To be in the safe side we need to enable the CCGR clocks prior
to calling arch_cpu_init().
Inspired by Tim Harvey's commit d783c2744f ("imx: ventana: fix boot to SD").
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Eric Nelson <eric@nelint.com>
Tested-by: Eric Nelson <eric@nelint.com>
Adjust DDR3 initialization done in SPL by comparing them against
the NXP DCD table.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Eric Nelson <eric@nelint.com>
When running a NXP 4.1 kernel with U-Boot mainline on a mx6ul-evk,
we observe a hang when going into the lowest operational point of cpufreq.
This hang issue does not happen on the NXP U-Boot version.
After comparing the SPL DDR initialization against the DCD table
from NXP U-Boot, the key difference that causes the hang is the
MDREF register setting:
DATA 4 0x021B0020 0x00000800
,which means:
REF_SEL = 0 --> Periodic refresh cycle: 64kHz
REFR = 1 ---> Refresh Rate - 2 refreshes
So adjust the MDREF initialization for mx6ul_evk accordingly
to fix the kernel hang issue at low bus frequency.
Reported-by: Eric Nelson <eric@nelint.com>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Eric Nelson <eric@nelint.com>
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>
Register LDOGCTL contains only bit 0 as a valid bit, so there is no need
to do a read-modify-write operation.
Simplify the code by writing directly to this register.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Only a single pad is changed to change sdhc2_dat3 from an
SDIO pin to and from GPIO4:5, so remove the array and use
the imx_iomux_v3_setup_pad() routine.
Signed-off-by: Eric Nelson <eric@nelint.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
The current pad DSE for QSPI is 60ohm. This setting cause
too strong drive to clock and data signals. Need to change
the DSE to 120ohm for better signal quality.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Q901 is PMOS, LCD_nPWREN should be at low voltage then output is 3V3.
If LCD_nPWREN is high, output is 2.4V which is not correct.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Fix 74LV OE gpio index. gpio index is wrong,
so gpio output will not have effect, since we
use wrong GPIO5_IO18, but not correct GPIO5_IO8.
And at the end of the initialization of 74lv init, should
keep OE voltage level at LOW to make 74lv output the correct
voltage.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Most of ehci-fsl header describe USB controller
designed by Chipidea and used by various SoC vendors.
This patch renames it to a generic header: ehci-ci.h
Contents of file are not changed (so it contains several
references to freescale SoCs).
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Simon Glass <sjg@chromium.org>
Correct spelling of "U-Boot" shall be used in all written text
(documentation, comments in source files etc.).
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Minkyu Kang <mk7.kang@samsung.com>
Support lcdif display:
1. Add pinmux and pad settings for LCDIF
2. Introduce setup_lcd to do the settings for LCDIF
3. Enable VIDEO related macros in board header files
4. Add a new env videomode which is needed by mxsfb.c. The
settings for videomode in this patch is for TFT43AB.
5. Tested on mx6ul 14x14/9x9 evk.
Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
get_board_rev() is not actually providing the board revision.
It just returns the CPU revision instead.
As the CPU revision is already printed on boot, there is no
reason to have get_board_rev(), so let's remove it.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
This patch is to support mx6ul_9x9_evk board based on mx6ul_14x14_evk,
the difference between mx6ul 9x9 evk and mx6ul 14x14 evk are:
1. mx6ul 9x9 evk use pfuze3000, while mx6ul 14x14 evk use DCDC.
2. mx6ul 9x9 evk supports 256MB LPDDR2, while mx6ul 14x14 evk
supports 512MB DDR3
3. mx6ul_9x9_evk use 9x9 package, while mx6ul_14x14_evk use 14x14 package.
This patch add the following:
1. Discard PHYS_SDRAM_SIZE from header file, use imx_ddr_size()
2. Introduce a macro is_mx6ul_9x9_evk using
CONFIG_IS_ENABLED(TARGET_MX6UL_9X9_EVK) to avoid "#ifdef xxx" in non-SPL
part. To SPL part, CONFIG_IS_ENABLED(TARGET_MX6UL_9X9_EVK) can not work,
so still use "#ifdef CONFIG_TARGET_MX6UL_9X9_EVK" to differentiate with
mx6ul_14x14_evk. And we have no way to dymaically checking this chip
is 9x9 or 14x14.
3. mx6ul_9x9_evk use pfuze3000, so enabled POWER related configurations.
POWER related configurations also effect for mx6ul_14x14_evk. But
power_init_board implementation using 'if (is_mx6ul_9x9_evk())' to
do initialization for mx6ul_9x9_evk, and do nothing for mx6ul_14x14_evk.
4. mx6ul_9x9_evk use lpddr2 with size 256MB, so add related SPL DRAM
configurations.
5. Enable CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG and setting dtb file
according to board_rev and board_name.
6. Add TARGET_MX6UL_9X9_EVK Kconfig entry
Boot Log:
U-Boot SPL 2015.10-rc2-00356-g536ce34 (Sep 06 2015 - 12:22:53)
reading u-boot.img
reading u-boot.img
U-Boot 2015.10-rc2-00356-g536ce34 (Sep 06 2015 - 12:22:53 +0800)
CPU: Freescale i.MX6UL rev1.0 792 MHz (running at 396 MHz)
CPU: Commercial temperature grade (0C to 95C) at 41C
Reset cause: POR
Board: MX6UL 9x9 EVK
I2C: ready
DRAM: 256 MiB
PMIC: PFUZE3000 DEV_ID=0x30 REV_ID=0x11
MMC: FSL_SDHC: 0, FSL_SDHC: 1
In: serial
Out: serial
Err: serial
Net: FEC1
Hit any key to stop autoboot: 0
Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
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>
