Commit Graph

5 Commits

Author SHA1 Message Date
Florian Fainelli f780429adf soc: brcmstb: biuctrl: Move to early_initcall
Being called during early_initcall() is early enough that it occurs
before SMP initialization, which is all we care about for the Bus
Interface Unit configuration.

This solves lack of BIU initialization on ARM64 platforms where we do
not have an anchor where to put the BIU initialization (since there are
no machine descriptors).

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2017-12-20 17:37:44 -08:00
Florian Fainelli d0cf9d8a3c ARM: brcmstb: Add earlyprintk support using run-time checks
The SUN_TOP_CTRL_FAMILY_ID register  is at a fixed absolute address for
all of our supported chips, so utilize its value to determine what the
UARTA base address should be based on the value we read.

Since the code is called both during decompressor when the MMU is off,
and after the MMU has been turned on in the kernel, and we want to do
the lookup only once, we use the same technique as tegra.S and have a
shared storage location between the decompressor and the kernel.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2016-08-08 11:14:09 -07:00
Florian Fainelli c4a8ea9e06 ARM: brcmstb: Setup BIU control registers during boot
Call brcmstb_biuctrl_init() in brcmstb's init_irq machine descriptor
callback since we need to setup the Bus Interface Unit before SMP in
particular, but we also need to be able to remap registers.

Acked-by: Gregory Fong <gregory.0xf0@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2015-10-09 13:42:18 -07:00
Uwe Kleine-König 543c5040f5 ARM: make arrays containing machine compatible strings const
The definition

	static const char *axxia_dt_match[] __initconst = {
		...

defines a changable array of constant strings. That is you must not do:

	*axxia_dt_match[0] = 'k';

but

	axxia_dt_match[0] = "different string";

is fine. So the annotation __initconst is wrong and yields a compiler
error when other really const variables are added with __initconst.

As the struct machine_desc member dt_compat is declared as

	const char *const *dt_compat;

making the arrays const is the better alternative over changing all
annotations to __initdata.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-02-19 09:44:17 +01:00
Marc Carino 4fbe66d990 ARM: brcmstb: add infrastructure for ARM-based Broadcom STB SoCs
The BCM7xxx series of Broadcom SoCs are used primarily in set-top boxes.

This patch adds machine support for the ARM-based Broadcom SoCs.

Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Matt Porter <mporter@linaro.org>
2014-07-28 09:58:52 -04:00