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2015-09-02imx: mx6ul_14x14_evk discard MX6UL from CONFIG_SYS_EXTRA_OPTIONSPeng Fan
Discard MX6UL from CONFIG_SYS_EXTRA_OPTIONS, since we default select MX6UL for mx6ul_14x14_evk board. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com>
2015-09-02imx: mx6ul_14x14_evk select MX6ULPeng Fan
There is no need to expose SoC choice to user, we already got the SoC according to the build target. So default "select MX6UL" for MX6UL_14x14_EVK target. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com>
2015-09-02arm: Add SYS_L2CACHE_OFF Kconfig entryPeng Fan
To i.MX6UL, SYS_L2CACHE_OFF is selected, but there is no Kconfig entry for SYS_L2CACHE_OFF. Then "select SYS_L2CACHE_OFF" does not effect for i.MX6UL, which is not expected. Since SYS_L2CACHE_OFF is mainly used by ARM architecture, add it to arch/arm/Kconfig. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: Tom Rini <trini@konsulko.com> Cc: Stefano Babic <sbabic@denx.de>
2015-09-02imx: mx6slevk: add SPL supportPeng Fan
Add SPL boot support for mx6slevk board. 1. Introduce a configuration file mx6slevk_spl_defconfig. 2. i.MX6SL has same DRAM space with i.MX6SX, need to change SPL DRAM SPACE. 3. Include imx6_spl.h and related SPL macro in mx6slevk.h. 4. select SUPPORT_SPL for TARGET_MX6SLEVK. 5. Add SPL board code to do related initialization. Boot Log: U-Boot SPL 2015.07-00544-g1594a76 (Aug 17 2015 - 01:56:59) reading u-boot.img reading u-boot.img U-Boot 2015.07-00544-g1594a76 (Aug 17 2015 - 01:56:59 +0000) CPU: Freescale i.MX6SL rev1.2 996 MHz (running at 396 MHz) CPU: Commercial temperature grade (0C to 95C) at 50C Reset cause: POR Board: MX6SLEVK I2C: ready DRAM: 1 GiB PMIC: PFUZE100 ID=0x10 MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2 *** Warning - bad CRC, using default environment In: serial Out: serial Err: serial Net: FEC [PRIME] Hit any key to stop autoboot: 0 Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com>
2015-09-02imx: mx6: ddr: add LPDDR2 supportPeng Fan
Add LPDDR2 support: 1. Implement a function mx6_lpddr2_cfg to initialize MMDC for LPDDR2. 2. Introduce a structure mx6_lpddr2_cfg, most entrys are same to mx6_ddr3_cfg, but still keep it a single one for easy to choose parameters for LPDDR2. 3. If ddr_type is LPDDR2, use mx6_lpddr2_cfg to init MMDC. 4. Update comments. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Tim Harvey <tharvey@gateworks.com>
2015-09-02imx: mx6: ddr init MMDC according to ddr_typePeng Fan
To i.MX6, DDR3 and LPDDR2 is supported, so rename function mx6_dram_cfg to mx6_ddr3_cfg and the original mx6_dram_cfg function only is a wrapper. The new reimplemented function mx6_dram_cfg only invokes mx6_ddr3_cfg when ddr_type is for DDR3. Later we can use ddr_type to initialize MMDC for LPDDR2. Initialize ddr_type for different boards which enable SPL. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Tim Harvey <tharvey@gateworks.com> Cc: Stefan Roese <sr@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Reviewed-by: Stefan Roese <sr@denx.de>
2015-09-02imx: mx6: ddr add an entry ddr_type for mx6_ddr_sysinfoPeng Fan
Add ddr_type entry for mx6_ddr_sysinfo. It will be used for differenrate DDR3 and LPDDR2. Introduce an enum type for ddr_type. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Tim Harvey <tharvey@gateworks.com>
2015-09-02imx: mx6: ddr add mpzqlp2ctl entryPeng Fan
Add mpzqlp2ctl entry for mx6_mmdc_calibration. MMDC_MPZQLP2CTL register is for init tZQINIT, tZQCL, tZQCS for LPDDR2 chips. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Tim Harvey <tharvey@gateworks.com>
2015-09-02imx: mx6: ddr add dram io configuration and header file for i.MX6SLPeng Fan
Define two structure mx6sl_iomux_ddr_regs and mx6sl_iomux_grp_regs. Add a new function mx6sl_dram_iocfg to configure dram io. Add header file to define macros for register address. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de>
2015-09-02imx: mx6: ddr correct tRFC and tXSPeng Fan
To Chip density 4Gb, tRFC should be 300ns, see "Table 61 — Refresh parameters by device density" of JESD79-3E. tXS(min) is max(5nCK, tRFC(min) + 10ns). Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Tim Harvey <tharvey@gateworks.com> Reviewed-by: Stefano Babic <sbabic@denx.de>
2015-09-02imx: mx6: ddr no support MMDC1 for i.MX6SLPeng Fan
i.MX 6SoloLite only supports MMDC0, so do not access MMDC1 for i.MX 6SL. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Tim Harvey <tharvey@gateworks.com> Reviewed-by: Stefano Babic <sbabic@denx.de>
2015-09-02imx: mx6: ddr add more register entry for mmdc_p_regsPeng Fan
Add more register entry for MMDC structure. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Tim Harvey <tharvey@gateworks.com> Reviewed-by: Stefano Babic <sbabic@denx.de>
2015-09-02tbs2910: remove SYS_SOC from board specific KconfigSoeren Moch
SYS_SOC is already defined in arch/arm/cpu/armv7/mx6/Kconfig, no need to define it again Signed-off-by: Soeren Moch <smoch@web.de>
2015-09-02tbs2910: remove deprecated CONFIG_SYS_EXTRA_OPTIONSSoeren Moch
move options from CONFIG_SYS_EXTRA_OPTIONS to board specific Kconfig Signed-off-by: Soeren Moch <smoch@web.de>
2015-09-02tbs2910: use full name in Kconfig board selectionSoeren Moch
Signed-off-by: Soeren Moch <smoch@web.de>
2015-09-02imx: fec: add MAC reading from eFuses to READMEOlaf Mandel
Extend the documentation of the fec_mxc configuration by describing its ability to read the ethaddr MAC address from the SoC eFuses. Also add an example how to program the fuses for an imx5 to clarify the byte order. Cc: Stefano Babic <sbabic at denx.de> Cc: Marek Vasut <marex at denx.de> Signed-off-by: Olaf Mandel <o.mandel at menlosystems.com>
2015-09-02arm, imx6: aristainetos board updatesHeiko Schocher
some small updates for the aristainetos boards: - fix display timings for the aristainetos board - fix pinmux for the aristainetos board - fix pinmux for the aristainetos2 board - fix default environment Signed-off-by: Heiko Schocher <hs@denx.de>
2015-09-02imx: mx6sxsabresd: enable CONFIG_SPL_FAT_SUPPORTPeng Fan
Enable CONFIG_SPL_FAT_SUPPORT to load u-boot.img from FAT partition. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Reviewed-by: Stefano Babic <sbabic@denx.de>
2015-09-02imx: mx6ul_14x14_evk add ENET supportPeng Fan
Add enet support for mx6ul_14x14_evk board: 1. add pinmux settings 2. implement board_eth_init 3. implement board_phy_config Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com>
2015-09-02imx: ocotp: mxc add i.MX7D supportAdrian Alonso
* Ocotp of i.MX7D has different operation rule. This patch is to add support for i.MX7D ocotp. Signed-off-by: Adrian Alonso <aalonso@freescale.com> Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Signed-off-by: Ye.Li <B37916@freescale.com>
2015-09-02imx: mxc_gpio: add support for imx7d SoCAdrian Alonso
* Add mxc_gpio support for imx7d SoC * Use CONFIG_MX7 to extend mxc gpio driver support for imx7d Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Signed-off-by: Adrian Alonso <aalonso@freescale.com>
2015-09-02imx: iomux-v3: add imx7d support for iomuxcAdrian Alonso
* Add imx7d support for iomux controller * imx7d has two iomux controllers iomuxc (0x3033000) and iomuxc-lpsr (0x302C0000) each conroller provides control and mux mode pad registers but shares iomuxc input select register with iomuxc-lpsr IOMUX_CONFIG_LPSR flag is used to properly set daisy chain settings for iomuxc-lpsr pads. * Since mx7d introduces LPSR IOMUX pins, add new base to IOMUX v3 driver for these LPSR pins. Signed-off-by: Adrian Alonso <aalonso@freescale.com> Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: Ye.Li <B37916@freescale.com>
2015-09-02power: pmic: add pfuze3000 supportAdrian Alonso
* Add pmic pfuze3000 support, implement power_pfuze3000_init to be used in power_init_board callback function. Signed-off-by: Adrian Alonso <aalonso@freescale.com> Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
2015-09-02net: fec: do not access reserved register for i.MX6ULPeng Fan
The MIB RAM and FIFO receive start register does not exist on i.MX6UL. Accessing these register will cause enet not work well. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Signed-off-by: Fugang Duan <B38611@freescale.com> Cc: Joe Hershberger <joe.hershberger@ni.com> Cc: Stefano Babic <sbabic@denx.de>
2015-09-02imx: clock support enet2 anatop clock supportPeng Fan
To i.MX6SX/UL, two ethernet interfaces are supported. Add ENET2 clock support: 1. Introduce a new input parameter "fec_id", only 0 and 1 are allowed. To value 1, only i.MX6SX/UL can pass the check. 2. Modify board code who use this api to follow new api prototype. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Heiko Schocher <hs@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefan Roese <sr@denx.de> Cc: Nikolaos Pasaloukos <Nikolaos.Pasaloukos@imgtec.com> Cc: Stefano Babic <sbabic@denx.de> Reviewed-by: Stefan Roese <sr@denx.de>
2015-09-02imx-common: consolidate macros and prototypes into sys_proto.hPeng Fan
Move most macro definitions and prototypes into "arch/arm/include/asm/imx-common/sys_proto.h" to avoid duplicated function prototypes and marco definitions for different i.MX SoCs. This patch do not remove the sys_proto.h for different i.MX SoCs, because we need to modify lots of driver code and others. This patch remove duplicated macros and prototypes and incude "sys_proto.h" of imx-common for each sys_proto.h of different i.MX platforms. Then later we should avoid add stuff in sys_proto.h of each platform, and modify driver to include common sys_proto.h. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Reviewed-by: Stefano Babic <sbabic@denx.de>
2015-09-02imx: mxs: reimplement get_cpu_revPeng Fan
Rewrite get_cpu_rev, from "static const char *get_cpu_rev(void)" to "u32 get_cpu_rev(void)". To align with get_cpu_rev of other i.MXes. Also write get_imx_type to replace get_cpu_type, since we have macro named get_cpu_type. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Reviewed-by: Stefano Babic <sbabic@denx.de>
2015-09-02imx: mx31 use new formula for get_cpu_revPeng Fan
Use new formula for get_cpu_rev, since we need to use this formula to do runtime check for all i.MXes. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Reviewed-by: Stefano Babic <sbabic@denx.de>
2015-09-02imx: mx27 implement get_cpu_revPeng Fan
Implement get_cpu_rev to support runtime check using is_cpu_type. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Reviewed-by: Stefano Babic <sbabic@denx.de>
2015-09-02imx: add cpu type for i.MX2 and i.MX3Peng Fan
Add cpu types for i.MX2/3. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Reviewed-by: Stefano Babic <sbabic@denx.de>
2015-09-02imx: mx6 move TARGET_xx Kconfig option to mx6 specific Kconfig filePeng Fan
Move TARGET_xx Kconfig option based on mx6 to arch/arm/cpu/armv7/mx6/Kconfig. Add enable "CONFIG_ARCH_MX6" for boards based on mx6. Then we can choose target boards using "make ARCH=arm menuconfig" with ARCH_MX6 defined. If using original way, we have no chance to enable ARCH_MX6 when "make menuconfig". Even define CONFIG_ARCH_MX6=y in xx_defconfig, kconfig will complains "arch/../configs/platinum_titanium_defconfig:3: warning: override: TARGET_PLATINUM_TITANIUM changes choice state" Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Heiko Schocher <hs@denx.de> Cc: Tim Harvey <tharvey@gateworks.com> Cc: Eric Bénard <eric@eukrea.com> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Eric Nelson <eric.nelson@boundarydevices.com> Cc: Marek Vasut <marex@denx.de> Cc: Christian Gmeiner <christian.gmeiner@gmail.com> Cc: Stefan Roese <sr@denx.de> Cc: Soeren Moch <smoch@web.de> Cc: Otavio Salvador <otavio@ossystems.com.br> Acked-by: Stefano Babic <sbabic@denx.de> Acked-by: Soeren Moch <smoch@web.de> Acked-by: Otavio Salvador <otavio@ossystems.com.br> Acked-by: Christian Gmeiner <christian.gmeiner@gmail.com>
2015-09-02mxs_ocotp: Shift the HBUS divider correctlyChris Smith
When the original HBUS divider value is retrieved in mxs_ocotp_scale_hclk() for the purpose or restoring it back later, the value is not shifted by the HBUS divider offset in that register. This is not a problem, since the shift is zero on all MXS hardware. Add the shift anyway, for completeness and in case FSL ever decides to re-use this driver on future designs. Signed-off-by: Chris Smith <chris@zxdesign.info> Signed-off-by: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de>
2015-09-02ARM: ts4800: add ethernet supportDamien Riegel
This commit adds ethernet support to the TS4800. Note that the MAC address is not fused on this board and have to be read from FEC PALR PAUR registers (this is how the kernel provided by Technologic Systems does it). signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com> Cc: Stefano Babic <sbabic@denx.de>
2015-09-02ARM: ts4800: add basic board supportLucile Quirion
This commit adds basic support including: MMC, Serial console, TS4800 watchdog The config use CONFIG_SKIP_LOWLEVEL_INIT as U-boot is used as a second stage bootloader. Signed-off-by: Lucile Quirion <lucile.quirion@savoirfairelinux.com> signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com> Cc: Stefano Babic <sbabic@denx.de>
2015-09-02nitrogen6x: change maintainerEric Nelson
Troy Kisky will be maintaining the Nitrogen6x board going forward. Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com> Acked-by: Troy Kisky <troy.kisky@boundarydevices.com>
2015-09-02cgtqmx6eval: Add Ethernet supportOtavio Salvador
cgtqmx6eval can be populated with a AR8035 or KSZ9031 depending on the board revision. Add Ethernet support. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
2015-09-02arm: mxs: Fix mkimage invocationMarek Vasut
Remove this ad-hoc mkimage invocation in MXS Makefile and replace it with the standard mkimage rule instead. This patch fixes recent build issues introduced by the patch 92a655c mkimage: Set up a file size parameter and keep it updated These build issues could be triggered by building for example the MX28EVK and the u-boot.sb image: $ make mx28evk_defconfig $ make V=1 u-boot.sb [...] make -f ./scripts/Makefile.build obj=arch/arm/cpu/arm926ejs/mxs u-boot.sb ./tools/mkimage -n arch/arm/cpu/arm926ejs/mxs/mxsimage.mx28.cfg -T mxsimage u-boot.sb ./tools/mkimage: Can't open (null): Bad address arch/arm/cpu/arm926ejs/mxs/Makefile:82: recipe for target 'u-boot.sb' failed make[1]: *** [u-boot.sb] Error 1 Makefile:989: recipe for target 'u-boot.sb' failed make: *** [u-boot.sb] Error 2 With this patch: ./tools/mkimage -n arch/arm/cpu/arm926ejs/mxs/mxsimage.mx28.cfg -T mxsimage -d arch/arm/cpu/arm926ejs/mxs/mxsimage.mx28.cfg u-boot.sb Signed-off-by: Marek Vasut <marex@denx.de> Cc: Simon Glass <sjg@chromium.org> Cc: Juha Lumme <juha.lumme@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-09-02tools: mxsboot: calculate ECC block level dynamicallyJörg Krause
For pages of 2048 bytes the current setting of the ECC Error Correction Level is only true for an oob size of 64 bytes and wrong for all others. Instead of hard-coding every possible combination of page size and oob size use the dynamic calculation of the ECC strength introduced in commit 6121560d7714d6d8e41ce1687a1388a1a8fea4cb. Cc: Marek Vasut <marex@denx.de> Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks> Acked-by: Marek Vasut <marex@denx.de> Reviewed-by: Stefano Babic <sbabic@denx.de>
2015-09-02imx: mx6ul_14x14_evk discard redefined CONFIG_MX6Peng Fan
Discard CONFIG_MX6 in mx6ul_14x14_evk.h, since it is already defined in mx6_common.h. Tested on mx6ul_14x14_evk board. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Reviewed-by: Stefano Babic <sbabic@denx.de>
2015-09-02arm: mx6: Remove SPI support from WRU-IV baseboardStefan Roese
This patch removes the SPI support from the WRU-IV baseboard as its not used at all. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Clemens Gruber <clemens.gruber@pqgruber.com> Cc: Markus Niebel <Markus.Niebel@tq-group.com> Cc: Stefano Babic <sbabic@denx.de> Tested-by: Clemens Gruber <clemens.gruber@pqgruber.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
2015-09-02udoo: Remove SPL fat supportvpeter4
Use dd'ed SPL and u-boot.img by default. Signed-off-by: Peter Vicman <peter.vicman@gmail.com> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Reviewed-by: Stefano Babic <sbabic@denx.de> Acked-by: Fabio Estevam <fabio.estevam@freescale.com>
2015-09-02udoo: Switch to SPL supportvpeter4
Currently we need to build one U-boot image for each of the udoo variants: quad and dual-lite. By switching to SPL we can support all two variants with a single binary. Based on the SPL for wandboard. Tested with OpenELEC (Open Embedded Linux Entertainment Center) on both boards. Signed-off-by: Peter Vicman <peter.vicman@gmail.com> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Acked-by: Stefano Babic <sbabic@denx.de> Signed-off-by: Peter Vicman <peter.vicman@gmail.com> Acked-by: Fabio Estevam <fabio.estevam@freescale.com>
2015-09-02tools/imximage: set DCD pointer to NULL when its length is 0Baruch Siach
When dcd_len is 0 the Write Data command that the set_dcd_rst_v2() routine generates is empty. This causes HAB to complain that the command is invalid. --------- HAB Event 1 ----------------- event data: 0xdb 0x00 0x0c 0x41 0x33 0x06 0xc0 0x00 0xcc 0x00 0x04 0x04 To fix this set the DCD pointer in the IVT to NULL in this case. The DCD header itself is still needed for detect_imximage_version() to determine the image version. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Acked-by: Stefano Babic <sbabic@denx.de>
2015-08-31Merge branch 'master' of http://git.denx.de/u-boot-sunxiTom Rini
2015-08-31Merge git://git.denx.de/u-boot-dmTom Rini
2015-08-31sunxi: increase SYS_MONITOR_LENBoris Brezillon
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-08-31dts: fix dependency of OF_SPL_REMOVE_PROPSMasahiro Yamada
This should depend on SPL_OF_CONTROL (it is not equivalent to SPL && OF_CONTROL). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-08-31pinctrl: sandbox: add sandbox pinctrl driverMasahiro Yamada
This driver actually does nothing but test pinctrl uclass, and demonstrate how things work. To try this driver, uncomment /* #define DEBUG */ in the drivers/pinctrl/pinctrl-sandbox.c, and debug messages will be displayed. DRAM: 128 MiB sandbox pinmux: group = 1 (serial_a), function = 1 (serial) Using default environment In: cros-ec-keyb Out: lcd Err: lcd Net: Net Initialization Skipped eth0: eth@10002000, eth1: eth@80000000, eth5: eth@90000000 => i2c dev 0 Setting bus to 0 sandbox pinmux: group = 0 (i2c), function = 0 (i2c) sandbox pinconf: group = 0 (i2c), param = 3, arg = 1 Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-08-31pinctrl: add pin control uclass supportMasahiro Yamada
This creates a new framework for handling of pin control devices, i.e. devices that control different aspects of package pins. This uclass handles pinmuxing and pin configuration; pinmuxing controls switching among silicon blocks that share certain physical pins, pin configuration handles electronic properties such as pin- biasing, load capacitance etc. This framework can support the same device tree bindings, but if you do not need full interface support, you can disable some features to reduce memory foot print. Typically around 1.5KB is necessary to include full-featured uclass support on ARM board (CONFIG_PINCTRL + CONFIG_PINCTRL_FULL + CONFIG_PINCTRL_GENERIC + CONFIG_PINCTRL_PINMUX), for example. We are often limited on code size for SPL. Besides, we still have many boards that do not support device tree configuration. The full pinctrl, which requires OF_CONTROL, does not make sense for those boards. So, this framework also has a Do-It-Yourself (let's say simple pinctrl) interface. With CONFIG_PINCTRL_FULL disabled, the uclass itself provides no systematic mechanism for identifying the peripheral device, applying pinctrl settings, etc. They must be done in each low-level driver. In return, you can save much memory footprint and it might be useful especially for SPL. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-08-31dm: core: allow device_bind() to not return a device pointerMasahiro Yamada
This is useful when we want to bind a device, but do not need the pointer to the device. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Simon Glass <sjg@chromium.org>
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