[U-Boot] [PATCH v2 00/31] dm: tegra: Move nyan-big and beaver to livetree

[U-Boot] [PATCH v2 00/31] dm: tegra: Move nyan-big and beaver to livetree

[Simon Glass]

This moves an entire board to use a live device tree as an example of the
impact.

Nyan-big was chosen because I can easily and boot U-Boot without any
media swapping, etc. Beaver is enabled as well since it failed to boot
with serial v1 due to a disabled console node.

Total code size impact on this board is approximately 9KB on U-Boot and
64 bytes on SPL:

27: dm: tegra: nyan-big: Move to livetree
       arm: (for 1/1 boards) all +9264.0 bss -16.0 data +44.0 rodata +92.0
          spl/u-boot-spl:all +326.0 spl/u-boot-spl:rodata +262.0
          spl/u-boot-spl:text +64.0 text +9144.0

Tegra does not use Thumb2, which would likely reduce the code size by about
25%, indicating a code-size impact of perhaps 7KB.

Boot time is affected slightly. For nyan-big the times with flat tree are:

                 2,108  dm_r
                 7,924  dm_spl
               120,724  dm_f
               171,816  lcd

With the livetree:

                   721  dm_r
                 3,764  of_live
                 7,990  dm_spl
               120,736  dm_f
               168,215  lcd

As expected the spl and pre-relocation times are not affected. In the
post-relocation case, the live tree must be built, which here takes about
3.8ms. Driver-model device creation takes a bit of 1ms less time with the
livetree, so all up the cost is about 2.4ms. After DM init there appears
to be a slight reduction in the time taken to set up devices (from 327ms
to 319ms) so overall the live tree does not appear to be any slower. This
is because pre-parsing the device tree makes reading it later faster.

The use of livetree is controlled by a the CONFIG_OF_LIVE option. When
enabled, U-Boot builds a livetree immediately after relocation and uses
it from then on.

This series is available at u-boot-dm/livet-working

Changes in v2:
- Add new patch to enable bootstage for nyan-big
- Add new patch to ensure that the console UART is enabled
- Enable livetree for beaver also
- Add timing information

Simon Glass (31):
  tegra: video: Time the LCD init
  tegra: nyan-big: Enable the debug UART
  dm: Fix error handling when unflattening the DT
  tegra: nyan-big: Enable bootstage
  dm: video: Sync display on backspace
  dm: video: Update pwm_backlight to support livetree
  video: simple-panel: Add a little more debugging
  tegra: Fix up include file ordering
  tegra: spl: Enable debug UART
  tegra: nyan: Add a PMC syscon driver
  dm: tegra: Convert USB setup to livetree
  dm: tegra: Convert clock_decode_periph_id() to support livetree
  dm: video: tegra124: Convert to livetree
  tegra: Don't set up the UART clocks again in U-Boot
  tegra: dts: Move stdout-path to /chosen
  dm: tegra: gpio: Convert to support livetree
  dm: tegra: usb: Convert to livetree
  dm: tegra: spi: Convert to livetree
  dm: tegra: i2c: Convert to livetree
  dm: tegra: pwm: Convert to livetree
  dm: tegra: mmc: Convert to livetree
  power: Add a regulator driver for the as3722 PMIC
  power: Add a GPIO driver for the as3722 PMIC
  dm: power: Convert as3722 to driver model
  dm: serial: ns16550: Convert to livetree
  dm: serial: Separate out the core serial-device finding code
  dm: serial: Add livetree support
  tegra: Show a debug message if the LCD PMIC fails to start
  fdtdec: Drop old compatible values
  tegra: fdt: Ensure that the console UART is enabled
  dm: tegra: Move nyan-big and beaver to livetree

 arch/arm/dts/tegra114-dalmore.dts             |   4 +
 arch/arm/dts/tegra124-cei-tk1-som.dts         |   4 +
 arch/arm/dts/tegra124-jetson-tk1.dts          |   4 +
 arch/arm/dts/tegra124-nyan-big.dts            |   5 +-
 arch/arm/dts/tegra124-venice2.dts             |   4 +
 arch/arm/dts/tegra186-p2771-0000.dtsi         |   4 +
 arch/arm/dts/tegra20-colibri.dts              |   4 +
 arch/arm/dts/tegra20-harmony.dts              |   4 +
 arch/arm/dts/tegra20-trimslice.dts            |   4 +
 arch/arm/dts/tegra20-whistler.dts             |   4 +
 arch/arm/dts/tegra210-e2220-1170.dts          |   4 +
 arch/arm/dts/tegra210-p2371-0000.dts          |   4 +
 arch/arm/dts/tegra210-p2371-2180.dts          |   4 +
 arch/arm/dts/tegra210-p2571.dts               |   4 +
 arch/arm/dts/tegra30-apalis.dts               |   4 +
 arch/arm/dts/tegra30-beaver.dts               |   4 +
 arch/arm/dts/tegra30-cardhu.dts               |   4 +
 arch/arm/dts/tegra30-colibri.dts              |   4 +
 arch/arm/dts/tegra30-tec-ng.dts               |   4 +
 arch/arm/include/asm/arch-tegra/clock.h       |   2 +-
 arch/arm/include/asm/arch-tegra/tegra.h       |   5 +
 arch/arm/include/asm/arch-tegra/xusb-padctl.h |   2 +-
 arch/arm/mach-tegra/board.c                   |   2 +
 arch/arm/mach-tegra/board2.c                  |  34 ++-
 arch/arm/mach-tegra/clock.c                   |   9 +-
 arch/arm/mach-tegra/spl.c                     |   4 +
 arch/arm/mach-tegra/tegra124/Makefile         |   1 +
 arch/arm/mach-tegra/tegra124/pmc.c            |  19 ++
 arch/arm/mach-tegra/tegra124/xusb-padctl.c    |  36 +++-
 arch/arm/mach-tegra/tegra210/xusb-padctl.c    |  40 +++-
 arch/arm/mach-tegra/xusb-padctl-common.c      |  84 ++++----
 arch/arm/mach-tegra/xusb-padctl-common.h      |  11 +-
 arch/arm/mach-tegra/xusb-padctl-dummy.c       |   2 +-
 board/cei/cei-tk1-som/cei-tk1-som.c           |   2 +
 board/nvidia/jetson-tk1/jetson-tk1.c          |   2 +
 board/nvidia/nyan-big/nyan-big.c              |  22 +-
 board/toradex/apalis-tk1/apalis-tk1.c         |   6 +
 configs/apalis-tk1_defconfig                  |   3 +
 configs/beaver_defconfig                      |   1 +
 configs/cei-tk1-som_defconfig                 |   3 +
 configs/jetson-tk1_defconfig                  |   3 +
 configs/nyan-big_defconfig                    |  13 ++
 drivers/gpio/tegra_gpio.c                     |  10 +-
 drivers/i2c/tegra_i2c.c                       |   6 +-
 drivers/mmc/tegra_mmc.c                       |  17 +-
 drivers/power/pmic/Makefile                   |   2 +-
 drivers/power/pmic/as3722.c                   | 292 +++++++++-----------------
 drivers/power/pmic/as3722_gpio.c              | 120 +++++++++++
 drivers/power/regulator/Kconfig               |   9 +
 drivers/power/regulator/Makefile              |   1 +
 drivers/power/regulator/as3722_regulator.c    | 149 +++++++++++++
 drivers/pwm/tegra_pwm.c                       |   2 +-
 drivers/serial/ns16550.c                      |  15 +-
 drivers/serial/serial-uclass.c                |  92 ++++----
 drivers/spi/tegra114_spi.c                    |  15 +-
 drivers/spi/tegra20_sflash.c                  |   2 +-
 drivers/spi/tegra20_slink.c                   |   2 +-
 drivers/spi/tegra210_qspi.c                   |   2 +-
 drivers/usb/host/ehci-tegra.c                 |  36 ++--
 drivers/video/pwm_backlight.c                 |  22 +-
 drivers/video/simple_panel.c                  |   2 +
 drivers/video/tegra124/display.c              |  10 +-
 drivers/video/tegra124/dp.c                   |   3 +-
 drivers/video/tegra124/sor.c                  |  25 +--
 drivers/video/vidconsole-uclass.c             |   1 +
 include/fdtdec.h                              |   6 -
 include/power/as3722.h                        |  27 ++-
 lib/fdtdec.c                                  |   6 -
 lib/of_live.c                                 |   7 +-
 69 files changed, 807 insertions(+), 457 deletions(-)
 create mode 100644 arch/arm/mach-tegra/tegra124/pmc.c
 create mode 100644 drivers/power/pmic/as3722_gpio.c
 create mode 100644 drivers/power/regulator/as3722_regulator.c

-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 01/31] tegra: video: Time the LCD init

[Simon Glass]

Calculate the time taken to set up the LCD.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 drivers/video/tegra124/display.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/video/tegra124/display.c b/drivers/video/tegra124/display.c
index bbbca13bdc..47752b27f1 100644
--- a/drivers/video/tegra124/display.c
+++ b/drivers/video/tegra124/display.c
@@ -471,7 +471,9 @@ static int tegra124_lcd_probe(struct udevice *dev)
 	int ret;
 
 	start = get_timer(0);
+	bootstage_start(BOOTSTAGE_ID_ACCUM_LCD, "lcd");
 	ret = tegra124_lcd_init(dev, (void *)plat->base, VIDEO_BPP16);
+	bootstage_accum(BOOTSTAGE_ID_ACCUM_LCD);
 	debug("LCD init took %lu ms\n", get_timer(start));
 	if (ret)
 		printf("%s: Error %d\n", __func__, ret);
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 02/31] tegra: nyan-big: Enable the debug UART

[Simon Glass]

Enable this to allow debugging when the serial UART driver is
misconfigured.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 configs/nyan-big_defconfig | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/configs/nyan-big_defconfig b/configs/nyan-big_defconfig
index f0fad3e459..cfadee9ee8 100644
--- a/configs/nyan-big_defconfig
+++ b/configs/nyan-big_defconfig
@@ -45,6 +45,10 @@ CONFIG_PMIC_AS3722=y
 CONFIG_DM_REGULATOR=y
 CONFIG_DM_REGULATOR_FIXED=y
 CONFIG_PWM_TEGRA=y
+CONFIG_DEBUG_UART=y
+CONFIG_DEBUG_UART_BASE=0x70006000
+CONFIG_DEBUG_UART_CLOCK=408000000
+CONFIG_DEBUG_UART_SHIFT=2
 CONFIG_SYS_NS16550=y
 CONFIG_TEGRA114_SPI=y
 CONFIG_TPM_TIS_INFINEON=y
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 03/31] dm: Fix error handling when unflattening the DT

[Simon Glass]

The error handling code does not current detect an error right away.
Adjust it to return immediately.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 lib/of_live.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/of_live.c b/lib/of_live.c
index 51927f9e91..f351483387 100644
--- a/lib/of_live.c
+++ b/lib/of_live.c
@@ -216,9 +216,12 @@ static void *unflatten_dt_node(const void *blob, void *mem, int *poffset,
 	*poffset = fdt_next_node(blob, *poffset, &depth);
 	if (depth < 0)
 		depth = 0;
-	while (*poffset > 0 && depth > old_depth)
+	while (*poffset > 0 && depth > old_depth) {
 		mem = unflatten_dt_node(blob, mem, poffset, np, NULL,
 					fpsize, dryrun);
+		if (!mem)
+			return NULL;
+	}
 
 	if (*poffset < 0 && *poffset != -FDT_ERR_NOTFOUND) {
 		debug("unflatten: error %d processing FDT\n", *poffset);
@@ -286,6 +289,8 @@ static int unflatten_device_tree(const void *blob,
 	start = 0;
 	size = (unsigned long)unflatten_dt_node(blob, NULL, &start, NULL, NULL,
 						0, true);
+	if (!size)
+		return -EFAULT;
 	size = ALIGN(size, 4);
 
 	debug("  size is %lx, allocating...\n", size);
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 04/31] tegra: nyan-big: Enable bootstage

[Simon Glass]

Enable full bootstage support so we can time SPL and U-Boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2:
- Add new patch to enable bootstage for nyan-big

 configs/nyan-big_defconfig | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/configs/nyan-big_defconfig b/configs/nyan-big_defconfig
index cfadee9ee8..827df8af49 100644
--- a/configs/nyan-big_defconfig
+++ b/configs/nyan-big_defconfig
@@ -6,6 +6,10 @@ CONFIG_DEFAULT_DEVICE_TREE="tegra124-nyan-big"
 CONFIG_FIT=y
 CONFIG_FIT_BEST_MATCH=y
 CONFIG_OF_SYSTEM_SETUP=y
+CONFIG_BOOTSTAGE=y
+CONFIG_SPL_BOOTSTAGE=y
+CONFIG_BOOTSTAGE_STASH=y
+CONFIG_BOOTSTAGE_STASH_ADDR=0x83000000
 CONFIG_SYS_STDIO_DEREGISTER=y
 CONFIG_SYS_PROMPT="Tegra124 (Nyan-big) # "
 # CONFIG_CMD_IMI is not set
@@ -23,6 +27,7 @@ CONFIG_CMD_GPIO=y
 # CONFIG_CMD_SETEXPR is not set
 # CONFIG_CMD_NFS is not set
 CONFIG_CMD_BMP=y
+CONFIG_CMD_BOOTSTAGE=y
 CONFIG_CMD_PMIC=y
 CONFIG_CMD_REGULATOR=y
 CONFIG_CMD_TPM=y
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 05/31] dm: video: Sync display on backspace

[Simon Glass]

We should sync the display (e.g. flush cache) when backspace is pressed
to ensure that the character is erased correctly.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
---

Changes in v2: None

 drivers/video/vidconsole-uclass.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/video/vidconsole-uclass.c b/drivers/video/vidconsole-uclass.c
index e9a90b1b9b..b5afd72227 100644
--- a/drivers/video/vidconsole-uclass.c
+++ b/drivers/video/vidconsole-uclass.c
@@ -77,6 +77,7 @@ static int vidconsole_back(struct udevice *dev)
 		if (priv->ycur < 0)
 			priv->ycur = 0;
 	}
+	video_sync(dev->parent);
 
 	return 0;
 }
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 06/31] dm: video: Update pwm_backlight to support livetree

[Simon Glass]

Update this driver to support a live device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
---

Changes in v2: None

 drivers/video/pwm_backlight.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/video/pwm_backlight.c b/drivers/video/pwm_backlight.c
index 3697f4905c..fbd7bf7838 100644
--- a/drivers/video/pwm_backlight.c
+++ b/drivers/video/pwm_backlight.c
@@ -28,11 +28,13 @@ struct pwm_backlight_priv {
 static int pwm_backlight_enable(struct udevice *dev)
 {
 	struct pwm_backlight_priv *priv = dev_get_priv(dev);
+	struct dm_regulator_uclass_platdata *plat;
 	uint duty_cycle;
 	int ret;
 
-	debug("%s: Enable '%s', regulator '%s'\n", __func__, dev->name,
-	      priv->reg->name);
+	plat = dev_get_uclass_platdata(priv->reg);
+	debug("%s: Enable '%s', regulator '%s'/'%s'\n", __func__, dev->name,
+	      priv->reg->name, plat->name);
 	ret = regulator_set_enable(priv->reg, true);
 	if (ret) {
 		debug("%s: Cannot enable regulator for PWM '%s'\n", __func__,
@@ -59,12 +61,11 @@ static int pwm_backlight_enable(struct udevice *dev)
 static int pwm_backlight_ofdata_to_platdata(struct udevice *dev)
 {
 	struct pwm_backlight_priv *priv = dev_get_priv(dev);
-	struct fdtdec_phandle_args args;
-	const void *blob = gd->fdt_blob;
-	int node = dev_of_offset(dev);
+	struct ofnode_phandle_args args;
 	int index, ret, count, len;
 	const u32 *cell;
 
+	debug("%s: start\n", __func__);
 	ret = uclass_get_device_by_phandle(UCLASS_REGULATOR, dev,
 					   "power-supply", &priv->reg);
 	if (ret) {
@@ -79,14 +80,14 @@ static int pwm_backlight_ofdata_to_platdata(struct udevice *dev)
 		if (ret != -ENOENT)
 			return ret;
 	}
-	ret = fdtdec_parse_phandle_with_args(blob, node, "pwms", "#pwm-cells",
-					     0, 0, &args);
+	ret = dev_read_phandle_with_args(dev, "pwms", "#pwm-cells", 0, 0,
+					 &args);
 	if (ret) {
 		debug("%s: Cannot get PWM phandle: ret=%d\n", __func__, ret);
 		return ret;
 	}
 
-	ret = uclass_get_device_by_of_offset(UCLASS_PWM, args.node, &priv->pwm);
+	ret = uclass_get_device_by_ofnode(UCLASS_PWM, args.node, &priv->pwm);
 	if (ret) {
 		debug("%s: Cannot get PWM: ret=%d\n", __func__, ret);
 		return ret;
@@ -94,8 +95,8 @@ static int pwm_backlight_ofdata_to_platdata(struct udevice *dev)
 	priv->channel = args.args[0];
 	priv->period_ns = args.args[1];
 
-	index = fdtdec_get_int(blob, node, "default-brightness-level", 255);
-	cell = fdt_getprop(blob, node, "brightness-levels", &len);
+	index = dev_read_u32_default(dev, "default-brightness-level", 255);
+	cell = dev_read_prop(dev, "brightness-levels", &len);
 	count = len / sizeof(u32);
 	if (cell && count > index) {
 		priv->default_level = fdt32_to_cpu(cell[index]);
@@ -104,6 +105,7 @@ static int pwm_backlight_ofdata_to_platdata(struct udevice *dev)
 		priv->default_level = index;
 		priv->max_level = 255;
 	}
+	debug("%s: done\n", __func__);
 
 
 	return 0;
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 07/31] video: simple-panel: Add a little more debugging

[Simon Glass]

Add some debugging to show when the backlight is enabled.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
---

Changes in v2: None

 drivers/video/simple_panel.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/video/simple_panel.c b/drivers/video/simple_panel.c
index baa95f6a12..c0ce199c6a 100644
--- a/drivers/video/simple_panel.c
+++ b/drivers/video/simple_panel.c
@@ -25,8 +25,10 @@ static int simple_panel_enable_backlight(struct udevice *dev)
 	struct simple_panel_priv *priv = dev_get_priv(dev);
 	int ret;
 
+	debug("%s: start, backlight = '%s'\n", __func__, priv->backlight->name);
 	dm_gpio_set_value(&priv->enable, 1);
 	ret = backlight_enable(priv->backlight);
+	debug("%s: done, ret = %d\n", __func__, ret);
 	if (ret)
 		return ret;
 
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 08/31] tegra: Fix up include file ordering

[Simon Glass]

Update these two files so include files in the right order.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 arch/arm/mach-tegra/board2.c | 22 ++++++++--------------
 arch/arm/mach-tegra/clock.c  |  4 ++--
 2 files changed, 10 insertions(+), 16 deletions(-)

diff --git a/arch/arm/mach-tegra/board2.c b/arch/arm/mach-tegra/board2.c
index 84f1ee5035..943ee24e59 100644
--- a/arch/arm/mach-tegra/board2.c
+++ b/arch/arm/mach-tegra/board2.c
@@ -9,14 +9,8 @@
 #include <dm.h>
 #include <errno.h>
 #include <ns16550.h>
-#include <linux/compiler.h>
-#include <linux/sizes.h>
+#include <usb.h>
 #include <asm/io.h>
-#include <asm/arch/clock.h>
-#include <asm/arch/funcmux.h>
-#include <asm/arch/pinmux.h>
-#include <asm/arch/pmu.h>
-#include <asm/arch/tegra.h>
 #include <asm/arch-tegra/ap.h>
 #include <asm/arch-tegra/board.h>
 #include <asm/arch-tegra/clk_rst.h>
@@ -25,17 +19,17 @@
 #include <asm/arch-tegra/uart.h>
 #include <asm/arch-tegra/warmboot.h>
 #include <asm/arch-tegra/gpu.h>
+#include <asm/arch-tegra/usb.h>
+#include <asm/arch-tegra/xusb-padctl.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/funcmux.h>
+#include <asm/arch/pinmux.h>
+#include <asm/arch/pmu.h>
+#include <asm/arch/tegra.h>
 #ifdef CONFIG_TEGRA_CLOCK_SCALING
 #include <asm/arch/emc.h>
 #endif
-#include <asm/arch-tegra/usb.h>
-#ifdef CONFIG_USB_EHCI_TEGRA
-#include <usb.h>
-#endif
-#include <asm/arch-tegra/xusb-padctl.h>
 #include <power/as3722.h>
-#include <i2c.h>
-#include <spi.h>
 #include "emc.h"
 
 DECLARE_GLOBAL_DATA_PTR;
diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c
index 3bb72331a4..f547942022 100644
--- a/arch/arm/mach-tegra/clock.c
+++ b/arch/arm/mach-tegra/clock.c
@@ -7,6 +7,8 @@
 /* Tegra SoC common clock control functions */
 
 #include <common.h>
+#include <div64.h>
+#include <dm.h>
 #include <errno.h>
 #include <asm/io.h>
 #include <asm/arch/clock.h>
@@ -15,8 +17,6 @@
 #include <asm/arch-tegra/clk_rst.h>
 #include <asm/arch-tegra/pmc.h>
 #include <asm/arch-tegra/timer.h>
-#include <div64.h>
-#include <fdtdec.h>
 
 /*
  * This is our record of the current clock rate of each clock. We don't
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 09/31] tegra: spl: Enable debug UART

[Simon Glass]

Enable the debug UART in SPL to allow early serial output even if the
standard UART does not work (e.g. due to driver model problem).

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 arch/arm/mach-tegra/spl.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/mach-tegra/spl.c b/arch/arm/mach-tegra/spl.c
index 41c88cb2b4..189b3da026 100644
--- a/arch/arm/mach-tegra/spl.c
+++ b/arch/arm/mach-tegra/spl.c
@@ -7,6 +7,7 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 #include <common.h>
+#include <debug_uart.h>
 #include <spl.h>
 
 #include <asm/io.h>
@@ -32,6 +33,9 @@ void spl_board_init(void)
 	gpio_early_init_uart();
 
 	clock_early_init();
+#ifdef CONFIG_DEBUG_UART
+	debug_uart_init();
+#endif
 	preloader_console_init();
 }
 
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 10/31] tegra: nyan: Add a PMC syscon driver

[Simon Glass]

The PMC can be modelled as a syscon peripheral. Add a driver for this
so that it can be accessed by drivers when needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 arch/arm/include/asm/arch-tegra/tegra.h |  5 +++++
 arch/arm/mach-tegra/tegra124/Makefile   |  1 +
 arch/arm/mach-tegra/tegra124/pmc.c      | 19 +++++++++++++++++++
 configs/nyan-big_defconfig              |  2 ++
 4 files changed, 27 insertions(+)
 create mode 100644 arch/arm/mach-tegra/tegra124/pmc.c

diff --git a/arch/arm/include/asm/arch-tegra/tegra.h b/arch/arm/include/asm/arch-tegra/tegra.h
index 3add1b3c09..3b9711d28e 100644
--- a/arch/arm/include/asm/arch-tegra/tegra.h
+++ b/arch/arm/include/asm/arch-tegra/tegra.h
@@ -97,6 +97,11 @@ enum {
 	TEGRA_SOC_UNKNOWN	= -1,
 };
 
+/* Tegra system controller (SYSCON) devices */
+enum {
+	TEGRA_SYSCON_PMC,
+};
+
 #else  /* __ASSEMBLY__ */
 #define PRM_RSTCTRL		NV_PA_PMC_BASE
 #endif
diff --git a/arch/arm/mach-tegra/tegra124/Makefile b/arch/arm/mach-tegra/tegra124/Makefile
index c00de6151e..d275dafdc4 100644
--- a/arch/arm/mach-tegra/tegra124/Makefile
+++ b/arch/arm/mach-tegra/tegra124/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_SPL_BUILD) += cpu.o
 obj-y	+= clock.o
 obj-y	+= funcmux.o
 obj-y	+= pinmux.o
+obj-y	+= pmc.o
 obj-y	+= xusb-padctl.o
 obj-y	+= ../xusb-padctl-common.o
 
diff --git a/arch/arm/mach-tegra/tegra124/pmc.c b/arch/arm/mach-tegra/tegra124/pmc.c
new file mode 100644
index 0000000000..be82acf11e
--- /dev/null
+++ b/arch/arm/mach-tegra/tegra124/pmc.c
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2017 Google, Inc
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <syscon.h>
+
+static const struct udevice_id tegra124_syscon_ids[] = {
+	{ .compatible = "nvidia,tegra124-pmc", .data = TEGRA_SYSCON_PMC },
+};
+
+U_BOOT_DRIVER(syscon_tegra124) = {
+	.name = "tegra124_syscon",
+	.id = UCLASS_SYSCON,
+	.of_match = tegra124_syscon_ids,
+};
diff --git a/configs/nyan-big_defconfig b/configs/nyan-big_defconfig
index 827df8af49..7723f7ebfb 100644
--- a/configs/nyan-big_defconfig
+++ b/configs/nyan-big_defconfig
@@ -37,6 +37,8 @@ CONFIG_CMD_EXT4_WRITE=y
 # CONFIG_SPL_ISO_PARTITION is not set
 # CONFIG_SPL_EFI_PARTITION is not set
 CONFIG_SPL_DM=y
+CONFIG_REGMAP=y
+CONFIG_SYSCON=y
 CONFIG_DFU_MMC=y
 CONFIG_DFU_RAM=y
 CONFIG_DFU_SF=y
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 11/31] dm: tegra: Convert USB setup to livetree

[Simon Glass]

Adjust this code to support a live device tree. This should be implemented
as a PHY driver but that is left as an exercise for the maintainer.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 arch/arm/include/asm/arch-tegra/xusb-padctl.h |  2 +-
 arch/arm/mach-tegra/board2.c                  |  2 +-
 arch/arm/mach-tegra/tegra124/xusb-padctl.c    | 36 +++++++++---
 arch/arm/mach-tegra/tegra210/xusb-padctl.c    | 40 +++++++++----
 arch/arm/mach-tegra/xusb-padctl-common.c      | 84 ++++++++++++++-------------
 arch/arm/mach-tegra/xusb-padctl-common.h      | 11 ++--
 arch/arm/mach-tegra/xusb-padctl-dummy.c       |  2 +-
 7 files changed, 112 insertions(+), 65 deletions(-)

diff --git a/arch/arm/include/asm/arch-tegra/xusb-padctl.h b/arch/arm/include/asm/arch-tegra/xusb-padctl.h
index b4b4c8ba4d..deccdf455d 100644
--- a/arch/arm/include/asm/arch-tegra/xusb-padctl.h
+++ b/arch/arm/include/asm/arch-tegra/xusb-padctl.h
@@ -15,7 +15,7 @@ struct tegra_xusb_phy;
  */
 struct tegra_xusb_phy *tegra_xusb_phy_get(unsigned int type);
 
-void tegra_xusb_padctl_init(const void *fdt);
+void tegra_xusb_padctl_init(void);
 int tegra_xusb_phy_prepare(struct tegra_xusb_phy *phy);
 int tegra_xusb_phy_enable(struct tegra_xusb_phy *phy);
 int tegra_xusb_phy_disable(struct tegra_xusb_phy *phy);
diff --git a/arch/arm/mach-tegra/board2.c b/arch/arm/mach-tegra/board2.c
index 943ee24e59..5aedd3ef9d 100644
--- a/arch/arm/mach-tegra/board2.c
+++ b/arch/arm/mach-tegra/board2.c
@@ -164,7 +164,7 @@ int board_init(void)
 	pin_mux_nand();
 #endif
 
-	tegra_xusb_padctl_init(gd->fdt_blob);
+	tegra_xusb_padctl_init();
 
 #ifdef CONFIG_TEGRA_LP0
 	/* save Sdram params to PMC 2, 4, and 24 for WB0 */
diff --git a/arch/arm/mach-tegra/tegra124/xusb-padctl.c b/arch/arm/mach-tegra/tegra124/xusb-padctl.c
index 76af924b94..d326a6ae57 100644
--- a/arch/arm/mach-tegra/tegra124/xusb-padctl.c
+++ b/arch/arm/mach-tegra/tegra124/xusb-padctl.c
@@ -8,6 +8,8 @@
 
 #include <common.h>
 #include <errno.h>
+#include <dm/of_access.h>
+#include <dm/ofnode.h>
 
 #include "../xusb-padctl-common.h"
 
@@ -317,13 +319,33 @@ static const struct tegra_xusb_padctl_soc tegra124_socdata = {
 	.num_phys = ARRAY_SIZE(tegra124_phys),
 };
 
-void tegra_xusb_padctl_init(const void *fdt)
+void tegra_xusb_padctl_init(void)
 {
-	int count, nodes[1];
+	ofnode nodes[1];
+	int count = 0;
+	int ret;
+
+	debug("%s: start\n", __func__);
+	if (of_live_active()) {
+		struct device_node *np = of_find_compatible_node(NULL, NULL,
+						"nvidia,tegra124-xusb-padctl");
+
+		debug("np=%p\n", np);
+		if (np) {
+			nodes[0] = np_to_ofnode(np);
+			count = 1;
+		}
+	} else {
+		int node_offsets[1];
+		int i;
+
+		count = fdtdec_find_aliases_for_id(gd->fdt_blob, "padctl",
+				COMPAT_NVIDIA_TEGRA124_XUSB_PADCTL,
+				node_offsets, ARRAY_SIZE(node_offsets));
+		for (i = 0; i < count; i++)
+			nodes[i] = offset_to_ofnode(node_offsets[i]);
+	}
 
-	count = fdtdec_find_aliases_for_id(fdt, "padctl",
-					   COMPAT_NVIDIA_TEGRA124_XUSB_PADCTL,
-					   nodes, ARRAY_SIZE(nodes));
-	if (tegra_xusb_process_nodes(fdt, nodes, count, &tegra124_socdata))
-		return;
+	ret = tegra_xusb_process_nodes(nodes, count, &tegra124_socdata);
+	debug("%s: done, ret=%d\n", __func__, ret);
 }
diff --git a/arch/arm/mach-tegra/tegra210/xusb-padctl.c b/arch/arm/mach-tegra/tegra210/xusb-padctl.c
index 9ec93e7c4c..fde76dda01 100644
--- a/arch/arm/mach-tegra/tegra210/xusb-padctl.c
+++ b/arch/arm/mach-tegra/tegra210/xusb-padctl.c
@@ -8,6 +8,8 @@
 
 #include <common.h>
 #include <errno.h>
+#include <dm/of_access.h>
+#include <dm/ofnode.h>
 
 #include "../xusb-padctl-common.h"
 
@@ -421,17 +423,33 @@ static const struct tegra_xusb_padctl_soc tegra210_socdata = {
 	.num_phys = ARRAY_SIZE(tegra210_phys),
 };
 
-void tegra_xusb_padctl_init(const void *fdt)
+void tegra_xusb_padctl_init(void)
 {
-	int count, nodes[1];
-
-	debug("> %s(fdt=%p)\n", __func__, fdt);
-
-	count = fdtdec_find_aliases_for_id(fdt, "padctl",
-					   COMPAT_NVIDIA_TEGRA210_XUSB_PADCTL,
-					   nodes, ARRAY_SIZE(nodes));
-	if (tegra_xusb_process_nodes(fdt, nodes, count, &tegra210_socdata))
-		return;
+	ofnode nodes[1];
+	int count = 0;
+	int ret;
+
+	debug("%s: start\n", __func__);
+	if (of_live_active()) {
+		struct device_node *np = of_find_compatible_node(NULL, NULL,
+						"nvidia,tegra210-xusb-padctl");
+
+		debug("np=%p\n", np);
+		if (np) {
+			nodes[0] = np_to_ofnode(np);
+			count = 1;
+		}
+	} else {
+		int node_offsets[1];
+		int i;
+
+		count = fdtdec_find_aliases_for_id(gd->fdt_blob, "padctl",
+				COMPAT_NVIDIA_TEGRA210_XUSB_PADCTL,
+				node_offsets, ARRAY_SIZE(node_offsets));
+		for (i = 0; i < count; i++)
+			nodes[i] = offset_to_ofnode(node_offsets[i]);
+	}
 
-	debug("< %s()\n", __func__);
+	ret = tegra_xusb_process_nodes(nodes, count, &tegra210_socdata);
+	debug("%s: done, ret=%d\n", __func__, ret);
 }
diff --git a/arch/arm/mach-tegra/xusb-padctl-common.c b/arch/arm/mach-tegra/xusb-padctl-common.c
index 43f5bb7da6..4114273b6d 100644
--- a/arch/arm/mach-tegra/xusb-padctl-common.c
+++ b/arch/arm/mach-tegra/xusb-padctl-common.c
@@ -75,39 +75,35 @@ tegra_xusb_padctl_find_lane(struct tegra_xusb_padctl *padctl, const char *name)
 static int
 tegra_xusb_padctl_group_parse_dt(struct tegra_xusb_padctl *padctl,
 				 struct tegra_xusb_padctl_group *group,
-				 const void *fdt, int node)
+				 ofnode node)
 {
 	unsigned int i;
-	int len;
-
-	group->name = fdt_get_name(fdt, node, &len);
-
-	len = fdt_stringlist_count(fdt, node, "nvidia,lanes");
-	if (len < 0) {
-		error("failed to parse \"nvidia,lanes\" property");
-		return -EINVAL;
-	}
-
-	group->num_pins = len;
-
-	for (i = 0; i < group->num_pins; i++) {
-		group->pins[i] = fdt_stringlist_get(fdt, node, "nvidia,lanes",
-						    i, NULL);
-		if (!group->pins[i]) {
-			error("failed to read string from \"nvidia,lanes\" property");
-			return -EINVAL;
+	int ret;
+
+	group->name = ofnode_get_name(node);
+
+	for (i = 0; ; i++) {
+		ret = ofnode_read_string_index(node, "nvidia,lanes", i,
+					       &group->pins[i]);
+		if (ret) {
+			if (!i) {
+				error("failed to read string from \"nvidia,lanes\" property");
+				return -EINVAL;
+			}
+			break;
 		}
 	}
 
-	group->num_pins = len;
+	group->num_pins = i;
 
-	group->func = fdt_stringlist_get(fdt, node, "nvidia,function", 0, NULL);
-	if (!group->func) {
+	ret = ofnode_read_string_index(node, "nvidia,function", 0,
+				       &group->func);
+	if (ret) {
 		error("failed to parse \"nvidia,func\" property");
 		return -EINVAL;
 	}
 
-	group->iddq = fdtdec_get_int(fdt, node, "nvidia,iddq", -1);
+	group->iddq = ofnode_read_u32_default(node, "nvidia,iddq", -1);
 
 	return 0;
 }
@@ -217,20 +213,21 @@ tegra_xusb_padctl_config_apply(struct tegra_xusb_padctl *padctl,
 static int
 tegra_xusb_padctl_config_parse_dt(struct tegra_xusb_padctl *padctl,
 				  struct tegra_xusb_padctl_config *config,
-				  const void *fdt, int node)
+				  ofnode node)
 {
-	int subnode;
+	ofnode subnode;
 
-	config->name = fdt_get_name(fdt, node, NULL);
+	config->name = ofnode_get_name(node);
 
-	fdt_for_each_subnode(subnode, fdt, node) {
+	for (subnode = ofnode_first_subnode(node);
+	     ofnode_valid(node);
+	     subnode = ofnode_next_subnode(subnode)) {
 		struct tegra_xusb_padctl_group *group;
 		int err;
 
 		group = &config->groups[config->num_groups];
 
-		err = tegra_xusb_padctl_group_parse_dt(padctl, group, fdt,
-						       subnode);
+		err = tegra_xusb_padctl_group_parse_dt(padctl, group, subnode);
 		if (err < 0) {
 			error("failed to parse group %s", group->name);
 			return err;
@@ -243,20 +240,25 @@ tegra_xusb_padctl_config_parse_dt(struct tegra_xusb_padctl *padctl,
 }
 
 static int tegra_xusb_padctl_parse_dt(struct tegra_xusb_padctl *padctl,
-				      const void *fdt, int node)
+				      ofnode node)
 {
-	int subnode, err;
+	ofnode subnode;
+	int err;
 
-	err = fdt_get_resource(fdt, node, "reg", 0, &padctl->regs);
-	if (err < 0) {
+	debug("%s: start %s\n", __func__, node.np->name);
+	padctl->regs = ofnode_get_addr(node);
+	if (padctl->regs == FDT_ADDR_T_NONE) {
 		error("registers not found");
 		return err;
 	}
 
-	fdt_for_each_subnode(subnode, fdt, node) {
+	for (subnode = ofnode_first_subnode(node);
+	     ofnode_valid(subnode);
+	     subnode = ofnode_next_subnode(subnode)) {
 		struct tegra_xusb_padctl_config *config = &padctl->config;
 
-		err = tegra_xusb_padctl_config_parse_dt(padctl, config, fdt,
+		debug("%s: subnode=%s\n", __func__, subnode.np->name);
+		err = tegra_xusb_padctl_config_parse_dt(padctl, config,
 							subnode);
 		if (err < 0) {
 			error("failed to parse entry %s: %d",
@@ -264,25 +266,28 @@ static int tegra_xusb_padctl_parse_dt(struct tegra_xusb_padctl *padctl,
 			continue;
 		}
 	}
+	debug("%s: done\n", __func__);
 
 	return 0;
 }
 
 struct tegra_xusb_padctl padctl;
 
-int tegra_xusb_process_nodes(const void *fdt, int nodes[], unsigned int count,
-	const struct tegra_xusb_padctl_soc *socdata)
+int tegra_xusb_process_nodes(ofnode nodes[], unsigned int count,
+			     const struct tegra_xusb_padctl_soc *socdata)
 {
 	unsigned int i;
 	int err;
 
+	debug("%s: count=%d\n", __func__, count);
 	for (i = 0; i < count; i++) {
-		if (!fdtdec_get_is_enabled(fdt, nodes[i]))
+		debug("%s: i=%d, node=%p\n", __func__, i, nodes[i].np);
+		if (!ofnode_is_available(nodes[i]))
 			continue;
 
 		padctl.socdata = socdata;
 
-		err = tegra_xusb_padctl_parse_dt(&padctl, fdt, nodes[i]);
+		err = tegra_xusb_padctl_parse_dt(&padctl, nodes[i]);
 		if (err < 0) {
 			error("failed to parse DT: %d", err);
 			continue;
@@ -300,6 +305,7 @@ int tegra_xusb_process_nodes(const void *fdt, int nodes[], unsigned int count,
 		/* only a single instance is supported */
 		break;
 	}
+	debug("%s: done\n", __func__);
 
 	return 0;
 }
diff --git a/arch/arm/mach-tegra/xusb-padctl-common.h b/arch/arm/mach-tegra/xusb-padctl-common.h
index f44790a650..afb62a9adc 100644
--- a/arch/arm/mach-tegra/xusb-padctl-common.h
+++ b/arch/arm/mach-tegra/xusb-padctl-common.h
@@ -9,6 +9,7 @@
 
 #include <common.h>
 #include <fdtdec.h>
+#include <dm/ofnode.h>
 
 #include <asm/io.h>
 #include <asm/arch-tegra/xusb-padctl.h>
@@ -77,7 +78,7 @@ struct tegra_xusb_padctl_config {
 struct tegra_xusb_padctl {
 	const struct tegra_xusb_padctl_soc *socdata;
 	struct tegra_xusb_padctl_config config;
-	struct fdt_resource regs;
+	ulong regs;
 	unsigned int enable;
 
 };
@@ -86,16 +87,16 @@ extern struct tegra_xusb_padctl padctl;
 static inline u32 padctl_readl(struct tegra_xusb_padctl *padctl,
 			       unsigned long offset)
 {
-	return readl(padctl->regs.start + offset);
+	return readl(padctl->regs + offset);
 }
 
 static inline void padctl_writel(struct tegra_xusb_padctl *padctl,
 				 u32 value, unsigned long offset)
 {
-	writel(value, padctl->regs.start + offset);
+	writel(value, padctl->regs + offset);
 }
 
-int tegra_xusb_process_nodes(const void *fdt, int nodes[], unsigned int count,
-	const struct tegra_xusb_padctl_soc *socdata);
+int tegra_xusb_process_nodes(ofnode nodes[], unsigned int count,
+			     const struct tegra_xusb_padctl_soc *socdata);
 
 #endif
diff --git a/arch/arm/mach-tegra/xusb-padctl-dummy.c b/arch/arm/mach-tegra/xusb-padctl-dummy.c
index 65f8d2ea96..856d712512 100644
--- a/arch/arm/mach-tegra/xusb-padctl-dummy.c
+++ b/arch/arm/mach-tegra/xusb-padctl-dummy.c
@@ -34,6 +34,6 @@ int __weak tegra_xusb_phy_unprepare(struct tegra_xusb_phy *phy)
 	return -ENOSYS;
 }
 
-void __weak tegra_xusb_padctl_init(const void *fdt)
+void __weak tegra_xusb_padctl_init(void)
 {
 }
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 12/31] dm: tegra: Convert clock_decode_periph_id() to support livetree

[Simon Glass]

Adjust this to take a device as a parameter instead of a node.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 arch/arm/include/asm/arch-tegra/clock.h | 2 +-
 arch/arm/mach-tegra/clock.c             | 5 ++---
 drivers/spi/tegra114_spi.c              | 2 +-
 drivers/spi/tegra20_sflash.c            | 2 +-
 drivers/spi/tegra20_slink.c             | 2 +-
 drivers/spi/tegra210_qspi.c             | 2 +-
 drivers/usb/host/ehci-tegra.c           | 2 +-
 7 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/arch/arm/include/asm/arch-tegra/clock.h b/arch/arm/include/asm/arch-tegra/clock.h
index 388afcb723..301de4a899 100644
--- a/arch/arm/include/asm/arch-tegra/clock.h
+++ b/arch/arm/include/asm/arch-tegra/clock.h
@@ -266,7 +266,7 @@ void clock_ll_start_uart(enum periph_id periph_id);
  * @param node		Node to look at
  * @return peripheral ID, or PERIPH_ID_NONE if none
  */
-enum periph_id clock_decode_periph_id(const void *blob, int node);
+int clock_decode_periph_id(struct udevice *dev);
 
 /**
  * Checks if the oscillator bypass is enabled (XOBP bit)
diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c
index f547942022..090dba629c 100644
--- a/arch/arm/mach-tegra/clock.c
+++ b/arch/arm/mach-tegra/clock.c
@@ -652,14 +652,13 @@ void clock_ll_start_uart(enum periph_id periph_id)
 }
 
 #if CONFIG_IS_ENABLED(OF_CONTROL)
-int clock_decode_periph_id(const void *blob, int node)
+int clock_decode_periph_id(struct udevice *dev)
 {
 	enum periph_id id;
 	u32 cell[2];
 	int err;
 
-	err = fdtdec_get_int_array(blob, node, "clocks", cell,
-				   ARRAY_SIZE(cell));
+	err = dev_read_u32_array(dev, "clocks", cell, ARRAY_SIZE(cell));
 	if (err)
 		return -1;
 	id = clk_id_to_periph_id(cell[1]);
diff --git a/drivers/spi/tegra114_spi.c b/drivers/spi/tegra114_spi.c
index 802117eb49..86b1019585 100644
--- a/drivers/spi/tegra114_spi.c
+++ b/drivers/spi/tegra114_spi.c
@@ -104,7 +104,7 @@ static int tegra114_spi_ofdata_to_platdata(struct udevice *bus)
 	int node = dev_of_offset(bus);
 
 	plat->base = devfdt_get_addr(bus);
-	plat->periph_id = clock_decode_periph_id(blob, node);
+	plat->periph_id = clock_decode_periph_id(bus);
 
 	if (plat->periph_id == PERIPH_ID_NONE) {
 		debug("%s: could not decode periph id %d\n", __func__,
diff --git a/drivers/spi/tegra20_sflash.c b/drivers/spi/tegra20_sflash.c
index 299e1b44fa..e70210d7ab 100644
--- a/drivers/spi/tegra20_sflash.c
+++ b/drivers/spi/tegra20_sflash.c
@@ -91,7 +91,7 @@ static int tegra20_sflash_ofdata_to_platdata(struct udevice *bus)
 	int node = dev_of_offset(bus);
 
 	plat->base = devfdt_get_addr(bus);
-	plat->periph_id = clock_decode_periph_id(blob, node);
+	plat->periph_id = clock_decode_periph_id(bus);
 
 	if (plat->periph_id == PERIPH_ID_NONE) {
 		debug("%s: could not decode periph id %d\n", __func__,
diff --git a/drivers/spi/tegra20_slink.c b/drivers/spi/tegra20_slink.c
index 4cbde7b22f..f242574760 100644
--- a/drivers/spi/tegra20_slink.c
+++ b/drivers/spi/tegra20_slink.c
@@ -97,7 +97,7 @@ static int tegra30_spi_ofdata_to_platdata(struct udevice *bus)
 	int node = dev_of_offset(bus);
 
 	plat->base = devfdt_get_addr(bus);
-	plat->periph_id = clock_decode_periph_id(blob, node);
+	plat->periph_id = clock_decode_periph_id(bus);
 
 	if (plat->periph_id == PERIPH_ID_NONE) {
 		debug("%s: could not decode periph id %d\n", __func__,
diff --git a/drivers/spi/tegra210_qspi.c b/drivers/spi/tegra210_qspi.c
index 6d0b5da261..2a35a583f5 100644
--- a/drivers/spi/tegra210_qspi.c
+++ b/drivers/spi/tegra210_qspi.c
@@ -100,7 +100,7 @@ static int tegra210_qspi_ofdata_to_platdata(struct udevice *bus)
 	int node = dev_of_offset(bus);
 
 	plat->base = devfdt_get_addr(bus);
-	plat->periph_id = clock_decode_periph_id(blob, node);
+	plat->periph_id = clock_decode_periph_id(bus);
 
 	if (plat->periph_id == PERIPH_ID_NONE) {
 		debug("%s: could not decode periph id %d\n", __func__,
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index 7dc37f045d..873bf8ecfd 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -723,7 +723,7 @@ static int fdt_decode_usb(struct udevice *dev, struct fdt_usb *config)
 	config->enabled = fdtdec_get_is_enabled(blob, node);
 	config->has_legacy_mode = fdtdec_get_bool(blob, node,
 						  "nvidia,has-legacy-mode");
-	config->periph_id = clock_decode_periph_id(blob, node);
+	config->periph_id = clock_decode_periph_id(dev);
 	if (config->periph_id == PERIPH_ID_NONE) {
 		debug("%s: Missing/invalid peripheral ID\n", __func__);
 		return -EINVAL;
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 13/31] dm: video: tegra124: Convert to livetree

[Simon Glass]

Update these drives to support a live device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
---

Changes in v2: None

 drivers/video/tegra124/display.c |  8 +++-----
 drivers/video/tegra124/dp.c      |  3 +--
 drivers/video/tegra124/sor.c     | 25 +++++++------------------
 3 files changed, 11 insertions(+), 25 deletions(-)

diff --git a/drivers/video/tegra124/display.c b/drivers/video/tegra124/display.c
index 47752b27f1..4164fa1bd9 100644
--- a/drivers/video/tegra124/display.c
+++ b/drivers/video/tegra124/display.c
@@ -12,7 +12,6 @@
 #include <errno.h>
 #include <display.h>
 #include <edid.h>
-#include <fdtdec.h>
 #include <lcd.h>
 #include <video.h>
 #include <asm/gpio.h>
@@ -334,7 +333,6 @@ static int display_init(struct udevice *dev, void *lcdbase,
 {
 	struct display_plat *disp_uc_plat;
 	struct dc_ctlr *dc_ctlr;
-	const void *blob = gd->fdt_blob;
 	struct udevice *dp_dev;
 	const int href_to_sync = 1, vref_to_sync = 1;
 	int panel_bpp = 18;	/* default 18 bits per pixel */
@@ -363,9 +361,8 @@ static int display_init(struct udevice *dev, void *lcdbase,
 		return ret;
 	}
 
-	dc_ctlr = (struct dc_ctlr *)fdtdec_get_addr(blob, dev_of_offset(dev),
-						    "reg");
-	if (fdtdec_decode_display_timing(blob, dev_of_offset(dev), 0, timing)) {
+	dc_ctlr = (struct dc_ctlr *)dev_read_addr(dev);
+	if (ofnode_decode_display_timing(dev_ofnode(dev), 0, timing)) {
 		debug("%s: Failed to decode display timing\n", __func__);
 		return -EINVAL;
 	}
@@ -416,6 +413,7 @@ static int display_init(struct udevice *dev, void *lcdbase,
 		debug("dc: failed to update window\n");
 		return ret;
 	}
+	debug("%s: ready\n", __func__);
 
 	return 0;
 }
diff --git a/drivers/video/tegra124/dp.c b/drivers/video/tegra124/dp.c
index c38b3e5335..95d743d0f4 100644
--- a/drivers/video/tegra124/dp.c
+++ b/drivers/video/tegra124/dp.c
@@ -10,7 +10,6 @@
 #include <dm.h>
 #include <div64.h>
 #include <errno.h>
-#include <fdtdec.h>
 #include <video_bridge.h>
 #include <asm/io.h>
 #include <asm/arch-tegra/dc.h>
@@ -1572,7 +1571,7 @@ static int tegra_dp_ofdata_to_platdata(struct udevice *dev)
 {
 	struct tegra_dp_plat *plat = dev_get_platdata(dev);
 
-	plat->base = devfdt_get_addr(dev);
+	plat->base = dev_read_addr(dev);
 
 	return 0;
 }
diff --git a/drivers/video/tegra124/sor.c b/drivers/video/tegra124/sor.c
index 5e4140ff53..1f5e572bda 100644
--- a/drivers/video/tegra124/sor.c
+++ b/drivers/video/tegra124/sor.c
@@ -7,9 +7,9 @@
 #include <common.h>
 #include <dm.h>
 #include <errno.h>
-#include <fdtdec.h>
 #include <malloc.h>
 #include <panel.h>
+#include <syscon.h>
 #include <video_bridge.h>
 #include <asm/io.h>
 #include <asm/arch/clock.h>
@@ -750,15 +750,12 @@ int tegra_dc_sor_attach(struct udevice *dc_dev, struct udevice *dev,
 			const struct display_timing *timing)
 {
 	struct tegra_dc_sor_data *sor = dev_get_priv(dev);
-	const void *blob = gd->fdt_blob;
 	struct dc_ctlr *disp_ctrl;
 	u32 reg_val;
-	int node;
 
 	/* Use the first display controller */
 	debug("%s\n", __func__);
-	node = dev_of_offset(dc_dev);
-	disp_ctrl = (struct dc_ctlr *)fdtdec_get_addr(blob, node, "reg");
+	disp_ctrl = (struct dc_ctlr *)dev_read_addr(dc_dev);
 
 	tegra_dc_sor_enable_dc(disp_ctrl);
 	tegra_dc_sor_config_panel(sor, 0, link_cfg, timing);
@@ -965,16 +962,13 @@ int tegra_dc_sor_detach(struct udevice *dc_dev, struct udevice *dev)
 {
 	struct tegra_dc_sor_data *sor = dev_get_priv(dev);
 	int dc_reg_ctx[DC_REG_SAVE_SPACE];
-	const void *blob = gd->fdt_blob;
 	struct dc_ctlr *disp_ctrl;
 	unsigned long dc_int_mask;
-	int node;
 	int ret;
 
 	debug("%s\n", __func__);
 	/* Use the first display controller */
-	node = dev_of_offset(dc_dev);
-	disp_ctrl = (struct dc_ctlr *)fdtdec_get_addr(blob, node, "reg");
+	disp_ctrl = (struct dc_ctlr *)dev_read_addr(dev);
 
 	/* Sleep mode */
 	tegra_sor_writel(sor, SUPER_STATE1, SUPER_STATE1_ASY_HEAD_OP_SLEEP |
@@ -1041,18 +1035,13 @@ static int tegra_sor_set_backlight(struct udevice *dev, int percent)
 static int tegra_sor_ofdata_to_platdata(struct udevice *dev)
 {
 	struct tegra_dc_sor_data *priv = dev_get_priv(dev);
-	const void *blob = gd->fdt_blob;
-	int node;
 	int ret;
 
-	priv->base = (void *)fdtdec_get_addr(blob, dev_of_offset(dev), "reg");
+	priv->base = (void *)dev_read_addr(dev);
 
-	node = fdtdec_next_compatible(blob, 0, COMPAT_NVIDIA_TEGRA124_PMC);
-	if (node < 0) {
-		debug("%s: Cannot find PMC\n", __func__);
-		return -ENOENT;
-	}
-	priv->pmc_base = (void *)fdtdec_get_addr(blob, node, "reg");
+	priv->pmc_base = (void *)syscon_get_first_range(TEGRA_SYSCON_PMC);
+	if (IS_ERR(priv->pmc_base))
+		return PTR_ERR(priv->pmc_base);
 
 	ret = uclass_get_device_by_phandle(UCLASS_PANEL, dev, "nvidia,panel",
 					   &priv->panel);
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 14/31] tegra: Don't set up the UART clocks again in U-Boot

[Simon Glass]

This UART clocks are already set up in SPL so we don't need to do it again
in U-Boot. This seems to cause a hang on Nyan.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 arch/arm/mach-tegra/board.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-tegra/board.c b/arch/arm/mach-tegra/board.c
index b3a041b539..c478420655 100644
--- a/arch/arm/mach-tegra/board.c
+++ b/arch/arm/mach-tegra/board.c
@@ -187,7 +187,9 @@ static void setup_uarts(int uart_ids)
 			enum periph_id id = id_for_uart[i];
 
 			funcmux_select(id, uart_configs[i]);
+#ifdef CONFIG_SPL_BUILD
 			clock_ll_start_uart(id);
+#endif
 		}
 	}
 }
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 15/31] tegra: dts: Move stdout-path to /chosen

[Simon Glass]

This property should be in the /chosen node, not /aliases.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 arch/arm/dts/tegra124-nyan-big.dts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm/dts/tegra124-nyan-big.dts b/arch/arm/dts/tegra124-nyan-big.dts
index 62f89d0f1a..f1c97052a8 100644
--- a/arch/arm/dts/tegra124-nyan-big.dts
+++ b/arch/arm/dts/tegra124-nyan-big.dts
@@ -8,7 +8,6 @@
 
 	aliases {
 		console = &uarta;
-		stdout-path = &uarta;
 		i2c0 = "/i2c at 7000d000";
 		i2c1 = "/i2c at 7000c000";
 		i2c2 = "/i2c at 7000c400";
@@ -26,6 +25,10 @@
 		usb2 = "/usb at 7d004000";
 	};
 
+	chosen {
+		stdout-path = &uarta;
+	};
+
 	host1x at 50000000 {
 		dc at 54200000 {
 			display-timings {
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 16/31] dm: tegra: gpio: Convert to support livetree

[Simon Glass]

Update the GPIO driver to support a live device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 drivers/gpio/tegra_gpio.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/gpio/tegra_gpio.c b/drivers/gpio/tegra_gpio.c
index 687cd74fee..4965583158 100644
--- a/drivers/gpio/tegra_gpio.c
+++ b/drivers/gpio/tegra_gpio.c
@@ -337,11 +337,13 @@ static int gpio_tegra_bind(struct udevice *parent)
 	 * This driver does not make use of interrupts, other than to figure
 	 * out the number of GPIO banks
 	 */
-	if (!fdt_getprop(gd->fdt_blob, dev_of_offset(parent), "interrupts",
-			 &len))
-		return -EINVAL;
+	len = dev_read_size(parent, "interrupts");
+	if (len < 0)
+		return len;
 	bank_count = len / 3 / sizeof(u32);
-	ctlr = (struct gpio_ctlr *)devfdt_get_addr(parent);
+	ctlr = (struct gpio_ctlr *)dev_read_addr(parent);
+	if ((ulong)ctlr == FDT_ADDR_T_NONE)
+		return -EINVAL;
 	}
 #endif
 	for (bank = 0; bank < bank_count; bank++) {
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 17/31] dm: tegra: usb: Convert to livetree

[Simon Glass]

Update the Tegra EHCI driver to support a live device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 drivers/usb/host/ehci-tegra.c | 34 ++++++++++++++--------------------
 1 file changed, 14 insertions(+), 20 deletions(-)

diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index 873bf8ecfd..1c72330b0c 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -17,7 +17,6 @@
 #include <usb.h>
 #include <usb/ulpi.h>
 #include <libfdt.h>
-#include <fdtdec.h>
 
 #include "ehci.h"
 
@@ -695,12 +694,11 @@ static void config_clock(const u32 timing[])
 
 static int fdt_decode_usb(struct udevice *dev, struct fdt_usb *config)
 {
-	const void *blob = gd->fdt_blob;
-	int node = dev_of_offset(dev);
 	const char *phy, *mode;
 
-	config->reg = (struct usb_ctlr *)devfdt_get_addr(dev);
-	mode = fdt_getprop(blob, node, "dr_mode", NULL);
+	config->reg = (struct usb_ctlr *)dev_read_addr(dev);
+	debug("reg=%p\n", config->reg);
+	mode = dev_read_string(dev, "dr_mode");
 	if (mode) {
 		if (0 == strcmp(mode, "host"))
 			config->dr_mode = DR_MODE_HOST;
@@ -717,28 +715,24 @@ static int fdt_decode_usb(struct udevice *dev, struct fdt_usb *config)
 		config->dr_mode = DR_MODE_HOST;
 	}
 
-	phy = fdt_getprop(blob, node, "phy_type", NULL);
+	phy = dev_read_string(dev, "phy_type");
 	config->utmi = phy && 0 == strcmp("utmi", phy);
 	config->ulpi = phy && 0 == strcmp("ulpi", phy);
-	config->enabled = fdtdec_get_is_enabled(blob, node);
-	config->has_legacy_mode = fdtdec_get_bool(blob, node,
-						  "nvidia,has-legacy-mode");
+	config->has_legacy_mode = dev_read_bool(dev, "nvidia,has-legacy-mode");
 	config->periph_id = clock_decode_periph_id(dev);
 	if (config->periph_id == PERIPH_ID_NONE) {
 		debug("%s: Missing/invalid peripheral ID\n", __func__);
 		return -EINVAL;
 	}
-	gpio_request_by_name_nodev(offset_to_ofnode(node), "nvidia,vbus-gpio",
-				   0, &config->vbus_gpio, GPIOD_IS_OUT);
-	gpio_request_by_name_nodev(offset_to_ofnode(node),
-				   "nvidia,phy-reset-gpio", 0,
-				   &config->phy_reset_gpio, GPIOD_IS_OUT);
-	debug("enabled=%d, legacy_mode=%d, utmi=%d, ulpi=%d, periph_id=%d, "
-		"vbus=%d, phy_reset=%d, dr_mode=%d\n",
-		config->enabled, config->has_legacy_mode, config->utmi,
-		config->ulpi, config->periph_id,
-		gpio_get_number(&config->vbus_gpio),
-		gpio_get_number(&config->phy_reset_gpio), config->dr_mode);
+	gpio_request_by_name(dev, "nvidia,vbus-gpio", 0, &config->vbus_gpio,
+			     GPIOD_IS_OUT);
+	gpio_request_by_name(dev, "nvidia,phy-reset-gpio", 0,
+			     &config->phy_reset_gpio, GPIOD_IS_OUT);
+	debug("legacy_mode=%d, utmi=%d, ulpi=%d, periph_id=%d, vbus=%d, phy_reset=%d, dr_mode=%d, reg=%p\n",
+	      config->has_legacy_mode, config->utmi, config->ulpi,
+	      config->periph_id, gpio_get_number(&config->vbus_gpio),
+	      gpio_get_number(&config->phy_reset_gpio), config->dr_mode,
+	      config->reg);
 
 	return 0;
 }
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 18/31] dm: tegra: spi: Convert to livetree

[Simon Glass]

Update the tegra114 spi driver to support a live device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 drivers/spi/tegra114_spi.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/spi/tegra114_spi.c b/drivers/spi/tegra114_spi.c
index 86b1019585..013bc82380 100644
--- a/drivers/spi/tegra114_spi.c
+++ b/drivers/spi/tegra114_spi.c
@@ -12,7 +12,6 @@
 #include <asm/arch/clock.h>
 #include <asm/arch-tegra/clk_rst.h>
 #include <spi.h>
-#include <fdtdec.h>
 #include "tegra_spi.h"
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -100,10 +99,8 @@ struct tegra114_spi_priv {
 static int tegra114_spi_ofdata_to_platdata(struct udevice *bus)
 {
 	struct tegra_spi_platdata *plat = bus->platdata;
-	const void *blob = gd->fdt_blob;
-	int node = dev_of_offset(bus);
 
-	plat->base = devfdt_get_addr(bus);
+	plat->base = dev_read_addr(bus);
 	plat->periph_id = clock_decode_periph_id(bus);
 
 	if (plat->periph_id == PERIPH_ID_NONE) {
@@ -113,10 +110,10 @@ static int tegra114_spi_ofdata_to_platdata(struct udevice *bus)
 	}
 
 	/* Use 500KHz as a suitable default */
-	plat->frequency = fdtdec_get_int(blob, node, "spi-max-frequency",
-					500000);
-	plat->deactivate_delay_us = fdtdec_get_int(blob, node,
-					"spi-deactivate-delay", 0);
+	plat->frequency = dev_read_u32_default(bus, "spi-max-frequency",
+					       500000);
+	plat->deactivate_delay_us = dev_read_u32_default(bus,
+						"spi-deactivate-delay", 0);
 	debug("%s: base=%#08lx, periph_id=%d, max-frequency=%d, deactivate_delay=%d\n",
 	      __func__, plat->base, plat->periph_id, plat->frequency,
 	      plat->deactivate_delay_us);
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 19/31] dm: tegra: i2c: Convert to livetree

[Simon Glass]

Update the tegra i2c driver to support a live device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 drivers/i2c/tegra_i2c.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/i2c/tegra_i2c.c b/drivers/i2c/tegra_i2c.c
index 055f48153a..4163d798d5 100644
--- a/drivers/i2c/tegra_i2c.c
+++ b/drivers/i2c/tegra_i2c.c
@@ -365,7 +365,11 @@ static int tegra_i2c_probe(struct udevice *dev)
 
 	i2c_bus->id = dev->seq;
 	i2c_bus->type = dev_get_driver_data(dev);
-	i2c_bus->regs = (struct i2c_ctlr *)devfdt_get_addr(dev);
+	i2c_bus->regs = (struct i2c_ctlr *)dev_read_addr(dev);
+	if ((ulong)i2c_bus->regs == FDT_ADDR_T_NONE) {
+		debug("%s: Cannot get regs address\n", __func__);
+		return -EINVAL;
+	}
 
 	ret = reset_get_by_name(dev, "i2c", &i2c_bus->reset_ctl);
 	if (ret) {
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 20/31] dm: tegra: pwm: Convert to livetree

[Simon Glass]

Update the tegra pwm driver to support a live device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 drivers/pwm/tegra_pwm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pwm/tegra_pwm.c b/drivers/pwm/tegra_pwm.c
index d93ac28c31..b8acc1583f 100644
--- a/drivers/pwm/tegra_pwm.c
+++ b/drivers/pwm/tegra_pwm.c
@@ -59,7 +59,7 @@ static int tegra_pwm_ofdata_to_platdata(struct udevice *dev)
 {
 	struct tegra_pwm_priv *priv = dev_get_priv(dev);
 
-	priv->regs = (struct pwm_ctlr *)devfdt_get_addr(dev);
+	priv->regs = (struct pwm_ctlr *)dev_read_addr(dev);
 
 	return 0;
 }
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 21/31] dm: tegra: mmc: Convert to livetree

[Simon Glass]

Update the tegra mmc driver to support a live device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 drivers/mmc/tegra_mmc.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/drivers/mmc/tegra_mmc.c b/drivers/mmc/tegra_mmc.c
index 338e42b528..9f7e7195f1 100644
--- a/drivers/mmc/tegra_mmc.c
+++ b/drivers/mmc/tegra_mmc.c
@@ -11,10 +11,10 @@
 #include <common.h>
 #include <dm.h>
 #include <errno.h>
+#include <mmc.h>
 #include <asm/gpio.h>
 #include <asm/io.h>
 #include <asm/arch-tegra/tegra_mmc.h>
-#include <mmc.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -599,8 +599,7 @@ static int tegra_mmc_probe(struct udevice *dev)
 
 	cfg->name = dev->name;
 
-	bus_width = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
-				   "bus-width", 1);
+	bus_width = dev_read_u32_default(dev, "bus-width", 1);
 
 	cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;
 	cfg->host_caps = 0;
@@ -621,7 +620,7 @@ static int tegra_mmc_probe(struct udevice *dev)
 
 	cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
 
-	priv->reg = (void *)devfdt_get_addr(dev);
+	priv->reg = (void *)dev_read_addr(dev);
 
 	ret = reset_get_by_name(dev, "sdhci", &priv->reset_ctl);
 	if (ret) {
@@ -648,12 +647,10 @@ static int tegra_mmc_probe(struct udevice *dev)
 		return ret;
 
 	/* These GPIOs are optional */
-	gpio_request_by_name(dev, "cd-gpios", 0, &priv->cd_gpio,
-			     GPIOD_IS_IN);
-	gpio_request_by_name(dev, "wp-gpios", 0, &priv->wp_gpio,
-			     GPIOD_IS_IN);
-	gpio_request_by_name(dev, "power-gpios", 0,
-			     &priv->pwr_gpio, GPIOD_IS_OUT);
+	gpio_request_by_name(dev, "cd-gpios", 0, &priv->cd_gpio, GPIOD_IS_IN);
+	gpio_request_by_name(dev, "wp-gpios", 0, &priv->wp_gpio, GPIOD_IS_IN);
+	gpio_request_by_name(dev, "power-gpios", 0, &priv->pwr_gpio,
+			     GPIOD_IS_OUT);
 	if (dm_gpio_is_valid(&priv->pwr_gpio))
 		dm_gpio_set_value(&priv->pwr_gpio, 1);
 
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 22/31] power: Add a regulator driver for the as3722 PMIC

[Simon Glass]

This pmic includes regulators which should have their own driver. Add
a driver to support these.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
---

Changes in v2: None

 drivers/power/regulator/Kconfig            |   9 ++
 drivers/power/regulator/Makefile           |   1 +
 drivers/power/regulator/as3722_regulator.c | 149 +++++++++++++++++++++++++++++
 include/power/as3722.h                     |   8 ++
 4 files changed, 167 insertions(+)
 create mode 100644 drivers/power/regulator/as3722_regulator.c

diff --git a/drivers/power/regulator/Kconfig b/drivers/power/regulator/Kconfig
index ef057e0e2f..2583a19910 100644
--- a/drivers/power/regulator/Kconfig
+++ b/drivers/power/regulator/Kconfig
@@ -34,6 +34,15 @@ config REGULATOR_ACT8846
 	by the PMIC device. This driver is controlled by a device tree node
 	which includes voltage limits.
 
+config REGULATOR_AS3722
+	bool "Enable driver for AS7322 regulator"
+	depends on DM_REGULATOR && PMIC_AS3722
+	help
+	  Enable support for the regulator functions of the AS3722. The
+	  driver implements enable/disable for step-down bucks and LDOs,
+	  but does not yet support change voltages. Currently this must be
+	  done using direct register writes to the PMIC.
+
 config DM_REGULATOR_PFUZE100
 	bool "Enable Driver Model for REGULATOR PFUZE100"
 	depends on DM_REGULATOR && DM_PMIC_PFUZE100
diff --git a/drivers/power/regulator/Makefile b/drivers/power/regulator/Makefile
index 3e01021b76..48d3735d6c 100644
--- a/drivers/power/regulator/Makefile
+++ b/drivers/power/regulator/Makefile
@@ -7,6 +7,7 @@
 
 obj-$(CONFIG_$(SPL_)DM_REGULATOR) += regulator-uclass.o
 obj-$(CONFIG_REGULATOR_ACT8846) += act8846.o
+obj-$(CONFIG_REGULATOR_AS3722)	+= as3722_regulator.o
 obj-$(CONFIG_DM_REGULATOR_MAX77686) += max77686.o
 obj-$(CONFIG_DM_REGULATOR_PFUZE100) += pfuze100.o
 obj-$(CONFIG_REGULATOR_PWM) += pwm_regulator.o
diff --git a/drivers/power/regulator/as3722_regulator.c b/drivers/power/regulator/as3722_regulator.c
new file mode 100644
index 0000000000..0122e1e389
--- /dev/null
+++ b/drivers/power/regulator/as3722_regulator.c
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2017 Google, Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ *
+ * Placeholder regulator driver for as3722.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <power/as3722.h>
+#include <power/pmic.h>
+#include <power/regulator.h>
+
+static int stepdown_get_value(struct udevice *dev)
+{
+	return -ENOSYS;
+}
+
+static int stepdown_set_value(struct udevice *dev, int uvolt)
+{
+	return -ENOSYS;
+}
+
+static int stepdown_set_enable(struct udevice *dev, bool enable)
+{
+	struct udevice *pmic = dev_get_parent(dev);
+	int sd = dev->driver_data;
+	int ret;
+
+	ret = pmic_clrsetbits(pmic, AS3722_SD_CONTROL, 0, 1 << sd);
+	if (ret < 0) {
+		debug("%s: failed to write SD control register: %d", __func__,
+		      ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static bool stepdown_get_enable(struct udevice *dev)
+{
+	struct udevice *pmic = dev_get_parent(dev);
+	int sd = dev->driver_data;
+	int ret;
+
+	ret = pmic_reg_read(pmic, AS3722_SD_CONTROL);
+	if (ret < 0) {
+		debug("%s: failed to read SD control register: %d", __func__,
+		      ret);
+		return false;
+	}
+
+	return ret & (1 << sd) ? true : false;
+}
+
+static int ldo_get_value(struct udevice *dev)
+{
+	return -ENOSYS;
+}
+
+static int ldo_set_value(struct udevice *dev, int uvolt)
+{
+	return -ENOSYS;
+}
+
+static int ldo_set_enable(struct udevice *dev, bool enable)
+{
+	struct udevice *pmic = dev_get_parent(dev);
+	int ldo = dev->driver_data;
+	int ret;
+
+	ret = pmic_clrsetbits(pmic, AS3722_LDO_CONTROL, 0, 1 << ldo);
+	if (ret < 0) {
+		debug("%s: failed to write LDO control register: %d", __func__,
+		      ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static bool ldo_get_enable(struct udevice *dev)
+{
+	struct udevice *pmic = dev_get_parent(dev);
+	int ldo = dev->driver_data;
+	int ret;
+
+	ret = pmic_reg_read(pmic, AS3722_LDO_CONTROL);
+	if (ret < 0) {
+		debug("%s: failed to read SD control register: %d", __func__,
+		      ret);
+		return false;
+	}
+
+	return ret & (1 << ldo) ? true : false;
+}
+
+static int as3722_stepdown_probe(struct udevice *dev)
+{
+	struct dm_regulator_uclass_platdata *uc_pdata;
+
+	uc_pdata = dev_get_uclass_platdata(dev);
+
+	uc_pdata->type = REGULATOR_TYPE_BUCK;
+
+	return 0;
+}
+
+static int as3722_ldo_probe(struct udevice *dev)
+{
+	struct dm_regulator_uclass_platdata *uc_pdata;
+
+	uc_pdata = dev_get_uclass_platdata(dev);
+
+	uc_pdata->type = REGULATOR_TYPE_LDO;
+
+	return 0;
+}
+
+static const struct dm_regulator_ops as3722_stepdown_ops = {
+	.get_value  = stepdown_get_value,
+	.set_value  = stepdown_set_value,
+	.get_enable = stepdown_get_enable,
+	.set_enable = stepdown_set_enable,
+};
+
+static const struct dm_regulator_ops as3722_ldo_ops = {
+	.get_value  = ldo_get_value,
+	.set_value  = ldo_set_value,
+	.get_enable = ldo_get_enable,
+	.set_enable = ldo_set_enable,
+};
+
+U_BOOT_DRIVER(as3722_stepdown) = {
+	.name = "as3722_stepdown",
+	.id = UCLASS_REGULATOR,
+	.ops = &as3722_stepdown_ops,
+	.probe = as3722_stepdown_probe,
+};
+
+U_BOOT_DRIVER(as3722_ldo) = {
+	.name = "as3722_ldo",
+	.id = UCLASS_REGULATOR,
+	.ops = &as3722_ldo_ops,
+	.probe = as3722_ldo_probe,
+};
diff --git a/include/power/as3722.h b/include/power/as3722.h
index 0f22482ff7..14afa0c81a 100644
--- a/include/power/as3722.h
+++ b/include/power/as3722.h
@@ -12,6 +12,14 @@
 #define AS3722_GPIO_OUTPUT_VDDH (1 << 0)
 #define AS3722_GPIO_INVERT (1 << 1)
 
+#define AS3722_DEVICE_ID 0x0c
+#define AS3722_SD_VOLTAGE(n) (0x00 + (n))
+#define AS3722_LDO_VOLTAGE(n) (0x10 + (n))
+#define AS3722_SD_CONTROL 0x4d
+#define AS3722_LDO_CONTROL 0x4e
+#define AS3722_ASIC_ID1 0x90
+#define AS3722_ASIC_ID2 0x91
+
 struct udevice;
 
 int as3722_init(struct udevice **devp);
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 23/31] power: Add a GPIO driver for the as3722 PMIC

[Simon Glass]

This pmic includes GPIOs which should have their own driver. Add
a driver to support these.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
---

Changes in v2: None

 drivers/power/pmic/as3722_gpio.c | 120 +++++++++++++++++++++++++++++++++++++++
 include/power/as3722.h           |   5 ++
 2 files changed, 125 insertions(+)
 create mode 100644 drivers/power/pmic/as3722_gpio.c

diff --git a/drivers/power/pmic/as3722_gpio.c b/drivers/power/pmic/as3722_gpio.c
new file mode 100644
index 0000000000..d0b681ca4a
--- /dev/null
+++ b/drivers/power/pmic/as3722_gpio.c
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2014 NVIDIA Corporation
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <asm/gpio.h>
+#include <power/as3722.h>
+#include <power/pmic.h>
+
+#define NUM_GPIOS	8
+
+int as3722_gpio_configure(struct udevice *pmic, unsigned int gpio,
+			  unsigned long flags)
+{
+	u8 value = 0;
+	int err;
+
+	if (flags & AS3722_GPIO_OUTPUT_VDDH)
+		value |= AS3722_GPIO_CONTROL_MODE_OUTPUT_VDDH;
+
+	if (flags & AS3722_GPIO_INVERT)
+		value |= AS3722_GPIO_CONTROL_INVERT;
+
+	err = pmic_reg_write(pmic, AS3722_GPIO_CONTROL(gpio), value);
+	if (err) {
+		error("failed to configure GPIO#%u: %d", gpio, err);
+		return err;
+	}
+
+	return 0;
+}
+
+static int as3722_gpio_set_value(struct udevice *dev, unsigned int gpio,
+				 int level)
+{
+	struct udevice *pmic = dev_get_parent(dev);
+	const char *l;
+	u8 value;
+	int err;
+
+	if (gpio >= NUM_GPIOS)
+		return -EINVAL;
+
+	err = pmic_reg_read(pmic, AS3722_GPIO_SIGNAL_OUT);
+	if (err < 0) {
+		error("failed to read GPIO signal out register: %d", err);
+		return err;
+	}
+	value = err;
+
+	if (level == 0) {
+		value &= ~(1 << gpio);
+		l = "low";
+	} else {
+		value |= 1 << gpio;
+		l = "high";
+	}
+
+	err = pmic_reg_write(pmic, AS3722_GPIO_SIGNAL_OUT, value);
+	if (err) {
+		error("failed to set GPIO#%u %s: %d", gpio, l, err);
+		return err;
+	}
+
+	return 0;
+}
+
+int as3722_gpio_direction_output(struct udevice *dev, unsigned int gpio,
+				 int value)
+{
+	struct udevice *pmic = dev_get_parent(dev);
+	int err;
+
+	if (gpio > 7)
+		return -EINVAL;
+
+	if (value == 0)
+		value = AS3722_GPIO_CONTROL_MODE_OUTPUT_VDDL;
+	else
+		value = AS3722_GPIO_CONTROL_MODE_OUTPUT_VDDH;
+
+	err = pmic_reg_write(pmic, AS3722_GPIO_CONTROL(gpio), value);
+	if (err) {
+		error("failed to configure GPIO#%u as output: %d", gpio, err);
+		return err;
+	}
+
+	err = as3722_gpio_set_value(pmic, gpio, value);
+	if (err < 0) {
+		error("failed to set GPIO#%u high: %d", gpio, err);
+		return err;
+	}
+
+	return 0;
+}
+
+static int as3722_gpio_probe(struct udevice *dev)
+{
+	struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev);
+
+	uc_priv->gpio_count = NUM_GPIOS;
+	uc_priv->bank_name = "as3722_";
+
+	return 0;
+}
+
+static const struct dm_gpio_ops gpio_as3722_ops = {
+	.direction_output	= as3722_gpio_direction_output,
+	.set_value		= as3722_gpio_set_value,
+};
+
+U_BOOT_DRIVER(gpio_as3722) = {
+	.name	= "gpio_as3722",
+	.id	= UCLASS_GPIO,
+	.ops	= &gpio_as3722_ops,
+	.probe	= as3722_gpio_probe,
+};
diff --git a/include/power/as3722.h b/include/power/as3722.h
index 14afa0c81a..713e79840f 100644
--- a/include/power/as3722.h
+++ b/include/power/as3722.h
@@ -20,6 +20,11 @@
 #define AS3722_ASIC_ID1 0x90
 #define AS3722_ASIC_ID2 0x91
 
+#define AS3722_GPIO_CONTROL(n) (0x08 + (n))
+#define AS3722_GPIO_CONTROL_MODE_OUTPUT_VDDH (1 << 0)
+#define AS3722_GPIO_CONTROL_MODE_OUTPUT_VDDL (7 << 0)
+#define AS3722_GPIO_CONTROL_INVERT (1 << 7)
+
 struct udevice;
 
 int as3722_init(struct udevice **devp);
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 24/31] dm: power: Convert as3722 to driver model

[Simon Glass]

Convert this PMIC driver to driver model and fix up other users. The
regulator and GPIO functions are now handled by separate drivers.

Update nyan-big to work correct. Three boards will need to be updated by
the maintainers: apalis-tk1, jetson-tk1, cei-tk1-som

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
---

Changes in v2: None

 arch/arm/mach-tegra/board2.c          |   6 -
 board/cei/cei-tk1-som/cei-tk1-som.c   |   2 +
 board/nvidia/jetson-tk1/jetson-tk1.c  |   2 +
 board/nvidia/nyan-big/nyan-big.c      |  22 +--
 board/toradex/apalis-tk1/apalis-tk1.c |   6 +
 configs/apalis-tk1_defconfig          |   3 +
 configs/cei-tk1-som_defconfig         |   3 +
 configs/jetson-tk1_defconfig          |   3 +
 configs/nyan-big_defconfig            |   1 +
 drivers/power/pmic/Makefile           |   2 +-
 drivers/power/pmic/as3722.c           | 292 ++++++++++++----------------------
 include/power/as3722.h                |  18 +--
 12 files changed, 133 insertions(+), 227 deletions(-)

diff --git a/arch/arm/mach-tegra/board2.c b/arch/arm/mach-tegra/board2.c
index 5aedd3ef9d..0291c7fb33 100644
--- a/arch/arm/mach-tegra/board2.c
+++ b/arch/arm/mach-tegra/board2.c
@@ -29,7 +29,6 @@
 #ifdef CONFIG_TEGRA_CLOCK_SCALING
 #include <asm/arch/emc.h>
 #endif
-#include <power/as3722.h>
 #include "emc.h"
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -142,11 +141,6 @@ int board_init(void)
 		debug("Memory controller init failed: %d\n", err);
 #  endif
 # endif /* CONFIG_TEGRA_PMU */
-#ifdef CONFIG_PMIC_AS3722
-	err = as3722_init(NULL);
-	if (err && err != -ENODEV)
-		return err;
-#endif
 #endif /* CONFIG_SYS_I2C_TEGRA */
 
 #ifdef CONFIG_USB_EHCI_TEGRA
diff --git a/board/cei/cei-tk1-som/cei-tk1-som.c b/board/cei/cei-tk1-som/cei-tk1-som.c
index 9ba7490c38..7c87bd1eb1 100644
--- a/board/cei/cei-tk1-som/cei-tk1-som.c
+++ b/board/cei/cei-tk1-som/cei-tk1-som.c
@@ -39,6 +39,7 @@ void pinmux_init(void)
 #ifdef CONFIG_PCI_TEGRA
 int tegra_pcie_board_init(void)
 {
+/* TODO: Convert to driver model
 	struct udevice *pmic;
 	int err;
 
@@ -59,6 +60,7 @@ int tegra_pcie_board_init(void)
 		error("failed to set SD4 voltage: %d\n", err);
 		return err;
 	}
+*/
 
 	return 0;
 }
diff --git a/board/nvidia/jetson-tk1/jetson-tk1.c b/board/nvidia/jetson-tk1/jetson-tk1.c
index a66b710cdd..48272d086c 100644
--- a/board/nvidia/jetson-tk1/jetson-tk1.c
+++ b/board/nvidia/jetson-tk1/jetson-tk1.c
@@ -39,6 +39,7 @@ void pinmux_init(void)
 #ifdef CONFIG_PCI_TEGRA
 int tegra_pcie_board_init(void)
 {
+/* TODO: Convert to driver model
 	struct udevice *pmic;
 	int err;
 
@@ -59,6 +60,7 @@ int tegra_pcie_board_init(void)
 		error("failed to set SD4 voltage: %d\n", err);
 		return err;
 	}
+*/
 
 	return 0;
 }
diff --git a/board/nvidia/nyan-big/nyan-big.c b/board/nvidia/nyan-big/nyan-big.c
index 8f68ae9fbe..54acf5418d 100644
--- a/board/nvidia/nyan-big/nyan-big.c
+++ b/board/nvidia/nyan-big/nyan-big.c
@@ -6,6 +6,7 @@
  */
 
 #include <common.h>
+#include <dm.h>
 #include <errno.h>
 #include <asm/gpio.h>
 #include <asm/io.h>
@@ -46,20 +47,23 @@ int tegra_board_id(void)
 
 int tegra_lcd_pmic_init(int board_id)
 {
-	struct udevice *pmic;
+	struct udevice *dev;
 	int ret;
 
-	ret = as3722_get(&pmic);
-	if (ret)
-		return -ENOENT;
+	ret = uclass_get_device_by_driver(UCLASS_PMIC,
+					  DM_GET_DRIVER(pmic_as3722), &dev);
+	if (ret) {
+		debug("%s: Failed to find PMIC\n", __func__);
+		return ret;
+	}
 
 	if (board_id == 0)
-		as3722_write(pmic, 0x00, 0x3c);
+		pmic_reg_write(dev, 0x00, 0x3c);
 	else
-		as3722_write(pmic, 0x00, 0x50);
-	as3722_write(pmic, 0x12, 0x10);
-	as3722_write(pmic, 0x0c, 0x07);
-	as3722_write(pmic, 0x20, 0x10);
+		pmic_reg_write(dev, 0x00, 0x50);
+	pmic_reg_write(dev, 0x12, 0x10);
+	pmic_reg_write(dev, 0x0c, 0x07);
+	pmic_reg_write(dev, 0x20, 0x10);
 
 	return 0;
 }
diff --git a/board/toradex/apalis-tk1/apalis-tk1.c b/board/toradex/apalis-tk1/apalis-tk1.c
index c7e519c19b..5de61e7c2b 100644
--- a/board/toradex/apalis-tk1/apalis-tk1.c
+++ b/board/toradex/apalis-tk1/apalis-tk1.c
@@ -61,6 +61,7 @@ void pinmux_init(void)
 #ifdef CONFIG_PCI_TEGRA
 int tegra_pcie_board_init(void)
 {
+	/* TODO: Convert to driver model
 	struct udevice *pmic;
 	int err;
 
@@ -94,6 +95,7 @@ int tegra_pcie_board_init(void)
 		error("failed to set GPIO#2 high: %d\n", err);
 		return err;
 	}
+	*/
 
 	/* Reset I210 Gigabit Ethernet Controller */
 	gpio_request(LAN_RESET_N, "LAN_RESET_N");
@@ -110,6 +112,7 @@ int tegra_pcie_board_init(void)
 	gpio_direction_output(TEGRA_GPIO(O, 6), 0);
 
 	/* Make sure LDO9 and LDO10 are initially enabled @ 0V */
+	/* TODO: Convert to driver model
 	err = as3722_ldo_enable(pmic, 9);
 	if (err < 0) {
 		error("failed to enable LDO9: %d\n", err);
@@ -130,6 +133,7 @@ int tegra_pcie_board_init(void)
 		error("failed to set LDO10 voltage: %d\n", err);
 		return err;
 	}
+	*/
 
 	mdelay(100);
 
@@ -137,6 +141,7 @@ int tegra_pcie_board_init(void)
 	gpio_set_value(TEGRA_GPIO(O, 6), 1);
 
 	/* Enable LDO9 and LDO10 for +V3.3_ETH on patched prototypes */
+	/* TODO: Convert to driver model
 	err = as3722_ldo_set_voltage(pmic, 9, 0xff);
 	if (err < 0) {
 		error("failed to set LDO9 voltage: %d\n", err);
@@ -147,6 +152,7 @@ int tegra_pcie_board_init(void)
 		error("failed to set LDO10 voltage: %d\n", err);
 		return err;
 	}
+	*/
 
 	mdelay(100);
 	gpio_set_value(LAN_RESET_N, 1);
diff --git a/configs/apalis-tk1_defconfig b/configs/apalis-tk1_defconfig
index 9179aaf92f..ccff112392 100644
--- a/configs/apalis-tk1_defconfig
+++ b/configs/apalis-tk1_defconfig
@@ -32,7 +32,10 @@ CONFIG_PCI=y
 CONFIG_DM_PCI=y
 CONFIG_DM_PCI_COMPAT=y
 CONFIG_PCI_TEGRA=y
+CONFIG_DM_PMIC=y
 CONFIG_PMIC_AS3722=y
+CONFIG_DM_REGULATOR=y
+CONFIG_REGULATOR_AS3722=y
 CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_DM_USB=y
diff --git a/configs/cei-tk1-som_defconfig b/configs/cei-tk1-som_defconfig
index 1a5e47dba5..5623bbfbc6 100644
--- a/configs/cei-tk1-som_defconfig
+++ b/configs/cei-tk1-som_defconfig
@@ -36,7 +36,10 @@ CONFIG_PCI=y
 CONFIG_DM_PCI=y
 CONFIG_DM_PCI_COMPAT=y
 CONFIG_PCI_TEGRA=y
+CONFIG_DM_PMIC=y
 CONFIG_PMIC_AS3722=y
+CONFIG_DM_REGULATOR=y
+CONFIG_REGULATOR_AS3722=y
 CONFIG_SYS_NS16550=y
 CONFIG_TEGRA114_SPI=y
 CONFIG_USB=y
diff --git a/configs/jetson-tk1_defconfig b/configs/jetson-tk1_defconfig
index 65a5832e44..d086951299 100644
--- a/configs/jetson-tk1_defconfig
+++ b/configs/jetson-tk1_defconfig
@@ -36,7 +36,10 @@ CONFIG_PCI=y
 CONFIG_DM_PCI=y
 CONFIG_DM_PCI_COMPAT=y
 CONFIG_PCI_TEGRA=y
+CONFIG_DM_PMIC=y
 CONFIG_PMIC_AS3722=y
+CONFIG_DM_REGULATOR=y
+CONFIG_REGULATOR_AS3722=y
 CONFIG_SYS_NS16550=y
 CONFIG_TEGRA114_SPI=y
 CONFIG_USB=y
diff --git a/configs/nyan-big_defconfig b/configs/nyan-big_defconfig
index 7723f7ebfb..16993b46b9 100644
--- a/configs/nyan-big_defconfig
+++ b/configs/nyan-big_defconfig
@@ -50,6 +50,7 @@ CONFIG_SPI_FLASH_WINBOND=y
 CONFIG_DM_PMIC=y
 CONFIG_PMIC_AS3722=y
 CONFIG_DM_REGULATOR=y
+CONFIG_REGULATOR_AS3722=y
 CONFIG_DM_REGULATOR_FIXED=y
 CONFIG_PWM_TEGRA=y
 CONFIG_DEBUG_UART=y
diff --git a/drivers/power/pmic/Makefile b/drivers/power/pmic/Makefile
index f409e3a0b3..76dda2a070 100644
--- a/drivers/power/pmic/Makefile
+++ b/drivers/power/pmic/Makefile
@@ -12,7 +12,7 @@ obj-$(CONFIG_DM_PMIC_PFUZE100) += pfuze100.o
 obj-$(CONFIG_PMIC_S2MPS11) += s2mps11.o
 obj-$(CONFIG_DM_PMIC_SANDBOX) += sandbox.o i2c_pmic_emul.o
 obj-$(CONFIG_PMIC_ACT8846) += act8846.o
-obj-$(CONFIG_PMIC_AS3722) += as3722.o
+obj-$(CONFIG_PMIC_AS3722) += as3722.o as3722_gpio.o
 obj-$(CONFIG_PMIC_MAX8997) += max8997.o
 obj-$(CONFIG_PMIC_PM8916) += pm8916.o
 obj-$(CONFIG_PMIC_RK8XX) += rk8xx.o
diff --git a/drivers/power/pmic/as3722.c b/drivers/power/pmic/as3722.c
index c09e1de06f..4efe8ee183 100644
--- a/drivers/power/pmic/as3722.c
+++ b/drivers/power/pmic/as3722.c
@@ -11,264 +11,168 @@
 #include <errno.h>
 #include <fdtdec.h>
 #include <i2c.h>
-
+#include <dm/lists.h>
 #include <power/as3722.h>
+#include <power/pmic.h>
 
-#define AS3722_SD_VOLTAGE(n) (0x00 + (n))
-#define AS3722_GPIO_CONTROL(n) (0x08 + (n))
-#define  AS3722_GPIO_CONTROL_MODE_OUTPUT_VDDH (1 << 0)
-#define  AS3722_GPIO_CONTROL_MODE_OUTPUT_VDDL (7 << 0)
-#define  AS3722_GPIO_CONTROL_INVERT (1 << 7)
-#define AS3722_LDO_VOLTAGE(n) (0x10 + (n))
-#define AS3722_GPIO_SIGNAL_OUT 0x20
-#define AS3722_SD_CONTROL 0x4d
-#define AS3722_LDO_CONTROL 0x4e
-#define AS3722_ASIC_ID1 0x90
-#define  AS3722_DEVICE_ID 0x0c
-#define AS3722_ASIC_ID2 0x91
-
-int as3722_read(struct udevice *pmic, u8 reg, u8 *value)
-{
-	int err;
-
-	err = dm_i2c_read(pmic, reg, value, 1);
-	if (err < 0)
-		return err;
-
-	return 0;
-}
+#define AS3722_NUM_OF_REGS	0x92
 
-int as3722_write(struct udevice *pmic, u8 reg, u8 value)
+static int as3722_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
 {
-	int err;
+	int ret;
 
-	err = dm_i2c_write(pmic, reg, &value, 1);
-	if (err < 0)
-		return err;
+	ret = dm_i2c_read(dev, reg, buff, len);
+	if (ret < 0)
+		return ret;
 
 	return 0;
 }
 
-static int as3722_read_id(struct udevice *pmic, u8 *id, u8 *revision)
+static int as3722_write(struct udevice *dev, uint reg, const uint8_t *buff,
+			int len)
 {
-	int err;
+	int ret;
 
-	err = as3722_read(pmic, AS3722_ASIC_ID1, id);
-	if (err) {
-		error("failed to read ID1 register: %d", err);
-		return err;
-	}
-
-	err = as3722_read(pmic, AS3722_ASIC_ID2, revision);
-	if (err) {
-		error("failed to read ID2 register: %d", err);
-		return err;
-	}
+	ret = dm_i2c_write(dev, reg, buff, len);
+	if (ret < 0)
+		return ret;
 
 	return 0;
 }
 
-int as3722_sd_enable(struct udevice *pmic, unsigned int sd)
+static int as3722_read_id(struct udevice *dev, uint *idp, uint *revisionp)
 {
-	u8 value;
-	int err;
-
-	if (sd > 6)
-		return -EINVAL;
+	int ret;
 
-	err = as3722_read(pmic, AS3722_SD_CONTROL, &value);
-	if (err) {
-		error("failed to read SD control register: %d", err);
-		return err;
+	ret = pmic_reg_read(dev, AS3722_ASIC_ID1);
+	if (ret < 0) {
+		error("failed to read ID1 register: %d", ret);
+		return ret;
 	}
+	*idp = ret;
 
-	value |= 1 << sd;
-
-	err = as3722_write(pmic, AS3722_SD_CONTROL, value);
-	if (err < 0) {
-		error("failed to write SD control register: %d", err);
-		return err;
+	ret = pmic_reg_read(dev, AS3722_ASIC_ID2);
+	if (ret < 0) {
+		error("failed to read ID2 register: %d", ret);
+		return ret;
 	}
+	*revisionp = ret;
 
 	return 0;
 }
 
-int as3722_sd_set_voltage(struct udevice *pmic, unsigned int sd, u8 value)
+/* TODO(treding@nvidia.com): Add proper regulator support to avoid this */
+int as3722_sd_set_voltage(struct udevice *dev, unsigned int sd, u8 value)
 {
-	int err;
+	int ret;
 
 	if (sd > 6)
 		return -EINVAL;
 
-	err = as3722_write(pmic, AS3722_SD_VOLTAGE(sd), value);
-	if (err < 0) {
-		error("failed to write SD%u voltage register: %d", sd, err);
-		return err;
+	ret = pmic_reg_write(dev, AS3722_SD_VOLTAGE(sd), value);
+	if (ret < 0) {
+		error("failed to write SD%u voltage register: %d", sd, ret);
+		return ret;
 	}
 
 	return 0;
 }
 
-int as3722_ldo_enable(struct udevice *pmic, unsigned int ldo)
+int as3722_ldo_set_voltage(struct udevice *dev, unsigned int ldo, u8 value)
 {
-	u8 value;
-	int err;
+	int ret;
 
 	if (ldo > 11)
 		return -EINVAL;
 
-	err = as3722_read(pmic, AS3722_LDO_CONTROL, &value);
-	if (err) {
-		error("failed to read LDO control register: %d", err);
-		return err;
-	}
-
-	value |= 1 << ldo;
-
-	err = as3722_write(pmic, AS3722_LDO_CONTROL, value);
-	if (err < 0) {
-		error("failed to write LDO control register: %d", err);
-		return err;
-	}
-
-	return 0;
-}
-
-int as3722_ldo_set_voltage(struct udevice *pmic, unsigned int ldo, u8 value)
-{
-	int err;
-
-	if (ldo > 11)
-		return -EINVAL;
-
-	err = as3722_write(pmic, AS3722_LDO_VOLTAGE(ldo), value);
-	if (err < 0) {
+	ret = pmic_reg_write(dev, AS3722_LDO_VOLTAGE(ldo), value);
+	if (ret < 0) {
 		error("failed to write LDO%u voltage register: %d", ldo,
-		      err);
-		return err;
+		      ret);
+		return ret;
 	}
 
 	return 0;
 }
 
-int as3722_gpio_configure(struct udevice *pmic, unsigned int gpio,
-			  unsigned long flags)
+static int as3722_probe(struct udevice *dev)
 {
-	u8 value = 0;
-	int err;
+	uint id, revision;
+	int ret;
 
-	if (flags & AS3722_GPIO_OUTPUT_VDDH)
-		value |= AS3722_GPIO_CONTROL_MODE_OUTPUT_VDDH;
-
-	if (flags & AS3722_GPIO_INVERT)
-		value |= AS3722_GPIO_CONTROL_INVERT;
-
-	err = as3722_write(pmic, AS3722_GPIO_CONTROL(gpio), value);
-	if (err) {
-		error("failed to configure GPIO#%u: %d", gpio, err);
-		return err;
+	ret = as3722_read_id(dev, &id, &revision);
+	if (ret < 0) {
+		error("failed to read ID: %d", ret);
+		return ret;
 	}
 
-	return 0;
-}
-
-static int as3722_gpio_set(struct udevice *pmic, unsigned int gpio,
-			   unsigned int level)
-{
-	const char *l;
-	u8 value;
-	int err;
-
-	if (gpio > 7)
-		return -EINVAL;
-
-	err = as3722_read(pmic, AS3722_GPIO_SIGNAL_OUT, &value);
-	if (err < 0) {
-		error("failed to read GPIO signal out register: %d", err);
-		return err;
-	}
-
-	if (level == 0) {
-		value &= ~(1 << gpio);
-		l = "low";
-	} else {
-		value |= 1 << gpio;
-		l = "high";
+	if (id != AS3722_DEVICE_ID) {
+		error("unknown device");
+		return -ENOENT;
 	}
 
-	err = as3722_write(pmic, AS3722_GPIO_SIGNAL_OUT, value);
-	if (err) {
-		error("failed to set GPIO#%u %s: %d", gpio, l, err);
-		return err;
-	}
+	debug("AS3722 revision %#x found on I2C bus %s\n", revision, dev->name);
 
 	return 0;
 }
 
-int as3722_gpio_direction_output(struct udevice *pmic, unsigned int gpio,
-				 unsigned int level)
-{
-	u8 value;
-	int err;
-
-	if (gpio > 7)
-		return -EINVAL;
+#if CONFIG_IS_ENABLED(PMIC_CHILDREN)
+static const struct pmic_child_info pmic_children_info[] = {
+	{ .prefix = "sd", .driver = "as3722_stepdown"},
+	{ .prefix = "ldo", .driver = "as3722_ldo"},
+	{ },
+};
 
-	if (level == 0)
-		value = AS3722_GPIO_CONTROL_MODE_OUTPUT_VDDL;
-	else
-		value = AS3722_GPIO_CONTROL_MODE_OUTPUT_VDDH;
+static int as3722_bind(struct udevice *dev)
+{
+	struct udevice *gpio_dev;
+	ofnode regulators_node;
+	int children;
+	int ret;
 
-	err = as3722_write(pmic, AS3722_GPIO_CONTROL(gpio), value);
-	if (err) {
-		error("failed to configure GPIO#%u as output: %d", gpio, err);
-		return err;
+	regulators_node = dev_read_subnode(dev, "regulators");
+	if (!ofnode_valid(regulators_node)) {
+		debug("%s: %s regulators subnode not found\n", __func__,
+		      dev->name);
+		return -ENXIO;
 	}
 
-	err = as3722_gpio_set(pmic, gpio, level);
-	if (err < 0) {
-		error("failed to set GPIO#%u high: %d", gpio, err);
-		return err;
+	children = pmic_bind_children(dev, regulators_node, pmic_children_info);
+	if (!children)
+		debug("%s: %s - no child found\n", __func__, dev->name);
+	ret = device_bind_driver(dev, "gpio_as3722", "gpio_as3722", &gpio_dev);
+	if (ret) {
+		debug("%s: Cannot bind GPIOs (ret=%d)\n", __func__, ret);
+		return ret;
 	}
 
 	return 0;
 }
+#endif
 
-/* Temporary function until we get the pmic framework */
-int as3722_get(struct udevice **devp)
+static int as3722_reg_count(struct udevice *dev)
 {
-	int bus = 0;
-	int address = 0x40;
-
-	return i2c_get_chip_for_busnum(bus, address, 1, devp);
+	return AS3722_NUM_OF_REGS;
 }
 
-int as3722_init(struct udevice **devp)
-{
-	struct udevice *pmic;
-	u8 id, revision;
-	const unsigned int bus = 0;
-	const unsigned int address = 0x40;
-	int err;
-
-	err = i2c_get_chip_for_busnum(bus, address, 1, &pmic);
-	if (err)
-		return err;
-	err = as3722_read_id(pmic, &id, &revision);
-	if (err < 0) {
-		error("failed to read ID: %d", err);
-		return err;
-	}
-
-	if (id != AS3722_DEVICE_ID) {
-		error("unknown device");
-		return -ENOENT;
-	}
-
-	debug("AS3722 revision %#x found on I2C bus %u, address %#x\n",
-	      revision, bus, address);
-	if (devp)
-		*devp = pmic;
-
-	return 0;
-}
+static struct dm_pmic_ops as3722_ops = {
+	.reg_count = as3722_reg_count,
+	.read = as3722_read,
+	.write = as3722_write,
+};
+
+static const struct udevice_id as3722_ids[] = {
+	{ .compatible = "ams,as3722" },
+	{ }
+};
+
+U_BOOT_DRIVER(pmic_as3722) = {
+	.name = "as3722_pmic",
+	.id = UCLASS_PMIC,
+	.of_match = as3722_ids,
+#if CONFIG_IS_ENABLED(PMIC_CHILDREN)
+	.bind = as3722_bind,
+#endif
+	.probe = as3722_probe,
+	.ops = &as3722_ops,
+};
diff --git a/include/power/as3722.h b/include/power/as3722.h
index 713e79840f..491f1b7ea7 100644
--- a/include/power/as3722.h
+++ b/include/power/as3722.h
@@ -7,8 +7,6 @@
 #ifndef __POWER_AS3722_H__
 #define __POWER_AS3722_H__
 
-#include <asm/types.h>
-
 #define AS3722_GPIO_OUTPUT_VDDH (1 << 0)
 #define AS3722_GPIO_INVERT (1 << 1)
 
@@ -21,23 +19,9 @@
 #define AS3722_ASIC_ID2 0x91
 
 #define AS3722_GPIO_CONTROL(n) (0x08 + (n))
+#define AS3722_GPIO_SIGNAL_OUT 0x20
 #define AS3722_GPIO_CONTROL_MODE_OUTPUT_VDDH (1 << 0)
 #define AS3722_GPIO_CONTROL_MODE_OUTPUT_VDDL (7 << 0)
 #define AS3722_GPIO_CONTROL_INVERT (1 << 7)
 
-struct udevice;
-
-int as3722_init(struct udevice **devp);
-int as3722_sd_enable(struct udevice *pmic, unsigned int sd);
-int as3722_sd_set_voltage(struct udevice *pmic, unsigned int sd, u8 value);
-int as3722_ldo_enable(struct udevice *pmic, unsigned int ldo);
-int as3722_ldo_set_voltage(struct udevice *pmic, unsigned int ldo, u8 value);
-int as3722_gpio_configure(struct udevice *pmic, unsigned int gpio,
-			  unsigned long flags);
-int as3722_gpio_direction_output(struct udevice *pmic, unsigned int gpio,
-				 unsigned int level);
-int as3722_read(struct udevice *pmic, u8 reg, u8 *value);
-int as3722_write(struct udevice *pmic, u8 reg, u8 value);
-int as3722_get(struct udevice **devp);
-
 #endif /* __POWER_AS3722_H__ */
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 25/31] dm: serial: ns16550: Convert to livetree

[Simon Glass]

Update this driver to support a live device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 drivers/serial/ns16550.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c
index 52c52c1ad1..330c5e186a 100644
--- a/drivers/serial/ns16550.c
+++ b/drivers/serial/ns16550.c
@@ -8,7 +8,6 @@
 #include <clk.h>
 #include <dm.h>
 #include <errno.h>
-#include <fdtdec.h>
 #include <ns16550.h>
 #include <serial.h>
 #include <watchdog.h>
@@ -395,7 +394,7 @@ int ns16550_serial_ofdata_to_platdata(struct udevice *dev)
 	int err;
 
 	/* try Processor Local Bus device first */
-	addr = devfdt_get_addr(dev);
+	addr = dev_read_addr(dev);
 #if defined(CONFIG_PCI) && defined(CONFIG_DM_PCI)
 	if (addr == FDT_ADDR_T_NONE) {
 		/* then try pci device */
@@ -434,11 +433,8 @@ int ns16550_serial_ofdata_to_platdata(struct udevice *dev)
 	plat->base = (unsigned long)map_physmem(addr, 0, MAP_NOCACHE);
 #endif
 
-	plat->reg_offset = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
-				     "reg-offset", 0);
-	plat->reg_shift = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
-					 "reg-shift", 0);
-
+	plat->reg_offset = dev_read_u32_default(dev, "reg-offset", 0);
+	plat->reg_shift = dev_read_u32_default(dev, "reg-shift", 0);
 	err = clk_get_by_index(dev, 0, &clk);
 	if (!err) {
 		err = clk_get_rate(&clk);
@@ -450,9 +446,8 @@ int ns16550_serial_ofdata_to_platdata(struct udevice *dev)
 	}
 
 	if (!plat->clock)
-		plat->clock = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
-					     "clock-frequency",
-					     CONFIG_SYS_NS16550_CLK);
+		plat->clock = dev_read_u32_default(dev, "clock-frequency",
+						   CONFIG_SYS_NS16550_CLK);
 	if (!plat->clock) {
 		debug("ns16550 clock not defined\n");
 		return -EINVAL;
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 26/31] dm: serial: Separate out the core serial-device finding code

[Simon Glass]

This function is quite long. Move the core code into a separate function
in preparation for adding livetree support.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 drivers/serial/serial-uclass.c | 84 ++++++++++++++++++++++--------------------
 1 file changed, 44 insertions(+), 40 deletions(-)

diff --git a/drivers/serial/serial-uclass.c b/drivers/serial/serial-uclass.c
index a9c4f89e1a..ede5c2c0be 100644
--- a/drivers/serial/serial-uclass.c
+++ b/drivers/serial/serial-uclass.c
@@ -8,7 +8,6 @@
 #include <dm.h>
 #include <environment.h>
 #include <errno.h>
-#include <fdtdec.h>
 #include <os.h>
 #include <serial.h>
 #include <stdio_dev.h>
@@ -27,11 +26,53 @@ static const unsigned long baudrate_table[] = CONFIG_SYS_BAUDRATE_TABLE;
 #error "Serial is required before relocation - define CONFIG_SYS_MALLOC_F_LEN to make this work"
 #endif
 
+static int serial_check_stdout(const void *blob, struct udevice **devp)
+{
+	int node;
+
+	/* Check for a chosen console */
+	node = fdtdec_get_chosen_node(blob, "stdout-path");
+	if (node < 0) {
+		const char *str, *p, *name;
+
+		/*
+		 * Deal with things like
+		 *	stdout-path = "serial0:115200n8";
+		 *
+		 * We need to look up the alias and then follow it to the
+		 * correct node.
+		 */
+		str = fdtdec_get_chosen_prop(blob, "stdout-path");
+		if (str) {
+			p = strchr(str, ':');
+			name = fdt_get_alias_namelen(blob, str,
+					p ? p - str : strlen(str));
+			if (name)
+				node = fdt_path_offset(blob, name);
+		}
+	}
+	if (node < 0)
+		node = fdt_path_offset(blob, "console");
+	if (!uclass_get_device_by_of_offset(UCLASS_SERIAL, node, devp))
+		return 0;
+
+	/*
+	 * If the console is not marked to be bound before relocation, bind it
+	 * anyway.
+	 */
+	if (node > 0 && !lists_bind_fdt(gd->dm_root, offset_to_ofnode(node),
+					devp)) {
+		if (!device_probe(*devp))
+			return 0;
+	}
+
+	return -ENODEV;
+}
+
 static void serial_find_console_or_panic(void)
 {
 	const void *blob = gd->fdt_blob;
 	struct udevice *dev;
-	int node;
 
 	if (CONFIG_IS_ENABLED(OF_PLATDATA)) {
 		uclass_first_device(UCLASS_SERIAL, &dev);
@@ -40,47 +81,10 @@ static void serial_find_console_or_panic(void)
 			return;
 		}
 	} else if (CONFIG_IS_ENABLED(OF_CONTROL) && blob) {
-		/* Check for a chosen console */
-		node = fdtdec_get_chosen_node(blob, "stdout-path");
-		if (node < 0) {
-			const char *str, *p, *name;
-
-			/*
-			 * Deal with things like
-			 *	stdout-path = "serial0:115200n8";
-			 *
-			 * We need to look up the alias and then follow it to
-			 * the correct node.
-			 */
-			str = fdtdec_get_chosen_prop(blob, "stdout-path");
-			if (str) {
-				p = strchr(str, ':');
-				name = fdt_get_alias_namelen(blob, str,
-						p ? p - str : strlen(str));
-				if (name)
-					node = fdt_path_offset(blob, name);
-			}
-		}
-		if (node < 0)
-			node = fdt_path_offset(blob, "console");
-		if (!uclass_get_device_by_of_offset(UCLASS_SERIAL, node,
-						    &dev)) {
+		if (!serial_check_stdout(blob, &dev)) {
 			gd->cur_serial_dev = dev;
 			return;
 		}
-
-		/*
-		 * If the console is not marked to be bound before relocation,
-		 * bind it anyway.
-		 */
-		if (node > 0 &&
-		    !lists_bind_fdt(gd->dm_root, offset_to_ofnode(node),
-				    &dev)) {
-			if (!device_probe(dev)) {
-				gd->cur_serial_dev = dev;
-				return;
-			}
-		}
 	}
 	if (!SPL_BUILD || !CONFIG_IS_ENABLED(OF_CONTROL) || !blob) {
 		/*
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 27/31] dm: serial: Add livetree support

[Simon Glass]

Add support for a live device tree to the core serial uclass.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 drivers/serial/serial-uclass.c | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/drivers/serial/serial-uclass.c b/drivers/serial/serial-uclass.c
index ede5c2c0be..976b99ce7c 100644
--- a/drivers/serial/serial-uclass.c
+++ b/drivers/serial/serial-uclass.c
@@ -14,6 +14,7 @@
 #include <watchdog.h>
 #include <dm/lists.h>
 #include <dm/device-internal.h>
+#include <dm/of_access.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -81,9 +82,20 @@ static void serial_find_console_or_panic(void)
 			return;
 		}
 	} else if (CONFIG_IS_ENABLED(OF_CONTROL) && blob) {
-		if (!serial_check_stdout(blob, &dev)) {
-			gd->cur_serial_dev = dev;
-			return;
+		/* Live tree has support for stdout */
+		if (of_live_active()) {
+			struct device_node *np = of_get_stdout();
+
+			if (np && !uclass_get_device_by_ofnode(UCLASS_SERIAL,
+					np_to_ofnode(np), &dev)) {
+				gd->cur_serial_dev = dev;
+				return;
+			}
+		} else {
+			if (!serial_check_stdout(blob, &dev)) {
+				gd->cur_serial_dev = dev;
+				return;
+			}
 		}
 	}
 	if (!SPL_BUILD || !CONFIG_IS_ENABLED(OF_CONTROL) || !blob) {
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 28/31] tegra: Show a debug message if the LCD PMIC fails to start

[Simon Glass]

This error condition should have a debug() message. Add it.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 arch/arm/mach-tegra/board2.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-tegra/board2.c b/arch/arm/mach-tegra/board2.c
index 0291c7fb33..e0a39e1a32 100644
--- a/arch/arm/mach-tegra/board2.c
+++ b/arch/arm/mach-tegra/board2.c
@@ -150,8 +150,10 @@ int board_init(void)
 #if defined(CONFIG_DM_VIDEO)
 	board_id = tegra_board_id();
 	err = tegra_lcd_pmic_init(board_id);
-	if (err)
+	if (err) {
+		debug("Failed to set up LCD PMIC\n");
 		return err;
+	}
 #endif
 
 #ifdef CONFIG_TEGRA_NAND
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 29/31] fdtdec: Drop old compatible values

[Simon Glass]

These are not needed now since the drivers now use driver model. Drop
them.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 include/fdtdec.h | 6 ------
 lib/fdtdec.c     | 6 ------
 2 files changed, 12 deletions(-)

diff --git a/include/fdtdec.h b/include/fdtdec.h
index eda2ffaf66..4a0947c626 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -119,12 +119,6 @@ enum fdt_compat_id {
 	COMPAT_NVIDIA_TEGRA20_EMC,	/* Tegra20 memory controller */
 	COMPAT_NVIDIA_TEGRA20_EMC_TABLE, /* Tegra20 memory timing table */
 	COMPAT_NVIDIA_TEGRA20_NAND,	/* Tegra2 NAND controller */
-	COMPAT_NVIDIA_TEGRA124_PMC,	/* Tegra 124 power mgmt controller */
-	COMPAT_NVIDIA_TEGRA186_SDMMC,	/* Tegra186 SDMMC controller */
-	COMPAT_NVIDIA_TEGRA210_SDMMC,	/* Tegra210 SDMMC controller */
-	COMPAT_NVIDIA_TEGRA124_SDMMC,	/* Tegra124 SDMMC controller */
-	COMPAT_NVIDIA_TEGRA30_SDMMC,	/* Tegra30 SDMMC controller */
-	COMPAT_NVIDIA_TEGRA20_SDMMC,	/* Tegra20 SDMMC controller */
 	COMPAT_NVIDIA_TEGRA124_XUSB_PADCTL,
 					/* Tegra124 XUSB pad controller */
 	COMPAT_NVIDIA_TEGRA210_XUSB_PADCTL,
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index 5a5645a0bf..a45783dbf8 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -33,12 +33,6 @@ static const char * const compat_names[COMPAT_COUNT] = {
 	COMPAT(NVIDIA_TEGRA20_EMC, "nvidia,tegra20-emc"),
 	COMPAT(NVIDIA_TEGRA20_EMC_TABLE, "nvidia,tegra20-emc-table"),
 	COMPAT(NVIDIA_TEGRA20_NAND, "nvidia,tegra20-nand"),
-	COMPAT(NVIDIA_TEGRA124_PMC, "nvidia,tegra124-pmc"),
-	COMPAT(NVIDIA_TEGRA186_SDMMC, "nvidia,tegra186-sdhci"),
-	COMPAT(NVIDIA_TEGRA210_SDMMC, "nvidia,tegra210-sdhci"),
-	COMPAT(NVIDIA_TEGRA124_SDMMC, "nvidia,tegra124-sdhci"),
-	COMPAT(NVIDIA_TEGRA30_SDMMC, "nvidia,tegra30-sdhci"),
-	COMPAT(NVIDIA_TEGRA20_SDMMC, "nvidia,tegra20-sdhci"),
 	COMPAT(NVIDIA_TEGRA124_XUSB_PADCTL, "nvidia,tegra124-xusb-padctl"),
 	COMPAT(NVIDIA_TEGRA210_XUSB_PADCTL, "nvidia,tegra210-xusb-padctl"),
 	COMPAT(SMSC_LAN9215, "smsc,lan9215"),
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 30/31] tegra: fdt: Ensure that the console UART is enabled

[Simon Glass]

Many tegra boards have the console UART node disabled. With livetree this
prevents serial from working since it does not 'force' the console to be
bound. Updates the affected boards to fix this error.

The boards were checked with:

for b in $(grep  tegra boards.cfg  |grep -v integrator | \
		awk '{print $7}' | sort); do
	echo $b;
	fdtgrep -c nvidia,tegra20-uart b/$b/u-boot.dtb |grep okay;
done

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2:
- Add new patch to ensure that the console UART is enabled

 arch/arm/dts/tegra114-dalmore.dts     | 4 ++++
 arch/arm/dts/tegra124-cei-tk1-som.dts | 4 ++++
 arch/arm/dts/tegra124-jetson-tk1.dts  | 4 ++++
 arch/arm/dts/tegra124-venice2.dts     | 4 ++++
 arch/arm/dts/tegra186-p2771-0000.dtsi | 4 ++++
 arch/arm/dts/tegra20-colibri.dts      | 4 ++++
 arch/arm/dts/tegra20-harmony.dts      | 4 ++++
 arch/arm/dts/tegra20-trimslice.dts    | 4 ++++
 arch/arm/dts/tegra20-whistler.dts     | 4 ++++
 arch/arm/dts/tegra210-e2220-1170.dts  | 4 ++++
 arch/arm/dts/tegra210-p2371-0000.dts  | 4 ++++
 arch/arm/dts/tegra210-p2371-2180.dts  | 4 ++++
 arch/arm/dts/tegra210-p2571.dts       | 4 ++++
 arch/arm/dts/tegra30-apalis.dts       | 4 ++++
 arch/arm/dts/tegra30-beaver.dts       | 4 ++++
 arch/arm/dts/tegra30-cardhu.dts       | 4 ++++
 arch/arm/dts/tegra30-colibri.dts      | 4 ++++
 arch/arm/dts/tegra30-tec-ng.dts       | 4 ++++
 18 files changed, 72 insertions(+)

diff --git a/arch/arm/dts/tegra114-dalmore.dts b/arch/arm/dts/tegra114-dalmore.dts
index 5f4df88f84..18bcb75faf 100644
--- a/arch/arm/dts/tegra114-dalmore.dts
+++ b/arch/arm/dts/tegra114-dalmore.dts
@@ -93,3 +93,7 @@
 		};
 	};
 };
+
+&uartd {
+	status = "okay";
+};
diff --git a/arch/arm/dts/tegra124-cei-tk1-som.dts b/arch/arm/dts/tegra124-cei-tk1-som.dts
index c4d4f9d89f..b1dd4181ac 100644
--- a/arch/arm/dts/tegra124-cei-tk1-som.dts
+++ b/arch/arm/dts/tegra124-cei-tk1-som.dts
@@ -475,3 +475,7 @@
 		};
 	};
 };
+
+&uartd {
+	status = "okay";
+};
diff --git a/arch/arm/dts/tegra124-jetson-tk1.dts b/arch/arm/dts/tegra124-jetson-tk1.dts
index f1db952355..d6420436cd 100644
--- a/arch/arm/dts/tegra124-jetson-tk1.dts
+++ b/arch/arm/dts/tegra124-jetson-tk1.dts
@@ -480,3 +480,7 @@
 		};
 	};
 };
+
+&uartd {
+	status = "okay";
+};
diff --git a/arch/arm/dts/tegra124-venice2.dts b/arch/arm/dts/tegra124-venice2.dts
index add9244e68..7e9c6aa183 100644
--- a/arch/arm/dts/tegra124-venice2.dts
+++ b/arch/arm/dts/tegra124-venice2.dts
@@ -109,3 +109,7 @@
 	};
 
 };
+
+&uarta {
+	status = "okay";
+};
diff --git a/arch/arm/dts/tegra186-p2771-0000.dtsi b/arch/arm/dts/tegra186-p2771-0000.dtsi
index 54b2539ff4..a1319dc493 100644
--- a/arch/arm/dts/tegra186-p2771-0000.dtsi
+++ b/arch/arm/dts/tegra186-p2771-0000.dtsi
@@ -76,3 +76,7 @@
 		};
 	};
 };
+
+&uarta {
+	status = "okay";
+};
diff --git a/arch/arm/dts/tegra20-colibri.dts b/arch/arm/dts/tegra20-colibri.dts
index 3c10dd6630..9171319d98 100644
--- a/arch/arm/dts/tegra20-colibri.dts
+++ b/arch/arm/dts/tegra20-colibri.dts
@@ -162,3 +162,7 @@
 		};
 	};
 };
+
+&uarta {
+	status = "okay";
+};
diff --git a/arch/arm/dts/tegra20-harmony.dts b/arch/arm/dts/tegra20-harmony.dts
index dcbde7c2ed..0c907054db 100644
--- a/arch/arm/dts/tegra20-harmony.dts
+++ b/arch/arm/dts/tegra20-harmony.dts
@@ -812,3 +812,7 @@
 		clock-names = "pll_a", "pll_a_out0", "mclk";
 	};
 };
+
+&uartd {
+	status = "okay";
+};
diff --git a/arch/arm/dts/tegra20-trimslice.dts b/arch/arm/dts/tegra20-trimslice.dts
index 7fb7dd0b58..31f509ab12 100644
--- a/arch/arm/dts/tegra20-trimslice.dts
+++ b/arch/arm/dts/tegra20-trimslice.dts
@@ -129,3 +129,7 @@
 	};
 
 };
+
+&uarta {
+	status = "okay";
+};
diff --git a/arch/arm/dts/tegra20-whistler.dts b/arch/arm/dts/tegra20-whistler.dts
index 447874674d..074d377ca1 100644
--- a/arch/arm/dts/tegra20-whistler.dts
+++ b/arch/arm/dts/tegra20-whistler.dts
@@ -75,3 +75,7 @@
 	};
 
 };
+
+&uarta {
+	status = "okay";
+};
diff --git a/arch/arm/dts/tegra210-e2220-1170.dts b/arch/arm/dts/tegra210-e2220-1170.dts
index 70cd72b561..e6b06862d8 100644
--- a/arch/arm/dts/tegra210-e2220-1170.dts
+++ b/arch/arm/dts/tegra210-e2220-1170.dts
@@ -57,3 +57,7 @@
 		};
 	};
 };
+
+&uarta {
+	status = "okay";
+};
diff --git a/arch/arm/dts/tegra210-p2371-0000.dts b/arch/arm/dts/tegra210-p2371-0000.dts
index d9612962bd..539e7cef93 100644
--- a/arch/arm/dts/tegra210-p2371-0000.dts
+++ b/arch/arm/dts/tegra210-p2371-0000.dts
@@ -58,3 +58,7 @@
 		};
 	};
 };
+
+&uarta {
+	status = "okay";
+};
diff --git a/arch/arm/dts/tegra210-p2371-2180.dts b/arch/arm/dts/tegra210-p2371-2180.dts
index 0dc06a4721..da4349bd03 100644
--- a/arch/arm/dts/tegra210-p2371-2180.dts
+++ b/arch/arm/dts/tegra210-p2371-2180.dts
@@ -109,3 +109,7 @@
 		};
 	};
 };
+
+&uarta {
+	status = "okay";
+};
diff --git a/arch/arm/dts/tegra210-p2571.dts b/arch/arm/dts/tegra210-p2571.dts
index 2afcde5ca2..16370c596e 100644
--- a/arch/arm/dts/tegra210-p2571.dts
+++ b/arch/arm/dts/tegra210-p2571.dts
@@ -105,3 +105,7 @@
 		};
 	};
 };
+
+&uarta {
+	status = "okay";
+};
diff --git a/arch/arm/dts/tegra30-apalis.dts b/arch/arm/dts/tegra30-apalis.dts
index 9e4ab8c26f..e739c595ab 100644
--- a/arch/arm/dts/tegra30-apalis.dts
+++ b/arch/arm/dts/tegra30-apalis.dts
@@ -332,3 +332,7 @@
 		};
 	};
 };
+
+&uarta {
+	status = "okay";
+};
diff --git a/arch/arm/dts/tegra30-beaver.dts b/arch/arm/dts/tegra30-beaver.dts
index 4a32fcf44a..c1a15bb4b3 100644
--- a/arch/arm/dts/tegra30-beaver.dts
+++ b/arch/arm/dts/tegra30-beaver.dts
@@ -346,3 +346,7 @@
 		};
 	};
 };
+
+&uarta {
+	status = "okay";
+};
diff --git a/arch/arm/dts/tegra30-cardhu.dts b/arch/arm/dts/tegra30-cardhu.dts
index 70fd916f1a..5b9798c5a8 100644
--- a/arch/arm/dts/tegra30-cardhu.dts
+++ b/arch/arm/dts/tegra30-cardhu.dts
@@ -451,3 +451,7 @@
 		};
 	};
 };
+
+&uarta {
+	status = "okay";
+};
diff --git a/arch/arm/dts/tegra30-colibri.dts b/arch/arm/dts/tegra30-colibri.dts
index 3cff2f62e6..49ebe91fb2 100644
--- a/arch/arm/dts/tegra30-colibri.dts
+++ b/arch/arm/dts/tegra30-colibri.dts
@@ -106,3 +106,7 @@
 		};
 	};
 };
+
+&uarta {
+	status = "okay";
+};
diff --git a/arch/arm/dts/tegra30-tec-ng.dts b/arch/arm/dts/tegra30-tec-ng.dts
index e924acc35c..f2a49b8cbe 100644
--- a/arch/arm/dts/tegra30-tec-ng.dts
+++ b/arch/arm/dts/tegra30-tec-ng.dts
@@ -20,3 +20,7 @@
 		status = "okay";
 	};
 };
+
+&uartd {
+	status = "okay";
+};
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 31/31] dm: tegra: Move nyan-big and beaver to livetree

[Simon Glass]

Change these board to use a live device tree after relocation.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2:
- Enable livetree for beaver also
- Add timing information

 configs/beaver_defconfig   | 1 +
 configs/nyan-big_defconfig | 1 +
 2 files changed, 2 insertions(+)

diff --git a/configs/beaver_defconfig b/configs/beaver_defconfig
index 71d6cd52c1..10fd50d925 100644
--- a/configs/beaver_defconfig
+++ b/configs/beaver_defconfig
@@ -25,6 +25,7 @@ CONFIG_CMD_EXT4_WRITE=y
 # CONFIG_SPL_DOS_PARTITION is not set
 # CONFIG_SPL_ISO_PARTITION is not set
 # CONFIG_SPL_EFI_PARTITION is not set
+CONFIG_OF_LIVE=y
 CONFIG_SPL_DM=y
 CONFIG_DFU_MMC=y
 CONFIG_DFU_RAM=y
diff --git a/configs/nyan-big_defconfig b/configs/nyan-big_defconfig
index 16993b46b9..1a4398612f 100644
--- a/configs/nyan-big_defconfig
+++ b/configs/nyan-big_defconfig
@@ -36,6 +36,7 @@ CONFIG_CMD_EXT4_WRITE=y
 # CONFIG_SPL_DOS_PARTITION is not set
 # CONFIG_SPL_ISO_PARTITION is not set
 # CONFIG_SPL_EFI_PARTITION is not set
+CONFIG_OF_LIVE=y
 CONFIG_SPL_DM=y
 CONFIG_REGMAP=y
 CONFIG_SYSCON=y
-- 
2.13.0.506.g27d5fe0cd-goog

[U-Boot] [PATCH v2 00/31] dm: tegra: Move nyan-big and beaver to livetree

[Simon Glass]

Hi Tom (Warren) / Marcel,

On 2 June 2017 at 21:03, Simon Glass <sjg@chromium.org> wrote:
>
> This moves an entire board to use a live device tree as an example of the
> impact.
>
> Nyan-big was chosen because I can easily and boot U-Boot without any
> media swapping, etc. Beaver is enabled as well since it failed to boot
> with serial v1 due to a disabled console node.
>

Have you been able to test this v2 series? Some problems were reported
with v1 and I have found a few more since I discovered my jetson-tk1
board. I'm planning to send a v3 soon, but please let me know if you
see any issues.

Regards,
Simon

[U-Boot] [PATCH v2 00/31] dm: tegra: Move nyan-big and beaver to livetree

[Simon Glass]

Hi,

On 8 June 2017 at 21:06, Simon Glass <sjg@chromium.org> wrote:
> Hi Tom (Warren) / Marcel,
>
> On 2 June 2017 at 21:03, Simon Glass <sjg@chromium.org> wrote:
>>
>> This moves an entire board to use a live device tree as an example of the
>> impact.
>>
>> Nyan-big was chosen because I can easily and boot U-Boot without any
>> media swapping, etc. Beaver is enabled as well since it failed to boot
>> with serial v1 due to a disabled console node.
>>
>
> Have you been able to test this v2 series? Some problems were reported
> with v1 and I have found a few more since I discovered my jetson-tk1
> board. I'm planning to send a v3 soon, but please let me know if you
> see any issues.

One more note - I pushed a v3 series to u-boot-dm/livet-working but
have not sent the patches. Let me know if you find anything.

Regards,
Simon

[U-Boot] [PATCH v2 00/31] dm: tegra: Move nyan-big and beaver to livetree

[Marcel Ziswiler]

Hi Simon

On Thu, 2017-06-08 at 22:04 -0600, Simon Glass wrote:
> Hi,
> 
> On 8 June 2017 at 21:06, Simon Glass <sjg@chromium.org> wrote:
> > Hi Tom (Warren) / Marcel,
> > 
> > On 2 June 2017 at 21:03, Simon Glass <sjg@chromium.org> wrote:
> > > 
> > > This moves an entire board to use a live device tree as an
> > > example of the
> > > impact.
> > > 
> > > Nyan-big was chosen because I can easily and boot U-Boot without
> > > any
> > > media swapping, etc. Beaver is enabled as well since it failed to
> > > boot
> > > with serial v1 due to a disabled console node.
> > > 
> > 
> > Have you been able to test this v2 series? Some problems were
> > reported
> > with v1 and I have found a few more since I discovered my jetson-
> > tk1
> > board. I'm planning to send a v3 soon, but please let me know if
> > you
> > see any issues.
> 
> One more note - I pushed a v3 series to u-boot-dm/livet-working but
> have not sent the patches. Let me know if you find anything.

While Apalis TK1 now at least boots without any GPIO driver issues I
still saw the following few glitches:

Apalis TK1 # gpio status -a
Bank A:
A0: func
A1: input: 1 [ ]
A2: func
...
FF7: func

Bank as3722_:
as3722_0: unknown
as3722_1: unknown
as3722_2: unknown
as3722_3: unknown
as3722_4: unknown
as3722_5: unknown
as3722_6: unknown
as3722_7: unknown

Apalis TK1 # mmc dev 0
tegra_mmc_send_cmd_bounced: MMC Timeout
    Interrupt status        0x00000001
    Interrupt status enable 0xffff003b
    Interrupt signal enable 0xffff0002
    Present status          0x01fb02f6
mmc_init: -1, time 8066

While PCIe enumeration does not error out it seems not to detect the
Ethernet chip:

Apalis TK1 # pci enum
Apalis TK1 # dm tree
 Class       Probed   Name
----------------------------------------
 root        [ + ]    root_driver
 pci         [ + ]    |-- pcie-controller at 01003000
...

That's how it should look (e.g. with older working U-Boot):

Apalis TK1 # ver

U-Boot 2016.11-2.7.2+g60021a4 (Apr 10 2017 - 07:55:49 +0200)
arm-angstrom-linux-gnueabi-gcc (Linaro GCC 6.2-2016.11) 6.2.1 20161016
GNU ld (GNU Binutils) 2.27.0.20160806
Apalis TK1 # pci enum
Apalis TK1 # dm tree
 Class       Probed   Name
----------------------------------------
 root        [ + ]    root_driver
 pci         [ + ]    |-- pcie-controller at 01003000
 pci         [ + ]    |   `-- pci_0:2.0
 eth         [   ]    |       `-- e1000#0

After enabling CONFIG_OF_LIVE I noticed the following additional issue:

Apalis TK1 # pci enum
ERROR: tegra-pcie: resource "pads" not found
at u-boot.git/drivers/pci/pci_tegra.c:499/tegra_pcie_parse_dt()

Trying to use a vanilla mainline Linux kernel device tree also did not
help:

U-Boot 2017.07-rc1-00150-gf325a89-dirty (Jun 09 2017 - 14:33:21 +0200)

TEGRA124
DRAM:  2 GiB
ERROR: tegra-xusb-padctl: failed to parse "nvidia,lanes" property
at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
tegra/tegra124/../xusb-padctl-
common.c:87/tegra_xusb_padctl_group_parse_dt()
ERROR: tegra-xusb-padctl: failed to parse group usb2
at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
tegra/tegra124/../xusb-padctl-
common.c:237/tegra_xusb_padctl_config_parse_dt()
ERROR: tegra-xusb-padctl: failed to parse entry pads: -22
at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
tegra/tegra124/../xusb-padctl-common.c:270/tegra_xusb_padctl_parse_dt()
ERROR: tegra-xusb-padctl: failed to parse "nvidia,lanes" property
at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
tegra/tegra124/../xusb-padctl-
common.c:87/tegra_xusb_padctl_group_parse_dt()
ERROR: tegra-xusb-padctl: failed to parse group usb2-0
at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
tegra/tegra124/../xusb-padctl-
common.c:237/tegra_xusb_padctl_config_parse_dt()
ERROR: tegra-xusb-padctl: failed to parse entry ports: -22
at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
tegra/tegra124/../xusb-padctl-common.c:270/tegra_xusb_padctl_parse_dt()

Just the order of the SDHCI controllers changed:

Apalis TK1 # mmc dev 2; mmc info
tegra_mmc_send_cmd_bounced: MMC Timeout
    Interrupt status        0x00000001
    Interrupt status enable 0xffff003b
    Interrupt signal enable 0xffff0002
    Present status          0x01fb02f6
mmc_init: -1, time 8066

But PCIe enumeration still fails:

Apalis TK1 # pci enum
ERROR: tegra-pcie: resource "pads" not found
at /run/media/zim/Build/Sources/u-
boot.git/drivers/pci/pci_tegra.c:499/tegra_pcie_parse_dt()

Let me know should you require any additional information.

> Regards,
> Simon

Cheers

Marcel

[U-Boot] [PATCH v2 00/31] dm: tegra: Move nyan-big and beaver to livetree

[Tom Warren]

Simon,

> -----Original Message-----
> From: sjg at google.com [mailto:sjg at google.com] On Behalf Of Simon Glass
> Sent: Thursday, June 08, 2017 8:06 PM
> To: U-Boot Mailing List <u-boot@lists.denx.de>
> Cc: Tom Rini <trini@konsulko.com>; Marcel Ziswiler
> <marcel.ziswiler@toradex.com>; Simon Glass <sjg@chromium.org>; Heiko
> Schocher <hs@denx.de>; Tom Warren <TWarren@nvidia.com>; Jagannadha
> Sutradharudu Teki <jagannadh.teki@gmail.com>; Stephen Warren
> <swarren@wwwdotorg.org>; Jagan Teki <jagan@openedev.com>; Marek Vasut
> <marek.vasut@gmail.com>; Marek Vasut <marex@denx.de>; Anatolij
> Gustschin <agust@denx.de>; Lukasz Majewski <l.majewski@samsung.com>;
> Jerry Van Baren <vanbaren@cideas.com>; Pavel Herrmann
> <morpheus.ibis@gmail.com>; Jaehoon Chung <jh80.chung@samsung.com>;
> Stephen Warren <swarren@nvidia.com>
> Subject: Re: [PATCH v2 00/31] dm: tegra: Move nyan-big and beaver to livetree
> 
> Hi Tom (Warren) / Marcel,
> 
> On 2 June 2017 at 21:03, Simon Glass <sjg@chromium.org> wrote:
> >
> > This moves an entire board to use a live device tree as an example of
> > the impact.
> >
> > Nyan-big was chosen because I can easily and boot U-Boot without any
> > media swapping, etc. Beaver is enabled as well since it failed to boot
> > with serial v1 due to a disabled console node.
> >
> 
> Have you been able to test this v2 series? Some problems were reported with
> v1 and I have found a few more since I discovered my jetson-tk1 board. I'm
> planning to send a v3 soon, but please let me know if you see any issues.
> 
I have neither a nyan-big setup right now, nor an beaver boards. Stephen's test harness should catch any gross build/boot failures if you apply it to a repo he supports (dm, etc.)

Tom
> Regards,
> Simon
--
nvpublic

[U-Boot] [PATCH v2 00/31] dm: tegra: Move nyan-big and beaver to livetree

[Simon Glass]

Hi Marcel,

On 9 June 2017 at 06:39, Marcel Ziswiler <marcel.ziswiler@toradex.com> wrote:
>
> Hi Simon
>
> On Thu, 2017-06-08 at 22:04 -0600, Simon Glass wrote:
> > Hi,
> >
> > On 8 June 2017 at 21:06, Simon Glass <sjg@chromium.org> wrote:
> > > Hi Tom (Warren) / Marcel,
> > >
> > > On 2 June 2017 at 21:03, Simon Glass <sjg@chromium.org> wrote:
> > > >
> > > > This moves an entire board to use a live device tree as an
> > > > example of the
> > > > impact.
> > > >
> > > > Nyan-big was chosen because I can easily and boot U-Boot without
> > > > any
> > > > media swapping, etc. Beaver is enabled as well since it failed to
> > > > boot
> > > > with serial v1 due to a disabled console node.
> > > >
> > >
> > > Have you been able to test this v2 series? Some problems were
> > > reported
> > > with v1 and I have found a few more since I discovered my jetson-
> > > tk1
> > > board. I'm planning to send a v3 soon, but please let me know if
> > > you
> > > see any issues.
> >
> > One more note - I pushed a v3 series to u-boot-dm/livet-working but
> > have not sent the patches. Let me know if you find anything.
>
> While Apalis TK1 now at least boots without any GPIO driver issues I
> still saw the following few glitches:
>
> Apalis TK1 # gpio status -a
> Bank A:
> A0: func
> A1: input: 1 [ ]
> A2: func
> ...
> FF7: func
>
> Bank as3722_:
> as3722_0: unknown
> as3722_1: unknown
> as3722_2: unknown
> as3722_3: unknown
> as3722_4: unknown
> as3722_5: unknown
> as3722_6: unknown
> as3722_7: unknown
>
> Apalis TK1 # mmc dev 0
> tegra_mmc_send_cmd_bounced: MMC Timeout
>     Interrupt status        0x00000001
>     Interrupt status enable 0xffff003b
>     Interrupt signal enable 0xffff0002
>     Present status          0x01fb02f6
> mmc_init: -1, time 8066
>
> While PCIe enumeration does not error out it seems not to detect the
> Ethernet chip:
>
> Apalis TK1 # pci enum
> Apalis TK1 # dm tree
>  Class       Probed   Name
> ----------------------------------------
>  root        [ + ]    root_driver
>  pci         [ + ]    |-- pcie-controller at 01003000
> ...
>
> That's how it should look (e.g. with older working U-Boot):
>
> Apalis TK1 # ver
>
> U-Boot 2016.11-2.7.2+g60021a4 (Apr 10 2017 - 07:55:49 +0200)
> arm-angstrom-linux-gnueabi-gcc (Linaro GCC 6.2-2016.11) 6.2.1 20161016
> GNU ld (GNU Binutils) 2.27.0.20160806
> Apalis TK1 # pci enum
> Apalis TK1 # dm tree
>  Class       Probed   Name
> ----------------------------------------
>  root        [ + ]    root_driver
>  pci         [ + ]    |-- pcie-controller at 01003000
>  pci         [ + ]    |   `-- pci_0:2.0
>  eth         [   ]    |       `-- e1000#0
>
> After enabling CONFIG_OF_LIVE I noticed the following additional issue:
>
> Apalis TK1 # pci enum
> ERROR: tegra-pcie: resource "pads" not found
> at u-boot.git/drivers/pci/pci_tegra.c:499/tegra_pcie_parse_dt()

OK that sounds like a new problem, I'll take a look.

>
> Trying to use a vanilla mainline Linux kernel device tree also did not
> help:
>
> U-Boot 2017.07-rc1-00150-gf325a89-dirty (Jun 09 2017 - 14:33:21 +0200)
>
> TEGRA124
> DRAM:  2 GiB
> ERROR: tegra-xusb-padctl: failed to parse "nvidia,lanes" property
> at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
> tegra/tegra124/../xusb-padctl-
> common.c:87/tegra_xusb_padctl_group_parse_dt()
> ERROR: tegra-xusb-padctl: failed to parse group usb2
> at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
> tegra/tegra124/../xusb-padctl-
> common.c:237/tegra_xusb_padctl_config_parse_dt()
> ERROR: tegra-xusb-padctl: failed to parse entry pads: -22
> at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
> tegra/tegra124/../xusb-padctl-common.c:270/tegra_xusb_padctl_parse_dt()
> ERROR: tegra-xusb-padctl: failed to parse "nvidia,lanes" property
> at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
> tegra/tegra124/../xusb-padctl-
> common.c:87/tegra_xusb_padctl_group_parse_dt()
> ERROR: tegra-xusb-padctl: failed to parse group usb2-0
> at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
> tegra/tegra124/../xusb-padctl-
> common.c:237/tegra_xusb_padctl_config_parse_dt()
> ERROR: tegra-xusb-padctl: failed to parse entry ports: -22
> at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
> tegra/tegra124/../xusb-padctl-common.c:270/tegra_xusb_padctl_parse_dt()

This should be fixed by u-boot-dm/livet-working  - can you please
check you have the latest version?

>
> Just the order of the SDHCI controllers changed:
>
> Apalis TK1 # mmc dev 2; mmc info
> tegra_mmc_send_cmd_bounced: MMC Timeout
>     Interrupt status        0x00000001
>     Interrupt status enable 0xffff003b
>     Interrupt signal enable 0xffff0002
>     Present status          0x01fb02f6
> mmc_init: -1, time 8066

It could be this:

http://patchwork.ozlabs.org/patch/772771/

So the ordering has changed?

>
> But PCIe enumeration still fails:
>
> Apalis TK1 # pci enum
> ERROR: tegra-pcie: resource "pads" not found
> at /run/media/zim/Build/Sources/u-
> boot.git/drivers/pci/pci_tegra.c:499/tegra_pcie_parse_dt()
>
> Let me know should you require any additional information.

Much appreciated.

As above can you please confirm the git hash you tested?

Regards,
Simon

[U-Boot] [PATCH v2 00/31] dm: tegra: Move nyan-big and beaver to livetree

[Simon Glass]

Hi Marcel,

On 9 June 2017 at 10:30, Simon Glass <sjg@chromium.org> wrote:
>
> Hi Marcel,
>
> On 9 June 2017 at 06:39, Marcel Ziswiler <marcel.ziswiler@toradex.com> wrote:
> >
> > Hi Simon
> >
> > On Thu, 2017-06-08 at 22:04 -0600, Simon Glass wrote:
> > > Hi,
> > >
> > > On 8 June 2017 at 21:06, Simon Glass <sjg@chromium.org> wrote:
> > > > Hi Tom (Warren) / Marcel,
> > > >
> > > > On 2 June 2017 at 21:03, Simon Glass <sjg@chromium.org> wrote:
> > > > >
> > > > > This moves an entire board to use a live device tree as an
> > > > > example of the
> > > > > impact.
> > > > >
> > > > > Nyan-big was chosen because I can easily and boot U-Boot without
> > > > > any
> > > > > media swapping, etc. Beaver is enabled as well since it failed to
> > > > > boot
> > > > > with serial v1 due to a disabled console node.
> > > > >
> > > >
> > > > Have you been able to test this v2 series? Some problems were
> > > > reported
> > > > with v1 and I have found a few more since I discovered my jetson-
> > > > tk1
> > > > board. I'm planning to send a v3 soon, but please let me know if
> > > > you
> > > > see any issues.
> > >
> > > One more note - I pushed a v3 series to u-boot-dm/livet-working but
> > > have not sent the patches. Let me know if you find anything.
> >
> > While Apalis TK1 now at least boots without any GPIO driver issues I
> > still saw the following few glitches:
> >
> > Apalis TK1 # gpio status -a
> > Bank A:
> > A0: func
> > A1: input: 1 [ ]
> > A2: func
> > ...
> > FF7: func
> >
> > Bank as3722_:
> > as3722_0: unknown
> > as3722_1: unknown
> > as3722_2: unknown
> > as3722_3: unknown
> > as3722_4: unknown
> > as3722_5: unknown
> > as3722_6: unknown
> > as3722_7: unknown
> >
> > Apalis TK1 # mmc dev 0
> > tegra_mmc_send_cmd_bounced: MMC Timeout
> >     Interrupt status        0x00000001
> >     Interrupt status enable 0xffff003b
> >     Interrupt signal enable 0xffff0002
> >     Present status          0x01fb02f6
> > mmc_init: -1, time 8066
> >
> > While PCIe enumeration does not error out it seems not to detect the
> > Ethernet chip:
> >
> > Apalis TK1 # pci enum
> > Apalis TK1 # dm tree
> >  Class       Probed   Name
> > ----------------------------------------
> >  root        [ + ]    root_driver
> >  pci         [ + ]    |-- pcie-controller at 01003000
> > ...
> >
> > That's how it should look (e.g. with older working U-Boot):
> >
> > Apalis TK1 # ver
> >
> > U-Boot 2016.11-2.7.2+g60021a4 (Apr 10 2017 - 07:55:49 +0200)
> > arm-angstrom-linux-gnueabi-gcc (Linaro GCC 6.2-2016.11) 6.2.1 20161016
> > GNU ld (GNU Binutils) 2.27.0.20160806
> > Apalis TK1 # pci enum
> > Apalis TK1 # dm tree
> >  Class       Probed   Name
> > ----------------------------------------
> >  root        [ + ]    root_driver
> >  pci         [ + ]    |-- pcie-controller at 01003000
> >  pci         [ + ]    |   `-- pci_0:2.0
> >  eth         [   ]    |       `-- e1000#0
> >
> > After enabling CONFIG_OF_LIVE I noticed the following additional issue:
> >
> > Apalis TK1 # pci enum
> > ERROR: tegra-pcie: resource "pads" not found
> > at u-boot.git/drivers/pci/pci_tegra.c:499/tegra_pcie_parse_dt()
>
> OK that sounds like a new problem, I'll take a look.
>
> >
> > Trying to use a vanilla mainline Linux kernel device tree also did not
> > help:
> >
> > U-Boot 2017.07-rc1-00150-gf325a89-dirty (Jun 09 2017 - 14:33:21 +0200)
> >
> > TEGRA124
> > DRAM:  2 GiB
> > ERROR: tegra-xusb-padctl: failed to parse "nvidia,lanes" property
> > at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
> > tegra/tegra124/../xusb-padctl-
> > common.c:87/tegra_xusb_padctl_group_parse_dt()
> > ERROR: tegra-xusb-padctl: failed to parse group usb2
> > at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
> > tegra/tegra124/../xusb-padctl-
> > common.c:237/tegra_xusb_padctl_config_parse_dt()
> > ERROR: tegra-xusb-padctl: failed to parse entry pads: -22
> > at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
> > tegra/tegra124/../xusb-padctl-common.c:270/tegra_xusb_padctl_parse_dt()
> > ERROR: tegra-xusb-padctl: failed to parse "nvidia,lanes" property
> > at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
> > tegra/tegra124/../xusb-padctl-
> > common.c:87/tegra_xusb_padctl_group_parse_dt()
> > ERROR: tegra-xusb-padctl: failed to parse group usb2-0
> > at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
> > tegra/tegra124/../xusb-padctl-
> > common.c:237/tegra_xusb_padctl_config_parse_dt()
> > ERROR: tegra-xusb-padctl: failed to parse entry ports: -22
> > at /run/media/zim/Build/Sources/u-boot.git/arch/arm/mach-
> > tegra/tegra124/../xusb-padctl-common.c:270/tegra_xusb_padctl_parse_dt()
>
> This should be fixed by u-boot-dm/livet-working  - can you please
> check you have the latest version?
>
> >
> > Just the order of the SDHCI controllers changed:
> >
> > Apalis TK1 # mmc dev 2; mmc info
> > tegra_mmc_send_cmd_bounced: MMC Timeout
> >     Interrupt status        0x00000001
> >     Interrupt status enable 0xffff003b
> >     Interrupt signal enable 0xffff0002
> >     Present status          0x01fb02f6
> > mmc_init: -1, time 8066
>
> It could be this:
>
> http://patchwork.ozlabs.org/patch/772771/
>
> So the ordering has changed?
>
> >
> > But PCIe enumeration still fails:
> >
> > Apalis TK1 # pci enum
> > ERROR: tegra-pcie: resource "pads" not found
> > at /run/media/zim/Build/Sources/u-
> > boot.git/drivers/pci/pci_tegra.c:499/tegra_pcie_parse_dt()
> >
> > Let me know should you require any additional information.
>
> Much appreciated.
>
> As above can you please confirm the git hash you tested?

I found the tegra's PCI was not ported to livetree and also there was
a bug in the PCI uclass (which suggests that the PCI test coverage is
not so great).

I've pushed a new version to u-boot-dm/livet-working and will send v3
patches if they pass buildman.

My tegra-TK1 PCI does not work. I think it is because I accidentally
corrupted the PMIC register values at one point. Is there a way to
restore it?

Regards,
Simon