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author | Wenyou Yang <wenyou.yang@atmel.com> | 2015-11-05 16:37:53 +0800 |
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committer | Andreas Bießmann <andreas.devel@googlemail.com> | 2015-11-30 22:27:55 +0100 |
commit | e4677f1ae221ac615f32c993aaf3d2497ad5009d (patch) | |
tree | 1d00120182c85ca86032e58c245f5cc04dfcdae3 /arch/arm/mach-at91/atmel_sfr.c | |
parent | b5665bf2467ae7a83db7153bdc6faf520795fd0c (diff) | |
download | blackbird-obmc-uboot-e4677f1ae221ac615f32c993aaf3d2497ad5009d.tar.gz blackbird-obmc-uboot-e4677f1ae221ac615f32c993aaf3d2497ad5009d.zip |
arm: at91/spl: atmel_sfr: move saic redirect to separate file
To make saic redirect code sharing with other SoCs, move the
saic redirect code from SAMA5D4 particular file,
mach-at91/armv7/sama5d4_devices.c to a separate file,
mach-at91/atmel_sfr.c
Move ATMEL_SFR_AICREDIR_KEY definition to sama5d4.h, because each
SoC has its own value.
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>
Diffstat (limited to 'arch/arm/mach-at91/atmel_sfr.c')
-rw-r--r-- | arch/arm/mach-at91/atmel_sfr.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/atmel_sfr.c b/arch/arm/mach-at91/atmel_sfr.c new file mode 100644 index 0000000000..2bccb840c1 --- /dev/null +++ b/arch/arm/mach-at91/atmel_sfr.c @@ -0,0 +1,21 @@ +/* + * Copyright (C) 2015 Atmel Corporation + * Wenyou Yang <wenyou.yang@atmel.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/sama5_sfr.h> + +void redirect_int_from_saic_to_aic(void) +{ + struct atmel_sfr *sfr = (struct atmel_sfr *)ATMEL_BASE_SFR; + u32 key32; + + if (!(readl(&sfr->aicredir) & ATMEL_SFR_AICREDIR_NSAIC)) { + key32 = readl(&sfr->sn1) ^ ATMEL_SFR_AICREDIR_KEY; + writel((key32 | ATMEL_SFR_AICREDIR_NSAIC), &sfr->aicredir); + } +} |