70 lines
1.9 KiB
Diff
70 lines
1.9 KiB
Diff
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From 63acb257c32bd86abbad5abcc002d6c78b72f0ab Mon Sep 17 00:00:00 2001
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From: Anji J <anji.jagarlmudi@freescale.com>
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Date: Mon, 16 May 2016 20:21:38 +0530
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Subject: [PATCH 42/93] DNCPE-138 Rest external PHYs
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Need to reset external PHYs through IO expander for proper function.
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Signed-off-by: Anjaneyulu Jagarlmudi <anji.jagarlmudi@nxp.com>>
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Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
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---
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board/freescale/ls1012ardb/eth.c | 14 ++++++++++++++
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include/configs/ls1012ardb.h | 9 +++++++++
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2 files changed, 23 insertions(+)
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diff --git a/board/freescale/ls1012ardb/eth.c b/board/freescale/ls1012ardb/eth.c
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index 29830e8..24fdd83 100644
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--- a/board/freescale/ls1012ardb/eth.c
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+++ b/board/freescale/ls1012ardb/eth.c
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@@ -20,6 +20,20 @@
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#define DEFAULT_PFE_MDIO_NAME "PFE_MDIO"
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+
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+void reset_phy(void)
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+{
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+
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+ /*Through reset IO expander reset both RGMII and SGMII PHYs */
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+ i2c_reg_write(CONFIG_SYS_I2C_RESET_IO_EXPANDER, 6, __PHY_MASK);
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+ i2c_reg_write(CONFIG_SYS_I2C_RESET_IO_EXPANDER, 2, __PHY_ETH2_MASK);
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+ mdelay(10);
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+ i2c_reg_write(CONFIG_SYS_I2C_RESET_IO_EXPANDER, 2, __PHY_ETH1_MASK);
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+ mdelay(10);
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+ i2c_reg_write(CONFIG_SYS_I2C_RESET_IO_EXPANDER, 2, 0xFF);
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+ mdelay(50);
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+}
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+
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int board_eth_init(bd_t *bis)
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{
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#ifdef CONFIG_FSL_PPFE
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diff --git a/include/configs/ls1012ardb.h b/include/configs/ls1012ardb.h
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index 1b72bf1..23722e0 100644
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--- a/include/configs/ls1012ardb.h
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+++ b/include/configs/ls1012ardb.h
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@@ -24,6 +24,7 @@
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#define EMAC2_PHY_ADDR 0x1
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#define CONFIG_PHYLIB
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#define CONFIG_PHY_REALTEK
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+#define CONFIG_RESET_PHY_R
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#endif
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/*
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@@ -128,6 +129,14 @@
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#define __SW_REV_A 0xF8
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#define __SW_REV_B 0xF0
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+/*
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+ *I2C RESET expander
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+ */
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+#define CONFIG_SYS_I2C_RESET_IO_EXPANDER 0x25
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+#define __PHY_MASK 0xF9
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+#define __PHY_ETH2_MASK 0xFB
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+#define __PHY_ETH1_MASK 0xFD
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+
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#define CONFIG_CMD_MEMINFO
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#define CONFIG_CMD_MEMTEST
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#define CONFIG_SYS_MEMTEST_START 0x80000000
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--
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1.7.9.5
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