static void ehrpwm_tblck_disable(struct clk *clk)
{
u32 val;
val = readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP1_REG));
val &= ~DA8XX_EHRPWM_TBCLKSYNC;
writel(val, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP1_REG));
}
static __init void omapl138_hawk_usb_init(void)
{
int ret;
u32 cfgchip2;
ret = davinci_cfg_reg_list(da850_hawk_usb11_pins);
if (ret) {
pr_warning("%s: USB 1.1 PinMux setup failed: %d\n",
__func__, ret);
return;
}
/* Setup the Ref. clock frequency for the HAWK at 24 MHz. */
cfgchip2 = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
cfgchip2 &= ~CFGCHIP2_REFFREQ;
cfgchip2 |= CFGCHIP2_REFFREQ_24MHZ;
__raw_writel(cfgchip2, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
ret = gpio_request_one(DA850_USB1_VBUS_PIN,
GPIOF_DIR_OUT, "USB1 VBUS");
if (ret < 0) {
pr_err("%s: failed to request GPIO for USB 1.1 port "
"power control: %d\n", __func__, ret);
return;
}
ret = gpio_request_one(DA850_USB1_OC_PIN,
GPIOF_DIR_IN, "USB1 OC");
if (ret < 0) {
pr_err("%s: failed to request GPIO for USB 1.1 port "
"over-current indicator: %d\n", __func__, ret);
goto usb11_setup_oc_fail;
}
ret = da8xx_register_usb11(&omapl138_hawk_usb11_pdata);
if (ret) {
pr_warning("%s: USB 1.1 registration failed: %d\n",
__func__, ret);
goto usb11_setup_fail;
}
return;
usb11_setup_fail:
gpio_free(DA850_USB1_OC_PIN);
usb11_setup_oc_fail:
gpio_free(DA850_USB1_VBUS_PIN);
}
static __init void omapl138_hawk_usb_init(void)
{
u32 cfgchip2;
/* Setup the Ref. clock frequency for the HAWK at 24 MHz. */
cfgchip2 = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
cfgchip2 &= ~CFGCHIP2_REFFREQ;
cfgchip2 |= CFGCHIP2_REFFREQ_24MHZ;
__raw_writel(cfgchip2, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
da8xx_board_usb_init(da850_hawk_usb11_pins, &omapl138_hawk_usb11_pdata);
return;
}
static int da850_lcd_hw_init(void)
{
void __iomem *cfg_mstpri2_base;
int status;
u32 val;
/*
* Reconfigure the LCDC priority to the highest to ensure that
* the throughput/latency requirements for the LCDC are met.
*/
cfg_mstpri2_base = DA8XX_SYSCFG0_VIRT(DA8XX_MSTPRI2_REG);
val = __raw_readl(cfg_mstpri2_base);
val &= 0x0fffffff;
__raw_writel(val, cfg_mstpri2_base);
status = gpio_request(DA850_LCD_BL_PIN, "lcd bl\n");
if (status < 0)
return status;
status = gpio_request(DA850_LCD_PWR_PIN, "lcd pwr\n");
if (status < 0) {
gpio_free(DA850_LCD_BL_PIN);
return status;
}
gpio_direction_output(DA850_LCD_BL_PIN, 0);
gpio_direction_output(DA850_LCD_PWR_PIN, 0);
return 0;
}
static __init void omapl138_hawk_config_emac(void)
{
void __iomem *cfgchip3 = DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG);
int ret;
u32 val;
struct davinci_soc_info *soc_info = &davinci_soc_info;
val = __raw_readl(cfgchip3);
val &= ~BIT(8);
ret = davinci_cfg_reg_list(omapl138_hawk_mii_pins);
if (ret) {
pr_warning("%s: cpgmac/mii mux setup failed: %d\n",
__func__, ret);
return;
}
/* configure the CFGCHIP3 register for MII */
__raw_writel(val, cfgchip3);
pr_info("EMAC: MII PHY configured\n");
soc_info->emac_pdata->phy_id = HAWKBOARD_PHY_ID;
ret = da8xx_register_emac();
if (ret)
pr_warning("%s: emac registration failed: %d\n",
__func__, ret);
}
static int __init da850_evm_config_emac(void)
{
void __iomem *cfg_chip3_base;
int ret;
u32 val;
struct davinci_soc_info *soc_info = &davinci_soc_info;
u8 rmii_en = soc_info->emac_pdata->rmii_en;
if (!machine_is_davinci_da850_evm())
return 0;
cfg_chip3_base = DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG);
val = __raw_readl(cfg_chip3_base);
if (rmii_en) {
val |= BIT(8);
ret = davinci_cfg_reg_list(da850_rmii_pins);
pr_info("EMAC: RMII PHY configured, MII PHY will not be"
" functional\n");
} else {
val &= ~BIT(8);
ret = davinci_cfg_reg_list(da850_cpgmac_pins);
pr_info("EMAC: MII PHY configured, RMII PHY will not be"
" functional\n");
}
if (ret)
pr_warning("da850_evm_init: cpgmac/rmii mux setup failed: %d\n",
ret);
/* configure the CFGCHIP3 register for RMII or MII */
__raw_writel(val, cfg_chip3_base);
ret = davinci_cfg_reg(DA850_GPIO2_6);
if (ret)
pr_warning("da850_evm_init:GPIO(2,6) mux setup "
"failed\n");
ret = gpio_request(DA850_MII_MDIO_CLKEN_PIN, "mdio_clk_en");
if (ret) {
pr_warning("Cannot open GPIO %d\n",
DA850_MII_MDIO_CLKEN_PIN);
return ret;
}
/* Enable/Disable MII MDIO clock */
gpio_direction_output(DA850_MII_MDIO_CLKEN_PIN, rmii_en);
soc_info->emac_pdata->phy_mask = DA850_EVM_PHY_MASK;
soc_info->emac_pdata->mdio_max_freq = DA850_EVM_MDIO_FREQUENCY;
ret = da8xx_register_emac();
if (ret)
pr_warning("da850_evm_init: emac registration failed: %d\n",
ret);
return 0;
}
/**
* da8xx_get_cfgchip - Lazy gets CFGCHIP as regmap
*
* This is for use on non-DT boards only. For DT boards, use
* syscon_regmap_lookup_by_compatible("ti,da830-cfgchip")
*
* Returns: Pointer to the CFGCHIP regmap or negative error code.
*/
struct regmap * __init da8xx_get_cfgchip(void)
{
if (IS_ERR_OR_NULL(da8xx_cfgchip))
da8xx_cfgchip = regmap_init_mmio(NULL,
DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP0_REG),
&da8xx_cfgchip_config);
return da8xx_cfgchip;
}
static int da850_async3_set_parent(struct clk *clk, struct clk *parent)
{
u32 val;
val = readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
if (parent == &pll0_sysclk2) {
val &= ~CFGCHIP3_ASYNC3_CLKSRC;
} else if (parent == &pll1_sysclk2) {
val |= CFGCHIP3_ASYNC3_CLKSRC;
} else {
pr_err("Bad parent on async3 clock mux\n");
return -EINVAL;
}
writel(val, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
return 0;
}
static void da850_set_async3_src(int pllnum)
{
struct clk *clk, *newparent = pllnum ? &pll1_sysclk2 : &pll0_sysclk2;
struct clk_lookup *c;
unsigned int v;
int ret;
for (c = da850_clks; c->clk; c++) {
clk = c->clk;
if (clk->flags & DA850_CLK_ASYNC3) {
ret = clk_set_parent(clk, newparent);
WARN(ret, "DA850: unable to re-parent clock %s",
clk->name);
}
}
v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
if (pllnum)
v |= CFGCHIP3_ASYNC3_CLKSRC;
else
v &= ~CFGCHIP3_ASYNC3_CLKSRC;
__raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
}
static void __init mityomapl138_config_emac(void)
{
void __iomem *cfg_chip3_base;
int ret;
u32 val;
struct davinci_soc_info *soc_info = &davinci_soc_info;
soc_info->emac_pdata->rmii_en = 0; /* hardcoded for now */
cfg_chip3_base = DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG);
val = __raw_readl(cfg_chip3_base);
if (soc_info->emac_pdata->rmii_en) {
val |= BIT(8);
ret = davinci_cfg_reg_list(mityomap_rmii_pins);
pr_info("RMII PHY configured\n");
} else {
val &= ~BIT(8);
ret = davinci_cfg_reg_list(mityomap_mii_pins);
pr_info("MII PHY configured\n");
}
if (ret) {
pr_warning("mii/rmii mux setup failed: %d\n", ret);
return;
}
/* configure the CFGCHIP3 register for RMII or MII */
__raw_writel(val, cfg_chip3_base);
soc_info->emac_pdata->phy_id = MITYOMAPL138_PHY_ID;
ret = da8xx_register_emac();
if (ret)
pr_warning("emac registration failed: %d\n", ret);
}
static __init void da830_evm_usb_init(void)
{
u32 cfgchip2;
int ret;
/*
* Set up USB clock/mode in the CFGCHIP2 register.
* FYI: CFGCHIP2 is 0x0000ef00 initially.
*/
cfgchip2 = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
/* USB2.0 PHY reference clock is 24 MHz */
cfgchip2 &= ~CFGCHIP2_REFFREQ;
cfgchip2 |= CFGCHIP2_REFFREQ_24MHZ;
/*
* Select internal reference clock for USB 2.0 PHY
* and use it as a clock source for USB 1.1 PHY
* (this is the default setting anyway).
*/
cfgchip2 &= ~CFGCHIP2_USB1PHYCLKMUX;
cfgchip2 |= CFGCHIP2_USB2PHYCLKMUX;
/*
* We have to override VBUS/ID signals when MUSB is configured into the
* host-only mode -- ID pin will float if no cable is connected, so the
* controller won't be able to drive VBUS thinking that it's a B-device.
* Otherwise, we want to use the OTG mode and enable VBUS comparators.
*/
cfgchip2 &= ~CFGCHIP2_OTGMODE;
#ifdef CONFIG_USB_MUSB_HOST
cfgchip2 |= CFGCHIP2_FORCE_HOST;
#else
cfgchip2 |= CFGCHIP2_SESENDEN | CFGCHIP2_VBDTCTEN;
#endif
__raw_writel(cfgchip2, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
/* USB_REFCLKIN is not used. */
ret = davinci_cfg_reg(DA830_USB0_DRVVBUS);
if (ret)
pr_warning("%s: USB 2.0 PinMux setup failed: %d\n",
__func__, ret);
else {
/*
* TPS2065 switch @ 5V supplies 1 A (sustains 1.5 A),
* with the power on to power good time of 3 ms.
*/
ret = da8xx_register_usb20(1000, 3);
if (ret)
pr_warning("%s: USB 2.0 registration failed: %d\n",
__func__, ret);
}
ret = davinci_cfg_reg_list(da830_evm_usb11_pins);
if (ret) {
pr_warning("%s: USB 1.1 PinMux setup failed: %d\n",
__func__, ret);
return;
}
ret = gpio_request(ON_BD_USB_DRV, "ON_BD_USB_DRV");
if (ret) {
printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
"power control: %d\n", __func__, ret);
return;
}
gpio_direction_output(ON_BD_USB_DRV, 0);
ret = gpio_request(ON_BD_USB_OVC, "ON_BD_USB_OVC");
if (ret) {
printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
"over-current indicator: %d\n", __func__, ret);
return;
}
gpio_direction_input(ON_BD_USB_OVC);
ret = da8xx_register_usb11(&da830_evm_usb11_pdata);
if (ret)
pr_warning("%s: USB 1.1 registration failed: %d\n",
__func__, ret);
}
/**
* da850_enable_pca9543a() - Enable/Disable I2C switch PCA9543A for sensor
* @en: enable/disable flag
*/
static int da850_enable_pca9543a(int en)
{
static char val = 1;
int status = 1;
struct i2c_msg msg = {
.flags = 0,
.len = 1,
.buf = &val,
};
pr_info("da850evm_enable_pca9543a\n");
if (!en)
val = 0;
if (!pca9543a)
return -ENXIO;
msg.addr = pca9543a->addr;
/* turn i2c switch, pca9543a, on/off */
status = i2c_transfer(pca9543a->adapter, &msg, 1);
if (status == 1)
status = 0;
return status;
}
static const short da850_evm_mii_pins[] = {
DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER,
DA850_MII_CRS, DA850_MII_RXCLK, DA850_MII_RXDV, DA850_MII_RXD_3,
DA850_MII_RXD_2, DA850_MII_RXD_1, DA850_MII_RXD_0, DA850_MDIO_CLK,
DA850_MDIO_D,
-1
};
static const short da850_evm_rmii_pins[] = {
DA850_RMII_TXD_0, DA850_RMII_TXD_1, DA850_RMII_TXEN,
DA850_RMII_CRS_DV, DA850_RMII_RXD_0, DA850_RMII_RXD_1,
DA850_RMII_RXER, DA850_RMII_MHZ_50_CLK, DA850_MDIO_CLK,
DA850_MDIO_D,
-1
};
static int __init da850_evm_config_emac(void)
{
void __iomem *cfg_chip3_base;
int ret;
u32 val;
struct davinci_soc_info *soc_info = &davinci_soc_info;
u8 rmii_en = soc_info->emac_pdata->rmii_en;
if (!machine_is_davinci_da850_evm())
return 0;
cfg_chip3_base = DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG);
val = __raw_readl(cfg_chip3_base);
if (rmii_en) {
val |= BIT(8);
ret = davinci_cfg_reg_list(da850_evm_rmii_pins);
pr_info("EMAC: RMII PHY configured, MII PHY will not be"
" functional\n");
} else {
val &= ~BIT(8);
ret = davinci_cfg_reg_list(da850_evm_mii_pins);
pr_info("EMAC: MII PHY configured, RMII PHY will not be"
" functional\n");
}
if (ret)
pr_warning("da850_evm_init: cpgmac/rmii mux setup failed: %d\n",
ret);
/* configure the CFGCHIP3 register for RMII or MII */
__raw_writel(val, cfg_chip3_base);
ret = davinci_cfg_reg(DA850_GPIO2_6);
if (ret)
pr_warning("da850_evm_init:GPIO(2,6) mux setup "
"failed\n");
ret = gpio_request(DA850_MII_MDIO_CLKEN_PIN, "mdio_clk_en");
if (ret) {
pr_warning("Cannot open GPIO %d\n",
DA850_MII_MDIO_CLKEN_PIN);
return ret;
}
/* Enable/Disable MII MDIO clock */
gpio_direction_output(DA850_MII_MDIO_CLKEN_PIN, rmii_en);
soc_info->emac_pdata->phy_id = DA850_EVM_PHY_ID;
ret = da8xx_register_emac();
if (ret)
pr_warning("da850_evm_init: emac registration failed: %d\n",
ret);
return 0;
}