From 3ffa95c283aa45e97d35c033577ab0b67628f426 Mon Sep 17 00:00:00 2001 From: Bhupesh Sharma Date: Wed, 1 Jul 2015 09:58:03 +0530 Subject: 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 Reviewed-by: York Sun --- arch/arm/lib/ccn504.S | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 arch/arm/lib/ccn504.S (limited to 'arch/arm/lib/ccn504.S') diff --git a/arch/arm/lib/ccn504.S b/arch/arm/lib/ccn504.S new file mode 100644 index 0000000..7570c7b --- /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 +#include +#include + +/************************************************************************* + * + * 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) + -- cgit v1.1