Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
|
|
/***************************************************************************
|
|
* Registers and bits for amccs5933 pci chip
|
|
* copyright : (C) 2002 by Frank Mori Hess
|
|
***************************************************************************/
|
|
|
|
// register offsets
|
|
enum {
|
|
MBEF_REG = 0x34, // mailbux empty/full
|
|
INTCSR_REG = 0x38, // interrupt control and status
|
|
BMCSR_REG = 0x3c, // bus master control and status
|
|
};
|
|
|
|
// incoming mailbox 0-3 register offsets
|
|
extern inline int INCOMING_MAILBOX_REG(unsigned int mailbox)
|
|
{
|
|
return (0x10 + 4 * mailbox);
|
|
};
|
|
|
|
// bit definitions
|
|
|
|
// INTCSR bits
|
|
enum {
|
|
OUTBOX_EMPTY_INTR_BIT = 0x10, // enable outbox empty interrupt
|
|
INBOX_FULL_INTR_BIT = 0x1000, // enable inbox full interrupt
|
|
INBOX_INTR_CS_BIT = 0x20000, // read, or write clear inbox full interrupt
|
|
INTR_ASSERTED_BIT = 0x800000, // read only, interrupt asserted
|
|
};
|
|
|
|
// select byte 0 to 3 of incoming mailbox
|
|
extern inline int INBOX_BYTE_BITS(unsigned int byte)
|
|
{
|
|
return (byte & 0x3) << 8;
|
|
};
|
|
|
|
// select incoming mailbox 0 to 3
|
|
extern inline int INBOX_SELECT_BITS(unsigned int mailbox)
|
|
{
|
|
return (mailbox & 0x3) << 10;
|
|
};
|
|
|
|
// select byte 0 to 3 of outgoing mailbox
|
|
extern inline int OUTBOX_BYTE_BITS(unsigned int byte)
|
|
{
|
|
return (byte & 0x3);
|
|
};
|
|
|
|
// select outgoing mailbox 0 to 3
|
|
extern inline int OUTBOX_SELECT_BITS(unsigned int mailbox)
|
|
{
|
|
return (mailbox & 0x3) << 2;
|
|
};
|
|
|
|
// BMCSR bits
|
|
enum {
|
|
MBOX_FLAGS_RESET_BIT = 0x08000000, // resets mailbox empty/full flags
|
|
};
|
|
|