From: Zhuo Wang <zhuo.wang@amlogic.com>
Date: Fri, 28 Jun 2019 05:04:57 +0000 (+0800)
Subject: ethernet: g12b/A exphy,change default param [1/1]
X-Git-Tag: khadas-vims-v0.9.6-release~297
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f8a8986b2df34e136bffbece4e1f01c5d9f96983;p=platform%2Fkernel%2Flinux-amlogic.git

ethernet: g12b/A exphy,change default param [1/1]

PD#SWPL-10391

Problem:
g12b revA and revB need one code for two parameter

Solution:
dts set g12b revB parameter
read chipversion,if g12b revA, change the parameter by default value

Verify:
verify on g12b w200 board,revA and revB

Change-Id: I9cc4cd6c370207dce22dd0c7df51a6c71397e235
Signed-off-by: Zhuo Wang <zhuo.wang@amlogic.com>
---

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-meson.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-meson.c
index 3fe1544..4e5979f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-meson.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-meson.c
@@ -24,6 +24,7 @@
 #include <linux/gpio/consumer.h>
 #include "dwmac1000.h"
 #include "dwmac_dma.h"
+#include <linux/amlogic/cpu_version.h>
 #endif
 #include "stmmac_platform.h"
 #include <linux/amlogic/cpu_version.h>
@@ -381,6 +382,13 @@ static void __iomem *g12a_network_interface_setup(struct platform_device *pdev)
 			pr_debug("set exphy tx delay\n");
 		if (of_property_read_u32(np, "rx_delay", &external_rx_delay))
 			pr_debug("set exphy rx delay\n");
+		if (is_meson_g12b_cpu()) {
+			if (is_meson_rev_a()) {
+				external_rx_delay = 0;
+				external_tx_delay = 0;
+				writel(0x1621, REG_ETH_reg0_addr);
+			}
+		}
 		/* only exphy support wol since g12a*/
 		/*we enable/disable wol with item in dts with "wol=<1>"*/
 		if (of_property_read_u32(np, "wol",
@@ -399,6 +407,12 @@ static void __iomem *g12a_network_interface_setup(struct platform_device *pdev)
 			writel(cali_val, REG_ETH_reg0_addr +
 					REG_ETH_REG1_OFFSET);
 
+		if (is_meson_g12b_cpu()) {
+			if (is_meson_rev_a()) {
+				writel(0x10000, REG_ETH_reg0_addr +
+					REG_ETH_REG1_OFFSET);
+			}
+		}
 		pin_ctl = devm_pinctrl_get_select
 			(&pdev->dev, "external_eth_pins");
 		return REG_ETH_reg0_addr;