From d774da08dcd6277d4b24092ccde9ba536504a7a8 Mon Sep 17 00:00:00 2001 From: Nicolas Saenz Julienne Date: Mon, 29 Jun 2020 18:37:22 +0200 Subject: arm: rpi: Add function to trigger VL805's firmware load On the Raspberry Pi 4, after a PCI reset, VL805's (a xHCI chip) firmware may either be loaded directly from an EEPROM or, if not present, by the SoC's VideCore (the SoC's co-processor). Introduce the function that informs VideCore that VL805 may need its firmware loaded. Signed-off-by: Nicolas Saenz Julienne Signed-off-by: Matthias Brugger --- arch/arm/mach-bcm283x/include/mach/mbox.h | 13 +++++++++++++ arch/arm/mach-bcm283x/include/mach/msg.h | 7 +++++++ 2 files changed, 20 insertions(+) (limited to 'arch/arm/mach-bcm283x/include') diff --git a/arch/arm/mach-bcm283x/include/mach/mbox.h b/arch/arm/mach-bcm283x/include/mach/mbox.h index 60e226ce1d..2ae2d3d97c 100644 --- a/arch/arm/mach-bcm283x/include/mach/mbox.h +++ b/arch/arm/mach-bcm283x/include/mach/mbox.h @@ -491,6 +491,19 @@ struct bcm2835_mbox_tag_set_palette { } body; }; +#define BCM2835_MBOX_TAG_NOTIFY_XHCI_RESET 0x00030058 + +struct bcm2835_mbox_tag_pci_dev_addr { + struct bcm2835_mbox_tag_hdr tag_hdr; + union { + struct { + u32 dev_addr; + } req; + struct { + } resp; + } body; +}; + /* * Pass a raw u32 message to the VC, and receive a raw u32 back. * diff --git a/arch/arm/mach-bcm283x/include/mach/msg.h b/arch/arm/mach-bcm283x/include/mach/msg.h index 4afb08631b..e45c1bf010 100644 --- a/arch/arm/mach-bcm283x/include/mach/msg.h +++ b/arch/arm/mach-bcm283x/include/mach/msg.h @@ -48,4 +48,11 @@ int bcm2835_set_video_params(int *widthp, int *heightp, int depth_bpp, int pixel_order, int alpha_mode, ulong *fb_basep, ulong *fb_sizep, int *pitchp); +/** + * bcm2711_load_vl805_firmware() - get vl805's firmware loaded + * + * @return 0 if OK, -EIO on error + */ +int bcm2711_notify_vl805_reset(void); + #endif -- cgit