linux-kernel - [PATCH v2 09/10] reset: Add Actions Semi S700 SoC Reset Management Unit support

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Date:   Wed,  1 Aug 2018 09:09:14 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     p.zabel@...gutronix.de, mturquette@...libre.com, sboyd@...nel.org,
        afaerber@...e.de, robh+dt@...nel.org, lee.jones@...aro.org,
        arnd@...db.de
Cc:     linux-clk@...r.kernel.org, liuwei@...ions-semi.com,
        mp-cs@...ions-semi.com, 96boards@...obotics.com,
        devicetree@...r.kernel.org, daniel.thompson@...aro.org,
        amit.kucheria@...aro.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, hzhang@...obotics.com,
        bdong@...obotics.com, manivannanece23@...il.com,
        thomas.liau@...ions-semi.com, jeff.chen@...ions-semi.com,
        pn@...x.de, edgar.righi@...tec.org.br, sravanhome@...il.com,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Subject: [PATCH v2 09/10] reset: Add Actions Semi S700 SoC Reset Management Unit support

Add Reset Management Unit (RMU) support for Actions Semi S700 SoC
of the Owl family series. RMU belongs to the Owl SoCs system-controller
which also includes CMU (Clock Management Unit).

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
---
 drivers/reset/reset-owl.c | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/drivers/reset/reset-owl.c b/drivers/reset/reset-owl.c
index c4f07691fb36..2e761c64f81b 100644
--- a/drivers/reset/reset-owl.c
+++ b/drivers/reset/reset-owl.c
@@ -12,6 +12,7 @@
 #include <linux/reset-controller.h>
 
 #include <dt-bindings/reset/actions,s900-rmu.h>
+#include <dt-bindings/reset/actions,s700-rmu.h>
 
 #define CMU_DEVRST0 0x00a8
 #define CMU_DEVRST1 0x00ac
@@ -84,11 +85,42 @@ static const struct owl_reset_map s900_resets[] = {
 	[S900_RESET_I2C3]		= { CMU_DEVRST1, BIT(19) },
 };
 
+static const struct owl_reset_map s700_resets[] = {
+	[S700_RESET_DE]      = { CMU_DEVRST0, BIT(0) },
+	[S700_RESET_LCD0]    = { CMU_DEVRST0, BIT(1) },
+	[S700_RESET_DSI]     = { CMU_DEVRST0, BIT(2) },
+	[S700_RESET_CSI]     = { CMU_DEVRST0, BIT(13) },
+	[S700_RESET_SI]      = { CMU_DEVRST0, BIT(14) },
+	[S700_RESET_I2C0]    = { CMU_DEVRST1, BIT(0) },
+	[S700_RESET_I2C1]    = { CMU_DEVRST1, BIT(1) },
+	[S700_RESET_I2C2]    = { CMU_DEVRST1, BIT(2) },
+	[S700_RESET_I2C3]    = { CMU_DEVRST1, BIT(3) },
+	[S700_RESET_SPI0]    = { CMU_DEVRST1, BIT(4) },
+	[S700_RESET_SPI1]    = { CMU_DEVRST1, BIT(5) },
+	[S700_RESET_SPI2]    = { CMU_DEVRST1, BIT(6) },
+	[S700_RESET_SPI3]    = { CMU_DEVRST1, BIT(7) },
+	[S700_RESET_UART0]   = { CMU_DEVRST1, BIT(8) },
+	[S700_RESET_UART1]   = { CMU_DEVRST1, BIT(9) },
+	[S700_RESET_UART2]   = { CMU_DEVRST1, BIT(10) },
+	[S700_RESET_UART3]   = { CMU_DEVRST1, BIT(11) },
+	[S700_RESET_UART4]   = { CMU_DEVRST1, BIT(12) },
+	[S700_RESET_UART5]   = { CMU_DEVRST1, BIT(13) },
+	[S700_RESET_UART6]   = { CMU_DEVRST1, BIT(14) },
+	[S700_RESET_KEY]     = { CMU_DEVRST1, BIT(24) },
+	[S700_RESET_GPIO]    = { CMU_DEVRST1, BIT(25) },
+	[S700_RESET_AUDIO]   = { CMU_DEVRST1, BIT(29) },
+};
+
 static const struct owl_reset_hw s900_reset_hw = {
 	.resets = s900_resets,
 	.num_resets = ARRAY_SIZE(s900_resets),
 };
 
+static const struct owl_reset_hw s700_reset_hw = {
+	.resets = s700_resets,
+	.num_resets = ARRAY_SIZE(s700_resets),
+};
+
 static inline struct owl_reset *to_owl_reset(struct reset_controller_dev *rcdev)
 {
 	return container_of(rcdev, struct owl_reset, rcdev);
@@ -179,6 +211,7 @@ static int owl_reset_probe(struct platform_device *pdev)
 
 static const struct of_device_id owl_reset_of_match[] = {
 	{ .compatible = "actions,s900-rmu", .data = &s900_reset_hw },
+	{ .compatible = "actions,s700-rmu", .data = &s700_reset_hw },
 	{ /* sentinel */ }
 };
 
-- 
2.17.1