On Thu, Sep 26, 2013 at 05:29:47PM -0300, Fabio Estevam wrote: > Hi Russell, > > On Thu, Sep 26, 2013 at 4:51 PM, Russell King - ARM Linux > <linux@xxxxxxxxxxxxxxxx> wrote: > > Can someone please point me at the current documentation for the > > iMX6DL pinctrl bindings? > > Best reference is the mx6dl reference manual (chapter 37 - IOMUXC): > http://cache.freescale.com/files/32bit/doc/ref_manual/IMX6SDLRM.pdf > > > I mean the stuff which looks like this: > > > > #define MX6QDL_PAD_ENET_MDC__ESAI_TX5_RX0 0x1e8 0x5b8 0x858 0x2 0x0 > > Let me try to decode it: > > 0x1e8: Offset of IOMUXC_SW_MUX_CTL_PAD_ENET_MDC register > > 0x5b8: Offset of IOMUXC_SW_PAD_CTL_PAD_ENET_MDC register > > 0x2: This means that the MUX_MODE field selects the ESAI_TX5_RX0 function > in this pad > > 0x0: SELECT_INPUT not used for this pad Okay, that's relatively straight forward. > Let me know if you need help with the iomux settings for cubox-i. Yes please. :) Here's Rabeeh's preliminary patches against Freescale's 3.0.35 BSP 4.1.0 kernel: http://download.solid-run.com/pub/solidrun/c1/kernel/initial/ I think I've translated the bulk of them. I have a number of problems though. One of the things I'd like to sort out is the ethernet. Most of these convert straight: + MX6DL_PAD_ENET_MDIO__ENET_MDIO, + MX6DL_PAD_ENET_MDC__ENET_MDC, + IOMUX_PAD(0x0650, 0x0268, 5, 0x0000, 0, MX6DL_ENET_PAD_CTRL_PD), /* KEY_ROW4 reset signal */ + + MX6DL_PAD_DI0_PIN2__GPIO_4_18, /* Interrupt */ + /* RMII */ + IOMUX_PAD(0x05B4, 0x01E4, 1, 0x0828, 0, PAD_CTL_PKE | PAD_CTL_PUE | + PAD_CTL_PUS_100K_DOWN), /* MX6DL_PAD_ENET_CRS_DV__ENET_RX_EN */ + IOMUX_PAD(0x05C8, 0x01F8, 1, 0x0818, 0, PAD_CTL_PKE | PAD_CTL_PUE | + PAD_CTL_PUS_100K_DOWN), /* MX6DL_PAD_ENET_RXD0__ENET_RDATA_0 */ + IOMUX_PAD(0x05CC, 0x01FC, 1, 0x081C, 0, PAD_CTL_PKE | PAD_CTL_PUE | + PAD_CTL_PUS_100K_DOWN), /* MX6DL_PAD_ENET_RXD1__ENET_RDATA_1 */ + MX6DL_PAD_ENET_TXD0__ENET_TDATA_0, + MX6DL_PAD_ENET_TXD1__ENET_TDATA_1, + MX6DL_PAD_ENET_TX_EN__ENET_TX_EN, + MX6DL_PAD_GPIO_16__ENET_ANATOP_ETHERNET_REF_OUT, + MX6DL_PAD_RGMII_TXC__ENET_RGMII_TXC, + MX6DL_PAD_RGMII_TD0__ENET_RGMII_TD0, + MX6DL_PAD_RGMII_TD1__ENET_RGMII_TD1, + MX6DL_PAD_RGMII_TD2__ENET_RGMII_TD2, + MX6DL_PAD_RGMII_TD3__ENET_RGMII_TD3, + MX6DL_PAD_RGMII_TX_CTL__ENET_RGMII_TX_CTL, + MX6DL_PAD_ENET_REF_CLK__ENET_TX_CLK, + MX6DL_PAD_RGMII_RXC__ENET_RGMII_RXC, + IOMUX_PAD(0x0694, 0x02AC, 1, 0x0818, 1, MX6DL_ENET_PAD_CTRL_PD),/*RGMII RD0*/ + IOMUX_PAD(0x0698, 0x02B0, 1, 0x081C, 1, MX6DL_ENET_PAD_CTRL_PD),/*RGMII RD1*/ + /* In RGMII mode RD2 should be '1' to disable the PLL OFF mode */ + MX6DL_PAD_RGMII_RD2__ENET_RGMII_RD2, + MX6DL_PAD_RGMII_RD3__ENET_RGMII_RD3, + /* In RGMII mode RX_DV should be pulled down for reset strap */ + IOMUX_PAD(0x06A4, 0x02BC, 1, 0x0828, 1, MX6DL_ENET_PAD_CTRL_PD),/*RGMII RXCTL*/ The ones which don't are those IOMUX_PAD() ones - what I have so far for them (I'm still busy adding to the DT file for everything else) are (in order): MX6QDL_PAD_ENET_MDIO__ENET_MDIO MX6QDL_PAD_ENET_MDC__ENET_MDC MX6QDL_PAD_KEY_ROW4__GPIO4_IO15 -- ? MX6QDL_PAD_DI0_PIN2__GPIO4_IO18 /* RMII */ MX6QDL_PAD_ENET_CRS_DV__ENET_RX_EN ... extra stuff MX6QDL_PAD_ENET_RXD0__ENET_RX_DATA0 ... extra stuff MX6QDL_PAD_ENET_RXD1__ENET_RX_DATA1 ... extra stuff MX6QDL_PAD_ENET_TXD0__ENET_TX_DATA0 MX6QDL_PAD_ENET_TXD1__ENET_TX_DATA1 MX6QDL_PAD_ENET_TX_EN__ENET_TX_EN MX6QDL_PAD_GPIO_16__ENET_REF_CLK -- ? MX6QDL_PAD_RGMII_TXC__RGMII_TXC MX6QDL_PAD_RGMII_TD0__RGMII_TD0 MX6QDL_PAD_RGMII_TD1__RGMII_TD1 MX6QDL_PAD_RGMII_TD2__RGMII_TD2 MX6QDL_PAD_RGMII_TD3__RGMII_TD3 MX6QDL_PAD_RGMII_TX_CTL__RGMII_TX_CTL MX6QDL_PAD_ENET_REF_CLK__ENET_TX_CLK MX6QDL_PAD_RGMII_RXC__RGMII_RXC MX6QDL_PAD_RGMII_RD0__RGMII_RD0 ... extra stuff MX6QDL_PAD_RGMII_RD1__RGMII_RD1 ... extra stuff /* In RGMII mode RD2 should be '1' to disable the PLL OFF mode */ MX6QDL_PAD_RGMII_RD2__RGMII_RD2 MX6QDL_PAD_RGMII_RD3__RGMII_RD3 /* In RGMII mode RX_DV should be pulled down for reset strap */ MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL ... extra stuff If I have to customize any of these settings, how do I do that? Final question is - in imx6qdl.dtsi, I see for instance: MX6QDL_PAD_ENET_MDIO__ENET_MDIO 0x1b0b0 What does the final number refer to? Thanks. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
