diff options
| author | Neil Armstrong <narmstrong@baylibre.com> | 2017-10-18 10:02:12 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-11-17 07:44:13 -0500 |
| commit | ae0d82fc64be74bdf897f8e751ace1f8d06ab6f8 (patch) | |
| tree | 7b42bcbb00ab091bdfd8456d3aef35101d31abfe /board/amlogic/p212 | |
| parent | ea990816fe96c86d3acb9aaa38776c10de2fb4b0 (diff) | |
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>
Diffstat (limited to 'board/amlogic/p212')
| -rw-r--r-- | board/amlogic/p212/p212.c | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/board/amlogic/p212/p212.c b/board/amlogic/p212/p212.c index 1eeb7f26d8..ece8096c5c 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; } |