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mailbox: omap: Add support for TI K3 SoCs

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The TI K3 AM65x and J721E family of SoCs have a new Mailbox IP that
is based on the existing Mailbox IP present in OMAP architecture based
SoCs. Each instance of the legacy OMAP Mailbox IP is now a single cluster
within the newer Mailbox IP instance on K3 architecture based SoCs. A
single K3 Mailbox IP instance has multiple clusters with each cluster
providing the same functionality as the existing OMAP Mailbox IP.

Reuse the existing OMAP Mailbox driver to extend the support for this
newer IP present within the Main NavSS block on K3 SoCs. The K3 family
of SoCs use 64-bit ARMv8 processors for running Linux, so the driver is
also enhanced to deal with the differences between the 32-bit message
payloads and the 64-bit pointers used by the client drivers.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
This commit is contained in:
Suman Anna
2019-06-04 12:01:46 -05:00
committed by Jassi Brar
parent 8c665292ec
commit 9c1f2a5dc2
3 changed files with 30 additions and 19 deletions
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4
include/linux/omap-mailbox.h
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@@ -6,7 +6,9 @@
#ifndef OMAP_MAILBOX_H
#define OMAP_MAILBOX_H
typedef u32 mbox_msg_t;
typedef uintptr_t mbox_msg_t;
#define omap_mbox_message(data) (u32)(mbox_msg_t)(data)
typedef int __bitwise omap_mbox_irq_t;
#define IRQ_TX ((__force omap_mbox_irq_t) 1)