[RFC PATCH v2 1/9] mailbox: Add Amlogic Meson Message-Handling-Unit
From: jassisinghbrar@gmail.com (Jassi Brar)
Date: 2016-06-22 04:31:43
Also in:
linux-amlogic, lkml
On Tue, Jun 21, 2016 at 3:32 PM, Neil Armstrong [off-list ref] wrote:
Add Amlogic Meson SoCs Message-Handling-Unit as mailbox controller with 2 independent channels/links to communicate with a remote processor. Signed-off-by: Neil Armstrong <redacted>
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quoted hunk ↗ jump to hunk
+++ b/drivers/mailbox/meson_mhu.c@@ -0,0 +1,199 @@ +/* + * Copyright (C) 2016 BayLibre SAS. + * Author: Neil Armstrong <narmstrong@baylibre.com> + * Heavily based on meson_mhu.c from : + * Copyright (C) 2013-2015 Fujitsu Semiconductor Ltd. + * Copyright (C) 2015 Linaro Ltd. + * Author: Jassi Brar <jaswinder.singh@linaro.org>
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+ +#define INTR_SET_OFS 0x0 +#define INTR_STAT_OFS 0x4 +#define INTR_CLR_OFS 0x8 + +#define MHU_LP_OFFSET 0x10 +#define MHU_HP_OFFSET 0x1c + +#define TX_REG_OFFSET 0x24 +
It seems only some register offsets have changed from arm_mhu. So maybe just adapt the arm_mhu driver to look for IP variant and assign corresponding offsets to set,stat,clr registers. Cheers.