ARM: 5661/1: bcmring: add csp security hardware headers

add csp security hardware headers

Signed-off-by: Leo Chen <leochen@broadcom.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

3 files changed, 244 insertions, 0 deletions

diff --git a/arch/arm/mach-bcmring/include/csp/secHw.h b/arch/arm/mach-bcmring/include/csp/secHw.h
new file mode 100644
index 000000000000..b9d7e0732dfc
--- /dev/null
+++ b/arch/arm/mach-bcmring/include/csp/secHw.h
@@ -0,0 +1,65 @@
+/*****************************************************************************
+* Copyright 2004 - 2008 Broadcom Corporation.  All rights reserved.
+*
+* Unless you and Broadcom execute a separate written software license
+* agreement governing use of this software, this software is licensed to you
+* under the terms of the GNU General Public License version 2, available at
+* http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
+*
+* Notwithstanding the above, under no circumstances may you combine this
+* software in any way with any other Broadcom software provided under a
+* license other than the GPL, without Broadcom's express prior written
+* consent.
+*****************************************************************************/
+
+/****************************************************************************/
+/**
+*  @file    secHw.h
+*
+*  @brief   Definitions for accessing low level security features
+*
+*/
+/****************************************************************************/
+#ifndef SECHW_H
+#define SECHW_H
+
+typedef void (*secHw_FUNC_t) (void);
+
+typedef enum {
+        secHw_MODE_SECURE = 0x0,        /* Switches processor into secure mode */
+        secHw_MODE_NONSECURE = 0x1      /* Switches processor into non-secure mode */
+} secHw_MODE;
+
+/****************************************************************************/
+/**
+*  @brief   Requesting to execute the function in secure mode
+*
+*  This function requests the given function to run in secure mode
+*
+*/
+/****************************************************************************/
+void secHw_RunSecure(secHw_FUNC_t       /* Function to run in secure mode */
+    );
+
+/****************************************************************************/
+/**
+*  @brief   Sets the  mode
+*
+*  his function sets the processor mode (secure/non-secure)
+*
+*/
+/****************************************************************************/
+void secHw_SetMode(secHw_MODE   /* Processor mode */
+    );
+
+/****************************************************************************/
+/**
+*  @brief   Get the current mode
+*
+*  This function retieves the processor mode (secure/non-secure)
+*
+*/
+/****************************************************************************/
+void secHw_GetMode(secHw_MODE *);
+
+#endif /* SECHW_H */
diff --git a/arch/arm/mach-bcmring/include/mach/csp/secHw_def.h b/arch/arm/mach-bcmring/include/mach/csp/secHw_def.h
new file mode 100644
index 000000000000..d15f5f3ec2d8
--- /dev/null
+++ b/arch/arm/mach-bcmring/include/mach/csp/secHw_def.h
@@ -0,0 +1,100 @@
+/*****************************************************************************
+* Copyright 2003 - 2008 Broadcom Corporation.  All rights reserved.
+*
+* Unless you and Broadcom execute a separate written software license
+* agreement governing use of this software, this software is licensed to you
+* under the terms of the GNU General Public License version 2, available at
+* http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
+*
+* Notwithstanding the above, under no circumstances may you combine this
+* software in any way with any other Broadcom software provided under a
+* license other than the GPL, without Broadcom's express prior written
+* consent.
+*****************************************************************************/
+
+/****************************************************************************/
+/**
+*  @file    secHw_def.h
+*
+*  @brief   Definitions for configuring/testing secure blocks
+*
+*  @note
+*     None
+*/
+/****************************************************************************/
+
+#ifndef SECHW_DEF_H
+#define SECHW_DEF_H
+
+#include <mach/csp/mm_io.h>
+
+/* Bit mask for various secure device */
+#define secHw_BLK_MASK_CHIP_CONTROL     0x00000001
+#define secHw_BLK_MASK_KEY_SCAN         0x00000002
+#define secHw_BLK_MASK_TOUCH_SCREEN     0x00000004
+#define secHw_BLK_MASK_UART0            0x00000008
+#define secHw_BLK_MASK_UART1            0x00000010
+#define secHw_BLK_MASK_WATCHDOG         0x00000020
+#define secHw_BLK_MASK_SPUM             0x00000040
+#define secHw_BLK_MASK_DDR2             0x00000080
+#define secHw_BLK_MASK_EXT_MEM          0x00000100
+#define secHw_BLK_MASK_ESW              0x00000200
+#define secHw_BLK_MASK_SPU              0x00010000
+#define secHw_BLK_MASK_PKA              0x00020000
+#define secHw_BLK_MASK_RNG              0x00040000
+#define secHw_BLK_MASK_RTC              0x00080000
+#define secHw_BLK_MASK_OTP              0x00100000
+#define secHw_BLK_MASK_BOOT             0x00200000
+#define secHw_BLK_MASK_MPU              0x00400000
+#define secHw_BLK_MASK_TZCTRL           0x00800000
+#define secHw_BLK_MASK_INTR             0x01000000
+
+/* Trustzone register set */
+typedef struct {
+        volatile uint32_t status;       /* read only - reflects status of writes of 2 write registers */
+        volatile uint32_t setUnsecure;  /* write only. reads back as 0 */
+        volatile uint32_t setSecure;    /* write only. reads back as 0 */
+} secHw_TZREG_t;
+
+/* There are 2 register sets. The first is for the lower 16 bits, the 2nd */
+/* is for the higher 16 bits. */
+
+typedef enum {
+        secHw_IDX_LS = 0,
+        secHw_IDX_MS = 1,
+        secHw_IDX_NUM
+} secHw_IDX_e;
+
+typedef struct {
+        volatile secHw_TZREG_t reg[secHw_IDX_NUM];
+} secHw_REGS_t;
+
+/****************************************************************************/
+/**
+*  @brief  Configures a device as a secure device
+*
+*/
+/****************************************************************************/
+static inline void secHw_setSecure(uint32_t mask        /*  mask of type secHw_BLK_MASK_XXXXXX */
+    );
+
+/****************************************************************************/
+/**
+*  @brief  Configures a device as a non-secure device
+*
+*/
+/****************************************************************************/
+static inline void secHw_setUnsecure(uint32_t mask      /*  mask of type secHw_BLK_MASK_XXXXXX */
+    );
+
+/****************************************************************************/
+/**
+*  @brief  Get the trustzone status for all components. 1 = non-secure, 0 = secure
+*
+*/
+/****************************************************************************/
+static inline uint32_t secHw_getStatus(void);
+
+#include <mach/csp/secHw_inline.h>
+
+#endif /* SECHW_DEF_H */
diff --git a/arch/arm/mach-bcmring/include/mach/csp/secHw_inline.h b/arch/arm/mach-bcmring/include/mach/csp/secHw_inline.h
new file mode 100644
index 000000000000..9cd6a032ab71
--- /dev/null
+++ b/arch/arm/mach-bcmring/include/mach/csp/secHw_inline.h
@@ -0,0 +1,79 @@
+/*****************************************************************************
+* Copyright 2003 - 2008 Broadcom Corporation.  All rights reserved.
+*
+* Unless you and Broadcom execute a separate written software license
+* agreement governing use of this software, this software is licensed to you
+* under the terms of the GNU General Public License version 2, available at
+* http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
+*
+* Notwithstanding the above, under no circumstances may you combine this
+* software in any way with any other Broadcom software provided under a
+* license other than the GPL, without Broadcom's express prior written
+* consent.
+*****************************************************************************/
+
+/****************************************************************************/
+/**
+*  @file    secHw_inline.h
+*
+*  @brief   Definitions for configuring/testing secure blocks
+*
+*  @note
+*     None
+*/
+/****************************************************************************/
+
+#ifndef SECHW_INLINE_H
+#define SECHW_INLINE_H
+
+/****************************************************************************/
+/**
+*  @brief  Configures a device as a secure device
+*
+*/
+/****************************************************************************/
+static inline void secHw_setSecure(uint32_t mask        /*  mask of type secHw_BLK_MASK_XXXXXX */
+    ) {
+        secHw_REGS_t *regp = (secHw_REGS_t *) MM_IO_BASE_TZPC;
+
+        if (mask & 0x0000FFFF) {
+                regp->reg[secHw_IDX_LS].setSecure = mask & 0x0000FFFF;
+        }
+
+        if (mask & 0xFFFF0000) {
+                regp->reg[secHw_IDX_MS].setSecure = mask >> 16;
+        }
+}
+
+/****************************************************************************/
+/**
+*  @brief  Configures a device as a non-secure device
+*
+*/
+/****************************************************************************/
+static inline void secHw_setUnsecure(uint32_t mask      /*  mask of type secHw_BLK_MASK_XXXXXX */
+    ) {
+        secHw_REGS_t *regp = (secHw_REGS_t *) MM_IO_BASE_TZPC;
+
+        if (mask & 0x0000FFFF) {
+                regp->reg[secHw_IDX_LS].setUnsecure = mask & 0x0000FFFF;
+        }
+        if (mask & 0xFFFF0000) {
+                regp->reg[secHw_IDX_MS].setUnsecure = mask >> 16;
+        }
+}
+
+/****************************************************************************/
+/**
+*  @brief  Get the trustzone status for all components. 1 = non-secure, 0 = secure
+*
+*/
+/****************************************************************************/
+static inline uint32_t secHw_getStatus(void)
+{
+        secHw_REGS_t *regp = (secHw_REGS_t *) MM_IO_BASE_TZPC;
+
+        return (regp->reg[1].status << 16) + regp->reg[0].status;
+}
+
+#endif /* SECHW_INLINE_H */