treewide: remove files for building 5.10 kernel

[openwrt/staging/stintel.git] / target / linux / at91 / patches-5.10 / 228-ARM-at91-pm-switch-backup-area-to-vbat-in-backup-mod.patch

diff --git a/target/linux/at91/patches-5.10/228-ARM-at91-pm-switch-backup-area-to-vbat-in-backup-mod.patch b/target/linux/at91/patches-5.10/228-ARM-at91-pm-switch-backup-area-to-vbat-in-backup-mod.patch
deleted file mode 100644 (file)
index 02532b4..0000000
--- a/target/linux/at91/patches-5.10/228-ARM-at91-pm-switch-backup-area-to-vbat-in-backup-mod.patch
+++ /dev/null
@@ -1,117 +0,0 @@
-From 2cd84ddf0e9623c6bc723b1df368cd8b16a3a8e2 Mon Sep 17 00:00:00 2001
-From: Claudiu Beznea <claudiu.beznea@microchip.com>
-Date: Mon, 30 Aug 2021 13:09:27 +0300
-Subject: [PATCH 228/247] ARM: at91: pm: switch backup area to vbat in backup
- mode
-
-Backup area is now switched to VDDIN33 at boot (with the help of
-bootloader). When switching to backup mode we need to switch backup area
-to VBAT as all the other power sources are cut off. The resuming from
-backup mode is done with the help of bootloader, so there is no need to
-do something particular in Linux to restore backup area power source.
-
-Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
-Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
-Link: https://lore.kernel.org/r/20210830100927.22711-1-claudiu.beznea@microchip.com
----
- arch/arm/mach-at91/pm.c | 52 +++++++++++++++++++++++++++++++++++++++++
- 1 file changed, 52 insertions(+)
-
---- a/arch/arm/mach-at91/pm.c
-+++ b/arch/arm/mach-at91/pm.c
-@@ -47,12 +47,26 @@ struct at91_pm_bu {
-       unsigned long ddr_phy_calibration[BACKUP_DDR_PHY_CALIBRATION];
- };
- 
-+/*
-+ * struct at91_pm_sfrbu_offsets: registers mapping for SFRBU
-+ * @pswbu: power switch BU control registers
-+ */
-+struct at91_pm_sfrbu_regs {
-+      struct {
-+              u32 key;
-+              u32 ctrl;
-+              u32 state;
-+              u32 softsw;
-+      } pswbu;
-+};
-+
- /**
-  * struct at91_soc_pm - AT91 SoC power management data structure
-  * @config_shdwc_ws: wakeup sources configuration function for SHDWC
-  * @config_pmc_ws: wakeup srouces configuration function for PMC
-  * @ws_ids: wakup sources of_device_id array
-  * @data: PM data to be used on last phase of suspend
-+ * @sfrbu_regs: SFRBU registers mapping
-  * @bu: backup unit mapped data (for backup mode)
-  * @memcs: memory chip select
-  */
-@@ -62,6 +76,7 @@ struct at91_soc_pm {
-       const struct of_device_id *ws_ids;
-       struct at91_pm_bu *bu;
-       struct at91_pm_data data;
-+      struct at91_pm_sfrbu_regs sfrbu_regs;
-       void *memcs;
- };
- 
-@@ -356,9 +371,36 @@ static int at91_suspend_finish(unsigned
-       return 0;
- }
- 
-+static void at91_pm_switch_ba_to_vbat(void)
-+{
-+      unsigned int offset = offsetof(struct at91_pm_sfrbu_regs, pswbu);
-+      unsigned int val;
-+
-+      /* Just for safety. */
-+      if (!soc_pm.data.sfrbu)
-+              return;
-+
-+      val = readl(soc_pm.data.sfrbu + offset);
-+
-+      /* Already on VBAT. */
-+      if (!(val & soc_pm.sfrbu_regs.pswbu.state))
-+              return;
-+
-+      val &= ~soc_pm.sfrbu_regs.pswbu.softsw;
-+      val |= soc_pm.sfrbu_regs.pswbu.key | soc_pm.sfrbu_regs.pswbu.ctrl;
-+      writel(val, soc_pm.data.sfrbu + offset);
-+
-+      /* Wait for update. */
-+      val = readl(soc_pm.data.sfrbu + offset);
-+      while (val & soc_pm.sfrbu_regs.pswbu.state)
-+              val = readl(soc_pm.data.sfrbu + offset);
-+}
-+
- static void at91_pm_suspend(suspend_state_t state)
- {
-       if (soc_pm.data.mode == AT91_PM_BACKUP) {
-+              at91_pm_switch_ba_to_vbat();
-+
-               cpu_suspend(0, at91_suspend_finish);
- 
-               /* The SRAM is lost between suspend cycles */
-@@ -1155,6 +1197,11 @@ void __init sama5d2_pm_init(void)
-       soc_pm.ws_ids = sama5d2_ws_ids;
-       soc_pm.config_shdwc_ws = at91_sama5d2_config_shdwc_ws;
-       soc_pm.config_pmc_ws = at91_sama5d2_config_pmc_ws;
-+
-+      soc_pm.sfrbu_regs.pswbu.key = (0x4BD20C << 8);
-+      soc_pm.sfrbu_regs.pswbu.ctrl = BIT(0);
-+      soc_pm.sfrbu_regs.pswbu.softsw = BIT(1);
-+      soc_pm.sfrbu_regs.pswbu.state = BIT(3);
- }
- 
- void __init sama7_pm_init(void)
-@@ -1185,6 +1232,11 @@ void __init sama7_pm_init(void)
- 
-       soc_pm.ws_ids = sama7g5_ws_ids;
-       soc_pm.config_pmc_ws = at91_sam9x60_config_pmc_ws;
-+
-+      soc_pm.sfrbu_regs.pswbu.key = (0x4BD20C << 8);
-+      soc_pm.sfrbu_regs.pswbu.ctrl = BIT(0);
-+      soc_pm.sfrbu_regs.pswbu.softsw = BIT(1);
-+      soc_pm.sfrbu_regs.pswbu.state = BIT(2);
- }
- 
- static int __init at91_pm_modes_select(char *str)