Commit c268a743 authored by Nicolas Ferre's avatar Nicolas Ferre Committed by Olof Johansson

ARM: at91/soc: add basic support for new sama5d2 SoC

Add Kconfig entries, header file changes and addition to the documentation.
The early debug infrastructure is also added for easy development.
Signed-off-by: default avatarLudovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: default avatarNicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: default avatarAlexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
parent f15107f4
......@@ -90,6 +90,11 @@ the Atmel website: http://www.atmel.com.
+ Datasheet
http://www.atmel.com/Images/Atmel-11238-32-bit-Cortex-A5-Microcontroller-SAMA5D4_Datasheet.pdf
- sama5d2 family
- sama5d27
+ Datasheet
Coming soon
Linux kernel information
------------------------
......
......@@ -27,6 +27,8 @@ compatible: must be one of:
o "atmel,at91sam9xe"
* "atmel,sama5" for SoCs using a Cortex-A5, shall be extended with the specific
SoC family:
o "atmel,sama5d2" shall be extended with the specific SoC compatible:
- "atmel,sama5d27"
o "atmel,sama5d3" shall be extended with the specific SoC compatible:
- "atmel,sama5d31"
- "atmel,sama5d33"
......
......@@ -141,6 +141,12 @@ choice
depends on ARCH_AT91
depends on SOC_SAMA5
config AT91_DEBUG_LL_DBGU3
bool "Kernel low-level debugging on sama5d2"
select DEBUG_AT91_UART
depends on ARCH_AT91
depends on SOC_SAMA5
config DEBUG_BCM2835
bool "Kernel low-level debugging on BCM2835 PL011 UART"
depends on ARCH_BCM2835
......
......@@ -13,9 +13,12 @@
#define AT91_DBGU 0xfffff200 /* AT91_BASE_DBGU0 */
#elif defined(CONFIG_AT91_DEBUG_LL_DBGU1)
#define AT91_DBGU 0xffffee00 /* AT91_BASE_DBGU1 */
#else
#elif defined(CONFIG_AT91_DEBUG_LL_DBGU2)
/* On sama5d4, use USART3 as low level serial console */
#define AT91_DBGU 0xfc00c000 /* SAMA5D4_BASE_USART3 */
#else
/* On sama5d2, use UART1 as low level serial console */
#define AT91_DBGU 0xf8020000
#endif
#ifdef CONFIG_MMU
......
......@@ -8,6 +8,18 @@ menuconfig ARCH_AT91
select SOC_BUS
if ARCH_AT91
config SOC_SAMA5D2
bool "SAMA5D2 family" if ARCH_MULTI_V7
select SOC_SAMA5
select CACHE_L2X0
select HAVE_FB_ATMEL
select HAVE_AT91_UTMI
select HAVE_AT91_USB_CLK
select HAVE_AT91_H32MX
select HAVE_AT91_GENERATED_CLK
help
Select this if ou are using one of Atmel's SAMA5D2 family SoC.
config SOC_SAMA5D3
bool "SAMA5D3 family" if ARCH_MULTI_V7
select SOC_SAMA5
......
......@@ -18,6 +18,8 @@
#include "soc.h"
static const struct at91_soc sama5_socs[] = {
AT91_SOC(SAMA5D2_CIDR_MATCH, SAMA5D27_EXID_MATCH,
"sama5d27", "sama5d2"),
AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D31_EXID_MATCH,
"sama5d31", "sama5d3"),
AT91_SOC(SAMA5D3_CIDR_MATCH, SAMA5D33_EXID_MATCH,
......@@ -64,6 +66,7 @@ DT_MACHINE_START(sama5_dt, "Atmel SAMA5")
MACHINE_END
static const char *sama5_alt_dt_board_compat[] __initconst = {
"atmel,sama5d2",
"atmel,sama5d4",
NULL
};
......
......@@ -62,6 +62,9 @@ at91_soc_init(const struct at91_soc *socs);
#define AT91SAM9XE256_CIDR_MATCH 0x329a93a0
#define AT91SAM9XE512_CIDR_MATCH 0x329aa3a0
#define SAMA5D2_CIDR_MATCH 0x0a5c08c0
#define SAMA5D27_EXID_MATCH 0x00000021
#define SAMA5D3_CIDR_MATCH 0x0a5c07c0
#define SAMA5D31_EXID_MATCH 0x00444300
#define SAMA5D33_EXID_MATCH 0x00414300
......
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