u-boot/arch/arm
Tudor Ambarus 1b0eec3c9f ARM: dts: at91: sama7g5ek: Align the impedance of the QSPI0's HSIO and PCB lines
The impedance of the QSPI PCB lines on the sama7g5ek is 50 Ohms.
Align the output impedance of the QSPI0 HSIOs by setting a medium drive
strength which corresponds to an impedance of 56 Ohms when VDD is in the
3.0V - 3.6V range. The high drive strength setting corresponds to an
output impedance of 42 Ohms on the QSPI0 HSIOs.
This is just a fine tunning. The memory that we have populated on sama7g5ek
works fine even with high drive strength, but it's better to adjust it and
use medium instead, in case some other flashes with higher frequencies are
tested.

Suggested-by: Mihai Sain <mihai.sain@microchip.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
2022-04-26 09:54:41 +03:00
..
cpu arm: set cntfrq_el0 if CONFIG_COUNTER_FREQUENCY is valid 2022-04-21 15:27:18 -04:00
dts ARM: dts: at91: sama7g5ek: Align the impedance of the QSPI0's HSIO and PCB lines 2022-04-26 09:54:41 +03:00
include pci: imx: remove weak overrides no longer used 2022-04-21 14:38:03 +02:00
lib arm: Do not compile vector table when SYS_NO_VECTOR_TABLE is enabled 2022-04-21 12:31:36 +02:00
mach-apple arm: apple: Point stdout-path to framebuffer when keyboard present 2022-04-22 15:56:39 -04:00
mach-aspeed
mach-at91 ARM: mach-at91: armv7: Remove default reset driver 2022-04-26 09:53:18 +03:00
mach-bcm283x doc: replace @return by Return: 2022-01-19 18:11:34 +01:00
mach-bcmstb
mach-cortina
mach-davinci Finish conversion of CONFIG_SYS_CLK_FREQ to Kconfig 2021-12-27 16:20:18 -05:00
mach-exynos exynos: Drop CONFIG_CLK_* 2022-04-01 10:28:47 -04:00
mach-highbank
mach-imx u-boot-imx-20220422 2022-04-22 08:12:20 -04:00
mach-integrator arm: integrator: Migrate platform-specific options and cleanup armcoremodule.h 2022-04-08 09:05:19 -04:00
mach-ipq40xx
mach-k3 Merge branch '2022-04-04-platform-updates' 2022-04-05 13:45:22 -04:00
mach-keystone arch/arm/mach-keystone/ddr3.c: Fix spelling of "resetting". 2022-01-13 07:57:50 -05:00
mach-kirkwood keymile: Move sourcing of common Kconfig 2022-04-01 10:28:46 -04:00
mach-lpc32xx
mach-mediatek
mach-meson
mach-mvebu arm: mvebu: a37xx: Add support for writing Security OTP values 2022-04-21 12:31:36 +02:00
mach-nexell video: Drop references to CONFIG_VIDEO et al 2022-03-28 20:17:07 +02:00
mach-octeontx Convert CONFIG_SYS_PCI_64BIT to Kconfig 2021-12-27 16:20:17 -05:00
mach-octeontx2 Convert CONFIG_SYS_PCI_64BIT to Kconfig 2021-12-27 16:20:17 -05:00
mach-omap2 arm: Introduce new CONFIG_SPL_SYS_NO_VECTOR_TABLE option 2022-04-21 12:31:36 +02:00
mach-orion5x Convert CONFIG_88F5182 et al to Kconfig 2021-12-27 16:20:19 -05:00
mach-owl
mach-qemu
mach-rmobile armv8: Fix and simplify branch_if_master/branch_if_slave 2022-03-02 13:59:29 -05:00
mach-rockchip arm: set cntfrq_el0 if CONFIG_COUNTER_FREQUENCY is valid 2022-04-21 15:27:18 -04:00
mach-s5pc1xx doc: replace @return by Return: 2022-01-19 18:11:34 +01:00
mach-snapdragon
mach-socfpga iopoll: Extend read_poll_timeout macro to support variable parameters 2022-04-12 19:10:44 +02:00
mach-sti
mach-stm32
mach-stm32mp spl: mmc: extend spl_mmc_boot_mode() to take mmc argument 2022-04-04 23:24:17 +01:00
mach-sunxi sunxi: eMMC: Improve automatic boot source detection 2022-04-05 00:08:40 +01:00
mach-tegra tegra: Migrate CI_UDC_HAS_HOSTPC to Kconfig 2022-04-08 09:05:19 -04:00
mach-u8500
mach-uniphier spl: mmc: extend spl_mmc_boot_mode() to take mmc argument 2022-04-04 23:24:17 +01:00
mach-versal arch: arm: move COUNTER_FREQUENCY from versal to arm 2022-04-21 14:32:40 -04:00
mach-versatile
mach-zynq ARM: zynq: Fix debug uart initialization 2022-02-21 13:20:24 +01:00
mach-zynqmp arm64: zynqmp: Fix debug uart initialization 2022-02-21 13:20:29 +01:00
mach-zynqmp-r5 Convert CONFIG_CPU_FREQ_HZ to Kconfig 2021-12-27 16:20:19 -05:00
thumb1/include/asm/proc-armv
config.mk
Kconfig arm: apple: Point stdout-path to framebuffer when keyboard present 2022-04-22 15:56:39 -04:00
Kconfig.debug
Makefile