diff options
Diffstat (limited to 'arch/arm/mach-imx/imx8m/clock_imx8mm.c')
| -rw-r--r-- | arch/arm/mach-imx/imx8m/clock_imx8mm.c | 202 |
1 files changed, 85 insertions, 117 deletions
diff --git a/arch/arm/mach-imx/imx8m/clock_imx8mm.c b/arch/arm/mach-imx/imx8m/clock_imx8mm.c index 64ad57e9b3..31c34b6031 100644 --- a/arch/arm/mach-imx/imx8m/clock_imx8mm.c +++ b/arch/arm/mach-imx/imx8m/clock_imx8mm.c @@ -15,6 +15,7 @@ #include <errno.h> #include <linux/bitops.h> #include <linux/delay.h> +#include <phy.h> DECLARE_GLOBAL_DATA_PTR; @@ -36,14 +37,14 @@ void enable_ocotp_clk(unsigned char enable) int enable_i2c_clk(unsigned char enable, unsigned i2c_num) { - u8 i2c_ccgr[6] = { + u8 i2c_ccgr[] = { CCGR_I2C1, CCGR_I2C2, CCGR_I2C3, CCGR_I2C4, #if (IS_ENABLED(CONFIG_IMX8MP)) CCGR_I2C5_8MP, CCGR_I2C6_8MP #endif }; - if (i2c_num > ARRAY_SIZE(i2c_ccgr)) + if (i2c_num >= ARRAY_SIZE(i2c_ccgr)) return -EINVAL; clock_enable(i2c_ccgr[i2c_num], !!enable); @@ -825,141 +826,108 @@ u32 mxc_get_clock(enum mxc_clock clk) return 0; } -#ifdef CONFIG_DWC_ETH_QOS -int set_clk_eqos(enum enet_freq type) +#if defined(CONFIG_IMX8MP) && defined(CONFIG_DWC_ETH_QOS) +static int imx8mp_eqos_interface_init(struct udevice *dev, + phy_interface_t interface_type) { - u32 target; - u32 enet1_ref; - - switch (type) { - case ENET_125MHZ: - enet1_ref = ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_125M_CLK; - break; - case ENET_50MHZ: - enet1_ref = ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_50M_CLK; - break; - case ENET_25MHZ: - enet1_ref = ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_25M_CLK; + struct iomuxc_gpr_base_regs *gpr = + (struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR; + + clrbits_le32(&gpr->gpr[1], + IOMUXC_GPR_GPR1_GPR_ENET_QOS_INTF_SEL_MASK | + IOMUXC_GPR_GPR1_GPR_ENET_QOS_RGMII_EN | + IOMUXC_GPR_GPR1_GPR_ENET_QOS_CLK_TX_CLK_SEL | + IOMUXC_GPR_GPR1_GPR_ENET_QOS_CLK_GEN_EN); + + switch (interface_type) { + case PHY_INTERFACE_MODE_MII: + setbits_le32(&gpr->gpr[1], + IOMUXC_GPR_GPR1_GPR_ENET_QOS_CLK_GEN_EN | + IOMUXC_GPR_GPR1_GPR_ENET_QOS_INTF_SEL_MII); + break; + case PHY_INTERFACE_MODE_RMII: + setbits_le32(&gpr->gpr[1], + IOMUXC_GPR_GPR1_GPR_ENET_QOS_CLK_TX_CLK_SEL | + IOMUXC_GPR_GPR1_GPR_ENET_QOS_CLK_GEN_EN | + IOMUXC_GPR_GPR1_GPR_ENET_QOS_INTF_SEL_RMII); + break; + case PHY_INTERFACE_MODE_RGMII: + case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII_RXID: + case PHY_INTERFACE_MODE_RGMII_TXID: + setbits_le32(&gpr->gpr[1], + IOMUXC_GPR_GPR1_GPR_ENET_QOS_RGMII_EN | + IOMUXC_GPR_GPR1_GPR_ENET_QOS_CLK_GEN_EN | + IOMUXC_GPR_GPR1_GPR_ENET_QOS_INTF_SEL_RGMII); break; default: return -EINVAL; } - /* disable the clock first */ - clock_enable(CCGR_QOS_ETHENET, 0); - clock_enable(CCGR_SDMA2, 0); - - /* set enet axi clock 266Mhz */ - target = CLK_ROOT_ON | ENET_AXI_CLK_ROOT_FROM_SYS1_PLL_266M | - CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) | - CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1); - clock_set_target_val(ENET_AXI_CLK_ROOT, target); - - target = CLK_ROOT_ON | enet1_ref | - CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) | - CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1); - clock_set_target_val(ENET_QOS_CLK_ROOT, target); - - target = CLK_ROOT_ON | - ENET1_TIME_CLK_ROOT_FROM_PLL_ENET_MAIN_100M_CLK | - CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) | - CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV4); - clock_set_target_val(ENET_QOS_TIMER_CLK_ROOT, target); - - /* enable clock */ - clock_enable(CCGR_QOS_ETHENET, 1); - clock_enable(CCGR_SDMA2, 1); - return 0; } - -int imx_eqos_txclk_set_rate(ulong rate) +#else +static int imx8mp_eqos_interface_init(struct udevice *dev, + phy_interface_t interface_type) { - u32 val; - u32 eqos_post_div; - - /* disable the clock first */ - clock_enable(CCGR_QOS_ETHENET, 0); - clock_enable(CCGR_SDMA2, 0); - - switch (rate) { - case 125000000: - eqos_post_div = 1; - break; - case 25000000: - eqos_post_div = 125000000 / 25000000; - break; - case 2500000: - eqos_post_div = 125000000 / 2500000; - break; - default: - return -EINVAL; - } - - clock_get_target_val(ENET_QOS_CLK_ROOT, &val); - val &= ~(CLK_ROOT_PRE_DIV_MASK | CLK_ROOT_POST_DIV_MASK); - val |= CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) | - CLK_ROOT_POST_DIV(eqos_post_div - 1); - clock_set_target_val(ENET_QOS_CLK_ROOT, val); - - /* enable clock */ - clock_enable(CCGR_QOS_ETHENET, 1); - clock_enable(CCGR_SDMA2, 1); - return 0; } - -u32 imx_get_eqos_csr_clk(void) -{ - return get_root_clk(ENET_AXI_CLK_ROOT); -} #endif #ifdef CONFIG_FEC_MXC -int set_clk_enet(enum enet_freq type) +static int imx8mp_fec_interface_init(struct udevice *dev, + phy_interface_t interface_type, + bool mx8mp) { - u32 target; - u32 enet1_ref; - - switch (type) { - case ENET_125MHZ: - enet1_ref = ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_125M_CLK; - break; - case ENET_50MHZ: - enet1_ref = ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_50M_CLK; - break; - case ENET_25MHZ: - enet1_ref = ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_25M_CLK; + /* i.MX8MP has extra RGMII_EN bit in IOMUXC GPR1 register */ + const u32 rgmii_en = mx8mp ? IOMUXC_GPR_GPR1_GPR_ENET1_RGMII_EN : 0; + struct iomuxc_gpr_base_regs *gpr = + (struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR; + + clrbits_le32(&gpr->gpr[1], + rgmii_en | + IOMUXC_GPR_GPR1_GPR_ENET1_TX_CLK_SEL); + + switch (interface_type) { + case PHY_INTERFACE_MODE_MII: + case PHY_INTERFACE_MODE_RMII: + setbits_le32(&gpr->gpr[1], IOMUXC_GPR_GPR1_GPR_ENET1_TX_CLK_SEL); + break; + case PHY_INTERFACE_MODE_RGMII: + case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII_RXID: + case PHY_INTERFACE_MODE_RGMII_TXID: + setbits_le32(&gpr->gpr[1], rgmii_en); break; default: return -EINVAL; } - /* disable the clock first */ - clock_enable(CCGR_ENET1, 0); - clock_enable(CCGR_SIM_ENET, 0); - - /* set enet axi clock 266Mhz */ - target = CLK_ROOT_ON | ENET_AXI_CLK_ROOT_FROM_SYS1_PLL_266M | - CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) | - CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1); - clock_set_target_val(ENET_AXI_CLK_ROOT, target); - - target = CLK_ROOT_ON | enet1_ref | - CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) | - CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1); - clock_set_target_val(ENET_REF_CLK_ROOT, target); - - target = CLK_ROOT_ON | - ENET1_TIME_CLK_ROOT_FROM_PLL_ENET_MAIN_100M_CLK | - CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) | - CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV4); - clock_set_target_val(ENET_TIMER_CLK_ROOT, target); - - /* enable clock */ - clock_enable(CCGR_SIM_ENET, 1); - clock_enable(CCGR_ENET1, 1); - return 0; } #endif + +int board_interface_eth_init(struct udevice *dev, phy_interface_t interface_type) +{ + if (IS_ENABLED(CONFIG_IMX8MM) && + IS_ENABLED(CONFIG_FEC_MXC) && + device_is_compatible(dev, "fsl,imx8mm-fec")) + return imx8mp_fec_interface_init(dev, interface_type, false); + + if (IS_ENABLED(CONFIG_IMX8MN) && + IS_ENABLED(CONFIG_FEC_MXC) && + device_is_compatible(dev, "fsl,imx8mn-fec")) + return imx8mp_fec_interface_init(dev, interface_type, false); + + if (IS_ENABLED(CONFIG_IMX8MP) && + IS_ENABLED(CONFIG_FEC_MXC) && + device_is_compatible(dev, "fsl,imx8mp-fec")) + return imx8mp_fec_interface_init(dev, interface_type, true); + + if (IS_ENABLED(CONFIG_IMX8MP) && + IS_ENABLED(CONFIG_DWC_ETH_QOS) && + device_is_compatible(dev, "nxp,imx8mp-dwmac-eqos")) + return imx8mp_eqos_interface_init(dev, interface_type); + + return -EINVAL; +} |