linux-kernel - [PATCH RFT net-next 03/10] soc: sunxi: sram: add entry for a523

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Message-Id: <20250701165756.258356-4-wens@kernel.org>
Date: Wed,  2 Jul 2025 00:57:49 +0800
From: Chen-Yu Tsai <wens@...nel.org>
To: Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen-Yu Tsai <wens@...e.org>,
	Jernej Skrabec <jernej@...nel.org>,
	Samuel Holland <samuel@...lland.org>
Cc: netdev@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-sunxi@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	Andre Przywara <andre.przywara@....com>
Subject: [PATCH RFT net-next 03/10] soc: sunxi: sram: add entry for a523

From: Chen-Yu Tsai <wens@...e.org>

The A523 has two Ethernet controllers. So in the system controller
address space, there are two registers for Ethernet clock delays,
one for each controller.

Add a new entry for the A523 system controller that allows access to
the second register.

Signed-off-by: Chen-Yu Tsai <wens@...e.org>
---
 drivers/soc/sunxi/sunxi_sram.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/soc/sunxi/sunxi_sram.c b/drivers/soc/sunxi/sunxi_sram.c
index 08e264ea0697..4f8d510b7e1e 100644
--- a/drivers/soc/sunxi/sunxi_sram.c
+++ b/drivers/soc/sunxi/sunxi_sram.c
@@ -320,6 +320,10 @@ static const struct sunxi_sramc_variant sun50i_h616_sramc_variant = {
 	.has_ths_offset = true,
 };
 
+static const struct sunxi_sramc_variant sun55i_a523_sramc_variant = {
+	.num_emac_clocks = 2,
+};
+
 #define SUNXI_SRAM_THS_OFFSET_REG	0x0
 #define SUNXI_SRAM_EMAC_CLOCK_REG	0x30
 #define SUNXI_SYS_LDO_CTRL_REG		0x150
@@ -440,6 +444,10 @@ static const struct of_device_id sunxi_sram_dt_match[] = {
 		.compatible = "allwinner,sun50i-h616-system-control",
 		.data = &sun50i_h616_sramc_variant,
 	},
+	{
+		.compatible = "allwinner,sun55i-a523-system-control",
+		.data = &sun55i_a523_sramc_variant,
+	},
 	{ },
 };
 MODULE_DEVICE_TABLE(of, sunxi_sram_dt_match);
-- 
2.39.5