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* imx: imx6ull: adjust the ldo 1.2v bandgap voltagePeng Fan2016-10-04-0/+6
| | | | | | | | | | Per to design team, on i.MX6UL, the LDO 1.2V bandgap voltage is 30mV higher, so we need to adjust the REFTOP_VBGADJ(anatop MISC0 bit[6:4]) setting to 2b'110. Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Bai Ping <ping.bai@nxp.com> Cc: Stefano Babic <sbabic@denx.de>
* imx: mx6ull: update clock settings and CCM register mapPeng Fan2016-10-04-22/+37
| | | | | | | | Update Clock settings and CCM register map for i.MX6ULL. Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Ye Li <ye.li@nxp.com> Cc: Stefano Babic <sbabic@denx.de>
* imx: mx6ull: adjust POR_B setting for i.MX6ULLPeng Fan2016-10-04-0/+14
| | | | | | | | | | | | | | Adjust POR_B settings on i.MX6ULL according to IC design team's suggestion: 2'b00 : always PUP100K 2'b01 : PUP100K when PMIC_ON_REQ || SOC_NOT_FAIL 2'b10 : always disable PUP100K 2'b11 : PDN100K when SOC_FAIL, PUP100K when SOC_NOT_FAIL -- recommended setting Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Cc: Stefano Babic <sbabic@denx.de>
* imx: mx6ull: misc soc updatePeng Fan2016-10-04-4/+4
| | | | | | | | | | Update misc SOC related settings for i.MX6ULL, such as FEC mac address, cpu speed grading and mmdc channel mask clearing. Also update s_init to skip pfd reset. Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Stefano Babic <sbabic@denx.de>
* imx: mx6ul: using runtime check when configuring PMIC_STBY_REQPeng Fan2016-10-04-1/+1
| | | | | | | | | Since MX6ULL select MX6UL, we can not use IS_ENABLED(CONFIG_MX6UL) here, because this piece code is only for i.MX6UL. Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Stefano Babic <sbabic@denx.de> Reviewed-by: Stefano Babic <sbabic@denx.de>
* imx: mx6ull: skip setting ahb clockPeng Fan2016-10-04-1/+1
| | | | | | | | | Rom already initialized clock at 396M and 132M for arm core and ahb, so skip setting them again in U-Boot. Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Stefano Babic <sbabic@denx.de> Reviewed-by: Stefano Babic <sbabic@denx.de>
* imx: mx6ull: add kconfig entry for MX6ULLYe Li2016-10-04-0/+4
| | | | | | | | | i.MX6ULL is derivative from i.MX6UL, so select MX6UL for MX6ULL. If need to differenate MX6ULL from MX6UL, use CONFIG_MX6ULL Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Ye Li <ye.li@nxp.com> Cc: Stefano Babic <sbabic@denx.de>
* treewide: replace #include <asm/errno.h> with <linux/errno.h>Masahiro Yamada2016-09-23-3/+3
| | | | | | | | | | | Now, arch/${ARCH}/include/asm/errno.h and include/linux/errno.h have the same content. (both just wrap <asm-generic/errno.h>) Replace all include directives for <asm/errno.h> with <linux/errno.h>. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> [trini: Fixup include/clk.] Signed-off-by: Tom Rini <trini@konsulko.com>
* mx6: ddr: Allow changing REFSEL and REFR fieldsFabio Estevam2016-09-06-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently MX6 SPL DDR initialization hardcodes the REF_SEL and REFR fields of the MDREF register as 1 and 7, respectively for DDR3 and 0 and 3 for LPDDR2. Looking at the MDREF initialization done via DCD we see that boards do need to initialize these fields differently: $ git grep 0x021b0020 board/ board/bachmann/ot1200/mx6q_4x_mt41j128.cfg:DATA 4 0x021b0020 0x00005800 board/ccv/xpress/imximage.cfg:DATA 4 0x021b0020 0x00000800 /* MMDC0_MDREF */ board/freescale/mx6qarm2/imximage.cfg:DATA 4 0x021b0020 0x7800 board/freescale/mx6qarm2/imximage.cfg:DATA 4 0x021b0020 0x00005800 board/freescale/mx6qarm2/imximage_mx6dl.cfg:DATA 4 0x021b0020 0x00005800 board/freescale/mx6qarm2/imximage_mx6dl.cfg:DATA 4 0x021b0020 0x00005800 board/freescale/mx6qsabreauto/imximage.cfg:DATA 4 0x021b0020 0x00005800 board/freescale/mx6qsabreauto/mx6dl.cfg:DATA 4 0x021b0020 0x00005800 board/freescale/mx6qsabreauto/mx6qp.cfg:DATA 4 0x021b0020 0x00005800 board/freescale/mx6sabresd/mx6dlsabresd.cfg:DATA 4 0x021b0020 0x00005800 board/freescale/mx6sabresd/mx6q_4x_mt41j128.cfg:DATA 4 0x021b0020 0x00005800 board/freescale/mx6slevk/imximage.cfg:DATA 4 0x021b0020 0x00001800 board/freescale/mx6sxsabreauto/imximage.cfg:DATA 4 0x021b0020 0x00000800 board/freescale/mx6sxsabresd/imximage.cfg:DATA 4 0x021b0020 0x00000800 board/warp/imximage.cfg:DATA 4 0x021b0020 0x00001800 So introduce a mechanism for users to be able to configure REFSEL and REFR fields as needed. Keep all the mx6 SPL users in their current REF_SEL and REFR values, so no functional changes for the existing users. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Eric Nelson <eric@nelint.com>
* arm: imx: Add support for Advantech DMS-BA16 boardAkshay Bhat2016-09-06-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for Advantech DMS-BA16 board. The board is based on Advantech BA16 module which has a i.MX6D processor. The board supports: - FEC Ethernet - USB Ports - SDHC and MMC boot - SPI NOR - LVDS and HDMI display Basic information about the module: - Module manufacturer: Advantech - CPU: Freescale ARM Cortex-A9 i.MX6D - SPECS: Up to 2GB Onboard DDR3 Memory; Up to 16GB Onboard eMMC NAND Flash Supports OpenGL ES 2.0 and OpenVG 1.1 HDMI, 24-bit LVDS 1x UART, 2x I2C, 8x GPIO, 4x Host USB 2.0 port, 1x USB OTG port, 1x micro SD (SDHC),1x SDIO, 1x SATA II, 1x 10/100/1000 Mbps Ethernet, 1x PCIe X1 Gen2 Signed-off-by: Akshay Bhat <akshay.bhat@timesys.com> Cc: u-boot@lists.denx.de Cc: sbabic@denx.de
* mx6: clock: Fix the logic for reading axi_alt_selFabio Estevam2016-07-20-2/+2
| | | | | | | | | | | | | According to the IMX6DQRM Reference Manual, the description of bit 7 (axi_alt_sel) of the CCM_CBCDR register is: "AXI alternative clock select 0 pll2 396MHz PFD will be selected as alternative clock for AXI root clock 1 pll3 540MHz PFD will be selected as alternative clock for AXI root clock " The current logic is inverted, so fix it to match the reference manual. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
* imx6: clock: typo fixPeng Fan2016-07-12-1/+1
| | | | | | | Typo fix, "PPL2 -> PLL2" Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Stefano Babic <sbabic@denx.de>
* mx6: Add Phytec PCM058 i.MX6 QuadStefano Babic2016-07-12-0/+5
| | | | | | | | | | | | | | | Add Phytec-i.MX6 SOM with NAND Support: - 1GB RAM - Ethernet - SPI-NOR Flash - NAND (1024 MB) - external SD - UART Signed-off-by: Stefano Babic <sbabic@denx.de> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
* mx6: add support for el6x boardStefano Babic2016-07-12-0/+13
| | | | | | | | | Custom Board based on MX6 Dual, 1GB RAM and eMMC. There are two variants of the board with and without PCIe (ZC5202 and ZC5601). Signed-off-by: Stefano Babic <sbabic@denx.de>
* imx: mx6: correct get_cpu_speed_grade_hz for i.MX6DQPPeng Fan2016-05-24-2/+2
| | | | | | | | Correct get_cpu_speed_grade_hz for i.MX6DQP, otherwise we will get wrong speed grade info i.MX6DQP. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Stefano Babic <sbabic@denx.de>
* imx: mx6: ddr: support i.MX6D/QPlusPeng Fan2016-05-24-2/+2
| | | | | | | Support i.MX6D/QPlus. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Stefano Babic <sbabic@denx.de>
* imx: mx6: use simpler runtime cpu dection macrosPeng Fan2016-05-24-36/+29
| | | | | | | | Use simpler runtime cpu dection macros. i.MX6DL and i.MX6SOLO work the same, so use is_mx6sdl. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Stefano Babic <sbabic@denx.de>
* imx: mx6: support i.MX6SOLO when enable/disable_ldb_di_clock_sourcesPeng Fan2016-05-24-2/+2
| | | | | | | | i.MX6DL and i.MX6SOLO work the same, add i.MX6SOLO support when enable/disable_ldb_di_clock_sources. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Stefano Babic <sbabic@denx.de>
* imx: correct speed grading info for i.MX6ULPeng Fan2016-05-18-0/+15
| | | | | | | Correct speed grading info for i.MX6UL Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Stefano Babic <sbabic@denx.de>
* Add initial support for Technexion's PICO-IMX6UL-EMMC boardFabio Estevam2016-04-19-0/+5
| | | | | | | | | | Add support for Technexion's PICO-IMX6UL-EMMC board. For information about this board, please visit: http://www.technexion.com/products/pico/pico-som/pico-imx6-emmc Signed-off-by: Richard Hu <richard.hu@technexion.com> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
* imx: mx6: Fix procedure to switch the parent of LDB_DI_CLKAkshay Bhat2016-04-19-0/+151
| | | | | | | | | | | | | | | | | | | | | Due to incorrect placement of the clock gate cell in the ldb_di[x]_clk tree, the glitchy parent mux of ldb_di[x]_clk can cause a glitch to enter the ldb_di_ipu_div divider. If the divider gets locked up, no ldb_di[x]_clk is generated, and the LVDS display will hang when the ipu_di_clk is sourced from ldb_di_clk. To fix the problem, both the new and current parent of the ldb_di_clk should be disabled before the switch. This patch ensures that correct steps are followed when ldb_di_clk parent is switched in the beginning of boot. This patch was ported from the 3.10.17 NXP kernel http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/commit/?h=imx_3.10.17_1.0.1_ga&id=eecbe9a52587cf9eec30132fb9b8a6761f3a1e6d NXP errata number: ERR009219, EB821 Signed-off-by: Akshay Bhat <akshay.bhat@timesys.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@nxp.com>
* imx: mx6sx: move MX6SX to Kconfig entryPeng Fan2016-03-26-0/+2
| | | | | | | | | | | If including MX6SX in CONFIG_SYS_EXTRA_OPTIONS, CONFIG_ROM_UNIFIED_SECTIONS will not effect.So move MX6SX to Kconfig entry from CONFIG_SYS_EXTRA_OPTIONS to "select MX6SX" to boards using i.MX6 SoloX. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
* arm: mx6: Add CCV xPress board supportStefan Roese2016-03-26-0/+8
| | | | | | | | | | | | | | | | | | | This patch add support for the CCV xPress board which is equipped with the i.MX6UL. And provides the following interfaces: - 128MiB DDR - UART - I2C - eMMC (with booting) - Ethernet - USB This patch adds two build targets. One with and one without SPL. The non-SPL version is used for loading U-Boot via USB (imx_usb_loader). Signed-off-by: Stefan Roese <sr@denx.de> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Stefano Babic <sbabic@denx.de>
* arm: imx6: Switch DDR3 calibration to wait_for_bit()Marek Vasut2016-03-25-32/+12
| | | | | | | | | Switch the DDR3 calibration from ad-hoc implementation of wait_for_bit() to generic implementation of wait_for_bit(). Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de> Reviewed-by: Stefano Babic <sbabic@denx.de>
* imx: print ARM clock for clocks commandPeng Fan2016-03-25-0/+1
| | | | | | | | | | | | | | | | | Default print ARM clock for clocks command. Test on i.MX6UL 14x14 evk board: " => clocks PLL_SYS 792 MHz PLL_BUS 528 MHz PLL_OTG 480 MHz PLL_NET 50 MHz ARM 396000 kHz " Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Stefano Babic <sbabic@denx.de>
* imx: mx6ul configure the PMIC_STBY_REQ pin as open drainPeng Fan2016-03-25-1/+11
| | | | | | | | | Configure the PMIC_STBY_REQ pin as open drain 100K according to the design team's requirement for the PMIC_STBY_REQ pin for i.MX 6UltraLite TO1.0. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Stefano Babic <sbabic@denx.de>
* imx: mx6ul: skip setting ahb ratePeng Fan2016-03-25-7/+12
| | | | | | | | To i.MX6UL, default ARM rate and AHB rate is 396M and 198M, no need to set them. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Stefano Babic <sbabic@denx.de>
* imx: mx6: Fix incorrect clear mmdc_ch0 handshake maskYe Li2016-03-25-1/+4
| | | | | | | | | | | Since the MX6UL/SL/SX only has one DDR channel, in CCM_CCDR register the bit[17] for mmdc_ch0 is reserved and its proper state should be 1. When clear this bit, the periph_clk_sel cannot be set and that CDHIPR[periph_clk_sel_busy] handshake never clears. Signed-off-by: Ye Li <ye.li@nxp.com> Signed-off-by: Peng Fan <van.freenix@gmail.com> Acked-by: Stefano Babic <sbabic@denx.de>
* Merge branch 'next'Stefano Babic2016-03-20-0/+13
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| * arm: imx: Add support for GE Bx50v3 boardsAkshay Bhat2016-03-09-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for GE B450v3, B650v3 and B850v3 boards. The boards are based on Advantech BA16 module which has a i.MX6D processor. The boards support: - FEC Ethernet - USB Ports - SDHC and MMC boot - SPI NOR - LVDS and HDMI display Basic information about the module: - Module manufacturer: Advantech - CPU: Freescale ARM Cortex-A9 i.MX6D - SPECS: Up to 2GB Onboard DDR3 Memory; Up to 16GB Onboard eMMC NAND Flash Supports OpenGL ES 2.0 and OpenVG 1.1 HDMI, 24-bit LVDS 1x UART, 2x I2C, 8x GPIO, 4x Host USB 2.0 port, 1x USB OTG port, 1x micro SD (SDHC),1x SDIO, 1x SATA II, 1x 10/100/1000 Mbps Ethernet, 1x PCIe X1 Gen2 Signed-off-by: Akshay Bhat <akshay.bhat@timesys.com> Reviewed-by: Peng Fan <peng.fan@nxp.com>
* | imx: mx6: hdmi: handle overflow conditionPeng Fan2016-03-14-1/+12
|/ | | | | | | | | | | | If HDMI_IH_FC_STAT2_OVERFLOW_MASK is set, we need to do TMDS software reset and write to clear fc_invidconf register. We need minimum 3 times to write to clear the fc_invidconf register, so choose 5 loops here. Signed-off-by: Peng Fan <van.freenix@gmail.com> Signed-off-by: Sandor Yu <sandor.yu@nxp.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@nxp.com>
* imx: mx6: implement functions to boot auxiliary corePeng Fan2016-02-21-0/+38
| | | | | | | | | | | | Implement arch_auxiliary_core_up and arch_auxiliary_core_check_up. arch_auxiliary_core_check_up is used to check whether M4 is running or not. arch_auxiliary_core_up is to boot M4 core, the m4 core will use the pc and stack which is set in arch_auxiliary_core_up to set R15 and R13 register and boot. Signed-off-by: Ye.Li <ye.li@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com>
* imx: mx6: Implement mmc_get_env_partSoeren Moch2016-02-21-3/+33
| | | | | | | | | | commit 216d286c7e3d3d83d4d8ccaf0415192e1b1040c0 [imx: mx6: implement mmc_get_env_dev] introduced selection of the environment device according to the boot device when booting from SD/MMC. Extend this functionality for also selecting the device partition. Signed-off-by: Soeren Moch <smoch@web.de>
* imx: mx6: implement mmc_get_env_devPeng Fan2016-02-04-0/+32
| | | | | | | | | | Implement mmc_get_env_dev, devno can be got from smbr1 of SRC. Introduce a weak function board_mmc_get_env_dev, different boards can implement it according to different sdhc controllers that used by the board. Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Stefano Babic <sbabic@denx.de>
* imx: mx6ul/sx: Fix issue in LCDIF clock dividers calculationYe Li2016-02-02-4/+0
| | | | | | | | | | The checking with max frequency supported is not correct, because the temp is calculated by max pre and post dividers. We can decrease any divider to meet the max frequency limitation. Actually, the calculation below the codes is doing this way to find best pre and post dividers. Signed-off-by: Ye Li <ye.li@nxp.com> Reviewed-by: Stefano Babic <sbabic@denx.de>
* imx: mx6sx: Fix issue in LCDIF clock enablementYe Li2016-02-02-2/+2
| | | | | | | | Wrong checking for the base_addr paramter with LCDIF1 and LCDIF2. Always enter the -EINVAL return. Signed-off-by: Ye Li <ye.li@nxp.com> Reviewed-by: Stefano Babic <sbabic@denx.de>
* imx: mx6sxsabreauto: Add support for mx6sx SABREAUTO boardYe Li2016-02-02-0/+6
| | | | | | | Initial version for mx6sx SABREAUTO board support with features: PMIC, QSPI, NAND flash, SD/MMC, USB, Ethernet, I2C, IO Expander. Signed-off-by: Ye Li <ye.li@nxp.com>
* mx6: soc: Add ENET2 mac address supportYe Li2016-02-02-9/+23
| | | | | | | The i.MX6SX and i.MX6UL has two ENET controllers, add support for reading MAC address from fuse for ENET2. Signed-off-by: Ye Li <ye.li@nxp.com>
* arm: imx6: Add DDR3 calibration code for MX6 Q/D/DLMarek Vasut2016-02-02-0/+559
| | | | | | | | | Add DDR3 calibration code for i.MX6Q, i.MX6D and i.MX6DL. This code fine-tunes the behavior of the MMDC controller in order to improve the signal integrity and memory stability. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de>
* imx: mx6ul/sx: fix mmdc_ch0 clk calculationPeng Fan2016-01-24-4/+57
| | | | | | | | | | | | | Check "Figure 19-5. BUS clock generation" of i.MX 6SoloX Applications Processor Reference Manual and "Figure 18-5. BUS clock generation" of i.MX 6UltraLite Applications Processor Reference Manual. If mmdc clk sources from pll4_main_clk(pll_audio), the calculation is wrong. Fix mmdc_ch0 clk calculation. Also add PLL_AUDIO/VIDEO support for decode_pll. Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Stefano Babic <sbabic@denx.de>
* imx: ddr: drop duplicated debug infoPeng Fan2016-01-03-1/+0
| | | | | | | Drop duplicated debug info for tcl. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de>
* imx: mx6: add missing return valueJeroen Hofstee2015-12-07-0/+2
| | | | | | | cc: Peng Fan <Peng.Fan@freescale.com> Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl> Reviewed-by: Peng Fan <Peng.Fan@freescale.com> Reviewed-by: Stefano Babic <sbabic@denx.de>
* mx6: clock: Modify GPMI clock to support mx6sxYe.Li2015-11-25-0/+12
| | | | | | | On mx6sx, the CCM register bits for GPMI are different as other mx6 platforms. Modify the GPMI clock function to support mx6sx. Signed-off-by: Ye.Li <B37916@freescale.com>
* cgtqmx6eval: Add SPL supportOtavio Salvador2015-11-25-0/+3
| | | | | | | | | Congatec has several MX6 boards based on quad, dual, dual-lite and solo. Add SPL support so that all the variants can be supported Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
* imx: mx6: implement reset_miscPeng Fan2015-11-12-0/+7
| | | | | | | | We need to power down lcdif before uboot reset to make reset can pass stress test. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de>
* imx: mx6: add clock api for lcdifPeng Fan2015-11-12-0/+245
| | | | | | | | | Implement mxs_set_lcdclk, enable_lcdif_clock and enable_pll_video. The three API can be used to configure lcdif related clock when CONFIG_VIDEO_MXS enabled. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de>
* arm: imx: add secure boot fuse details for imx6 SoCAdrian Alonso2015-10-30-0/+8
| | | | | | | Add secure boot fuse details (location) bank = 0, word = 6; for imx6 SoC platforms. Signed-off-by: Adrian Alonso <aalonso@freescale.com>
* imx: hab: use unified rom section for mx6sx and mx6ulAdrian Alonso2015-10-30-0/+2
| | | | | | | | | Add CONFIG_ROM_UNIFIED_SECTIONS for mx6sx and mx6ul target platforms to resolve corresponding HAB_RVT_BASE base address, the RVT table contains pointers to the HAB API functions in ROM code. Signed-off-by: Adrian Alonso <aalonso@freescale.com>
* imx: hab: rework secure boot support for imx6Adrian Alonso2015-10-30-503/+0
| | | | | | | Rework secure boot support for imx6, move existing hab support for imx6 into imx-common for SoC reuse. Signed-off-by: Adrian Alonso <aalonso@freescale.com>
* imx: mx6: correct enable_fec_anatop_clockPeng Fan2015-10-02-0/+2
| | | | | | | | | We should follow 'read->set/clr bit->write' flow for enable_fec_anatop_clock, otherwise we may overridden configuration before enable_fec_anatop_clock. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Cc: Fabio Estevam <fabio.estevam@freescale.com>