From 3709d323085853dc537711154004ba8704cefb9c Mon Sep 17 00:00:00 2001 From: Nishanth Menon Date: Mon, 29 Jul 2013 12:03:01 -0500 Subject: ARM: dts: omap5-uevm: document regulator signals used on the actual board MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit e00c27ef3b4c23e39d0a77b7c8e5be44c28001c7 (ARM: dts: OMAP5: Add Palmas MFD node and regulator nodes) introduced regulator entries for OMAP5uEVM. However, currently we use the Palmas regulator names which is used for different purposes on uEVM. Document the same based on 750-2628-XXX boards - which is meant to be supported by this dts. Reported-by: Marc Jüttner Signed-off-by: Nishanth Menon Acked-by: J Keerthy Acked-by: Benoit Cousson Signed-off-by: Tony Lindgren --- arch/arm/boot/dts/omap5-uevm.dts | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'arch') diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts index 08b72678abf..b430b8f884b 100644 --- a/arch/arm/boot/dts/omap5-uevm.dts +++ b/arch/arm/boot/dts/omap5-uevm.dts @@ -282,6 +282,7 @@ regulators { smps123_reg: smps123 { + /* VDD_OPP_MPU */ regulator-name = "smps123"; regulator-min-microvolt = < 600000>; regulator-max-microvolt = <1500000>; @@ -290,6 +291,7 @@ }; smps45_reg: smps45 { + /* VDD_OPP_MM */ regulator-name = "smps45"; regulator-min-microvolt = < 600000>; regulator-max-microvolt = <1310000>; @@ -298,6 +300,7 @@ }; smps6_reg: smps6 { + /* VDD_DDR3 - over VDD_SMPS6 */ regulator-name = "smps6"; regulator-min-microvolt = <1200000>; regulator-max-microvolt = <1200000>; @@ -306,6 +309,7 @@ }; smps7_reg: smps7 { + /* VDDS_1v8_OMAP over VDDS_1v8_MAIN */ regulator-name = "smps7"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; @@ -314,6 +318,7 @@ }; smps8_reg: smps8 { + /* VDD_OPP_CORE */ regulator-name = "smps8"; regulator-min-microvolt = < 600000>; regulator-max-microvolt = <1310000>; @@ -322,6 +327,7 @@ }; smps9_reg: smps9 { + /* VDDA_2v1_AUD over VDD_2v1 */ regulator-name = "smps9"; regulator-min-microvolt = <2100000>; regulator-max-microvolt = <2100000>; @@ -331,6 +337,7 @@ }; smps10_reg: smps10 { + /* VBUS_5V_OTG */ regulator-name = "smps10"; regulator-min-microvolt = <5000000>; regulator-max-microvolt = <5000000>; @@ -339,6 +346,7 @@ }; ldo1_reg: ldo1 { + /* VDDAPHY_CAM: vdda_csiport */ regulator-name = "ldo1"; regulator-min-microvolt = <2800000>; regulator-max-microvolt = <2800000>; @@ -347,6 +355,7 @@ }; ldo2_reg: ldo2 { + /* VCC_2V8_DISP: Does not go anywhere */ regulator-name = "ldo2"; regulator-min-microvolt = <2900000>; regulator-max-microvolt = <2900000>; @@ -355,6 +364,7 @@ }; ldo3_reg: ldo3 { + /* VDDAPHY_MDM: vdda_lli */ regulator-name = "ldo3"; regulator-min-microvolt = <3000000>; regulator-max-microvolt = <3000000>; @@ -363,6 +373,7 @@ }; ldo4_reg: ldo4 { + /* VDDAPHY_DISP: vdda_dsiport/hdmi */ regulator-name = "ldo4"; regulator-min-microvolt = <2200000>; regulator-max-microvolt = <2200000>; @@ -371,6 +382,7 @@ }; ldo5_reg: ldo5 { + /* VDDA_1V8_PHY: usb/sata/hdmi.. */ regulator-name = "ldo5"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; @@ -379,6 +391,7 @@ }; ldo6_reg: ldo6 { + /* VDDS_1V2_WKUP: hsic/ldo_emu_wkup */ regulator-name = "ldo6"; regulator-min-microvolt = <1500000>; regulator-max-microvolt = <1500000>; @@ -387,6 +400,7 @@ }; ldo7_reg: ldo7 { + /* VDD_VPP: vpp1 */ regulator-name = "ldo7"; regulator-min-microvolt = <1500000>; regulator-max-microvolt = <1500000>; @@ -395,6 +409,7 @@ }; ldo8_reg: ldo8 { + /* VDD_3v0: Does not go anywhere */ regulator-name = "ldo8"; regulator-min-microvolt = <1500000>; regulator-max-microvolt = <1500000>; @@ -403,6 +418,7 @@ }; ldo9_reg: ldo9 { + /* VCC_DV_SDIO: vdds_sdcard */ regulator-name = "ldo9"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; @@ -411,6 +427,7 @@ }; ldoln_reg: ldoln { + /* VDDA_1v8_REF: vdds_osc/mm_l4per.. */ regulator-name = "ldoln"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; @@ -419,6 +436,7 @@ }; ldousb_reg: ldousb { + /* VDDA_3V_USB: VDDA_USBHS33 */ regulator-name = "ldousb"; regulator-min-microvolt = <3250000>; regulator-max-microvolt = <3250000>; -- cgit v1.2.3-70-g09d2 From e18235a62a7ea737d0a3f73c76eacaaec6df3dfe Mon Sep 17 00:00:00 2001 From: Nishanth Menon Date: Mon, 29 Jul 2013 12:03:02 -0500 Subject: ARM: dts: omap5-uevm: fix regulator configurations mandatory for SoC MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit e00c27ef3b4c23e39d0a77b7c8e5be44c28001c7 (ARM: dts: OMAP5: Add Palmas MFD node and regulator nodes) introduced regulator entries for OMAP5uEVM. However, The regulator information is based on an older temporary pre-production board variant and does not reflect production board 750-2628-XXX boards. The following fixes are hence mandatory to ensure right voltage is supplied to key OMAP5 SoC voltage rails: - LDO1 supplies VDDAPHY_CAM which is OMAP5's vdda_csiporta/b/c. This can only be supplied at 1.5V or 1.8V and we currently supply 2.8V. To prevent any potential device damage risk, use the specified 1.5V-1.8V supply. Remove 'always-on' and 'boot-on' settings here as it is a 'on need' supply to SoC IP and is not enabled by PMIC by default at boot. - LDO3 supplies Low Latency Interface(LLI) hardware module which is a special hardware to communicate with Modem. However since uEVM is not setup by default for this communication, this should be disabled by default. Further, vdda_lli is supposed to be 1.5V and not 3V. - LDO4 supplies VDDAPHY_DISP which is vdda_dsiporta/c/vdda_hdmi This can only be supplied at 1.5V or 1.8V and we currently supply 2.2V. To prevent any potential device damage risk, use the specified 1.5V-1.8V supply. Remove 'always-on' and 'boot-on' settings here as it is a 'on need' supply to SoC IP and is not enabled by PMIC by default at boot. - LDO6 supplies the board specified VDDS_1V2_WKUP supply going to ldo_emu_wkup/vdds_hsic. To stay within the SoC specification supply 1.2V instead of 1.5V. - LDO7 supplies VDD_VPP which is vpp1. This is currently configured for 1.5V which as per data manual "A pulse width of 1000 ns and an amplitude of 2V is required to program each eFuse bit. Otherwise, VPP1 must not be supplied". So, fix the voltage to 2V. and disable the supply since we have no plans of programming efuse bits - it can only be done once - in factory. Further it is not enabled by default by PMIC so, 'boot-on' must be removed, and the 'always-on' needs to be removed to achieve pulsing if efuse needs to be programmed. - LDO9 supplies the board specified vdds_sdcard supply going within SoC specification of 1.8V or 3.0V. Further the supply is controlled by switch enabled by REGEN3. So, introduce REGEN3 and map sdcard slot to be powered by LDO9. Remove 'always-on' allowing the LDO to be disabled on need basis. Reported-by: Marc Jüttner Signed-off-by: Nishanth Menon Acked-by: J Keerthy Acked-by: Benoit Cousson Signed-off-by: Tony Lindgren --- arch/arm/boot/dts/omap5-uevm.dts | 43 +++++++++++++++++++++------------------- 1 file changed, 23 insertions(+), 20 deletions(-) (limited to 'arch') diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts index b430b8f884b..247c03c0d73 100644 --- a/arch/arm/boot/dts/omap5-uevm.dts +++ b/arch/arm/boot/dts/omap5-uevm.dts @@ -235,7 +235,7 @@ }; &mmc1 { - vmmc-supply = <&vmmcsd_fixed>; + vmmc-supply = <&ldo9_reg>; bus-width = <4>; }; @@ -348,10 +348,8 @@ ldo1_reg: ldo1 { /* VDDAPHY_CAM: vdda_csiport */ regulator-name = "ldo1"; - regulator-min-microvolt = <2800000>; - regulator-max-microvolt = <2800000>; - regulator-always-on; - regulator-boot-on; + regulator-min-microvolt = <1500000>; + regulator-max-microvolt = <1800000>; }; ldo2_reg: ldo2 { @@ -366,19 +364,18 @@ ldo3_reg: ldo3 { /* VDDAPHY_MDM: vdda_lli */ regulator-name = "ldo3"; - regulator-min-microvolt = <3000000>; - regulator-max-microvolt = <3000000>; - regulator-always-on; + regulator-min-microvolt = <1500000>; + regulator-max-microvolt = <1500000>; regulator-boot-on; + /* Only if Modem is used */ + status = "disabled"; }; ldo4_reg: ldo4 { /* VDDAPHY_DISP: vdda_dsiport/hdmi */ regulator-name = "ldo4"; - regulator-min-microvolt = <2200000>; - regulator-max-microvolt = <2200000>; - regulator-always-on; - regulator-boot-on; + regulator-min-microvolt = <1500000>; + regulator-max-microvolt = <1800000>; }; ldo5_reg: ldo5 { @@ -393,8 +390,8 @@ ldo6_reg: ldo6 { /* VDDS_1V2_WKUP: hsic/ldo_emu_wkup */ regulator-name = "ldo6"; - regulator-min-microvolt = <1500000>; - regulator-max-microvolt = <1500000>; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; regulator-always-on; regulator-boot-on; }; @@ -402,10 +399,10 @@ ldo7_reg: ldo7 { /* VDD_VPP: vpp1 */ regulator-name = "ldo7"; - regulator-min-microvolt = <1500000>; - regulator-max-microvolt = <1500000>; - regulator-always-on; - regulator-boot-on; + regulator-min-microvolt = <2000000>; + regulator-max-microvolt = <2000000>; + /* Only for efuse reprograming! */ + status = "disabled"; }; ldo8_reg: ldo8 { @@ -421,8 +418,7 @@ /* VCC_DV_SDIO: vdds_sdcard */ regulator-name = "ldo9"; regulator-min-microvolt = <1800000>; - regulator-max-microvolt = <3300000>; - regulator-always-on; + regulator-max-microvolt = <3000000>; regulator-boot-on; }; @@ -443,6 +439,13 @@ regulator-always-on; regulator-boot-on; }; + + regen3_reg: regen3 { + /* REGEN3 controls LDO9 supply to card */ + regulator-name = "regen3"; + regulator-always-on; + regulator-boot-on; + }; }; }; }; -- cgit v1.2.3-70-g09d2 From bd3c5544a1e98a25d2d24c98779092e0f84373f7 Mon Sep 17 00:00:00 2001 From: Nishanth Menon Date: Mon, 29 Jul 2013 12:03:03 -0500 Subject: ARM: dts: omap5-uevm: update optional/unused regulator configurations MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit e00c27ef3b4c23e39d0a77b7c8e5be44c28001c7 (ARM: dts: OMAP5: Add Palmas MFD node and regulator nodes) introduced regulator entries for OMAP5uEVM. However, The regulator information is based on an older temporary pre-production board variant and does not reflect production board 750-2628-XXX boards. The following optional/unused regulators can be updated: - SMPS9 supplies TWL6040 over VDDA_2v1_AUD. This regulator needs to be enabled only when audio is active. Since it does not come active by default, it does not require "always-on" or "boot-on". - LDO2 and LDO8 do not go to any peripheral or connector on the board. Further, these unused regulators should have been 2.8V for LDO2 and 3.0V for LDO8. Mark these LDOs as disabled in the dts until needed. Reported-by: Marc Jüttner Signed-off-by: Nishanth Menon Acked-by: J Keerthy Acked-by: Benoit Cousson Signed-off-by: Tony Lindgren --- arch/arm/boot/dts/omap5-uevm.dts | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) (limited to 'arch') diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts index 247c03c0d73..65d7b601651 100644 --- a/arch/arm/boot/dts/omap5-uevm.dts +++ b/arch/arm/boot/dts/omap5-uevm.dts @@ -331,8 +331,6 @@ regulator-name = "smps9"; regulator-min-microvolt = <2100000>; regulator-max-microvolt = <2100000>; - regulator-always-on; - regulator-boot-on; ti,smps-range = <0x80>; }; @@ -355,10 +353,10 @@ ldo2_reg: ldo2 { /* VCC_2V8_DISP: Does not go anywhere */ regulator-name = "ldo2"; - regulator-min-microvolt = <2900000>; - regulator-max-microvolt = <2900000>; - regulator-always-on; - regulator-boot-on; + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; + /* Unused */ + status = "disabled"; }; ldo3_reg: ldo3 { @@ -408,10 +406,11 @@ ldo8_reg: ldo8 { /* VDD_3v0: Does not go anywhere */ regulator-name = "ldo8"; - regulator-min-microvolt = <1500000>; - regulator-max-microvolt = <1500000>; - regulator-always-on; + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3000000>; regulator-boot-on; + /* Unused */ + status = "disabled"; }; ldo9_reg: ldo9 { -- cgit v1.2.3-70-g09d2