starfive-tech/u-boot.git/arch/arm/cpu, branch rtthread_AMP

armv8: fsl : create bootcmd and mcinitcmd as per boot source

2021-08-18T10:25:15+00:00

NXP platforms expect custom bootcmd and mcinitcmd to be updated as per boot source with default environment. Check env variable fsl_bootcmd_mcinitcmd_set to prepare bootcmd and mcinitcmd Fixes: cbf77d201870 (armv8: fsl-layerscape: Fix automatic setting of bootmcd with TF-A) Signed-off-by: Wasim Khan Reviewed-by: Priyanka Jain

arm: Finish migration of HAS_FSL_XHCI_USB

2021-08-18T10:25:15+00:00

This symbol was largely migrated, except for one case. Update it. Cc: Priyanka Jain Signed-off-by: Tom Rini Reviewed-by: Priyanka Jain

global: Convert simple_strtoul() with decimal to dectoul()

2021-08-02T17:32:14+00:00

It is a pain to have to specify the value 10 in each call. Add a new dectoul() function and update the code to use it. Signed-off-by: Simon Glass

global: Convert simple_strtoul() with hex to hextoul()

2021-08-02T17:32:14+00:00

It is a pain to have to specify the value 16 in each call. Add a new hextoul() function and update the code to use it. Add a proper comment to simple_strtoul() while we are here. Signed-off-by: Simon Glass

arm64: Update memcpy_{from, to}io() helpers

2021-07-28T23:30:22+00:00

At early U-Boot stage, before relocation, MMU is not yet configured and disabled. DDR may not be configured with the correct memory attributes (can be configured in MT_DEVICE instead of MT_MEMORY). In this case, usage of memcpy_{from, to}io() may leads to synchronous abort in AARCH64 in case the normal memory address is not 64Bits aligned. To avoid such situation, forbid usage of normal memory cast to (u64 *) in case MMU is not enabled. Signed-off-by: Patrice Chotard Reviewed-by: Patrick Delaunay Cc: mark.kettenis@xs4all.nl Signed-off-by: Patrick Delaunay

i2c: Rename SPL/TPL_I2C_SUPPORT to I2C

2021-07-28T18:29:37+00:00

Rename these options so that CONFIG_IS_ENABLED can be used with them. Signed-off-by: Simon Glass Reviewed-by: Heiko Schocher

i2c: Rename CONFIG_SYS_I2C to CONFIG_SYS_I2C_LEGACY

2021-07-28T18:29:37+00:00

It is quite confusing that CONFIG_SYS_I2C selects the legacy I2C and CONFIG_DM_I2C selects the current I2C. The deadline to migrate I2C is less than a year away. Also we want to have a CONFIG_I2C for U-Boot proper just like we have CONFIG_SPL_I2C for SPL, so we can simplify the Makefile rules. Rename this symbol so it is clear it is going away. Signed-off-by: Simon Glass Reviewed-by: Heiko Schocher

armv8: Initialize CNTFRQ if at highest exception level

2021-07-23T22:53:46+00:00

CNTFRQ_EL0 is only writable from the highest supported exception level on the platform. For Armv8-A, this is typically EL3, but technically EL2 and EL3 are optional so it may need to be initialized at EL2 or EL1. For Armv8-R, the highest exception level is always EL2. This patch moves the initialization outside of the switch_el block and uses a new macro branch_if_not_highest_el which dynamically detects whether it is at the highest supported exception level. Linux's docs state that CNTFRQ_EL0 should be initialized by the bootloader. If not set, the the U-Boot prompt countdown hangs. Signed-off-by: Peter Hoyes

arm: armv8: Fix warning about redeclaring global functions as weak

2021-07-09T16:15:41+00:00

As seen with clang-12: warning: __asm_invalidate_l3_dcache changed binding to STB_WEAK As we indeed use ENTRY and then declare the function weak manually. Use the WEAK declarative from instead. Signed-off-by: Tom Rini

armv8: Handle EL2 Host mode

2021-07-09T15:36:12+00:00

On implementations that support VHE, the layout of the CPTR_EL2 register depends on whether HCR_EL2.E2H is set. If the bit is set, CPTR_EL2 uses the same layout as CPACR_EL1 and can in fact be accessed through that register. In that case, jump to the EL1 code to enable access to the FP/SIMD registers. This allows U-Boot to run on systems that pass control to U-Boot in EL2 with EL2 Host mode enabled such as machines using Apple's M1 SoC. Signed-off-by: Mark Kettenis Acked-by: Marc Zyngier