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-rw-r--r--drivers/pinctrl/mediatek/pinctrl-mt7629.c7
-rw-r--r--drivers/pinctrl/mediatek/pinctrl-mtk-common.c28
-rw-r--r--drivers/serial/serial_mtk.c74
3 files changed, 63 insertions, 46 deletions
diff --git a/drivers/pinctrl/mediatek/pinctrl-mt7629.c b/drivers/pinctrl/mediatek/pinctrl-mt7629.c
index 7ce64fde25f..5d4bec22346 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mt7629.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mt7629.c
@@ -201,6 +201,10 @@ static int mt7629_wf2g_led_funcs[] = { 1, };
static int mt7629_wf5g_led_pins[] = { 18, };
static int mt7629_wf5g_led_funcs[] = { 1, };
+/* LED for EPHY used as JTAG */
+static int mt7629_ephy_leds_jtag_pins[] = { 12, 13, 14, 15, 16, };
+static int mt7629_ephy_leds_jtag_funcs[] = { 7, 7, 7, 7, 7, };
+
/* Watchdog */
static int mt7629_watchdog_pins[] = { 11, };
static int mt7629_watchdog_funcs[] = { 1, };
@@ -297,6 +301,7 @@ static const struct mtk_group_desc mt7629_groups[] = {
PINCTRL_PIN_GROUP("ephy_led2", mt7629_ephy_led2),
PINCTRL_PIN_GROUP("ephy_led3", mt7629_ephy_led3),
PINCTRL_PIN_GROUP("ephy_led4", mt7629_ephy_led4),
+ PINCTRL_PIN_GROUP("ephy_leds_jtag", mt7629_ephy_leds_jtag),
PINCTRL_PIN_GROUP("wf2g_led", mt7629_wf2g_led),
PINCTRL_PIN_GROUP("wf5g_led", mt7629_wf5g_led),
PINCTRL_PIN_GROUP("watchdog", mt7629_watchdog),
@@ -364,6 +369,7 @@ static const char *const mt7629_uart_groups[] = { "uart1_0_txd_rxd",
static const char *const mt7629_wdt_groups[] = { "watchdog", };
static const char *const mt7629_wifi_groups[] = { "wf0_5g", "wf0_2g", };
static const char *const mt7629_flash_groups[] = { "snfi", "spi_nor" };
+static const char *const mt7629_jtag_groups[] = { "ephy_leds_jtag" };
static const struct mtk_function_desc mt7629_functions[] = {
{"eth", mt7629_ethernet_groups, ARRAY_SIZE(mt7629_ethernet_groups)},
@@ -376,6 +382,7 @@ static const struct mtk_function_desc mt7629_functions[] = {
{"watchdog", mt7629_wdt_groups, ARRAY_SIZE(mt7629_wdt_groups)},
{"wifi", mt7629_wifi_groups, ARRAY_SIZE(mt7629_wifi_groups)},
{"flash", mt7629_flash_groups, ARRAY_SIZE(mt7629_flash_groups)},
+ {"jtag", mt7629_jtag_groups, ARRAY_SIZE(mt7629_jtag_groups)},
};
static struct mtk_pinctrl_soc mt7629_data = {
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
index 4dd3f73ead2..3bd23befd88 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
@@ -219,7 +219,7 @@ static const char *mtk_get_pin_name(struct udevice *dev,
{
struct mtk_pinctrl_priv *priv = dev_get_priv(dev);
- if (!priv->soc->grps[selector].name)
+ if (!priv->soc->pins[selector].name)
return mtk_pinctrl_dummy_name;
return priv->soc->pins[selector].name;
@@ -232,6 +232,19 @@ static int mtk_get_pins_count(struct udevice *dev)
return priv->soc->npins;
}
+static int mtk_get_pin_muxing(struct udevice *dev, unsigned int selector,
+ char *buf, int size)
+{
+ int val, err;
+
+ err = mtk_hw_get_value(dev, selector, PINCTRL_PIN_REG_MODE, &val);
+ if (err)
+ return err;
+
+ snprintf(buf, size, "Aux Func.%d", val);
+ return 0;
+}
+
static const char *mtk_get_group_name(struct udevice *dev,
unsigned int selector)
{
@@ -512,6 +525,7 @@ static int mtk_pinconf_group_set(struct udevice *dev,
const struct pinctrl_ops mtk_pinctrl_ops = {
.get_pins_count = mtk_get_pins_count,
.get_pin_name = mtk_get_pin_name,
+ .get_pin_muxing = mtk_get_pin_muxing,
.get_groups_count = mtk_get_groups_count,
.get_group_name = mtk_get_group_name,
.get_functions_count = mtk_get_functions_count,
@@ -526,6 +540,8 @@ const struct pinctrl_ops mtk_pinctrl_ops = {
.set_state = pinctrl_generic_set_state,
};
+#if CONFIG_IS_ENABLED(DM_GPIO) || \
+ (defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_GPIO_SUPPORT))
static int mtk_gpio_get(struct udevice *dev, unsigned int off)
{
int val, err;
@@ -633,12 +649,13 @@ static int mtk_gpiochip_register(struct udevice *parent)
return 0;
}
+#endif
int mtk_pinctrl_common_probe(struct udevice *dev,
struct mtk_pinctrl_soc *soc)
{
struct mtk_pinctrl_priv *priv = dev_get_priv(dev);
- int ret;
+ int ret = 0;
priv->base = dev_read_addr_ptr(dev);
if (!priv->base)
@@ -646,9 +663,10 @@ int mtk_pinctrl_common_probe(struct udevice *dev,
priv->soc = soc;
+#if CONFIG_IS_ENABLED(DM_GPIO) || \
+ (defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_GPIO_SUPPORT))
ret = mtk_gpiochip_register(dev);
- if (ret)
- return ret;
+#endif
- return 0;
+ return ret;
}
diff --git a/drivers/serial/serial_mtk.c b/drivers/serial/serial_mtk.c
index 6d416021dee..4145d9fdb3d 100644
--- a/drivers/serial/serial_mtk.c
+++ b/drivers/serial/serial_mtk.c
@@ -73,74 +73,64 @@ struct mtk_serial_regs {
struct mtk_serial_priv {
struct mtk_serial_regs __iomem *regs;
u32 clock;
+ bool force_highspeed;
};
static void _mtk_serial_setbrg(struct mtk_serial_priv *priv, int baud)
{
- bool support_clk12m_baud115200;
- u32 quot, samplecount, realbaud;
+ u32 quot, realbaud, samplecount = 1;
- if ((baud <= 115200) && (priv->clock == 12000000))
- support_clk12m_baud115200 = true;
- else
- support_clk12m_baud115200 = false;
+ /* Special case for low baud clock */
+ if (baud <= 115200 && priv->clock <= 12000000) {
+ writel(3, &priv->regs->highspeed);
+
+ quot = DIV_ROUND_CLOSEST(priv->clock, 256 * baud);
+ if (quot == 0)
+ quot = 1;
+
+ samplecount = DIV_ROUND_CLOSEST(priv->clock, quot * baud);
+
+ realbaud = priv->clock / samplecount / quot;
+ if (realbaud > BAUD_ALLOW_MAX(baud) ||
+ realbaud < BAUD_ALLOW_MIX(baud)) {
+ pr_info("baud %d can't be handled\n", baud);
+ }
+
+ goto set_baud;
+ }
+
+ if (priv->force_highspeed)
+ goto use_hs3;
if (baud <= 115200) {
writel(0, &priv->regs->highspeed);
quot = DIV_ROUND_CLOSEST(priv->clock, 16 * baud);
-
- if (support_clk12m_baud115200) {
- writel(3, &priv->regs->highspeed);
- quot = DIV_ROUND_CLOSEST(priv->clock, 256 * baud);
- if (quot == 0)
- quot = 1;
-
- samplecount = DIV_ROUND_CLOSEST(priv->clock,
- quot * baud);
- if (samplecount != 0) {
- realbaud = priv->clock / samplecount / quot;
- if ((realbaud > BAUD_ALLOW_MAX(baud)) ||
- (realbaud < BAUD_ALLOW_MIX(baud))) {
- pr_info("baud %d can't be handled\n",
- baud);
- }
- } else {
- pr_info("samplecount is 0\n");
- }
- }
} else if (baud <= 576000) {
writel(2, &priv->regs->highspeed);
/* Set to next lower baudrate supported */
if ((baud == 500000) || (baud == 576000))
baud = 460800;
+
quot = DIV_ROUND_UP(priv->clock, 4 * baud);
} else {
+use_hs3:
writel(3, &priv->regs->highspeed);
+
quot = DIV_ROUND_UP(priv->clock, 256 * baud);
+ samplecount = DIV_ROUND_CLOSEST(priv->clock, quot * baud);
}
+set_baud:
/* set divisor */
writel(UART_LCR_WLS_8 | UART_LCR_DLAB, &priv->regs->lcr);
writel(quot & 0xff, &priv->regs->dll);
writel((quot >> 8) & 0xff, &priv->regs->dlm);
writel(UART_LCR_WLS_8, &priv->regs->lcr);
- if (baud > 460800) {
- u32 tmp;
-
- tmp = DIV_ROUND_CLOSEST(priv->clock, quot * baud);
- writel(tmp - 1, &priv->regs->sample_count);
- writel((tmp - 2) >> 1, &priv->regs->sample_point);
- } else {
- writel(0, &priv->regs->sample_count);
- writel(0xff, &priv->regs->sample_point);
- }
-
- if (support_clk12m_baud115200) {
- writel(samplecount - 1, &priv->regs->sample_count);
- writel((samplecount - 2) >> 1, &priv->regs->sample_point);
- }
+ /* set highspeed mode sample count & point */
+ writel(samplecount - 1, &priv->regs->sample_count);
+ writel((samplecount - 2) >> 1, &priv->regs->sample_point);
}
static int _mtk_serial_putc(struct mtk_serial_priv *priv, const char ch)
@@ -248,6 +238,8 @@ static int mtk_serial_of_to_plat(struct udevice *dev)
return -EINVAL;
}
+ priv->force_highspeed = dev_read_bool(dev, "mediatek,force-highspeed");
+
return 0;
}
generated by cgit v1.2.3 (git 2.0.4) at 2025-10-25 15:49:43 +0000