[U-Boot] [PATCH v4 1/2] cpuat91: convert to new at91 soc architecture

["Eric Bénard" <eric@eukrea.com>]

convert the board to the new soc architecture
update default config
i2c upgrade taken from eb_cpux9k2.h & board/BuS/eb_cpux9k2/cpux9k2.c

Signed-off-by: Eric B?nard <eric@eukrea.com>
---
v4 : rebased against current HEAD
v3 : send to Hong Xu
v2 : send to Tom Rix's new email

 Makefile                       |    2 +-
 board/eukrea/cpuat91/cpuat91.c |   53 ++++++++++++++++-----------------------
 include/configs/cpuat91.h      |   45 +++++++++++++++++++++++----------
 3 files changed, 54 insertions(+), 46 deletions(-)

diff --git a/Makefile b/Makefile
index 4f1cb1b..f9e0eb9 100644
--- a/Makefile
+++ b/Makefile
@@ -1883,7 +1883,7 @@ CPUAT91_RAM_config \
 CPUAT91_config	:	unconfig
 	@mkdir -p $(obj)include
 	@echo "#define CONFIG_$(@:_config=) 1"	>$(obj)include/config.h
-	@$(MKCONFIG) -n $@ -a cpuat91 arm arm920t cpuat91 eukrea at91rm9200
+	@$(MKCONFIG) -n $@ -a cpuat91 arm arm920t cpuat91 eukrea at91
 
 #########################################################################
 ## ARM926EJ-S Systems
diff --git a/board/eukrea/cpuat91/cpuat91.c b/board/eukrea/cpuat91/cpuat91.c
index 0017962..cd4d42c 100644
--- a/board/eukrea/cpuat91/cpuat91.c
+++ b/board/eukrea/cpuat91/cpuat91.c
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2006 Eukrea Electromatique <www.eukrea.com>
+ * (C) Copyright 2006-2010 Eukrea Electromatique <www.eukrea.com>
  * Eric Benard <eric@eukrea.com>
  * based on at91rm9200dk.c which is :
  * (C) Copyright 2002
@@ -27,13 +27,11 @@
 
 #include <common.h>
 #include <netdev.h>
-#include <asm/arch/AT91RM9200.h>
-#include <asm/io.h>
 
-#if defined(CONFIG_DRIVER_ETHER)
-#include <at91rm9200_net.h>
-#include <ks8721.h>
-#endif
+#include <asm/io.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/at91_pio.h>
+#include <asm/arch/at91_pmc.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -61,31 +59,7 @@ int dram_init(void)
 	return 0;
 }
 
-#if defined(CONFIG_DRIVER_ETHER)
-#if defined(CONFIG_CMD_NET)
-
-/*
- * Name:
- *	at91rm9200_GetPhyInterface
- * Description:
- *	Initialise the interface functions to the PHY
- * Arguments:
- *	None
- * Return value:
- *	None
- */
-void at91rm9200_GetPhyInterface(AT91PS_PhyOps p_phyops)
-{
-	p_phyops->Init = ks8721_initphy;
-	p_phyops->IsPhyConnected = ks8721_isphyconnected;
-	p_phyops->GetLinkSpeed = ks8721_getlinkspeed;
-	p_phyops->AutoNegotiate = ks8721_autonegotiate;
-}
-
-#endif	/* CONFIG_CMD_NET */
-#endif	/* CONFIG_DRIVER_ETHER */
 #ifdef CONFIG_DRIVER_AT91EMAC
-
 int board_eth_init(bd_t *bis)
 {
 	int rc = 0;
@@ -93,3 +67,20 @@ int board_eth_init(bd_t *bis)
 	return rc;
 }
 #endif
+
+#ifdef CONFIG_SOFT_I2C
+void i2c_init_board(void)
+{
+	u32 pin;
+	at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE;
+	at91_pio_t *pio = (at91_pio_t *) AT91_PIO_BASE;
+
+	writel(1 << AT91_ID_PIOA, &pmc->pcer);
+	pin = AT91_PMX_AA_TWD | AT91_PMX_AA_TWCK;
+	writel(pin, &pio->pioa.idr);
+	writel(pin, &pio->pioa.pudr);
+	writel(pin, &pio->pioa.per);
+	writel(pin, &pio->pioa.oer);
+	writel(pin, &pio->pioa.sodr);
+}
+#endif
diff --git a/include/configs/cpuat91.h b/include/configs/cpuat91.h
index 049298c..b012782 100644
--- a/include/configs/cpuat91.h
+++ b/include/configs/cpuat91.h
@@ -1,5 +1,5 @@
 /*
- * CPUAT91 by (C) Copyright 2006 Eric Benard
+ * CPUAT91 by (C) Copyright 2006-2010 Eric Benard
  * eric at eukrea.com
  *
  * Configuration settings for the CPUAT91 board.
@@ -23,15 +23,12 @@
  * MA 02111-1307 USA
  */
 
-#ifndef __CONFIG_H
-#define __CONFIG_H
-
-#define CONFIG_AT91_LEGACY
+#ifndef _CONFIG_CPUAT91_H
+#define _CONFIG_CPUAT91_H
 
 #ifdef CONFIG_CPUAT91_RAM
 #define CONFIG_SKIP_LOWLEVEL_INIT	1
 #define CONFIG_SKIP_RELOCATE_UBOOT	1
-#define CONFIG_CPUAT91			1
 #else
 #define CONFIG_BOOTDELAY		1
 #endif
@@ -43,6 +40,7 @@
 
 #define CONFIG_ARM920T			1
 #define CONFIG_AT91RM9200		1
+#define CONFIG_CPUAT91			1
 
 #undef CONFIG_USE_IRQ
 #define USE_920T_MMU			1
@@ -89,16 +87,36 @@
 #undef CONFIG_USART0
 #undef CONFIG_USART1
 
-#define CONFIG_HARD_I2C			1
+#undef CONFIG_HARD_I2C
+#define CONFIG_SOFT_I2C			1
+#define AT91_PIN_SDA			(1<<25)
+#define AT91_PIN_SCL			(1<<26)
+
+#define CONFIG_SYS_I2C_INIT_BOARD	1
+#define	CONFIG_SYS_I2C_SPEED		50000
+#define CONFIG_SYS_I2C_SLAVE		0
+
+#define I2C_INIT	i2c_init_board();
+#define I2C_ACTIVE	writel(AT91_PMX_AA_TWD, &pio->pioa.mddr);
+#define I2C_TRISTATE	writel(AT91_PMX_AA_TWD, &pio->pioa.mder);
+#define I2C_READ	((readl(&pio->pioa.pdsr) & AT91_PMX_AA_TWD) != 0)
+#define I2C_SDA(bit)						\
+	if (bit)						\
+		writel(AT91_PMX_AA_TWD, &pio->pioa.sodr);	\
+	else							\
+		writel(AT91_PMX_AA_TWD, &pio->pioa.codr);
+#define I2C_SCL(bit)						\
+	if (bit)						\
+		writel(AT91_PMX_AA_TWCK, &pio->pioa.sodr);	\
+	else							\
+		writel(AT91_PMX_AA_TWCK, &pio->pioa.codr);
+
+#define I2C_DELAY	udelay(2500000/CONFIG_SYS_I2C_SPEED)
 
-#if defined(CONFIG_HARD_I2C)
-#define	CONFIG_SYS_I2C_SPEED			50000
-#define CONFIG_SYS_I2C_SLAVE			0
 #define CONFIG_SYS_I2C_EEPROM_ADDR		0x54
 #define CONFIG_SYS_I2C_EEPROM_ADDR_LEN		1
 #define CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW	1
 #define	CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS	10
-#endif
 
 #define CONFIG_BOOTP_BOOTFILESIZE	1
 #define CONFIG_BOOTP_BOOTPATH		1
@@ -117,10 +135,8 @@
 #undef CONFIG_CMD_LOADS
 #undef CONFIG_CMD_NFS
 
-#if defined(CONFIG_HARD_I2C)
 #define CONFIG_CMD_EEPROM		1
 #define CONFIG_CMD_I2C			1
-#endif
 
 #define CONFIG_NR_DRAM_BANKS			1
 #define PHYS_SDRAM				0x20000000
@@ -148,6 +164,7 @@
 #define PHYS_FLASH_1				0x10000000
 #define CONFIG_SYS_FLASH_BASE			PHYS_FLASH_1
 #define CONFIG_SYS_MAX_FLASH_SECT		128
+#define CONFIG_SYS_FLASH_CFI_WIDTH		FLASH_CFI_16BIT
 
 #if defined(CONFIG_CMD_USB)
 #define CONFIG_USB_OHCI_NEW			1
@@ -230,4 +247,4 @@
 	"flashboot=run ramargs;bootm 10040000\0"			\
 	"netboot=run ramargs;tftpboot 21000000 cpuat91/uImage;"		\
 		"bootm 21000000\0"
-#endif	/* __CONFIG_H */
+#endif	/* _CONFIG_CPUAT91_H */
-- 
1.6.3.3