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Sometimes the debug module may not work well after resume, since it has not been correctly reset when wakeup from suspend. That cause system crash during reusme, and a 'undefined instruction' is displayed on the console. Set the GRF_FORCE_JTAG bit of RK3288_GRF_SOC_CON0 can ensure that debug modul is reset. And we can change the value of RK3288_GRF_SOC_CON0 back when system resume. Signed-off-by: Chris Zhong <zyw@rock-chips.com> Tested-by: Caesar Wang <wxt@rock-chips.com> Reviewed-by: Douglas Anderson <dianders@chromium.org> According to discussions, there does not seem a better solution available. Please also see the potential security implication described in the comment inline in the code. Signed-off-by: Heiko Stuebner <heiko@sntech.de>
120 lines
3.2 KiB
C
120 lines
3.2 KiB
C
/*
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* Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
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* Author: Tony Xie <tony.xie@rock-chips.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#ifndef __MACH_ROCKCHIP_PM_H
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#define __MACH_ROCKCHIP_PM_H
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extern unsigned long rkpm_bootdata_cpusp;
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extern unsigned long rkpm_bootdata_cpu_code;
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extern unsigned long rkpm_bootdata_l2ctlr_f;
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extern unsigned long rkpm_bootdata_l2ctlr;
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extern unsigned long rkpm_bootdata_ddr_code;
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extern unsigned long rkpm_bootdata_ddr_data;
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extern unsigned long rk3288_bootram_sz;
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void rockchip_slp_cpu_resume(void);
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#ifdef CONFIG_PM_SLEEP
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void __init rockchip_suspend_init(void);
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#else
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static inline void rockchip_suspend_init(void)
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{
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}
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#endif
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/****** following is rk3288 defined **********/
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#define RK3288_PMU_WAKEUP_CFG0 0x00
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#define RK3288_PMU_WAKEUP_CFG1 0x04
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#define RK3288_PMU_PWRMODE_CON 0x18
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#define RK3288_PMU_OSC_CNT 0x20
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#define RK3288_PMU_PLL_CNT 0x24
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#define RK3288_PMU_STABL_CNT 0x28
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#define RK3288_PMU_DDR0IO_PWRON_CNT 0x2c
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#define RK3288_PMU_DDR1IO_PWRON_CNT 0x30
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#define RK3288_PMU_CORE_PWRDWN_CNT 0x34
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#define RK3288_PMU_CORE_PWRUP_CNT 0x38
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#define RK3288_PMU_GPU_PWRDWN_CNT 0x3c
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#define RK3288_PMU_GPU_PWRUP_CNT 0x40
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#define RK3288_PMU_WAKEUP_RST_CLR_CNT 0x44
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#define RK3288_PMU_PWRMODE_CON1 0x90
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#define RK3288_GRF_SOC_CON0 0x244
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#define GRF_FORCE_JTAG BIT(12)
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#define GRF_FORCE_JTAG_WRITE BIT(28)
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#define RK3288_SGRF_SOC_CON0 (0x0000)
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#define RK3288_SGRF_FAST_BOOT_ADDR (0x0120)
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#define SGRF_PCLK_WDT_GATE BIT(6)
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#define SGRF_PCLK_WDT_GATE_WRITE BIT(22)
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#define SGRF_FAST_BOOT_EN BIT(8)
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#define SGRF_FAST_BOOT_EN_WRITE BIT(24)
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#define RK3288_SGRF_CPU_CON0 (0x40)
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#define SGRF_DAPDEVICEEN BIT(0)
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#define SGRF_DAPDEVICEEN_WRITE BIT(16)
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#define RK3288_CRU_MODE_CON 0x50
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#define RK3288_CRU_SEL0_CON 0x60
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#define RK3288_CRU_SEL1_CON 0x64
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#define RK3288_CRU_SEL10_CON 0x88
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#define RK3288_CRU_SEL33_CON 0xe4
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#define RK3288_CRU_SEL37_CON 0xf4
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/* PMU_WAKEUP_CFG1 bits */
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#define PMU_ARMINT_WAKEUP_EN BIT(0)
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/* wait 30ms for OSC stable and 30ms for pmic stable */
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#define OSC_STABL_CNT_THRESH (32 * 30)
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#define PMU_STABL_CNT_THRESH (32 * 30)
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enum rk3288_pwr_mode_con {
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PMU_PWR_MODE_EN = 0,
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PMU_CLK_CORE_SRC_GATE_EN,
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PMU_GLOBAL_INT_DISABLE,
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PMU_L2FLUSH_EN,
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PMU_BUS_PD_EN,
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PMU_A12_0_PD_EN,
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PMU_SCU_EN,
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PMU_PLL_PD_EN,
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PMU_CHIP_PD_EN, /* POWER OFF PIN ENABLE */
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PMU_PWROFF_COMB,
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PMU_ALIVE_USE_LF,
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PMU_PMU_USE_LF,
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PMU_OSC_24M_DIS,
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PMU_INPUT_CLAMP_EN,
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PMU_WAKEUP_RESET_EN,
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PMU_SREF0_ENTER_EN,
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PMU_SREF1_ENTER_EN,
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PMU_DDR0IO_RET_EN,
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PMU_DDR1IO_RET_EN,
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PMU_DDR0_GATING_EN,
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PMU_DDR1_GATING_EN,
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PMU_DDR0IO_RET_DE_REQ,
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PMU_DDR1IO_RET_DE_REQ
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};
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enum rk3288_pwr_mode_con1 {
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PMU_CLR_BUS = 0,
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PMU_CLR_CORE,
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PMU_CLR_CPUP,
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PMU_CLR_ALIVE,
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PMU_CLR_DMA,
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PMU_CLR_PERI,
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PMU_CLR_GPU,
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PMU_CLR_VIDEO,
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PMU_CLR_HEVC,
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PMU_CLR_VIO,
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};
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#endif /* __MACH_ROCKCHIP_PM_H */
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