plat: imx8m: Add basic rdc module init driver

Add the basic support for RDC init/config driver,
this module driver can be enhanced more if necessary.

Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Change-Id: I290dc378d0d85671435f9de46d5aa790b4e006c8

diff --git a/plat/imx/imx8m/imx8mm/imx8mm_bl31_setup.c b/plat/imx/imx8m/imx8mm/imx8mm_bl31_setup.c
index 63d9223a2bd0255157bbace24c89f013ed255649..c3cd0d0cb9540f94ec08d9820494528a5b4e89c3 100644 (file)
--- a/plat/imx/imx8m/imx8mm/imx8mm_bl31_setup.c
+++ b/plat/imx/imx8m/imx8mm/imx8mm_bl31_setup.c
@@ -24,6 +24,7 @@
 #include <gpc.h>
 #include <imx_aipstz.h>
 #include <imx_uart.h>
+#include <imx_rdc.h>
 #include <imx8m_caam.h>
 #include <plat_imx8.h>
 
@@ -41,6 +42,18 @@ static const struct aipstz_cfg aipstz[] = {
        {0},
 };
 
+static const struct imx_rdc_cfg rdc[] = {
+       /* Master domain assignment */
+       RDC_MDAn(0x1, DID1),
+
+       /* peripherals domain permission */
+
+       /* memory region */
+
+       /* Sentinel */
+       {0},
+};
+
 static entry_point_info_t bl32_image_ep_info;
 static entry_point_info_t bl33_image_ep_info;
 
@@ -94,6 +107,8 @@ void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
 
        imx_aipstz_init(aipstz);
 
+       imx_rdc_init(rdc);
+
        imx8m_caam_init();
 
        console_imx_uart_register(IMX_BOOT_UART_BASE, IMX_BOOT_UART_CLK_IN_HZ,

diff --git a/plat/imx/imx8m/imx8mm/platform.mk b/plat/imx/imx8m/imx8mm/platform.mk
index c28463b7c5fc845f0d68a533c888ed2b27858103..6d32dbba32bd2c00d151c67bdfe7db8d0f1e4817 100644 (file)
--- a/plat/imx/imx8m/imx8mm/platform.mk
+++ b/plat/imx/imx8m/imx8mm/platform.mk
@@ -20,6 +20,7 @@ IMX_GIC_SOURCES               :=      drivers/arm/gic/v3/gicv3_helpers.c      \
 BL31_SOURCES           +=      plat/imx/common/imx8_helpers.S                  \
                                plat/imx/imx8m/gpc_common.c                     \
                                plat/imx/imx8m/imx_aipstz.c                     \
+                               plat/imx/imx8m/imx_rdc.c                        \
                                plat/imx/imx8m/imx8m_caam.c                     \
                                plat/imx/imx8m/imx8m_psci_common.c              \
                                plat/imx/imx8m/imx8mm/imx8mm_bl31_setup.c       \

diff --git a/plat/imx/imx8m/imx_rdc.c b/plat/imx/imx8m/imx_rdc.c
new file mode 100644 (file)
index 0000000..85de191
--- /dev/null
+++ b/plat/imx/imx8m/imx_rdc.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2019, NXP. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <lib/mmio.h>
+
+#include <imx_rdc.h>
+
+void imx_rdc_init(const struct imx_rdc_cfg *rdc_cfg)
+{
+       const struct imx_rdc_cfg *rdc = rdc_cfg;
+
+       while (rdc->type != RDC_INVALID) {
+               switch (rdc->type) {
+               case RDC_MDA:
+                       /* MDA config */
+                       mmio_write_32(MDAn(rdc->index), rdc->setting.rdc_mda);
+                       break;
+               case RDC_PDAP:
+                       /* peripheral access permission config */
+                       mmio_write_32(PDAPn(rdc->index), rdc->setting.rdc_pdap);
+                       break;
+               case RDC_MEM_REGION:
+                       /* memory region access permission config */
+                       mmio_write_32(MRSAn(rdc->index), rdc->setting.rdc_mem_region[0]);
+                       mmio_write_32(MREAn(rdc->index), rdc->setting.rdc_mem_region[1]);
+                       mmio_write_32(MRCn(rdc->index), rdc->setting.rdc_mem_region[2]);
+                       break;
+               default:
+                       break;
+               }
+
+               rdc++;
+       }
+}

diff --git a/plat/imx/imx8m/include/imx_rdc.h b/plat/imx/imx8m/include/imx_rdc.h
new file mode 100644 (file)
index 0000000..6be8550
--- /dev/null
+++ b/plat/imx/imx8m/include/imx_rdc.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2019, NXP. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef IMX_RDC_H
+#define IMX_RDC_H
+
+#include <lib/utils_def.h>
+
+#include <platform_def.h>
+
+#define MDAn(x)                (IMX_RDC_BASE + 0x200 + (x) * 4)
+#define PDAPn(x)       (IMX_RDC_BASE + 0x400 + (x) * 4)
+#define MRSAn(x)       (IMX_RDC_BASE + 0x800 + (x) * 4)
+#define MREAn(x)       (IMX_RDC_BASE + 0x804 + (x) * 4)
+#define MRCn(x)                (IMX_RDC_BASE + 0x808 + (x) * 4)
+
+#define LCK            BIT(31)
+#define SREQ           BIT(30)
+#define ENA            BIT(30)
+
+#define DID0           U(0x0)
+#define DID1           U(0x1)
+#define DID2           U(0x2)
+#define DID3           U(0x3)
+
+#define D3R            BIT(7)
+#define D3W            BIT(6)
+#define D2R            BIT(5)
+#define D2W            BIT(4)
+#define D1R            BIT(3)
+#define D1W            BIT(2)
+#define D0R            BIT(1)
+#define D0W            BIT(0)
+
+union rdc_setting {
+       uint32_t rdc_mda; /* Master Domain Assignment */
+       uint32_t rdc_pdap; /* Peripheral Domain Access Permissions */
+       uint32_t rdc_mem_region[3]; /* Memory Region Access Control */
+};
+
+enum rdc_type {
+       RDC_INVALID,
+       RDC_MDA,
+       RDC_PDAP,
+       RDC_MEM_REGION,
+};
+
+struct imx_rdc_cfg {
+       enum rdc_type type; /* config type Master, Peripheral or Memory region */
+       int index;
+       union rdc_setting setting;
+};
+
+#define RDC_MDAn(i, mda)       \
+       {RDC_MDA, (i), .setting.rdc_mda = (mda), }
+#define RDC_PDAPn(i, pdap)     \
+       {RDC_PDAP, (i), .setting.rdc_pdap = (pdap), }
+
+#define RDC_MEM_REGIONn(i, msa, mea, mrc)      \
+       { RDC_MEM_REGION, (i),                  \
+         .setting.rdc_mem_region[0] = (msa),   \
+         .setting.rdc_mem_region[1] = (mea),   \
+         .setting.rdc_mem_region[2] = (mrc),   \
+       }
+
+void imx_rdc_init(const struct imx_rdc_cfg *cfg);
+
+#endif /* IMX_RDC_H */
+