On Sun, Apr 3, 2016 at 2:18 AM, Beniamino Galvani b.galvani@gmail.com wrote:
Add initialization code for the Ethernet adapter on ODROID-C2 and enable the driver.
Signed-off-by: Beniamino Galvani b.galvani@gmail.com
arch/arm/include/asm/arch-meson/gxbb.h | 54 ++++++++++++++++++++++++++++++++++ board/hardkernel/odroid-c2/odroid-c2.c | 25 ++++++++++++++++ configs/odroid-c2_defconfig | 3 ++ include/configs/odroid-c2.h | 1 + 4 files changed, 83 insertions(+)
diff --git a/arch/arm/include/asm/arch-meson/gxbb.h b/arch/arm/include/asm/arch-meson/gxbb.h index 0eec270..59fae9f 100644 --- a/arch/arm/include/asm/arch-meson/gxbb.h +++ b/arch/arm/include/asm/arch-meson/gxbb.h @@ -7,4 +7,58 @@ #ifndef __GXBB_H__ #define __GXBB_H__
+#define GXBB_PERIPHS_BASE 0xc8834400 +#define GXBB_PERIPHS_ADDR(off) (GXBB_PERIPHS_BASE + ((off) << 2))
+#define GXBB_GPIO_0_EN GXBB_PERIPHS_ADDR(0x0c) +#define GXBB_GPIO_0_OUT GXBB_PERIPHS_ADDR(0x0d) +#define GXBB_GPIO_0_IN GXBB_PERIPHS_ADDR(0x0e) +#define GXBB_GPIO_1_EN GXBB_PERIPHS_ADDR(0x0f) +#define GXBB_GPIO_1_OUT GXBB_PERIPHS_ADDR(0x10) +#define GXBB_GPIO_1_IN GXBB_PERIPHS_ADDR(0x11) +#define GXBB_GPIO_2_EN GXBB_PERIPHS_ADDR(0x12) +#define GXBB_GPIO_2_OUT GXBB_PERIPHS_ADDR(0x13) +#define GXBB_GPIO_2_IN GXBB_PERIPHS_ADDR(0x14) +#define GXBB_GPIO_3_EN GXBB_PERIPHS_ADDR(0x15) +#define GXBB_GPIO_3_OUT GXBB_PERIPHS_ADDR(0x16) +#define GXBB_GPIO_3_IN GXBB_PERIPHS_ADDR(0x17) +#define GXBB_GPIO_4_EN GXBB_PERIPHS_ADDR(0x18) +#define GXBB_GPIO_4_OUT GXBB_PERIPHS_ADDR(0x19) +#define GXBB_GPIO_4_IN GXBB_PERIPHS_ADDR(0x1a) +#define GXBB_GPIO_5_EN GXBB_PERIPHS_ADDR(0x1b) +#define GXBB_GPIO_5_OUT GXBB_PERIPHS_ADDR(0x1c) +#define GXBB_GPIO_5_IN GXBB_PERIPHS_ADDR(0x1d) +#define GXBB_GPIO_6_EN GXBB_PERIPHS_ADDR(0x08) +#define GXBB_GPIO_6_OUT GXBB_PERIPHS_ADDR(0x09) +#define GXBB_GPIO_6_IN GXBB_PERIPHS_ADDR(0x0a)
+#define GXBB_PINMUX_0 GXBB_PERIPHS_ADDR(0x2c) +#define GXBB_PINMUX_1 GXBB_PERIPHS_ADDR(0x2d) +#define GXBB_PINMUX_2 GXBB_PERIPHS_ADDR(0x2e) +#define GXBB_PINMUX_3 GXBB_PERIPHS_ADDR(0x2f) +#define GXBB_PINMUX_4 GXBB_PERIPHS_ADDR(0x30) +#define GXBB_PINMUX_5 GXBB_PERIPHS_ADDR(0x31) +#define GXBB_PINMUX_6 GXBB_PERIPHS_ADDR(0x32) +#define GXBB_PINMUX_7 GXBB_PERIPHS_ADDR(0x33) +#define GXBB_PINMUX_8 GXBB_PERIPHS_ADDR(0x34) +#define GXBB_PINMUX_9 GXBB_PERIPHS_ADDR(0x35) +#define GXBB_PINMUX_10 GXBB_PERIPHS_ADDR(0x36) +#define GXBB_PINMUX_11 GXBB_PERIPHS_ADDR(0x37) +#define GXBB_PINMUX_12 GXBB_PERIPHS_ADDR(0x38)
+#define GXBB_ETH_REG_0 GXBB_PERIPHS_ADDR(0x50) +#define GXBB_ETH_REG_1 GXBB_PERIPHS_ADDR(0x51)
+#define GXBB_HIU_BASE 0xc883c000 +#define GXBB_HIU_ADDR(off) (GXBB_HIU_BASE + ((off) << 2))
+#define GXBB_MEM_PD_REG_0 GXBB_HIU_ADDR(0x40)
+/* Clock gates */ +#define GXBB_GCLK_MPEG_0 GXBB_HIU_ADDR(0x50) +#define GXBB_GCLK_MPEG_1 GXBB_HIU_ADDR(0x51) +#define GXBB_GCLK_MPEG_2 GXBB_HIU_ADDR(0x52) +#define GXBB_GCLK_MPEG_OTHER GXBB_HIU_ADDR(0x53) +#define GXBB_GCLK_MPEG_AO GXBB_HIU_ADDR(0x54)
#endif /* __GXBB_H__ */ diff --git a/board/hardkernel/odroid-c2/odroid-c2.c b/board/hardkernel/odroid-c2/odroid-c2.c index 6a1485f..2d82d11 100644 --- a/board/hardkernel/odroid-c2/odroid-c2.c +++ b/board/hardkernel/odroid-c2/odroid-c2.c @@ -5,3 +5,28 @@ */
#include <common.h> +#include <asm/io.h> +#include <asm/arch/gxbb.h>
+#ifdef CONFIG_MISC_INIT_R +int misc_init_r(void) +{
/* Select Ethernet function */setbits_le32(GXBB_PINMUX_6, 0x3fff);/* Set RGMII mode */setbits_le32(GXBB_ETH_REG_0, 0x1621);
It would be good to have constants for all these magic numbers.
/* Enable clocks */setbits_le32(GXBB_GCLK_MPEG_1, 1 << 3);
Use the BIT() macro for this type of thing. Probably use the BIT() macro in another named macro for the meaning of the magic bit.
clrbits_le32(GXBB_MEM_PD_REG_0, (1 << 3) | (1 << 2));/* Reset PHY on GPIOZ_14 */clrbits_le32(GXBB_GPIO_3_EN, 1 << 14);clrbits_le32(GXBB_GPIO_3_OUT, 1 << 14);udelay(100000);setbits_le32(GXBB_GPIO_3_OUT, 1 << 14);return 0;+} +#endif /* CONFIG_MISC_INIT_R */ diff --git a/configs/odroid-c2_defconfig b/configs/odroid-c2_defconfig index 069f02d..a771b20 100644 --- a/configs/odroid-c2_defconfig +++ b/configs/odroid-c2_defconfig @@ -11,6 +11,9 @@ CONFIG_DEFAULT_DEVICE_TREE="meson-gxbb-odroidc2" # CONFIG_CMD_SOURCE is not set # CONFIG_CMD_SETEXPR is not set CONFIG_OF_CONTROL=y +CONFIG_NET_RANDOM_ETHADDR=y +CONFIG_DM_ETH=y +CONFIG_ETH_DESIGNWARE=y CONFIG_DEBUG_UART=y CONFIG_DEBUG_UART_MESON=y CONFIG_DEBUG_UART_BASE=0xc81004c0 diff --git a/include/configs/odroid-c2.h b/include/configs/odroid-c2.h index 0e9ad1c..12bc086 100644 --- a/include/configs/odroid-c2.h +++ b/include/configs/odroid-c2.h @@ -19,6 +19,7 @@ #define CONFIG_SYS_MALLOC_LEN (32 << 20) #define CONFIG_SYS_CBSIZE 1024 #define CONFIG_DISPLAY_BOARDINFO +#define CONFIG_MISC_INIT_R
#define CONFIG_SYS_SDRAM_BASE 0
#define CONFIG_SYS_TEXT_BASE 0x01000000
2.7.3
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