diff options
Diffstat (limited to 'target/linux/layerscape/patches-4.4/8036-ls2085a-Add-support-for-reset.patch')
| -rw-r--r-- | target/linux/layerscape/patches-4.4/8036-ls2085a-Add-support-for-reset.patch | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/target/linux/layerscape/patches-4.4/8036-ls2085a-Add-support-for-reset.patch b/target/linux/layerscape/patches-4.4/8036-ls2085a-Add-support-for-reset.patch deleted file mode 100644 index 62420191b7..0000000000 --- a/target/linux/layerscape/patches-4.4/8036-ls2085a-Add-support-for-reset.patch +++ /dev/null @@ -1,135 +0,0 @@ -From 4b9227ba510562a51e87487905895aea97e17e77 Mon Sep 17 00:00:00 2001 -From: pankaj chauhan <pankaj.chauhan@freescale.com> -Date: Tue, 3 Feb 2015 13:08:52 +0530 -Subject: [PATCH 36/70] ls2085a: Add support for reset - -Add support for layerscape reset driver. -Reset is implemented by raising RESET_REQ_B. - -Signed-off-by: pankaj chauhan <pankaj.chauhan@freescale.com> -Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com> -(cherry picked from commit f248be3aea58ca32b7d77413d742996249b293e9) ---- - drivers/power/reset/Kconfig | 7 ++- - drivers/power/reset/Makefile | 1 + - drivers/power/reset/ls-reboot.c | 93 +++++++++++++++++++++++++++++++++++++++ - 3 files changed, 100 insertions(+), 1 deletion(-) - create mode 100644 drivers/power/reset/ls-reboot.c - ---- a/drivers/power/reset/Kconfig -+++ b/drivers/power/reset/Kconfig -@@ -173,5 +173,10 @@ config POWER_RESET_ZX - help - Reboot support for ZTE SoCs. - --endif -+config POWER_RESET_LAYERSCAPE -+ bool "Freescale LayerScape reset driver" -+ depends on ARCH_FSL_LS2085A -+ help -+ Reboot support for the Freescale LayerScape SoCs. - -+endif ---- a/drivers/power/reset/Makefile -+++ b/drivers/power/reset/Makefile -@@ -20,3 +20,4 @@ obj-$(CONFIG_POWER_RESET_SYSCON) += sysc - obj-$(CONFIG_POWER_RESET_SYSCON_POWEROFF) += syscon-poweroff.o - obj-$(CONFIG_POWER_RESET_RMOBILE) += rmobile-reset.o - obj-$(CONFIG_POWER_RESET_ZX) += zx-reboot.o -+obj-$(CONFIG_POWER_RESET_LAYERSCAPE) += ls-reboot.o ---- /dev/null -+++ b/drivers/power/reset/ls-reboot.c -@@ -0,0 +1,93 @@ -+/* -+ * Freescale LayerScape reboot driver -+ * -+ * Copyright (c) 2015, Freescale Semiconductor. -+ * Author: Pankaj Chauhan <pankaj.chauhan@freescale.com> -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program. If not, see <http://www.gnu.org/licenses/>. -+ */ -+ -+#include <linux/io.h> -+#include <linux/of_device.h> -+#include <linux/of_address.h> -+#include <linux/platform_device.h> -+#include <linux/stat.h> -+#include <linux/slab.h> -+#include <asm/system_misc.h> -+ -+struct ls_reboot_priv { -+ struct device *dev; -+ u32 *rstcr; -+}; -+ -+static struct ls_reboot_priv *ls_reboot_priv; -+ -+static void ls_reboot(enum reboot_mode reboot_mode, const char *cmd) -+{ -+ struct ls_reboot_priv *priv = ls_reboot_priv; -+ u32 val; -+ unsigned long timeout; -+ -+ if (ls_reboot_priv) { -+ val = readl(priv->rstcr); -+ val |= 0x02; -+ writel(val, priv->rstcr); -+ } -+ -+ timeout = jiffies + HZ; -+ while (time_before(jiffies, timeout)) -+ cpu_relax(); -+ -+} -+ -+static int ls_reboot_probe(struct platform_device *pdev) -+{ -+ ls_reboot_priv = devm_kzalloc(&pdev->dev, -+ sizeof(*ls_reboot_priv), GFP_KERNEL); -+ if (!ls_reboot_priv) { -+ dev_err(&pdev->dev, "out of memory for context\n"); -+ return -ENODEV; -+ } -+ -+ ls_reboot_priv->rstcr = of_iomap(pdev->dev.of_node, 0); -+ if (!ls_reboot_priv->rstcr) { -+ devm_kfree(&pdev->dev, ls_reboot_priv); -+ dev_err(&pdev->dev, "can not map resource\n"); -+ return -ENODEV; -+ } -+ -+ ls_reboot_priv->dev = &pdev->dev; -+ -+ arm_pm_restart = ls_reboot; -+ -+ return 0; -+} -+ -+static struct of_device_id ls_reboot_of_match[] = { -+ { .compatible = "fsl,ls-reset" }, -+ {} -+}; -+ -+static struct platform_driver ls_reboot_driver = { -+ .probe = ls_reboot_probe, -+ .driver = { -+ .name = "ls-reset", -+ .of_match_table = ls_reboot_of_match, -+ }, -+}; -+ -+static int __init ls_reboot_init(void) -+{ -+ return platform_driver_register(&ls_reboot_driver); -+} -+device_initcall(ls_reboot_init); |