linux-kernel - [PATCH 3/4] add code to enable XOR and CRYPTO engines on mv78xx0

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Message-Id: <20230317154411.3727514-3-jeremy@jeremypeper.com>
Date:   Fri, 17 Mar 2023 10:43:46 -0500
From:   "Jeremy J. Peper" <jeremy@...emypeper.com>
To:     linux-kernel@...r.kernel.org, arnd@...nel.org
Cc:     "Jeremy J . Peper" <jeremy@...emypeper.com>,
        Andrew Lunn <andrew@...n.ch>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 3/4] add code to enable XOR and CRYPTO engines on mv78xx0

Adding missing code/values required to enable the XOR and CESA engines for this SoC

Signed-off-by: Jeremy J. Peper <jeremy@...emypeper.com>
---
 arch/arm/mach-mv78xx0/buffalo-wxl-setup.c |  2 ++
 arch/arm/mach-mv78xx0/common.c            | 23 +++++++++++++++++++++++
 arch/arm/mach-mv78xx0/common.h            |  2 ++
 arch/arm/mach-mv78xx0/mv78xx0.h           | 10 ++++++++++
 4 files changed, 37 insertions(+)

diff --git a/arch/arm/mach-mv78xx0/buffalo-wxl-setup.c b/arch/arm/mach-mv78xx0/buffalo-wxl-setup.c
index c3f6dc351..31359f586 100644
--- a/arch/arm/mach-mv78xx0/buffalo-wxl-setup.c
+++ b/arch/arm/mach-mv78xx0/buffalo-wxl-setup.c
@@ -119,6 +119,8 @@ static void __init wxl_init(void)
 	mv78xx0_uart1_init();
 	mv78xx0_uart2_init();
 	mv78xx0_uart3_init();
+	mv78xx0_xor_init();
+	mv78xx0_crypto_init();
 	mv78xx0_i2c_init();
 	i2c_register_board_info(0, &db78x00_i2c_rtc, 1);
 }
diff --git a/arch/arm/mach-mv78xx0/common.c b/arch/arm/mach-mv78xx0/common.c
index 461a68945..679753fcc 100644
--- a/arch/arm/mach-mv78xx0/common.c
+++ b/arch/arm/mach-mv78xx0/common.c
@@ -342,6 +342,29 @@ void __ref mv78xx0_timer_init(void)
 			IRQ_MV78XX0_TIMER_1, get_tclk());
 }
 
+/****************************************************************************
+* XOR engine
+****************************************************************************/
+void __init mv78xx0_xor_init(void)
+{
+	orion_xor0_init(XOR_PHYS_BASE,
+		XOR_PHYS_BASE + 0x200,
+		IRQ_MV78XX0_XOR_0, IRQ_MV78XX0_XOR_1);
+}
+
+/****************************************************************************
+ * Cryptographic Engines and Security Accelerator (CESA)
+****************************************************************************/
+void __init mv78xx0_crypto_init(void)
+{
+	mvebu_mbus_add_window_by_id(MV78XX0_MBUS_SRAM_TARGET,
+				MV78XX0_MBUS_SRAM_ATTR,
+				MV78XX0_SRAM_PHYS_BASE,
+			MV78XX0_SRAM_SIZE);
+	orion_crypto_init(CRYPTO_PHYS_BASE, MV78XX0_SRAM_PHYS_BASE,
+		SZ_8K, IRQ_MV78XX0_CRYPTO);
+}
+
 
 /*****************************************************************************
  * General
diff --git a/arch/arm/mach-mv78xx0/common.h b/arch/arm/mach-mv78xx0/common.h
index d8c6c2400..9f1dfd595 100644
--- a/arch/arm/mach-mv78xx0/common.h
+++ b/arch/arm/mach-mv78xx0/common.h
@@ -43,6 +43,8 @@ void mv78xx0_uart0_init(void);
 void mv78xx0_uart1_init(void);
 void mv78xx0_uart2_init(void);
 void mv78xx0_uart3_init(void);
+void mv78xx0_xor_init(void);
+void mv78xx0_crypto_init(void);
 void mv78xx0_i2c_init(void);
 void mv78xx0_restart(enum reboot_mode, const char *);
 
diff --git a/arch/arm/mach-mv78xx0/mv78xx0.h b/arch/arm/mach-mv78xx0/mv78xx0.h
index 3f19bef7d..88efb1e44 100644
--- a/arch/arm/mach-mv78xx0/mv78xx0.h
+++ b/arch/arm/mach-mv78xx0/mv78xx0.h
@@ -49,9 +49,15 @@
 #define MV78XX0_REGS_VIRT_BASE		IOMEM(0xfec00000)
 #define MV78XX0_REGS_SIZE		SZ_1M
 
+#define MV78XX0_SRAM_PHYS_BASE          (0xf2200000)
+#define MV78XX0_SRAM_SIZE               SZ_8K
+
 #define MV78XX0_PCIE_MEM_PHYS_BASE	0xc0000000
 #define MV78XX0_PCIE_MEM_SIZE		0x30000000
 
+#define MV78XX0_MBUS_SRAM_TARGET       0x09
+#define MV78XX0_MBUS_SRAM_ATTR         0x00
+
 /*
  * Core-specific peripheral registers.
  */
@@ -98,6 +104,8 @@
 #define USB1_PHYS_BASE		(MV78XX0_REGS_PHYS_BASE + 0x51000)
 #define USB2_PHYS_BASE		(MV78XX0_REGS_PHYS_BASE + 0x52000)
 
+#define XOR_PHYS_BASE		(MV78XX0_REGS_PHYS_BASE + 0x60900)
+
 #define GE00_PHYS_BASE		(MV78XX0_REGS_PHYS_BASE + 0x70000)
 #define GE01_PHYS_BASE		(MV78XX0_REGS_PHYS_BASE + 0x74000)
 
@@ -106,6 +114,8 @@
 #define PCIE12_VIRT_BASE	(MV78XX0_REGS_VIRT_BASE + 0x88000)
 #define PCIE13_VIRT_BASE	(MV78XX0_REGS_VIRT_BASE + 0x8c000)
 
+#define CRYPTO_PHYS_BASE	(MV78XX0_REGS_PHYS_BASE + 0x90000)
+
 #define SATA_PHYS_BASE		(MV78XX0_REGS_PHYS_BASE + 0xa0000)
 
 /*
-- 
2.30.2