- Feb 05, 2019
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Ye Li authored
When doing port reset, the PR bit of PORTSC1 will be automatically cleared by our IP, but standard EHCI needs explicit clear by software. The EHCI-HCD driver follow the EHCI specification, so after 50ms wait, it clear the PR bit by writting to the PORTSC1 register with value loaded before setting PR. This sequence is ok for our IP when the delay time is exact. But when the timer is slower, some bits like PE, PSPD have been set by controller automatically after the PR is automatically cleared. So the writing to the PORTSC1 will overwrite these bits set by controller. And eventually the driver gets wrong status. We implement the powerup_fixup operation which delays 50ms and will check the PR until it is cleared by controller. And will update the reg value which is written to PORTSC register by EHCI-HCD driver. This is much safer than depending on the delay time to be accurate and aligining with controller's behaiver. Signed-off-by:Ye Li <ye.li@nxp.com> (cherry picked from commit 8dfdf83abaff44efb487f801cd1757a729d427c5)
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Ye Li authored
The ULP has two USB controllers. These two controllers have similar NC registers layout as i.MX7D. But OTG0 uses UTMI PHY simliar as i.MX6, not the integrated PHY on i.MX7D. The OTG1 needs off-chip HSIC PHY or ULPI PHY to work. This patch only supports OTG0 with UTMI PHY. Signed-off-by: -
Ye Li authored
Add the fuse checking in drivers, when the module is disabled in fuse, the driver will not work. Changed drivers: BEE, GPMI, APBH-DMA, ESDHC, FEC, QSPI, ECSPI, I2C, USB-EHCI, GIS, LCDIF. Signed-off-by: -
Fugang Duan authored
From i2c spec, if device pull down the SDA line that causes i2c bus dead, host can send out 9 clock to let device release SDA. But for some special device like pfuze100, it pull down SDA line and the solution cannot take effort. The patch just add NACK and STOP signal after 8 dummy clock, and pmic can release SDA line after the recovery. Test case catch 375 times of i2c hang, and all are recovered. Signed-off-by:
Fugang Duan <B38611@freescale.com> (cherry picked from commit 53118db42d201d36ca9067b4bb0e2702399e100b) Signed-off-by:
Peng Fan <Peng.Fan@freescale.com> (cherry picked from commit b8dcb812401026cb2189b24a4f6058830151c85a) (cherry picked from commit c5a44a2a0b2218221cb12645b10f0b34ecc6f79b)
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Troy Kisky authored
Signed-off-by:Troy Kisky <troy.kisky@boundarydevices.com>
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