1 #include <common.h> 2 #include <netdev.h> 3 #include <miiphy.h> 4 #include <asm/gpio.h> 5 #include <asm/io.h> 6 #include <asm/arch/clock.h> 7 #include <asm/arch/gpio.h> 8 9 int sunxi_gmac_initialize(bd_t *bis) 10 { 11 int pin; 12 struct sunxi_ccm_reg *const ccm = 13 (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; 14 15 /* Set up clock gating */ 16 #ifndef CONFIG_MACH_SUN6I 17 setbits_le32(&ccm->ahb_gate1, 0x1 << AHB_GATE_OFFSET_GMAC); 18 #else 19 setbits_le32(&ccm->ahb_reset0_cfg, 0x1 << AHB_RESET_OFFSET_GMAC); 20 setbits_le32(&ccm->ahb_gate0, 0x1 << AHB_GATE_OFFSET_GMAC); 21 #endif 22 23 /* Set MII clock */ 24 #ifdef CONFIG_RGMII 25 setbits_le32(&ccm->gmac_clk_cfg, CCM_GMAC_CTRL_TX_CLK_SRC_INT_RGMII | 26 CCM_GMAC_CTRL_GPIT_RGMII); 27 #else 28 setbits_le32(&ccm->gmac_clk_cfg, CCM_GMAC_CTRL_TX_CLK_SRC_MII | 29 CCM_GMAC_CTRL_GPIT_MII); 30 #endif 31 32 /* 33 * In order for the gmac nic to work reliable on the Bananapi, we 34 * need to set bits 10-12 GTXDC "GMAC Transmit Clock Delay Chain" 35 * of the GMAC clk register to 3. 36 */ 37 #ifdef CONFIG_TARGET_BANANAPI 38 setbits_le32(&ccm->gmac_clk_cfg, 0x3 << 10); 39 #endif 40 41 #ifndef CONFIG_MACH_SUN6I 42 /* Configure pin mux settings for GMAC */ 43 for (pin = SUNXI_GPA(0); pin <= SUNXI_GPA(16); pin++) { 44 #ifdef CONFIG_RGMII 45 /* skip unused pins in RGMII mode */ 46 if (pin == SUNXI_GPA(9) || pin == SUNXI_GPA(14)) 47 continue; 48 #endif 49 sunxi_gpio_set_cfgpin(pin, SUN7I_GPA0_GMAC); 50 sunxi_gpio_set_drv(pin, 3); 51 } 52 #elif defined CONFIG_RGMII 53 /* Configure sun6i RGMII mode pin mux settings */ 54 for (pin = SUNXI_GPA(0); pin <= SUNXI_GPA(3); pin++) { 55 sunxi_gpio_set_cfgpin(pin, SUN6I_GPA0_GMAC); 56 sunxi_gpio_set_drv(pin, 3); 57 } 58 for (pin = SUNXI_GPA(9); pin <= SUNXI_GPA(14); pin++) { 59 sunxi_gpio_set_cfgpin(pin, SUN6I_GPA0_GMAC); 60 sunxi_gpio_set_drv(pin, 3); 61 } 62 for (pin = SUNXI_GPA(19); pin <= SUNXI_GPA(20); pin++) { 63 sunxi_gpio_set_cfgpin(pin, SUN6I_GPA0_GMAC); 64 sunxi_gpio_set_drv(pin, 3); 65 } 66 for (pin = SUNXI_GPA(25); pin <= SUNXI_GPA(27); pin++) { 67 sunxi_gpio_set_cfgpin(pin, SUN6I_GPA0_GMAC); 68 sunxi_gpio_set_drv(pin, 3); 69 } 70 #elif defined CONFIG_GMII 71 /* Configure sun6i GMII mode pin mux settings */ 72 for (pin = SUNXI_GPA(0); pin <= SUNXI_GPA(27); pin++) { 73 sunxi_gpio_set_cfgpin(pin, SUN6I_GPA0_GMAC); 74 sunxi_gpio_set_drv(pin, 2); 75 } 76 #else 77 /* Configure sun6i MII mode pin mux settings */ 78 for (pin = SUNXI_GPA(0); pin <= SUNXI_GPA(3); pin++) 79 sunxi_gpio_set_cfgpin(pin, SUN6I_GPA0_GMAC); 80 for (pin = SUNXI_GPA(8); pin <= SUNXI_GPA(9); pin++) 81 sunxi_gpio_set_cfgpin(pin, SUN6I_GPA0_GMAC); 82 for (pin = SUNXI_GPA(11); pin <= SUNXI_GPA(14); pin++) 83 sunxi_gpio_set_cfgpin(pin, SUN6I_GPA0_GMAC); 84 for (pin = SUNXI_GPA(19); pin <= SUNXI_GPA(24); pin++) 85 sunxi_gpio_set_cfgpin(pin, SUN6I_GPA0_GMAC); 86 for (pin = SUNXI_GPA(26); pin <= SUNXI_GPA(27); pin++) 87 sunxi_gpio_set_cfgpin(pin, SUN6I_GPA0_GMAC); 88 #endif 89 90 #ifdef CONFIG_RGMII 91 return designware_initialize(SUNXI_GMAC_BASE, PHY_INTERFACE_MODE_RGMII); 92 #elif defined CONFIG_GMII 93 return designware_initialize(SUNXI_GMAC_BASE, PHY_INTERFACE_MODE_GMII); 94 #else 95 return designware_initialize(SUNXI_GMAC_BASE, PHY_INTERFACE_MODE_MII); 96 #endif 97 } 98