[U-Boot] [PATCH] at91: Support for the at91sam9g20 : Atmel 400Mhz ARM 926ej-s SOC.

Nicolas Ferre
2009-03-10T15:11:52Z

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>
---
MAKEALL | 1 +
Makefile | 14 ++++++++++++--
board/atmel/at91sam9260ek/at91sam9260ek.c | 5 +++++
cpu/arm926ejs/at91/usb.c | 4 ++--
doc/README.at91 | 2 +-
drivers/net/macb.c | 4 ++--
include/asm-arm/arch-at91/hardware.h | 2 +-
include/configs/at91sam9260ek.h | 23 ++++++++++++++++++-----
8 files changed, 42 insertions(+), 13 deletions(-)

diff --git a/MAKEALL b/MAKEALL
index 25d0647..7ce4b70 100755
--- a/MAKEALL
+++ b/MAKEALL
@@ -569,6 +569,7 @@ LIST_at91=" \
at91rm9200dk \
at91rm9200ek \
at91sam9260ek \
+ at91sam9g20ek \
at91sam9261ek \
at91sam9263ek \
at91sam9rlek \
diff --git a/Makefile b/Makefile
index c24115d..45cb8b6 100644
--- a/Makefile
+++ b/Makefile
@@ -2648,8 +2648,18 @@ at91cap9adk_config : unconfig
at91sam9260ek_nandflash_config \
at91sam9260ek_dataflash_cs0_config \
at91sam9260ek_dataflash_cs1_config \
-at91sam9260ek_config : unconfig
- @mkdir -p $(obj)include
+at91sam9260ek_config \
+at91sam9g20ek_nandflash_config \
+at91sam9g20ek_dataflash_cs0_config \
+at91sam9g20ek_dataflash_cs1_config \
+at91sam9g20ek_config : unconfig
+ @mkdir -p $(obj)include
+ @if [ "$(findstring 9g20,$@)" ] ; then \
+ echo "#define CONFIG_AT91SAM9G20EK 1" >>$(obj)include/config.h ; \
+ $(XECHO) "... 9G20 Variant" ; \
+ else \
+ echo "#define CONFIG_AT91SAM9260EK 1" >>$(obj)include/config.h ; \
+ fi;
@if [ "$(findstring _nandflash,$@)" ] ; then \
echo "#define CONFIG_SYS_USE_NANDFLASH 1" >>$(obj)include/config.h ; \
$(XECHO) "... with environment variable in NAND FLASH" ; \
diff --git a/board/atmel/at91sam9260ek/at91sam9260ek.c b/board/atmel/at91sam9260ek/at91sam9260ek.c
index ef99b8b..58599fa 100644
--- a/board/atmel/at91sam9260ek/at91sam9260ek.c
+++ b/board/atmel/at91sam9260ek/at91sam9260ek.c
@@ -212,8 +212,13 @@ int board_init(void)
/* Enable Ctrlc */
console_init_f();

+#ifdef CONFIG_AT91SAM9G20EK
+ /* arch number of AT91SAM9260EK-Board */
+ gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9G20EK;
+#else
/* arch number of AT91SAM9260EK-Board */
gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9260EK;
+#endif
/* adress of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;

diff --git a/cpu/arm926ejs/at91/usb.c b/cpu/arm926ejs/at91/usb.c
index a15ab16..7c44ad0 100644
--- a/cpu/arm926ejs/at91/usb.c
+++ b/cpu/arm926ejs/at91/usb.c
@@ -33,7 +33,7 @@ int usb_cpu_init(void)
{

#if defined(CONFIG_AT91CAP9) || defined(CONFIG_AT91SAM9260) || \
- defined(CONFIG_AT91SAM9263)
+ defined(CONFIG_AT91SAM9263) || defined(CONFIG_AT91SAM9G20)
/* Enable PLLB */
at91_sys_write(AT91_CKGR_PLLBR, CONFIG_SYS_AT91_PLLB);
while ((at91_sys_read(AT91_PMC_SR) & AT91_PMC_LOCKB) != AT91_PMC_LOCKB)
@@ -62,7 +62,7 @@ int usb_cpu_stop(void)
#endif

#if defined(CONFIG_AT91CAP9) || defined(CONFIG_AT91SAM9260) || \
- defined(CONFIG_AT91SAM9263)
+ defined(CONFIG_AT91SAM9263) || defined(CONFIG_AT91SAM9G20)
/* Disable PLLB */
at91_sys_write(AT91_CKGR_PLLBR, 0);
while ((at91_sys_read(AT91_PMC_SR) & AT91_PMC_LOCKB) != 0)
diff --git a/doc/README.at91 b/doc/README.at91
index c666d82..f1ea8f3 100644
--- a/doc/README.at91
+++ b/doc/README.at91
@@ -4,7 +4,7 @@ http://atmel.com/dyn/products/tools.asp?family_id=605#1443

I. Board mapping & boot media
------------------------------------------------------------------------------
-AT91SAM9260EK & AT91SAM9XEEK
+AT91SAM9260EK, AT91SAM9G20EK & AT91SAM9XEEK
------------------------------------------------------------------------------

Memory map
diff --git a/drivers/net/macb.c b/drivers/net/macb.c
index af0409b..6de0a04 100644
--- a/drivers/net/macb.c
+++ b/drivers/net/macb.c
@@ -447,14 +447,14 @@ static int macb_init(struct eth_device *netdev, bd_t *bd)
/* choose RMII or MII mode. This depends on the board */
#ifdef CONFIG_RMII
#if defined(CONFIG_AT91CAP9) || defined(CONFIG_AT91SAM9260) || \
- defined(CONFIG_AT91SAM9263)
+ defined(CONFIG_AT91SAM9263) || defined(CONFIG_AT91SAM9G20)
macb_writel(macb, USRIO, MACB_BIT(RMII) | MACB_BIT(CLKEN));
#else
macb_writel(macb, USRIO, 0);
#endif
#else
#if defined(CONFIG_AT91CAP9) || defined(CONFIG_AT91SAM9260) || \
- defined(CONFIG_AT91SAM9263)
+ defined(CONFIG_AT91SAM9263) || defined(CONFIG_AT91SAM9G20)
macb_writel(macb, USRIO, MACB_BIT(CLKEN));
#else
macb_writel(macb, USRIO, MACB_BIT(MII));
diff --git a/include/asm-arm/arch-at91/hardware.h b/include/asm-arm/arch-at91/hardware.h
index b881e4e..4f0e1a7 100644
--- a/include/asm-arm/arch-at91/hardware.h
+++ b/include/asm-arm/arch-at91/hardware.h
@@ -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
diff --git a/include/configs/at91sam9260ek.h b/include/configs/at91sam9260ek.h
index 7ab08a1..e5ceb01 100644
--- a/include/configs/at91sam9260ek.h
+++ b/include/configs/at91sam9260ek.h
@@ -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 */
@@ -96,7 +104,12 @@
#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 */
--
1.5.3.7