/* * Copyright (C) 2012-2017 ARM Limited or its affiliates. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include "ssi_config.h" #include <linux/kernel.h> #include <linux/platform_device.h> #include <linux/interrupt.h> #include <crypto/ctr.h> #include <linux/pm_runtime.h> #include "ssi_driver.h" #include "ssi_sram_mgr.h" #include "ssi_pm_ext.h" /* This function should suspend the HW (if possiable), It should be implemented by the driver user. The reference code clears the internal SRAM to imitate lose of state. */
void ssi_pm_ext_hw_suspend(struct device *dev) { struct ssi_drvdata *drvdata = (struct ssi_drvdata *)dev_get_drvdata(dev); unsigned int val; void __iomem *cc_base = drvdata->cc_base; unsigned int sram_addr = 0; CC_HAL_WRITE_REGISTER(CC_REG_OFFSET(HOST_RGF, SRAM_ADDR), sram_addr); for (;sram_addr < SSI_CC_SRAM_SIZE ; sram_addr+=4) { CC_HAL_WRITE_REGISTER(CC_REG_OFFSET(HOST_RGF, SRAM_DATA), 0x0); do { val = CC_HAL_READ_REGISTER(CC_REG_OFFSET(HOST_RGF, SRAM_DATA_READY)); } while (!(val &0x1)); } }Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Gilad Ben-Yossef | 106 | 100.00% | 1 | 100.00% |
| Total | 106 | 100.00% | 1 | 100.00% |
| Person | Tokens | Prop | Commits | CommitProp |
| Gilad Ben-Yossef | 11 | 100.00% | 1 | 100.00% |
| Total | 11 | 100.00% | 1 | 100.00% |
| Person | Tokens | Prop | Commits | CommitProp |
| Gilad Ben-Yossef | 147 | 100.00% | 1 | 100.00% |
| Total | 147 | 100.00% | 1 | 100.00% |