diff options
Diffstat (limited to 'qemu/roms/u-boot/arch/powerpc/cpu/ppc4xx/usb.c')
| -rw-r--r-- | qemu/roms/u-boot/arch/powerpc/cpu/ppc4xx/usb.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/arch/powerpc/cpu/ppc4xx/usb.c b/qemu/roms/u-boot/arch/powerpc/cpu/ppc4xx/usb.c new file mode 100644 index 000000000..16b44ccea --- /dev/null +++ b/qemu/roms/u-boot/arch/powerpc/cpu/ppc4xx/usb.c @@ -0,0 +1,45 @@ +/* + * (C) Copyright 2007 + * Markus Klotzbuecher, DENX Software Engineering <mk@denx.de> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> + +#if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) + +#ifdef CONFIG_4xx_DCACHE +#include <asm/mmu.h> +DECLARE_GLOBAL_DATA_PTR; +#endif + +int usb_cpu_init(void) +{ +#ifdef CONFIG_4xx_DCACHE + /* disable cache */ + change_tlb(gd->bd->bi_memstart, gd->bd->bi_memsize, TLB_WORD2_I_ENABLE); +#endif + + return 0; +} + +int usb_cpu_stop(void) +{ +#ifdef CONFIG_4xx_DCACHE + /* enable cache */ + change_tlb(gd->bd->bi_memstart, gd->bd->bi_memsize, 0); +#endif + return 0; +} + +int usb_cpu_init_fail(void) +{ +#ifdef CONFIG_4xx_DCACHE + /* enable cache */ + change_tlb(gd->bd->bi_memstart, gd->bd->bi_memsize, 0); +#endif + return 0; +} + +#endif /* defined(CONFIG_USB_OHCI) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) */ |