diff options
| author | Simon Glass <sjg@chromium.org> | 2016-01-19 21:32:30 -0700 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2016-01-24 12:07:18 +0800 |
| commit | 117bfc7fbe1cfe2a7e8a21f996adf9a59f60405d (patch) | |
| tree | 2f0b12e01f0eb504c9878f5311e0096345af430f /arch/x86/cpu | |
| parent | f8b4e45e313f1f3ab092d1172e5348466c57481c (diff) | |
dm: x86: quark: Add an interrupt driver
Add a driver for interrupts on quark and move the code currently in
cpu_irq_init() into its probe() method.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'arch/x86/cpu')
| -rw-r--r-- | arch/x86/cpu/quark/Makefile | 2 | ||||
| -rw-r--r-- | arch/x86/cpu/quark/irq.c | 49 | ||||
| -rw-r--r-- | arch/x86/cpu/quark/quark.c | 25 |
3 files changed, 50 insertions, 26 deletions
diff --git a/arch/x86/cpu/quark/Makefile b/arch/x86/cpu/quark/Makefile index 8f1d018fb6..6d670d75c1 100644 --- a/arch/x86/cpu/quark/Makefile +++ b/arch/x86/cpu/quark/Makefile @@ -4,5 +4,5 @@ # SPDX-License-Identifier: GPL-2.0+ # -obj-y += car.o dram.o msg_port.o quark.o +obj-y += car.o dram.o irq.o msg_port.o quark.o obj-y += mrc.o mrc_util.o hte.o smc.o diff --git a/arch/x86/cpu/quark/irq.c b/arch/x86/cpu/quark/irq.c new file mode 100644 index 0000000000..1f8f90923d --- /dev/null +++ b/arch/x86/cpu/quark/irq.c @@ -0,0 +1,49 @@ +/* + * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com> + * Copyright (C) 2015 Google, Inc + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <dm.h> +#include <asm/irq.h> +#include <asm/arch/device.h> +#include <asm/arch/quark.h> + +int quark_irq_router_probe(struct udevice *dev) +{ + struct quark_rcba *rcba; + u32 base; + + qrk_pci_read_config_dword(QUARK_LEGACY_BRIDGE, LB_RCBA, &base); + 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); + + return irq_router_common_init(dev); +} + +static const struct udevice_id quark_irq_router_ids[] = { + { .compatible = "intel,quark-irq-router" }, + { } +}; + +U_BOOT_DRIVER(quark_irq_router_drv) = { + .name = "quark_intel_irq", + .id = UCLASS_IRQ, + .of_match = quark_irq_router_ids, + .probe = quark_irq_router_probe, +}; diff --git a/arch/x86/cpu/quark/quark.c b/arch/x86/cpu/quark/quark.c index 28370d1706..6e20930a4d 100644 --- a/arch/x86/cpu/quark/quark.c +++ b/arch/x86/cpu/quark/quark.c @@ -7,12 +7,10 @@ #include <common.h> #include <mmc.h> #include <asm/io.h> -#include <asm/irq.h> #include <asm/mrccache.h> #include <asm/mtrr.h> #include <asm/pci.h> #include <asm/post.h> -#include <asm/processor.h> #include <asm/arch/device.h> #include <asm/arch/msg_port.h> #include <asm/arch/quark.h> @@ -346,29 +344,6 @@ int cpu_mmc_init(bd_t *bis) return pci_mmc_init("Quark SDHCI", mmc_supported); } -void cpu_irq_init(void) -{ - struct quark_rcba *rcba; - u32 base; - - qrk_pci_read_config_dword(QUARK_LEGACY_BRIDGE, LB_RCBA, &base); - 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) { #ifdef CONFIG_ENABLE_MRC_CACHE |