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arm: at91/spl: atmel_sfr: move saic redirect to separate file

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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>
This commit is contained in:
Wenyou Yang 2015-11-05 16:37:53 +08:00 committed by Andreas Bießmann
parent b5665bf246
commit e4677f1ae2
5 changed files with 25 additions and 15 deletions
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2
arch/arm/mach-at91/Makefile
View file

@ -10,7 +10,7 @@ obj-$(CONFIG_AT91SAM9M10G45) += mpddrc.o spl_at91.o
obj-$(CONFIG_AT91SAM9N12) += mpddrc.o spl_at91.o
obj-$(CONFIG_AT91SAM9X5) += mpddrc.o spl_at91.o
obj-$(CONFIG_SAMA5D3) += mpddrc.o spl_atmel.o
obj-$(CONFIG_SAMA5D4) += mpddrc.o spl_atmel.o matrix.o
obj-$(CONFIG_SAMA5D4) += mpddrc.o spl_atmel.o matrix.o atmel_sfr.o
obj-y += spl.o
endif

13
arch/arm/mach-at91/armv7/sama5d4_devices.c
View file

@ -45,16 +45,3 @@ void at91_udp_hw_init(void)
at91_periph_clk_enable(ATMEL_ID_UDPHS);
}
#endif
#ifdef CONFIG_SPL_BUILD
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);
}
}
#endif

21
arch/arm/mach-at91/atmel_sfr.c Normal file
View file

@ -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);
}
}

1
arch/arm/mach-at91/include/mach/sama5_sfr.h
View file

@ -32,7 +32,6 @@ struct atmel_sfr {
#define ATMEL_SFR_DDRCFG_FDQSIEN 0x00020000
/* Bit field in AICREDIR */
#define ATMEL_SFR_AICREDIR_KEY 0x5F67B102
#define ATMEL_SFR_AICREDIR_NSAIC 0x00000001
#endif

3
arch/arm/mach-at91/include/mach/sama5d4.h
View file

@ -204,6 +204,9 @@
#define H32MX_SLAVE_USB 5 /* USB Device & Host */
#define H32MX_SLAVE_SMD 6 /* Soft Modem (SMD) */
/* AICREDIR Unlock Key */
#define ATMEL_SFR_AICREDIR_KEY 0x5F67B102
/* sama5d4 series chip id definitions */
#define ARCH_ID_SAMA5D4 0x8a5c07c0
#define ARCH_EXID_SAMA5D41 0x00000001