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phy: phy-mtk-tphy: support new hardware version 

The PHYA arch is updated, and doesn't support slew rate calibrate
anymore on 7nm or advanced process, add a new version number to
support it.
Note: the FreqMeter bank is not used but reserved.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1627028562-23584-2-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Chunfeng Yun 2021-07-23 16:22:41 +08:00 committed by Vinod Koul
parent c52c90dbcb
commit 27974e6208
1 changed files with 29 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
drivers/phy/mediatek/phy-mtk-tphy.c
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@ -27,7 +27,8 @@
#define SSUSB_SIFSLV_V1_U3PHYD 0x000
#define SSUSB_SIFSLV_V1_U3PHYA 0x200
/* version V2 sub-banks offset base address */
/* version V2/V3 sub-banks offset base address */
/* V3: U2FREQ is not used anymore, but reserved */
/* u2 phy banks */
#define SSUSB_SIFSLV_V2_MISC 0x000
#define SSUSB_SIFSLV_V2_U2FREQ 0x100
@ -270,6 +271,7 @@
enum mtk_phy_version {
MTK_PHY_V1 = 1,
MTK_PHY_V2,
MTK_PHY_V3,
};
struct mtk_phy_pdata {
@ -330,6 +332,10 @@ static void hs_slew_rate_calibrate(struct mtk_tphy *tphy,
int fm_out;
u32 tmp;
/* HW V3 doesn't support slew rate cal anymore */
if (tphy->pdata->version == MTK_PHY_V3)
return;
/* use force value */
if (instance->eye_src)
return;
@ -878,7 +884,7 @@ static void u2_phy_props_set(struct mtk_tphy *tphy,
writel(tmp, com + U3P_U2PHYBC12C);
}
if (instance->eye_src) {
if (tphy->pdata->version < MTK_PHY_V3 && instance->eye_src) {
tmp = readl(com + U3P_USBPHYACR5);
tmp &= ~PA5_RG_U2_HSTX_SRCTRL;
tmp |= PA5_RG_U2_HSTX_SRCTRL_VAL(instance->eye_src);
@ -1042,11 +1048,15 @@ static struct phy *mtk_phy_xlate(struct device *dev,
return ERR_PTR(-EINVAL);
}
if (tphy->pdata->version == MTK_PHY_V1) {
switch (tphy->pdata->version) {
case MTK_PHY_V1:
phy_v1_banks_init(tphy, instance);
} else if (tphy->pdata->version == MTK_PHY_V2) {
break;
case MTK_PHY_V2:
case MTK_PHY_V3:
phy_v2_banks_init(tphy, instance);
} else {
break;
default:
dev_err(dev, "phy version is not supported\n");
return ERR_PTR(-EINVAL);
}
@ -1075,6 +1085,10 @@ static const struct mtk_phy_pdata tphy_v2_pdata = {
.version = MTK_PHY_V2,
};
static const struct mtk_phy_pdata tphy_v3_pdata = {
.version = MTK_PHY_V3,
};
static const struct mtk_phy_pdata mt8173_pdata = {
.avoid_rx_sen_degradation = true,
.version = MTK_PHY_V1,
@ -1086,6 +1100,7 @@ static const struct of_device_id mtk_tphy_id_table[] = {
{ .compatible = "mediatek,mt8173-u3phy", .data = &mt8173_pdata },
{ .compatible = "mediatek,generic-tphy-v1", .data = &tphy_v1_pdata },
{ .compatible = "mediatek,generic-tphy-v2", .data = &tphy_v2_pdata },
{ .compatible = "mediatek,generic-tphy-v3", .data = &tphy_v3_pdata },
{ },
};
MODULE_DEVICE_TABLE(of, mtk_tphy_id_table);
@ -1129,12 +1144,15 @@ static int mtk_tphy_probe(struct platform_device *pdev)
}
}
tphy->src_ref_clk = U3P_REF_CLK;
tphy->src_coef = U3P_SLEW_RATE_COEF;
/* update parameters of slew rate calibrate if exist */
device_property_read_u32(dev, "mediatek,src-ref-clk-mhz",
&tphy->src_ref_clk);
device_property_read_u32(dev, "mediatek,src-coef", &tphy->src_coef);
if (tphy->pdata->version < MTK_PHY_V3) {
tphy->src_ref_clk = U3P_REF_CLK;
tphy->src_coef = U3P_SLEW_RATE_COEF;
/* update parameters of slew rate calibrate if exist */
device_property_read_u32(dev, "mediatek,src-ref-clk-mhz",
&tphy->src_ref_clk);
device_property_read_u32(dev, "mediatek,src-coef",
&tphy->src_coef);
}
port = 0;
for_each_child_of_node(np, child_np) {