[U-Boot] [PATCH u-boot 3/3] arm: amlogic: p212: Add support for Ethernet with Internal PHY

Neil Armstrong
2017-10-18T08:02:12Z

This patch adds support for the Internal RMII Ethernet PHY on the
Amlogic P212 Reference Board.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
---
board/amlogic/p212/p212.c | 39 ++++++++++++++++++++++++++++++++++++++-
configs/p212_defconfig | 4 ++++
include/configs/p212.h | 2 ++
3 files changed, 44 insertions(+), 1 deletion(-)

diff --git a/board/amlogic/p212/p212.c b/board/amlogic/p212/p212.c
index 1eeb7f2..ece8096 100644
--- a/board/amlogic/p212/p212.c
+++ b/board/amlogic/p212/p212.c
@@ -9,6 +9,13 @@
#include <dm.h>
#include <asm/io.h>
#include <asm/arch/gxbb.h>
+#include <asm/arch/sm.h>
+#include <phy.h>
+
+#define EFUSE_SN_OFFSET 20
+#define EFUSE_SN_SIZE 16
+#define EFUSE_MAC_OFFSET 52
+#define EFUSE_MAC_SIZE 6

int board_init(void)
{
@@ -17,5 +24,35 @@ int board_init(void)

int misc_init_r(void)
{
- return 0;
+ u8 mac_addr[EFUSE_MAC_SIZE];
+ char serial[EFUSE_SN_SIZE];
+ ssize_t len;
+
+ /* Set RMII mode */
+ out_le32(GXBB_ETH_REG_0, GXBB_ETH_REG_0_INVERT_RMII_CLK |
+ GXBB_ETH_REG_0_CLK_EN);
+
+ /* Use Internal PHY */
+ out_le32(GXBB_ETH_REG_2, 0x10110181);
+ out_le32(GXBB_ETH_REG_3, 0xe40908ff);
+
+ /* Enable power and clock gate */
+ setbits_le32(GXBB_GCLK_MPEG_1, GXBB_GCLK_MPEG_1_ETH);
+ clrbits_le32(GXBB_MEM_PD_REG_0, GXBB_MEM_PD_REG_0_ETH_MASK);
+
+ if (!eth_env_get_enetaddr("ethaddr", mac_addr)) {
+ len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
+ mac_addr, EFUSE_MAC_SIZE);
+ if (len == EFUSE_MAC_SIZE && is_valid_ethaddr(mac_addr))
+ eth_env_set_enetaddr("ethaddr", mac_addr);
+ }
+
+ if (!env_get("serial#")) {
+ len = meson_sm_read_efuse(EFUSE_SN_OFFSET, serial,
+ EFUSE_SN_SIZE);
+ if (len == EFUSE_SN_SIZE)
+ env_set("serial#", serial);
+ }
+
+ return 0;
}
diff --git a/configs/p212_defconfig b/configs/p212_defconfig
index 3c57621..d4b5349 100644
--- a/configs/p212_defconfig
+++ b/configs/p212_defconfig
@@ -20,6 +20,10 @@ CONFIG_OF_CONTROL=y
CONFIG_DM_GPIO=y
CONFIG_DM_MMC=y
CONFIG_MMC_MESON_GX=y
+CONFIG_DM_ETH=y
+CONFIG_ETH_DESIGNWARE=y
+CONFIG_PHY_MESON_GXL=y
+CONFIG_NET_RANDOM_ETHADDR=y
CONFIG_PINCTRL=y
CONFIG_PINCTRL_MESON_GXL=y
CONFIG_DEBUG_UART_MESON=y
diff --git a/include/configs/p212.h b/include/configs/p212.h
index 0477384..793b556 100644
--- a/include/configs/p212.h
+++ b/include/configs/p212.h
@@ -12,6 +12,8 @@

#define CONFIG_MISC_INIT_R

+#define CONFIG_PHY_ADDR 8
+
/* Serial setup */
#define CONFIG_CONS_INDEX 0

--
2.7.4