diff options
Diffstat (limited to 'arch/arm/mach-bcm/board_bcm281xx.c')
-rw-r--r-- | arch/arm/mach-bcm/board_bcm281xx.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/arch/arm/mach-bcm/board_bcm281xx.c b/arch/arm/mach-bcm/board_bcm281xx.c new file mode 100644 index 000000000000..8d9f931164bb --- /dev/null +++ b/arch/arm/mach-bcm/board_bcm281xx.c @@ -0,0 +1,75 @@ +/* + * Copyright (C) 2012-2013 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 + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/of_platform.h> +#include <linux/init.h> +#include <linux/device.h> +#include <linux/platform_device.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; + + np = of_find_compatible_node(NULL, NULL, "brcm,bcm11351"); + if (np) { + if (of_device_is_available(np)) + bcm_kona_setup_restart(); + of_node_put(np); + } + /* Restart setup for other boards goes here */ +} + +static void __init board_init(void) +{ + of_platform_populate(NULL, of_default_bus_match_table, NULL, + &platform_bus); + + bcm_board_setup_restart(); + kona_l2_cache_init(); +} + +static const char * const bcm11351_dt_compat[] = { "brcm,bcm11351", NULL, }; + +DT_MACHINE_START(BCM11351_DT, "Broadcom Application Processor") + .init_time = clocksource_of_init, + .init_machine = board_init, + .restart = bcm_kona_restart, + .dt_compat = bcm11351_dt_compat, +MACHINE_END |