diff options
Diffstat (limited to 'arch/arm/mach-imx/pm-imx6.c')
| -rw-r--r-- | arch/arm/mach-imx/pm-imx6.c | 67 |
1 files changed, 60 insertions, 7 deletions
diff --git a/arch/arm/mach-imx/pm-imx6.c b/arch/arm/mach-imx/pm-imx6.c index 9392a8f4ef24..5c3af8f993d0 100644 --- a/arch/arm/mach-imx/pm-imx6.c +++ b/arch/arm/mach-imx/pm-imx6.c @@ -129,6 +129,14 @@ static const u32 imx6sl_mmdc_io_offset[] __initconst = { 0x330, 0x334, 0x320, /* SDCKE0, SDCKE1, RESET */ }; +static const u32 imx6sx_mmdc_io_offset[] __initconst = { + 0x2ec, 0x2f0, 0x2f4, 0x2f8, /* DQM0 ~ DQM3 */ + 0x60c, 0x610, 0x61c, 0x620, /* GPR_B0DS ~ GPR_B3DS */ + 0x300, 0x2fc, 0x32c, 0x5f4, /* CAS, RAS, SDCLK_0, GPR_ADDS */ + 0x310, 0x314, 0x5f8, 0x608, /* SODT0, SODT1, MODE_CTL, MODE */ + 0x330, 0x334, 0x338, 0x33c, /* SDQS0 ~ SDQS3 */ +}; + static const struct imx6_pm_socdata imx6q_pm_data __initconst = { .cpu_type = MXC_CPU_IMX6Q, .mmdc_compat = "fsl,imx6q-mmdc", @@ -159,6 +167,16 @@ static const struct imx6_pm_socdata imx6sl_pm_data __initconst = { .mmdc_io_offset = imx6sl_mmdc_io_offset, }; +static const struct imx6_pm_socdata imx6sx_pm_data __initconst = { + .cpu_type = MXC_CPU_IMX6SX, + .mmdc_compat = "fsl,imx6sx-mmdc", + .src_compat = "fsl,imx6sx-src", + .iomuxc_compat = "fsl,imx6sx-iomuxc", + .gpc_compat = "fsl,imx6sx-gpc", + .mmdc_io_num = ARRAY_SIZE(imx6sx_mmdc_io_offset), + .mmdc_io_offset = imx6sx_mmdc_io_offset, +}; + /* * This structure is for passing necessary data for low level ocram * suspend code(arch/arm/mach-imx/suspend-imx6.S), if this struct @@ -181,11 +199,13 @@ struct imx6_cpu_pm_info { u32 mmdc_io_val[MX6_MAX_MMDC_IO_NUM][2]; /* To save offset and value */ } __aligned(8); -void imx6q_set_int_mem_clk_lpm(void) +void imx6q_set_int_mem_clk_lpm(bool enable) { u32 val = readl_relaxed(ccm_base + CGPR); - val |= BM_CGPR_INT_MEM_CLK_LPM; + val &= ~BM_CGPR_INT_MEM_CLK_LPM; + if (enable) + val |= BM_CGPR_INT_MEM_CLK_LPM; writel_relaxed(val, ccm_base + CGPR); } @@ -254,6 +274,14 @@ int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode) break; case STOP_POWER_ON: val |= 0x2 << BP_CLPCR_LPM; + val &= ~BM_CLPCR_VSTBY; + val &= ~BM_CLPCR_SBYOS; + if (cpu_is_imx6sl()) + val |= BM_CLPCR_BYPASS_PMIC_READY; + if (cpu_is_imx6sl() || cpu_is_imx6sx()) + val |= BM_CLPCR_BYP_MMDC_CH0_LPM_HS; + else + val |= BM_CLPCR_BYP_MMDC_CH1_LPM_HS; break; case WAIT_UNCLOCKED_POWER_OFF: val |= 0x1 << BP_CLPCR_LPM; @@ -265,12 +293,12 @@ int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode) val |= 0x3 << BP_CLPCR_STBY_COUNT; val |= BM_CLPCR_VSTBY; val |= BM_CLPCR_SBYOS; - if (cpu_is_imx6sl()) { + if (cpu_is_imx6sl()) val |= BM_CLPCR_BYPASS_PMIC_READY; + if (cpu_is_imx6sl() || cpu_is_imx6sx()) val |= BM_CLPCR_BYP_MMDC_CH0_LPM_HS; - } else { + else val |= BM_CLPCR_BYP_MMDC_CH1_LPM_HS; - } break; default: return -EINVAL; @@ -314,8 +342,22 @@ static int imx6q_suspend_finish(unsigned long val) static int imx6q_pm_enter(suspend_state_t state) { switch (state) { + case PM_SUSPEND_STANDBY: + imx6q_set_lpm(STOP_POWER_ON); + imx6q_set_int_mem_clk_lpm(true); + imx_gpc_pre_suspend(false); + if (cpu_is_imx6sl()) + imx6sl_set_wait_clk(true); + /* Zzz ... */ + cpu_do_idle(); + if (cpu_is_imx6sl()) + imx6sl_set_wait_clk(false); + imx_gpc_post_resume(); + imx6q_set_lpm(WAIT_CLOCKED); + break; case PM_SUSPEND_MEM: imx6q_set_lpm(STOP_POWER_OFF); + imx6q_set_int_mem_clk_lpm(false); imx6q_enable_wb(true); /* * For suspend into ocram, asm code already take care of @@ -323,7 +365,7 @@ static int imx6q_pm_enter(suspend_state_t state) */ if (!imx6_suspend_in_ocram_fn) imx6q_enable_rbc(true); - imx_gpc_pre_suspend(); + imx_gpc_pre_suspend(true); imx_anatop_pre_suspend(); imx_set_cpu_jump(0, v7_cpu_resume); /* Zzz ... */ @@ -334,6 +376,7 @@ static int imx6q_pm_enter(suspend_state_t state) imx_gpc_post_resume(); imx6q_enable_rbc(false); imx6q_enable_wb(false); + imx6q_set_int_mem_clk_lpm(true); imx6q_set_lpm(WAIT_CLOCKED); break; default: @@ -343,9 +386,14 @@ static int imx6q_pm_enter(suspend_state_t state) return 0; } +static int imx6q_pm_valid(suspend_state_t state) +{ + return (state == PM_SUSPEND_STANDBY || state == PM_SUSPEND_MEM); +} + static const struct platform_suspend_ops imx6q_pm_ops = { .enter = imx6q_pm_enter, - .valid = suspend_valid_only_mem, + .valid = imx6q_pm_valid, }; void __init imx6q_pm_set_ccm_base(void __iomem *base) @@ -549,3 +597,8 @@ void __init imx6sl_pm_init(void) { imx6_pm_common_init(&imx6sl_pm_data); } + +void __init imx6sx_pm_init(void) +{ + imx6_pm_common_init(&imx6sx_pm_data); +} |
