Intel Quark SoC has the same interrupt routing mechanism as the Queensbay platform, only the difference is that PCI devices' INTA/B/C/D are harcoded and cannot be changed freely.

Signed-off-by: Bin Meng bmeng.cn@gmail.com Acked-by: Simon Glass sjg@chromium.org

---

Changes in v2: None

arch/x86/cpu/quark/quark.c | 31 ++++++++++++++ arch/x86/dts/galileo.dts | 22 ++++++++++ arch/x86/include/asm/arch-quark/device.h | 70 +++++++++++++++++++++++++------- arch/x86/include/asm/arch-quark/quark.h | 15 +++++++ configs/galileo_defconfig | 1 + include/configs/galileo.h | 1 + 6 files changed, 125 insertions(+), 15 deletions(-)

diff --git a/arch/x86/cpu/quark/quark.c b/arch/x86/cpu/quark/quark.c index e78a271..20cc09e 100644 --- a/arch/x86/cpu/quark/quark.c +++ b/arch/x86/cpu/quark/quark.c @@ -9,6 +9,7 @@ #include <netdev.h> #include <phy.h> #include <asm/io.h> +#include <asm/irq.h> #include <asm/pci.h> #include <asm/post.h> #include <asm/processor.h> @@ -147,3 +148,33 @@ int cpu_eth_init(bd_t *bis) else return 0; } + +void cpu_irq_init(void) +{ + struct quark_rcba *rcba; + u32 base; + + base = x86_pci_read_config32(QUARK_LEGACY_BRIDGE, LB_RCBA); + base &= ~MEM_BAR_EN; + rcba = (struct quark_rcba *)base; + + /* + * Route Quark PCI device interrupt pin to PIRQ + * + * Route device#23's INTA/B/C/D to PIRQA/B/C/D + * Route device#20,21's INTA/B/C/D to PIRQE/F/G/H + */ + writew(PIRQC, &rcba->rmu_ir); + writew(PIRQA | (PIRQB << 4) | (PIRQC << 8) | (PIRQD << 12), + &rcba->d23_ir); + writew(PIRQD, &rcba->core_ir); + writew(PIRQE | (PIRQF << 4) | (PIRQG << 8) | (PIRQH << 12), + &rcba->d20d21_ir); +} + +int arch_misc_init(void) +{ + pirq_init(); + + return 0; +} diff --git a/arch/x86/dts/galileo.dts b/arch/x86/dts/galileo.dts index 60dbc5f..2ba081e 100644 --- a/arch/x86/dts/galileo.dts +++ b/arch/x86/dts/galileo.dts @@ -7,6 +7,7 @@ /dts-v1/;

#include <dt-bindings/mrc/quark.h> +#include <dt-bindings/interrupt-router/intel-irq.h>

/include/ "skeleton.dtsi"

@@ -67,6 +68,27 @@ clock-frequency = <44236800>; current-speed = <115200>; }; + + irq-router@1f,0 { + reg = <0x0000f800 0 0 0 0>; + compatible = "intel,irq-router"; + intel,pirq-config = "pci"; + intel,pirq-link = <0x60 8>; + intel,pirq-mask = <0xdef8>; + intel,pirq-routing = < + PCI_BDF(0, 20, 0) INTA PIRQE + PCI_BDF(0, 20, 1) INTB PIRQF + PCI_BDF(0, 20, 2) INTC PIRQG + PCI_BDF(0, 20, 3) INTD PIRQH + PCI_BDF(0, 20, 4) INTA PIRQE + PCI_BDF(0, 20, 5) INTB PIRQF + PCI_BDF(0, 20, 6) INTC PIRQG + PCI_BDF(0, 20, 7) INTD PIRQH + PCI_BDF(0, 21, 0) INTA PIRQE + PCI_BDF(0, 21, 1) INTB PIRQF + PCI_BDF(0, 21, 2) INTC PIRQG + >; + }; };

gpioa { diff --git a/arch/x86/include/asm/arch-quark/device.h b/arch/x86/include/asm/arch-quark/device.h index 4af3ded..7882f33 100644 --- a/arch/x86/include/asm/arch-quark/device.h +++ b/arch/x86/include/asm/arch-quark/device.h @@ -9,20 +9,60 @@

#include <pci.h>

-#define QUARK_HOST_BRIDGE PCI_BDF(0, 0, 0) -#define QUARK_MMC_SDIO PCI_BDF(0, 20, 0) -#define QUARK_UART0 PCI_BDF(0, 20, 1) -#define QUARK_USB_DEVICE PCI_BDF(0, 20, 2) -#define QUARK_USB_EHCI PCI_BDF(0, 20, 3) -#define QUARK_USB_OHCI PCI_BDF(0, 20, 4) -#define QUARK_UART1 PCI_BDF(0, 20, 5) -#define QUARK_EMAC0 PCI_BDF(0, 20, 6) -#define QUARK_EMAC1 PCI_BDF(0, 20, 7) -#define QUARK_SPI0 PCI_BDF(0, 21, 0) -#define QUARK_SPI1 PCI_BDF(0, 21, 1) -#define QUARK_I2C_GPIO PCI_BDF(0, 21, 2) -#define QUARK_PCIE0 PCI_BDF(0, 23, 0) -#define QUARK_PCIE1 PCI_BDF(0, 23, 1) -#define QUARK_LEGACY_BRIDGE PCI_BDF(0, 31, 0) +#define QUARK_HOST_BRIDGE_DEV 0 +#define QUARK_HOST_BRIDGE_FUNC 0 + +#define QUARK_DEV_20 20 +#define QUARK_MMC_SDIO_FUNC 0 +#define QUARK_UART0_FUNC 1 +#define QUARK_USB_DEVICE_FUNC 2 +#define QUARK_USB_EHCI_FUNC 3 +#define QUARK_USB_OHCI_FUNC 4 +#define QUARK_UART1_FUNC 5 +#define QUARK_EMAC0_FUNC 6 +#define QUARK_EMAC1_FUNC 7 + +#define QUARK_DEV_21 21 +#define QUARK_SPI0_FUNC 0 +#define QUARK_SPI1_FUNC 1 +#define QUARK_I2C_GPIO_FUNC 2 + +#define QUARK_DEV_23 23 +#define QUARK_PCIE0_FUNC 0 +#define QUARK_PCIE1_FUNC 1 + +#define QUARK_LGC_BRIDGE_DEV 31 +#define QUARK_LGC_BRIDGE_FUNC 0 + +#define QUARK_HOST_BRIDGE \ + PCI_BDF(0, QUARK_HOST_BRIDGE_DEV, QUARK_HOST_BRIDGE_FUNC) +#define QUARK_MMC_SDIO \ + PCI_BDF(0, QUARK_DEV_20, QUARK_MMC_SDIO_FUNC) +#define QUARK_UART0 \ + PCI_BDF(0, QUARK_DEV_20, QUARK_UART0_FUNC) +#define QUARK_USB_DEVICE \ + PCI_BDF(0, QUARK_DEV_20, QUARK_USB_DEVICE_FUNC) +#define QUARK_USB_EHCI \ + PCI_BDF(0, QUARK_DEV_20, QUARK_USB_EHCI_FUNC) +#define QUARK_USB_OHCI \ + PCI_BDF(0, QUARK_DEV_20, QUARK_USB_OHCI_FUNC) +#define QUARK_UART1 \ + PCI_BDF(0, QUARK_DEV_20, QUARK_UART1_FUNC) +#define QUARK_EMAC0 \ + PCI_BDF(0, QUARK_DEV_20, QUARK_EMAC0_FUNC) +#define QUARK_EMAC1 \ + PCI_BDF(0, QUARK_DEV_20, QUARK_EMAC1_FUNC) +#define QUARK_SPI0 \ + PCI_BDF(0, QUARK_DEV_21, QUARK_SPI0_FUNC) +#define QUARK_SPI1 \ + PCI_BDF(0, QUARK_DEV_21, QUARK_SPI1_FUNC) +#define QUARK_I2C_GPIO \ + PCI_BDF(0, QUARK_DEV_21, QUARK_I2C_GPIO_FUNC) +#define QUARK_PCIE0 \ + PCI_BDF(0, QUARK_DEV_23, QUARK_PCIE0_FUNC) +#define QUARK_PCIE1 \ + PCI_BDF(0, QUARK_DEV_23, QUARK_PCIE1_FUNC) +#define QUARK_LEGACY_BRIDGE \ + PCI_BDF(0, QUARK_LGC_BRIDGE_DEV, QUARK_LGC_BRIDGE_FUNC)

#endif /* _QUARK_DEVICE_H_ */ diff --git a/arch/x86/include/asm/arch-quark/quark.h b/arch/x86/include/asm/arch-quark/quark.h index 6dd02fd..c997928 100644 --- a/arch/x86/include/asm/arch-quark/quark.h +++ b/arch/x86/include/asm/arch-quark/quark.h @@ -76,4 +76,19 @@ #define LB_BC 0xd8 #define LB_RCBA 0xf0

+#ifndef __ASSEMBLY__ + +/* Root Complex Register Block */ +struct quark_rcba { + u32 rctl; + u32 esd; + u32 rsvd1[3150]; + u16 rmu_ir; + u16 d23_ir; + u16 core_ir; + u16 d20d21_ir; +}; + +#endif /* __ASSEMBLY__ */ + #endif /* _QUARK_H_ */ diff --git a/configs/galileo_defconfig b/configs/galileo_defconfig index 1a54ba5..7273acc 100644 --- a/configs/galileo_defconfig +++ b/configs/galileo_defconfig @@ -7,3 +7,4 @@ CONFIG_DEFAULT_DEVICE_TREE="galileo" CONFIG_ETH_DESIGNWARE=y CONFIG_NETDEVICES=y CONFIG_NET=y +CONFIG_GENERATE_PIRQ_TABLE=y diff --git a/include/configs/galileo.h b/include/configs/galileo.h index 083d8b4..fd89bf3 100644 --- a/include/configs/galileo.h +++ b/include/configs/galileo.h @@ -15,6 +15,7 @@

#define CONFIG_SYS_MONITOR_LEN (1 << 20) #define CONFIG_BOARD_EARLY_INIT_F +#define CONFIG_ARCH_MISC_INIT

#define CONFIG_X86_SERIAL