StratixII_ps_fpp_load (Altera_desc * desc, void *buf, size_t bsize,
|
|
int isSerial, int isSecure);
|
|
int StratixII_ps_fpp_dump (Altera_desc * desc, void *buf, size_t bsize);
|
|
|
|
/****************************************************************/
|
|
/* Stratix II Generic Implementation */
|
|
int StratixII_load (Altera_desc * desc, void *buf, size_t bsize)
|
|
{
|
|
int ret_val = FPGA_FAIL;
|
|
|
|
switch (desc->iface) {
|
|
case passive_serial:
|
|
ret_val = StratixII_ps_fpp_load (desc, buf, bsize, 1, 0);
|
|
break;
|
|
case fast_passive_parallel:
|
|
ret_val = StratixII_ps_fpp_load (desc, buf, bsize, 0, 0);
|
|
break;
|
|
case fast_passive_parallel_security:
|
|
ret_val = StratixII_ps_fpp_load (desc, buf, bsize, 0, 1);
|
|
break;
|
|
|
|
/* Add new interface types here */
|
|
default:
|
|
printf ("%s: Unsupported interface type, %d\n", __FUNCTION__,
|
|
desc->iface);
|
|
}
|
|
return ret_val;
|
|
}
|
|
|
|
int StratixII_dump (Altera_desc * desc, void *buf, size_t bsize)
|
|
{
|
|
int ret_val = FPGA_FAIL;
|
|
|
|
switch (desc->iface) {
|
|
case passive_serial:
|
|
case fast_passive_parallel:
|
|
case fast_passive_parallel_security:
|
|
ret_val = StratixII_ps_fpp_dump (desc, buf, bsize);
|
|
break;
|
|
/* Add new interface types here */
|
|
default:
|
|
printf ("%s: Unsupported interface type, %d\n", __FUNCTION__,
|
|
desc->iface);
|
|
}
|
|
return ret_val;
|
|
}
|
|
|
|
int StratixII_info (Altera_desc * desc)
|
|
{
|
|
return FPGA_SUCCESS;
|
|
}
|
|
|
|
int StratixII_ps_fpp_dump (Altera_desc * desc, void *buf, size_t bsize)
|
|
{
|
|
printf ("Stratix II Fast Passive Parallel dump is not implemented\n");
|
|
return FPGA_FAIL;
|
|
}
|
|
|
|
int StratixII_ps_fpp_load (Altera_desc * desc, void *buf, size_t bsize,
|
|
int isSerial, int isSecure)
|
|
{
|
|
altera_board_specific_func *fns;
|
|
int cookie;
|
|
int ret_val = FPGA_FAIL;
|
|
int bytecount;
|
|
char *buff = buf;
|
|
int i;
|
|
|
|
if (!desc) {
|
|
printf ("%s(%d) Altera_desc missing\n", __FUNCTION__, __LINE__);
|
|
return FPGA_FAIL;
|
|
}
|
|
if (!buff) {
|
|
printf ("%s(%d) buffer is missing\n", __FUNCTION__, __LINE__);
|
|
return FPGA_FAIL;
|
|
}
|
|
if (!bsize) {
|
|
printf ("%s(%d) size is zero\n", __FUNCTION__, __LINE__);
|
|
return FPGA_FAIL;
|
|
}
|
|
if (!desc->iface_fns) {
|
|
printf
|
|
("%s(%d) Altera_desc function interface table is missing\n",
|
|
__FUNCTION__, __LINE__);
|
|
return FPGA_FAIL;
|
|
}
|
|
fns = (altera_board_specific_func *) (desc->iface_fns);
|
|
cookie = desc->cookie;
|
|
|
|
if (!
|
|
(fns->config && fns->status && fns->done && fns->data
|
|
&& fns->abort)) {
|
|
printf
|
|
("%s(%d) Missing some function in the function interface table\n",
|
|
__FUNCTION__, __LINE__);
|
|
return FPGA_FAIL;
|
|
}
|
|
|
|
/* 1. give board specific a chance to do anything before we start */
|
|
if (fns->pre) {
|
|
if ((ret_val = fns->pre (cookie)) < 0) {
|
|
return ret_val;
|
|
}
|
|
}
|
|
|
|
/* from this point on we must fail gracfully by calling lower layer abort */
|
|
|
|
/* 2. Strat burn cycle by deasserting config for t_CFG and waiting t_CF2CK after reaserted */
|
|
fns->config (0, 1, cookie);
|
|
udelay (5); /* nCONFIG low pulse width 2usec */
|
|
fns->config (1, 1, cookie);
|
|
udelay (100); /* nCONFIG high to first rising edge on DCLK */
|
|
|
|
/* 3. Start the Data cycle with clk deasserted */
|
|
bytecount = 0;
|
|
fns->clk (0, 1, cookie);
|
|
|
|
printf ("loading to fpga ");
|
|
while (bytecount < bsize) {
|
|
/* 3.1 check stratix has not signaled us an error */
|
|
if (fns->status (cookie) != 1) {
|
|
printf
|
|
("\n%s(%d) Stratix failed (byte transferred till failure 0x%x)\n",
|
|
__FUNCTION__, __LINE__, bytecount);
|
|
fns->abort (cookie);
|
|
return FPGA_FAIL;
|
|
}
|
|
if (isSerial) {
|
|
int i;
|
|
uint8_t data = buff[bytecount++];
|
|
for (i = 0; i < 8; i++) {
|
|
/* 3.2(ps) put data on the bus */
|
|
fns->data ((data >> i) & 1, 1, cookie);
|
|
|
|
/* 3.3(ps) clock once */
|
|
fns->clk (1, 1, cookie);
|
|
fns->clk (0, 1, cookie);
|
|
}
|
|
} else {
|
|
/* 3.2(fpp) put data on the bus */
|
|
fns->data (buff[bytecount++], 1, cookie);
|
|
|
|
/* 3.3(fpp) clock once */
|
|
fns->clk (1, 1, cookie);
|
|
fns->clk (0, 1, cookie);
|
|
|
|
/* 3.4(fpp) for secure cycle push 3 more clocks */
|
|
for (i = 0; isSecure && i < 3; i++) {
|
|
fns->clk (1, 1, cookie);
|
|
fns->clk (0, 1, cookie);
|
|
}
|
|
}
|
|
|
|
/* 3.5 while clk is deasserted it is safe to print some progress indication */
|
|
if ((bytecount % (bsize / 100)) == 0) {
|
|
printf ("\b\b\b%02d\%", bytecount * 100 / bsize);
|
|
}
|
|
}
|
|
|
|
/* 4. Set one last clock and check conf done signal */
|
|
fns->clk (1, 1, cookie);
|
|
udelay (100);
|
|
if (!fns->done (cookie)) {
|
|
printf (" error!.\n");
|
|
fns->abort (cookie);
|
|
return FPGA_FAIL;
|
|
} else {
|
|
printf ("\b\b\b done.\n");
|
|
}
|
|
|
|
/* 5. call lower layer post configuration */
|
|
if (fns->post) {
|
|
if ((ret_val = fns->post (cookie)) < 0) {
|
|
fns->abort (cookie);
|
|
return ret_val;
|
|
}
|
|
}
|
|
|
|
return FPGA_SUCCESS;
|
|
}
|