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6a3fc8c330
The L2 cache is present on the newer SAMA5D2 and SAMA5D4 families, but
apparently not for the older SAMA5D3.
Solves a build-time regression with the following symptom:
sama5.c:(.init.text+0x48): undefined reference to `outer_cache'
Fixes: 3b5a7ca7d2 ("ARM: at91: setup outer cache .write_sec() callback if needed")
Signed-off-by: Peter Rosin <peda@axentia.se>
[claudiu.beznea: delete "At least not always." from commit description]
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/b7f8dacc-5e1f-0eb2-188e-3ad9a9f7613d@axentia.se
79 lines
1.8 KiB
C
79 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Setup code for SAMA5
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*
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* Copyright (C) 2013 Atmel,
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* 2013 Ludovic Desroches <ludovic.desroches@atmel.com>
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*/
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#include <linux/of.h>
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#include <linux/of_platform.h>
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#include <asm/hardware/cache-l2x0.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/outercache.h>
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#include <asm/system_misc.h>
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#include "generic.h"
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#include "sam_secure.h"
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static void sama5_l2c310_write_sec(unsigned long val, unsigned reg)
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{
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/* OP-TEE configures the L2 cache and does not allow modifying it yet */
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}
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static void __init sama5_secure_cache_init(void)
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{
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sam_secure_init();
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if (IS_ENABLED(CONFIG_OUTER_CACHE) && sam_linux_is_optee_available())
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outer_cache.write_sec = sama5_l2c310_write_sec;
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}
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static void __init sama5_dt_device_init(void)
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{
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of_platform_default_populate(NULL, NULL, NULL);
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sama5_pm_init();
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}
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static const char *const sama5_dt_board_compat[] __initconst = {
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"atmel,sama5",
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NULL
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};
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DT_MACHINE_START(sama5_dt, "Atmel SAMA5")
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/* Maintainer: Atmel */
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.init_machine = sama5_dt_device_init,
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.dt_compat = sama5_dt_board_compat,
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MACHINE_END
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static const char *const sama5_alt_dt_board_compat[] __initconst = {
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"atmel,sama5d4",
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NULL
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};
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DT_MACHINE_START(sama5_alt_dt, "Atmel SAMA5")
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/* Maintainer: Atmel */
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.init_machine = sama5_dt_device_init,
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.dt_compat = sama5_alt_dt_board_compat,
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.l2c_aux_mask = ~0UL,
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MACHINE_END
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static void __init sama5d2_init(void)
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{
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of_platform_default_populate(NULL, NULL, NULL);
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sama5d2_pm_init();
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}
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static const char *const sama5d2_compat[] __initconst = {
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"atmel,sama5d2",
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NULL
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};
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DT_MACHINE_START(sama5d2, "Atmel SAMA5")
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/* Maintainer: Atmel */
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.init_machine = sama5d2_init,
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.init_early = sama5_secure_cache_init,
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.dt_compat = sama5d2_compat,
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.l2c_aux_mask = ~0UL,
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MACHINE_END
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