ARM: ls102xa: allow all the peripheral access permission as R/W.

The Central Security Unit (CSU) allows secure world software to
change the default access control policies of peripherals/bus
slaves, determining which bus masters may access them. This
allows peripherals to be separated into distinct security domains.
Combined with SMMU configuration of the system masters privileges,
these features provide protection against indirect unauthorized
access to data.

For now we configure all the peripheral access permissions as R/W.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>

2 files changed, 119 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-ls102xa/config.h b/arch/arm/include/asm/arch-ls102xa/config.h
index 0533a83..5e934da 100644
--- a/arch/arm/include/asm/arch-ls102xa/config.h
+++ b/arch/arm/include/asm/arch-ls102xa/config.h
@@ -21,6 +21,7 @@
 
 #define CONFIG_SYS_FSL_DDR_ADDR			(CONFIG_SYS_IMMR + 0x00080000)
 #define CONFIG_SYS_CCI400_ADDR			(CONFIG_SYS_IMMR + 0x00180000)
+#define CONFIG_SYS_FSL_CSU_ADDR                 (CONFIG_SYS_IMMR + 0x00510000)
 #define CONFIG_SYS_IFC_ADDR			(CONFIG_SYS_IMMR + 0x00530000)
 #define CONFIG_SYS_FSL_ESDHC_ADDR		(CONFIG_SYS_IMMR + 0x00560000)
 #define CONFIG_SYS_FSL_SCFG_ADDR		(CONFIG_SYS_IMMR + 0x00570000)
diff --git a/arch/arm/include/asm/arch-ls102xa/ns_access.h b/arch/arm/include/asm/arch-ls102xa/ns_access.h
new file mode 100644
index 0000000..b53f699
--- /dev/null
+++ b/arch/arm/include/asm/arch-ls102xa/ns_access.h
@@ -0,0 +1,118 @@
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __FSL_NS_ACCESS_H_
+#define __FSL_NS_ACCESS_H_
+
+enum csu_cslx_access {
+	CSU_NS_SUP_R = 0x08,
+	CSU_NS_SUP_W = 0x80,
+	CSU_NS_SUP_RW = 0x88,
+	CSU_NS_USER_R = 0x04,
+	CSU_NS_USER_W = 0x40,
+	CSU_NS_USER_RW = 0x44,
+	CSU_S_SUP_R = 0x02,
+	CSU_S_SUP_W = 0x20,
+	CSU_S_SUP_RW = 0x22,
+	CSU_S_USER_R = 0x01,
+	CSU_S_USER_W = 0x10,
+	CSU_S_USER_RW = 0x11,
+	CSU_ALL_RW = 0xff,
+};
+
+enum csu_cslx_ind {
+	CSU_CSLX_PCIE2_IO = 0,
+	CSU_CSLX_PCIE1_IO,
+	CSU_CSLX_MG2TPR_IP,
+	CSU_CSLX_IFC_MEM,
+	CSU_CSLX_OCRAM,
+	CSU_CSLX_GIC,
+	CSU_CSLX_PCIE1,
+	CSU_CSLX_OCRAM2,
+	CSU_CSLX_QSPI_MEM,
+	CSU_CSLX_PCIE2,
+	CSU_CSLX_SATA,
+	CSU_CSLX_USB3,
+	CSU_CSLX_SERDES = 32,
+	CSU_CSLX_QDMA,
+	CSU_CSLX_LPUART2,
+	CSU_CSLX_LPUART1,
+	CSU_CSLX_LPUART4,
+	CSU_CSLX_LPUART3,
+	CSU_CSLX_LPUART6,
+	CSU_CSLX_LPUART5,
+	CSU_CSLX_DSPI2 = 40,
+	CSU_CSLX_DSPI1,
+	CSU_CSLX_QSPI,
+	CSU_CSLX_ESDHC,
+	CSU_CSLX_2D_ACE,
+	CSU_CSLX_IFC,
+	CSU_CSLX_I2C1,
+	CSU_CSLX_USB2,
+	CSU_CSLX_I2C3,
+	CSU_CSLX_I2C2,
+	CSU_CSLX_DUART2 = 50,
+	CSU_CSLX_DUART1,
+	CSU_CSLX_WDT2,
+	CSU_CSLX_WDT1,
+	CSU_CSLX_EDMA,
+	CSU_CSLX_SYS_CNT,
+	CSU_CSLX_DMA_MUX2,
+	CSU_CSLX_DMA_MUX1,
+	CSU_CSLX_DDR,
+	CSU_CSLX_QUICC,
+	CSU_CSLX_DCFG_CCU_RCPM = 60,
+	CSU_CSLX_SECURE_BOOTROM,
+	CSU_CSLX_SFP,
+	CSU_CSLX_TMU,
+	CSU_CSLX_SECURE_MONITOR,
+	CSU_CSLX_RESERVED0,
+	CSU_CSLX_ETSEC1,
+	CSU_CSLX_SEC5_5,
+	CSU_CSLX_ETSEC3,
+	CSU_CSLX_ETSEC2,
+	CSU_CSLX_GPIO2 = 70,
+	CSU_CSLX_GPIO1,
+	CSU_CSLX_GPIO4,
+	CSU_CSLX_GPIO3,
+	CSU_CSLX_PLATFORM_CONT,
+	CSU_CSLX_CSU,
+	CSU_CSLX_ASRC,
+	CSU_CSLX_SPDIF,
+	CSU_CSLX_FLEXCAN2,
+	CSU_CSLX_FLEXCAN1,
+	CSU_CSLX_FLEXCAN4 = 80,
+	CSU_CSLX_FLEXCAN3,
+	CSU_CSLX_SAI2,
+	CSU_CSLX_SAI1,
+	CSU_CSLX_SAI4,
+	CSU_CSLX_SAI3,
+	CSU_CSLX_FTM2,
+	CSU_CSLX_FTM1,
+	CSU_CSLX_FTM4,
+	CSU_CSLX_FTM3,
+	CSU_CSLX_FTM6 = 90,
+	CSU_CSLX_FTM5,
+	CSU_CSLX_FTM8,
+	CSU_CSLX_FTM7,
+	CSU_CSLX_COP_DCSR,
+	CSU_CSLX_EPU,
+	CSU_CSLX_GDI,
+	CSU_CSLX_DDI,
+	CSU_CSLX_RESERVED1,
+	CSU_CSLX_USB3_PHY = 117,
+	CSU_CSLX_RESERVED2,
+	CSU_CSLX_MAX,
+};
+
+struct csu_ns_dev {
+	unsigned long ind;
+	uint32_t val;
+};
+
+void enable_devices_ns_access(struct csu_ns_dev *ns_dev, uint32_t num);
+
+#endif