From d9b3869602476929e52e73ee3bc5c4e1aaf4d900 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Thu, 11 Jan 2024 15:15:38 -0800 Subject: dt-bindings: bus: Document Broadcom GISB arbiter 74165 compatible The 74165 chip introduces a new layout for the GISB arbiter which is not identical to previous chips, document the new compatible that we are going to key off. Link: https://lore.kernel.org/r/20240111231539.783785-2-florian.fainelli@broadcom.com Signed-off-by: Florian Fainelli Acked-by: Krzysztof Kozlowski --- Documentation/devicetree/bindings/bus/brcm,gisb-arb.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/bus/brcm,gisb-arb.yaml b/Documentation/devicetree/bindings/bus/brcm,gisb-arb.yaml index 3aaefdbe361e..9017c5a3f3d2 100644 --- a/Documentation/devicetree/bindings/bus/brcm,gisb-arb.yaml +++ b/Documentation/devicetree/bindings/bus/brcm,gisb-arb.yaml @@ -18,6 +18,7 @@ properties: - const: brcm,gisb-arb - items: - enum: + - brcm,bcm74165-gisb-arb # for V7 new style 16nm chips - brcm,bcm7278-gisb-arb # for V7 28nm chips - brcm,bcm7435-gisb-arb # for newer 40nm chips - brcm,bcm7400-gisb-arb # for older 40nm chips and all 65nm chips -- cgit v1.2.3 From 86964bb62a9334acfebd869ca8ffc184dc365b75 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Thu, 11 Jan 2024 15:15:39 -0800 Subject: bus: brcmstb_gisb: Added support for 74165 register layout BCM74165 introduces a new register layout which is different from previously taped out chips, match the documented compatible and use the appropriate table of register offsets. Link: https://lore.kernel.org/r/20240111231539.783785-3-florian.fainelli@broadcom.com Signed-off-by: Florian Fainelli --- drivers/bus/brcmstb_gisb.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/bus/brcmstb_gisb.c b/drivers/bus/brcmstb_gisb.c index b6dfe4340da2..65ae758f3194 100644 --- a/drivers/bus/brcmstb_gisb.c +++ b/drivers/bus/brcmstb_gisb.c @@ -96,6 +96,20 @@ static const int gisb_offsets_bcm7400[] = { [ARB_ERR_CAP_MASTER] = 0x0d8, }; +static const int gisb_offsets_bcm74165[] = { + [ARB_TIMER] = 0x008, + [ARB_BP_CAP_CLR] = 0x044, + [ARB_BP_CAP_HI_ADDR] = -1, + [ARB_BP_CAP_ADDR] = 0x048, + [ARB_BP_CAP_STATUS] = 0x058, + [ARB_BP_CAP_MASTER] = 0x05c, + [ARB_ERR_CAP_CLR] = 0x038, + [ARB_ERR_CAP_HI_ADDR] = -1, + [ARB_ERR_CAP_ADDR] = 0x020, + [ARB_ERR_CAP_STATUS] = 0x030, + [ARB_ERR_CAP_MASTER] = 0x034, +}; + static const int gisb_offsets_bcm7435[] = { [ARB_TIMER] = 0x00c, [ARB_BP_CAP_CLR] = 0x014, @@ -393,6 +407,7 @@ static const struct of_device_id brcmstb_gisb_arb_of_match[] = { { .compatible = "brcm,bcm7400-gisb-arb", .data = gisb_offsets_bcm7400 }, { .compatible = "brcm,bcm7278-gisb-arb", .data = gisb_offsets_bcm7278 }, { .compatible = "brcm,bcm7038-gisb-arb", .data = gisb_offsets_bcm7038 }, + { .compatible = "brcm,bcm74165-gisb-arb", .data = gisb_offsets_bcm74165 }, { }, }; -- cgit v1.2.3