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ramips: mt7620: add EPHY base mdio address changing possibility

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In some boards is requred to change the ephy mdio base address.

This patch add of property "mediatek,ephy-base-address" in gsw
part, which allows to change ephy base address.

Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
[fixed indentation in header file]
Signed-off-by: Petr Štetiar <ynezz@true.cz>
This commit is contained in:
Pawel Dembicki 2018-10-29 20:31:25 +00:00 committed by Petr Štetiar
parent c02a9a2514
commit 391df37829
2 changed files with 62 additions and 46 deletions
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107
target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/gsw_mt7620.c
View File

@ -116,73 +116,82 @@ static void mt7620_hw_init(struct mt7620_gsw *gsw, int mdio_mode)
mt7530_mdio_w32(gsw, 0x7a78, 0x855);
} else {
if (gsw->ephy_base) {
/* set phy base addr to ephy_base */
mtk_switch_w32(gsw, mtk_switch_r32(gsw, GSW_REG_GPC1) |
(gsw->ephy_base << 16),
GSW_REG_GPC1);
fe_reset(BIT(24)); /* Resets the Ethernet PHY block. */
}
/* global page 4 */
_mt7620_mii_write(gsw, 1, 31, 0x4000);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 31, 0x4000);
_mt7620_mii_write(gsw, 1, 17, 0x7444);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 17, 0x7444);
if (is_BGA)
_mt7620_mii_write(gsw, 1, 19, 0x0114);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 19, 0x0114);
else
_mt7620_mii_write(gsw, 1, 19, 0x0117);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 19, 0x0117);
_mt7620_mii_write(gsw, 1, 22, 0x10cf);
_mt7620_mii_write(gsw, 1, 25, 0x6212);
_mt7620_mii_write(gsw, 1, 26, 0x0777);
_mt7620_mii_write(gsw, 1, 29, 0x4000);
_mt7620_mii_write(gsw, 1, 28, 0xc077);
_mt7620_mii_write(gsw, 1, 24, 0x0000);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 22, 0x10cf);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 25, 0x6212);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 26, 0x0777);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 29, 0x4000);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 28, 0xc077);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 24, 0x0000);
/* global page 3 */
_mt7620_mii_write(gsw, 1, 31, 0x3000);
_mt7620_mii_write(gsw, 1, 17, 0x4838);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 31, 0x3000);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 17, 0x4838);
/* global page 2 */
_mt7620_mii_write(gsw, 1, 31, 0x2000);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 31, 0x2000);
if (is_BGA) {
_mt7620_mii_write(gsw, 1, 21, 0x0515);
_mt7620_mii_write(gsw, 1, 22, 0x0053);
_mt7620_mii_write(gsw, 1, 23, 0x00bf);
_mt7620_mii_write(gsw, 1, 24, 0x0aaf);
_mt7620_mii_write(gsw, 1, 25, 0x0fad);
_mt7620_mii_write(gsw, 1, 26, 0x0fc1);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 21, 0x0515);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 22, 0x0053);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 23, 0x00bf);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 24, 0x0aaf);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 25, 0x0fad);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 26, 0x0fc1);
} else {
_mt7620_mii_write(gsw, 1, 21, 0x0517);
_mt7620_mii_write(gsw, 1, 22, 0x0fd2);
_mt7620_mii_write(gsw, 1, 23, 0x00bf);
_mt7620_mii_write(gsw, 1, 24, 0x0aab);
_mt7620_mii_write(gsw, 1, 25, 0x00ae);
_mt7620_mii_write(gsw, 1, 26, 0x0fff);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 21, 0x0517);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 22, 0x0fd2);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 23, 0x00bf);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 24, 0x0aab);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 25, 0x00ae);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 26, 0x0fff);
}
/* global page 1 */
_mt7620_mii_write(gsw, 1, 31, 0x1000);
_mt7620_mii_write(gsw, 1, 17, 0xe7f8);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 31, 0x1000);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 17, 0xe7f8);
/* turn on all PHYs */
for (i = 0; i <= 4; i++) {
val = _mt7620_mii_read(gsw, i, 0);
val = _mt7620_mii_read(gsw, gsw->ephy_base + i, 0);
val &= ~BIT(11);
_mt7620_mii_write(gsw, i, 0, val);
_mt7620_mii_write(gsw, gsw->ephy_base + i, 0, val);
}
}
/* global page 0 */
_mt7620_mii_write(gsw, 1, 31, 0x8000);
_mt7620_mii_write(gsw, 0, 30, 0xa000);
_mt7620_mii_write(gsw, 1, 30, 0xa000);
_mt7620_mii_write(gsw, 2, 30, 0xa000);
_mt7620_mii_write(gsw, 3, 30, 0xa000);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 31, 0x8000);
_mt7620_mii_write(gsw, gsw->ephy_base + 0, 30, 0xa000);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 30, 0xa000);
_mt7620_mii_write(gsw, gsw->ephy_base + 2, 30, 0xa000);
_mt7620_mii_write(gsw, gsw->ephy_base + 3, 30, 0xa000);
_mt7620_mii_write(gsw, 0, 4, 0x05e1);
_mt7620_mii_write(gsw, 1, 4, 0x05e1);
_mt7620_mii_write(gsw, 2, 4, 0x05e1);
_mt7620_mii_write(gsw, 3, 4, 0x05e1);
_mt7620_mii_write(gsw, gsw->ephy_base + 0, 4, 0x05e1);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 4, 0x05e1);
_mt7620_mii_write(gsw, gsw->ephy_base + 2, 4, 0x05e1);
_mt7620_mii_write(gsw, gsw->ephy_base + 3, 4, 0x05e1);
/* global page 2 */
_mt7620_mii_write(gsw, 1, 31, 0xa000);
_mt7620_mii_write(gsw, 0, 16, 0x1111);
_mt7620_mii_write(gsw, 1, 16, 0x1010);
_mt7620_mii_write(gsw, 2, 16, 0x1515);
_mt7620_mii_write(gsw, 3, 16, 0x0f0f);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 31, 0xa000);
_mt7620_mii_write(gsw, gsw->ephy_base + 0, 16, 0x1111);
_mt7620_mii_write(gsw, gsw->ephy_base + 1, 16, 0x1010);
_mt7620_mii_write(gsw, gsw->ephy_base + 2, 16, 0x1515);
_mt7620_mii_write(gsw, gsw->ephy_base + 3, 16, 0x0f0f);
/* CPU Port6 Force Link 1G, FC ON */
mtk_switch_w32(gsw, 0x5e33b, GSW_REG_PORT_PMCR(6));
@ -196,9 +205,9 @@ static void mt7620_hw_init(struct mt7620_gsw *gsw, int mdio_mode)
val |= 3 << 14;
rt_sysc_w32(val, SYSC_REG_CFG1);
_mt7620_mii_write(gsw, 4, 30, 0xa000);
_mt7620_mii_write(gsw, 4, 4, 0x05e1);
_mt7620_mii_write(gsw, 4, 16, 0x1313);
_mt7620_mii_write(gsw, gsw->ephy_base + 4, 30, 0xa000);
_mt7620_mii_write(gsw, gsw->ephy_base + 4, 4, 0x05e1);
_mt7620_mii_write(gsw, gsw->ephy_base + 4, 16, 0x1313);
pr_info("gsw: setting port4 to ephy mode\n");
} else if (!mdio_mode) {
u32 val = rt_sysc_r32(SYSC_REG_CFG1);
@ -247,6 +256,7 @@ static int mt7620_gsw_probe(struct platform_device *pdev)
const char *port4 = NULL;
struct mt7620_gsw *gsw;
struct device_node *np = pdev->dev.of_node;
u16 val;
gsw = devm_kzalloc(&pdev->dev, sizeof(struct mt7620_gsw), GFP_KERNEL);
if (!gsw)
@ -266,6 +276,11 @@ static int mt7620_gsw_probe(struct platform_device *pdev)
else
gsw->port4 = PORT4_EPHY;
if (of_property_read_u16(np, "mediatek,ephy-base-address", &val) == 0)
gsw->ephy_base = val;
else
gsw->ephy_base = 0;
gsw->irq = platform_get_irq(pdev, 0);
platform_set_drvdata(pdev, gsw);

1
target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/gsw_mt7620.h
View File

@ -103,6 +103,7 @@ struct mt7620_gsw {
int irq;
int port4;
unsigned long int autopoll;
u16 ephy_base;
};
void mtk_switch_w32(struct mt7620_gsw *gsw, u32 val, unsigned reg);