| Message ID | 20190128230700.7325-10-stuart.menefy@mathembedded.com (mailing list archive) |
|---|---|
| State | Changes Requested |
| Headers | show |
| Series | Resuscitate Exynos 5260 support | expand |
On Tue, 29 Jan 2019 at 00:08, Stuart Menefy <stuart.menefy@mathembedded.com> wrote: > > Initial support for the PMU on the Exynos5260, largely derived from the > Samsung 3.4 kernel. > > Signed-off-by: Stuart Menefy <stuart.menefy@mathembedded.com> > --- > drivers/soc/samsung/Makefile | 2 +- > drivers/soc/samsung/exynos-pmu.c | 3 + > drivers/soc/samsung/exynos-pmu.h | 1 + > drivers/soc/samsung/exynos5260-pmu.c | 178 ++++++++++++++++++++++++++++ > include/linux/soc/samsung/exynos-regs-pmu.h | 126 ++++++++++++++++++++ > 5 files changed, 309 insertions(+), 1 deletion(-) > create mode 100644 drivers/soc/samsung/exynos5260-pmu.c > > diff --git a/drivers/soc/samsung/Makefile b/drivers/soc/samsung/Makefile > index 29f294baac6e..5b6bf33e8b39 100644 > --- a/drivers/soc/samsung/Makefile > +++ b/drivers/soc/samsung/Makefile > @@ -2,5 +2,5 @@ > obj-$(CONFIG_EXYNOS_PMU) += exynos-pmu.o > > obj-$(CONFIG_EXYNOS_PMU_ARM_DRIVERS) += exynos3250-pmu.o exynos4-pmu.o \ > - exynos5250-pmu.o exynos5420-pmu.o > + exynos5250-pmu.o exynos5260-pmu.o exynos5420-pmu.o > obj-$(CONFIG_EXYNOS_PM_DOMAINS) += pm_domains.o > diff --git a/drivers/soc/samsung/exynos-pmu.c b/drivers/soc/samsung/exynos-pmu.c > index d34ca201b8b7..dafdc0d1288b 100644 > --- a/drivers/soc/samsung/exynos-pmu.c > +++ b/drivers/soc/samsung/exynos-pmu.c > @@ -85,6 +85,9 @@ static const struct of_device_id exynos_pmu_of_device_ids[] = { > .compatible = "samsung,exynos5250-pmu", > .data = exynos_pmu_data_arm_ptr(exynos5250_pmu_data), > }, { > + .compatible = "samsung,exynos5260-pmu", > + .data = exynos_pmu_data_arm_ptr(exynos5260_pmu_data), > + }, { > .compatible = "samsung,exynos5410-pmu", > }, { > .compatible = "samsung,exynos5420-pmu", > diff --git a/drivers/soc/samsung/exynos-pmu.h b/drivers/soc/samsung/exynos-pmu.h > index 977e4daf5a0f..bfd30b6f3093 100644 > --- a/drivers/soc/samsung/exynos-pmu.h > +++ b/drivers/soc/samsung/exynos-pmu.h > @@ -34,6 +34,7 @@ extern const struct exynos_pmu_data exynos3250_pmu_data; > extern const struct exynos_pmu_data exynos4210_pmu_data; > extern const struct exynos_pmu_data exynos4412_pmu_data; > extern const struct exynos_pmu_data exynos5250_pmu_data; > +extern const struct exynos_pmu_data exynos5260_pmu_data; > extern const struct exynos_pmu_data exynos5420_pmu_data; > #endif > > diff --git a/drivers/soc/samsung/exynos5260-pmu.c b/drivers/soc/samsung/exynos5260-pmu.c > new file mode 100644 > index 000000000000..c121e3288dea > --- /dev/null > +++ b/drivers/soc/samsung/exynos5260-pmu.c > @@ -0,0 +1,178 @@ > +// SPDX-License-Identifier: GPL-2.0 > +// > +// Copyright (c) 2018 Garrison Technology Limited > +// derived from exynos5250-pmu.c which was: > +// Copyright (c) 2011-2015 Samsung Electronics Co., Ltd. > +// > +// EXYNOS5260 - CPU PMU (Power Management Unit) support > + > +#include <linux/soc/samsung/exynos-regs-pmu.h> > +#include <linux/soc/samsung/exynos-pmu.h> > + > +#include "exynos-pmu.h" > + > +static const struct exynos_pmu_conf exynos5260_pmu_config[] = { > + /* { .offset = offset, .val = { AFTR, LPA, SLEEP } */ > + { EXYNOS5_ARM_CORE0_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, > + { EXYNOS5_DIS_IRQ_ARM_CORE0_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, > + { EXYNOS5_ARM_CORE1_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, > + { EXYNOS5_DIS_IRQ_ARM_CORE1_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, > + { EXYNOS5260_KFC_CORE0_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, > + { EXYNOS5260_DIS_IRQ_KFC_CORE0_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, > + { EXYNOS5260_KFC_CORE1_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, > + { EXYNOS5260_DIS_IRQ_KFC_CORE1_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, > + { EXYNOS5260_KFC_CORE2_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, > + { EXYNOS5260_DIS_IRQ_KFC_CORE2_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, > + { EXYNOS5260_KFC_CORE3_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, > + { EXYNOS5260_DIS_IRQ_KFC_CORE3_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, > + { EXYNOS5260_EAGLE_NONCPU_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, > + { EXYNOS5260_KFC_NONCPU_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, > + { EXYNOS5260_A5IS_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, > + { EXYNOS5260_DIS_IRQ_A5IS_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, > + { EXYNOS5260_DIS_IRQ_A5IS_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, > + { EXYNOS5_ARM_L2_SYS_PWR_REG, { 0x0, 0x0, 0x7} }, > + { EXYNOS5260_KFC_L2_SYS_PWR_REG, { 0x0, 0x0, 0x7} }, > + { EXYNOS5260_CLKSTOP_CMU_TOP_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, > + { EXYNOS5260_CLKRUN_CMU_TOP_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, > + { EXYNOS5260_RESET_CMU_TOP_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, > + { EXYNOS5260_RESET_CPUCLKSTOP_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, > + { EXYNOS5260_CLKSTOP_CMU_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, > + { EXYNOS5260_CLKRUN_CMU_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, > + { EXYNOS5260_RESET_CMU_MIF_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, > + { EXYNOS5_DDRPHY_DLLLOCK_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, > + { EXYNOS5260_DISABLE_PLL_CMU_TOP_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, > + { EXYNOS5260_DISABLE_PLL_AUD_PLL_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, > + { EXYNOS5260_DISABLE_PLL_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, > + { EXYNOS5_TOP_BUS_SYS_PWR_REG, { 0x7, 0x0, 0x0} }, > + { EXYNOS5_TOP_RETENTION_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, > + { EXYNOS5_TOP_PWR_SYS_PWR_REG, { 0x3, 0x0, 0x3} }, > + { EXYNOS5260_TOP_BUS_MIF_SYS_PWR_REG, { 0x7, 0x0, 0x0} }, > + { EXYNOS5260_TOP_RETENTION_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, > + { EXYNOS5260_TOP_PWR_MIF_SYS_PWR_REG, { 0x3, 0x0, 0x3} }, > + { EXYNOS5_LOGIC_RESET_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, > + { EXYNOS5_OSCCLK_GATE_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, > + { EXYNOS5260_SLEEP_RESET_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, > + { EXYNOS5260_LOGIC_RESET_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, > + { EXYNOS5260_OSCCLK_GATE_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, > + { EXYNOS5260_SLEEP_RESET_MIF_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, > + { EXYNOS5260_MEMORY_TOP_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, > + { EXYNOS5260_MEMORY_MIF_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, > + { EXYNOS5_PAD_RETENTION_DRAM_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, > + { EXYNOS5260_PAD_RETENTION_AUD_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, > + { EXYNOS5260_PAD_RETENTION_JTAG_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, > + { EXYNOS5260_PAD_RETENTION_MMC2_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, > + { EXYNOS5260_PAD_RETENTION_TOP_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, > + { EXYNOS5260_PAD_RETENTION_UART_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, > + { EXYNOS5260_PAD_RETENTION_MMC0_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, > + { EXYNOS5260_PAD_RETENTION_MMC1_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, > + { EXYNOS5260_PAD_RETENTION_SPI_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, > + { EXYNOS5260_PAD_RETENTION_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, > + { EXYNOS5_PAD_ISOLATION_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, > + { EXYNOS5260_PAD_RETENTION_BOOTLDO_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, > + { EXYNOS5260_PAD_ISOLATION_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, > + { EXYNOS5_PAD_ALV_SEL_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, > + { EXYNOS5_XXTI_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, > + { EXYNOS5_EXT_REGULATOR_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, > + { EXYNOS5_GPIO_MODE_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, > + { EXYNOS5260_GPIO_MODE_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, > + { EXYNOS5260_GPIO_MODE_AUD_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, > + { EXYNOS5260_GSCL_SYS_PWR_REG, { 0xF, 0x0, 0x0} }, > + { EXYNOS5260_G3D_SYS_PWR_REG, { 0xF, 0x0, 0x0} }, > + { EXYNOS5260_DISP_SYS_PWR_REG, { 0xF, 0x0, 0x0} }, > + { EXYNOS5260_AUD_SYS_PWR_REG, { 0xF, 0xF, 0x0} }, > + { EXYNOS5260_G2D_SYS_PWR_REG, { 0xF, 0x0, 0x0} }, > + { EXYNOS5260_ISP_SYS_PWR_REG, { 0xF, 0x0, 0x0} }, > + { EXYNOS5260_MFC_SYS_PWR_REG, { 0xF, 0x0, 0x0} }, > + { EXYNOS5260_MEMORY_G2D_SYS_PWR_REG, { 0x0, 0x0, 0xF} }, > + { PMU_TABLE_END,}, > +}; > + > +static unsigned int const exynos5260_list_feed[] = { > + EXYNOS5_ARM_CORE0_OPTION, > + EXYNOS5_ARM_CORE1_OPTION, > + EXYNOS5260_KFC_CORE0_OPTION, > + EXYNOS5260_KFC_CORE1_OPTION, > + EXYNOS5260_KFC_CORE2_OPTION, > + EXYNOS5260_KFC_CORE3_OPTION, > + EXYNOS5260_EAGLE_NONCPU_OPTION, > + EXYNOS5260_KFC_NONCPU_OPTION, > + EXYNOS5260_TOP_PWR_OPTION, > + EXYNOS5260_TOP_PWR_MIF_OPTION, > + EXYNOS5260_GSCL_OPTION, > + EXYNOS5260_G3D_OPTION, > + EXYNOS5260_DISP_OPTION, > + EXYNOS5260_AUD_OPTION, > + EXYNOS5260_G2D_OPTION, > + EXYNOS5260_ISP_OPTION, > + EXYNOS5260_MFC_OPTION, > +}; > + > +static void exynos5260_powerdown_conf_extra(enum sys_powerdown mode) > +{ > + if (!(pmu_raw_readl(EXYNOS5260_PMU_DEBUG) & 0x1)) > + pmu_raw_writel(1, EXYNOS5_XXTI_SYS_PWR_REG); This should not be needed. The reset value is 1. > +} > + > +static void exynos5260_pmu_init(void) > +{ > + unsigned int value; > + int i; > + > + /* Enable USE_STANDBY_WFI for all CORE */ > + pmu_raw_writel(EXYNOS5260_USE_STANDBY_WFI_ALL | > + EXYNOS5260_USE_PROLOGNED_LOGIC_RESET, > + S5P_CENTRAL_SEQ_OPTION); > + > + /* Set PSHOLD port for output high */ > + value = pmu_raw_readl(S5P_PS_HOLD_CONTROL); > + value |= EXYNOS5260_PS_HOLD_OUTPUT_HIGH; > + pmu_raw_writel(value, S5P_PS_HOLD_CONTROL); > + > + /* Enable signal for PSHOLD port */ > + value = pmu_raw_readl(S5P_PS_HOLD_CONTROL); > + value |= EXYNOS5260_PS_HOLD_EN; > + pmu_raw_writel(value, S5P_PS_HOLD_CONTROL); This could be squashed to one write using existing S5P_PS_HOLD_OUTPUT_HIGH which meaning is exactly like what you did here: 1. Set it to output (enable). 2. Set it to high. The existing 3250 code is wrong... because it touches 31 bit which is reserved. Anyone in Samsung willing to test it and fix Exynos3250? Best regards, Krzysztof > + > + /* Init core interface reg */ > + value = pmu_raw_readl(EXYNOS5260_EAGLE_NONCPU_OPTION); > + value &= ~(0xF << 16); > + pmu_raw_writel(value, EXYNOS5260_EAGLE_NONCPU_OPTION); > + value = pmu_raw_readl(EXYNOS5260_KFC_NONCPU_OPTION); > + value &= ~(0xF << 16); > + pmu_raw_writel(value, EXYNOS5260_KFC_NONCPU_OPTION); > + > + /* Init L2 option */ > + pmu_raw_writel(0, EXYNOS5260_EAGLE_L2_OPTION); > + pmu_raw_writel(0, EXYNOS5260_KFC_L2_OPTION); > + > + /* Procedure of central sequencer needs to be changed */ > + pmu_raw_writel((1<<31 | 0x3a<<16 | 0x3e), EXYNOS5260_SEQ_TRANSITION0); > + pmu_raw_writel((1<<31 | 0x3e<<16 | 0x3b), EXYNOS5260_SEQ_TRANSITION1); > + pmu_raw_writel((1<<31 | 0x3d<<16 | 0x3f), EXYNOS5260_SEQ_TRANSITION2); > + > + /* Reset assert ctrl */ > + for (i = 0; i < 2; i++) { > + value = pmu_raw_readl(EXYNOS_ARM_CORE_OPTION(i)); > + value |= S5P_USE_DELAYED_RESET_ASSERTION; > + pmu_raw_writel(value, EXYNOS_ARM_CORE_OPTION(i)); > + } > + > + /* > + * Set power on/off notification method > + * Enable only SC_FEEDBACK > + */ > + for (i = 0; i < ARRAY_SIZE(exynos5260_list_feed); i++) { > + value = pmu_raw_readl(exynos5260_list_feed[i]); > + value &= ~EXYNOS5_USE_SC_COUNTER; > + value |= EXYNOS5_USE_SC_FEEDBACK; > + pmu_raw_writel(value, exynos5260_list_feed[i]); > + } > + > + pmu_raw_writel(0x3, EXYNOS5260_UP_SCHEDULER); > +} > + > +const struct exynos_pmu_data exynos5260_pmu_data = { > + .pmu_config = exynos5260_pmu_config, > + .pmu_init = exynos5260_pmu_init, > + .powerdown_conf_extra = exynos5260_powerdown_conf_extra, > +}; > diff --git a/include/linux/soc/samsung/exynos-regs-pmu.h b/include/linux/soc/samsung/exynos-regs-pmu.h > index 5addaf5ccbce..e35861aa08bc 100644 > --- a/include/linux/soc/samsung/exynos-regs-pmu.h > +++ b/include/linux/soc/samsung/exynos-regs-pmu.h > @@ -138,6 +138,8 @@ > (EXYNOS_ARM_CORE_CONFIGURATION(_nr) + 0x4) > #define EXYNOS_ARM_CORE_OPTION(_nr) \ > (EXYNOS_ARM_CORE_CONFIGURATION(_nr) + 0x8) > +#define EXYNOS_ARM_CORE_RESET(_nr) \ > + (EXYNOS_ARM_CORE_CONFIGURATION(_nr) + 0xc) This define is not used (and valid only for some of SoCs) so please remove it. > > #define EXYNOS_ARM_COMMON_CONFIGURATION 0x2500 > #define EXYNOS_COMMON_CONFIGURATION(_nr) \ > @@ -170,6 +172,8 @@ > #define S5P_PS_HOLD_CONTROL 0x330C > #define S5P_PS_HOLD_EN (1 << 31) > #define S5P_PS_HOLD_OUTPUT_HIGH (3 << 8) > +#define EXYNOS5260_PS_HOLD_EN (1 << 9) > +#define EXYNOS5260_PS_HOLD_OUTPUT_HIGH (1 << 8) Both defines are not needed. Best regards, Krzysztof
Hi Krzysztof, On 2019-01-29 16:55, Krzysztof Kozlowski wrote: > On Tue, 29 Jan 2019 at 00:08, Stuart Menefy > <stuart.menefy@mathembedded.com> wrote: >> Initial support for the PMU on the Exynos5260, largely derived from the >> Samsung 3.4 kernel. >> >> Signed-off-by: Stuart Menefy <stuart.menefy@mathembedded.com> >> --- >> drivers/soc/samsung/Makefile | 2 +- >> drivers/soc/samsung/exynos-pmu.c | 3 + >> drivers/soc/samsung/exynos-pmu.h | 1 + >> drivers/soc/samsung/exynos5260-pmu.c | 178 ++++++++++++++++++++++++++++ >> include/linux/soc/samsung/exynos-regs-pmu.h | 126 ++++++++++++++++++++ >> 5 files changed, 309 insertions(+), 1 deletion(-) >> create mode 100644 drivers/soc/samsung/exynos5260-pmu.c >> >> diff --git a/drivers/soc/samsung/Makefile b/drivers/soc/samsung/Makefile >> index 29f294baac6e..5b6bf33e8b39 100644 >> --- a/drivers/soc/samsung/Makefile >> +++ b/drivers/soc/samsung/Makefile >> @@ -2,5 +2,5 @@ >> obj-$(CONFIG_EXYNOS_PMU) += exynos-pmu.o >> >> obj-$(CONFIG_EXYNOS_PMU_ARM_DRIVERS) += exynos3250-pmu.o exynos4-pmu.o \ >> - exynos5250-pmu.o exynos5420-pmu.o >> + exynos5250-pmu.o exynos5260-pmu.o exynos5420-pmu.o >> obj-$(CONFIG_EXYNOS_PM_DOMAINS) += pm_domains.o >> diff --git a/drivers/soc/samsung/exynos-pmu.c b/drivers/soc/samsung/exynos-pmu.c >> index d34ca201b8b7..dafdc0d1288b 100644 >> --- a/drivers/soc/samsung/exynos-pmu.c >> +++ b/drivers/soc/samsung/exynos-pmu.c >> @@ -85,6 +85,9 @@ static const struct of_device_id exynos_pmu_of_device_ids[] = { >> .compatible = "samsung,exynos5250-pmu", >> .data = exynos_pmu_data_arm_ptr(exynos5250_pmu_data), >> }, { >> + .compatible = "samsung,exynos5260-pmu", >> + .data = exynos_pmu_data_arm_ptr(exynos5260_pmu_data), >> + }, { >> .compatible = "samsung,exynos5410-pmu", >> }, { >> .compatible = "samsung,exynos5420-pmu", >> diff --git a/drivers/soc/samsung/exynos-pmu.h b/drivers/soc/samsung/exynos-pmu.h >> index 977e4daf5a0f..bfd30b6f3093 100644 >> --- a/drivers/soc/samsung/exynos-pmu.h >> +++ b/drivers/soc/samsung/exynos-pmu.h >> @@ -34,6 +34,7 @@ extern const struct exynos_pmu_data exynos3250_pmu_data; >> extern const struct exynos_pmu_data exynos4210_pmu_data; >> extern const struct exynos_pmu_data exynos4412_pmu_data; >> extern const struct exynos_pmu_data exynos5250_pmu_data; >> +extern const struct exynos_pmu_data exynos5260_pmu_data; >> extern const struct exynos_pmu_data exynos5420_pmu_data; >> #endif >> >> diff --git a/drivers/soc/samsung/exynos5260-pmu.c b/drivers/soc/samsung/exynos5260-pmu.c >> new file mode 100644 >> index 000000000000..c121e3288dea >> --- /dev/null >> +++ b/drivers/soc/samsung/exynos5260-pmu.c >> @@ -0,0 +1,178 @@ >> +// SPDX-License-Identifier: GPL-2.0 >> +// >> +// Copyright (c) 2018 Garrison Technology Limited >> +// derived from exynos5250-pmu.c which was: >> +// Copyright (c) 2011-2015 Samsung Electronics Co., Ltd. >> +// >> +// EXYNOS5260 - CPU PMU (Power Management Unit) support >> + >> +#include <linux/soc/samsung/exynos-regs-pmu.h> >> +#include <linux/soc/samsung/exynos-pmu.h> >> + >> +#include "exynos-pmu.h" >> + >> +static const struct exynos_pmu_conf exynos5260_pmu_config[] = { >> + /* { .offset = offset, .val = { AFTR, LPA, SLEEP } */ >> + { EXYNOS5_ARM_CORE0_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, >> + { EXYNOS5_DIS_IRQ_ARM_CORE0_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, >> + { EXYNOS5_ARM_CORE1_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, >> + { EXYNOS5_DIS_IRQ_ARM_CORE1_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, >> + { EXYNOS5260_KFC_CORE0_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, >> + { EXYNOS5260_DIS_IRQ_KFC_CORE0_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, >> + { EXYNOS5260_KFC_CORE1_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, >> + { EXYNOS5260_DIS_IRQ_KFC_CORE1_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, >> + { EXYNOS5260_KFC_CORE2_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, >> + { EXYNOS5260_DIS_IRQ_KFC_CORE2_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, >> + { EXYNOS5260_KFC_CORE3_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, >> + { EXYNOS5260_DIS_IRQ_KFC_CORE3_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, >> + { EXYNOS5260_EAGLE_NONCPU_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, >> + { EXYNOS5260_KFC_NONCPU_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, >> + { EXYNOS5260_A5IS_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, >> + { EXYNOS5260_DIS_IRQ_A5IS_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, >> + { EXYNOS5260_DIS_IRQ_A5IS_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, >> + { EXYNOS5_ARM_L2_SYS_PWR_REG, { 0x0, 0x0, 0x7} }, >> + { EXYNOS5260_KFC_L2_SYS_PWR_REG, { 0x0, 0x0, 0x7} }, >> + { EXYNOS5260_CLKSTOP_CMU_TOP_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, >> + { EXYNOS5260_CLKRUN_CMU_TOP_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, >> + { EXYNOS5260_RESET_CMU_TOP_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, >> + { EXYNOS5260_RESET_CPUCLKSTOP_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, >> + { EXYNOS5260_CLKSTOP_CMU_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, >> + { EXYNOS5260_CLKRUN_CMU_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, >> + { EXYNOS5260_RESET_CMU_MIF_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, >> + { EXYNOS5_DDRPHY_DLLLOCK_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, >> + { EXYNOS5260_DISABLE_PLL_CMU_TOP_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, >> + { EXYNOS5260_DISABLE_PLL_AUD_PLL_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, >> + { EXYNOS5260_DISABLE_PLL_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, >> + { EXYNOS5_TOP_BUS_SYS_PWR_REG, { 0x7, 0x0, 0x0} }, >> + { EXYNOS5_TOP_RETENTION_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, >> + { EXYNOS5_TOP_PWR_SYS_PWR_REG, { 0x3, 0x0, 0x3} }, >> + { EXYNOS5260_TOP_BUS_MIF_SYS_PWR_REG, { 0x7, 0x0, 0x0} }, >> + { EXYNOS5260_TOP_RETENTION_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, >> + { EXYNOS5260_TOP_PWR_MIF_SYS_PWR_REG, { 0x3, 0x0, 0x3} }, >> + { EXYNOS5_LOGIC_RESET_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, >> + { EXYNOS5_OSCCLK_GATE_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, >> + { EXYNOS5260_SLEEP_RESET_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, >> + { EXYNOS5260_LOGIC_RESET_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, >> + { EXYNOS5260_OSCCLK_GATE_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, >> + { EXYNOS5260_SLEEP_RESET_MIF_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, >> + { EXYNOS5260_MEMORY_TOP_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, >> + { EXYNOS5260_MEMORY_MIF_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, >> + { EXYNOS5_PAD_RETENTION_DRAM_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, >> + { EXYNOS5260_PAD_RETENTION_AUD_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, >> + { EXYNOS5260_PAD_RETENTION_JTAG_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, >> + { EXYNOS5260_PAD_RETENTION_MMC2_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, >> + { EXYNOS5260_PAD_RETENTION_TOP_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, >> + { EXYNOS5260_PAD_RETENTION_UART_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, >> + { EXYNOS5260_PAD_RETENTION_MMC0_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, >> + { EXYNOS5260_PAD_RETENTION_MMC1_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, >> + { EXYNOS5260_PAD_RETENTION_SPI_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, >> + { EXYNOS5260_PAD_RETENTION_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, >> + { EXYNOS5_PAD_ISOLATION_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, >> + { EXYNOS5260_PAD_RETENTION_BOOTLDO_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, >> + { EXYNOS5260_PAD_ISOLATION_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, >> + { EXYNOS5_PAD_ALV_SEL_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, >> + { EXYNOS5_XXTI_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, >> + { EXYNOS5_EXT_REGULATOR_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, >> + { EXYNOS5_GPIO_MODE_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, >> + { EXYNOS5260_GPIO_MODE_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, >> + { EXYNOS5260_GPIO_MODE_AUD_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, >> + { EXYNOS5260_GSCL_SYS_PWR_REG, { 0xF, 0x0, 0x0} }, >> + { EXYNOS5260_G3D_SYS_PWR_REG, { 0xF, 0x0, 0x0} }, >> + { EXYNOS5260_DISP_SYS_PWR_REG, { 0xF, 0x0, 0x0} }, >> + { EXYNOS5260_AUD_SYS_PWR_REG, { 0xF, 0xF, 0x0} }, >> + { EXYNOS5260_G2D_SYS_PWR_REG, { 0xF, 0x0, 0x0} }, >> + { EXYNOS5260_ISP_SYS_PWR_REG, { 0xF, 0x0, 0x0} }, >> + { EXYNOS5260_MFC_SYS_PWR_REG, { 0xF, 0x0, 0x0} }, >> + { EXYNOS5260_MEMORY_G2D_SYS_PWR_REG, { 0x0, 0x0, 0xF} }, >> + { PMU_TABLE_END,}, >> +}; >> + >> +static unsigned int const exynos5260_list_feed[] = { >> + EXYNOS5_ARM_CORE0_OPTION, >> + EXYNOS5_ARM_CORE1_OPTION, >> + EXYNOS5260_KFC_CORE0_OPTION, >> + EXYNOS5260_KFC_CORE1_OPTION, >> + EXYNOS5260_KFC_CORE2_OPTION, >> + EXYNOS5260_KFC_CORE3_OPTION, >> + EXYNOS5260_EAGLE_NONCPU_OPTION, >> + EXYNOS5260_KFC_NONCPU_OPTION, >> + EXYNOS5260_TOP_PWR_OPTION, >> + EXYNOS5260_TOP_PWR_MIF_OPTION, >> + EXYNOS5260_GSCL_OPTION, >> + EXYNOS5260_G3D_OPTION, >> + EXYNOS5260_DISP_OPTION, >> + EXYNOS5260_AUD_OPTION, >> + EXYNOS5260_G2D_OPTION, >> + EXYNOS5260_ISP_OPTION, >> + EXYNOS5260_MFC_OPTION, >> +}; >> + >> +static void exynos5260_powerdown_conf_extra(enum sys_powerdown mode) >> +{ >> + if (!(pmu_raw_readl(EXYNOS5260_PMU_DEBUG) & 0x1)) >> + pmu_raw_writel(1, EXYNOS5_XXTI_SYS_PWR_REG); > This should not be needed. The reset value is 1. > >> +} >> + >> +static void exynos5260_pmu_init(void) >> +{ >> + unsigned int value; >> + int i; >> + >> + /* Enable USE_STANDBY_WFI for all CORE */ >> + pmu_raw_writel(EXYNOS5260_USE_STANDBY_WFI_ALL | >> + EXYNOS5260_USE_PROLOGNED_LOGIC_RESET, >> + S5P_CENTRAL_SEQ_OPTION); >> + >> + /* Set PSHOLD port for output high */ >> + value = pmu_raw_readl(S5P_PS_HOLD_CONTROL); >> + value |= EXYNOS5260_PS_HOLD_OUTPUT_HIGH; >> + pmu_raw_writel(value, S5P_PS_HOLD_CONTROL); >> + >> + /* Enable signal for PSHOLD port */ >> + value = pmu_raw_readl(S5P_PS_HOLD_CONTROL); >> + value |= EXYNOS5260_PS_HOLD_EN; >> + pmu_raw_writel(value, S5P_PS_HOLD_CONTROL); > This could be squashed to one write using existing > S5P_PS_HOLD_OUTPUT_HIGH which meaning is exactly like what you did > here: > 1. Set it to output (enable). > 2. Set it to high. > > The existing 3250 code is wrong... because it touches 31 bit which is > reserved. Anyone in Samsung willing to test it and fix Exynos3250? I'm not sure if it is really wrong... It is not named correctly though. I've checked the docs I have and 31 bit exists only in Exynos5260 datasheet. It means however to enable so called 'hw tripping', what is explained as to force pmic to shutdown soc if over-heat happens. Vendors code sets bit 31 on Exynos3250 too and if I remember correctly 5260 has been released at the same time as 3250, so somehow they are similar. If this 'hw tripping' is also implemented on 3250, then I see no point to remove it from the code. Best regards
diff --git a/drivers/soc/samsung/Makefile b/drivers/soc/samsung/Makefile index 29f294baac6e..5b6bf33e8b39 100644 --- a/drivers/soc/samsung/Makefile +++ b/drivers/soc/samsung/Makefile @@ -2,5 +2,5 @@ obj-$(CONFIG_EXYNOS_PMU) += exynos-pmu.o obj-$(CONFIG_EXYNOS_PMU_ARM_DRIVERS) += exynos3250-pmu.o exynos4-pmu.o \ - exynos5250-pmu.o exynos5420-pmu.o + exynos5250-pmu.o exynos5260-pmu.o exynos5420-pmu.o obj-$(CONFIG_EXYNOS_PM_DOMAINS) += pm_domains.o diff --git a/drivers/soc/samsung/exynos-pmu.c b/drivers/soc/samsung/exynos-pmu.c index d34ca201b8b7..dafdc0d1288b 100644 --- a/drivers/soc/samsung/exynos-pmu.c +++ b/drivers/soc/samsung/exynos-pmu.c @@ -85,6 +85,9 @@ static const struct of_device_id exynos_pmu_of_device_ids[] = { .compatible = "samsung,exynos5250-pmu", .data = exynos_pmu_data_arm_ptr(exynos5250_pmu_data), }, { + .compatible = "samsung,exynos5260-pmu", + .data = exynos_pmu_data_arm_ptr(exynos5260_pmu_data), + }, { .compatible = "samsung,exynos5410-pmu", }, { .compatible = "samsung,exynos5420-pmu", diff --git a/drivers/soc/samsung/exynos-pmu.h b/drivers/soc/samsung/exynos-pmu.h index 977e4daf5a0f..bfd30b6f3093 100644 --- a/drivers/soc/samsung/exynos-pmu.h +++ b/drivers/soc/samsung/exynos-pmu.h @@ -34,6 +34,7 @@ extern const struct exynos_pmu_data exynos3250_pmu_data; extern const struct exynos_pmu_data exynos4210_pmu_data; extern const struct exynos_pmu_data exynos4412_pmu_data; extern const struct exynos_pmu_data exynos5250_pmu_data; +extern const struct exynos_pmu_data exynos5260_pmu_data; extern const struct exynos_pmu_data exynos5420_pmu_data; #endif diff --git a/drivers/soc/samsung/exynos5260-pmu.c b/drivers/soc/samsung/exynos5260-pmu.c new file mode 100644 index 000000000000..c121e3288dea --- /dev/null +++ b/drivers/soc/samsung/exynos5260-pmu.c @@ -0,0 +1,178 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Copyright (c) 2018 Garrison Technology Limited +// derived from exynos5250-pmu.c which was: +// Copyright (c) 2011-2015 Samsung Electronics Co., Ltd. +// +// EXYNOS5260 - CPU PMU (Power Management Unit) support + +#include <linux/soc/samsung/exynos-regs-pmu.h> +#include <linux/soc/samsung/exynos-pmu.h> + +#include "exynos-pmu.h" + +static const struct exynos_pmu_conf exynos5260_pmu_config[] = { + /* { .offset = offset, .val = { AFTR, LPA, SLEEP } */ + { EXYNOS5_ARM_CORE0_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, + { EXYNOS5_DIS_IRQ_ARM_CORE0_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, + { EXYNOS5_ARM_CORE1_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, + { EXYNOS5_DIS_IRQ_ARM_CORE1_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, + { EXYNOS5260_KFC_CORE0_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, + { EXYNOS5260_DIS_IRQ_KFC_CORE0_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, + { EXYNOS5260_KFC_CORE1_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, + { EXYNOS5260_DIS_IRQ_KFC_CORE1_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, + { EXYNOS5260_KFC_CORE2_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, + { EXYNOS5260_DIS_IRQ_KFC_CORE2_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, + { EXYNOS5260_KFC_CORE3_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, + { EXYNOS5260_DIS_IRQ_KFC_CORE3_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, + { EXYNOS5260_EAGLE_NONCPU_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, + { EXYNOS5260_KFC_NONCPU_SYS_PWR_REG, { 0x0, 0x0, 0x8} }, + { EXYNOS5260_A5IS_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, + { EXYNOS5260_DIS_IRQ_A5IS_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, + { EXYNOS5260_DIS_IRQ_A5IS_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, + { EXYNOS5_ARM_L2_SYS_PWR_REG, { 0x0, 0x0, 0x7} }, + { EXYNOS5260_KFC_L2_SYS_PWR_REG, { 0x0, 0x0, 0x7} }, + { EXYNOS5260_CLKSTOP_CMU_TOP_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, + { EXYNOS5260_CLKRUN_CMU_TOP_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, + { EXYNOS5260_RESET_CMU_TOP_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, + { EXYNOS5260_RESET_CPUCLKSTOP_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, + { EXYNOS5260_CLKSTOP_CMU_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, + { EXYNOS5260_CLKRUN_CMU_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, + { EXYNOS5260_RESET_CMU_MIF_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, + { EXYNOS5_DDRPHY_DLLLOCK_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, + { EXYNOS5260_DISABLE_PLL_CMU_TOP_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, + { EXYNOS5260_DISABLE_PLL_AUD_PLL_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, + { EXYNOS5260_DISABLE_PLL_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, + { EXYNOS5_TOP_BUS_SYS_PWR_REG, { 0x7, 0x0, 0x0} }, + { EXYNOS5_TOP_RETENTION_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, + { EXYNOS5_TOP_PWR_SYS_PWR_REG, { 0x3, 0x0, 0x3} }, + { EXYNOS5260_TOP_BUS_MIF_SYS_PWR_REG, { 0x7, 0x0, 0x0} }, + { EXYNOS5260_TOP_RETENTION_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, + { EXYNOS5260_TOP_PWR_MIF_SYS_PWR_REG, { 0x3, 0x0, 0x3} }, + { EXYNOS5_LOGIC_RESET_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, + { EXYNOS5_OSCCLK_GATE_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, + { EXYNOS5260_SLEEP_RESET_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, + { EXYNOS5260_LOGIC_RESET_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, + { EXYNOS5260_OSCCLK_GATE_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, + { EXYNOS5260_SLEEP_RESET_MIF_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, + { EXYNOS5260_MEMORY_TOP_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, + { EXYNOS5260_MEMORY_MIF_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, + { EXYNOS5_PAD_RETENTION_DRAM_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, + { EXYNOS5260_PAD_RETENTION_AUD_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, + { EXYNOS5260_PAD_RETENTION_JTAG_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, + { EXYNOS5260_PAD_RETENTION_MMC2_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, + { EXYNOS5260_PAD_RETENTION_TOP_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, + { EXYNOS5260_PAD_RETENTION_UART_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, + { EXYNOS5260_PAD_RETENTION_MMC0_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, + { EXYNOS5260_PAD_RETENTION_MMC1_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, + { EXYNOS5260_PAD_RETENTION_SPI_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, + { EXYNOS5260_PAD_RETENTION_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, + { EXYNOS5_PAD_ISOLATION_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, + { EXYNOS5260_PAD_RETENTION_BOOTLDO_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, + { EXYNOS5260_PAD_ISOLATION_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, + { EXYNOS5_PAD_ALV_SEL_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, + { EXYNOS5_XXTI_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, + { EXYNOS5_EXT_REGULATOR_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, + { EXYNOS5_GPIO_MODE_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, + { EXYNOS5260_GPIO_MODE_MIF_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, + { EXYNOS5260_GPIO_MODE_AUD_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, + { EXYNOS5260_GSCL_SYS_PWR_REG, { 0xF, 0x0, 0x0} }, + { EXYNOS5260_G3D_SYS_PWR_REG, { 0xF, 0x0, 0x0} }, + { EXYNOS5260_DISP_SYS_PWR_REG, { 0xF, 0x0, 0x0} }, + { EXYNOS5260_AUD_SYS_PWR_REG, { 0xF, 0xF, 0x0} }, + { EXYNOS5260_G2D_SYS_PWR_REG, { 0xF, 0x0, 0x0} }, + { EXYNOS5260_ISP_SYS_PWR_REG, { 0xF, 0x0, 0x0} }, + { EXYNOS5260_MFC_SYS_PWR_REG, { 0xF, 0x0, 0x0} }, + { EXYNOS5260_MEMORY_G2D_SYS_PWR_REG, { 0x0, 0x0, 0xF} }, + { PMU_TABLE_END,}, +}; + +static unsigned int const exynos5260_list_feed[] = { + EXYNOS5_ARM_CORE0_OPTION, + EXYNOS5_ARM_CORE1_OPTION, + EXYNOS5260_KFC_CORE0_OPTION, + EXYNOS5260_KFC_CORE1_OPTION, + EXYNOS5260_KFC_CORE2_OPTION, + EXYNOS5260_KFC_CORE3_OPTION, + EXYNOS5260_EAGLE_NONCPU_OPTION, + EXYNOS5260_KFC_NONCPU_OPTION, + EXYNOS5260_TOP_PWR_OPTION, + EXYNOS5260_TOP_PWR_MIF_OPTION, + EXYNOS5260_GSCL_OPTION, + EXYNOS5260_G3D_OPTION, + EXYNOS5260_DISP_OPTION, + EXYNOS5260_AUD_OPTION, + EXYNOS5260_G2D_OPTION, + EXYNOS5260_ISP_OPTION, + EXYNOS5260_MFC_OPTION, +}; + +static void exynos5260_powerdown_conf_extra(enum sys_powerdown mode) +{ + if (!(pmu_raw_readl(EXYNOS5260_PMU_DEBUG) & 0x1)) + pmu_raw_writel(1, EXYNOS5_XXTI_SYS_PWR_REG); +} + +static void exynos5260_pmu_init(void) +{ + unsigned int value; + int i; + + /* Enable USE_STANDBY_WFI for all CORE */ + pmu_raw_writel(EXYNOS5260_USE_STANDBY_WFI_ALL | + EXYNOS5260_USE_PROLOGNED_LOGIC_RESET, + S5P_CENTRAL_SEQ_OPTION); + + /* Set PSHOLD port for output high */ + value = pmu_raw_readl(S5P_PS_HOLD_CONTROL); + value |= EXYNOS5260_PS_HOLD_OUTPUT_HIGH; + pmu_raw_writel(value, S5P_PS_HOLD_CONTROL); + + /* Enable signal for PSHOLD port */ + value = pmu_raw_readl(S5P_PS_HOLD_CONTROL); + value |= EXYNOS5260_PS_HOLD_EN; + pmu_raw_writel(value, S5P_PS_HOLD_CONTROL); + + /* Init core interface reg */ + value = pmu_raw_readl(EXYNOS5260_EAGLE_NONCPU_OPTION); + value &= ~(0xF << 16); + pmu_raw_writel(value, EXYNOS5260_EAGLE_NONCPU_OPTION); + value = pmu_raw_readl(EXYNOS5260_KFC_NONCPU_OPTION); + value &= ~(0xF << 16); + pmu_raw_writel(value, EXYNOS5260_KFC_NONCPU_OPTION); + + /* Init L2 option */ + pmu_raw_writel(0, EXYNOS5260_EAGLE_L2_OPTION); + pmu_raw_writel(0, EXYNOS5260_KFC_L2_OPTION); + + /* Procedure of central sequencer needs to be changed */ + pmu_raw_writel((1<<31 | 0x3a<<16 | 0x3e), EXYNOS5260_SEQ_TRANSITION0); + pmu_raw_writel((1<<31 | 0x3e<<16 | 0x3b), EXYNOS5260_SEQ_TRANSITION1); + pmu_raw_writel((1<<31 | 0x3d<<16 | 0x3f), EXYNOS5260_SEQ_TRANSITION2); + + /* Reset assert ctrl */ + for (i = 0; i < 2; i++) { + value = pmu_raw_readl(EXYNOS_ARM_CORE_OPTION(i)); + value |= S5P_USE_DELAYED_RESET_ASSERTION; + pmu_raw_writel(value, EXYNOS_ARM_CORE_OPTION(i)); + } + + /* + * Set power on/off notification method + * Enable only SC_FEEDBACK + */ + for (i = 0; i < ARRAY_SIZE(exynos5260_list_feed); i++) { + value = pmu_raw_readl(exynos5260_list_feed[i]); + value &= ~EXYNOS5_USE_SC_COUNTER; + value |= EXYNOS5_USE_SC_FEEDBACK; + pmu_raw_writel(value, exynos5260_list_feed[i]); + } + + pmu_raw_writel(0x3, EXYNOS5260_UP_SCHEDULER); +} + +const struct exynos_pmu_data exynos5260_pmu_data = { + .pmu_config = exynos5260_pmu_config, + .pmu_init = exynos5260_pmu_init, + .powerdown_conf_extra = exynos5260_powerdown_conf_extra, +}; diff --git a/include/linux/soc/samsung/exynos-regs-pmu.h b/include/linux/soc/samsung/exynos-regs-pmu.h index 5addaf5ccbce..e35861aa08bc 100644 --- a/include/linux/soc/samsung/exynos-regs-pmu.h +++ b/include/linux/soc/samsung/exynos-regs-pmu.h @@ -138,6 +138,8 @@ (EXYNOS_ARM_CORE_CONFIGURATION(_nr) + 0x4) #define EXYNOS_ARM_CORE_OPTION(_nr) \ (EXYNOS_ARM_CORE_CONFIGURATION(_nr) + 0x8) +#define EXYNOS_ARM_CORE_RESET(_nr) \ + (EXYNOS_ARM_CORE_CONFIGURATION(_nr) + 0xc) #define EXYNOS_ARM_COMMON_CONFIGURATION 0x2500 #define EXYNOS_COMMON_CONFIGURATION(_nr) \ @@ -170,6 +172,8 @@ #define S5P_PS_HOLD_CONTROL 0x330C #define S5P_PS_HOLD_EN (1 << 31) #define S5P_PS_HOLD_OUTPUT_HIGH (3 << 8) +#define EXYNOS5260_PS_HOLD_EN (1 << 9) +#define EXYNOS5260_PS_HOLD_OUTPUT_HIGH (1 << 8) #define S5P_CAM_OPTION 0x3C08 #define S5P_MFC_OPTION 0x3C48 @@ -482,6 +486,128 @@ #define EXYNOS5_OPTION_USE_RETENTION (1 << 4) +/* Only for EXYNOS5260 */ +#define EXYNOS5260_CONFIGURATION_LOCAL_POWER_CFG 0xf +#define EXYNOS5260_CONFIGURATION_INITIATE_WAKEUP_FROM_LOWPOWER 0xf0000 +#define EXYNOS5260_STATUS_WAKEUP_FROM_LOCAL_CFG (0xf << 8) +#define EXYNOS5260_STATUS_STATES 0xf0000 +#define EXYNOS5260_STATUS_STATES_NORMAL 0x40000 +#define EXYNOS5260_SWRESET_PORESET BIT(1) + +#define EXYNOS5260_UP_SCHEDULER 0x0120 +#define EXYNOS5260_SEQ_TRANSITION0 0x0220 +#define EXYNOS5260_SEQ_TRANSITION1 0x0224 +#define EXYNOS5260_SEQ_TRANSITION2 0x0228 +#define EXYNOS5260_EINT_WAKEUP_MASK 0x060C +#define EXYNOS5260_WAKEUP_MASK1 0x0610 +#define EXYNOS5260_PMU_DEBUG 0x0A00 +#define EXYNOS5260_KFC_CORE0_SYS_PWR_REG 0x1040 +#define EXYNOS5260_DIS_IRQ_KFC_CORE0_CENTRAL_SYS_PWR_REG 0x1048 +#define EXYNOS5260_KFC_CORE1_SYS_PWR_REG 0x1050 +#define EXYNOS5260_DIS_IRQ_KFC_CORE1_CENTRAL_SYS_PWR_REG 0x1058 +#define EXYNOS5260_KFC_CORE2_SYS_PWR_REG 0x1060 +#define EXYNOS5260_DIS_IRQ_KFC_CORE2_CENTRAL_SYS_PWR_REG 0x1068 +#define EXYNOS5260_KFC_CORE3_SYS_PWR_REG 0x1070 +#define EXYNOS5260_DIS_IRQ_KFC_CORE3_CENTRAL_SYS_PWR_REG 0x1078 +#define EXYNOS5260_EAGLE_NONCPU_SYS_PWR_REG 0x1080 +#define EXYNOS5260_KFC_NONCPU_SYS_PWR_REG 0x1084 +#define EXYNOS5260_A5IS_SYS_PWR_REG 0x10B0 +#define EXYNOS5260_DIS_IRQ_A5IS_LOCAL_SYS_PWR_REG 0x10B4 +#define EXYNOS5260_DIS_IRQ_A5IS_CENTRAL_SYS_PWR_REG 0x10B8 +#define EXYNOS5260_KFC_L2_SYS_PWR_REG 0x10C4 +#define EXYNOS5260_CLKSTOP_CMU_TOP_SYS_PWR_REG 0x1100 +#define EXYNOS5260_CLKRUN_CMU_TOP_SYS_PWR_REG 0x1104 +#define EXYNOS5260_RESET_CMU_TOP_SYS_PWR_REG 0x110C +#define EXYNOS5260_RESET_CPUCLKSTOP_SYS_PWR_REG 0x111C +#define EXYNOS5260_CLKSTOP_CMU_MIF_SYS_PWR_REG 0x1120 +#define EXYNOS5260_CLKRUN_CMU_MIF_SYS_PWR_REG 0x1124 +#define EXYNOS5260_RESET_CMU_MIF_SYS_PWR_REG 0x112C +#define EXYNOS5260_DISABLE_PLL_CMU_TOP_SYS_PWR_REG 0x1140 +#define EXYNOS5260_DISABLE_PLL_AUD_PLL_SYS_PWR_REG 0x1144 +#define EXYNOS5260_DISABLE_PLL_MIF_SYS_PWR_REG 0x1160 +#define EXYNOS5260_TOP_BUS_MIF_SYS_PWR_REG 0x1190 +#define EXYNOS5260_TOP_RETENTION_MIF_SYS_PWR_REG 0x1194 +#define EXYNOS5260_TOP_PWR_MIF_SYS_PWR_REG 0x1198 +#define EXYNOS5260_SLEEP_RESET_SYS_PWR_REG 0x11A8 +#define EXYNOS5260_LOGIC_RESET_MIF_SYS_PWR_REG 0x11B0 +#define EXYNOS5260_OSCCLK_GATE_MIF_SYS_PWR_REG 0x11B4 +#define EXYNOS5260_SLEEP_RESET_MIF_SYS_PWR_REG 0x11B8 +#define EXYNOS5260_MEMORY_TOP_SYS_PWR_REG 0x11C0 +#define EXYNOS5260_MEMORY_MIF_SYS_PWR_REG 0x11E0 +#define EXYNOS5260_PAD_RETENTION_AUD_SYS_PWR_REG 0x1204 +#define EXYNOS5260_PAD_RETENTION_JTAG_SYS_PWR_REG 0x1208 +#define EXYNOS5260_PAD_RETENTION_MMC2_SYS_PWR_REG 0x1218 +#define EXYNOS5260_PAD_RETENTION_TOP_SYS_PWR_REG 0x1220 +#define EXYNOS5260_PAD_RETENTION_UART_SYS_PWR_REG 0x1224 +#define EXYNOS5260_PAD_RETENTION_MMC0_SYS_PWR_REG 0x1228 +#define EXYNOS5260_PAD_RETENTION_MMC1_SYS_PWR_REG 0x122C +#define EXYNOS5260_PAD_RETENTION_SPI_SYS_PWR_REG 0x1238 +#define EXYNOS5260_PAD_RETENTION_MIF_SYS_PWR_REG 0x123C +#define EXYNOS5260_PAD_RETENTION_BOOTLDO_SYS_PWR_REG 0x1248 +#define EXYNOS5260_PAD_ISOLATION_MIF_SYS_PWR_REG 0x1250 +#define EXYNOS5260_GPIO_MODE_MIF_SYS_PWR_REG 0x1320 +#define EXYNOS5260_GPIO_MODE_AUD_SYS_PWR_REG 0x1340 +#define EXYNOS5260_GSCL_SYS_PWR_REG 0x1400 +#define EXYNOS5260_G3D_SYS_PWR_REG 0x140C +#define EXYNOS5260_DISP_SYS_PWR_REG 0x1410 +#define EXYNOS5260_AUD_SYS_PWR_REG 0x1418 +#define EXYNOS5260_G2D_SYS_PWR_REG 0x1424 +#define EXYNOS5260_ISP_SYS_PWR_REG 0x1428 +#define EXYNOS5260_MFC_SYS_PWR_REG 0x1430 +#define EXYNOS5260_MEMORY_G2D_SYS_PWR_REG 0x1564 +#define EXYNOS5260_KFC_CORE0_OPTION 0x2208 +#define EXYNOS5260_KFC_CORE1_OPTION 0x2288 +#define EXYNOS5260_KFC_CORE2_OPTION 0x2308 +#define EXYNOS5260_KFC_CORE3_OPTION 0x2388 + +#define EXYNOS5260_EAGLE_NONCPU_OPTION 0x2408 +#define EXYNOS5260_KFC_NONCPU_OPTION 0x2428 +#define EXYNOS5260_EAGLE_L2_OPTION 0x2608 +#define EXYNOS5260_KFC_L2_OPTION 0x2628 +#define EXYNOS5260_TOP_PWR_OPTION 0x2C48 +#define EXYNOS5260_TOP_PWR_MIF_OPTION 0x2CC8 +#define EXYNOS5260_PAD_RETENTION_LPDDR3_OPTION 0x3008 +#define EXYNOS5260_PAD_RETENTION_AUD_OPTION 0x3028 +#define EXYNOS5260_PAD_RETENTION_JTAG_OPTION 0x3048 +#define EXYNOS5260_PAD_RETENTION_MMC2_OPTION 0x30C8 +#define EXYNOS5260_PAD_RETENTION_TOP_OPTION 0x3108 +#define EXYNOS5260_PAD_RETENTION_UART_OPTION 0x3128 +#define EXYNOS5260_PAD_RETENTION_MMC0_OPTION 0x3148 +#define EXYNOS5260_PAD_RETENTION_MMC1_OPTION 0x3168 +#define EXYNOS5260_PAD_RETENTION_SPI_OPTION 0x31C8 +#define EXYNOS5260_PAD_RETENTION_MIF_OPTION 0x31E8 +#define EXYNOS5260_PAD_RETENTION_BOOTLDO_OPTION 0x3248 +#define EXYNOS5260_GSCL_OPTION 0x4008 +#define EXYNOS5260_G3D_OPTION 0x4068 +#define EXYNOS5260_DISP_OPTION 0x4088 +#define EXYNOS5260_AUD_OPTION 0x40C8 +#define EXYNOS5260_G2D_OPTION 0x4128 +#define EXYNOS5260_ISP_OPTION 0x4148 +#define EXYNOS5260_MFC_OPTION 0x4188 + +#define EXYNOS5260_USE_PROLOGNED_LOGIC_RESET (1 << 12) + +#define EXYNOS5260_USE_STANDBYWFI_ARM_CORE0 (1 << 16) +#define EXYNOS5260_USE_STANDBYWFI_ARM_CORE1 (1 << 17) +#define EXYNOS5260_USE_STANDBYWFI_KFC_CORE0 (1 << 20) +#define EXYNOS5260_USE_STANDBYWFI_KFC_CORE1 (1 << 21) +#define EXYNOS5260_USE_STANDBYWFI_KFC_CORE2 (1 << 22) +#define EXYNOS5260_USE_STANDBYWFI_KFC_CORE3 (1 << 23) +#define EXYNOS5260_USE_STANDBYWFE_ARM_CORE0 (1 << 24) +#define EXYNOS5260_USE_STANDBYWFE_ARM_CORE1 (1 << 25) +#define EXYNOS5260_USE_STANDBYWFE_KFC_CORE0 (1 << 28) +#define EXYNOS5260_USE_STANDBYWFE_KFC_CORE1 (1 << 29) +#define EXYNOS5260_USE_STANDBYWFE_KFC_CORE2 (1 << 30) +#define EXYNOS5260_USE_STANDBYWFE_KFC_CORE3 (1 << 31) + +#define EXYNOS5260_USE_STANDBY_WFI_ALL \ + (EXYNOS5260_USE_STANDBYWFI_ARM_CORE0 | \ + EXYNOS5260_USE_STANDBYWFI_ARM_CORE1 | \ + EXYNOS5260_USE_STANDBYWFI_KFC_CORE0 | \ + EXYNOS5260_USE_STANDBYWFI_KFC_CORE1 | \ + EXYNOS5260_USE_STANDBYWFI_KFC_CORE2 | \ + EXYNOS5260_USE_STANDBYWFI_KFC_CORE3) + #define EXYNOS5420_SWRESET_KFC_SEL 0x3 /* Only for EXYNOS5420 */
Initial support for the PMU on the Exynos5260, largely derived from the Samsung 3.4 kernel. Signed-off-by: Stuart Menefy <stuart.menefy@mathembedded.com> --- drivers/soc/samsung/Makefile | 2 +- drivers/soc/samsung/exynos-pmu.c | 3 + drivers/soc/samsung/exynos-pmu.h | 1 + drivers/soc/samsung/exynos5260-pmu.c | 178 ++++++++++++++++++++++++++++ include/linux/soc/samsung/exynos-regs-pmu.h | 126 ++++++++++++++++++++ 5 files changed, 309 insertions(+), 1 deletion(-) create mode 100644 drivers/soc/samsung/exynos5260-pmu.c