diff options
Diffstat (limited to 'arch/x86/cpu/quark/quark.c')
| -rw-r--r-- | arch/x86/cpu/quark/quark.c | 249 |
1 files changed, 182 insertions, 67 deletions
diff --git a/arch/x86/cpu/quark/quark.c b/arch/x86/cpu/quark/quark.c index 637c370..77d644a 100644 --- a/arch/x86/cpu/quark/quark.c +++ b/arch/x86/cpu/quark/quark.c @@ -6,10 +6,9 @@ #include <common.h> #include <mmc.h> -#include <netdev.h> -#include <phy.h> #include <asm/io.h> #include <asm/irq.h> +#include <asm/mtrr.h> #include <asm/pci.h> #include <asm/post.h> #include <asm/processor.h> @@ -36,6 +35,55 @@ static void unprotect_spi_flash(void) qrk_pci_write_config_dword(QUARK_LEGACY_BRIDGE, 0xd8, bc); } +static void quark_setup_mtrr(void) +{ + u32 base, mask; + int i; + + disable_caches(); + + /* mark the VGA RAM area as uncacheable */ + msg_port_write(MSG_PORT_HOST_BRIDGE, MTRR_FIX_16K_A0000, + MTRR_FIX_TYPE(MTRR_TYPE_UNCACHEABLE)); + msg_port_write(MSG_PORT_HOST_BRIDGE, MTRR_FIX_16K_B0000, + MTRR_FIX_TYPE(MTRR_TYPE_UNCACHEABLE)); + + /* mark other fixed range areas as cacheable */ + msg_port_write(MSG_PORT_HOST_BRIDGE, MTRR_FIX_64K_00000, + MTRR_FIX_TYPE(MTRR_TYPE_WRBACK)); + msg_port_write(MSG_PORT_HOST_BRIDGE, MTRR_FIX_64K_40000, + MTRR_FIX_TYPE(MTRR_TYPE_WRBACK)); + msg_port_write(MSG_PORT_HOST_BRIDGE, MTRR_FIX_16K_80000, + MTRR_FIX_TYPE(MTRR_TYPE_WRBACK)); + msg_port_write(MSG_PORT_HOST_BRIDGE, MTRR_FIX_16K_90000, + MTRR_FIX_TYPE(MTRR_TYPE_WRBACK)); + for (i = MTRR_FIX_4K_C0000; i <= MTRR_FIX_4K_FC000; i++) + msg_port_write(MSG_PORT_HOST_BRIDGE, i, + MTRR_FIX_TYPE(MTRR_TYPE_WRBACK)); + + /* variable range MTRR#0: ROM area */ + mask = ~(CONFIG_SYS_MONITOR_LEN - 1); + base = CONFIG_SYS_TEXT_BASE & mask; + msg_port_write(MSG_PORT_HOST_BRIDGE, MTRR_VAR_PHYBASE(MTRR_VAR_ROM), + base | MTRR_TYPE_WRBACK); + msg_port_write(MSG_PORT_HOST_BRIDGE, MTRR_VAR_PHYMASK(MTRR_VAR_ROM), + mask | MTRR_PHYS_MASK_VALID); + + /* variable range MTRR#1: eSRAM area */ + mask = ~(ESRAM_SIZE - 1); + base = CONFIG_ESRAM_BASE & mask; + msg_port_write(MSG_PORT_HOST_BRIDGE, MTRR_VAR_PHYBASE(MTRR_VAR_ESRAM), + base | MTRR_TYPE_WRBACK); + msg_port_write(MSG_PORT_HOST_BRIDGE, MTRR_VAR_PHYMASK(MTRR_VAR_ESRAM), + mask | MTRR_PHYS_MASK_VALID); + + /* enable both variable and fixed range MTRRs */ + msg_port_write(MSG_PORT_HOST_BRIDGE, MTRR_DEF_TYPE, + MTRR_DEF_TYPE_EN | MTRR_DEF_TYPE_FIX_EN); + + enable_caches(); +} + static void quark_setup_bars(void) { /* GPIO - D31:F0:R44h */ @@ -75,8 +123,6 @@ static void quark_setup_bars(void) static void quark_pcie_early_init(void) { - u32 pcie_cfg; - /* * Step1: Assert PCIe signal PERST# * @@ -86,23 +132,18 @@ static void quark_pcie_early_init(void) board_assert_perst(); /* Step2: PHY common lane reset */ - pcie_cfg = msg_port_alt_read(MSG_PORT_SOC_UNIT, PCIE_CFG); - pcie_cfg |= PCIE_PHY_LANE_RST; - msg_port_alt_write(MSG_PORT_SOC_UNIT, PCIE_CFG, pcie_cfg); + msg_port_alt_setbits(MSG_PORT_SOC_UNIT, PCIE_CFG, PCIE_PHY_LANE_RST); /* wait 1 ms for PHY common lane reset */ mdelay(1); /* Step3: PHY sideband interface reset and controller main reset */ - pcie_cfg = msg_port_alt_read(MSG_PORT_SOC_UNIT, PCIE_CFG); - pcie_cfg |= (PCIE_PHY_SB_RST | PCIE_CTLR_MAIN_RST); - msg_port_alt_write(MSG_PORT_SOC_UNIT, PCIE_CFG, pcie_cfg); + msg_port_alt_setbits(MSG_PORT_SOC_UNIT, PCIE_CFG, + PCIE_PHY_SB_RST | PCIE_CTLR_MAIN_RST); /* wait 80ms for PLL to lock */ mdelay(80); /* Step4: Controller sideband interface reset */ - pcie_cfg = msg_port_alt_read(MSG_PORT_SOC_UNIT, PCIE_CFG); - pcie_cfg |= PCIE_CTLR_SB_RST; - msg_port_alt_write(MSG_PORT_SOC_UNIT, PCIE_CFG, pcie_cfg); + msg_port_alt_setbits(MSG_PORT_SOC_UNIT, PCIE_CFG, PCIE_CTLR_SB_RST); /* wait 20ms for controller sideband interface reset */ mdelay(20); @@ -110,66 +151,80 @@ static void quark_pcie_early_init(void) board_deassert_perst(); /* Step6: Controller primary interface reset */ - pcie_cfg = msg_port_alt_read(MSG_PORT_SOC_UNIT, PCIE_CFG); - pcie_cfg |= PCIE_CTLR_PRI_RST; - msg_port_alt_write(MSG_PORT_SOC_UNIT, PCIE_CFG, pcie_cfg); + msg_port_alt_setbits(MSG_PORT_SOC_UNIT, PCIE_CFG, PCIE_CTLR_PRI_RST); /* Mixer Load Lane 0 */ - pcie_cfg = msg_port_io_read(MSG_PORT_PCIE_AFE, PCIE_RXPICTRL0_L0); - pcie_cfg &= ~((1 << 6) | (1 << 7)); - msg_port_io_write(MSG_PORT_PCIE_AFE, PCIE_RXPICTRL0_L0, pcie_cfg); + msg_port_io_clrbits(MSG_PORT_PCIE_AFE, PCIE_RXPICTRL0_L0, + (1 << 6) | (1 << 7)); /* Mixer Load Lane 1 */ - pcie_cfg = msg_port_io_read(MSG_PORT_PCIE_AFE, PCIE_RXPICTRL0_L1); - pcie_cfg &= ~((1 << 6) | (1 << 7)); - msg_port_io_write(MSG_PORT_PCIE_AFE, PCIE_RXPICTRL0_L1, pcie_cfg); + msg_port_io_clrbits(MSG_PORT_PCIE_AFE, PCIE_RXPICTRL0_L1, + (1 << 6) | (1 << 7)); } static void quark_usb_early_init(void) { - u32 usb; - /* The sequence below comes from Quark firmware writer guide */ - usb = msg_port_alt_read(MSG_PORT_USB_AFE, USB2_GLOBAL_PORT); - usb &= ~(1 << 1); - usb |= ((1 << 6) | (1 << 7)); - msg_port_alt_write(MSG_PORT_USB_AFE, USB2_GLOBAL_PORT, usb); + msg_port_alt_clrsetbits(MSG_PORT_USB_AFE, USB2_GLOBAL_PORT, + 1 << 1, (1 << 6) | (1 << 7)); - usb = msg_port_alt_read(MSG_PORT_USB_AFE, USB2_COMPBG); - usb &= ~((1 << 8) | (1 << 9)); - usb |= ((1 << 7) | (1 << 10)); - msg_port_alt_write(MSG_PORT_USB_AFE, USB2_COMPBG, usb); + msg_port_alt_clrsetbits(MSG_PORT_USB_AFE, USB2_COMPBG, + (1 << 8) | (1 << 9), (1 << 7) | (1 << 10)); - usb = msg_port_alt_read(MSG_PORT_USB_AFE, USB2_PLL2); - usb |= (1 << 29); - msg_port_alt_write(MSG_PORT_USB_AFE, USB2_PLL2, usb); + msg_port_alt_setbits(MSG_PORT_USB_AFE, USB2_PLL2, 1 << 29); - usb = msg_port_alt_read(MSG_PORT_USB_AFE, USB2_PLL1); - usb |= (1 << 1); - msg_port_alt_write(MSG_PORT_USB_AFE, USB2_PLL1, usb); + msg_port_alt_setbits(MSG_PORT_USB_AFE, USB2_PLL1, 1 << 1); - usb = msg_port_alt_read(MSG_PORT_USB_AFE, USB2_PLL1); - usb &= ~((1 << 3) | (1 << 4) | (1 << 5)); - usb |= (1 << 6); - msg_port_alt_write(MSG_PORT_USB_AFE, USB2_PLL1, usb); + msg_port_alt_clrsetbits(MSG_PORT_USB_AFE, USB2_PLL1, + (1 << 3) | (1 << 4) | (1 << 5), 1 << 6); - usb = msg_port_alt_read(MSG_PORT_USB_AFE, USB2_PLL2); - usb &= ~(1 << 29); - msg_port_alt_write(MSG_PORT_USB_AFE, USB2_PLL2, usb); + msg_port_alt_clrbits(MSG_PORT_USB_AFE, USB2_PLL2, 1 << 29); - usb = msg_port_alt_read(MSG_PORT_USB_AFE, USB2_PLL2); - usb |= (1 << 24); - msg_port_alt_write(MSG_PORT_USB_AFE, USB2_PLL2, usb); + msg_port_alt_setbits(MSG_PORT_USB_AFE, USB2_PLL2, 1 << 24); } -static void quark_enable_legacy_seg(void) +static void quark_thermal_early_init(void) { - u32 hmisc2; + /* The sequence below comes from Quark firmware writer guide */ + + /* thermal sensor mode config */ + msg_port_alt_clrsetbits(MSG_PORT_SOC_UNIT, TS_CFG1, + (1 << 3) | (1 << 4) | (1 << 5), 1 << 5); + msg_port_alt_clrsetbits(MSG_PORT_SOC_UNIT, TS_CFG1, + (1 << 8) | (1 << 9) | (1 << 10) | (1 << 11) | + (1 << 12), 1 << 9); + msg_port_alt_setbits(MSG_PORT_SOC_UNIT, TS_CFG1, 1 << 14); + msg_port_alt_clrbits(MSG_PORT_SOC_UNIT, TS_CFG1, 1 << 17); + msg_port_alt_clrbits(MSG_PORT_SOC_UNIT, TS_CFG1, 1 << 18); + msg_port_alt_clrsetbits(MSG_PORT_SOC_UNIT, TS_CFG2, 0xffff, 0x011f); + msg_port_alt_clrsetbits(MSG_PORT_SOC_UNIT, TS_CFG3, 0xff, 0x17); + msg_port_alt_clrsetbits(MSG_PORT_SOC_UNIT, TS_CFG3, + (1 << 8) | (1 << 9), 1 << 8); + msg_port_alt_clrbits(MSG_PORT_SOC_UNIT, TS_CFG3, 0xff000000); + msg_port_alt_clrsetbits(MSG_PORT_SOC_UNIT, TS_CFG4, + 0x7ff800, 0xc8 << 11); + + /* thermal monitor catastrophic trip set point (105 celsius) */ + msg_port_clrsetbits(MSG_PORT_RMU, TS_TRIP, 0xff, 155); + + /* thermal monitor catastrophic trip clear point (0 celsius) */ + msg_port_clrsetbits(MSG_PORT_RMU, TS_TRIP, 0xff0000, 50 << 16); + + /* take thermal sensor out of reset */ + msg_port_alt_clrbits(MSG_PORT_SOC_UNIT, TS_CFG4, 1 << 0); + + /* enable thermal monitor */ + msg_port_setbits(MSG_PORT_RMU, TS_MODE, 1 << 15); + + /* lock all thermal configuration */ + msg_port_setbits(MSG_PORT_RMU, RMU_CTRL, (1 << 5) | (1 << 6)); +} - hmisc2 = msg_port_read(MSG_PORT_HOST_BRIDGE, HMISC2); - hmisc2 |= (HMISC2_SEGE | HMISC2_SEGF | HMISC2_SEGAB); - msg_port_write(MSG_PORT_HOST_BRIDGE, HMISC2, hmisc2); +static void quark_enable_legacy_seg(void) +{ + msg_port_setbits(MSG_PORT_HOST_BRIDGE, HMISC2, + HMISC2_SEGE | HMISC2_SEGF | HMISC2_SEGAB); } int arch_cpu_init(void) @@ -186,6 +241,13 @@ int arch_cpu_init(void) return ret; /* + * Quark SoC does not support MSR MTRRs. Fixed and variable range MTRRs + * are accessed indirectly via the message port and not the traditional + * MSR mechanism. Only UC, WT and WB cache types are supported. + */ + quark_setup_mtrr(); + + /* * Quark SoC has some non-standard BARs (excluding PCI standard BARs) * which need be initialized with suggested values */ @@ -205,6 +267,9 @@ int arch_cpu_init(void) /* Initialize USB2 PHY */ quark_usb_early_init(); + /* Initialize thermal sensor */ + quark_thermal_early_init(); + /* Turn on legacy segments (A/B/E/F) decode to system RAM */ quark_enable_legacy_seg(); @@ -225,27 +290,57 @@ void reset_cpu(ulong addr) x86_full_reset(); } -int cpu_mmc_init(bd_t *bis) +static void quark_pcie_init(void) { - return pci_mmc_init("Quark SDHCI", mmc_supported, - ARRAY_SIZE(mmc_supported)); + u32 val; + + /* PCIe upstream non-posted & posted request size */ + qrk_pci_write_config_dword(QUARK_PCIE0, PCIE_RP_CCFG, + CCFG_UPRS | CCFG_UNRS); + qrk_pci_write_config_dword(QUARK_PCIE1, PCIE_RP_CCFG, + CCFG_UPRS | CCFG_UNRS); + + /* PCIe packet fast transmit mode (IPF) */ + qrk_pci_write_config_dword(QUARK_PCIE0, PCIE_RP_MPC2, MPC2_IPF); + qrk_pci_write_config_dword(QUARK_PCIE1, PCIE_RP_MPC2, MPC2_IPF); + + /* PCIe message bus idle counter (SBIC) */ + qrk_pci_read_config_dword(QUARK_PCIE0, PCIE_RP_MBC, &val); + val |= MBC_SBIC; + qrk_pci_write_config_dword(QUARK_PCIE0, PCIE_RP_MBC, val); + qrk_pci_read_config_dword(QUARK_PCIE1, PCIE_RP_MBC, &val); + val |= MBC_SBIC; + qrk_pci_write_config_dword(QUARK_PCIE1, PCIE_RP_MBC, val); } -int cpu_eth_init(bd_t *bis) +static void quark_usb_init(void) { - u32 base; - int ret0, ret1; + u32 bar; - qrk_pci_read_config_dword(QUARK_EMAC0, PCI_BASE_ADDRESS_0, &base); - ret0 = designware_initialize(base, PHY_INTERFACE_MODE_RMII); + /* Change USB EHCI packet buffer OUT/IN threshold */ + qrk_pci_read_config_dword(QUARK_USB_EHCI, PCI_BASE_ADDRESS_0, &bar); + writel((0x7f << 16) | 0x7f, bar + EHCI_INSNREG01); - qrk_pci_read_config_dword(QUARK_EMAC1, PCI_BASE_ADDRESS_0, &base); - ret1 = designware_initialize(base, PHY_INTERFACE_MODE_RMII); + /* Disable USB device interrupts */ + qrk_pci_read_config_dword(QUARK_USB_DEVICE, PCI_BASE_ADDRESS_0, &bar); + writel(0x7f, bar + USBD_INT_MASK); + writel((0xf << 16) | 0xf, bar + USBD_EP_INT_MASK); + writel((0xf << 16) | 0xf, bar + USBD_EP_INT_STS); +} - if (ret0 < 0 && ret1 < 0) - return -1; - else - return 0; +int arch_early_init_r(void) +{ + quark_pcie_init(); + + quark_usb_init(); + + return 0; +} + +int cpu_mmc_init(bd_t *bis) +{ + return pci_mmc_init("Quark SDHCI", mmc_supported, + ARRAY_SIZE(mmc_supported)); } void cpu_irq_init(void) @@ -275,3 +370,23 @@ int arch_misc_init(void) { return pirq_init(); } + +void board_final_cleanup(void) +{ + struct quark_rcba *rcba; + u32 base, val; + + qrk_pci_read_config_dword(QUARK_LEGACY_BRIDGE, LB_RCBA, &base); + base &= ~MEM_BAR_EN; + rcba = (struct quark_rcba *)base; + + /* Initialize 'Component ID' to zero */ + val = readl(&rcba->esd); + val &= ~0xff0000; + writel(val, &rcba->esd); + + /* Lock HMBOUND for security */ + msg_port_setbits(MSG_PORT_HOST_BRIDGE, HM_BOUND, HM_BOUND_LOCK); + + return; +} |