diff options
Diffstat (limited to 'target/linux/generic/files/crypto/ocf/kirkwood/mvHal/kw_family/ctrlEnv/sys/mvCpuIfInit.S')
| -rw-r--r-- | target/linux/generic/files/crypto/ocf/kirkwood/mvHal/kw_family/ctrlEnv/sys/mvCpuIfInit.S | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/kw_family/ctrlEnv/sys/mvCpuIfInit.S b/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/kw_family/ctrlEnv/sys/mvCpuIfInit.S new file mode 100644 index 000000000..b7efda02c --- /dev/null +++ b/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/kw_family/ctrlEnv/sys/mvCpuIfInit.S @@ -0,0 +1,163 @@ +/******************************************************************************* +Copyright (C) Marvell International Ltd. and its affiliates + +This software file (the "File") is owned and distributed by Marvell +International Ltd. and/or its affiliates ("Marvell") under the following +alternative licensing terms. Once you have made an election to distribute the +File under one of the following license alternatives, please (i) delete this +introductory statement regarding license alternatives, (ii) delete the two +license alternatives that you have not elected to use and (iii) preserve the +Marvell copyright notice above. + +******************************************************************************** +Marvell Commercial License Option + +If you received this File from Marvell and you have entered into a commercial +license agreement (a "Commercial License") with Marvell, the File is licensed +to you under the terms of the applicable Commercial License. + +******************************************************************************** +Marvell GPL License Option + +If you received this File from Marvell, you may opt to use, redistribute and/or +modify this File in accordance with the terms and conditions of the General +Public License Version 2, June 1991 (the "GPL License"), a copy of which is +available along with the File in the license.txt file or by writing to the Free +Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 or +on the worldwide web at http://www.gnu.org/licenses/gpl.txt. + +THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE IMPLIED +WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY +DISCLAIMED. The GPL License provides additional details about this warranty +disclaimer. +******************************************************************************** +Marvell BSD License Option + +If you received this File from Marvell, you may opt to use, redistribute and/or +modify this File under the following licensing terms. +Redistribution and use in source and binary forms, with or without modification, +are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + * Neither the name of Marvell nor the names of its contributors may be + used to endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR +ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON +ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +*******************************************************************************/ + +#define MV_ASMLANGUAGE +#include "mvOsAsm.h" +#include "mvDeviceId.h" +#include "mvCtrlEnvRegs.h" +#include "mvCpuIfRegs.h" +#include "mvCtrlEnvAsm.h" + + +/******************************************************************************* +* mvCpuIfPreInit - Make early initialization of CPU interface. +* +* DESCRIPTION: +* The function will initialize the CPU interface parameters that must +* be initialize before any BUS activity towards the DDR interface, +* which means it must be executed from ROM. Because of that, the function +* is implemented in assembly code. +* The function configure the following CPU config register parameters: +* 1) CPU2MbusLTickDrv +* 2) CPU2MbusLTickSample. +* NOTE: This function must be called AFTER the internal register +* base is modified to INTER_REGS_BASE. +* +* INPUT: +* None. +* +* OUTPUT: +* None. +* +* RETURN: +* None. +* +* r11 holds return function address. +*******************************************************************************/ +#define MV88F6281_PCKG_OPT 2 +#define MV88F6192_PCKG_OPT 1 +#define MV88F6180_PCKG_OPT 0 + + .globl _mvCpuIfPreInit +_mvCpuIfPreInit: + + mov r11, LR /* Save link register */ + + /* Read device ID */ + MV_CTRL_MODEL_GET_ASM(r4, r5); + + /* goto calcConfigReg if device is 6281 */ + ldr r5, =MV88F6281_PCKG_OPT + cmp r4, r5 + beq calcConfigReg + + /* goto calcConfigReg if device is 6192/6190 */ + ldr r5, =MV88F6192_PCKG_OPT + cmp r4, r5 + beq calcConfigReg + + /* Else 6180 */ + /* Get the "sample on reset" register */ + MV_REG_READ_ASM (r4, r5, MPP_SAMPLE_AT_RESET) + ldr r5, =MSAR_CPUCLCK_MASK_6180 + and r5, r4, r5 + mov r5, r5, lsr #MSAR_CPUCLCK_OFFS_6180 + + ldr r4, =CPU_2_MBUSL_DDR_CLK_1x3 + cmp r5, #CPU_2_DDR_CLK_1x3_1 + beq setConfigReg + + ldr r4, =CPU_2_MBUSL_DDR_CLK_1x4 + cmp r5, #CPU_2_DDR_CLK_1x4_1 + beq setConfigReg + b setConfigReg + +calcConfigReg: + /* Get the "sample on reset" register */ + MV_REG_READ_ASM (r4, r5, MPP_SAMPLE_AT_RESET) + ldr r5, =MSAR_DDRCLCK_RTIO_MASK + and r5, r4, r5 + mov r5, r5, lsr #MSAR_DDRCLCK_RTIO_OFFS + + ldr r4, =CPU_2_MBUSL_DDR_CLK_1x3 + cmp r5, #CPU_2_DDR_CLK_1x3 + beq setConfigReg + + ldr r4, =CPU_2_MBUSL_DDR_CLK_1x4 + cmp r5, #CPU_2_DDR_CLK_1x4 + beq setConfigReg + + /* Else */ + ldr r4, =0 + +setConfigReg: + /* Read CPU Config register */ + MV_REG_READ_ASM (r7, r5, CPU_CONFIG_REG) + ldr r5, =~(CCR_CPU_2_MBUSL_TICK_DRV_MASK | CCR_CPU_2_MBUSL_TICK_SMPL_MASK) + and r7, r7, r5 /* Clear register fields */ + orr r7, r7, r4 /* Set the values according to the findings */ + MV_REG_WRITE_ASM (r7, r5, CPU_CONFIG_REG) + +done: + mov PC, r11 /* r11 is saved link register */ |