From: Jijiang Liu Date: Wed, 18 Jun 2014 10:28:10 +0000 (+0200) Subject: e1000/base: i210 PLL workaround X-Git-Tag: spdx-start~10656 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=95fe5e10ee81105b279cde14a7682acea4965067;p=dpdk.git e1000/base: i210 PLL workaround Signed-off-by: Jijiang Liu Acked-by: Helin Zhang Tested-by: Waterman Cao [Thomas: split code drop] --- diff --git a/lib/librte_pmd_e1000/e1000/e1000_82575.c b/lib/librte_pmd_e1000/e1000/e1000_82575.c index d7af60883b..d901212cd8 100644 --- a/lib/librte_pmd_e1000/e1000/e1000_82575.c +++ b/lib/librte_pmd_e1000/e1000/e1000_82575.c @@ -55,7 +55,6 @@ STATIC s32 e1000_check_for_link_media_swap(struct e1000_hw *hw); STATIC s32 e1000_get_cfg_done_82575(struct e1000_hw *hw); STATIC s32 e1000_get_link_up_info_82575(struct e1000_hw *hw, u16 *speed, u16 *duplex); -STATIC s32 e1000_init_hw_82575(struct e1000_hw *hw); STATIC s32 e1000_phy_hw_reset_sgmii_82575(struct e1000_hw *hw); STATIC s32 e1000_read_phy_reg_sgmii_82575(struct e1000_hw *hw, u32 offset, u16 *data); @@ -449,6 +448,9 @@ STATIC s32 e1000_init_mac_params_82575(struct e1000_hw *hw) else mac->ops.reset_hw = e1000_reset_hw_82575; /* hw initialization */ + if ((mac->type == e1000_i210) || (mac->type == e1000_i211)) + mac->ops.init_hw = e1000_init_hw_i210; + else mac->ops.init_hw = e1000_init_hw_82575; /* link setup */ mac->ops.setup_link = e1000_setup_link_generic; @@ -1460,7 +1462,7 @@ STATIC s32 e1000_reset_hw_82575(struct e1000_hw *hw) * * This inits the hardware readying it for operation. **/ -STATIC s32 e1000_init_hw_82575(struct e1000_hw *hw) +s32 e1000_init_hw_82575(struct e1000_hw *hw) { struct e1000_mac_info *mac = &hw->mac; s32 ret_val; diff --git a/lib/librte_pmd_e1000/e1000/e1000_82575.h b/lib/librte_pmd_e1000/e1000/e1000_82575.h index 2450e6af3c..290fa2abff 100644 --- a/lib/librte_pmd_e1000/e1000/e1000_82575.h +++ b/lib/librte_pmd_e1000/e1000/e1000_82575.h @@ -479,6 +479,7 @@ void e1000_vmdq_set_loopback_pf(struct e1000_hw *hw, bool enable); void e1000_vmdq_set_anti_spoofing_pf(struct e1000_hw *hw, bool enable, int pf); void e1000_vmdq_set_replication_pf(struct e1000_hw *hw, bool enable); s32 e1000_init_nvm_params_82575(struct e1000_hw *hw); +s32 e1000_init_hw_82575(struct e1000_hw *hw); enum e1000_promisc_type { e1000_promisc_disabled = 0, /* all promisc modes disabled */ diff --git a/lib/librte_pmd_e1000/e1000/e1000_defines.h b/lib/librte_pmd_e1000/e1000/e1000_defines.h index febf304abe..544105c949 100644 --- a/lib/librte_pmd_e1000/e1000/e1000_defines.h +++ b/lib/librte_pmd_e1000/e1000/e1000_defines.h @@ -76,6 +76,7 @@ POSSIBILITY OF SUCH DAMAGE. #define E1000_CTRL_EXT_EE_RST 0x00002000 /* Reinitialize from EEPROM */ /* Physical Func Reset Done Indication */ #define E1000_CTRL_EXT_PFRSTD 0x00004000 +#define E1000_CTRL_EXT_SDLPE 0X00040000 /* SerDes Low Power Enable */ #define E1000_CTRL_EXT_SPD_BYPS 0x00008000 /* Speed Select Bypass */ #define E1000_CTRL_EXT_RO_DIS 0x00020000 /* Relaxed Ordering disable */ #define E1000_CTRL_EXT_DMA_DYN_CLK_EN 0x00080000 /* DMA Dynamic Clk Gating */ diff --git a/lib/librte_pmd_e1000/e1000/e1000_i210.c b/lib/librte_pmd_e1000/e1000/e1000_i210.c index 883526b637..6529febf6c 100644 --- a/lib/librte_pmd_e1000/e1000/e1000_i210.c +++ b/lib/librte_pmd_e1000/e1000/e1000_i210.c @@ -914,3 +914,87 @@ s32 e1000_write_xmdio_reg(struct e1000_hw *hw, u16 addr, u8 dev_addr, u16 data) return __e1000_access_xmdio_reg(hw, addr, dev_addr, &data, false); } + +/** + * e1000_pll_workaround_i210 + * @hw: pointer to the HW structure + * + * Works around an errata in the PLL circuit where it occasionally + * provides the wrong clock frequency after power up. + **/ +STATIC s32 e1000_pll_workaround_i210(struct e1000_hw *hw) +{ + s32 ret_val; + u32 wuc, mdicnfg, ctrl_ext, reg_val; + u16 nvm_word, phy_word, pci_word, tmp_nvm; + int i; + + /* Get and set needed register values */ + wuc = E1000_READ_REG(hw, E1000_WUC); + mdicnfg = E1000_READ_REG(hw, E1000_MDICNFG); + reg_val = mdicnfg & ~E1000_MDICNFG_EXT_MDIO; + E1000_WRITE_REG(hw, E1000_MDICNFG, reg_val); + + /* Get data from NVM, or set default */ + ret_val = e1000_read_invm_word_i210(hw, E1000_INVM_AUTOLOAD, + &nvm_word); + if (ret_val != E1000_SUCCESS) + nvm_word = E1000_INVM_DEFAULT_AL; + tmp_nvm = nvm_word | E1000_INVM_PLL_WO_VAL; + for (i = 0; i < E1000_MAX_PLL_TRIES; i++) { + /* check current state */ + hw->phy.ops.read_reg(hw, (E1000_PHY_PLL_FREQ_PAGE | + E1000_PHY_PLL_FREQ_REG), &phy_word); + if ((phy_word & E1000_PHY_PLL_UNCONF) + != E1000_PHY_PLL_UNCONF) { + ret_val = E1000_SUCCESS; + break; + } else { + ret_val = -E1000_ERR_PHY; + } + hw->phy.ops.reset(hw); + ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT); + ctrl_ext |= (E1000_CTRL_EXT_PHYPDEN | E1000_CTRL_EXT_SDLPE); + E1000_WRITE_REG(hw, E1000_CTRL_EXT, ctrl_ext); + + E1000_WRITE_REG(hw, E1000_WUC, 0); + reg_val = (E1000_INVM_AUTOLOAD << 4) | (tmp_nvm << 16); + E1000_WRITE_REG(hw, E1000_EEARBC, reg_val); + + e1000_read_pci_cfg(hw, E1000_PCI_PMCSR, &pci_word); + pci_word |= E1000_PCI_PMCSR_D3; + e1000_write_pci_cfg(hw, E1000_PCI_PMCSR, &pci_word); + msec_delay(1); + pci_word &= ~E1000_PCI_PMCSR_D3; + e1000_write_pci_cfg(hw, E1000_PCI_PMCSR, &pci_word); + reg_val = (E1000_INVM_AUTOLOAD << 4) | (nvm_word << 16); + E1000_WRITE_REG(hw, E1000_EEARBC, reg_val); + + /* restore WUC register */ + E1000_WRITE_REG(hw, E1000_WUC, wuc); + } + /* restore MDICNFG setting */ + E1000_WRITE_REG(hw, E1000_MDICNFG, mdicnfg); + return ret_val; +} + +/** + * e1000_init_hw_i210 - Init hw for I210/I211 + * @hw: pointer to the HW structure + * + * Called to initialize hw for i210 hw family. + **/ +s32 e1000_init_hw_i210(struct e1000_hw *hw) +{ + s32 ret_val; + + DEBUGFUNC("e1000_init_hw_i210"); + if ((hw->mac.type >= e1000_i210) && + !(e1000_get_flash_presence_i210(hw))) { + ret_val = e1000_pll_workaround_i210(hw); + if (ret_val != E1000_SUCCESS) + return ret_val; + } + ret_val = e1000_init_hw_82575(hw); + return ret_val; +} diff --git a/lib/librte_pmd_e1000/e1000/e1000_i210.h b/lib/librte_pmd_e1000/e1000/e1000_i210.h index 44de54bff1..1d79f3a975 100644 --- a/lib/librte_pmd_e1000/e1000/e1000_i210.h +++ b/lib/librte_pmd_e1000/e1000/e1000_i210.h @@ -50,6 +50,7 @@ s32 e1000_read_xmdio_reg(struct e1000_hw *hw, u16 addr, u8 dev_addr, u16 *data); s32 e1000_write_xmdio_reg(struct e1000_hw *hw, u16 addr, u8 dev_addr, u16 data); +s32 e1000_init_hw_i210(struct e1000_hw *hw); #define E1000_STM_OPCODE 0xDB00 #define E1000_EEPROM_FLASH_SIZE_WORD 0x11 @@ -94,4 +95,16 @@ enum E1000_INVM_STRUCTURE_TYPE { #define NVM_INIT_CTRL_4_DEFAULT_I211 0x00C1 #define NVM_LED_1_CFG_DEFAULT_I211 0x0184 #define NVM_LED_0_2_CFG_DEFAULT_I211 0x200C + +/* PLL Defines */ +#define E1000_PCI_PMCSR 0x44 +#define E1000_PCI_PMCSR_D3 0x03 +#define E1000_MAX_PLL_TRIES 5 +#define E1000_PHY_PLL_UNCONF 0xFF +#define E1000_PHY_PLL_FREQ_PAGE 0xFC0000 +#define E1000_PHY_PLL_FREQ_REG 0x000E +#define E1000_INVM_DEFAULT_AL 0x202F +#define E1000_INVM_AUTOLOAD 0x0A +#define E1000_INVM_PLL_WO_VAL 0x0010 + #endif