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ARM: bcm281xx: Move kona_l2_cache_init() so it can be shared

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In preparation for future SoCs, move kona_l2_cache_init() from board
specific board_bcm281xx.c to shared kona.c, so multiple SoC families
can make use of it. Also change the return type to "void", since we
never look at the return code anyway.

Signed-off-by: Markus Mayer <markus.mayer@linaro.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
This commit is contained in:
Markus Mayer 2014-02-25 14:17:43 -08:00 committed by Matt Porter
parent 9c6423aa7e
commit 8b1c342629
3 changed files with 32 additions and 27 deletions
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26
arch/arm/mach-bcm/board_bcm281xx.c
View file

@ -12,37 +12,13 @@
*/
#include <linux/of_platform.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/of_address.h>
#include <linux/clocksource.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/hardware/cache-l2x0.h>
#include "bcm_kona_smc.h"
#include "kona.h"
static int __init kona_l2_cache_init(void)
{
if (!IS_ENABLED(CONFIG_CACHE_L2X0))
return 0;
if (bcm_kona_smc_init() < 0) {
pr_info("Kona secure API not available. Skipping L2 init\n");
return 0;
}
bcm_kona_smc(SSAPI_ENABLE_L2_CACHE, 0, 0, 0, 0);
/*
* The aux_val and aux_mask have no effect since L2 cache is already
* enabled. Pass 0s for aux_val and 1s for aux_mask for default value.
*/
return l2x0_of_init(0, ~0);
}
static void bcm_board_setup_restart(void)
{
struct device_node *np;

30
arch/arm/mach-bcm/kona.c
View file

@ -1,5 +1,5 @@
/*
* Copyright (C) 2013 Broadcom Corporation
* Copyright (C) 2012-2014 Broadcom Corporation
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
@ -12,10 +12,38 @@
*/
#include <linux/of_address.h>
#include <linux/of_platform.h>
#include <asm/hardware/cache-l2x0.h>
#include <asm/io.h>
#include "bcm_kona_smc.h"
#include "kona.h"
void __init kona_l2_cache_init(void)
{
int ret;
if (!IS_ENABLED(CONFIG_CACHE_L2X0))
return;
ret = bcm_kona_smc_init();
if (ret) {
pr_info("Secure API not available (%d). Skipping L2 init.\n",
ret);
return;
}
bcm_kona_smc(SSAPI_ENABLE_L2_CACHE, 0, 0, 0, 0);
/*
* The aux_val and aux_mask have no effect since L2 cache is already
* enabled. Pass 0s for aux_val and 1s for aux_mask for default value.
*/
ret = l2x0_of_init(0, ~0);
if (ret)
pr_err("Couldn't enable L2 cache: %d\n", ret);
}
static void __iomem *watchdog_base;
void bcm_kona_setup_restart(void)

3
arch/arm/mach-bcm/kona.h
View file

@ -1,5 +1,5 @@
/*
* Copyright (C) 2013 Broadcom Corporation
* Copyright (C) 2012-2014 Broadcom Corporation
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
@ -13,5 +13,6 @@
#include <linux/reboot.h>
void __init kona_l2_cache_init(void);
void bcm_kona_setup_restart(void);
void bcm_kona_restart(enum reboot_mode mode, const char *cmd);