[U-Boot] [PATCH 1/8] arm64: zynqmp: Provide a Kconfig option to define OCM and TCM in MMU

[Michal Simek]

From: Siva Durga Prasad Paladugu <siva.durga.paladugu at xilinx.com>

This patch provides an option to include OCM and TCM memory
into MMU table with corresponding memory attributes.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur at xilinx.com>
Signed-off-by: Michal Simek <michal.simek at xilinx.com>
---

 arch/arm/cpu/armv8/zynqmp/Kconfig | 6 ++++++
 arch/arm/cpu/armv8/zynqmp/cpu.c   | 8 ++++++++
 2 files changed, 14 insertions(+)

diff --git a/arch/arm/cpu/armv8/zynqmp/Kconfig b/arch/arm/cpu/armv8/zynqmp/Kconfig
index 5ac48ebc4d1a..2a0e8f2cbf66 100644
--- a/arch/arm/cpu/armv8/zynqmp/Kconfig
+++ b/arch/arm/cpu/armv8/zynqmp/Kconfig
@@ -56,6 +56,12 @@ config ZYNQMP_USB
 config SYS_MALLOC_F_LEN
 	default 0x600
 
+config DEFINE_TCM_OCM_MMAP
+	bool "Define TCM and OCM memory in MMU Table"
+	help
+	  This option if enabled defines the TCM and OCM memory and its
+	  memory attributes in MMU table entry.
+
 config SPL_ZYNQMP_ALT_BOOTMODE_ENABLED
 	bool "Overwrite SPL bootmode"
 	depends on SPL
diff --git a/arch/arm/cpu/armv8/zynqmp/cpu.c b/arch/arm/cpu/armv8/zynqmp/cpu.c
index 94ecf9066028..5fba0716ca0d 100644
--- a/arch/arm/cpu/armv8/zynqmp/cpu.c
+++ b/arch/arm/cpu/armv8/zynqmp/cpu.c
@@ -38,6 +38,14 @@ static struct mm_region zynqmp_mem_map[] = {
 			 PTE_BLOCK_NON_SHARE |
 			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
 	}, {
+#if defined(CONFIG_DEFINE_TCM_OCM_MMAP)
+		.virt = 0xffe00000UL,
+		.phys = 0xffe00000UL,
+		.size = 0x00200000UL,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+			 PTE_BLOCK_INNER_SHARE
+	}, {
+#endif
 		.virt = 0x400000000UL,
 		.phys = 0x400000000UL,
 		.size = 0x200000000UL,
-- 
1.9.1