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Merge "board: qca: arm: ipq5332: Fix to reduce the noise in High Speed TX Eye"

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Linux Build Service Account 2023-03-01 02:58:48 -08:00 • committed by Gerrit - the friendly Code Review server
commit 2a18527a0f
2 changed files with 27 additions and 0 deletions
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17
board/qca/arm/ipq5332/ipq5332.c
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@ -727,6 +727,23 @@ static void usb_init_hsphy(void __iomem *phybase, int ssphy)
writel(XCFG_COARSE_TUNE_NUM | XCFG_FINE_TUNE_NUM,
phybase + USB2PHY_USB_PHY_M31_XCFGI_11);
/* Adjust HSTX slew rate to 565 ps*/
/* Adjust PLL lock Time counter for release clock to 35uA */
/* Adjust Manual control ODT value to 38.02 Ohm */
writel(HSTX_SLEW_RATE_565PS | PLL_CHARGING_PUMP_CURRENT_35UA |
ODT_VALUE_38_02_OHM, phybase + USB2PHY_USB_PHY_M31_XCFGI_4);
/*
* Enable to always turn on USB 2.0 TX driver
* when system is in USB 2.0 HS mode
*/
writel(USB2_0_TX_ENABLE, phybase + USB2PHY_USB_PHY_M31_XCFGI_1);
/* Adjust Manual control ODT value to 45.02 Ohm */
/* Adjust HSTX Pre-emphasis level to 0.55mA */
writel(ODT_VALUE_45_02_OHM | HSTX_PRE_EMPHASIS_LEVEL_0_55MA,
phybase + USB2PHY_USB_PHY_M31_XCFGI_5);
udelay(10);
writel(0, phybase + USB_PHY_UTMI_CTRL5);

10
board/qca/arm/ipq5332/ipq5332.h
View file

@ -84,8 +84,18 @@ extern const add_node_t add_fdt_node[];
#define USB_PHY_HS_PHY_CTRL_COMMON0 0x54
#define USB_PHY_REFCLK_CTRL 0xA0
#define USB_PHY_HS_PHY_CTRL2 0x64
#define USB2PHY_USB_PHY_M31_XCFGI_1 0xBC
#define USB2PHY_USB_PHY_M31_XCFGI_4 0xC8
#define USB2PHY_USB_PHY_M31_XCFGI_5 0xCC
#define USB2PHY_USB_PHY_M31_XCFGI_11 0xE4
#define USB2_0_TX_ENABLE BIT(2)
#define HSTX_SLEW_RATE_565PS 3
#define PLL_CHARGING_PUMP_CURRENT_35UA (3 << 3)
#define ODT_VALUE_38_02_OHM (3 << 6)
#define ODT_VALUE_45_02_OHM BIT(2)
#define HSTX_PRE_EMPHASIS_LEVEL_0_55MA (1)
#define UTMI_PHY_OVERRIDE_EN BIT(1)
#define SLEEPM BIT(1)
#define POR_EN BIT(1)