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authorStefano Babic <sbabic@denx.de>2016-12-16 09:53:52 +0100
committerStefano Babic <sbabic@denx.de>2016-12-16 09:53:52 +0100
commitf2465934b46235287e07473fa4919035ba1a2b68 (patch)
treece6d4480a31d592dfee52222b620329a9c75b055 /arch/arm/mach-mvebu/armada8k
parent51efabac487d832632f9797a94ed2ba6fe98e718 (diff)
parent53e8ca22538c2cec691fe74098684a359302688c (diff)
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Merge branch 'master' of git://git.denx.de/u-boot
Diffstat (limited to 'arch/arm/mach-mvebu/armada8k')
-rw-r--r--arch/arm/mach-mvebu/armada8k/Makefile1
-rw-r--r--arch/arm/mach-mvebu/armada8k/cache_llc.S39
-rw-r--r--arch/arm/mach-mvebu/armada8k/cpu.c18
3 files changed, 57 insertions, 1 deletions
diff --git a/arch/arm/mach-mvebu/armada8k/Makefile b/arch/arm/mach-mvebu/armada8k/Makefile
index 84c69d9..0facf14 100644
--- a/arch/arm/mach-mvebu/armada8k/Makefile
+++ b/arch/arm/mach-mvebu/armada8k/Makefile
@@ -5,3 +5,4 @@
#
obj-y = cpu.o
+obj-y += cache_llc.o
diff --git a/arch/arm/mach-mvebu/armada8k/cache_llc.S b/arch/arm/mach-mvebu/armada8k/cache_llc.S
new file mode 100644
index 0000000..71aecb2
--- /dev/null
+++ b/arch/arm/mach-mvebu/armada8k/cache_llc.S
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2016 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ * https://spdx.org/licenses
+ */
+
+#include <asm/arch-armada8k/cache_llc.h>
+#include <linux/linkage.h>
+
+/*
+ * int __asm_flush_l3_dcache
+ *
+ * flush Armada-8K last level cache.
+ *
+ */
+ENTRY(__asm_flush_l3_dcache)
+ /* flush cache */
+ mov x0, #LLC_BASE_ADDR
+ add x0, x0, #LLC_FLUSH_BY_WAY
+ movk x0, #MVEBU_A8K_REGS_BASE_MSB, lsl #16
+ mov w1, #LLC_WAY_MASK
+ str w1, [x0]
+ /* sync cache */
+ mov x0, #LLC_BASE_ADDR
+ add x0, x0, #LLC_CACHE_SYNC
+ movk x0, #MVEBU_A8K_REGS_BASE_MSB, lsl #16
+ str wzr, [x0]
+ /* check that cache sync completed */
+ mov x0, #LLC_BASE_ADDR
+ add x0, x0, #LLC_CACHE_SYNC_COMPLETE
+ movk x0, #MVEBU_A8K_REGS_BASE_MSB, lsl #16
+1: ldr w1, [x0]
+ and w1, w1, #LLC_CACHE_SYNC_MASK
+ cbnz w1, 1b
+ /* return success */
+ mov x0, #0
+ ret
+ENDPROC(__asm_flush_l3_dcache)
diff --git a/arch/arm/mach-mvebu/armada8k/cpu.c b/arch/arm/mach-mvebu/armada8k/cpu.c
index 036430c..2719d68 100644
--- a/arch/arm/mach-mvebu/armada8k/cpu.c
+++ b/arch/arm/mach-mvebu/armada8k/cpu.c
@@ -39,7 +39,7 @@ static struct mm_region mvebu_mem_map[] = {
PTE_BLOCK_NON_SHARE
},
{
- /* SRAM, MMIO regions - CP110 region */
+ /* SRAM, MMIO regions - CP110 master region */
.phys = 0xf2000000UL,
.virt = 0xf2000000UL,
.size = 0x02000000UL, /* 32MiB internal registers */
@@ -47,6 +47,22 @@ static struct mm_region mvebu_mem_map[] = {
PTE_BLOCK_NON_SHARE
},
{
+ /* SRAM, MMIO regions - CP110 slave region */
+ .phys = 0xf4000000UL,
+ .virt = 0xf4000000UL,
+ .size = 0x02000000UL, /* 32MiB internal registers */
+ .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE
+ },
+ {
+ /* PCI regions */
+ .phys = 0xf8000000UL,
+ .virt = 0xf8000000UL,
+ .size = 0x08000000UL, /* 128MiB PCI space (master & slave) */
+ .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE
+ },
+ {
/* List terminator */
0,
}