[U-Boot] [PATCH 2/2] mx6sxsabresd: Add Ethernet support
From: Fabio Estevam fabio.estevam@freescale.com
mx6sxsabresd board has 2 FEC ports, each one connected to a AR8031.
Add support for one FEC port initially.
Signed-off-by: Fabio Estevam fabio.estevam@freescale.com --- FEC is not functional after this series.
There is still another patch for FEC that I will submit later that makes FEC functional on mx6solox, but it is orthogonal to this series.
arch/arm/include/asm/arch-mx6/crm_regs.h | 1 + arch/arm/include/asm/arch-mx6/iomux.h | 10 +++ board/freescale/mx6sxsabresd/mx6sxsabresd.c | 116 ++++++++++++++++++++++++++++ include/configs/mx6sxsabresd.h | 17 ++++ 4 files changed, 144 insertions(+)
diff --git a/arch/arm/include/asm/arch-mx6/crm_regs.h b/arch/arm/include/asm/arch-mx6/crm_regs.h index 9a7fb34..e67b5b9 100644 --- a/arch/arm/include/asm/arch-mx6/crm_regs.h +++ b/arch/arm/include/asm/arch-mx6/crm_regs.h @@ -981,6 +981,7 @@ struct mxc_ccm_reg { #define BM_ANADIG_PLL_ENET_RSVD1 0x7FE00000 #define BF_ANADIG_PLL_ENET_RSVD1(v) \ (((v) << 21) & BM_ANADIG_PLL_ENET_RSVD1) +#define BM_ANADIG_PLL_ENET_REF_25M_ENABLE 0x00200000 #define BM_ANADIG_PLL_ENET_ENABLE_SATA 0x00100000 #define BM_ANADIG_PLL_ENET_ENABLE_PCIE 0x00080000 #define BM_ANADIG_PLL_ENET_PFD_OFFSET_EN 0x00040000 diff --git a/arch/arm/include/asm/arch-mx6/iomux.h b/arch/arm/include/asm/arch-mx6/iomux.h index 6a4a632..f54db69 100644 --- a/arch/arm/include/asm/arch-mx6/iomux.h +++ b/arch/arm/include/asm/arch-mx6/iomux.h @@ -65,6 +65,16 @@ #define IOMUX_GPR1_FEC_MASK (IOMUX_GPR1_FEC_CLOCK_MUX1_SEL_MASK \ | IOMUX_GPR1_FEC_CLOCK_MUX2_SEL_MASK)
+#define IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK (0x1 << 17) +#define IOMUX_GPR1_FEC1_CLOCK_MUX2_SEL_MASK (0x1 << 13) +#define IOMUX_GPR1_FEC1_MASK (IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK \ + | IOMUX_GPR1_FEC1_CLOCK_MUX2_SEL_MASK) + +#define IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK (0x1 << 18) +#define IOMUX_GPR1_FEC2_CLOCK_MUX2_SEL_MASK (0x1 << 14) +#define IOMUX_GPR1_FEC2_MASK (IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK \ + | IOMUX_GPR1_FEC2_CLOCK_MUX2_SEL_MASK) + #define IOMUXC_GPR13_SATA_PHY_8_RXEQ_0P5DB (0<<24) #define IOMUXC_GPR13_SATA_PHY_8_RXEQ_1P0DB (1<<24) #define IOMUXC_GPR13_SATA_PHY_8_RXEQ_1P5DB (2<<24) diff --git a/board/freescale/mx6sxsabresd/mx6sxsabresd.c b/board/freescale/mx6sxsabresd/mx6sxsabresd.c index 6cd2b4a..5eaec1b 100644 --- a/board/freescale/mx6sxsabresd/mx6sxsabresd.c +++ b/board/freescale/mx6sxsabresd/mx6sxsabresd.c @@ -7,6 +7,7 @@ */
#include <asm/arch/clock.h> +#include <asm/arch/crm_regs.h> #include <asm/arch/iomux.h> #include <asm/arch/imx-regs.h> #include <asm/arch/mx6-pins.h> @@ -20,6 +21,8 @@ #include <fsl_esdhc.h> #include <mmc.h> #include <i2c.h> +#include <miiphy.h> +#include <netdev.h> #include <power/pmic.h> #include <power/pfuze100_pmic.h>
@@ -38,6 +41,21 @@ DECLARE_GLOBAL_DATA_PTR; PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ PAD_CTL_ODE)
+#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \ + PAD_CTL_SPEED_HIGH | \ + PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST) + +#define ENET_CLK_PAD_CTRL (PAD_CTL_SPEED_MED | \ + PAD_CTL_DSE_120ohm | PAD_CTL_SRE_FAST) + +#define ENET_RX_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ + PAD_CTL_SPEED_HIGH | PAD_CTL_SRE_FAST) + +#define I2C_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ + PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ + PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ + PAD_CTL_ODE) + int dram_init(void) { gd->ram_size = PHYS_SDRAM_SIZE; @@ -60,11 +78,83 @@ static iomux_v3_cfg_t const usdhc4_pads[] = { MX6_PAD_SD4_DATA7__GPIO6_IO_21 | MUX_PAD_CTRL(NO_PAD_CTRL), };
+static iomux_v3_cfg_t const fec1_pads[] = { + MX6_PAD_ENET1_MDC__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET1_MDIO__ENET1_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_RGMII1_RX_CTL__ENET1_RX_EN | MUX_PAD_CTRL(ENET_RX_PAD_CTRL), + MX6_PAD_RGMII1_RD0__ENET1_RX_DATA_0 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL), + MX6_PAD_RGMII1_RD1__ENET1_RX_DATA_1 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL), + MX6_PAD_RGMII1_RD2__ENET1_RX_DATA_2 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL), + MX6_PAD_RGMII1_RD3__ENET1_RX_DATA_3 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL), + MX6_PAD_RGMII1_RXC__ENET1_RX_CLK | MUX_PAD_CTRL(ENET_RX_PAD_CTRL), + MX6_PAD_RGMII1_TX_CTL__ENET1_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_RGMII1_TD0__ENET1_TX_DATA_0 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_RGMII1_TD1__ENET1_TX_DATA_1 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_RGMII1_TD2__ENET1_TX_DATA_2 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_RGMII1_TD3__ENET1_TX_DATA_3 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_RGMII1_TXC__ENET1_RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL), +}; + +static iomux_v3_cfg_t const peri_3v3_pads[] = { + MX6_PAD_QSPI1A_DATA0__GPIO4_IO_16 | MUX_PAD_CTRL(NO_PAD_CTRL), +}; + +static iomux_v3_cfg_t const phy_control_pads[] = { + /* 25MHz Ethernet PHY Clock */ + MX6_PAD_ENET2_RX_CLK__ENET2_REF_CLK_25M | MUX_PAD_CTRL(ENET_CLK_PAD_CTRL), + + /* ENET PHY Power */ + MX6_PAD_ENET2_COL__GPIO2_IO_6 | MUX_PAD_CTRL(NO_PAD_CTRL), + + /* AR8031 PHY Reset */ + MX6_PAD_ENET2_CRS__GPIO2_IO_7 | MUX_PAD_CTRL(NO_PAD_CTRL), +}; + static void setup_iomux_uart(void) { imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads)); }
+static int setup_fec(void) +{ + struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR; + struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR; + int ret; + int reg; + + /* Use 125MHz anatop loopback REF_CLK1 for ENET1 */ + clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK, 0); + + imx_iomux_v3_setup_multiple_pads(phy_control_pads, + ARRAY_SIZE(phy_control_pads)); + + /* Enable the ENET power, active low */ + gpio_direction_output(IMX_GPIO_NR(2, 6) , 0); + + /* Reset AR8031 PHY */ + gpio_direction_output(IMX_GPIO_NR(2, 7) , 0); + udelay(500); + gpio_set_value(IMX_GPIO_NR(2, 7), 1); + + reg = readl(&anatop->pll_enet); + reg |= BM_ANADIG_PLL_ENET_REF_25M_ENABLE; + writel(reg, &anatop->pll_enet); + + ret = enable_fec_anatop_clock(ENET_125MHz); + if (ret) + return ret; + + return 0; +} + +int board_eth_init(bd_t *bis) +{ + imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads)); + setup_fec(); + + return cpu_eth_init(bis); +} + #define PC MUX_PAD_CTRL(I2C_PAD_CTRL) /* I2C1 for PMIC */ struct i2c_pads_info i2c_pad_info1 = { @@ -131,11 +221,37 @@ static int pfuze_init(void) return 0; }
+int board_phy_config(struct phy_device *phydev) +{ + /* + * Enable 1.8V(SEL_1P5_1P8_POS_REG) on + * Phy control debug reg 0 + */ + phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f); + phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8); + + /* rgmii tx clock delay enable */ + phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05); + phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100); + + if (phydev->drv->config) + phydev->drv->config(phydev); + + return 0; +} + int board_early_init_f(void) { setup_iomux_uart(); setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
+ /* Enable PERI_3V3, which is used by SD2, ENET, LVDS, BT */ + imx_iomux_v3_setup_multiple_pads(peri_3v3_pads, + ARRAY_SIZE(peri_3v3_pads)); + + /* Active high for ncp692 */ + gpio_direction_output(IMX_GPIO_NR(4, 16) , 1); + return 0; }
diff --git a/include/configs/mx6sxsabresd.h b/include/configs/mx6sxsabresd.h index 7967b5d..1eda65e 100644 --- a/include/configs/mx6sxsabresd.h +++ b/include/configs/mx6sxsabresd.h @@ -181,6 +181,23 @@ #define CONFIG_POWER_PFUZE100 #define CONFIG_POWER_PFUZE100_I2C_ADDR 0x08
+/* Network */ +#define CONFIG_CMD_PING +#define CONFIG_CMD_DHCP +#define CONFIG_CMD_MII +#define CONFIG_CMD_NET +#define CONFIG_FEC_MXC +#define CONFIG_MII + +#define IMX_FEC_BASE ENET_BASE_ADDR +#define CONFIG_FEC_MXC_PHYADDR 0x1 + +#define CONFIG_FEC_XCV_TYPE RGMII +#define CONFIG_ETHPRIME "FEC" + +#define CONFIG_PHYLIB +#define CONFIG_PHY_ATHEROS + /* FLASH and environment organization */ #define CONFIG_SYS_NO_FLASH
From: Fabio Estevam fabio.estevam@freescale.com
Configure and enable the ethernet clock for mx6solox.
Signed-off-by: Fabio Estevam fabio.estevam@freescale.com --- arch/arm/cpu/armv7/mx6/clock.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+)
diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c index abd9d61..820b8d5 100644 --- a/arch/arm/cpu/armv7/mx6/clock.c +++ b/arch/arm/cpu/armv7/mx6/clock.c @@ -373,6 +373,27 @@ int enable_fec_anatop_clock(enum enet_freq freq) reg &= ~BM_ANADIG_PLL_ENET_BYPASS; writel(reg, &anatop->pll_enet);
+#ifdef CONFIG_MX6SX + /* + * Set enet ahb clock to 200MHz + * pll2_pfd2_396m-> ENET_PODF-> ENET_AHB + */ + reg = readl(&imx_ccm->chsccdr); + reg &= ~(MXC_CCM_CHSCCDR_ENET_PRE_CLK_SEL_MASK + | MXC_CCM_CHSCCDR_ENET_PODF_MASK + | MXC_CCM_CHSCCDR_ENET_CLK_SEL_MASK); + /* PLL2 PFD2 */ + reg |= (4 << MXC_CCM_CHSCCDR_ENET_PRE_CLK_SEL_OFFSET); + /* Div = 2*/ + reg |= (1 << MXC_CCM_CHSCCDR_ENET_PODF_OFFSET); + reg |= (0 << MXC_CCM_CHSCCDR_ENET_CLK_SEL_OFFSET); + writel(reg, &imx_ccm->chsccdr); + + /* Enable enet system clock */ + reg = readl(&imx_ccm->CCGR3); + reg |= MXC_CCM_CCGR3_ENET_MASK; + writel(reg, &imx_ccm->CCGR3); +#endif return 0; } #endif
Hi Fabio,
On 15/08/2014 05:24, Fabio Estevam wrote:
From: Fabio Estevam fabio.estevam@freescale.com
Configure and enable the ethernet clock for mx6solox.
Signed-off-by: Fabio Estevam fabio.estevam@freescale.com
arch/arm/cpu/armv7/mx6/clock.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+)
diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c index abd9d61..820b8d5 100644 --- a/arch/arm/cpu/armv7/mx6/clock.c +++ b/arch/arm/cpu/armv7/mx6/clock.c @@ -373,6 +373,27 @@ int enable_fec_anatop_clock(enum enet_freq freq) reg &= ~BM_ANADIG_PLL_ENET_BYPASS; writel(reg, &anatop->pll_enet);
+#ifdef CONFIG_MX6SX
- /*
* Set enet ahb clock to 200MHz* pll2_pfd2_396m-> ENET_PODF-> ENET_AHB*/- reg = readl(&imx_ccm->chsccdr);
- reg &= ~(MXC_CCM_CHSCCDR_ENET_PRE_CLK_SEL_MASK
| MXC_CCM_CHSCCDR_ENET_PODF_MASK| MXC_CCM_CHSCCDR_ENET_CLK_SEL_MASK);- /* PLL2 PFD2 */
- reg |= (4 << MXC_CCM_CHSCCDR_ENET_PRE_CLK_SEL_OFFSET);
- /* Div = 2*/
- reg |= (1 << MXC_CCM_CHSCCDR_ENET_PODF_OFFSET);
- reg |= (0 << MXC_CCM_CHSCCDR_ENET_CLK_SEL_OFFSET);
- writel(reg, &imx_ccm->chsccdr);
- /* Enable enet system clock */
- reg = readl(&imx_ccm->CCGR3);
- reg |= MXC_CCM_CCGR3_ENET_MASK;
- writel(reg, &imx_ccm->CCGR3);
+#endif return 0; } #endif
Applied to u-boot-imx, thanks !
Best regards, Stefano Babic
Hi Fabio,
On 15/08/2014 05:24, Fabio Estevam wrote:
From: Fabio Estevam fabio.estevam@freescale.com
mx6sxsabresd board has 2 FEC ports, each one connected to a AR8031.
Add support for one FEC port initially.
Signed-off-by: Fabio Estevam fabio.estevam@freescale.com
FEC is not functional after this series.
There is still another patch for FEC that I will submit later that makes FEC functional on mx6solox, but it is orthogonal to this series.
This is ok for me. Please feel free to send the additional patch fixing FEC behavior.
Applied to u-boot-imx, thanks !
Best regards, Stefano Babic
participants (2)
-
Fabio Estevam -
Stefano Babic