Hi Marek,
-----Original Message----- From: Marek Vasut [mailto:marex@denx.de] Sent: Friday, July 24, 2015 4:44 AM To: Alonso Lazcano Adrian-B38018 Cc: u-boot@lists.denx.de; sbabic@denx.de; otavio@ossystems.com.br; Estevam Fabio-R49496; Li Frank-B20596; Garg Nitin-B37173 Subject: Re: [PATCH 02/15][v4] imx: usb: ehci-mx7 add usb driver for i.MX7D
On Thursday, July 23, 2015 at 09:25:17 PM, Adrian Alonso wrote:
Add support for usb driver for i.MX7D SoC
Signed-off-by: Adrian Alonso aalonso@freescale.com Signed-off-by: Ye.Li B37916@freescale.com Signed-off-by: Peng Fan Peng.Fan@freescale.com
So errr, why exactly can ehci-mx6 not be used here ? The code looks almost like a copy of ehci-mx6 with minor tweaks here and there.
Best regards, Marek Vasut
[Adrian] We can definitely have a single driver to support imx7 and imx6, but we mainly decide to have a driver for each SoC to try to make easier to maintain, there are so many variants of imx6 (Quad/Dual/Solo/SoloX/QuadPlus/UL) and imx7 (Dual/Solo); while there are several similarities in USB IP for iMX6 and iMX7, USB PHY Control and clock settings differ slightly making code harder to Understand and maintain in a single driver for imx7 and imx6.
Regards Adrian