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57 lines
1.8 KiB
Diff
57 lines
1.8 KiB
Diff
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From d9a52701f6677889cc3332ab7a888f35cd69cc76 Mon Sep 17 00:00:00 2001
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From: Weijie Gao <weijie.gao@mediatek.com>
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Date: Wed, 19 Jul 2023 17:16:59 +0800
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Subject: [PATCH 17/29] net: mediatek: optimize the switch reset delay wait
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time
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Not all switches requires 1 second delay after deasserting reset.
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MT7531 requires only maximum 200ms.
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This patch defines dedicated reset wait time for each switch chip, and will
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significantly improve the boot time for boards using MT7531.
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Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
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---
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drivers/net/mtk_eth.c | 7 +++++--
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1 file changed, 5 insertions(+), 2 deletions(-)
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--- a/drivers/net/mtk_eth.c
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+++ b/drivers/net/mtk_eth.c
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@@ -127,6 +127,7 @@ struct mtk_eth_priv {
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u32 mt753x_smi_addr;
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u32 mt753x_phy_base;
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u32 mt753x_pmcr;
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+ u32 mt753x_reset_wait_time;
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struct gpio_desc rst_gpio;
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int mcm;
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@@ -943,12 +944,12 @@ int mt753x_switch_init(struct mtk_eth_pr
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reset_assert(&priv->rst_mcm);
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udelay(1000);
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reset_deassert(&priv->rst_mcm);
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- mdelay(1000);
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+ mdelay(priv->mt753x_reset_wait_time);
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} else if (dm_gpio_is_valid(&priv->rst_gpio)) {
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dm_gpio_set_value(&priv->rst_gpio, 0);
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udelay(1000);
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dm_gpio_set_value(&priv->rst_gpio, 1);
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- mdelay(1000);
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+ mdelay(priv->mt753x_reset_wait_time);
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}
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ret = priv->switch_init(priv);
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@@ -1528,11 +1529,13 @@ static int mtk_eth_of_to_plat(struct ude
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priv->switch_init = mt7530_setup;
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priv->switch_mac_control = mt7530_mac_control;
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priv->mt753x_smi_addr = MT753X_DFL_SMI_ADDR;
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+ priv->mt753x_reset_wait_time = 1000;
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} else if (!strcmp(str, "mt7531")) {
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priv->sw = SW_MT7531;
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priv->switch_init = mt7531_setup;
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priv->switch_mac_control = mt7531_mac_control;
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priv->mt753x_smi_addr = MT753X_DFL_SMI_ADDR;
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+ priv->mt753x_reset_wait_time = 200;
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} else {
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printf("error: unsupported switch\n");
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return -EINVAL;
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