From 189bec47ab1ff1b4bec6060f199f11dab9cd7b2d Mon Sep 17 00:00:00 2001
From: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Date: Thu, 13 Jul 2017 19:01:10 +0530
Subject: [PATCH] arm64: zynqmp: Provide a Kconfig option to define OCM and TCM
in MMU
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@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@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 5ac48ebc4d1..2a0e8f2cbf6 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 94ecf906602..5fba0716ca0 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,
--
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