Retire BCM53XX_CONSOLE_EARLY in favour of EARLYCONS

More devmap updates

Apply the

earlyconsgetc: return -1 instead of 0 because we will never produce input

fix to all copies.

branches: 1.26.2;
Provide and use a sev() macro for the sev instruction.

While here use the correct barrier to ensure completion of memory accesses
before a couple of the sev() calls.

Build fixes and make BP startup detection consistent

branches: 1.24.2;
Retire arm_[di]sb in favour of the isb() and dsb(sy) macro invocations.

Various updates and improvements to cpu start up on arm/aarch64

- start sharing more code around the AP startup messaging.
- call arm_cpu_topology_set early so that ci_core_id is available for
drivers, e.g. bcm2835_intr.c
- both arm and aarch64 now have
- a static cpu_info_store array
- the same arm_cpu_{hatched,mbox}

Fix indentation

branches: 1.21.4;
Consistently use vaddr_t as initarm and friends return type.

Makes no difference to binaries except for aarch64 where it's required

Convert remaining armv7 kernels to generic start and remove a bunch of
code including a9_mpsubr.S.

Thanks to Lwazi Dube for testing PANDABOARD and BEAGLEBONE.

Less is more

Provide generic start code that assumes the MMU is off and caches are
disabled as per the linux booting protocol for ARMv6 and ARMv7 boards.
u-boot image type should be changed to 'linux' for correct behaviour.

The new start code builds a minimal "bootstrap" L1PT with cached access
disabled and uses the same table for all processors. AP startup is
performed in less steps and more code is written in C.

The bootstrap tables and stack are placed into an (orphaned) section
"_init_memory" which is given to uvm when it is no longer used.

Various kernels have been converted to use this code and tested. Some
boards were provided by TNF. Thanks!

The GENERIC kernel now boots on boards using the TEGRA, SUNXI and EXYNOS
kernels. The GENERIC kernel will also work on RPI2 using u-boot.

Thanks to martin@ and aymeric@ for testing on parallella and nanosoc
respectively

Whitespace

Centralise defparam CONSADDR, CONSPEED, CONMODE and CONADDR into
opt_console.h and adjust.

Undo previous as it is not required.

One more step towards fixing some builds. Like my last attempt
this one also needs redoing properly...

Fix KERN_{VTOPHYS,PHYSTOV) fallout differently

Hack workaround to deal with KERN_VTOPHYS and KERN_PHYSTOV now
being defined in arm/arm32/machdep.h ... attempt to fix (some) earm
builds. Even if builds succeed, resulting kernel might not boot,
and if it boots, could crash. Someone with a clue, please use it!

Sprinkle #include "opt_arm_debug.h" where VERBOSE_INIT_ARM is used

make sure uboot_args is in the data segment by saying so, as opposed to
depending on initializing it to 0.

branches: 1.9.16; 1.9.18;
Deal with more than 1GB of RAM.

branches: 1.8.6;
adjust arm_cpu_max by 1 to be number of cpus

branches: 1.7.4;
Print out PMUSERSR

branches: 1.6.2; 1.6.4; 1.6.6;
Support a MEMSIZE option

If there is more than 256MB of ram, add the first 256MB into a separate
VM freelist and specifiy that PMAP_ALLOC_POOLPAGE allocate using that freelist.

add call to bcm53xx_dma_bootstrap.

Print out u-boot args

branches: 1.2.2;
Include PCI outbound windows in the kernel IO region. Make sure these start
on a SuperSection boundary.

Add support for the BCM95301X development board

Convert remaining armv7 kernels to generic start and remove a bunch of
code including a9_mpsubr.S.

Thanks to Lwazi Dube for testing PANDABOARD and BEAGLEBONE.

Centralise defparam CONSADDR, CONSPEED, CONMODE and CONADDR into
opt_console.h and adjust.

branches: 1.12.16; 1.12.18;
Remove #define VERBOSE_INIT_ARM

branches: 1.11.6;
Rework PIC method to be simplier. Change be more cortex neutral.

branches: 1.10.2;
After loading the pc-relative offset, clear the upper the 4 bits incase
.start starts at a different address than .text (bcm56340).

Use the right BCM563XX symbol

Support for the Broadcom BCM56340 iProc based switch.

If this is a BE kernel, force ourselves into BE just in case we aren't.
(setting SCTRL[EE] is done elsewhere).

Add MD_CPU_HATCH

branches: 1.5.2;
a9_cpuinit -> arm_cpuinit

branches: 1.4.2; 1.4.4;
Print out u-boot args

branches: 1.3.2;
Include PCI outbound windows in the kernel IO region. Make sure these start
on a SuperSection boundary.

Use the common code in <arm/cortex/a9_mpsubr.S>

Add support for the BCM95301X development board

branches: 1.2.4; 1.2.6; 1.2.16;
Include PCI outbound windows in the kernel IO region. Make sure these start
on a SuperSection boundary.

Add support for the BCM95301X development board

Convert remaining armv7 kernels to generic start and remove a bunch of
code including a9_mpsubr.S.

Thanks to Lwazi Dube for testing PANDABOARD and BEAGLEBONE.

branches: 1.2.4; 1.2.6; 1.2.16; 1.2.46;
Include PCI outbound windows in the kernel IO region. Make sure these start
on a SuperSection boundary.

Add support for the BCM95301X development board