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ARM: at91: introduce basic SAMA5D4 support

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Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
This commit is contained in:
Nicolas Ferre 2014-09-15 18:15:54 +02:00
parent bcc5fd49a0
commit 2dc850b62e
7 changed files with 106 additions and 0 deletions
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4
arch/arm/Kconfig.debug
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@ -101,6 +101,10 @@ choice
bool "Kernel low-level debugging on 9263 and 9g45"
depends on HAVE_AT91_DBGU1
config AT91_DEBUG_LL_DBGU2
bool "Kernel low-level debugging on sama5d4"
depends on HAVE_AT91_DBGU2
config DEBUG_BCM2835
bool "Kernel low-level debugging on BCM2835 PL011 UART"
depends on ARCH_BCM2835

18
arch/arm/mach-at91/Kconfig
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@ -12,6 +12,9 @@ config HAVE_AT91_DBGU0
config HAVE_AT91_DBGU1
bool
config HAVE_AT91_DBGU2
bool
config AT91_USE_OLD_CLK
bool
@ -106,6 +109,21 @@ config SOC_SAMA5D3
help
Select this if you are using one of Atmel's SAMA5D3 family SoC.
This support covers SAMA5D31, SAMA5D33, SAMA5D34, SAMA5D35, SAMA5D36.
config SOC_SAMA5D4
bool "SAMA5D4 family"
select SOC_SAMA5
select HAVE_AT91_DBGU2
select CLKSRC_MMIO
select CACHE_L2X0
select CACHE_PL310
select HAVE_FB_ATMEL
select HAVE_AT91_UTMI
select HAVE_AT91_SMD
select HAVE_AT91_USB_CLK
select HAVE_AT91_H32MX
help
Select this if you are using one of Atmel's SAMA5D4 family SoC.
endif
if SOC_SAM_V4_V5

1
arch/arm/mach-at91/Makefile
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@ -23,6 +23,7 @@ obj-$(CONFIG_SOC_AT91SAM9N12) += at91sam9n12.o
obj-$(CONFIG_SOC_AT91SAM9X5) += at91sam9x5.o
obj-$(CONFIG_SOC_AT91SAM9RL) += at91sam9rl.o
obj-$(CONFIG_SOC_SAMA5D3) += sama5d3.o
obj-$(CONFIG_SOC_SAMA5D4) += sama5d4.o
obj-$(CONFIG_ARCH_AT91RM9200) += at91rm9200_devices.o
obj-$(CONFIG_ARCH_AT91SAM9260) += at91sam9260_devices.o

9
arch/arm/mach-at91/include/mach/cpu.h
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@ -86,6 +86,9 @@ enum at91_soc_type {
/* SAMA5D3 */
AT91_SOC_SAMA5D3,
/* SAMA5D4 */
AT91_SOC_SAMA5D4,
/* Unknown type */
AT91_SOC_UNKNOWN,
};
@ -211,6 +214,12 @@ static inline int at91_soc_is_detected(void)
#define cpu_is_sama5d3() (0)
#endif
#ifdef CONFIG_SOC_SAMA5D4
#define cpu_is_sama5d4() (at91_soc_initdata.type == AT91_SOC_SAMA5D4)
#else
#define cpu_is_sama5d4() (0)
#endif
/*
* Since this is ARM, we will never run on any AVR32 CPU. But these
* definitions may reduce clutter in common drivers.

33
arch/arm/mach-at91/include/mach/sama5d4.h Normal file
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@ -0,0 +1,33 @@
/*
* Chip-specific header file for the SAMA5D4 family
*
* Copyright (C) 2013 Atmel Corporation,
* Nicolas Ferre <nicolas.ferre@atmel.com>
*
* Common definitions.
* Based on SAMA5D4 datasheet.
*
* Licensed under GPLv2 or later.
*/
#ifndef SAMA5D4_H
#define SAMA5D4_H
/*
* User Peripheral physical base addresses.
*/
#define SAMA5D4_BASE_USART3 0xfc00c000 /* (USART3 non-secure) Base Address */
#define SAMA5D4_BASE_PMC 0xf0018000 /* (PMC) Base Address */
#define SAMA5D4_BASE_MPDDRC 0xf0010000 /* (MPDDRC) Base Address */
#define SAMA5D4_BASE_PIOD 0xfc068000 /* (PIOD) Base Address */
/* Some other peripherals */
#define SAMA5D4_BASE_SYS2 SAMA5D4_BASE_PIOD
/*
* Internal Memory.
*/
#define SAMA5D4_NS_SRAM_BASE 0x00210000 /* Internal SRAM base address Non-Secure */
#define SAMA5D4_NS_SRAM_SIZE (64 * SZ_1K) /* Internal SRAM size Non-Secure part (64Kb) */
#endif

36
arch/arm/mach-at91/sama5d4.c Normal file
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@ -0,0 +1,36 @@
/*
* Chip-specific setup code for the SAMA5D4 family
*
* Copyright (C) 2013 Atmel Corporation,
* Nicolas Ferre <nicolas.ferre@atmel.com>
*
* Licensed under GPLv2 or later.
*/
#include <linux/module.h>
#include <linux/dma-mapping.h>
#include <linux/clk/at91_pmc.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <mach/sama5d4.h>
#include <mach/cpu.h>
#include <mach/hardware.h>
#include "soc.h"
#include "generic.h"
#include "sam9_smc.h"
/* --------------------------------------------------------------------
* Processor initialization
* -------------------------------------------------------------------- */
static void __init sama5d4_map_io(void)
{
at91_init_sram(0, SAMA5D4_NS_SRAM_BASE, SAMA5D4_NS_SRAM_SIZE);
}
AT91_SOC_START(sama5d4)
.map_io = sama5d4_map_io,
AT91_SOC_END

5
arch/arm/mach-at91/soc.h
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@ -24,6 +24,7 @@ extern struct at91_init_soc at91sam9rl_soc;
extern struct at91_init_soc at91sam9x5_soc;
extern struct at91_init_soc at91sam9n12_soc;
extern struct at91_init_soc sama5d3_soc;
extern struct at91_init_soc sama5d4_soc;
#define AT91_SOC_START(_name) \
struct at91_init_soc __initdata _name##_soc \
@ -74,3 +75,7 @@ static inline int at91_soc_is_enabled(void)
#if !defined(CONFIG_SOC_SAMA5D3)
#define sama5d3_soc at91_boot_soc
#endif
#if !defined(CONFIG_SOC_SAMA5D4)
#define sama5d4_soc at91_boot_soc
#endif