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 ---
arch/arm/mach-at91/Makefile | 2 +- arch/arm/mach-at91/armv7/sama5d4_devices.c | 13 ------------- arch/arm/mach-at91/atmel_sfr.c | 21 +++++++++++++++++++++ arch/arm/mach-at91/include/mach/sama5_sfr.h | 1 - arch/arm/mach-at91/include/mach/sama5d4.h | 3 +++ 5 files changed, 25 insertions(+), 15 deletions(-) create mode 100644 arch/arm/mach-at91/atmel_sfr.c
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile index 649aff2..ca60397 100644 --- a/arch/arm/mach-at91/Makefile +++ b/arch/arm/mach-at91/Makefile @@ -6,7 +6,7 @@ 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
diff --git a/arch/arm/mach-at91/armv7/sama5d4_devices.c b/arch/arm/mach-at91/armv7/sama5d4_devices.c index 52f4862..ce33cd4 100644 --- a/arch/arm/mach-at91/armv7/sama5d4_devices.c +++ b/arch/arm/mach-at91/armv7/sama5d4_devices.c @@ -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 diff --git a/arch/arm/mach-at91/atmel_sfr.c b/arch/arm/mach-at91/atmel_sfr.c new file mode 100644 index 0000000..2bccb84 --- /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); + } +} diff --git a/arch/arm/mach-at91/include/mach/sama5_sfr.h b/arch/arm/mach-at91/include/mach/sama5_sfr.h index 3081d37..7b19a20 100644 --- a/arch/arm/mach-at91/include/mach/sama5_sfr.h +++ b/arch/arm/mach-at91/include/mach/sama5_sfr.h @@ -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 diff --git a/arch/arm/mach-at91/include/mach/sama5d4.h b/arch/arm/mach-at91/include/mach/sama5d4.h index 449cf0e..90085da 100644 --- a/arch/arm/mach-at91/include/mach/sama5d4.h +++ b/arch/arm/mach-at91/include/mach/sama5d4.h @@ -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