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[83.8.121.70]) by smtp.gmail.com with ESMTPSA id r20-20020a056402019400b0050476da5160sm4427443edv.45.2023.04.16.03.18.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 16 Apr 2023 03:18:12 -0700 (PDT) From: Artur Weber To: Krzysztof Kozlowski Cc: Alim Akhtar , Rob Herring , Sylwester Nawrocki , Tomasz Figa , Chanwoo Choi , Michael Turquette , Stephen Boyd , Arnd Bergmann , Olof Johansson , soc@kernel.org, Russell King , Daniel Lezcano , Kukjin Kim , Mauro Carvalho Chehab , Vinod Koul , Kishon Vijay Abraham I , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-pm@vger.kernel.org, linux-media@vger.kernel.org, linux-phy@lists.infradead.org, ~postmarketos/upstreaming@lists.sr.ht, Artur Weber Subject: [PATCH 03/12] ARM: exynos: Re-introduce Exynos4212 support Date: Sun, 16 Apr 2023 12:16:15 +0200 Message-Id: <20230416101624.15866-4-aweber.kernel@gmail.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230416101624.15866-1-aweber.kernel@gmail.com> References: <20230416101624.15866-1-aweber.kernel@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org The platform was originally dropped in commit bca9085e0ae9 ("ARM: dts: exynos: remove Exynos4212 support (dead code)"), as there were no boards using it. We will be adding a device that uses it, so add it back. This effectively reverts commit 9e43eca3c874 ("ARM: EXYNOS: Remove Exynos4212 related dead code"). Signed-off-by: Artur Weber --- arch/arm/mach-exynos/Kconfig | 5 +++++ arch/arm/mach-exynos/common.h | 8 ++++++++ arch/arm/mach-exynos/exynos.c | 2 ++ arch/arm/mach-exynos/firmware.c | 8 +++++++- arch/arm/mach-exynos/pm.c | 2 +- arch/arm/mach-exynos/suspend.c | 4 ++++ 6 files changed, 27 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig index 4d3b40e4049a..b3d5df5225fe 100644 --- a/arch/arm/mach-exynos/Kconfig +++ b/arch/arm/mach-exynos/Kconfig @@ -78,6 +78,11 @@ config CPU_EXYNOS4210 default y depends on ARCH_EXYNOS4 +config SOC_EXYNOS4212 + bool "Samsung Exynos4212" + default y + depends on ARCH_EXYNOS4 + config SOC_EXYNOS4412 bool "Samsung Exynos4412" default y diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h index 29eb075b24a4..c9e85d33c309 100644 --- a/arch/arm/mach-exynos/common.h +++ b/arch/arm/mach-exynos/common.h @@ -15,6 +15,7 @@ #define EXYNOS3_SOC_MASK 0xFFFFF000 #define EXYNOS4210_CPU_ID 0x43210000 +#define EXYNOS4212_CPU_ID 0x43220000 #define EXYNOS4412_CPU_ID 0xE4412200 #define EXYNOS4_CPU_MASK 0xFFFE0000 @@ -34,6 +35,7 @@ static inline int is_samsung_##name(void) \ IS_SAMSUNG_CPU(exynos3250, EXYNOS3250_SOC_ID, EXYNOS3_SOC_MASK) IS_SAMSUNG_CPU(exynos4210, EXYNOS4210_CPU_ID, EXYNOS4_CPU_MASK) +IS_SAMSUNG_CPU(exynos4212, EXYNOS4212_CPU_ID, EXYNOS4_CPU_MASK) IS_SAMSUNG_CPU(exynos4412, EXYNOS4412_CPU_ID, EXYNOS4_CPU_MASK) IS_SAMSUNG_CPU(exynos5250, EXYNOS5250_SOC_ID, EXYNOS5_SOC_MASK) IS_SAMSUNG_CPU(exynos5410, EXYNOS5410_SOC_ID, EXYNOS5_SOC_MASK) @@ -52,6 +54,12 @@ IS_SAMSUNG_CPU(exynos5800, EXYNOS5800_SOC_ID, EXYNOS5_SOC_MASK) # define soc_is_exynos4210() 0 #endif +#if defined(CONFIG_SOC_EXYNOS4212) +# define soc_is_exynos4212() is_samsung_exynos4212() +#else +# define soc_is_exynos4212() 0 +#endif + #if defined(CONFIG_SOC_EXYNOS4412) # define soc_is_exynos4412() is_samsung_exynos4412() #else diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c index 51a247ca4da8..5671621f1661 100644 --- a/arch/arm/mach-exynos/exynos.c +++ b/arch/arm/mach-exynos/exynos.c @@ -178,6 +178,7 @@ static void __init exynos_dt_machine_init(void) exynos_cpuidle.dev.platform_data = &cpuidle_coupled_exynos_data; #endif if (of_machine_is_compatible("samsung,exynos4210") || + of_machine_is_compatible("samsung,exynos4212") || (of_machine_is_compatible("samsung,exynos4412") && (of_machine_is_compatible("samsung,trats2") || of_machine_is_compatible("samsung,midas") || @@ -192,6 +193,7 @@ static char const *const exynos_dt_compat[] __initconst = { "samsung,exynos3250", "samsung,exynos4", "samsung,exynos4210", + "samsung,exynos4212", "samsung,exynos4412", "samsung,exynos5", "samsung,exynos5250", diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c index 2da5b60b59e2..110c8064ee64 100644 --- a/arch/arm/mach-exynos/firmware.c +++ b/arch/arm/mach-exynos/firmware.c @@ -63,12 +63,18 @@ static int exynos_cpu_boot(int cpu) * * On Exynos5 devices the call is ignored by trustzone firmware. */ - if (!soc_is_exynos4210() && !soc_is_exynos4412()) + if (!soc_is_exynos4210() && !soc_is_exynos4412() && + !soc_is_exynos4212()) return 0; /* * The second parameter of SMC_CMD_CPU1BOOT command means CPU id. + * But, Exynos4212 has only one secondary CPU so second parameter + * isn't used for informing secure firmware about CPU id. */ + if (soc_is_exynos4212()) + cpu = 0; + exynos_smc(SMC_CMD_CPU1BOOT, cpu, 0, 0); return 0; } diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c index 30f4e55bf39e..9b6db04e4e34 100644 --- a/arch/arm/mach-exynos/pm.c +++ b/arch/arm/mach-exynos/pm.c @@ -161,7 +161,7 @@ void exynos_enter_aftr(void) exynos_pm_central_suspend(); - if (soc_is_exynos4412()) { + if (soc_is_exynos4412() || soc_is_exynos4212()) { /* Setting SEQ_OPTION register */ pmu_raw_writel(S5P_USE_STANDBY_WFI0 | S5P_USE_STANDBY_WFE0, S5P_CENTRAL_SEQ_OPTION); diff --git a/arch/arm/mach-exynos/suspend.c b/arch/arm/mach-exynos/suspend.c index 3bf14ca78b62..df1e10033f90 100644 --- a/arch/arm/mach-exynos/suspend.c +++ b/arch/arm/mach-exynos/suspend.c @@ -231,6 +231,7 @@ static int __init exynos_pmu_irq_init(struct device_node *node, EXYNOS_PMU_IRQ(exynos3250_pmu_irq, "samsung,exynos3250-pmu"); EXYNOS_PMU_IRQ(exynos4210_pmu_irq, "samsung,exynos4210-pmu"); +EXYNOS_PMU_IRQ(exynos4212_pmu_irq, "samsung,exynos4212-pmu"); EXYNOS_PMU_IRQ(exynos4412_pmu_irq, "samsung,exynos4412-pmu"); EXYNOS_PMU_IRQ(exynos5250_pmu_irq, "samsung,exynos5250-pmu"); EXYNOS_PMU_IRQ(exynos5420_pmu_irq, "samsung,exynos5420-pmu"); @@ -640,6 +641,9 @@ static const struct of_device_id exynos_pmu_of_device_ids[] __initconst = { }, { .compatible = "samsung,exynos4210-pmu", .data = &exynos4_pm_data, + }, { + .compatible = "samsung,exynos4212-pmu", + .data = &exynos4_pm_data, }, { .compatible = "samsung,exynos4412-pmu", .data = &exynos4_pm_data,