On 17/05/2014 12:01 AM, Hans de Goede wrote:
Hi,
On 05/16/2014 01:32 PM, Jonathan Liu wrote:
This allows accessing the EEPROM on the Olimex A20-OLinuXino-MICRO
using the i2c command.
Signed-off-by: Jonathan Liu <[email protected]>
p.s.
I don't know what you want this for, but if it is for the purpose of
getting fixed MAC addresses for the NIC, please consider implementing
this: https://github.com/linux-sunxi/linux-sunxi/commit/e7d46d2c
Instead (I've this on my todo for u-boot, so that the kernel and u-boot
behave the same).
This way you will not only help getting a fixed MAC address on the
A20-OLinuXino-MICRO, but everywhere.
Thanks,
Hans
setenv macaddr "02:"
setexpr.l sid *0x01c23800
setexpr c \${sid} / 10; setexpr c \${c} % 10; setenv macaddr
"\${macaddr}\${c}"
setexpr c \${sid} % 10; setenv macaddr "\${macaddr}\${c}"
setexpr.l sid *0x01c2380c
setexpr c \${sid} / 10000000; setenv macaddr "\${macaddr}:\${c}"
setexpr c \${sid} / 1000000; setexpr c \${c} % 10; setenv macaddr
"\${macaddr}\${c}"
setexpr c \${sid} / 100000; setexpr c \${c} % 10; setenv macaddr
"\${macaddr}:\${c}"
setexpr c \${sid} / 10000; setexpr c \${c} % 10; setenv macaddr
"\${macaddr}\${c}"
setexpr c \${sid} / 1000; setexpr c \${c} % 10; setenv macaddr
"\${macaddr}:\${c}"
setexpr c \${sid} / 100; setexpr c \${c} % 10; setenv macaddr
"\${macaddr}\${c}"
setexpr c \${sid} / 10; setexpr c \${c} % 10; setenv macaddr
"\${macaddr}:\${c}"
setexpr c \${sid} % 10; setenv macaddr "\${macaddr}\${c}"
setenv ethaddr "\${macaddr}"
Regards,
Jonathan
---
arch/arm/include/asm/arch-sunxi/gpio.h | 2 ++
arch/arm/include/asm/arch-sunxi/i2c.h | 4 ++++
board/sunxi/board.c | 6 ++++++
include/configs/sunxi-common.h | 4 ++++
4 files changed, 16 insertions(+)
diff --git a/arch/arm/include/asm/arch-sunxi/gpio.h
b/arch/arm/include/asm/arch-sunxi/gpio.h
index 46a111e..7a866b4 100644
--- a/arch/arm/include/asm/arch-sunxi/gpio.h
+++ b/arch/arm/include/asm/arch-sunxi/gpio.h
@@ -123,6 +123,8 @@ enum sunxi_gpio_number {
#define SUN7I_GPA0_GMAC 5
#define SUNXI_GPB0_TWI0 2
+#define SUNXI_GPB0_TWI1 2
+#define SUNXI_GPB0_TWI2 2
#define SUN4I_GPB22_UART0_TX 2
#define SUN4I_GPB23_UART0_RX 2
diff --git a/arch/arm/include/asm/arch-sunxi/i2c.h
b/arch/arm/include/asm/arch-sunxi/i2c.h
index dc5406b..d1708d1 100644
--- a/arch/arm/include/asm/arch-sunxi/i2c.h
+++ b/arch/arm/include/asm/arch-sunxi/i2c.h
@@ -8,7 +8,11 @@
#include <asm/arch/cpu.h>
+#ifdef CONFIG_SPL_BUILD
#define CONFIG_I2C_MVTWSI_BASE SUNXI_TWI0_BASE
+#else
+#define CONFIG_I2C_MVTWSI_BASE SUNXI_TWI1_BASE
+#endif
/* This is abp0-clk on sun4i/5i/7i / abp1-clk on sun6i/sun8i which is 24MHz */
#define CONFIG_SYS_TCLK 24000000
diff --git a/board/sunxi/board.c b/board/sunxi/board.c
index 6c362a3..c9035ba 100644
--- a/board/sunxi/board.c
+++ b/board/sunxi/board.c
@@ -129,9 +129,15 @@ int board_mmc_init(bd_t *bis)
void i2c_init_board(void)
{
+#ifdef CONFIG_SPL_BUILD
sunxi_gpio_set_cfgpin(SUNXI_GPB(0), SUNXI_GPB0_TWI0);
sunxi_gpio_set_cfgpin(SUNXI_GPB(1), SUNXI_GPB0_TWI0);
clock_twi_onoff(0, 1);
+#else
+ sunxi_gpio_set_cfgpin(SUNXI_GPB(18), SUNXI_GPB0_TWI1);
+ sunxi_gpio_set_cfgpin(SUNXI_GPB(19), SUNXI_GPB0_TWI1);
+ clock_twi_onoff(1, 1);
+#endif
}
#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_SUN6I) || defined(CONFIG_SUN8I)
diff --git a/include/configs/sunxi-common.h b/include/configs/sunxi-common.h
index e11c4ee..19ae9c9 100644
--- a/include/configs/sunxi-common.h
+++ b/include/configs/sunxi-common.h
@@ -320,7 +320,11 @@
/* No CONFIG_SYS_I2C as we use the non converted mvtwsi driver */
#define CONFIG_HARD_I2C
#define CONFIG_SYS_I2C_SUNXI
+#ifdef CONFIG_SPL_BUILD
#define CONFIG_SYS_I2C_SPEED 400000
+#else
+#define CONFIG_SYS_I2C_SPEED 100000
+#endif
#define CONFIG_SYS_I2C_SLAVE 0x7f
#define CONFIG_CMD_I2C
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