Merge tag 'for-master-20190103' of git://git.denx.de/u-boot-rockchip

Last-minute fixes for 2019.1:
- clamp DRAM size to below 32bit for 32bit targets to support 4GB
- fix copyright notice on some Rockchip-contributed files
- adjust vdd_log for the RK3399-Q7 to improve stability in some workloads

16 files changed, 317 insertions, 13 deletions

diff --git a/arch/arm/dts/rk3399-puma.dtsi b/arch/arm/dts/rk3399-puma.dtsi
index 9a61fbb4536..8304f67192c 100644
--- a/arch/arm/dts/rk3399-puma.dtsi
+++ b/arch/arm/dts/rk3399-puma.dtsi
@@ -172,10 +172,7 @@
 		regulator-max-microvolt = <1400000>;
 		regulator-always-on;
 		regulator-boot-on;
-
-		/* for rockchip boot on */
-		rockchip,pwm_id= <2>;
-		rockchip,pwm_voltage = <1000000>;
+		regulator-init-microvolt = <950000>;
 	};
 };
 
diff --git a/arch/arm/mach-rockchip/rk3036/sdram_rk3036.c b/arch/arm/mach-rockchip/rk3036/sdram_rk3036.c
index 4e5690eae31..2012d9fe04d 100644
--- a/arch/arm/mach-rockchip/rk3036/sdram_rk3036.c
+++ b/arch/arm/mach-rockchip/rk3036/sdram_rk3036.c
@@ -1,6 +1,6 @@
-// SPDX-License-Identifier: GPL-2.0+
+// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
 /*
- * (C) Copyright 2015 Google, Inc
+ * (C) Copyright 2015 Rockchip Electronics Co., Ltd
  */
 #include <common.h>
 #include <asm/io.h>
diff --git a/arch/arm/mach-rockchip/sdram_common.c b/arch/arm/mach-rockchip/sdram_common.c
index 650d53e4d98..a27138083ab 100644
--- a/arch/arm/mach-rockchip/sdram_common.c
+++ b/arch/arm/mach-rockchip/sdram_common.c
@@ -48,6 +48,24 @@ size_t rockchip_sdram_size(phys_addr_t reg)
 		      rank, col, bk, cs0_row, bw, row_3_4);
 	}
 
+	/*
+	 * This is workaround for issue we can't get correct size for 4GB ram
+	 * in 32bit system and available before we really need ram space
+	 * out of 4GB, eg.enable ARM LAPE(rk3288 supports 8GB ram).
+	 * The size of 4GB is '0x1 00000000', and this value will be truncated
+	 * to 0 in 32bit system, and system can not get correct ram size.
+	 * Rockchip SoCs reserve a blob of space for peripheral near 4GB,
+	 * and we are now setting SDRAM_MAX_SIZE as max available space for
+	 * ram in 4GB, so we can use this directly to workaround the issue.
+	 * TODO:
+	 *   1. update correct value for SDRAM_MAX_SIZE as what dram
+	 *   controller sees.
+	 *   2. update board_get_usable_ram_top() and dram_init_banksize()
+	 *   to reserve memory for peripheral space after previous update.
+	 */
+	if (size_mb > (SDRAM_MAX_SIZE >> 20))
+		size_mb = (SDRAM_MAX_SIZE >> 20);
+
 	return (size_t)size_mb << 20;
 }
 
diff --git a/configs/puma-rk3399_defconfig b/configs/puma-rk3399_defconfig
index a45a34be31c..3c293b69e45 100644
--- a/configs/puma-rk3399_defconfig
+++ b/configs/puma-rk3399_defconfig
@@ -75,10 +75,12 @@ CONFIG_GMAC_ROCKCHIP=y
 CONFIG_PINCTRL=y
 CONFIG_SPL_PINCTRL=y
 CONFIG_PINCTRL_ROCKCHIP_RK3399=y
+CONFIG_PINCTRL_ROCKCHIP_RK3399_FULL=y
 CONFIG_DM_PMIC=y
 CONFIG_DM_PMIC_FAN53555=y
 CONFIG_PMIC_RK8XX=y
 CONFIG_SPL_DM_REGULATOR=y
+CONFIG_REGULATOR_PWM=y
 CONFIG_DM_REGULATOR_FIXED=y
 CONFIG_SPL_DM_REGULATOR_FIXED=y
 CONFIG_DM_REGULATOR_GPIO=y
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 1dbe2b104b2..30a6aa6ee8e 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -238,6 +238,16 @@ config PINCTRL_ROCKCHIP_RK3399
 	  the GPIO definitions and pin control functions for each available
 	  multiplex function.
 
+config PINCTRL_ROCKCHIP_RK3399_FULL
+	bool "Rockchip rk3399 pin control driver (full)"
+	depends on PINCTRL_FULL && PINCTRL_ROCKCHIP_RK3399
+	help
+	  Support full pin multiplexing control on Rockchip rk3399 SoCs.
+
+	  This enables the full pinctrl driver for the RK3399.
+	  Contrary to the non-full pinctrl driver, this will evaluate
+	  the board DTB to get the pinctrl settings.
+
 config PINCTRL_ROCKCHIP_RV1108
 	bool "Rockchip rv1108 pin control driver"
 	depends on DM
diff --git a/drivers/pinctrl/pinctrl-uclass.c b/drivers/pinctrl/pinctrl-uclass.c
index 29c910c55f3..c8b38d78f6b 100644
--- a/drivers/pinctrl/pinctrl-uclass.c
+++ b/drivers/pinctrl/pinctrl-uclass.c
@@ -27,6 +27,28 @@ int pinctrl_decode_pin_config(const void *blob, int node)
 	return flags;
 }
 
+/*
+ * TODO: this function is temporary for v2019.01.
+ * It should be renamed to pinctrl_decode_pin_config(),
+ * the original pinctrl_decode_pin_config() function should
+ * be removed and all callers of the original function should
+ * be migrated to use the new one.
+ */
+int pinctrl_decode_pin_config_dm(struct udevice *dev)
+{
+	int pinconfig = 0;
+
+	if (dev->uclass->uc_drv->id != UCLASS_PINCONFIG)
+		return -EINVAL;
+
+	if (dev_read_bool(dev, "bias-pull-up"))
+		pinconfig |= 1 << PIN_CONFIG_BIAS_PULL_UP;
+	else if (dev_read_bool(dev, "bias-pull-down"))
+		pinconfig |= 1 << PIN_CONFIG_BIAS_PULL_DOWN;
+
+	return pinconfig;
+}
+
 #if CONFIG_IS_ENABLED(PINCTRL_FULL)
 /**
  * pinctrl_config_one() - apply pinctrl settings for a single node
diff --git a/drivers/pinctrl/rockchip/pinctrl_rk3399.c b/drivers/pinctrl/rockchip/pinctrl_rk3399.c
index bc92dd7c062..c4746b0122d 100644
--- a/drivers/pinctrl/rockchip/pinctrl_rk3399.c
+++ b/drivers/pinctrl/rockchip/pinctrl_rk3399.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2016 Rockchip Electronics Co., Ltd
+ * (C) 2018 Theobroma Systems Design und Consulting GmbH
  */
 
 #include <common.h>
@@ -14,11 +15,240 @@
 #include <asm/arch/clock.h>
 #include <dm/pinctrl.h>
 
+#if CONFIG_IS_ENABLED(PINCTRL_ROCKCHIP_RK3399_FULL)
+static const u32 RK_GRF_P_PULLUP = 1;
+static const u32 RK_GRF_P_PULLDOWN = 2;
+#endif /* PINCTRL_ROCKCHIP_RK3399_FULL */
+
 struct rk3399_pinctrl_priv {
 	struct rk3399_grf_regs *grf;
 	struct rk3399_pmugrf_regs *pmugrf;
+	struct rockchip_pin_bank *banks;
+};
+
+#if CONFIG_IS_ENABLED(PINCTRL_ROCKCHIP_RK3399_FULL)
+/* Location of pinctrl/pinconf registers. */
+enum rk_grf_location {
+	RK_GRF,
+	RK_PMUGRF,
+};
+
+/**
+ * @nr_pins: number of pins in this bank
+ * @grf_location: location of pinctrl/pinconf registers
+ * @bank_num: number of the bank, to account for holes
+ * @iomux: array describing the 4 iomux sources of the bank
+ */
+struct rockchip_pin_bank {
+	u8 nr_pins;
+	enum rk_grf_location grf_location;
+	size_t iomux_offset;
+	size_t pupd_offset;
+};
+
+#define PIN_BANK(pins, grf, iomux, pupd)		\
+	{						\
+		.nr_pins = pins,			\
+		.grf_location = grf,			\
+		.iomux_offset = iomux,			\
+		.pupd_offset = pupd,			\
+	}
+
+static struct rockchip_pin_bank rk3399_pin_banks[] = {
+	PIN_BANK(16, RK_PMUGRF,
+		 offsetof(struct rk3399_pmugrf_regs, gpio0a_iomux),
+		 offsetof(struct rk3399_pmugrf_regs, gpio0_p)),
+	PIN_BANK(32, RK_PMUGRF,
+		 offsetof(struct rk3399_pmugrf_regs, gpio1a_iomux),
+		 offsetof(struct rk3399_pmugrf_regs, gpio1_p)),
+	PIN_BANK(32, RK_GRF,
+		 offsetof(struct rk3399_grf_regs, gpio2a_iomux),
+		 offsetof(struct rk3399_grf_regs, gpio2_p)),
+	PIN_BANK(32, RK_GRF,
+		 offsetof(struct rk3399_grf_regs, gpio3a_iomux),
+		 offsetof(struct rk3399_grf_regs, gpio3_p)),
+	PIN_BANK(32, RK_GRF,
+		 offsetof(struct rk3399_grf_regs, gpio4a_iomux),
+		 offsetof(struct rk3399_grf_regs, gpio4_p)),
 };
 
+static void rk_pinctrl_get_info(uintptr_t base, u32 index, uintptr_t *addr,
+				u32 *shift, u32 *mask)
+{
+	/*
+	 * In general we four subsequent 32-bit configuration registers
+	 * per bank (e.g. GPIO2A_P, GPIO2B_P, GPIO2C_P, GPIO2D_P).
+	 * The configuration for each pin has two bits.
+	 *
+	 * @base...contains the address to the first register.
+	 * @index...defines the pin within the bank (0..31).
+	 * @addr...will be the address of the actual register to use
+	 * @shift...will be the bit position in the configuration register
+	 * @mask...will be the (unshifted) mask
+	 */
+
+	const u32 pins_per_register = 8;
+	const u32 config_bits_per_pin = 2;
+
+	/* Get the address of the configuration register. */
+	*addr = base + (index / pins_per_register) * sizeof(u32);
+
+	/* Get the bit offset within the configuration register. */
+	*shift = (index & (pins_per_register - 1)) * config_bits_per_pin;
+
+	/* Get the (unshifted) mask for the configuration pins. */
+	*mask = ((1 << config_bits_per_pin) - 1);
+
+	pr_debug("%s: addr=0x%lx, mask=0x%x, shift=0x%x\n",
+		 __func__, *addr, *mask, *shift);
+}
+
+static void rk3399_pinctrl_set_pin_iomux(uintptr_t grf_addr,
+					 struct rockchip_pin_bank *bank,
+					 u32 index, u32 muxval)
+{
+	uintptr_t iomux_base, addr;
+	u32 shift, mask;
+
+	iomux_base = grf_addr + bank->iomux_offset;
+	rk_pinctrl_get_info(iomux_base, index, &addr, &shift, &mask);
+
+	/* Set pinmux register */
+	rk_clrsetreg(addr, mask << shift, muxval << shift);
+}
+
+static void rk3399_pinctrl_set_pin_pupd(uintptr_t grf_addr,
+					struct rockchip_pin_bank *bank,
+					u32 index, int pinconfig)
+{
+	uintptr_t pupd_base, addr;
+	u32 shift, mask, pupdval;
+
+	/* Fast path in case there's nothing to do. */
+	if (!pinconfig)
+		return;
+
+	if (pinconfig & (1 << PIN_CONFIG_BIAS_PULL_UP))
+		pupdval = RK_GRF_P_PULLUP;
+	else if (pinconfig & (1 << PIN_CONFIG_BIAS_PULL_DOWN))
+		pupdval = RK_GRF_P_PULLDOWN;
+	else
+		/* Flag not supported. */
+		pr_warn("%s: Unsupported pinconfig flag: 0x%x\n", __func__,
+			pinconfig);
+		return;
+
+	pupd_base = grf_addr + (uintptr_t)bank->pupd_offset;
+	rk_pinctrl_get_info(pupd_base, index, &addr, &shift, &mask);
+
+	/* Set pull-up/pull-down regisrer */
+	rk_clrsetreg(addr, mask << shift, pupdval << shift);
+}
+
+static int rk3399_pinctrl_set_pin(struct udevice *dev, u32 banknum, u32 index,
+				  u32 muxval, int pinconfig)
+{
+	struct rk3399_pinctrl_priv *priv = dev_get_priv(dev);
+	struct rockchip_pin_bank *bank = &priv->banks[banknum];
+	uintptr_t grf_addr;
+
+	pr_debug("%s: 0x%x 0x%x 0x%x 0x%x\n", __func__, banknum, index, muxval,
+		 pinconfig);
+
+	if (bank->grf_location == RK_GRF)
+		grf_addr = (uintptr_t)priv->grf;
+	else if (bank->grf_location == RK_PMUGRF)
+		grf_addr = (uintptr_t)priv->pmugrf;
+	else
+		return -EINVAL;
+
+	rk3399_pinctrl_set_pin_iomux(grf_addr, bank, index, muxval);
+
+	rk3399_pinctrl_set_pin_pupd(grf_addr, bank, index, pinconfig);
+	return 0;
+}
+
+static int rk3399_pinctrl_set_state(struct udevice *dev, struct udevice *config)
+{
+	/*
+	 * The order of the fields in this struct must match the order of
+	 * the fields in the "rockchip,pins" property.
+	 */
+	struct rk_pin {
+		u32 banknum;
+		u32 index;
+		u32 muxval;
+		u32 phandle;
+	} __packed;
+
+	u32 *fields = NULL;
+	const int fields_per_pin = 4;
+	int num_fields, num_pins;
+	int ret;
+	int size;
+	int i;
+	struct rk_pin *pin;
+
+	pr_debug("%s: %s\n", __func__, config->name);
+
+	size = dev_read_size(config, "rockchip,pins");
+	if (size < 0)
+		return -EINVAL;
+
+	num_fields = size / sizeof(u32);
+	num_pins = num_fields / fields_per_pin;
+
+	if (num_fields * sizeof(u32) != size ||
+	    num_pins * fields_per_pin != num_fields) {
+		pr_warn("Invalid number of rockchip,pins fields.\n");
+		return -EINVAL;
+	}
+
+	fields = calloc(num_fields, sizeof(u32));
+	if (!fields)
+		return -ENOMEM;
+
+	ret = dev_read_u32_array(config, "rockchip,pins", fields, num_fields);
+	if (ret) {
+		pr_warn("%s: Failed to read rockchip,pins fields.\n",
+			config->name);
+		goto end;
+	}
+
+	pin = (struct rk_pin *)fields;
+	for (i = 0; i < num_pins; i++, pin++) {
+		struct udevice *dev_pinconfig;
+		int pinconfig;
+
+		ret = uclass_get_device_by_phandle_id(UCLASS_PINCONFIG,
+						      pin->phandle,
+						      &dev_pinconfig);
+		if (ret) {
+			pr_debug("Could not get pinconfig device\n");
+			goto end;
+		}
+
+		pinconfig = pinctrl_decode_pin_config_dm(dev_pinconfig);
+		if (pinconfig < 0) {
+			pr_warn("Could not parse pinconfig\n");
+			goto end;
+		}
+
+		ret = rk3399_pinctrl_set_pin(dev, pin->banknum, pin->index,
+					     pin->muxval, pinconfig);
+		if (ret) {
+			pr_warn("Could not set pinctrl settings\n");
+			goto end;
+		}
+	}
+
+end:
+	free(fields);
+	return ret;
+}
+
+#endif /* PINCTRL_ROCKCHIP_RK3399_FULL */
+
 static void pinctrl_rk3399_pwm_config(struct rk3399_grf_regs *grf,
 		struct rk3399_pmugrf_regs *pmugrf, int pwm_id)
 {
@@ -468,6 +698,9 @@ static int rk3399_pinctrl_set_state_simple(struct udevice *dev,
 }
 
 static struct pinctrl_ops rk3399_pinctrl_ops = {
+#if CONFIG_IS_ENABLED(PINCTRL_ROCKCHIP_RK3399_FULL)
+	.set_state	= rk3399_pinctrl_set_state,
+#endif
 	.set_state_simple	= rk3399_pinctrl_set_state_simple,
 	.request	= rk3399_pinctrl_request,
 	.get_periph_id	= rk3399_pinctrl_get_periph_id,
@@ -481,6 +714,9 @@ static int rk3399_pinctrl_probe(struct udevice *dev)
 	priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
 	priv->pmugrf = syscon_get_first_range(ROCKCHIP_SYSCON_PMUGRF);
 	debug("%s: grf=%p, pmugrf=%p\n", __func__, priv->grf, priv->pmugrf);
+#if CONFIG_IS_ENABLED(PINCTRL_ROCKCHIP_RK3399_FULL)
+	priv->banks = rk3399_pin_banks;
+#endif /* PINCTRL_ROCKCHIP_RK3399_FULL */
 
 	return ret;
 }
diff --git a/drivers/power/regulator/Kconfig b/drivers/power/regulator/Kconfig
index 09b311de8bb..3ed0dd2264a 100644
--- a/drivers/power/regulator/Kconfig
+++ b/drivers/power/regulator/Kconfig
@@ -61,6 +61,13 @@ config REGULATOR_PWM
 	This driver is controlled by a device tree node
 	which includes voltage limits.
 
+config SPL_REGULATOR_PWM
+	bool "Enable Driver for PWM regulators in SPL"
+	depends on REGULATOR_PWM
+	help
+	  This config enables implementation of driver-model regulator uclass
+	  features for PWM regulators in SPL.
+
 config DM_REGULATOR_MAX77686
 	bool "Enable Driver Model for REGULATOR MAX77686"
 	depends on DM_REGULATOR && DM_PMIC_MAX77686
diff --git a/drivers/power/regulator/Makefile b/drivers/power/regulator/Makefile
index 8017045d542..f617ce723a9 100644
--- a/drivers/power/regulator/Makefile
+++ b/drivers/power/regulator/Makefile
@@ -9,7 +9,7 @@ obj-$(CONFIG_REGULATOR_ACT8846) += act8846.o
 obj-$(CONFIG_REGULATOR_AS3722)	+= as3722_regulator.o
 obj-$(CONFIG_DM_REGULATOR_MAX77686) += max77686.o
 obj-$(CONFIG_$(SPL_)DM_PMIC_PFUZE100) += pfuze100.o
-obj-$(CONFIG_REGULATOR_PWM) += pwm_regulator.o
+obj-$(CONFIG_$(SPL_)REGULATOR_PWM) += pwm_regulator.o
 obj-$(CONFIG_$(SPL_)DM_REGULATOR_FAN53555) += fan53555.o
 obj-$(CONFIG_$(SPL_)DM_REGULATOR_FIXED) += fixed.o
 obj-$(CONFIG_$(SPL_)DM_REGULATOR_GPIO) += gpio-regulator.o
diff --git a/drivers/ram/rockchip/sdram_rk3128.c b/drivers/ram/rockchip/sdram_rk3128.c
index 49689002114..df7b9887033 100644
--- a/drivers/ram/rockchip/sdram_rk3128.c
+++ b/drivers/ram/rockchip/sdram_rk3128.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0
+// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
 /*
  * (C) Copyright 2017 Rockchip Electronics Co., Ltd.
  */
diff --git a/drivers/ram/rockchip/sdram_rk3188.c b/drivers/ram/rockchip/sdram_rk3188.c
index 3774abfa98a..fdd500aa472 100644
--- a/drivers/ram/rockchip/sdram_rk3188.c
+++ b/drivers/ram/rockchip/sdram_rk3188.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0
+// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
 /*
  * (C) Copyright 2015 Google, Inc
  * Copyright 2014 Rockchip Inc.
diff --git a/drivers/ram/rockchip/sdram_rk322x.c b/drivers/ram/rockchip/sdram_rk322x.c
index e079ef7a70c..53835a9cd08 100644
--- a/drivers/ram/rockchip/sdram_rk322x.c
+++ b/drivers/ram/rockchip/sdram_rk322x.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0
+// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
 /*
  * (C) Copyright 2017 Rockchip Electronics Co., Ltd
  */
diff --git a/drivers/ram/rockchip/sdram_rk3288.c b/drivers/ram/rockchip/sdram_rk3288.c
index bb3cf48788c..d1e52d84e7a 100644
--- a/drivers/ram/rockchip/sdram_rk3288.c
+++ b/drivers/ram/rockchip/sdram_rk3288.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0
+// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
 /*
  * (C) Copyright 2015 Google, Inc
  * Copyright 2014 Rockchip Inc.
diff --git a/drivers/ram/rockchip/sdram_rk3328.c b/drivers/ram/rockchip/sdram_rk3328.c
index 89d95b4f897..e8b234d8665 100644
--- a/drivers/ram/rockchip/sdram_rk3328.c
+++ b/drivers/ram/rockchip/sdram_rk3328.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0
+// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
 /*
  * (C) Copyright 2017 Rockchip Electronics Co., Ltd.
  */
diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c
index 49ebd8809f0..94dd01156a7 100644
--- a/drivers/ram/rockchip/sdram_rk3399.c
+++ b/drivers/ram/rockchip/sdram_rk3399.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0
+// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
 /*
  * (C) Copyright 2016-2017 Rockchip Inc.
  *
diff --git a/include/dm/pinctrl.h b/include/dm/pinctrl.h
index 63a7d55b888..ff2b82e7c25 100644
--- a/include/dm/pinctrl.h
+++ b/include/dm/pinctrl.h
@@ -355,6 +355,18 @@ int pinctrl_get_periph_id(struct udevice *dev, struct udevice *periph);
 int pinctrl_decode_pin_config(const void *blob, int node);
 
 /**
+ * pinctrl_decode_pin_config_dm() - decode pin configuration flags
+ *
+ * This decodes some of the PIN_CONFIG values into flags, with each value
+ * being (1 << pin_cfg). This does not support things with values like the
+ * slew rate.
+ *
+ * @pinconfig:	Pinconfig udevice
+ * @return decoded flag value, or -ve on error
+ */
+int pinctrl_decode_pin_config_dm(struct udevice *dev);
+
+/**
  * pinctrl_get_gpio_mux() - get the mux value for a particular GPIO
  *
  * This allows the raw mux value for a GPIO to be obtained. It is