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* ARM: mxs: Setup stack in JTAG modeMarek Vasut2013-10-17-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | In case the MX23/MX28 is switched into JTAG mode via the BootMode select switches, the BootROM bypasses the CPU core registers initialization. This in turn means that the Stack Pointer (SP) register is not set as it is in every other mode of operation, but instead is only zeroed out. To prevent U-Boot SPL from crashing in this obscure JTAG mode, configure the SP to point at the CONFIG_SYS_INIT_SP_ADDR if the SP is zeroed out. Note that in case the SP is already configured, we must preserve that exact SP value and must not modify it. This is important since in every other mode but the JTAG mode, the SPL returns into the BootROM and BootROM in turn loads U-Boot itself. If the SP were to be corrupted, the BootROM won't be able to continue it's operation after returned from SPL and the system would crash. Finally, add the JTAG mode switch identifier, so it's not recognised as Unknown mode. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Otavio Salvador <otavio@ossystems.com.br>
* ARM: mxs: Receive r0 and r1 passed from BootROMMarek Vasut2013-09-10-2/+3
| | | | | | | | | | | | | | | | | Make sure value in register r0 and r1 is preserved and passed to the board_init_ll() and mxs_common_spl_init() where it can be processed further. The value in r0 can be configured during the BootStream generation to arbitary value, r1 contains pointer to return value from CALL'd function. This patch also clears the value in r0 before returning to BootROM to make sure the BootROM is not confused by this value. Finally, this patch cleans up some comments in the start.S file. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de>
* ARM: mxs: Added application UART driverAndreas Wass2013-08-21-0/+220
| | | | | | | | | | The driver makes it possible to use an application UART as the U-Boot output console for Freescale i.MX23/i.MX28 devices. Signed-off-by: Andreas Wass <andreas.wass@dalelven.com> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Marek Vasut <marex@denx.de> Acked-by: Marek Vasut <marex@denx.de>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-293/+21
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* arm: mxs: Add LCDIF registers for i.MX233Marek Vasut2013-05-06-9/+27
| | | | | | | | | Extend the regs-lcdif.h with registers for i.MX233. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Stefano Babic <sbabic@denx.de>
* arm: mxs: Add LCDIF clock configuration functionMarek Vasut2013-05-06-0/+1
| | | | | | | | | | | This function turns on the LCDIF clock and configures it's frequency. The dividers settings are calculated within the function and the current implementation should be fast and accurate. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Stefano Babic <sbabic@denx.de>
* mx23: Fix pad voltage selection bitFabio Estevam2013-05-05-0/+4
| | | | | | | | | | | | | | | | On mx23 the pad voltage selection bit needs to be always '0', since '1' is a reserved value. For example: Pin 108, EMI_A06 pin voltage selection: 0= 1.8V (mDDR) or 2.5V (DDR1); 1= reserved. Fix the pad voltage definitions for the mx23 case. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Marek Vasut <marex@denx.de>
* imx: Move some header files from arch-mxs to imx-commonStefan Roese2013-04-22-1302/+16
| | | | | | | | | | | | | | | | | | | The following headers are moved to a i.MX common location: - regs-common.h - regs-apbh.h - regs-bch.h - regs-gpmi.h - dma.h This way this header can be re-used also by other i.MX platforms. For example the i.MX6 which will need it for the upcoming NAND support. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com>
* mxs: timrot: Add support to i.MX23Fadil Berisha2013-03-07-0/+101
| | | | | | | | | | | | | | This patch add timer support to i.MX23 and complete bit fields and values on regs-timrot.h. Testet on imx23-olinuxino board. Signed-off-by: Fadil Berisha <f.koliqi@gmail.com> Acked-by: Marek Vasut <marex@denx.de> Cc: Marek Vasut <marex@denx.de> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Acked-by: Otavio Salvador <otavio@ossystems.com.br>
* mxs: Fix iomux.h to not break build during assembly stageOtavio Salvador2013-03-07-0/+5
| | | | | | | | This fixes the build failure when included in mx23_olinuxino.h board config; the addition of "asm/types.h" is due "u32" being otherwise undefined. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
* mxs: Squash the header file usage in ehci-mxsMarek Vasut2013-03-07-0/+2
| | | | | | | | | | | | The ehci-mxs driver included the register definitions directly. Use imx-regs.h instead since it contains proper handling of the differences between mx23 and mx28. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Stefano Babic <sbabic@denx.de> Acked-by: Otavio Salvador <otavio@ossystems.com.br>
* mxs: mmc: spi: dma: Better wrap the MXS differencesMarek Vasut2013-03-07-1/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch streamlines the differences between the MX23 and MX28 by implementing a few helper functions to handle different DMA channel mapping, different clock domain for SSP block and fixes a few minor bugs. First of all, the DMA channel mapping is now fixed in dma.h by defining the actual channel map for both MX23 and MX28. Thus, MX23 now does no longer use MX28 channel map which was wrong. Also, there is a fix for MX28 DMA channel map, where the last four channels were incorrect. Next, because correct DMA channel map is in place, the mxs_dma_init_channel() call now bases the channel ID starting from SSP port #0. This removes the need for DMA channel offset being added and cleans up the code. For the same reason, the SSP0 offset can now be used in mxs_dma_desc_append(), thus no need to adjust dma channel number in the driver either. Lastly, the SSP clock ID is now retrieved by calling mxs_ssp_clock_by_bus() which handles the fact that MX23 has shared SSP clock for both ports, while MX28 has per-port SSP clock. Finally, the mxs_ssp_bus_id_valid() pulls out two implementations of the same functionality from MMC and SPI driver into common code. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Stefano Babic <sbabic@denx.de>
* mxs: mmc: Allow overriding default card detect implementationMarek Vasut2013-01-28-1/+1
| | | | | | | | | | Some MXS based boards do not implement the card-detect signal. Allow user to specify alternate card-detect implementation. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de>
* mxs: ssp: Add SSP registers map for MX23Marek Vasut2013-01-28-0/+36
| | | | | | | | | | The MX23 SSP register layout differs from MX28 in certain bits, adjust the register layout accordingly. Signed-off-by: Marek Vasut <marex@denx.de> Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de>
* mxs: dma: Fix APBH DMA driver for MX23Marek Vasut2013-01-28-0/+121
| | | | | | | | | | | The MX23 has less channels for the APBH DMA, sligtly different register layout and some bits in those registers are placed differently. Reflect this in the driver. This patch fixes MMC/DMA issue on MX23. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de>
* mxs: Add MX23 quirks into the clock codeOtavio Salvador2013-01-21-2/+6
| | | | | | | | | | The MX23 has different handling of the SSP clock and GPMI NAND clock sources, add necessary quirks into the clock code to properly handle these. Signed-off-by: Marek Vasut <marex@denx.de> Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de>
* mx23: Add boot mode descriptionOtavio Salvador2013-01-21-0/+12
| | | | | | | Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Stefano Babic <sbabic@denx.de>
* mx23: Add support on print_cpuinfo()Otavio Salvador2013-01-21-0/+1
| | | | | | | | | Add information to identify i.MX23 chips and its known revisions. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de>
* mx23: ssp: Fix ssp-regs.h for MX23Marek Vasut2013-01-21-0/+2
| | | | | | | | | Disable SSP2 and SSP3 ports on MX23. Signed-off-by: Marek Vasut <marex@denx.de> Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de>
* mx23: Add POWER and CLKCTRL register definitionsMarek Vasut2013-01-21-1/+585
| | | | | | | | | | | Add register definitions for the i.MX23 power control block and clock control block. These are essential for the basic bootstrap of the i.MX23. Also, properly include them in imx-regs.h . Signed-off-by: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Stefano Babic <sbabic@denx.de>
* mx23: Add iomux-mx23.hOtavio Salvador2013-01-21-0/+361
| | | | | | | | | This has been copied from Linux source at revision 786f02b719f. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de>
* mx23: Add register base addressesOtavio Salvador2013-01-21-5/+51
| | | | | | | | | | | This adds the base addresses of i.MX23 and easy the detection of wrong order in board setup, in case no SoC has been set, an error is raised during build. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de>
* mxs: clock: Use 'mxs' prefix for methodsOtavio Salvador2013-01-21-3/+3
| | | | | | | Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de>
* mxs: ssp: Pull out the SSP bus to regs conversionMarek Vasut2013-01-21-0/+16
| | | | | | | | | | | | | Create function which converts SSP bus number to SSP register pointer. This functionality is reimplemented multiple times in the code, thus make one common implementation. Moreover, make it a switch(), since the SSP ports are not mapped in such nice linear fashion on MX23, therefore having it a switch will simplify things there. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andy Fleming <afleming@freescale.com> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de>
*-. Merge samsung, imx, tegra into u-boot-arm/masterAlbert ARIBAUD2012-12-22-4/+10
|\ \ | | | | | | | | | | | | | | | This commit merges branches from samsung, imx and tegra meant to fix merge issues between u-boot/master and u-boot-arm/master, as well as a few manual merge fixes.
| | * Merge remote-tracking branch 'u-boot/master' into u-boot-arm-mergedAllen Martin2012-12-19-0/+1
| | |\ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: README arch/arm/cpu/armv7/exynos/clock.c board/samsung/universal_c210/universal.c drivers/misc/Makefile drivers/power/power_fsl.c include/configs/mx35pdk.h include/configs/mx53loco.h include/configs/seaboard.h
| | * mxs: i2c: Implement algorithm to set up arbitrary i2c speedMarek Vasut2012-12-11-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This algorithm computes the values of TIMING{0,1,2} registers for the MX28 I2C block. This algorithm was derived by using a scope, but the result seems correct. The resulting values programmed into the registers do not correlate with the contents in datasheet. When using the values from the datasheet, the I2C clock were completely wrong. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Wolfgang Denk <wd@denx.de>
| * | mx28: Rename regs-power.h to regs-power-mx28.hMarek Vasut2012-12-04-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The i.MX23 has different register layout and bit placement in the power supply. Thus, in order to be able to add support for MX23, rename the MX28's regs-power.h to regs-power-mx28.h . Moreover, add ifdef around inclusion of regs-*-mx28.h in imx-regs.h so the MX23 boards will include proper set of registers. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de>
| * | mx28: Remove SET, CLR, TOG ops from PLLxCTRL1 registersMarek Vasut2012-12-04-2/+4
|/ / | | | | | | | | | | | | | | | | | | These registers don't have _SET, _CLR and _TOG at the respective offsets available, these registers has to be toggled via R-M-W if needed. Thus do not export these offsets anymore. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de> Acked-by: Otavio Salvador <otavio@ossystems.com.br>
* | mx28: Fix typo in POWER_DCLIMITS_NEGLIMIT_OFFSETMarek Vasut2012-11-24-1/+1
| | | | | | | | | | | | | | | | | | The POWER_DCLIMITS_NEGLIMIT_OFFSET bit in mx28 power supply block is not called POWER_DCLIMITS_NETLIMIT_OFFSET, but POWER_DCLIMITS_NEGLIMIT_OFFSET. Correct the name in the header file. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de>
* | mx28: Fix typo in POWER_MINPWR_VBG_OFFMarek Vasut2012-11-24-1/+1
|/ | | | | | | | | The POWER_MINPWR_VBG_OFF bit in mx28 power supply block is not called POWER_MINPWR_FBG_OFF, but POWER_MINPWR_VBG_OFF. Correct the name in the header file. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Stefano Babic <sbabic@denx.de>
* mxs: Convert timeout parameter to 'unsigned int'fabio.estevam@freescale.com2012-09-01-2/+2
| | | | | | | | | For representing a timeout value, it makes more sense to pass it as 'unsigned int'. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Marek Vasut <marex@denx.de> Acked-by: Stefano Babic <sbabic@denx.de>
* MX28: DMA: Align the struct mxs_dma_descMarek Vasut2012-09-01-1/+2
| | | | | | | | | Align this structure to DMA alignment size. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Stefano Babic <sbabic@denx.de>
* mxs: Rename 'mx28_dram_init' to 'mxs_dram_init'Otavio Salvador2012-09-01-1/+1
| | | | | | | | | | | | | | | | The DRAM initialization, after SPL has complete, is exactly the same for all mxs SoCs so we should name it accordinly. The following boards has been changed: * apx4devkit * m28evk * mx28evk * sc_sps_1 Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Acked-by: Marek Vasut <marex@denx.de> Acked-by: Veli-Pekka Peltola <veli-pekka.peltola@bluegiga.com>
* mxs: Replace i.MX233 by i.MX23 on copyright headerOtavio Salvador2012-09-01-1/+1
| | | | | | | All other header are going to use i.MX23 so we change this for consistency. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
* mxs: Use correct function name to initialize dramFabio Estevam2012-09-01-1/+1
| | | | | | | | | | | | | | commit d92591a (mxs: Convert sys_proto.h prefixes to 'mxs') introduced a mxs_dram_init() function, which is not used anywhere. Fix it, so that the following warning goes away: mx28evk.c: In function ‘dram_init’: mx28evk.c:67:2: warning: implicit declaration of function ‘mx28_dram_init’ [-Wimplicit-function-declaration] Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Marek Vasut <marex@denx.de> Acked-by: Otavio Salvador <otavio@ossystems.com.br>
* mxs: Convert sys_proto.h prefixes to 'mxs'Otavio Salvador2012-09-01-10/+10
| | | | | | | The sys_proto.h functions (except the boot modes) are compatible with i.MX233 and i.MX28 so we use 'mxs' prefix for its methods. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
* mxs: rename regs-clkctrl.h to regs-clkctrl-mx28.hOtavio Salvador2012-09-01-1/+1
| | | | | | | The CLKCTRL registers are SoC specific so we ought to have it clear on filename. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
* mxs: Reowork SPL to use 'mxs' prefix for methodsOtavio Salvador2012-09-01-2/+2
| | | | Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
* mxs: prefix register structs with 'mxs' prefixOtavio Salvador2012-09-01-16/+16
| | | | Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
* mxs: prefix register acessor macros with 'mxs' prefixOtavio Salvador2012-09-01-509/+509
| | | | | | | As the register accessing mode is the same for all i.MXS SoCs we ought to use 'mxs' prefix intead of 'mx28'. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
* mxs: reorganize source directory for easy sharing of code in i.MXS SoCsOtavio Salvador2012-09-01-0/+6287
Most code can be shared between i.MX23 and i.MX28 as both are from i.MXS family; this source directory structure makes easy to share code among them. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Acked-by: Stefano Babic <sbabic@denx.de>
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