static int do_sdhci_init(struct sdhci_host *host)
{
int dev_id, flag;
int err = 0;
flag = host->bus_width == 8 ? PINMUX_FLAG_8BIT_MODE : PINMUX_FLAG_NONE;
dev_id = host->index + PERIPH_ID_SDMMC0;
if (fdt_gpio_isvalid(&host->pwr_gpio)) {
gpio_direction_output(host->pwr_gpio.gpio, 1);
err = exynos_pinmux_config(dev_id, flag);
if (err) {
debug("MMC not configured\n");
return err;
}
}
if (fdt_gpio_isvalid(&host->cd_gpio)) {
gpio_direction_output(host->cd_gpio.gpio, 0xf);
if (gpio_get_value(host->cd_gpio.gpio))
return -ENODEV;
err = exynos_pinmux_config(dev_id, flag);
if (err) {
printf("external SD not configured\n");
return err;
}
}
return s5p_sdhci_core_init(host);
}
int fdtdec_set_gpio(struct fdt_gpio_state *gpio, int val)
{
if (!fdt_gpio_isvalid(gpio))
return -1;
val = gpio->flags & FDT_GPIO_ACTIVE_LOW ? val ^ 1 : val;
return gpio_set_value(gpio->gpio, val);
}
int cros_ec_interrupt_pending(struct cros_ec_dev *dev)
{
/* no interrupt support : always poll */
if (!fdt_gpio_isvalid(&dev->ec_int))
return -ENOENT;
return !gpio_get_value(dev->ec_int.gpio);
}
void fdt_setup_gpio(struct fdt_gpio_state *gpio)
{
if (!fdt_gpio_isvalid(gpio))
return;
if (gpio->flags & FDT_GPIO_OUTPUT)
gpio_direction_output(gpio->gpio, gpio->flags & FDT_GPIO_HIGH);
else
gpio_direction_input(gpio->gpio);
}
int fdtdec_setup_gpio(struct fdt_gpio_state *gpio)
{
/*
* Return success if there is no GPIO defined. This is used for
* optional GPIOs)
*/
if (!fdt_gpio_isvalid(gpio))
return 0;
if (gpio_request(gpio->gpio, gpio->name))
return -1;
return 0;
}
void fdt_setup_gpios(struct fdt_gpio_state *gpio_list)
{
struct fdt_gpio_state *gpio;
int i;
for (i = 0, gpio = gpio_list; fdt_gpio_isvalid(gpio); i++, gpio++) {
if (i > FDT_GPIO_MAX) {
/* Something may have gone horribly wrong */
printf("FDT: fdt_setup_gpios: too many GPIOs\n");
return;
}
fdt_setup_gpio(gpio);
}
}
/* Put the port into host mode (this only works for OTG ports) */
static void set_host_mode(struct fdt_usb *config)
{
if (config->dr_mode == DR_MODE_OTG) {
/* Check whether remote host from USB1 is driving VBus */
if (readl(&config->reg->phy_vbus_sensors) & VBUS_VLD_STS)
return;
/*
* If not driving, we set the GPIO to enable VBUS. We assume
* that the pinmux is set up correctly for this.
*/
if (fdt_gpio_isvalid(&config->vbus_gpio)) {
fdtdec_setup_gpio(&config->vbus_gpio);
gpio_direction_output(config->vbus_gpio.gpio, 1);
debug("set_host_mode: GPIO %d high\n",
config->vbus_gpio.gpio);
}
}
}
int board_dp_bridge_setup(const void *blob, unsigned *wait_ms)
{
int ret;
ret = board_dp_fill_gpios(blob);
if (ret)
return ret;
/* Mux HPHPD to the special hotplug detect mode */
exynos_pinmux_config(PERIPH_ID_DPHPD, 0);
/* Setup the GPIOs */
ret = fdtdec_setup_gpio(&local.dp_pd);
if (ret) {
debug("%s: Could not setup pd gpio (%d)\n", __func__, ret);
return ret;
}
ret = fdtdec_setup_gpio(&local.dp_rst);
if (ret) {
debug("%s: Could not setup rst gpio (%d)\n", __func__, ret);
return ret;
}
ret = fdtdec_setup_gpio(&local.dp_hpd);
if (ret) {
debug("%s: Could not setup hpd gpio (%d)\n", __func__, ret);
return ret;
}
fdtdec_set_gpio(&local.dp_pd, 0);
gpio_cfg_pin(local.dp_pd.gpio, EXYNOS_GPIO_OUTPUT);
gpio_set_pull(local.dp_pd.gpio, EXYNOS_GPIO_PULL_NONE);
if (fdt_gpio_isvalid(&local.dp_rst)) {
fdtdec_set_gpio(&local.dp_rst, 1);
gpio_cfg_pin(local.dp_rst.gpio, EXYNOS_GPIO_OUTPUT);
gpio_set_pull(local.dp_rst.gpio, EXYNOS_GPIO_PULL_NONE);
udelay(10);
fdtdec_set_gpio(&local.dp_rst, 0);
}
*wait_ms = 0;
return 0;
}
int xhci_hcd_init(int index, struct xhci_hccr **hccr, struct xhci_hcor **hcor)
{
struct exynos_xhci *ctx = &exynos;
int ret;
#ifdef CONFIG_OF_CONTROL
exynos_usb3_parse_dt(gd->fdt_blob, ctx);
#else
ctx->usb3_phy = (struct exynos_usb3_phy *)samsung_get_base_usb3_phy();
ctx->hcd = (struct xhci_hccr *)samsung_get_base_usb_xhci();
#endif
ctx->dwc3_reg = (struct dwc3 *)((char *)(ctx->hcd) + DWC3_REG_OFFSET);
#ifdef CONFIG_OF_CONTROL
/* setup the Vbus gpio here */
if (fdt_gpio_isvalid(&ctx->vbus_gpio) &&
!fdtdec_setup_gpio(&ctx->vbus_gpio))
gpio_direction_output(ctx->vbus_gpio.gpio, 1);
#endif
ret = exynos_xhci_core_init(ctx);
if (ret) {
puts("XHCI: failed to initialize controller\n");
return -EINVAL;
}
*hccr = (ctx->hcd);
*hcor = (struct xhci_hcor *)((uint32_t) *hccr
+ HC_LENGTH(xhci_readl(&(*hccr)->cr_capbase)));
debug("Exynos5-xhci: init hccr %x and hcor %x hc_length %d\n",
(uint32_t)*hccr, (uint32_t)*hcor,
(uint32_t)HC_LENGTH(xhci_readl(&(*hccr)->cr_capbase)));
return 0;
}
/*
* EHCI-initialization
* Create the appropriate control structures to manage
* a new EHCI host controller.
*/
int ehci_hcd_init(int index, enum usb_init_type init,
struct ehci_hccr **hccr, struct ehci_hcor **hcor)
{
struct exynos_ehci *ctx = &exynos;
#ifdef CONFIG_OF_CONTROL
if (exynos_usb_parse_dt(gd->fdt_blob, ctx)) {
debug("Unable to parse device tree for ehci-exynos\n");
return -ENODEV;
}
#else
ctx->usb = (struct exynos_usb_phy *)samsung_get_base_usb_phy();
ctx->hcd = (struct ehci_hccr *)samsung_get_base_usb_ehci();
#endif
#ifdef CONFIG_OF_CONTROL
/* setup the Vbus gpio here */
if (fdt_gpio_isvalid(&ctx->vbus_gpio) &&
!fdtdec_setup_gpio(&ctx->vbus_gpio))
gpio_direction_output(ctx->vbus_gpio.gpio, 1);
#endif
setup_usb_phy(ctx->usb);
board_usb_init(index, init);
*hccr = ctx->hcd;
*hcor = (struct ehci_hcor *)((uint32_t) *hccr
+ HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
debug("Exynos5-ehci: init hccr %x and hcor %x hc_length %d\n",
(uint32_t)*hccr, (uint32_t)*hcor,
(uint32_t)HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
return 0;
}
/* Put the port into host mode */
static void set_host_mode(struct fdt_usb *config)
{
/*
* If we are an OTG port, check if remote host is driving VBus and
* bail out in this case.
*/
if (config->dr_mode == DR_MODE_OTG &&
(readl(&config->reg->phy_vbus_sensors) & VBUS_VLD_STS))
return;
/*
* If not driving, we set the GPIO to enable VBUS. We assume
* that the pinmux is set up correctly for this.
*/
if (fdt_gpio_isvalid(&config->vbus_gpio)) {
fdtdec_setup_gpio(&config->vbus_gpio);
gpio_direction_output(config->vbus_gpio.gpio,
(config->vbus_gpio.flags & FDT_GPIO_ACTIVE_LOW) ?
0 : 1);
debug("set_host_mode: GPIO %d %s\n", config->vbus_gpio.gpio,
(config->vbus_gpio.flags & FDT_GPIO_ACTIVE_LOW) ?
"low" : "high");
}
}
int fdt_get_gpio_num(struct fdt_gpio_state *gpio)
{
return fdt_gpio_isvalid(gpio) ? gpio->gpio : -1;
}
/* set up the ULPI USB controller with the parameters provided */
static int init_ulpi_usb_controller(struct fdt_usb *config,
struct usb_ctlr *usbctlr)
{
u32 val;
int loop_count;
struct ulpi_viewport ulpi_vp;
/* set up ULPI reference clock on pllp_out4 */
clock_enable(PERIPH_ID_DEV2_OUT);
clock_set_pllout(CLOCK_ID_PERIPH, PLL_OUT4, CONFIG_ULPI_REF_CLK);
/* reset ULPI phy */
if (fdt_gpio_isvalid(&config->phy_reset_gpio)) {
fdtdec_setup_gpio(&config->phy_reset_gpio);
gpio_direction_output(config->phy_reset_gpio.gpio, 0);
mdelay(5);
gpio_set_value(config->phy_reset_gpio.gpio, 1);
}
/* Reset the usb controller */
clock_enable(config->periph_id);
usbf_reset_controller(config, usbctlr);
/* enable pinmux bypass */
setbits_le32(&usbctlr->ulpi_timing_ctrl_0,
ULPI_CLKOUT_PINMUX_BYP | ULPI_OUTPUT_PINMUX_BYP);
/* Select ULPI parallel interface */
clrsetbits_le32(&usbctlr->port_sc1, PTS_MASK, PTS_ULPI << PTS_SHIFT);
/* enable ULPI transceiver */
setbits_le32(&usbctlr->susp_ctrl, ULPI_PHY_ENB);
/* configure ULPI transceiver timings */
val = 0;
writel(val, &usbctlr->ulpi_timing_ctrl_1);
val |= ULPI_DATA_TRIMMER_SEL(4);
val |= ULPI_STPDIRNXT_TRIMMER_SEL(4);
val |= ULPI_DIR_TRIMMER_SEL(4);
writel(val, &usbctlr->ulpi_timing_ctrl_1);
udelay(10);
val |= ULPI_DATA_TRIMMER_LOAD;
val |= ULPI_STPDIRNXT_TRIMMER_LOAD;
val |= ULPI_DIR_TRIMMER_LOAD;
writel(val, &usbctlr->ulpi_timing_ctrl_1);
/* set up phy for host operation with external vbus supply */
ulpi_vp.port_num = 0;
ulpi_vp.viewport_addr = (u32)&usbctlr->ulpi_viewport;
if (ulpi_init(&ulpi_vp)) {
printf("Tegra ULPI viewport init failed\n");
return -1;
}
ulpi_set_vbus(&ulpi_vp, 1, 1);
ulpi_set_vbus_indicator(&ulpi_vp, 1, 1, 0);
/* enable wakeup events */
setbits_le32(&usbctlr->port_sc1, WKCN | WKDS | WKOC);
/* Enable and wait for the phy clock to become valid in 100 ms */
setbits_le32(&usbctlr->susp_ctrl, USB_SUSP_CLR);
for (loop_count = 100000; loop_count != 0; loop_count--) {
if (readl(&usbctlr->susp_ctrl) & USB_PHY_CLK_VALID)
break;
udelay(1);
}
if (!loop_count)
return -1;
clrbits_le32(&usbctlr->susp_ctrl, USB_SUSP_CLR);
return 0;
}
/* set up the UTMI USB controller with the parameters provided */
static int init_utmi_usb_controller(struct fdt_usb *config,
struct usb_ctlr *usbctlr, const u32 timing[])
{
u32 val;
int loop_count;
clock_enable(config->periph_id);
/* Reset the usb controller */
usbf_reset_controller(config, usbctlr);
/* Stop crystal clock by setting UTMIP_PHY_XTAL_CLOCKEN low */
clrbits_le32(&usbctlr->utmip_misc_cfg1, UTMIP_PHY_XTAL_CLOCKEN);
/* Follow the crystal clock disable by >100ns delay */
udelay(1);
/*
* To Use the A Session Valid for cable detection logic, VBUS_WAKEUP
* mux must be switched to actually use a_sess_vld threshold.
*/
if (fdt_gpio_isvalid(&config->vbus_gpio)) {
clrsetbits_le32(&usbctlr->usb1_legacy_ctrl,
VBUS_SENSE_CTL_MASK,
VBUS_SENSE_CTL_A_SESS_VLD << VBUS_SENSE_CTL_SHIFT);
}
/*
* PLL Delay CONFIGURATION settings. The following parameters control
* the bring up of the plls.
*/
val = readl(&usbctlr->utmip_misc_cfg1);
clrsetbits_le32(&val, UTMIP_PLLU_STABLE_COUNT_MASK,
timing[PARAM_STABLE_COUNT] << UTMIP_PLLU_STABLE_COUNT_SHIFT);
clrsetbits_le32(&val, UTMIP_PLL_ACTIVE_DLY_COUNT_MASK,
timing[PARAM_ACTIVE_DELAY_COUNT] <<
UTMIP_PLL_ACTIVE_DLY_COUNT_SHIFT);
writel(val, &usbctlr->utmip_misc_cfg1);
/* Set PLL enable delay count and crystal frequency count */
val = readl(&usbctlr->utmip_pll_cfg1);
clrsetbits_le32(&val, UTMIP_PLLU_ENABLE_DLY_COUNT_MASK,
timing[PARAM_ENABLE_DELAY_COUNT] <<
UTMIP_PLLU_ENABLE_DLY_COUNT_SHIFT);
clrsetbits_le32(&val, UTMIP_XTAL_FREQ_COUNT_MASK,
timing[PARAM_XTAL_FREQ_COUNT] <<
UTMIP_XTAL_FREQ_COUNT_SHIFT);
writel(val, &usbctlr->utmip_pll_cfg1);
/* Setting the tracking length time */
clrsetbits_le32(&usbctlr->utmip_bias_cfg1,
UTMIP_BIAS_PDTRK_COUNT_MASK,
timing[PARAM_BIAS_TIME] << UTMIP_BIAS_PDTRK_COUNT_SHIFT);
/* Program debounce time for VBUS to become valid */
clrsetbits_le32(&usbctlr->utmip_debounce_cfg0,
UTMIP_DEBOUNCE_CFG0_MASK,
timing[PARAM_DEBOUNCE_A_TIME] << UTMIP_DEBOUNCE_CFG0_SHIFT);
setbits_le32(&usbctlr->utmip_tx_cfg0, UTMIP_FS_PREAMBLE_J);
/* Disable battery charge enabling bit */
setbits_le32(&usbctlr->utmip_bat_chrg_cfg0, UTMIP_PD_CHRG);
clrbits_le32(&usbctlr->utmip_xcvr_cfg0, UTMIP_XCVR_LSBIAS_SE);
setbits_le32(&usbctlr->utmip_spare_cfg0, FUSE_SETUP_SEL);
/*
* Configure the UTMIP_IDLE_WAIT and UTMIP_ELASTIC_LIMIT
* Setting these fields, together with default values of the
* other fields, results in programming the registers below as
* follows:
* UTMIP_HSRX_CFG0 = 0x9168c000
* UTMIP_HSRX_CFG1 = 0x13
*/
/* Set PLL enable delay count and Crystal frequency count */
val = readl(&usbctlr->utmip_hsrx_cfg0);
clrsetbits_le32(&val, UTMIP_IDLE_WAIT_MASK,
utmip_idle_wait_delay << UTMIP_IDLE_WAIT_SHIFT);
clrsetbits_le32(&val, UTMIP_ELASTIC_LIMIT_MASK,
utmip_elastic_limit << UTMIP_ELASTIC_LIMIT_SHIFT);
writel(val, &usbctlr->utmip_hsrx_cfg0);
/* Configure the UTMIP_HS_SYNC_START_DLY */
clrsetbits_le32(&usbctlr->utmip_hsrx_cfg1,
UTMIP_HS_SYNC_START_DLY_MASK,
utmip_hs_sync_start_delay << UTMIP_HS_SYNC_START_DLY_SHIFT);
/* Preceed the crystal clock disable by >100ns delay. */
udelay(1);
/* Resuscitate crystal clock by setting UTMIP_PHY_XTAL_CLOCKEN */
setbits_le32(&usbctlr->utmip_misc_cfg1, UTMIP_PHY_XTAL_CLOCKEN);
/* Finished the per-controller init. */
/* De-assert UTMIP_RESET to bring out of reset. */
clrbits_le32(&usbctlr->susp_ctrl, UTMIP_RESET);
/* Wait for the phy clock to become valid in 100 ms */
for (loop_count = 100000; loop_count != 0; loop_count--) {
if (readl(&usbctlr->susp_ctrl) & USB_PHY_CLK_VALID)
break;
udelay(1);
}
if (!loop_count)
return -1;
/* Disable ICUSB FS/LS transceiver */
clrbits_le32(&usbctlr->icusb_ctrl, IC_ENB1);
/* Select UTMI parallel interface */
clrsetbits_le32(&usbctlr->port_sc1, PTS_MASK,
PTS_UTMI << PTS_SHIFT);
clrbits_le32(&usbctlr->port_sc1, STS);
/* Deassert power down state */
clrbits_le32(&usbctlr->utmip_xcvr_cfg0, UTMIP_FORCE_PD_POWERDOWN |
UTMIP_FORCE_PD2_POWERDOWN | UTMIP_FORCE_PDZI_POWERDOWN);
clrbits_le32(&usbctlr->utmip_xcvr_cfg1, UTMIP_FORCE_PDDISC_POWERDOWN |
UTMIP_FORCE_PDCHRP_POWERDOWN | UTMIP_FORCE_PDDR_POWERDOWN);
return 0;
}
/**
* Handle the next stage of device init
*/
static int handle_stage(const void *blob)
{
debug("%s: stage %d\n", __func__, stage);
/* do the things for this stage */
switch (stage) {
case STAGE_START:
/* Initialize the Tegra display controller */
if (tegra_display_probe(gd->fdt_blob, (void *)gd->fb_base)) {
printf("%s: Failed to probe display driver\n",
__func__);
return -1;
}
/* get panel details */
if (fdt_decode_lcd(blob, &config)) {
printf("No valid LCD information in device tree\n");
return -1;
}
/*
* It is possible that the FDT has requested that the LCD be
* disabled. We currently don't support this. It would require
* changes to U-Boot LCD subsystem to have LCD support
* compiled in but not used. An easier option might be to
* still have a frame buffer, but leave the backlight off and
* remove all mention of lcd in the stdout environment
* variable.
*/
funcmux_select(PERIPH_ID_DISP1, FUNCMUX_DEFAULT);
fdtdec_setup_gpio(&config.panel_vdd);
fdtdec_setup_gpio(&config.lvds_shutdown);
fdtdec_setup_gpio(&config.backlight_vdd);
fdtdec_setup_gpio(&config.backlight_en);
/*
* TODO: If fdt includes output flag we can omit this code
* since fdtdec_setup_gpio will do it for us.
*/
if (fdt_gpio_isvalid(&config.panel_vdd))
gpio_direction_output(config.panel_vdd.gpio, 0);
if (fdt_gpio_isvalid(&config.lvds_shutdown))
gpio_direction_output(config.lvds_shutdown.gpio, 0);
if (fdt_gpio_isvalid(&config.backlight_vdd))
gpio_direction_output(config.backlight_vdd.gpio, 0);
if (fdt_gpio_isvalid(&config.backlight_en))
gpio_direction_output(config.backlight_en.gpio, 0);
break;
case STAGE_PANEL_VDD:
if (fdt_gpio_isvalid(&config.panel_vdd))
gpio_direction_output(config.panel_vdd.gpio, 1);
break;
case STAGE_LVDS:
if (fdt_gpio_isvalid(&config.lvds_shutdown))
gpio_set_value(config.lvds_shutdown.gpio, 1);
break;
case STAGE_BACKLIGHT_VDD:
if (fdt_gpio_isvalid(&config.backlight_vdd))
gpio_set_value(config.backlight_vdd.gpio, 1);
break;
case STAGE_PWM:
/* Enable PWM at 15/16 high, 32768 Hz with divider 1 */
pinmux_set_func(PINGRP_GPU, PMUX_FUNC_PWM);
pinmux_tristate_disable(PINGRP_GPU);
pwm_enable(config.pwm_channel, 32768, 0xdf, 1);
break;
case STAGE_BACKLIGHT_EN:
if (fdt_gpio_isvalid(&config.backlight_en))
gpio_set_value(config.backlight_en.gpio, 1);
break;
case STAGE_DONE:
break;
}
/* set up timer for next stage */
timer_next = timer_get_us();
if (stage < FDT_LCD_TIMINGS)
timer_next += config.panel_timings[stage] * 1000;
/* move to next stage */
stage++;
return 0;
}
int cros_ec_init(const void *blob, struct cros_ec_dev **cros_ecp)
{
char id[MSG_BYTES];
struct cros_ec_dev *dev;
int node = 0;
*cros_ecp = NULL;
do {
node = fdtdec_next_compatible(blob, node,
COMPAT_GOOGLE_CROS_EC);
if (node < 0) {
debug("%s: Node not found\n", __func__);
return 0;
}
} while (!fdtdec_get_is_enabled(blob, node));
if (cros_ec_decode_fdt(blob, node, &dev)) {
debug("%s: Failed to decode device.\n", __func__);
return -CROS_EC_ERR_FDT_DECODE;
}
switch (dev->interface) {
#ifdef CONFIG_CROS_EC_SPI
case CROS_EC_IF_SPI:
if (cros_ec_spi_init(dev, blob)) {
debug("%s: Could not setup SPI interface\n", __func__);
return -CROS_EC_ERR_DEV_INIT;
}
break;
#endif
#ifdef CONFIG_CROS_EC_I2C
case CROS_EC_IF_I2C:
if (cros_ec_i2c_init(dev, blob))
return -CROS_EC_ERR_DEV_INIT;
break;
#endif
#ifdef CONFIG_CROS_EC_LPC
case CROS_EC_IF_LPC:
if (cros_ec_lpc_init(dev, blob))
return -CROS_EC_ERR_DEV_INIT;
break;
#endif
#ifdef CONFIG_CROS_EC_SANDBOX
case CROS_EC_IF_SANDBOX:
if (cros_ec_sandbox_init(dev, blob))
return -CROS_EC_ERR_DEV_INIT;
break;
#endif
case CROS_EC_IF_NONE:
default:
return 0;
}
/* we will poll the EC interrupt line */
fdtdec_setup_gpio(&dev->ec_int);
if (fdt_gpio_isvalid(&dev->ec_int))
gpio_direction_input(dev->ec_int.gpio);
if (cros_ec_check_version(dev)) {
debug("%s: Could not detect CROS-EC version\n", __func__);
return -CROS_EC_ERR_CHECK_VERSION;
}
if (cros_ec_read_id(dev, id, sizeof(id))) {
debug("%s: Could not read KBC ID\n", __func__);
return -CROS_EC_ERR_READ_ID;
}
/* Remember this device for use by the cros_ec command */
last_dev = *cros_ecp = dev;
debug("Google Chrome EC CROS-EC driver ready, id '%s'\n", id);
return 0;
}
/* set up the UTMI USB controller with the parameters provided */
static int init_utmi_usb_controller(struct fdt_usb *config)
{
u32 val;
int loop_count;
const unsigned *timing;
struct usb_ctlr *usbctlr = config->reg;
struct clk_rst_ctlr *clkrst;
struct usb_ctlr *usb1ctlr;
clock_enable(config->periph_id);
/* Reset the usb controller */
usbf_reset_controller(config, usbctlr);
/* Stop crystal clock by setting UTMIP_PHY_XTAL_CLOCKEN low */
clrbits_le32(&usbctlr->utmip_misc_cfg1, UTMIP_PHY_XTAL_CLOCKEN);
/* Follow the crystal clock disable by >100ns delay */
udelay(1);
/*
* To Use the A Session Valid for cable detection logic, VBUS_WAKEUP
* mux must be switched to actually use a_sess_vld threshold.
*/
if (config->dr_mode == DR_MODE_OTG &&
fdt_gpio_isvalid(&config->vbus_gpio))
clrsetbits_le32(&usbctlr->usb1_legacy_ctrl,
VBUS_SENSE_CTL_MASK,
VBUS_SENSE_CTL_A_SESS_VLD << VBUS_SENSE_CTL_SHIFT);
/*
* PLL Delay CONFIGURATION settings. The following parameters control
* the bring up of the plls.
*/
timing = get_pll_timing();
if (!controller->has_hostpc) {
val = readl(&usbctlr->utmip_misc_cfg1);
clrsetbits_le32(&val, UTMIP_PLLU_STABLE_COUNT_MASK,
timing[PARAM_STABLE_COUNT] <<
UTMIP_PLLU_STABLE_COUNT_SHIFT);
clrsetbits_le32(&val, UTMIP_PLL_ACTIVE_DLY_COUNT_MASK,
timing[PARAM_ACTIVE_DELAY_COUNT] <<
UTMIP_PLL_ACTIVE_DLY_COUNT_SHIFT);
writel(val, &usbctlr->utmip_misc_cfg1);
/* Set PLL enable delay count and crystal frequency count */
val = readl(&usbctlr->utmip_pll_cfg1);
clrsetbits_le32(&val, UTMIP_PLLU_ENABLE_DLY_COUNT_MASK,
timing[PARAM_ENABLE_DELAY_COUNT] <<
UTMIP_PLLU_ENABLE_DLY_COUNT_SHIFT);
clrsetbits_le32(&val, UTMIP_XTAL_FREQ_COUNT_MASK,
timing[PARAM_XTAL_FREQ_COUNT] <<
UTMIP_XTAL_FREQ_COUNT_SHIFT);
writel(val, &usbctlr->utmip_pll_cfg1);
} else {
clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
val = readl(&clkrst->crc_utmip_pll_cfg2);
clrsetbits_le32(&val, UTMIP_PLLU_STABLE_COUNT_MASK,
timing[PARAM_STABLE_COUNT] <<
UTMIP_PLLU_STABLE_COUNT_SHIFT);
clrsetbits_le32(&val, UTMIP_PLL_ACTIVE_DLY_COUNT_MASK,
timing[PARAM_ACTIVE_DELAY_COUNT] <<
UTMIP_PLL_ACTIVE_DLY_COUNT_SHIFT);
writel(val, &clkrst->crc_utmip_pll_cfg2);
/* Set PLL enable delay count and crystal frequency count */
val = readl(&clkrst->crc_utmip_pll_cfg1);
clrsetbits_le32(&val, UTMIP_PLLU_ENABLE_DLY_COUNT_MASK,
timing[PARAM_ENABLE_DELAY_COUNT] <<
UTMIP_PLLU_ENABLE_DLY_COUNT_SHIFT);
clrsetbits_le32(&val, UTMIP_XTAL_FREQ_COUNT_MASK,
timing[PARAM_XTAL_FREQ_COUNT] <<
UTMIP_XTAL_FREQ_COUNT_SHIFT);
writel(val, &clkrst->crc_utmip_pll_cfg1);
/* Disable Power Down state for PLL */
clrbits_le32(&clkrst->crc_utmip_pll_cfg1,
PLLU_POWERDOWN | PLL_ENABLE_POWERDOWN |
PLL_ACTIVE_POWERDOWN);
/* Recommended PHY settings for EYE diagram */
val = readl(&usbctlr->utmip_xcvr_cfg0);
clrsetbits_le32(&val, UTMIP_XCVR_SETUP_MASK,
0x4 << UTMIP_XCVR_SETUP_SHIFT);
clrsetbits_le32(&val, UTMIP_XCVR_SETUP_MSB_MASK,
0x3 << UTMIP_XCVR_SETUP_MSB_SHIFT);
clrsetbits_le32(&val, UTMIP_XCVR_HSSLEW_MSB_MASK,
0x8 << UTMIP_XCVR_HSSLEW_MSB_SHIFT);
writel(val, &usbctlr->utmip_xcvr_cfg0);
clrsetbits_le32(&usbctlr->utmip_xcvr_cfg1,
UTMIP_XCVR_TERM_RANGE_ADJ_MASK,
0x7 << UTMIP_XCVR_TERM_RANGE_ADJ_SHIFT);
/* Some registers can be controlled from USB1 only. */
if (config->periph_id != PERIPH_ID_USBD) {
clock_enable(PERIPH_ID_USBD);
/* Disable Reset if in Reset state */
reset_set_enable(PERIPH_ID_USBD, 0);
}
usb1ctlr = (struct usb_ctlr *)
((u32)config->reg & USB1_ADDR_MASK);
val = readl(&usb1ctlr->utmip_bias_cfg0);
setbits_le32(&val, UTMIP_HSDISCON_LEVEL_MSB);
clrsetbits_le32(&val, UTMIP_HSDISCON_LEVEL_MASK,
0x1 << UTMIP_HSDISCON_LEVEL_SHIFT);
clrsetbits_le32(&val, UTMIP_HSSQUELCH_LEVEL_MASK,
0x2 << UTMIP_HSSQUELCH_LEVEL_SHIFT);
writel(val, &usb1ctlr->utmip_bias_cfg0);
/* Miscellaneous setting mentioned in Programming Guide */
clrbits_le32(&usbctlr->utmip_misc_cfg0,
UTMIP_SUSPEND_EXIT_ON_EDGE);
}
/* Setting the tracking length time */
clrsetbits_le32(&usbctlr->utmip_bias_cfg1,
UTMIP_BIAS_PDTRK_COUNT_MASK,
timing[PARAM_BIAS_TIME] << UTMIP_BIAS_PDTRK_COUNT_SHIFT);
/* Program debounce time for VBUS to become valid */
clrsetbits_le32(&usbctlr->utmip_debounce_cfg0,
UTMIP_DEBOUNCE_CFG0_MASK,
timing[PARAM_DEBOUNCE_A_TIME] << UTMIP_DEBOUNCE_CFG0_SHIFT);
setbits_le32(&usbctlr->utmip_tx_cfg0, UTMIP_FS_PREAMBLE_J);
/* Disable battery charge enabling bit */
setbits_le32(&usbctlr->utmip_bat_chrg_cfg0, UTMIP_PD_CHRG);
clrbits_le32(&usbctlr->utmip_xcvr_cfg0, UTMIP_XCVR_LSBIAS_SE);
setbits_le32(&usbctlr->utmip_spare_cfg0, FUSE_SETUP_SEL);
/*
* Configure the UTMIP_IDLE_WAIT and UTMIP_ELASTIC_LIMIT
* Setting these fields, together with default values of the
* other fields, results in programming the registers below as
* follows:
* UTMIP_HSRX_CFG0 = 0x9168c000
* UTMIP_HSRX_CFG1 = 0x13
*/
/* Set PLL enable delay count and Crystal frequency count */
val = readl(&usbctlr->utmip_hsrx_cfg0);
clrsetbits_le32(&val, UTMIP_IDLE_WAIT_MASK,
utmip_idle_wait_delay << UTMIP_IDLE_WAIT_SHIFT);
clrsetbits_le32(&val, UTMIP_ELASTIC_LIMIT_MASK,
utmip_elastic_limit << UTMIP_ELASTIC_LIMIT_SHIFT);
writel(val, &usbctlr->utmip_hsrx_cfg0);
/* Configure the UTMIP_HS_SYNC_START_DLY */
clrsetbits_le32(&usbctlr->utmip_hsrx_cfg1,
UTMIP_HS_SYNC_START_DLY_MASK,
utmip_hs_sync_start_delay << UTMIP_HS_SYNC_START_DLY_SHIFT);
/* Preceed the crystal clock disable by >100ns delay. */
udelay(1);
/* Resuscitate crystal clock by setting UTMIP_PHY_XTAL_CLOCKEN */
setbits_le32(&usbctlr->utmip_misc_cfg1, UTMIP_PHY_XTAL_CLOCKEN);
if (controller->has_hostpc) {
if (config->periph_id == PERIPH_ID_USBD)
clrbits_le32(&clkrst->crc_utmip_pll_cfg2,
UTMIP_FORCE_PD_SAMP_A_POWERDOWN);
if (config->periph_id == PERIPH_ID_USB3)
clrbits_le32(&clkrst->crc_utmip_pll_cfg2,
UTMIP_FORCE_PD_SAMP_C_POWERDOWN);
}
/* Finished the per-controller init. */
/* De-assert UTMIP_RESET to bring out of reset. */
clrbits_le32(&usbctlr->susp_ctrl, UTMIP_RESET);
/* Wait for the phy clock to become valid in 100 ms */
for (loop_count = 100000; loop_count != 0; loop_count--) {
if (readl(&usbctlr->susp_ctrl) & USB_PHY_CLK_VALID)
break;
udelay(1);
}
if (!loop_count)
return -1;
/* Disable ICUSB FS/LS transceiver */
clrbits_le32(&usbctlr->icusb_ctrl, IC_ENB1);
/* Select UTMI parallel interface */
clrsetbits_le32(&usbctlr->port_sc1, PTS_MASK,
PTS_UTMI << PTS_SHIFT);
clrbits_le32(&usbctlr->port_sc1, STS);
/* Deassert power down state */
clrbits_le32(&usbctlr->utmip_xcvr_cfg0, UTMIP_FORCE_PD_POWERDOWN |
UTMIP_FORCE_PD2_POWERDOWN | UTMIP_FORCE_PDZI_POWERDOWN);
clrbits_le32(&usbctlr->utmip_xcvr_cfg1, UTMIP_FORCE_PDDISC_POWERDOWN |
UTMIP_FORCE_PDCHRP_POWERDOWN | UTMIP_FORCE_PDDR_POWERDOWN);
if (controller->has_hostpc) {
/*
* BIAS Pad Power Down is common among all 3 USB
* controllers and can be controlled from USB1 only.
*/
usb1ctlr = (struct usb_ctlr *)
((u32)config->reg & USB1_ADDR_MASK);
clrbits_le32(&usb1ctlr->utmip_bias_cfg0, UTMIP_BIASPD);
udelay(25);
clrbits_le32(&usb1ctlr->utmip_bias_cfg1,
UTMIP_FORCE_PDTRK_POWERDOWN);
}
return 0;
}
