In commit a1274cc94a20 ("ARM: Page align secure section only when it is
executed in situ"), we used output section attributes (the "ALIGN"
keyword after the colon) to specify the alignment requirements. Using
the constant "COMMONPAGE" there was recently broken in binutils 2.31 [1].
Binutils maintainer Alan Modra suggested the former method would still
work. Since both methods achieve the same result, this patch does just
that. This fixes the "reboot after bootm" issue we've been seeing on
sunxi when booting non-secure.
[1] https://sourceware.org/bugzilla/show_bug.cgi?id=23571
Suggested-by: Alan Modra <amodra@gmail.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Acked-by: Jagan Teki <jagan@openedev.com>
When re-syncing the DTS files from the kernel, something caused
the MMC driver to no longer detect the MMC card. Undoing the
CD-invert appears to fix the issue.
Fixes: e6ea2390cde3 ("ARM: DTS: Resync LogicPD-Torpedo-37xx-devkit
with Linux 4.18-RC4")
Signed-off-by: Adam Ford <aford173@gmail.com>
Minor changes for ARC 1. Fix CPU clock value in HSDK's .dts so time is counted properly. 2. Enable bootelf command on EMDK
CPU (and hence cpu timers) on HSDK board runs at 500MHz after preloader so fix wrong CPU frequency value in hsdk.dts Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
This patch adds system suspend/resume support, when linux kernel enters deep sleep mode, SoC will go into below mode: - CA7 platform goes into STOP mode; - SoC goes into DSM mode; - DDR goes into self-refresh mode; - CPU0/SCU will be powered down. When wake up event arrives: - SoC DSM mdoe exits; - CA7 platform exit STOP mode, SCU/CPU0 power up; - Invalidate L1 cache; - DDR exit self-refresh mode; - Do secure monitor mode related initialization; - Jump to linux kernel resume entry. Belwo is the log of 1 iteration of system suspend/resume: [ 338.824862] PM: suspend entry (deep) [ 338.828853] PM: Syncing filesystems ... done. [ 338.834433] Freezing user space processes ... (elapsed 0.001 seconds) done. [ 338.842939] OOM killer disabled. [ 338.846182] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. [ 338.869717] PM: suspend devices took 0.010 seconds [ 338.877846] Disabling non-boot CPUs ... [ 338.960301] Retrying again to check for CPU kill [ 338.964953] CPU1 killed. [ 338.968104] Enabling non-boot CPUs ... [ 338.973598] CPU1 is up [ 339.267155] mmc1: queuing unknown CIS tuple 0x80 (2 bytes) [ 339.275833] mmc1: queuing unknown CIS tuple 0x80 (7 bytes) [ 339.284158] mmc1: queuing unknown CIS tuple 0x80 (6 bytes) [ 339.385065] PM: resume devices took 0.400 seconds [ 339.389836] OOM killer enabled. [ 339.392986] Restarting tasks ... done. [ 339.398990] PM: suspend exit The resume entry function has to initialize stack pointer before calling C code, otherwise there will be an external abort occur, in additional, invalidate L1 cache must be done in secure section as well, so this patch also adds assembly code back and keep it as simple as possible. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Acked-by: Stefan Agner <stefan@agner.ch> Tested-by: Stefan Agner <stefan@agner.ch>
Add i.MX7D GPC initialization for low power mode support like system suspend/resume from linux kernel: - Pending IOMUXC IRQ to workaround GPC state machine issue; - Mask all GPC interrupts for M4/C0/C1; - Configure SCU timing; - Configure time slot ack; - Configure C0/C1 power up/down timing; - Configure wakeup source mechanism; - Disable DSM/RBC related settings. Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
This patch improves cpu hotplug, previous cpu_off implementation is NOT safe, a CPU can NOT power down itself in runtime, it will cause system bus hang due to pending transaction. So need to use other online CPU to kill it when it is ready for killed. Here use SRC parameter register and a magic number of ~0 as handshake for killing a offline CPU, when the online CPU checks the psci_affinity_info, it will help kill the offline CPU according to the magic number stored in SRC parameter register. Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
The existing imx_watchdog driver is compatible with mx25 chipsets. Add a WDOG1_BASE_ADDR define for the base address and enable the driver in watchdog's Makefile. To use the driver, a board must define CONFIG_IMX_WATCHDOG and CONFIG_HW_WATCHDOG. This fixes an issue when booting an mx25 chip via usb/serial. In this case, the boot rom will always enable the watchdog. If u-boot is running in interactive mode and the watchdog is not serviced, the system is rebooted when the watchdog expires. Signed-off-by: Martin Kaiser <martin@kaiser.cx> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Add the board DTS files for 14x14 EVK and 9x9 EVK. They are necessary for converting to use u-boot DM driver. Two -u-boot.dtsi are added to modify compatible string of SPI flash device to "spi-flash". Signed-off-by: Ye Li <ye.li@nxp.com>