diff options
| author | Bhupesh Sharma <bhupesh.sharma@freescale.com> | 2015-07-01 09:58:03 +0530 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2015-09-01 21:37:49 -0500 |
| commit | 3ffa95c283aa45e97d35c033577ab0b67628f426 (patch) | |
| tree | 10029547191cdabdefcf6d4c2ce70569e1035f79 /arch/arm/lib | |
| parent | 7fb79e6552c45487ff31d00ef4f54d0e040d457f (diff) | |
armv8: Add framework for CCN-504 interconnect configuration
This patch adds a minimal framework for Dickens CCN-504
interconnect configuration - mainly related to adding Clusters/cores
to snoop/DVM domain and setting QoS of the RN-I ports.
LS2085A platform makes use of these configurations to support
better network data performance and to boot a SMP Linux.
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'arch/arm/lib')
| -rw-r--r-- | arch/arm/lib/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/lib/ccn504.S | 61 |
2 files changed, 62 insertions, 0 deletions
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile index 31a5c8d77f..51497cc289 100644 --- a/arch/arm/lib/Makefile +++ b/arch/arm/lib/Makefile @@ -42,6 +42,7 @@ obj-y += stack.o ifdef CONFIG_CPU_V7M obj-y += interrupts_m.o else ifdef CONFIG_ARM64 +obj-y += ccn504.o obj-y += gic_64.o obj-y += interrupts_64.o else diff --git a/arch/arm/lib/ccn504.S b/arch/arm/lib/ccn504.S new file mode 100644 index 0000000000..7570c7b231 --- /dev/null +++ b/arch/arm/lib/ccn504.S @@ -0,0 +1,61 @@ +/* + * (C) Copyright 2015 Freescale Semiconductor + * + * SPDX-License-Identifier: GPL-2.0+ + * + * Extracted from gic_64.S + */ + +#include <config.h> +#include <linux/linkage.h> +#include <asm/macro.h> + +/************************************************************************* + * + * void ccn504_add_masters_to_dvm(CCI_MN_BASE, CCI_MN_RNF_NODEID_LIST, + * CCI_MN_DVM_DOMAIN_CTL_SET); + * + * Add fully-coherent masters to DVM domain + * + *************************************************************************/ +ENTRY(ccn504_add_masters_to_dvm) + /* + * x0: CCI_MN_BASE + * x1: CCI_MN_RNF_NODEID_LIST + * x2: CCI_MN_DVM_DOMAIN_CTL_SET + */ + + /* Add fully-coherent masters to DVM domain */ + ldr x9, [x0, x1] + str x9, [x0, x2] +1: ldr x10, [x0, x2] + mvn x11, x10 + tst x11, x10 /* Wait for domain addition to complete */ + b.ne 1b + + ret +ENDPROC(ccn504_add_masters_to_dvm) + +/************************************************************************* + * + * void ccn504_set_qos(CCI_Sx_QOS_CONTROL_BASE, QoS Value); + * + * Initialize QoS settings for AR/AW override. + * Right now, this function sets the same QoS value for all RN-I ports + * + *************************************************************************/ +ENTRY(ccn504_set_qos) + /* + * x0: CCI_Sx_QOS_CONTROL_BASE + * x1: QoS Value + */ + + /* Set all RN-I ports to QoS value denoted by x1 */ + ldr x9, [x0] + mov x10, x1 + orr x9, x9, x10 + str x9, [x0] + + ret +ENDPROC(ccn504_set_qos) + |