arm: amlogic: p212: Add support for Ethernet with Internal PHY
This patch adds support for the Internal RMII Ethernet PHY on the
Amlogic P212 Reference Board.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
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 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;
}