int fpga_done_fn(int cookie)
{
struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio*)MPC5XXX_GPIO;
int result = 0;
udelay(10);
fpga_debug("CONF_DONE check ... ");
if (gpio->simple_ival & FPGA_CONF_DONE) {
fpga_debug("high\n");
result = 1;
} else
fpga_debug("low\n");
return result;
}
int fpga_status_fn(int cookie)
{
volatile immap_t *im = (volatile immap_t *)CFG_IMMR;
volatile gpio83xx_t *gpio = (volatile gpio83xx_t *)&im->gpio[0];
int result = 0;
fpga_debug("STATUS check ... ");
if (gpio->dat & FPGA_STATUS) {
fpga_debug("high\n");
result = 1;
} else
fpga_debug("low\n");
return result;
}
int fpga_done_fn(int cookie)
{
volatile immap_t *im = (volatile immap_t *)CONFIG_SYS_IMMR;
volatile gpio83xx_t *gpio = (volatile gpio83xx_t *)&im->gpio[0];
int result = 0;
udelay(10);
fpga_debug("CONF_DONE check ... ");
if (gpio->dat & FPGA_CONF_DONE) {
fpga_debug("high\n");
result = 1;
} else
fpga_debug("low\n");
return result;
}
int fpga_status_fn(int cookie)
{
int result = 0;
fpga_debug("STATUS check ... ");
result = gpio_get_value(GPIO_nSTATUS);
if (result < 0)
fpga_debug("error\n");
else if (result > 0)
fpga_debug("high\n");
else
fpga_debug("low\n");
return result;
}
int mvblm7_init_fpga(void)
{
fpga_debug("Initialize FPGA interface\n");
fpga_init();
fpga_add(fpga_altera, &cyclone2);
fpga_config_fn(0, 1, 0);
udelay(60);
return 1;
}
int fpga_config_fn(int assert, int flush, int cookie)
{
fpga_debug("SET config : %s=%d\n", assert ? "low" : "high", assert);
if (flush) {
gpio_set_value(GPIO_nCONFIG, !assert);
udelay(1);
gpio_set_value(GPIO_nCONFIG, assert);
}
return assert;
}
int mvblm7_init_fpga(void)
{
fpga_debug("Initialize FPGA interface (reloc 0x%.8lx)\n",
gd->reloc_off);
fpga_init(gd->reloc_off);
fpga_add(fpga_altera, &cyclone2);
fpga_config_fn(0, 1, 0);
udelay(60);
return 1;
}
int fpga_done_fn(int cookie)
{
int result = 0;
/* since revA of BLX, we will not get this signal. */
udelay(10);
#ifdef CONFIG_SYS_FPGA_DONT_USE_CONF_DONE
fpga_debug("not waiting for CONF_DONE.");
result = 1;
#else
fpga_debug("CONF_DONE check ... ");
if (gpio_get_value(GPIO_CONF_DONE)) {
fpga_debug("high\n");
result = 1;
} else
fpga_debug("low\n");
gpio_free(GPIO_CONF_DONE);
#endif
return result;
}
/* return FPGA_SUCCESS on success, else FPGA_FAIL
*/
int mvblx_init_fpga(void)
{
fpga_debug("Initializing FPGA interface\n");
fpga_init();
fpga_add(fpga_altera, &cyclone2);
if (gpio_request(GPIO_DCLK, "dclk") ||
gpio_request(GPIO_nSTATUS, "nStatus") ||
#ifndef CONFIG_SYS_FPGA_DONT_USE_CONF_DONE
gpio_request(GPIO_CONF_DONE, "conf_done") ||
#endif
gpio_request(GPIO_nCONFIG, "nConfig") ||
gpio_request(GPIO_DATA0, "data0") ||
gpio_request(GPIO_DATA1, "data1") ||
gpio_request(GPIO_DATA2, "data2") ||
gpio_request(GPIO_DATA3, "data3") ||
gpio_request(GPIO_DATA4, "data4") ||
gpio_request(GPIO_DATA5, "data5") ||
gpio_request(GPIO_DATA6, "data6") ||
gpio_request(GPIO_DATA7, "data7")) {
printf("%s: error requesting GPIOs.", __func__);
return FPGA_FAIL;
}
/* set up outputs */
gpio_direction_output(GPIO_DCLK, 0);
gpio_direction_output(GPIO_nCONFIG, 0);
gpio_direction_output(GPIO_DATA0, 0);
gpio_direction_output(GPIO_DATA1, 0);
gpio_direction_output(GPIO_DATA2, 0);
gpio_direction_output(GPIO_DATA3, 0);
gpio_direction_output(GPIO_DATA4, 0);
gpio_direction_output(GPIO_DATA5, 0);
gpio_direction_output(GPIO_DATA6, 0);
gpio_direction_output(GPIO_DATA7, 0);
/* NB omap_free_gpio() resets to an input, so we can't
* free ie. nCONFIG, or else the FPGA would reset
* Q: presumably gpio_free() has the same effect?
*/
/* set up inputs */
gpio_direction_input(GPIO_nSTATUS);
#ifndef CONFIG_SYS_FPGA_DONT_USE_CONF_DONE
gpio_direction_input(GPIO_CONF_DONE);
#endif
fpga_config_fn(0, 1, 0);
udelay(60);
return FPGA_SUCCESS;
}
int fpga_wr_fn(const void *buf, size_t len, int flush, int cookie)
{
unsigned char *data = (unsigned char *) buf;
int i;
int headerlen = len - cyclone2.size;
if (headerlen < 0)
return FPGA_FAIL;
else if (headerlen == sizeof(uint32_t)) {
const unsigned int fpgavers_len = 11; /* '0x' + 8 hex digits + \0 */
char fpgavers_str[fpgavers_len];
snprintf(fpgavers_str, fpgavers_len, "0x%08x",
be32_to_cpup((uint32_t*)data));
setenv("fpgavers", fpgavers_str);
}
fpga_debug("fpga_wr: buf %p / size %d\n", buf, len);
for (i = headerlen; i < len; i++)
_write_fpga(data[i]);
fpga_debug("-%s\n", __func__);
return FPGA_SUCCESS;
}
int fpga_config_fn(int assert, int flush, int cookie)
{
struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio*)MPC5XXX_GPIO;
u32 dvo = gpio->simple_dvo;
fpga_debug("SET config : %s\n", assert ? "low" : "high");
if (assert)
dvo |= FPGA_CONFIG;
else
dvo &= ~FPGA_CONFIG;
if (flush)
gpio->simple_dvo = dvo;
return assert;
}
int fpga_clk_fn(int assert_clk, int flush, int cookie)
{
struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio*)MPC5XXX_GPIO;
u32 dvo = gpio->simple_dvo;
fpga_debug("CLOCK %s\n", assert_clk ? "high" : "low");
if (assert_clk)
dvo |= FPGA_CCLK;
else
dvo &= ~FPGA_CCLK;
if (flush)
gpio->simple_dvo = dvo;
return assert_clk;
}
int fpga_clk_fn(int assert_clk, int flush, int cookie)
{
volatile immap_t *im = (volatile immap_t *)CONFIG_SYS_IMMR;
volatile gpio83xx_t *gpio = (volatile gpio83xx_t *)&im->gpio[0];
u32 dvo = gpio->dat;
fpga_debug("CLOCK %s\n", assert_clk ? "high" : "low");
if (assert_clk)
dvo |= FPGA_CCLK;
else
dvo &= ~FPGA_CCLK;
if (flush)
gpio->dat = dvo;
return assert_clk;
}
int fpga_config_fn(int assert, int flush, int cookie)
{
volatile immap_t *im = (volatile immap_t *)CONFIG_SYS_IMMR;
volatile gpio83xx_t *gpio = (volatile gpio83xx_t *)&im->gpio[0];
u32 dvo = gpio->dat;
fpga_debug("SET config : %s\n", assert ? "low" : "high");
if (assert)
dvo |= FPGA_CONFIG;
else
dvo &= ~FPGA_CONFIG;
if (flush)
gpio->dat = dvo;
return assert;
}
