[RFC PATCH 01/17] sunxi: remove CONFIG_SATAPWR

[Andre Przywara <andre.przywara@arm.com>]

The CONFIG_SATAPWR Kconfig symbol was used to point to a GPIO that
enables the power for a SATA harddisk.
In the DT this is described with the target-supply property in the AHCI
DT node, pointing to a (GPIO controlled) regulator. Since we need SATA
only in U-Boot proper, and use a DM driver for AHCI there, we should use
the DT instead of hardcoding this.

Add code to the sunxi AHCI driver to check the DT for that regulator and
enable it, at probe time. Then drop the current code from board.c, which
was doing that job before.
This allows us to remove the SATAPWR Kconfig definition and the
respective values from the defconfigs.
We also select the generic fixed regulator driver, which handles those
GPIO controlled regulators.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
 arch/arm/Kconfig                             |  2 ++
 arch/arm/mach-sunxi/Kconfig                  |  8 --------
 board/sunxi/board.c                          | 14 --------------
 configs/A10-OLinuXino-Lime_defconfig         |  1 -
 configs/A20-OLinuXino-Lime2-eMMC_defconfig   |  1 -
 configs/A20-OLinuXino-Lime2_defconfig        |  1 -
 configs/A20-OLinuXino-Lime_defconfig         |  1 -
 configs/A20-OLinuXino_MICRO-eMMC_defconfig   |  1 -
 configs/A20-OLinuXino_MICRO_defconfig        |  1 -
 configs/A20-Olimex-SOM-EVB_defconfig         |  1 -
 configs/A20-Olimex-SOM204-EVB-eMMC_defconfig |  1 -
 configs/A20-Olimex-SOM204-EVB_defconfig      |  1 -
 configs/Cubieboard2_defconfig                |  1 -
 configs/Cubieboard_defconfig                 |  1 -
 configs/Cubietruck_defconfig                 |  1 -
 configs/Itead_Ibox_A20_defconfig             |  1 -
 configs/Lamobo_R1_defconfig                  |  1 -
 configs/Linksprite_pcDuino3_Nano_defconfig   |  1 -
 configs/Linksprite_pcDuino3_defconfig        |  1 -
 configs/Sinovoip_BPI_M3_defconfig            |  1 -
 configs/orangepi_plus_defconfig              |  1 -
 drivers/ata/ahci_sunxi.c                     |  9 +++++++++
 22 files changed, 11 insertions(+), 40 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index f95ed71b246..3623520b353 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1148,6 +1148,8 @@ config ARCH_SUNXI
 	select DM_SPI_FLASH if SPI
 	select DM_KEYBOARD
 	select DM_MMC if MMC
+	select DM_REGULATOR
+	select DM_REGULATOR_FIXED
 	select DM_SCSI if SCSI
 	select DM_SERIAL
 	select GPIO_EXTRA_HEADER
diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
index dbe6005daab..5f95fe72d08 100644
--- a/arch/arm/mach-sunxi/Kconfig
+++ b/arch/arm/mach-sunxi/Kconfig
@@ -985,14 +985,6 @@ config VIDEO_LCD_TL059WV5C0
 
 endchoice
 
-config SATAPWR
-	string "SATA power pin"
-	default ""
-	help
-	  Set the pins used to power the SATA. This takes a string in the
-	  format understood by sunxi_name_to_gpio, e.g. PH1 for pin 1 of
-	  port H.
-
 config GMAC_TX_DELAY
 	int "GMAC Transmit Clock Delay Chain"
 	default 0
diff --git a/board/sunxi/board.c b/board/sunxi/board.c
index 21a2407e062..ec35a7f06bd 100644
--- a/board/sunxi/board.c
+++ b/board/sunxi/board.c
@@ -229,20 +229,6 @@ int board_init(void)
 		return ret;
 
 	/* strcmp() would look better, but doesn't get optimised away. */
-	if (CONFIG_SATAPWR[0]) {
-		satapwr_pin = sunxi_name_to_gpio(CONFIG_SATAPWR);
-		if (satapwr_pin >= 0) {
-			gpio_request(satapwr_pin, "satapwr");
-			gpio_direction_output(satapwr_pin, 1);
-
-			/*
-			 * Give the attached SATA device time to power-up
-			 * to avoid link timeouts
-			 */
-			mdelay(500);
-		}
-	}
-
 	if (CONFIG_MACPWR[0]) {
 		macpwr_pin = sunxi_name_to_gpio(CONFIG_MACPWR);
 		if (macpwr_pin >= 0) {
diff --git a/configs/A10-OLinuXino-Lime_defconfig b/configs/A10-OLinuXino-Lime_defconfig
index ee92ac45fbc..f5d98607003 100644
--- a/configs/A10-OLinuXino-Lime_defconfig
+++ b/configs/A10-OLinuXino-Lime_defconfig
@@ -8,7 +8,6 @@ CONFIG_DRAM_EMR1=4
 CONFIG_SYS_CLK_FREQ=912000000
 CONFIG_MMC0_CD_PIN="PH1"
 CONFIG_I2C1_ENABLE=y
-CONFIG_SATAPWR="PC3"
 CONFIG_AHCI=y
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_SYS_MONITOR_LEN=786432
diff --git a/configs/A20-OLinuXino-Lime2-eMMC_defconfig b/configs/A20-OLinuXino-Lime2-eMMC_defconfig
index 8ce10d6f75b..a8e949a3971 100644
--- a/configs/A20-OLinuXino-Lime2-eMMC_defconfig
+++ b/configs/A20-OLinuXino-Lime2-eMMC_defconfig
@@ -9,7 +9,6 @@ CONFIG_MMC_SUNXI_SLOT_EXTRA=2
 CONFIG_USB0_VBUS_PIN="PC17"
 CONFIG_USB0_VBUS_DET="PH5"
 CONFIG_I2C1_ENABLE=y
-CONFIG_SATAPWR="PC3"
 CONFIG_SPL_SPI_SUNXI=y
 CONFIG_AHCI=y
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
diff --git a/configs/A20-OLinuXino-Lime2_defconfig b/configs/A20-OLinuXino-Lime2_defconfig
index e38110b030b..c143cc17314 100644
--- a/configs/A20-OLinuXino-Lime2_defconfig
+++ b/configs/A20-OLinuXino-Lime2_defconfig
@@ -8,7 +8,6 @@ CONFIG_MMC0_CD_PIN="PH1"
 CONFIG_USB0_VBUS_PIN="PC17"
 CONFIG_USB0_VBUS_DET="PH5"
 CONFIG_I2C1_ENABLE=y
-CONFIG_SATAPWR="PC3"
 CONFIG_AHCI=y
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_SYS_MONITOR_LEN=786432
diff --git a/configs/A20-OLinuXino-Lime_defconfig b/configs/A20-OLinuXino-Lime_defconfig
index 4e4804748ef..b6546c26d04 100644
--- a/configs/A20-OLinuXino-Lime_defconfig
+++ b/configs/A20-OLinuXino-Lime_defconfig
@@ -6,7 +6,6 @@ CONFIG_MACH_SUN7I=y
 CONFIG_DRAM_CLK=384
 CONFIG_MMC0_CD_PIN="PH1"
 CONFIG_I2C1_ENABLE=y
-CONFIG_SATAPWR="PC3"
 CONFIG_AHCI=y
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_SYS_MONITOR_LEN=786432
diff --git a/configs/A20-OLinuXino_MICRO-eMMC_defconfig b/configs/A20-OLinuXino_MICRO-eMMC_defconfig
index 113d54dc0b9..95860ef8fa1 100644
--- a/configs/A20-OLinuXino_MICRO-eMMC_defconfig
+++ b/configs/A20-OLinuXino_MICRO-eMMC_defconfig
@@ -8,7 +8,6 @@ CONFIG_MMC0_CD_PIN="PH1"
 CONFIG_MMC_SUNXI_SLOT_EXTRA=2
 CONFIG_I2C1_ENABLE=y
 CONFIG_VIDEO_VGA=y
-CONFIG_SATAPWR="PB8"
 CONFIG_AHCI=y
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_SYS_MONITOR_LEN=786432
diff --git a/configs/A20-OLinuXino_MICRO_defconfig b/configs/A20-OLinuXino_MICRO_defconfig
index 1e1c30ef303..32ca51554b1 100644
--- a/configs/A20-OLinuXino_MICRO_defconfig
+++ b/configs/A20-OLinuXino_MICRO_defconfig
@@ -9,7 +9,6 @@ CONFIG_MMC3_CD_PIN="PH11"
 CONFIG_MMC_SUNXI_SLOT_EXTRA=3
 CONFIG_I2C1_ENABLE=y
 CONFIG_VIDEO_VGA=y
-CONFIG_SATAPWR="PB8"
 CONFIG_AHCI=y
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_SYS_MONITOR_LEN=786432
diff --git a/configs/A20-Olimex-SOM-EVB_defconfig b/configs/A20-Olimex-SOM-EVB_defconfig
index e76e6dd0932..1364c42d865 100644
--- a/configs/A20-Olimex-SOM-EVB_defconfig
+++ b/configs/A20-Olimex-SOM-EVB_defconfig
@@ -9,7 +9,6 @@ CONFIG_MMC3_CD_PIN="PH0"
 CONFIG_MMC_SUNXI_SLOT_EXTRA=3
 CONFIG_USB0_VBUS_PIN="PB9"
 CONFIG_USB0_VBUS_DET="PH5"
-CONFIG_SATAPWR="PC3"
 CONFIG_AHCI=y
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_SYS_MONITOR_LEN=786432
diff --git a/configs/A20-Olimex-SOM204-EVB-eMMC_defconfig b/configs/A20-Olimex-SOM204-EVB-eMMC_defconfig
index 1d3cf311952..77abe5c27ea 100644
--- a/configs/A20-Olimex-SOM204-EVB-eMMC_defconfig
+++ b/configs/A20-Olimex-SOM204-EVB-eMMC_defconfig
@@ -9,7 +9,6 @@ CONFIG_MMC_SUNXI_SLOT_EXTRA=2
 CONFIG_USB0_VBUS_PIN="PC17"
 CONFIG_USB0_VBUS_DET="PH5"
 CONFIG_I2C1_ENABLE=y
-CONFIG_SATAPWR="PC3"
 CONFIG_GMAC_TX_DELAY=4
 CONFIG_AHCI=y
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
diff --git a/configs/A20-Olimex-SOM204-EVB_defconfig b/configs/A20-Olimex-SOM204-EVB_defconfig
index 97d0b9cee75..19065fb18d0 100644
--- a/configs/A20-Olimex-SOM204-EVB_defconfig
+++ b/configs/A20-Olimex-SOM204-EVB_defconfig
@@ -8,7 +8,6 @@ CONFIG_MMC0_CD_PIN="PH1"
 CONFIG_USB0_VBUS_PIN="PC17"
 CONFIG_USB0_VBUS_DET="PH5"
 CONFIG_I2C1_ENABLE=y
-CONFIG_SATAPWR="PC3"
 CONFIG_GMAC_TX_DELAY=4
 CONFIG_AHCI=y
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
diff --git a/configs/Cubieboard2_defconfig b/configs/Cubieboard2_defconfig
index 2c1b3d27aa0..40608498f38 100644
--- a/configs/Cubieboard2_defconfig
+++ b/configs/Cubieboard2_defconfig
@@ -5,7 +5,6 @@ CONFIG_SPL=y
 CONFIG_MACH_SUN7I=y
 CONFIG_DRAM_CLK=480
 CONFIG_MMC0_CD_PIN="PH1"
-CONFIG_SATAPWR="PB8"
 CONFIG_AHCI=y
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_SYS_MONITOR_LEN=786432
diff --git a/configs/Cubieboard_defconfig b/configs/Cubieboard_defconfig
index 008167509d3..9de9ee07568 100644
--- a/configs/Cubieboard_defconfig
+++ b/configs/Cubieboard_defconfig
@@ -5,7 +5,6 @@ CONFIG_SPL=y
 CONFIG_MACH_SUN4I=y
 CONFIG_DRAM_CLK=480
 CONFIG_MMC0_CD_PIN="PH1"
-CONFIG_SATAPWR="PB8"
 CONFIG_AHCI=y
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_SYS_MONITOR_LEN=786432
diff --git a/configs/Cubietruck_defconfig b/configs/Cubietruck_defconfig
index a4246343706..86588cdd5e2 100644
--- a/configs/Cubietruck_defconfig
+++ b/configs/Cubietruck_defconfig
@@ -9,7 +9,6 @@ CONFIG_USB0_VBUS_PIN="PH17"
 CONFIG_USB0_VBUS_DET="PH22"
 CONFIG_USB0_ID_DET="PH19"
 CONFIG_VIDEO_VGA=y
-CONFIG_SATAPWR="PH12"
 CONFIG_GMAC_TX_DELAY=1
 CONFIG_AHCI=y
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
diff --git a/configs/Itead_Ibox_A20_defconfig b/configs/Itead_Ibox_A20_defconfig
index 6474c9e90a7..b52ce776251 100644
--- a/configs/Itead_Ibox_A20_defconfig
+++ b/configs/Itead_Ibox_A20_defconfig
@@ -5,7 +5,6 @@ CONFIG_SPL=y
 CONFIG_MACH_SUN7I=y
 CONFIG_DRAM_CLK=480
 CONFIG_MMC0_CD_PIN="PH1"
-CONFIG_SATAPWR="PB8"
 CONFIG_AHCI=y
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_SYS_MONITOR_LEN=786432
diff --git a/configs/Lamobo_R1_defconfig b/configs/Lamobo_R1_defconfig
index c943fd3c06e..d51601ff10f 100644
--- a/configs/Lamobo_R1_defconfig
+++ b/configs/Lamobo_R1_defconfig
@@ -6,7 +6,6 @@ CONFIG_MACH_SUN7I=y
 CONFIG_DRAM_CLK=432
 CONFIG_MACPWR="PH23"
 CONFIG_MMC0_CD_PIN="PH10"
-CONFIG_SATAPWR="PB3"
 CONFIG_GMAC_TX_DELAY=4
 CONFIG_AHCI=y
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
diff --git a/configs/Linksprite_pcDuino3_Nano_defconfig b/configs/Linksprite_pcDuino3_Nano_defconfig
index 469dcc11f12..773f4a9e318 100644
--- a/configs/Linksprite_pcDuino3_Nano_defconfig
+++ b/configs/Linksprite_pcDuino3_Nano_defconfig
@@ -6,7 +6,6 @@ CONFIG_MACH_SUN7I=y
 CONFIG_DRAM_CLK=408
 CONFIG_DRAM_ZQ=122
 CONFIG_USB1_VBUS_PIN="PH11"
-CONFIG_SATAPWR="PH2"
 CONFIG_GMAC_TX_DELAY=3
 CONFIG_AHCI=y
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
diff --git a/configs/Linksprite_pcDuino3_defconfig b/configs/Linksprite_pcDuino3_defconfig
index c4a3f2db963..5b454b23864 100644
--- a/configs/Linksprite_pcDuino3_defconfig
+++ b/configs/Linksprite_pcDuino3_defconfig
@@ -5,7 +5,6 @@ CONFIG_SPL=y
 CONFIG_MACH_SUN7I=y
 CONFIG_DRAM_CLK=480
 CONFIG_DRAM_ZQ=122
-CONFIG_SATAPWR="PH2"
 CONFIG_AHCI=y
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_SYS_MONITOR_LEN=786432
diff --git a/configs/Sinovoip_BPI_M3_defconfig b/configs/Sinovoip_BPI_M3_defconfig
index ab70eff68eb..bcc8b1fba98 100644
--- a/configs/Sinovoip_BPI_M3_defconfig
+++ b/configs/Sinovoip_BPI_M3_defconfig
@@ -13,7 +13,6 @@ CONFIG_USB0_VBUS_DET="AXP0-VBUS-DETECT"
 CONFIG_USB0_ID_DET="PH11"
 CONFIG_USB1_VBUS_PIN="PD24"
 CONFIG_AXP_GPIO=y
-CONFIG_SATAPWR="PD25"
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_SYS_MONITOR_LEN=786432
 CONFIG_CONSOLE_MUX=y
diff --git a/configs/orangepi_plus_defconfig b/configs/orangepi_plus_defconfig
index 5c7f0731d90..f4ce4851d7c 100644
--- a/configs/orangepi_plus_defconfig
+++ b/configs/orangepi_plus_defconfig
@@ -7,7 +7,6 @@ CONFIG_DRAM_CLK=672
 CONFIG_MACPWR="PD6"
 CONFIG_MMC_SUNXI_SLOT_EXTRA=2
 CONFIG_USB1_VBUS_PIN="PG13"
-CONFIG_SATAPWR="PG11"
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_SYS_MONITOR_LEN=786432
 CONFIG_SPL_I2C=y
diff --git a/drivers/ata/ahci_sunxi.c b/drivers/ata/ahci_sunxi.c
index 94a3379c532..9064774e661 100644
--- a/drivers/ata/ahci_sunxi.c
+++ b/drivers/ata/ahci_sunxi.c
@@ -7,6 +7,7 @@
 #include <asm/io.h>
 #include <asm/gpio.h>
 #include <linux/delay.h>
+#include <power/regulator.h>
 
 #define AHCI_PHYCS0R 0x00c0
 #define AHCI_PHYCS1R 0x00c4
@@ -74,6 +75,7 @@ static int sunxi_ahci_phy_init(u8 *reg_base)
 
 static int sunxi_sata_probe(struct udevice *dev)
 {
+	struct udevice *reg_dev;
 	ulong base;
 	u8 *reg;
 	int ret;
@@ -89,6 +91,13 @@ static int sunxi_sata_probe(struct udevice *dev)
 		debug("%s: Failed to init phy (err=%d)\n", __func__, ret);
 		return ret;
 	}
+
+	ret = device_get_supply_regulator(dev, "target-supply", &reg_dev);
+	if (ret == 0) {
+		regulator_set_enable(reg_dev, true);
+		mdelay(500);
+	}
+
 	ret = ahci_probe_scsi(dev, base);
 	if (ret) {
 		debug("%s: Failed to probe (err=%d)\n", __func__, ret);
-- 
2.35.5