February 2018 - U-Boot

[U-Boot] [PATCH v3 00/20] Bring NAND support to Nintendo NES Classic
by Miquel Raynal 07 Jul '21

07 Jul '21

Hello, This series first adds fixes and enhancements to sunxi NAND drivers (SPL and U-Boot). Once this is done, the SPL NAND driver is converted to use PIO instead of DMA with the goal to support all SoCs with this IP without the need for DMA-related code. Finally, NAND support is added to Nintendo NES Classic through Kconfig and DT additions. Thanks, Miquèl Changes since v2: ================= - Added Boris and Maxime Acked-by tags. - Removed extra space in nand_reset_column() - Fixed the useless wait period on failure in nand_change_column(). - Changed the title "sunxi: allow NAND support to be compiled for..." (removed the "in SPL" precision which is wrong). - Enbraced the deassertion of the reset line by #if statements about the SoCs in use. Wolfgang Denk made a comment on my proposal but I could not find a better solution, so I kept it for now. - s/alwinner,[pin,functions]/[pin,functions]/ in the DT. - Change Alwinner-specific parts in the SPL to generic sentences. Changes since v1: ================= All: ---- - Enhance all commit messages. - Rebased on top of master branch (I should have done that earlier but I forgot I was on an old revision). Fix binman_sym output check --------------------------- - SPL seems to be broken for a few weeks when using raw NAND, fix it by changing the error condition. Fix strength ------------ - Add comment explaining the added line and moved the line for clarification on why it is needed. - Add forgotten Boris' Suggested-by tag. Fix second case of modulo by zero error ---------------------------------------- - Added a reference to the first occurence of this issue. Allow SPL to be compiled for sun8i platforms -------------------------------------------- - This commit is not about compiling the SPL, but the NAND support in the SPL, as corrected by Maxime. Enhancements and cleaning ------------------------- - Patch split into several logical chunks, as requested. - Removed useless udelay(1), that was added for debugging purpose. - Introduced the nand_exec_cmd() helper to mutualize code one step further. - Add an udelay(1) after changing the column to respect the minimum tCCS delay (Change Column Setup time). - Canceled moving to global scope the ecc_strength array. Use PIO instead of DMA ---------------------- - Change commit message/title. - Cancel removing NFC related definitions: they can be useful as the this IP is quite under-documented. - Merge nand_reset_column and nand_change_column (in another patch). - Moved the copy of the data after the check of the ECC status. - ECC chunks are read manually, return if the first chunk is empty only (needed for configuration research), otherwise it should not be treated as an error. Add NAND node to sun8i ---------------------- - U-Boot master branch already has this node, remove the patch. Enable NAND on NES classic -------------------------- - Change the DT cells size from 2 to 1. Add NAND support for NES classic -------------------------------- - Split in several patches, moving SPL_NAND_SUPPORT and NAND_SUNXI out of the defconfig files (NES and CHIP pro) to be automatically selected depending on NAND_SUNXI and ARCH_SUNXI. - Moved the NAND parameters to Kconfig (only for SUNXI because the tool did not work as expected, maybe due to some definitions that are not "numbers" but multiplications and sometimes use other definitions (NAND page size, 2K_SZ, etc). Miquel Raynal (20): spl: fix binman_sym output check mtd: nand: sunxi: fix ECC strength choice spl: nand: sunxi: fix second case of modulo by zero error spl: nand: sunxi: fix typo on register name spl: nand: sunxi: introduce the nand_wait_int() helper spl: nand: sunxi: introduce the nand_wait_cmd_fifo_empty() helper spl: nand: sunxi: add missing status clear spl: nand: sunxi: create an helper to handle command execution spl: nand: sunxi: ensure enough time has passed after changing the column spl: nand: sunxi: make the reset column helper more generic sunxi: spl: deassert the NAND controller reset line spl: nand: sunxi: declare the ecc_bytes array globally spl: nand: sunxi: use PIO instead of DMA sunxi: spl: remove DMA related settings of the NAND controller sunxi: allow NAND support to be compiled for sun8i platforms sunxi: dts: enable NAND on NES classic sunxi: automatically select SPL_NAND_SUPPORT in Kconfig sunxi: make NAND_SUNXI use ARCH_SUNXI as default in Kconfig sunxi: move the NAND parameters to Kconfig configs: add NAND support for NES Classic arch/arm/dts/sun8i-a23-a33.dtsi | 17 ++ .../dts/sun8i-r16-nintendo-nes-classic-edition.dts | 14 ++ arch/arm/include/asm/arch-sunxi/clock_sun6i.h | 6 + board/sunxi/board.c | 7 +- common/spl/spl.c | 10 +- configs/CHIP_pro_defconfig | 6 +- configs/Nintendo_NES_Classic_Edition_defconfig | 4 + drivers/mtd/nand/Kconfig | 26 ++- drivers/mtd/nand/sunxi_nand.c | 8 +- drivers/mtd/nand/sunxi_nand_spl.c | 242 ++++++++++----------- 10 files changed, 208 insertions(+), 132 deletions(-) -- 2.14.1

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[U-Boot] Starting u-boot in USB otg mode
by rivael_il 27 Feb '20

27 Feb '20

Hello u-booters! I want to load u-boot-sunxi-with-spl.bin and make it operate the USB in otg mode. (Where the host can still be connected to the board). How can I achieve this? (I have attempted to use: "usb0:dr_mode=otg,phy_type=utmi\0" without success). Thank you, Michael

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[U-Boot] [PATCH 0/10] x86: Add generic VESA video driver
by Simon Glass 01 Aug '19

01 Aug '19

This series introduces a generic VESA video driver and adjusts the generic PCI ROM support to support it. It also fixes up some problems which prevent this from working on PowerPC at present. It is now possible to use VESA graphics: - On PowerPC, using the x86 emulator - On x86, using either the x86 emulator or native code execution As it turns out, on the only platform I have tested (link), the x86 emulator is only slightly slower that native code execution (200ms difference). Still, we may as well leave this feature in there. VGA ROMs are a very old technology but they are still used by modern platforms, including at least link and some Atom designs. Simon Glass (10): bios_emulator: Fix an #ifdef typo in the header file x86: Correct endianness isues in pci_rom x86: Support ROMs on other archs bios_emulator: Don't display error when emulator terminates bios_emulator: Add some VESA interface debugging x86: pci: Don't stop when we get a vendor/device mismatch x86: Add a VESA video driver x86: Drop the x86_fb driver x86: Access the VGA ROM when needed RFC: Test code for glacier PCI video support arch/x86/include/asm/u-boot-x86.h | 2 + drivers/bios_emulator/atibios.c | 161 +++++++++++++++++++++++---- drivers/bios_emulator/include/x86emu/debug.h | 2 +- drivers/bios_emulator/x86emu/ops.c | 2 +- drivers/pci/pci_auto.c | 28 ++++- drivers/pci/pci_rom.c | 40 ++++--- drivers/video/Makefile | 2 +- drivers/video/vesa_fb.c | 64 +++++++++++ drivers/video/x86_fb.c | 38 ------- include/configs/canyonlands.h | 31 ++++++ include/configs/chromebook_link.h | 2 +- include/pci.h | 9 ++ include/pci_rom.h | 1 - include/vbe.h | 9 +- 14 files changed, 312 insertions(+), 79 deletions(-) create mode 100644 drivers/video/vesa_fb.c delete mode 100644 drivers/video/x86_fb.c -- 2.2.0.rc0.207.ga3a616c

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[U-Boot] [PATCH V3 01/10] disk: support host devices in dev_print()
by Stephen Warren 18 May '19

18 May '19

Add a case statement for IF_TYPE_HOST in dev_print() so that it prints the device type rather than the "device type unknown" message. Signed-off-by: Stephen Warren <swarren(a)wwwdotorg.org> --- disk/part.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/disk/part.c b/disk/part.c index 43485c9148b0..4e72257434b6 100644 --- a/disk/part.c +++ b/disk/part.c @@ -179,6 +179,9 @@ void dev_print (block_dev_desc_t *dev_desc) case IF_TYPE_DOC: puts("device type DOC\n"); return; + case IF_TYPE_HOST: + puts("host device\n"); + break; case IF_TYPE_UNKNOWN: puts("device type unknown\n"); return; -- 1.9.1

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[U-Boot] [PATCH 1/2] usb: gadget: fastboot: Request status and length check in rx handler
by Paul Kocialkowski 18 Mar '19

18 Mar '19

This avoids handling requests that have an error status or no data. In particular, this avoids showing unnecessary error messages when the USB gadget gets disconnected (e.g. with fastboot continue) and the fastboot USB gadget driver sends an error back to the host (that has disconnected already). Signed-off-by: Paul Kocialkowski <contact(a)paulk.fr> --- drivers/usb/gadget/f_fastboot.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/usb/gadget/f_fastboot.c b/drivers/usb/gadget/f_fastboot.c index 206b6d1..b9a9099 100644 --- a/drivers/usb/gadget/f_fastboot.c +++ b/drivers/usb/gadget/f_fastboot.c @@ -635,6 +635,9 @@ static void rx_handler_command(struct usb_ep *ep, struct usb_request *req) void (*func_cb)(struct usb_ep *ep, struct usb_request *req) = NULL; int i; + if (req->status != 0 || req->length == 0) + return; + for (i = 0; i < ARRAY_SIZE(cmd_dispatch_info); i++) { if (!strcmp_l1(cmd_dispatch_info[i].cmd, cmdbuf)) { func_cb = cmd_dispatch_info[i].cb; @@ -656,9 +659,7 @@ static void rx_handler_command(struct usb_ep *ep, struct usb_request *req) } } - if (req->status == 0) { - *cmdbuf = '\0'; - req->actual = 0; - usb_ep_queue(ep, req, 0); - } + *cmdbuf = '\0'; + req->actual = 0; + usb_ep_queue(ep, req, 0); } -- 1.9.1

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[U-Boot] [PATCH v2 0/4] ARM: atmel: boards: enable SPL support
by Bo Shen 22 Feb '19

22 Feb '19

This patch series enable SPL support for following boards: - at91sam9m10g45ek - NAND flash boot support - SD card boot support - at91sam9n12ek - NAND flash boot support - SPI flash boot support - at91sam9x5ek - NAND flash boot support - SPI flash boot support Changes in v2: - Remove the meaningless prefix "+S:" in configuration file. Bo Shen (4): ARM: atmel: arm926ejs: fix clock configuration ARM: atmel: at91sam9m10g45ek: enable spl support ARM: atmel: at91sam9x5ek: enable spl support ARM: atmel: at91sam9n12ek: enable spl support arch/arm/mach-at91/Kconfig | 3 + arch/arm/mach-at91/Makefile | 2 + arch/arm/mach-at91/arm926ejs/clock.c | 54 +++++++++-------- arch/arm/mach-at91/arm926ejs/u-boot-spl.lds | 48 +++++++++++++++ arch/arm/mach-at91/include/mach/at91_pmc.h | 6 +- arch/arm/mach-at91/include/mach/at91sam9x5.h | 10 ++++ arch/arm/mach-at91/mpddrc.c | 3 +- arch/arm/mach-at91/spl.c | 2 +- arch/arm/mach-at91/spl_at91.c | 11 +++- board/atmel/at91sam9m10g45ek/at91sam9m10g45ek.c | 80 +++++++++++++++++++++++++ board/atmel/at91sam9n12ek/at91sam9n12ek.c | 73 ++++++++++++++++++++++ board/atmel/at91sam9x5ek/at91sam9x5ek.c | 74 +++++++++++++++++++++++ configs/at91sam9m10g45ek_mmc_defconfig | 1 + configs/at91sam9m10g45ek_nandflash_defconfig | 1 + configs/at91sam9n12ek_nandflash_defconfig | 1 + configs/at91sam9n12ek_spiflash_defconfig | 1 + configs/at91sam9x5ek_nandflash_defconfig | 1 + configs/at91sam9x5ek_spiflash_defconfig | 1 + include/configs/at91sam9m10g45ek.h | 58 ++++++++++++++++++ include/configs/at91sam9n12ek.h | 58 +++++++++++++++++- include/configs/at91sam9x5ek.h | 57 ++++++++++++++++++ 21 files changed, 513 insertions(+), 32 deletions(-) create mode 100644 arch/arm/mach-at91/arm926ejs/u-boot-spl.lds -- 2.3.3.220.g9ab698f

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[U-Boot] re-use dm data for pre-relocate and post-relocate
by Kever Yang 21 Jan '19

21 Jan '19

Hi Simon, In order to make people easier to maintain a U-Boot for product, we want to re-use the dtb from kernel. Some peripheral like power/pmic and display panel, key, charger which need work in U-Boot and may different in different product, we want to make people only maintain kernel dts, but not one more U-Boot project for all these devices. I want to do this just around the relocate, need to read dtb from storage like emmc/nand/spi, and then use a new dtb for initr_dm after relocate. Here are issues I have met: - The kernel dts may not have a stdout in chosen, we may use earlycon, earlyprintk instead; this lead to U-Boot can not find a serial driver after relocate; - no alias for mmc device which is need by U-Boot but not used in kernel; - not able to init mmc driver twice with current driver; mmc driver not able to work before relocate, no bss for (static int initialized), and hang even if I skip this; mmc driver can init and read dtb before initr_dm, but not able to init again after initr_dm. In fact, I don't think we have to re-init serial driver and mmc driver, and most other driver which need pre-relocate like clock, the only driver I have seem have different use in pre-relocate and post-relocate is video driver(no idea why it have to be pre-relocate, we always have display very late), can we add a tag for re-use the dm driver data for those with pre-relocate ? Thanks, - Kever

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[U-Boot] FOSDEM Hardware Enablement Devroom
by Paul Kocialkowski 04 Dec '18

04 Dec '18

A Hardware Enablement devroom will be taking place at FOSDEM this year, on Sunday 10 December 2017. This newly-created devroom is the result of 3 proposals that were merged together. It is co-organized by several individuals. The devroom covers all aspects related to hardware enablement and support with free software, including aspects related to boot software, firmwares, drivers and userspace tools and adaptation. Proposals for talks related to these topics are welcome and can be submitted until Sunday 26 November 2017 via the pentabarf interface. Short talks are encouraged over longer ones in order to cover a wide range of topics. The announcement for the devroom, that contains all the useful information, was published at: https://lists.fosdem.org/pipermail/fosdem/2017-October/002649.html Cheers and see you at FOSDEM! -- Paul Kocialkowski, developer of free digital technology and hardware support Website: https://www.paulk.fr/ Coding blog: https://code.paulk.fr/ Git repositories: https://git.paulk.fr/ https://git.code.paulk.fr/

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[U-Boot] [PATCH v2 1/2] power: regulator: add driver for the FAN53555 family
by Philipp Tomsich 16 Nov '18

16 Nov '18

This adds a driver for the FAN53555 family of regulators. While these devices support a 'normal' and 'suspend' mode (controlled via an external pin) to switch between two programmable voltages, this incarnation of the driver assumes that the device is always operating in 'normal' mode. Only setting/reading the programmed voltage is supported at this time and the following device functionality remains unsupported: - switching the selected voltage (via a GPIO) - disabling the voltage output via software-control This matches the functionality of the Linux driver. Tested on a RK3399-Q7 (with 'option 5' devices): setting voltages from the U-Boot shell and verifying output voltages on the board. Signed-off-by: Philipp Tomsich <philipp.tomsich(a)theobroma-systems.com> Tested-by: Klaus Goger <klaus.goger(a)theobroma-systems.com> --- Changes in v2: - adapted documentation on the device-tree binding from Linux doc/device-tree-bindings/regulator/fan53555.txt | 23 +++ drivers/power/regulator/Kconfig | 14 ++ drivers/power/regulator/Makefile | 1 + drivers/power/regulator/fan53555.c | 255 ++++++++++++++++++++++++ 4 files changed, 293 insertions(+) create mode 100644 doc/device-tree-bindings/regulator/fan53555.txt create mode 100644 drivers/power/regulator/fan53555.c diff --git a/doc/device-tree-bindings/regulator/fan53555.txt b/doc/device-tree-bindings/regulator/fan53555.txt new file mode 100644 index 0000000..b183738 --- /dev/null +++ b/doc/device-tree-bindings/regulator/fan53555.txt @@ -0,0 +1,23 @@ +Binding for Fairchild FAN53555 regulators + +Required properties: + - compatible: "fcs,fan53555" + - reg: I2C address + +Optional properties: + - fcs,suspend-voltage-selector: declare which of the two available + voltage selector registers should be used for the suspend + voltage. The other one is used for the runtime voltage setting + Possible values are either <0> or <1> + - vin-supply: regulator supplying the vin pin + +Example: + + regulator@40 { + compatible = "fcs,fan53555"; + regulator-name = "fan53555"; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1800000>; + vin-supply = <&parent_reg>; + fcs,suspend-voltage-selector = <1>; + }; diff --git a/drivers/power/regulator/Kconfig b/drivers/power/regulator/Kconfig index 8892fa1..c26a765 100644 --- a/drivers/power/regulator/Kconfig +++ b/drivers/power/regulator/Kconfig @@ -69,6 +69,20 @@ config DM_REGULATOR_MAX77686 features for REGULATOR MAX77686. The driver implements get/set api for: value, enable and mode. +config DM_REGULATOR_FAN53555 + bool "Enable Driver Model for REGULATOR FAN53555" + depends on DM_REGULATOR && DM_I2C + ---help--- + This config enables implementation of driver-model regulator uclass + features for the FAN53555 regulator. The FAN53555 is a (family of) + single-output regulators that supports transitioning between two + different output voltages based on an voltage selection pin. + + The driver implements a get/set api for the voltage of the 'normal + mode' voltage only. Switching to 'suspend mode' (i.e. the alternate + voltage), disabling output via software, or switching the mode is + not supported by this driver (at this time). + config DM_REGULATOR_FIXED bool "Enable Driver Model for REGULATOR Fixed value" depends on DM_REGULATOR diff --git a/drivers/power/regulator/Makefile b/drivers/power/regulator/Makefile index 6c149a9..21040ea 100644 --- a/drivers/power/regulator/Makefile +++ b/drivers/power/regulator/Makefile @@ -11,6 +11,7 @@ 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 +obj-$(CONFIG_$(SPL_)DM_REGULATOR_FAN53555) += fan53555.o obj-$(CONFIG_$(SPL_)DM_REGULATOR_FIXED) += fixed.o obj-$(CONFIG_$(SPL_)DM_REGULATOR_GPIO) += gpio-regulator.o obj-$(CONFIG_REGULATOR_RK8XX) += rk8xx.o diff --git a/drivers/power/regulator/fan53555.c b/drivers/power/regulator/fan53555.c new file mode 100644 index 0000000..3f0b4e9 --- /dev/null +++ b/drivers/power/regulator/fan53555.c @@ -0,0 +1,255 @@ +/* + * (C) 2017 Theobroma Systems Design und Consulting GmbH + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <bitfield.h> +#include <errno.h> +#include <dm.h> +#include <fdtdec.h> +#include <i2c.h> +#include <asm/gpio.h> +#include <power/pmic.h> +#include <power/regulator.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* + * The voltage ramp (i.e. minimum voltage and step) is defined by the + * combination of 2 nibbles: DIE_ID and DIE_REV. + * + * See http://www.onsemi.com/pub/Collateral/FAN53555-D.pdf for details. + */ +static const struct { + u8 die_id; + u8 die_rev; + u32 vsel_min; + u32 vsel_step; +} ic_types[] = { + { 0x0, 0x3, 600000, 10000 }, /* Option 00 */ + { 0x0, 0xf, 800000, 10000 }, /* Option 13 */ + { 0x0, 0xc, 600000, 12500 }, /* Option 23 */ + { 0x1, 0x3, 600000, 10000 }, /* Option 01 */ + { 0x3, 0x3, 600000, 10000 }, /* Option 03 */ + { 0x4, 0xf, 603000, 12826 }, /* Option 04 */ + { 0x5, 0x3, 600000, 10000 }, /* Option 05 */ + { 0x8, 0x1, 600000, 10000 }, /* Option 08 */ + { 0x8, 0xf, 600000, 10000 }, /* Option 08 */ + { 0xc, 0xf, 603000, 12826 }, /* Option 09 */ +}; + +/* I2C-accessible byte-sized registers */ +enum { + /* Voltage setting */ + FAN53555_VSEL0 = 0x00, + FAN53555_VSEL1, + /* Control register */ + FAN53555_CONTROL, + /* IC Type */ + FAN53555_ID1, + /* IC mask version */ + FAN53555_ID2, + /* Monitor register */ + FAN53555_MONITOR, +}; + +struct fan53555_platdata { + /* Voltage setting register */ + unsigned int vol_reg; + unsigned int sleep_reg; + +}; + +struct fan53555_priv { + /* IC Vendor */ + unsigned int vendor; + /* IC Type and Rev */ + unsigned int die_id; + unsigned int die_rev; + /* Voltage range and step(linear) */ + unsigned int vsel_min; + unsigned int vsel_step; + /* Voltage slew rate limiting */ + unsigned int slew_rate; + /* Sleep voltage cache */ + unsigned int sleep_vol_cache; +}; + +static int fan53555_write(struct udevice *dev, uint reg, u8 *buff, int len) +{ + int ret; + + ret = dm_i2c_write(dev, reg, buff, len); + if (ret) { + debug("%s: %s() failed to read reg %d\n", + dev->name, __func__, reg); + return ret; + } + + return 0; +} + +static int fan53555_read(struct udevice *dev, uint reg, u8 *buff, int len) +{ + int ret; + + ret = dm_i2c_read(dev, reg, buff, len); + if (ret) { + debug("%s: %s() failed to read reg %d\n", + dev->name, __func__, reg); + return ret; + } + + return 0; +} + +static int fan53555_regulator_ofdata_to_platdata(struct udevice *dev) +{ + struct fan53555_platdata *dev_pdata = dev_get_platdata(dev); + struct dm_regulator_uclass_platdata *uc_pdata; + u32 sleep_vsel; + + uc_pdata = dev_get_uclass_platdata(dev); + if (!uc_pdata) + return -ENXIO; + + /* This is a buck regulator */ + uc_pdata->type = REGULATOR_TYPE_BUCK; + + sleep_vsel = dev_read_u32_default(dev, "fcs,suspend-voltage-selector", + FAN53555_VSEL1); + + /* + * Depending on the device-tree settings, the 'normal mode' + * voltage is either controlled by VSEL0 or VSEL1. + */ + switch (sleep_vsel) { + case FAN53555_VSEL0: + dev_pdata->sleep_reg = FAN53555_VSEL0; + dev_pdata->vol_reg = FAN53555_VSEL1; + break; + case FAN53555_VSEL1: + dev_pdata->sleep_reg = FAN53555_VSEL1; + dev_pdata->vol_reg = FAN53555_VSEL0; + break; + default: + pr_err("%s: invalid vsel id %d\n", dev->name, sleep_vsel); + return -EINVAL; + } + + return 0; +} + +static int fan53555_regulator_get_value(struct udevice *dev) +{ + struct fan53555_platdata *pdata = dev_get_platdata(dev); + struct fan53555_priv *priv = dev_get_priv(dev); + u8 vol; + int voltage; + + /* We only support a single voltage selector (i.e. 'normal' mode). */ + fan53555_read(dev, pdata->vol_reg, &vol, 1); + voltage = priv->vsel_min + (vol & 0x3f) * priv->vsel_step; + + debug("%s: %d uV\n", __func__, voltage); + return voltage; +} + +static int fan53555_regulator_set_value(struct udevice *dev, int uV) +{ + struct fan53555_platdata *pdata = dev_get_platdata(dev); + struct fan53555_priv *priv = dev_get_priv(dev); + u8 vol, oldbits, newbits; + + vol = (uV - priv->vsel_min) / priv->vsel_step; + fan53555_read(dev, pdata->vol_reg, &oldbits, 1); + newbits = bitfield_replace(oldbits, 0, 6, vol); + fan53555_write(dev, pdata->vol_reg, &newbits, 1); + + debug("%s: uV=%d; reg %d: %02x -> %02x\n", + __func__, uV, pdata->vol_reg, oldbits, newbits); + + return 0; +} + +static int fan53555_voltages_setup(struct udevice *dev) +{ + struct fan53555_priv *priv = dev_get_priv(dev); + struct dm_regulator_uclass_platdata *uc_pdata; + int i; + + uc_pdata = dev_get_uclass_platdata(dev); + if (!uc_pdata) + return -ENXIO; + + /* Init voltage range and step */ + for (i = 0; i < ARRAY_SIZE(ic_types); ++i) { + if (ic_types[i].die_id != priv->die_id) + continue; + + if (ic_types[i].die_rev != priv->die_rev) + continue; + + priv->vsel_min = ic_types[i].vsel_min; + priv->vsel_step = ic_types[i].vsel_step; + + return 0; + } + + pr_err("%s: %s: die id %d rev %d not supported!\n", + dev->name, __func__, priv->die_id, priv->die_rev); + return -EINVAL; +} + +enum { + DIE_ID_SHIFT = 0, + DIE_ID_WIDTH = 4, + DIE_REV_SHIFT = 0, + DIE_REV_WIDTH = 4, +}; + + +static int fan53555_probe(struct udevice *dev) +{ + struct fan53555_priv *priv = dev_get_priv(dev); + u8 id1, id2; + + /* read chip id: vendor, die-id and die-revision */ + fan53555_read(dev, FAN53555_ID1, &id1, 1); + fan53555_read(dev, FAN53555_ID2, &id2, 1); + + priv->vendor = bitfield_extract(id1, 5, 3); + priv->die_id = id1 & GENMASK(3, 0); + priv->die_rev = id2 & GENMASK(3, 0); + + if (fan53555_voltages_setup(dev) < 0) + return -ENODATA; + + debug("%s: FAN53555 option %d rev %d detected\n", + __func__, priv->die_id, priv->die_rev); + + return 0; +} + +static const struct dm_regulator_ops fan53555_regulator_ops = { + .get_value = fan53555_regulator_get_value, + .set_value = fan53555_regulator_set_value, +}; + +static const struct udevice_id fan53555_regulator_ids[] = { + { .compatible = "fcs,fan53555" }, + { }, +}; + +U_BOOT_DRIVER(fan53555_regulator) = { + .name = "fan53555 regulator", + .id = UCLASS_REGULATOR, + .ops = &fan53555_regulator_ops, + .of_match = fan53555_regulator_ids, + .ofdata_to_platdata = fan53555_regulator_ofdata_to_platdata, + .platdata_auto_alloc_size = sizeof(struct fan53555_platdata), + .priv_auto_alloc_size = sizeof(struct fan53555_priv), + .probe = fan53555_probe, +}; -- 2.1.4

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[U-Boot] [PATCH] common: build ymodem only on need
by Jun Nie 10 Nov '18

10 Nov '18

Build ymodem only on need to shrink spl image size. Signed-off-by: Jun Nie <jun.nie(a)linaro.org> --- common/Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/common/Makefile b/common/Makefile index c7bde23..0614348 100644 --- a/common/Makefile +++ b/common/Makefile @@ -133,4 +133,5 @@ obj-y += command.o obj-$(CONFIG_$(SPL_)LOG) += log.o obj-$(CONFIG_$(SPL_)LOG_CONSOLE) += log_console.o obj-y += s_record.o -obj-y += xyzModem.o +obj-$(CONFIG_CMD_LOADB) += xyzModem.o +obj-$(CONFIG_$(SPL_TPL_)YMODEM_SUPPORT) += xyzModem.o -- 1.9.1

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