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at91: Support for the at91sam9g20 : Atmel 400Mhz ARM 926ej-s SOC.

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AT91sam9g20 is an evolution of the at91sam9260 with a faster clock speed.

The AT91SAM9G20-EK board is an updated revision of the AT91SAM9260-EK board.
It is essentially the same, with a few minor differences.

Here is the chip page on Atmel website:
http://www.atmel.com/dyn/products/product_card.asp?part_id=4337

Signed-off-by: Justin Waters <justin.waters@timesys.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
This commit is contained in:
Nicolas Ferre
2009-03-22 14:48:16 +01:00
committed by Jean-Christophe PLAGNIOL-VILLARD
parent 118d168035
commit df486b1fa3
9 changed files with 46 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/asm-arm/arch-at91/hardware.h
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@@ -18,7 +18,7 @@
#if defined(CONFIG_AT91RM9200)
#include <asm/arch/at91rm9200.h>
#elif defined(CONFIG_AT91SAM9260)
#elif defined(CONFIG_AT91SAM9260) || defined(CONFIG_AT91SAM9G20)
#include <asm/arch/at91sam9260.h>
#define AT91_BASE_SPI AT91SAM9260_BASE_SPI0
#define AT91_ID_UHP AT91SAM9260_ID_UHP

23
include/configs/at91sam9260ek.h
View File

@@ -3,7 +3,7 @@
* Stelian Pop <stelian.pop@leadtechdesign.com>
* Lead Tech Design <www.leadtechdesign.com>
*
* Configuation settings for the AT91SAM9260EK board.
* Configuation settings for the AT91SAM9260EK & AT91SAM9G20EK boards.
*
* See file CREDITS for list of people who contributed to this
* project.
@@ -28,18 +28,26 @@
#define __CONFIG_H
/* ARM asynchronous clock */
#define AT91_CPU_NAME "AT91SAM9260"
#define AT91_MAIN_CLOCK 18432000 /* 18.432 MHz crystal */
#define AT91_MASTER_CLOCK 100000000 /* peripheral */
#define AT91_CPU_CLOCK 200000000 /* cpu */
#define CONFIG_SYS_AT91_PLLB 0x107c3e18 /* PLLB settings for USB */
#define CONFIG_SYS_HZ 1000000 /* 1us resolution */
#define AT91_SLOW_CLOCK 32768 /* slow clock */
#define CONFIG_ARM926EJS 1 /* This is an ARM926EJS Core */
#ifdef CONFIG_AT91SAM9G20EK
#define AT91_CPU_NAME "AT91SAM9G20"
#define AT91_MASTER_CLOCK 132000000 /* peripheral */
#define AT91_CPU_CLOCK 396000000 /* cpu */
#define CONFIG_AT91SAM9G20 1 /* It's an Atmel AT91SAM9G20 SoC*/
#else
#define AT91_CPU_NAME "AT91SAM9260"
#define AT91_MASTER_CLOCK 100000000 /* peripheral */
#define AT91_CPU_CLOCK 200000000 /* cpu */
#define CONFIG_AT91SAM9260 1 /* It's an Atmel AT91SAM9260 SoC*/
#define CONFIG_AT91SAM9260EK 1 /* on an AT91SAM9260EK Board */
#endif
#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */
#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */
@@ -101,7 +109,12 @@
#define CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0 0xC0000000 /* CS0 */
#define CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS1 0xD0000000 /* CS1 */
#define AT91_SPI_CLK 15000000
#ifdef CONFIG_AT91SAM9G20EK
#define DATAFLASH_TCSS (0x22 << 16)
#else
#define DATAFLASH_TCSS (0x1a << 16)
#endif
#define DATAFLASH_TCHS (0x1 << 24)
/* NAND flash */