Add a driver which support pin multiplexing setup for rk3036
Signed-off-by: Lin Huang
Acked-by: Simon Glass
---
Changes in v1:
- clean copyright announcement
Changes in v2: None
Changes in v3:
- fix some coding style error
Changes in v4: None
Changes in v5: None
drivers/pinctrl/Kconfig | 18 ++
drivers/pinctrl/rockchip/Makefile | 1 +
drivers/pinctrl/rockchip/pinctrl_rk3036.c | 276 ++
3 files changed, 295 insertions(+)
create mode 100644 drivers/pinctrl/rockchip/pinctrl_rk3036.c
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 3b6e3b7..6495313 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -114,6 +114,24 @@ config ROCKCHIP_PINCTRL
definitions and pin control functions for each available multiplex
function.
+config ROCKCHIP_3036_PINCTRL
+ bool "Rockchip rk3036 pin control driver"
+ depends on DM
+ help
+ Support pin multiplexing control on Rockchip rk3036 SoCs. The driver
is
+ controlled by a device tree node which contains both the GPIO
+ definitions and pin control functions for each available multiplex
+ function.
+
+config ROCKCHIP_PINCTRL
+ bool "Rockchip pin control driver"
+ depends on DM
+ help
+ Support pin multiplexing control on Rockchip SoCs. The driver is
+ controlled by a device tree node which contains both the GPIO
+ definitions and pin control functions for each available multiplex
+ function.
+
config PINCTRL_SANDBOX
bool "Sandbox pinctrl driver"
depends on SANDBOX
diff --git a/drivers/pinctrl/rockchip/Makefile
b/drivers/pinctrl/rockchip/Makefile
index 251bace..6fa7d00 100644
--- a/drivers/pinctrl/rockchip/Makefile
+++ b/drivers/pinctrl/rockchip/Makefile
@@ -6,3 +6,4 @@
#
obj-$(CONFIG_ROCKCHIP_PINCTRL) += pinctrl_rk3288.o
+obj-$(CONFIG_ROCKCHIP_3036_PINCTRL) += pinctrl_rk3036.o
diff --git a/drivers/pinctrl/rockchip/pinctrl_rk3036.c
b/drivers/pinctrl/rockchip/pinctrl_rk3036.c
new file mode 100644
index 000..581b096
--- /dev/null
+++ b/drivers/pinctrl/rockchip/pinctrl_rk3036.c
@@ -0,0 +1,276 @@
+/*
+ * Pinctrl driver for Rockchip 3036 SoCs
+ * (C) Copyright 2015 Rockchip Electronics Co., Ltd
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct rk3036_pinctrl_priv {
+ struct rk3036_grf *grf;
+};
+
+static void pinctrl_rk3036_pwm_config(struct rk3036_grf *grf, int pwm_id)
+{
+ switch (pwm_id) {
+ case PERIPH_ID_PWM0:
+ rk_clrsetreg(&grf->gpio0d_iomux, GPIO0D2_MASK << GPIO0D2_SHIFT,
+GPIO0D2_PWM0 << GPIO0D2_SHIFT);
+ break;
+ case PERIPH_ID_PWM1:
+ rk_clrsetreg(&grf->gpio0a_iomux, GPIO0A0_MASK << GPIO0A0_SHIFT,
+GPIO0A0_PWM1 << GPIO0A0_SHIFT);
+ break;
+ case PERIPH_ID_PWM2:
+ rk_clrsetreg(&grf->gpio0a_iomux, GPIO0A1_MASK << GPIO0A1_SHIFT,
+GPIO0A1_PWM2 << GPIO0A1_SHIFT);
+ break;
+ case PERIPH_ID_PWM3:
+ rk_clrsetreg(&grf->gpio0a_iomux, GPIO0D3_MASK << GPIO0D3_SHIFT,
+GPIO0D3_PWM3 << GPIO0D3_SHIFT);
+ break;
+ default:
+ debug("pwm id = %d iomux error!\n", pwm_id);
+ break;
+ }
+}
+
+static void pinctrl_rk3036_i2c_config(struct rk3036_grf *grf, int i2c_id)
+{
+ switch (i2c_id) {
+ case PERIPH_ID_I2C0:
+ rk_clrsetreg(&grf->gpio0a_iomux,
+GPIO0A1_MASK << GPIO0A1_SHIFT |
+GPIO0A0_MASK << GPIO0A0_SHIFT,
+GPIO0A1_I2C0_SDA << GPIO0A1_SHIFT |
+GPIO0A0_I2C0_SCL << GPIO0A0_SHIFT);
+
+ break;
+ case PERIPH_ID_I2C1:
+ rk_clrsetreg(&grf->gpio0a_iomux,
+GPIO0A3_MASK << GPIO0A3_SHIFT |
+GPIO0A2_MASK << GPIO0A2_SHIFT,
+GPIO0A3_I2C1_SDA << GPIO0A3_SHIFT |
+GPIO0A2_I2C1_SCL << GPIO0A2_SHIFT);
+ break;
+ case PERIPH_ID_I2C2:
+ rk_clrsetreg(&grf->gpio2c_iomux,
+GPIO2C5_MASK << GPIO2C5_SHIFT |
+GPIO2C4_MASK << GPIO2C4_SHIFT,
+GPIO2C5_I2C2_SCL << GPIO2C5_SHIFT |
+GPIO2C4_I2C2_SDA << GPIO2C4_SHIFT);
+
+ break;
+ }
+}
+
+static void pinctrl_rk3036_spi_config(struct rk3036_grf *grf, int cs)
+{
+ switch (cs) {
+ case 0:
+ rk_clrsetreg(&grf->gpio1d_iomux,
+GPIO1D6_MASK << GPIO1D6_SHIFT,
+GPIO1D6_SPI_CSN0
