February 2018 - U-Boot

[U-Boot] [PULL] u-boot-sh/master
by Marek Vasut 17 Feb '18

17 Feb '18

The following changes since commit 32fe36574ea5e6ea55313e16547b98a984af7767: Merge git://git.denx.de/u-boot-arc (2018-02-15 14:07:04 -0500) are available in the Git repository at: git://git.denx.de/u-boot-sh.git master for you to fetch changes up to 5b6ae550a8d88ca8c7b5c39642fe767729422edb: ARM: rmobile: Enable autocompletion on Gen2 (2018-02-16 16:43:11 +0100) ---------------------------------------------------------------- Marek Vasut (9): clk: rmobile: Assure SD-IF clock are configured correctly net: ravb: Initialize PHY in probe() once ARM: rmobile: Enable DTO support on Gen3 ARM: rmobile: Enable autocompletion on Gen3 serial: Replace CONFIG_ with CONFIG_IS_ENABLED ARM: dts: rmobile: Make scif0 available before reloc on Porter ARM: dts: rmobile: Make PFC and RST available before reloc ARM: rmobile: Convert Porter to SPL ARM: rmobile: Enable autocompletion on Gen2 arch/arm/dts/r8a7791-porter.dts | 1 + arch/arm/dts/r8a779x-u-boot.dtsi | 8 ++++++++ arch/arm/mach-rmobile/Kconfig.32 | 2 ++ board/renesas/porter/porter.c | 22 ++++++++++++++++++++++ configs/porter_defconfig | 20 +++++++++++++++++++- configs/r8a7795_salvator-x_defconfig | 1 + configs/r8a7795_ulcb_defconfig | 1 + configs/r8a7796_salvator-x_defconfig | 1 + configs/r8a7796_ulcb_defconfig | 1 + configs/r8a77970_eagle_defconfig | 1 + configs/r8a77995_draak_defconfig | 1 + drivers/clk/renesas/clk-rcar-gen3.c | 2 ++ drivers/net/ravb.c | 32 +++++++++++++++++++------------- drivers/serial/serial_sh.c | 4 ++-- include/configs/porter.h | 15 +++++++++------ include/configs/rcar-gen2-common.h | 2 +- include/configs/rcar-gen3-common.h | 1 + 17 files changed, 92 insertions(+), 23 deletions(-)

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[U-Boot] [PULL] u-boot-socfpga/master
by Marek Vasut 17 Feb '18

17 Feb '18

The following changes since commit 0c502b6c176281a096a23803e517b19e964485f1: configs: Resync with savedefconfig (2018-02-14 21:34:50 -0500) are available in the Git repository at: git://git.denx.de/u-boot-socfpga.git master for you to fetch changes up to fef4a545b696daf7f27f176aae82fd47b1174aba: arm: socfpga: use imply instead of select where applicable (2018-02-15 13:45:16 +0100) ---------------------------------------------------------------- Lukasz Majewski (1): Convert socfpga: select CONFIG_HW_WATCHDOG support for ARCH_SOCFPGA Simon Goldschmidt (2): arm: socfpga: fix qspi flash compatible (add "spi-flash") arm: socfpga: use imply instead of select where applicable arch/arm/Kconfig | 7 ++++--- arch/arm/dts/socfpga_arria5_socdk.dts | 2 +- arch/arm/dts/socfpga_cyclone5_is1.dts | 2 +- arch/arm/dts/socfpga_cyclone5_socdk.dts | 2 +- arch/arm/dts/socfpga_cyclone5_socrates.dts | 2 +- include/configs/socfpga_arria10_socdk.h | 2 -- include/configs/socfpga_arria5_socdk.h | 2 -- include/configs/socfpga_cyclone5_socdk.h | 2 -- include/configs/socfpga_de0_nano_soc.h | 2 -- include/configs/socfpga_de10_nano.h | 2 -- include/configs/socfpga_de1_soc.h | 2 -- include/configs/socfpga_is1.h | 2 -- include/configs/socfpga_mcvevk.h | 2 -- include/configs/socfpga_sockit.h | 2 -- include/configs/socfpga_socrates.h | 2 -- include/configs/socfpga_sr1500.h | 2 -- include/configs/socfpga_vining_fpga.h | 2 -- 17 files changed, 8 insertions(+), 31 deletions(-)

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[U-Boot] [PULL] u-boot-usb/master
by Marek Vasut 17 Feb '18

17 Feb '18

The following changes since commit 0c502b6c176281a096a23803e517b19e964485f1: configs: Resync with savedefconfig (2018-02-14 21:34:50 -0500) are available in the Git repository at: git://git.denx.de/u-boot-usb.git master for you to fetch changes up to b16c129c2290d26e7b16b4309713c78f6146bc8a: usb: host: xhci-omap: Remove redundant board_usb_init and board_usb_cleanup functions (2018-02-15 13:44:30 +0100) ---------------------------------------------------------------- Alexey Brodkin (1): usb: dwc2: Rename CONFIG_DWC2_UTMI_PHY_WIDTH to CONFIG_DWC2_UTMI_WIDTH Faiz Abbas (1): usb: host: xhci-omap: Remove redundant board_usb_init and board_usb_cleanup functions board/compulab/cl-som-am57x/cl-som-am57x.c | 13 +++++++++++++ board/compulab/cm_t43/cm_t43.c | 14 ++++++++++++++ board/ti/am43xx/board.c | 4 ++-- board/ti/am57xx/board.c | 4 ++-- board/ti/dra7xx/evm.c | 4 ++-- drivers/usb/host/dwc2.c | 2 +- drivers/usb/host/dwc2.h | 2 ++ drivers/usb/host/xhci-omap.c | 22 ---------------------- 8 files changed, 36 insertions(+), 29 deletions(-)

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[U-Boot] [PATCH] env: restore old env_get_char() behaviour
by Goldschmidt Simon 17 Feb '18

17 Feb '18

With multiple environments, the 'get_char' callback for env drivers does not really make sense any more because it is only supported by two drivers (eeprom and nvram). To restore single character loading for these drivers, override 'env_get_char_spec'. Signed-off-by: Simon Goldschmidt <sgoldschmidt(a)de.pepperl-fuchs.com> --- env/eeprom.c | 6 ++++-- env/env.c | 29 +++++++---------------------- env/nvram.c | 8 ++++---- include/environment.h | 11 ----------- 4 files changed, 15 insertions(+), 39 deletions(-) diff --git a/env/eeprom.c b/env/eeprom.c index 55d19d9d99..63842d6ff3 100644 --- a/env/eeprom.c +++ b/env/eeprom.c @@ -61,7 +61,10 @@ static int eeprom_bus_write(unsigned dev_addr, unsigned offset, return rcode; } -static int env_eeprom_get_char(int index) +/** Call this function from overridden env_get_char_spec() if you need + * this functionality. + */ +int env_eeprom_get_char(int index) { uchar c; unsigned int off = CONFIG_ENV_OFFSET; @@ -228,7 +231,6 @@ static int env_eeprom_save(void) U_BOOT_ENV_LOCATION(eeprom) = { .location = ENVL_EEPROM, ENV_NAME("EEPROM") - .get_char = env_eeprom_get_char, .load = env_eeprom_load, .save = env_save_ptr(env_eeprom_save), }; diff --git a/env/env.c b/env/env.c index 9a89832c1a..ab12606207 100644 --- a/env/env.c +++ b/env/env.c @@ -149,32 +149,17 @@ static struct env_driver *env_driver_lookup(enum env_operation op, int prio) return drv; } -int env_get_char(int index) +__weak int env_get_char_spec(int index) { - struct env_driver *drv; - int prio; + return *(uchar *)(gd->env_addr + index); +} +int env_get_char(int index) +{ if (gd->env_valid == ENV_INVALID) return default_environment[index]; - - for (prio = 0; (drv = env_driver_lookup(ENVOP_GET_CHAR, prio)); prio++) { - int ret; - - if (!drv->get_char) - continue; - - if (!env_has_inited(drv->location)) - continue; - - ret = drv->get_char(index); - if (!ret) - return 0; - - debug("%s: Environment %s failed to load (err=%d)\n", __func__, - drv->name, ret); - } - - return -ENODEV; + else + return env_get_char_spec(index); } int env_load(void) diff --git a/env/nvram.c b/env/nvram.c index 6f76fe4b8d..7cc62b631e 100644 --- a/env/nvram.c +++ b/env/nvram.c @@ -41,7 +41,10 @@ env_t *env_ptr = (env_t *)CONFIG_ENV_ADDR; #endif #ifdef CONFIG_SYS_NVRAM_ACCESS_ROUTINE -static int env_nvram_get_char(int index) +/** Call this function from overridden env_get_char_spec() if you need + * this functionality. + */ +int env_nvram_get_char(int index) { uchar c; @@ -113,9 +116,6 @@ static int env_nvram_init(void) U_BOOT_ENV_LOCATION(nvram) = { .location = ENVL_NVRAM, ENV_NAME("NVRAM") -#ifdef CONFIG_SYS_NVRAM_ACCESS_ROUTINE - .get_char = env_nvram_get_char, -#endif .load = env_nvram_load, .save = env_save_ptr(env_nvram_save), .init = env_nvram_init, diff --git a/include/environment.h b/include/environment.h index 6044b9e1b4..8696573d0d 100644 --- a/include/environment.h +++ b/include/environment.h @@ -217,17 +217,6 @@ struct env_driver { const char *name; enum env_location location; - /** - * get_char() - Read a character from the environment - * - * This method is optional. If not provided, a default implementation - * will read from gd->env_addr. - * - * @index: Index of character to read (0=first) - * @return character read, or -ve on error - */ - int (*get_char)(int index); - /** * load() - Load the environment from storage * -- 2.14.1

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[U-Boot] [PATCH 1/2] env: Fix env_load_location
by York Sun 17 Feb '18

17 Feb '18

Commit 7d714a24d725 ("env: Support multiple environments") added static variable env_load_location. When saving environmental variables, this variable is presumed to have the value set before. In case the value was set before relocation and U-Boot runs from a NOR flash, this variable wasn't writable. This causes failure when saving the environment. To save this location, global data must be used instead. Signed-off-by: York Sun <york.sun(a)nxp.com> CC: Maxime Ripard <maxime.ripard(a)free-electrons.com> --- Limited test on LS1043ARDB. env/env.c | 8 +++----- include/asm-generic/global_data.h | 1 + include/environment.h | 2 +- 3 files changed, 5 insertions(+), 6 deletions(-) diff --git a/env/env.c b/env/env.c index 9a89832..edfb575 100644 --- a/env/env.c +++ b/env/env.c @@ -62,8 +62,6 @@ static enum env_location env_locations[] = { #endif }; -static enum env_location env_load_location = ENVL_UNKNOWN; - static bool env_has_inited(enum env_location location) { return gd->env_has_init & BIT(location); @@ -108,11 +106,11 @@ __weak enum env_location env_get_location(enum env_operation op, int prio) if (prio >= ARRAY_SIZE(env_locations)) return ENVL_UNKNOWN; - env_load_location = env_locations[prio]; - return env_load_location; + gd->env_load_location = env_locations[prio]; + return gd->env_load_location; case ENVOP_SAVE: - return env_load_location; + return gd->env_load_location; } return ENVL_UNKNOWN; diff --git a/include/asm-generic/global_data.h b/include/asm-generic/global_data.h index fd8cd45..10f1441 100644 --- a/include/asm-generic/global_data.h +++ b/include/asm-generic/global_data.h @@ -51,6 +51,7 @@ typedef struct global_data { unsigned long env_addr; /* Address of Environment struct */ unsigned long env_valid; /* Environment valid? enum env_valid */ unsigned long env_has_init; /* Bitmask of boolean of struct env_location offsets */ + int env_load_location; unsigned long ram_top; /* Top address of RAM used by U-Boot */ unsigned long relocaddr; /* Start address of U-Boot in RAM */ diff --git a/include/environment.h b/include/environment.h index a406050..0f339da 100644 --- a/include/environment.h +++ b/include/environment.h @@ -188,6 +188,7 @@ enum env_valid { }; enum env_location { + ENVL_UNKNOWN, ENVL_EEPROM, ENVL_EXT4, ENVL_FAT, @@ -202,7 +203,6 @@ enum env_location { ENVL_NOWHERE, ENVL_COUNT, - ENVL_UNKNOWN, }; /* value for the various operations we want to perform on the env */ -- 2.7.4

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[U-Boot] [PATCH] dfu: Build only RAM for DFU in SPL
by Faiz Abbas 17 Feb '18

17 Feb '18

In SPL, DFU only has RAM support. Therefore, only build RAM for DFU in SPL. Signed-off-by: Faiz Abbas <faiz_abbas(a)ti.com> --- drivers/dfu/Makefile | 5 +++++ include/dfu.h | 8 ++++---- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/dfu/Makefile b/drivers/dfu/Makefile index 61f2b71..407be5f 100644 --- a/drivers/dfu/Makefile +++ b/drivers/dfu/Makefile @@ -6,8 +6,13 @@ # obj-$(CONFIG_USB_FUNCTION_DFU) += dfu.o + +ifdef CONFIG_SPL_BUILD +obj-$(CONFIG_SPL_DFU_RAM) += dfu_ram.o +else obj-$(CONFIG_DFU_MMC) += dfu_mmc.o obj-$(CONFIG_DFU_NAND) += dfu_nand.o obj-$(CONFIG_DFU_RAM) += dfu_ram.o obj-$(CONFIG_DFU_SF) += dfu_sf.o obj-$(CONFIG_DFU_TFTP) += dfu_tftp.o +endif diff --git a/include/dfu.h b/include/dfu.h index 7e322d9..b25366d 100644 --- a/include/dfu.h +++ b/include/dfu.h @@ -203,7 +203,7 @@ static inline void dfu_set_defer_flush(struct dfu_entity *dfu) int dfu_write_from_mem_addr(struct dfu_entity *dfu, void *buf, int size); /* Device specific */ -#ifdef CONFIG_DFU_MMC +#if CONFIG_IS_ENABLED(DFU_MMC) extern int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, char *s); #else static inline int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, @@ -214,7 +214,7 @@ static inline int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, } #endif -#ifdef CONFIG_DFU_NAND +#if CONFIG_IS_ENABLED(DFU_NAND) extern int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr, char *s); #else static inline int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr, @@ -225,7 +225,7 @@ static inline int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr, } #endif -#ifdef CONFIG_DFU_RAM +#if CONFIG_IS_ENABLED(DFU_RAM) extern int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr, char *s); #else static inline int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr, @@ -236,7 +236,7 @@ static inline int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr, } #endif -#ifdef CONFIG_DFU_SF +#if CONFIG_IS_ENABLED(DFU_SF) extern int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr, char *s); #else static inline int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr, -- 2.7.4

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Re: [U-Boot] [PATCHv1] mx53ppd: Change UART clock divider for high baudrate
by rick＠efn.org 17 Feb '18

17 Feb '18

It's been ages since I've worked on this, let me refresh my memory and get back to you. Cheers, Rick From: "Fabio Estevam" <festevam(a)gmail.com> To: "Sebastian Reichel" <sebastian.reichel(a)collabora.co.uk> Cc: "Stefano Babic" <sbabic(a)denx.de>, "Fabio Estevam" <fabio.estevam(a)nxp.com>, "U-Boot-Denx" <u-boot(a)lists.denx.de>, "Rick Bronson" <rick(a)efn.org> Sent: Saturday, February 17, 2018 9:42:47 AM Subject: Re: [U-Boot] [PATCHv1] mx53ppd: Change UART clock divider for high baudrate On Thu, Feb 15, 2018 at 2:15 PM, Sebastian Reichel <sebastian.reichel(a)collabora.co.uk> wrote: > From: Rick Bronson <rick(a)efn.org> > > Allow higher UART baud rates for communications to ACHC at 13.5 MBaud > Done in u-boot since it changes a divider common to all UARTs, including > the console. If it were done in Linux we would get garbled characters > during the handoff from u-boot to the kernel. A Signed-off-by from Rick is missing here. > Signed-off-by: Sebastian Reichel <sebastian.reichel(a)collabora.co.uk>

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[U-Boot] [PATCHv1] mx53ppd: Change UART clock divider for high baudrate
by Sebastian Reichel 17 Feb '18

17 Feb '18

From: Rick Bronson <rick(a)efn.org> Allow higher UART baud rates for communications to ACHC at 13.5 MBaud Done in u-boot since it changes a divider common to all UARTs, including the console. If it were done in Linux we would get garbled characters during the handoff from u-boot to the kernel. Signed-off-by: Sebastian Reichel <sebastian.reichel(a)collabora.co.uk> --- arch/arm/mach-imx/mx5/lowlevel_init.S | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/mach-imx/mx5/lowlevel_init.S b/arch/arm/mach-imx/mx5/lowlevel_init.S index f5bc6728b7c2..ee4c3afd2fed 100644 --- a/arch/arm/mach-imx/mx5/lowlevel_init.S +++ b/arch/arm/mach-imx/mx5/lowlevel_init.S @@ -319,11 +319,13 @@ setup_pll_func: ldr r1, =0x00016154 str r1, [r0, #CLKCTL_CBCMR] +#if !defined(CONFIG_TARGET_MX53PPD) /*change uart clk parent to pll2*/ ldr r1, [r0, #CLKCTL_CSCMR1] and r1, r1, #0xfcffffff orr r1, r1, #0x01000000 str r1, [r0, #CLKCTL_CSCMR1] +#endif /* make sure change is effective */ 1: ldr r1, [r0, #CLKCTL_CDHIPR] @@ -350,7 +352,9 @@ setup_pll_func: /* make uart div=6 */ ldr r1, [r0, #CLKCTL_CSCDR1] and r1, r1, #0xffffffc0 +#if !defined(CONFIG_TARGET_MX53PPD) orr r1, r1, #0x0a +#endif str r1, [r0, #CLKCTL_CSCDR1] /* Restore the default values in the Gate registers */ -- 2.15.1

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[U-Boot] How to test new bootloaders on Jetson TX1?
by Andreas Färber 17 Feb '18

17 Feb '18

Hello, I would like to test the latest version of U-Boot on the Jetson TX1. Unfortunately U-Boot is lacking a README that would explain how to do that: http://git.denx.de/?p=u-boot.git;a=tree;f=board/nvidia/p2371-2180;h=097fb9a… I understand that the Jetson TK1's Python based https://github.com/NVIDIA/tegra-uboot-flasher-scripts have never been updated for Tegra X1. That leaves L4T Jetson TX1 Driver Package, latest version being R28.1.0. Here's what I have tried: $ sudo ./flash.sh p2371-2180-devkit mmcblk0p1 On openSUSE Leap 42.3 this keeps failing the first time: copying bctfile(/home/andreas/MCU/ARM/JetsonTX1/Linux_for_Tegra/bootloader/t210ref/BCT/P2180_A00_LP4_DSC_204Mhz.cfg)... done. copying bootloader(/home/andreas/MCU/ARM/JetsonTX1/Linux_for_Tegra/bootloader/t210ref/cboot.bin)... done. populating kernel to rootfs... done. populating initrd to rootfs... done. populating extlinux.conf.emmc to rootfs... done. populating /home/andreas/MCU/ARM/JetsonTX1/Linux_for_Tegra/kernel/dtb/tegra210-jetson-tx1-p2597-2180-a01-devkit.dtb to rootfs... done. done. Making Boot image... done. copying bcffile(/home/andreas/MCU/ARM/JetsonTX1/Linux_for_Tegra/bootloader/t210ref/cfg/board_config_p2597-devkit.xml)... done. Existing sosfile(/home/andreas/MCU/ARM/JetsonTX1/Linux_for_Tegra/bootloader/nvtboot_recovery.bin) reused. copying tegraboot(/home/andreas/MCU/ARM/JetsonTX1/Linux_for_Tegra/bootloader/t210ref/nvtboot.bin)... done. Existing bpffile(/home/andreas/MCU/ARM/JetsonTX1/Linux_for_Tegra/bootloader/bpmp.bin) reused. copying wb0boot(/home/andreas/MCU/ARM/JetsonTX1/Linux_for_Tegra/bootloader/t210ref/warmboot.bin)... done. Existing tosfile(/home/andreas/MCU/ARM/JetsonTX1/Linux_for_Tegra/bootloader/tos.img) reused. Existing eksfile(/home/andreas/MCU/ARM/JetsonTX1/Linux_for_Tegra/bootloader/eks.img) reused. copying dtbfile(/home/andreas/MCU/ARM/JetsonTX1/Linux_for_Tegra/kernel/dtb/tegra210-jetson-tx1-p2597-2180-a01-devkit.dtb)... done. Making system.img... /dev/loop0 is not block device. Terminating.. I have managed to work around that by running sudo losetup -f once. That gets me to a: U-Boot 2016.07-g0ce7ca2 (Jul 20 2017 - 00:37:03 -0700) (where our efiboot command doesn't quite work yet) https://elinux.org/Jetson/TX1_Upstream_Kernel claims: "The distributed tarball contains a pre-built U-Boot and kernel, but these may be replaced with any images you wish to flash, by replacing the distributed images in the directory tree." and "To flash only the primary bootloader and U-Boot: ./flash.sh -k EBT p2371-2180 mmcblk0p1" Apparently that's not true anymore (R23.1.1 armhf vs. R28.1.0 aarch64): Operation succeeds, but U-Boot is still the old one. Possible cause: The EBT partition gets a cboot.bin, not u-boot-dtb.bin. If I repeat without -k EBT and with the openSUSE OBS builds of U-Boot v2018.01 then again flashing appears to succeed, but boot gets stuck at: [0003.260] Starting Bpmp FW [0003.263] BPMP-FW Carveout: Base = 0xff2c0000 and Size = 0x40000 (short of showing the U-Boot banner) Also, ATF shows up as: NOTICE: BL31: v1.2(release):cc5fd7c NOTICE: BL31: Built : 00:37:02, Jul 20 2017 (which is most certainly lacking Jan 2018 Spectre mitigations for CA57) Security Bulletin http://nvidia.custhelp.com/app/answers/detail/a_id/4616 announces an R28.2 for later this month, but with t210 in mainline ATF I would really like to use my own patched ATF build already. https://github.com/ARM-software/arm-trusted-firmware/blob/6f62574767546b111… doesn't explain how to get the t210 bl31.bin onto a board either. https://elinux.org/Jetson_TX1 links to multiple App Notes on a non-reachable Nvidia FTP server. I found that replacing ftp with http, they can still be reached (dated 2015), but http://download.nvidia.com/tegra-public-appnotes/t210-nvtboot-flow.html isn't too helpful either, other than giving a rough overview. Colleagues have succeeded in loading a U-Boot via RCM into RAM and executing from there, but I figure that won't quite work for ATF. And it's no permanent solution anyway. So could someone please comment on how to perform a minimally-invasive update of the individual Open Source firmware components for Jetson TX1? Thanks, Andreas -- SUSE Linux GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg)

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[U-Boot] [PATCH 1/4] i2c: rcar_iic: Allow IIC on RCar Gen2
by Marek Vasut 17 Feb '18

17 Feb '18

The IIC on Gen2 is compatible with this driver as well, allow it. Signed-off-by: Marek Vasut <marek.vasut+renesas(a)gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu(a)nigauri.org> --- drivers/i2c/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig index 7dbec775df..9d43690503 100644 --- a/drivers/i2c/Kconfig +++ b/drivers/i2c/Kconfig @@ -178,7 +178,7 @@ endif config SYS_I2C_RCAR_IIC bool "Renesas RCar Gen3 IIC driver" - depends on RCAR_GEN3 && DM_I2C + depends on (RCAR_GEN3 || RCAR_GEN2) && DM_I2C help Support for Renesas RCar Gen3 IIC controller. -- 2.15.1

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