From: Pankaj Dubey <pankaj.dubey@samsung.com> To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: rmk+kernel@armlinux.org.uk, arnd@arndb.de, horms@verge.net.au, magnus.damm@gmail.com, geert+renesas@glider.be, vireshk@kernel.org, shiraz.linux.kernel@gmail.com, krzk@kernel.org, thomas.ab@samsung.com, Pankaj Dubey <pankaj.dubey@samsung.com>, Russell King <linux@armlinux.org.uk> Subject: [PATCH 04/16] ARM: realview: use generic API for enabling SCU Date: Mon, 14 Nov 2016 10:31:59 +0530 [thread overview] Message-ID: <1479099731-28108-5-git-send-email-pankaj.dubey@samsung.com> (raw) In-Reply-To: <1479099731-28108-1-git-send-email-pankaj.dubey@samsung.com> Now as we have of_scu_enable which takes care of mapping scu base from DT, lets use it. Also this patch removes computation of number of cores from SCU, as for DT platform it will be taken care from DT CPU device nodes. CC: Russell King <linux@armlinux.org.uk> Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> --- arch/arm/mach-realview/platsmp-dt.c | 29 +++++++++-------------------- 1 file changed, 9 insertions(+), 20 deletions(-) diff --git a/arch/arm/mach-realview/platsmp-dt.c b/arch/arm/mach-realview/platsmp-dt.c index 70ca99e..b2dbf77 100644 --- a/arch/arm/mach-realview/platsmp-dt.c +++ b/arch/arm/mach-realview/platsmp-dt.c @@ -23,8 +23,6 @@ static const struct of_device_id realview_scu_match[] = { { .compatible = "arm,arm11mp-scu", }, - { .compatible = "arm,cortex-a9-scu", }, - { .compatible = "arm,cortex-a5-scu", }, { } }; @@ -41,27 +39,18 @@ static void __init realview_smp_prepare_cpus(unsigned int max_cpus) struct device_node *np; void __iomem *scu_base; struct regmap *map; - unsigned int ncores; int i; - np = of_find_matching_node(NULL, realview_scu_match); - if (!np) { - pr_err("PLATSMP: No SCU base address\n"); - return; + if (of_scu_enable()) { + np = of_find_matching_node(NULL, realview_scu_match); + scu_base = of_iomap(np, 0); + of_node_put(np); + if (!scu_base) { + pr_err("PLATSMP: No SCU remap\n"); + return; + } + scu_enable(scu_base); } - scu_base = of_iomap(np, 0); - of_node_put(np); - if (!scu_base) { - pr_err("PLATSMP: No SCU remap\n"); - return; - } - - scu_enable(scu_base); - ncores = scu_get_core_count(scu_base); - pr_info("SCU: %d cores detected\n", ncores); - for (i = 0; i < ncores; i++) - set_cpu_possible(i, true); - iounmap(scu_base); /* The syscon contains the magic SMP start address registers */ np = of_find_matching_node(NULL, realview_syscon_match); -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: pankaj.dubey@samsung.com (Pankaj Dubey) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 04/16] ARM: realview: use generic API for enabling SCU Date: Mon, 14 Nov 2016 10:31:59 +0530 [thread overview] Message-ID: <1479099731-28108-5-git-send-email-pankaj.dubey@samsung.com> (raw) In-Reply-To: <1479099731-28108-1-git-send-email-pankaj.dubey@samsung.com> Now as we have of_scu_enable which takes care of mapping scu base from DT, lets use it. Also this patch removes computation of number of cores from SCU, as for DT platform it will be taken care from DT CPU device nodes. CC: Russell King <linux@armlinux.org.uk> Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> --- arch/arm/mach-realview/platsmp-dt.c | 29 +++++++++-------------------- 1 file changed, 9 insertions(+), 20 deletions(-) diff --git a/arch/arm/mach-realview/platsmp-dt.c b/arch/arm/mach-realview/platsmp-dt.c index 70ca99e..b2dbf77 100644 --- a/arch/arm/mach-realview/platsmp-dt.c +++ b/arch/arm/mach-realview/platsmp-dt.c @@ -23,8 +23,6 @@ static const struct of_device_id realview_scu_match[] = { { .compatible = "arm,arm11mp-scu", }, - { .compatible = "arm,cortex-a9-scu", }, - { .compatible = "arm,cortex-a5-scu", }, { } }; @@ -41,27 +39,18 @@ static void __init realview_smp_prepare_cpus(unsigned int max_cpus) struct device_node *np; void __iomem *scu_base; struct regmap *map; - unsigned int ncores; int i; - np = of_find_matching_node(NULL, realview_scu_match); - if (!np) { - pr_err("PLATSMP: No SCU base address\n"); - return; + if (of_scu_enable()) { + np = of_find_matching_node(NULL, realview_scu_match); + scu_base = of_iomap(np, 0); + of_node_put(np); + if (!scu_base) { + pr_err("PLATSMP: No SCU remap\n"); + return; + } + scu_enable(scu_base); } - scu_base = of_iomap(np, 0); - of_node_put(np); - if (!scu_base) { - pr_err("PLATSMP: No SCU remap\n"); - return; - } - - scu_enable(scu_base); - ncores = scu_get_core_count(scu_base); - pr_info("SCU: %d cores detected\n", ncores); - for (i = 0; i < ncores; i++) - set_cpu_possible(i, true); - iounmap(scu_base); /* The syscon contains the magic SMP start address registers */ np = of_find_matching_node(NULL, realview_syscon_match); -- 2.7.4
next prev parent reply other threads:[~2016-11-14 4:59 UTC|newest] Thread overview: 97+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-11-14 5:01 [PATCH 00/16] Provide support of generic function for SCU enable Pankaj Dubey 2016-11-14 5:01 ` Pankaj Dubey 2016-11-14 5:01 ` [PATCH 01/16] ARM: scu: Provide support for parsing SCU device node to enable SCU Pankaj Dubey 2016-11-14 5:01 ` Pankaj Dubey 2016-11-14 6:12 ` Jisheng Zhang 2016-11-14 6:12 ` Jisheng Zhang 2016-11-14 6:54 ` Jisheng Zhang 2016-11-14 6:54 ` Jisheng Zhang 2016-11-14 8:23 ` pankaj.dubey 2016-11-14 8:23 ` pankaj.dubey 2016-11-14 8:47 ` Jisheng Zhang 2016-11-14 8:47 ` Jisheng Zhang 2016-11-14 8:40 ` pankaj.dubey 2016-11-14 8:40 ` pankaj.dubey 2016-11-14 12:03 ` Arnd Bergmann 2016-11-14 12:03 ` Arnd Bergmann 2016-11-14 13:50 ` Russell King - ARM Linux 2016-11-14 13:50 ` Russell King - ARM Linux 2016-11-14 14:37 ` Arnd Bergmann 2016-11-14 14:37 ` Arnd Bergmann 2016-11-14 14:51 ` Russell King - ARM Linux 2016-11-14 14:51 ` Russell King - ARM Linux 2016-11-17 4:20 ` pankaj.dubey 2016-11-17 4:20 ` pankaj.dubey 2016-11-17 17:03 ` Arnd Bergmann 2016-11-17 17:03 ` Arnd Bergmann 2016-11-18 3:24 ` pankaj.dubey 2016-11-18 3:24 ` pankaj.dubey 2016-11-18 12:14 ` Arnd Bergmann 2016-11-18 12:14 ` Arnd Bergmann 2016-11-18 12:48 ` Russell King - ARM Linux 2016-11-18 12:48 ` Russell King - ARM Linux 2016-11-18 13:32 ` Arnd Bergmann 2016-11-18 13:32 ` Arnd Bergmann 2016-12-08 15:18 ` Pankaj Dubey 2016-12-08 15:18 ` Pankaj Dubey 2016-11-14 13:48 ` Russell King - ARM Linux 2016-11-14 13:48 ` Russell King - ARM Linux 2016-11-17 2:22 ` pankaj.dubey 2016-11-17 2:22 ` pankaj.dubey 2016-11-14 5:01 ` [PATCH 02/16] ARM: EXYNOS: use generic API " Pankaj Dubey 2016-11-14 5:01 ` Pankaj Dubey 2016-11-14 5:01 ` Pankaj Dubey 2016-11-15 18:59 ` Krzysztof Kozlowski 2016-11-15 18:59 ` Krzysztof Kozlowski 2016-11-17 2:15 ` pankaj.dubey 2016-11-17 2:15 ` pankaj.dubey 2016-11-14 5:01 ` [PATCH 03/16] ARM: berlin: use generic API for enabling SCU Pankaj Dubey 2016-11-14 5:01 ` Pankaj Dubey 2016-11-14 8:51 ` Jisheng Zhang 2016-11-14 8:51 ` Jisheng Zhang 2016-11-14 16:20 ` Pankaj Dubey 2016-11-14 16:20 ` Pankaj Dubey 2016-11-14 5:01 ` Pankaj Dubey [this message] 2016-11-14 5:01 ` [PATCH 04/16] ARM: realview: " Pankaj Dubey 2016-11-14 11:56 ` Arnd Bergmann 2016-11-14 11:56 ` Arnd Bergmann 2016-11-14 12:06 ` pankaj.dubey 2016-11-14 12:06 ` pankaj.dubey 2016-11-14 14:28 ` Arnd Bergmann 2016-11-14 14:28 ` Arnd Bergmann 2016-11-14 13:19 ` Pankaj Dubey 2016-11-14 13:19 ` Pankaj Dubey 2016-11-14 5:02 ` [PATCH 05/16] ARM: socfpga: " Pankaj Dubey 2016-11-14 5:02 ` Pankaj Dubey 2016-11-14 5:02 ` [PATCH 06/16] ARM: STi: " Pankaj Dubey 2016-11-14 5:02 ` Pankaj Dubey 2016-11-14 5:02 ` [PATCH 07/16] ARM: ux500: " Pankaj Dubey 2016-11-14 5:02 ` Pankaj Dubey 2016-11-14 5:02 ` [PATCH 08/16] ARM: vexpress: " Pankaj Dubey 2016-11-14 5:02 ` Pankaj Dubey 2016-11-16 14:34 ` Sudeep Holla 2016-11-16 14:34 ` Sudeep Holla 2016-11-17 2:12 ` pankaj.dubey 2016-11-17 2:12 ` pankaj.dubey 2016-11-14 5:02 ` [PATCH 09/16] ARM: BCM: " Pankaj Dubey 2016-11-14 5:02 ` Pankaj Dubey 2016-11-14 6:10 ` Florian Fainelli 2016-11-14 6:10 ` Florian Fainelli 2016-11-14 5:02 ` [PATCH 10/16] ARM: tegra: " Pankaj Dubey 2016-11-14 5:02 ` Pankaj Dubey 2016-11-14 5:02 ` [PATCH 11/16] ARM: rockchip: " Pankaj Dubey 2016-11-14 5:02 ` Pankaj Dubey 2016-11-14 5:02 ` [PATCH 12/16] ARM: imx: " Pankaj Dubey 2016-11-14 5:02 ` Pankaj Dubey 2016-11-14 14:26 ` Shawn Guo 2016-11-14 14:26 ` Shawn Guo 2016-11-17 4:29 ` pankaj.dubey 2016-11-17 4:29 ` pankaj.dubey 2016-11-14 5:02 ` [PATCH 13/16] ARM: zynq: " Pankaj Dubey 2016-11-14 5:02 ` Pankaj Dubey 2016-11-14 5:02 ` [PATCH 14/16] ARM: hisi: " Pankaj Dubey 2016-11-14 5:02 ` Pankaj Dubey 2016-11-14 5:02 ` [PATCH 15/16] ARM: mvebu: " Pankaj Dubey 2016-11-14 5:02 ` Pankaj Dubey 2016-11-14 5:02 ` [PATCH 16/16] ARM: zx: " Pankaj Dubey 2016-11-14 5:02 ` Pankaj Dubey
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