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* defconfig: Add CONFIG_OF_CONTROL in zynq_picozedJagan Teki2015-07-01-0/+1
| | | | | | Enable FDT support for zynq_picozed board. Signed-off-by: Jagan Teki <jteki@openedev.com>
* spi: Kconfig: Add Zynq SPI controller entryJagan Teki2015-07-01-0/+8
| | | | | | | | | | Add Zynq SPI controller Kconfig entry. Signed-off-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Simon Glass <sjg@chromium.org> Cc: Marek Vasut <marex@denx.de> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
* spi: xilinx_spi: Add asm/io.h include fileJagan Teki2015-07-01-0/+1
| | | | | | | | | | | | | This patch includes asm/io.h for readl and writel calls. build errors: drivers/spi/xilinx_spi.c: In function 'xilinx_spi_probe': drivers/spi/xilinx_spi.c:119:2: warning: implicit declaration of function 'writel' [-Wimplicit-function-declaration] drivers/spi/xilinx_spi.c: In function 'xilinx_spi_xfer': drivers/spi/xilinx_spi.c:193:2: warning: implicit declaration of function 'readl' [-Wimplicit-function-declaration] Signed-off-by: Jagan Teki <jteki@openedev.com> Cc: Michal Simek <michal.simek@xilinx.com>
* dm: spi: xilinx_spi: Convert to driver modelJagan Teki2015-07-01-88/+112
| | | | | | | | This converts the xilinx spi driver to use the driver model. Signed-off-by: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com>
* dts: zynq: Enable spi1 for zc770_xm010 boardJagan Teki2015-07-01-0/+5
| | | | | | | This patch enables spi1 for zynq zc770_xm010 board dts Signed-off-by: Jagan Teki <jteki@openedev.com> Tested-by: Jagan Teki <jteki@openedev.com>
* spi: zynq_spi: Add fdt support in driverJagan Teki2015-07-01-10/+17
| | | | | | | | | | | | | | | | | Now zynq spi driver platform data is controlled by devicetree, enable the status by saying "okay" on respective board dts to use the devicetree generated platdata. Ex: &spi1 { status = "okay"; }; Signed-off-by: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com>
* dts: zynq: Add zynq spi controller nodesJagan Teki2015-07-01-0/+51
| | | | | | | | | | This patch adds zynq spi controller nodes in zynq-7000.dtsi. Signed-off-by: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com>
* zynq: Kconfig: Enable dm spi and spi_flashJagan Teki2015-07-01-0/+2
| | | | | | | | | | Enabled CONFIG_DM_SPI and CONFIG_DM_SPI_FLASH for zynq soc. Signed-off-by: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com>
* dm: spi: zynq_spi: Convert to driver modelJagan Teki2015-07-01-124/+169
| | | | | | | | | | | | | | | | This converts the zynq spi driver to use the driver model. Minimal functional changes like using meaningful name on structure members wrt mainlined dm spi drivers. - input_hz -> frequency - req_hz -> freq - base -> regs Signed-off-by: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com>
* spi/sf: Minor cleanupsJagan Teki2015-07-01-14/+16
| | | | | | | - Adjust tab spaces - Add comments Signed-off-by: Jagan Teki <jteki@openedev.com>
* spi: davinci_spi: Driver cleanupJagan Teki2015-07-01-170/+173
| | | | | | | | | | Arrange driver code in more readable format[1] for easy accessing and readable. [1] http://patchwork.ozlabs.org/patch/265683/ Signed-off-by: Jagan Teki <jteki@openedev.com> Cc: Rex Chang <rchang@ti.com> Cc: Murali Karicheri <m-karicheri2@ti.com>
* spi: davinci_spi: Move header code to driverJagan Teki2015-07-01-122/+109
| | | | | | | | | Move the header code into driver for more readable and easy to access it. Signed-off-by: Jagan Teki <jteki@openedev.com> Cc: Rex Chang <rchang@ti.com> Cc: Murali Karicheri <m-karicheri2@ti.com>
* spi: xilinx_spi: Driver clean-upJagan Teki2015-07-01-107/+57
| | | | | | | | | | | | | | - Zap unneeded macros - Re-arrange the code - Removed __attribute__((weak)) - Replace __func__ macro with func names to save macro transition. - Re-arranged comment lines. - Arrange driver code in more readable format[1] [1] http://patchwork.ozlabs.org/patch/265683/ Signed-off-by: Jagan Teki <jteki@openedev.com> Acked-by: Michal Simek <michal.simek@xilinx.com>
* spi: xilinx_spi: Move header code to driverJagan Teki2015-07-01-139/+112
| | | | | | | | Move the header code into driver for more readable and easy to access it. Signed-off-by: Jagan Teki <jteki@openedev.com> Acked-by: Michal Simek <michal.simek@xilinx.com>
* spi: Zap oc_tiny_spi driverJagan Teki2015-07-01-246/+0
| | | | | | | | Zap oc_tiny_spi driver since the boards used this driver is no longer been active. Signed-off-by: Jagan Teki <jteki@openedev.com> Cc: Thomas Chou <thomas@wytron.com.tw>
* spi: Zap ftssp010_spi driverJagan Teki2015-07-01-499/+0
| | | | | | | | | Zap ftssp010_spi driver since the boards used this driver is no longer been active. Signed-off-by: Jagan Teki <jteki@openedev.com> Cc: Kuo-Jung Su <dantesu@faraday-tech.com> Cc: Axel Lin <axel.lin@ingics.com>
* spi: Zap andes_spi driverJagan Teki2015-07-01-400/+0
| | | | | | | | Zap andes_spi driver since the boards used this driver is no longer been active. Signed-off-by: Jagan Teki <jteki@openedev.com> Cc: Macpaul Lin <macpaul@andestech.com>
* sf: update sst25wf040b flash paramsHaikun Wang2015-06-30-1/+1
| | | | | | | | | sst25wf040b doesn't support Auto Address Increment Programming command. Remove SST_WR flag. Signed-off-by: Haikun Wang <B53464@freescale.com> Tested-by: Haikun Wang <haikun.wang@freescale.com> Reviewed-by: Jagannadh Teki <jteki@openedev.com>
* mtd, spi: Check if flash pointer is usedHeiko Schocher2015-06-30-0/+5
| | | | | | | | | If flash pointer is used free it, before probing a new flash and storing it in flash. Signed-off-by: Heiko Schocher <hs@denx.de> Tested-by: Jagannadh Teki <jteki@openedev.com> Reviewed-by: Jagannadh Teki <jteki@openedev.com>
* spi, sf: Use offset and size in sf cmd from mtdpartitionHeiko Schocher2015-06-30-25/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With this patch, it is possible to get the offset and size information from the mtdpartiton setting in "mtdparts", similiar to the "nand" commandos. => sf sf - SPI flash sub-system Usage: sf probe [[bus:]cs] [hz] [mode] - init flash device on given SPI bus and chip select sf read addr offset|partition len - read `len' bytes starting at `offset' to memory at `addr' sf write addr offset|partition len - write `len' bytes from memory at `addr' to flash at `offset' sf erase offset|partition [+]len - erase `len' bytes from `offset' `+len' round up `len' to block size sf update addr offset|partition len - erase and write `len' bytes from memory at `addr' to flash at `offset' => for example "env" is defined in mtdparts: => sf read 13000000 env device 0 offset 0xd0000, size 0x10000 SF: 65536 bytes @ 0xd0000 Read: OK zynq-uboot> mtdparts add nor0 0x10000@0x0 env zynq-uboot> sf erase env 0x10000 SF: 65536 bytes @ 0x0 Erased: OK zynq-uboot> sf write 0x100 env device 0 offset 0x0, size 0x10000 SF: 65536 bytes @ 0x0 Written: OK zynq-uboot> sf read 0x40000 env device 0 offset 0x0, size 0x10000 SF: 65536 bytes @ 0x0 Read: OK Signed-off-by: Heiko Schocher <hs@denx.de> Tested-by: Jagannadh Teki <jteki@openedev.com> Reviewed-by: Jagannadh Teki <jteki@openedev.com>
* mtd, nand: Move common functions from cmd_nand.c to common placeHeiko Schocher2015-06-30-141/+164
| | | | | | | | | | | | | | Move common functions from cmd_nand.c (for calculating offset and size from cmdline paramter) to common place, so they could used from other commands which use mtd partitions. For onenand the arg_off_size() is left in common/cmd_onenand.c. It should use now the common arg_off() function, but as I could not test onenand I let it there ... Signed-off-by: Heiko Schocher <hs@denx.de> Acked-by: Scott Wood <scottwood@freescale.com> Reviewed-by: Jagannadh Teki <jteki@openedev.com>
* mtd, spi: Add MTD layer driverDaniel Schwierzeck2015-06-30-7/+125
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add MTD layer driver for spi, original patch from: http://git.denx.de/?p=u-boot/u-boot-mips.git;a=commitdiff;h=bb246819cdc90493dd7089eaa51b9e639765cced Changes from Heiko Schocher against this patch: - Remove compile error if not defining CONFIG_SPI_FLASH_MTD: LD drivers/mtd/spi/built-in.o drivers/mtd/spi/sf_probe.o: In function `spi_flash_mtd_unregister': /home/hs/abb/imx6/u-boot/drivers/mtd/spi/sf_internal.h:168: multiple definition of `spi_flash_mtd_unregister' drivers/mtd/spi/sf_params.o:/home/hs/abb/imx6/u-boot/drivers/mtd/spi/sf_internal.h:168: first defined here drivers/mtd/spi/sf_ops.o: In function `spi_flash_mtd_unregister': /home/hs/abb/imx6/u-boot/drivers/mtd/spi/sf_internal.h:168: multiple definition of `spi_flash_mtd_unregister' drivers/mtd/spi/sf_params.o:/home/hs/abb/imx6/u-boot/drivers/mtd/spi/sf_internal.h:168: first defined here make[1]: *** [drivers/mtd/spi/built-in.o] Fehler 1 make: *** [drivers/mtd/spi] Fehler 2 - Add a README entry. - Add correct writebufsize, to fit with Linux v3.14 MTD, UBI/UBIFS sync. Note (From Jagan): For testing raw mtd parition erase/read/write operations using cmd_sf, sf_mtd should be required to register the spi flash device to MTD layer but the sf_mtd_info ops were not required until and unless if we use any flash filesystem layer say for example UBI. Due to this the foot-print got increased ~290bytes in non-UBI case here that should be acceptible. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Signed-off-by: Heiko Schocher <hs@denx.de> Tested-by: Jagannadh Teki <jteki@openedev.com> Reviewed-by: Jagannadh Teki <jteki@openedev.com>
* defconfig: ls1021a: Add OF_CONTROL and DM supportHaikun Wang2015-06-30-0/+8
| | | | | | | | | PI and QSPI only work when boot from QSPI on ls1021a. This patch only enable options in qspi boot defconfig. Signed-off-by: Haikun Wang <haikun.wang@freescale.com> Tested-by: Haikun Wang <haikun.wang@freescale.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
* arm: ls102xa: Enable Driver Model SPI for ls1021atwrHaikun Wang2015-06-30-2/+7
| | | | | | | | | | | | Enable Driver Model SPI for ls1021atwr board. DSPI and QSPI only be enabled when boot from QSPI. DSPI and QSPI are compatible under Driver Model SPI. Signed-off-by: Haikun Wang <Haikun.Wang@freescale.com> Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com> Tested-by: Haikun Wang <haikun.wang@freescale.com> Reviewed-by: Prabhakar Kushwaha <prabhakar@freescale.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
* arm: ls102xa: Enable Driver Model SPI for ls1021aqdsHaikun Wang2015-06-30-2/+11
| | | | | | | | | | Enable Driver Model SPI for ls1021aqds board. DSPI and QSPI is enabled only when boot from QSPI. DSPI and QSPI are compatible under Driver Model SPI. Signed-off-by: Haikun Wang <Haikun.Wang@freescale.com> Tested-by: Haikun Wang <haikun.wang@freescale.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
* dm: ls1021aqds: dts: Use "spi_dataflash" driver instead of "spi_flash_std" ↵Haikun Wang2015-06-30-1/+1
| | | | | | | | | | | | | for DSPI flash The type of DSPI flash on ls1021aqds is AT45DB021, it has specail commands and page-size. Use the special spi flash driver instead of "spi_flash_std" driver. Signed-off-by: Haikun Wang <haikun.wang@freescale.com> Tested-by: Haikun Wang <haikun.wang@freescale.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jteki@openedev.com>
* dm: sf: Add Atmel DataFlash spi flash driverHaikun Wang2015-06-30-0/+712
| | | | | | | | | | | | | | | | | | | | | | | | | | Atmel DataFlash chips have commands different from common spi flash commands. Atmel DataFlash also have special page-size. This driver add support for accessing Atmel DataFlash. It is based on the Driver Model. Example: => sf probe 1:0 SPI DataFlash: Detected AT45DB021B with page size 264 Bytes, erase size 264 Bytes, total 264 KiB, revision d => sf erase 0 42000 SF: 270336 bytes @ 0x0 Erased: OK => mw.l 82000000 45444342 20000 => sf write 82000000 0 42000 SF: 270336 bytes @ 0x0 Written: OK => sf read 83000000 0 42000 SF: 270336 bytes @ 0x0 Read: OK => cmp.b 82000000 83000000 42000 Total of 270336 byte(s) were the same Signed-off-by: Haikun Wang <haikun.wang@freescale.com> Tested-by: Haikun Wang <haikun.wang@freescale.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Chakra Divi <cdivi@openedev.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
* Merge git://git.denx.de/u-boot-marvellTom Rini2015-06-28-0/+7
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| * db-88f6820-gp.h: Load data blobs into lower memoryKevin Smith2015-06-28-0/+5
| | | | | | | | | | | | | | | | | | | | | | By default on this platform, u-boot loads data into high memory in the range of 0x7Fxxxxxx, which generates a data abort when the kernel tries to read it. Config the u-boot environment to load the device tree and initrd image into lower memory to make them accessible to the kernel. Signed-off-by: Kevin Smith <kevin.smith@elecsyscorp.com> Acked-by: Stefan Roese <sr@denx.de>
| * mv-common.h: Include support for device treesKevin Smith2015-06-28-0/+2
| | | | | | | | | | Signed-off-by: Kevin Smith <kevin.smith@elecsyscorp.com> Acked-by: Stefan Roese <sr@denx.de>
* | Revert "sunxi/nand: Add support to the SPL for loading u-boot from internal ↵Ian Campbell2015-06-28-415/+2
|/ | | | | | | | | | | | | | NAND memory" This reverts commit f76eba38b3eda905ff3bdc18dd1240d3dcbc6e5a. This patch did not have a full and proper copyright/S-o-b chain. Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Conflicts: include/configs/sun6i.h include/configs/sun8i.h
* Move defaults from config_cmd_default.h to KconfigJoe Hershberger2015-06-25-3297/+3070
| | | | | | | | | | This sets the default commands Kconfig to match include/config_cmd_default.h commands in the common/Kconfig and removes them from include/configs. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> [trini: rastaban, am43xx_evm_usbhost_boot, am43xx_evm_ethboot updates] Signed-off-by: Tom Rini <trini@konsulko.com>
* Move default y configs out of arch/board KconfigJoe Hershberger2015-06-25-365/+1170
| | | | | | | | | | | | | | | | | | | Some archs/boards specify their own default by pre-defining the config which causes the Kconfig system to mix up the order of the configs in the defconfigs... This will cause merge pain if allowed to proliferate. Remove the configs that behave this way from the archs. A few configs still remain, but that is because they only exist as defaults and do not have a proper Kconfig entry. Those appear to be: SPIFLASH DISPLAY_BOARDINFO Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> [trini: rastaban, am43xx_evm_usbhost_boot, am43xx_evm_ethboot updates, drop DM_USB from MSI_Primo81 as USB_MUSB_SUNXI isn't converted yet to DM] Signed-off-by: Tom Rini <trini@konsulko.com>
* a3m071: Add needed dependency on LIB_RANDJoe Hershberger2015-06-25-2/+4
| | | | | | | | | Boards using link-local need lib rand. When link-local is moved to Kconfig, this dependency will be described there. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
* common: Add the CMD_ENV_EXISTS config to KconfigJoe Hershberger2015-06-25-0/+6
| | | | | | | This command needs to exist in the Kconfig so that it can be moved from the config_cmd_default.h. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
* common: Fix comment for saveenv in KconfigJoe Hershberger2015-06-25-1/+2
| | | | | | | | The help for this was simply copied from another command. Update it to reflect the command. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
* mtd: spi: Add the SPI_FLASH config to KconfigJoe Hershberger2015-06-25-0/+9
| | | | | | | This config needs to be available in the Kconfig to allow it to be removed from arch defaults. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
* mmc: bcm2835_sdhci: Restore original delay behaviorMarek Vasut2015-06-25-2/+2
| | | | | | | | | | | | | | | | | | Patch 33fe2fb8df01647f97a7bce96a1c7781a7f6d253 titled "mmc: bcm283x: Remove get_timer_us() from mmc driver" incorrectly replaced ad-hoc get_timer_us() function with a plain get_timer(). The get_timer() operates in mSec units instead of uSec though, which caused very slow operation of the driver. Restore the original behavior of the driver, but avoid get_timer_us() and use timer_get_us() instead. The later is part of the standard API. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Jakub Kiciński <moorray3@wp.pl> Cc: Stephen Warren <swarren@wwwdotorg.org> Tested-by: Jakub Kicinski <kubakici@wp.pl>
* Merge git://git.denx.de/u-boot-usbTom Rini2015-06-19-23/+22
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| * usb: kbd: Disable idle input reports when we do not need themHans de Goede2015-06-19-1/+3
| | | | | | | | | | | | | | | | When we're polling and thus handling key-repeat in software, make sure to disable idle reports, some keyboards may have these enabled by default messing up our software keyrepeat. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
| * usb: ehci: Properly deal with data toggle for interrupt endpointsHans de Goede2015-06-19-7/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | Without this we loose every other interrupt packet. We never noticed this because with keyboards the packets which we were loosing would normally be key release packets. But now that we do keyrepeat in software instead of relying on the hid idle functionality, missing a release will result in key repeat triggering. This commit fixes this. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
| * usb.h: Always declare usb function prototypesHans de Goede2015-06-19-15/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no harm in declaring the function prototypes even if nothing implements them, and when CONFIG_DM_USB=y the various usb functions are available regardless of any controller drivers being enabled. This fixes compile warnings due to missing prototypes on ARCHs where the ARCH Kconfig always enables CONFIG_DM_USB and various usb drivers. One could argue that in the case of no controllers CONFIG_DM_USB should not be set, but this problem is typically seen during bringup of boards which do actually have usb controllers. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* | siemens,am33x,thuban: rename dxr2 to thubanHeiko Schocher2015-06-19-21/+15
| | | | | | | | | | | | | | | | Update new naming scheme. Signed-off-by: Samuel Egli <samuel.egli@siemens.com> Acked-by: Heiko Schocher <hs@denx.de> Reviewed-by: Tom Rini <trini@konsulko.com>
* | siemens,am33x,rastaban: add rastaban configHeiko Schocher2015-06-19-0/+176
| | | | | | | | | | | | | | | | | | | | rastaban is a draco version with more flash, more RAM and faster CPU. Number of partitions is the same but rootfs partition is different. Signed-off-by: Samuel Egli <samuel.egli@siemens.com> Acked-by: Heiko Schocher <hs@denx.de> Reviewed-by: Tom Rini <trini@konsulko.com>
* | README: Describe CONFIG_SYS_NO_FLASHChris Packham2015-06-19-0/+13
| | | | | | | | | | | | | | | | | | | | | | Unlike most configuration options defining this actually disables support for a feature (parallel flash). Eventually the logic behind this should probably be flipped so that '#ifndef CONFIG_SYS_NO_FLASH' becomes '#ifdef CONFIG_HAS_PARALLEL_FLASH' but for now lets document the existing behaviour. Signed-off-by: Chris Packham <judge.packham@gmail.com> Reviewed-by: Stefan Roese <sr@denx.de>
* | ARM: BeagleBoard-X15: Enable VTT regulatorLokesh Vutla2015-06-19-0/+25
| | | | | | | | | | | | | | | | BeagleBoard-X15 uses a vtt regulator for DDR3 termination and this is controlled by gpio7_11. Configuring gpio7_11. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
* | am43xx_evm: add eth boot supportMugunthan V N2015-06-19-2/+14
| | | | | | | | | | | | | | | | | | | | | | add cpsw ethernet boot mode support to download spl and u-boot.img via tftp protocol. Also adding a seperate config for ethernet boot mode as the default build falcon mode and environment on MMC is defined for ethernet boot mode environment should be set to nowhere. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
* | am43xx_evm: add usb host boot supportMugunthan V N2015-06-19-1/+16
| | | | | | | | | | | | | | | | | | While booting via usb host mode, ROM uses DMA to copy MLO over USB so ARM internal RAM cannot be used. Adding USB host boot support by introducing new config target which sets SPL_TEXT_BASE to OCMC ram. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
* | am43xx: Update CONFIG_SPL_TEXT_BASETom Rini2015-06-19-1/+1
| | | | | | | | | | | | | | | | | | With 1.2 silicon this is now the documented starting usable point for downloading images to (and corrects a problem with peripheral booting with prior silicon). Prior silicon is OK using this address as well. Signed-off-by: Tom Rini <trini@konsulko.com> Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
* | ARM: DRA7: Change configuration to prevent DDR reset control from EMIFNishanth Menon2015-06-19-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DRA7/AM57xx devices can be operated in many different configurations. When the SoC is supposed to support a configuration where low power mode state may involve the SoC completely powered off and DDR is in self refresh, SoC EMIF controller should not be the master of the reset signal and an external entity might be in control of things. The default configuration of Linux on TI evms involve not powering off the voltage rails (due to various reasons including reliability concerns) and must not allow DDR reset to be controlled by EMIF. On platforms where external entity might control the reset signal, this configuration will be a "dont care". Fixes: 536d87470869 ("ARM: DRA7: Update DDR IO registers") Tested-by: Keerthy <j-keerthy@ti.com> Acked-by: Brad Griffis <bgriffis@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
generated by cgit v1.1 at 2024-09-19 20:51:20 +0000