From: Ley Foon Tan <ley.foon.tan@intel.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 09/10] arm: socfpga: stratix10: Add cpu_has_been_warmreset()
Date: Tue, 12 Mar 2019 16:31:13 +0800 [thread overview]
Message-ID: <1552379474-12867-10-git-send-email-ley.foon.tan@intel.com> (raw)
In-Reply-To: <1552379474-12867-1-git-send-email-ley.foon.tan@intel.com>
Add helper function cpu_has_been_warmreset() to check
if CPU is from warm reset boot.
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
---
arch/arm/mach-socfpga/include/mach/reset_manager_s10.h | 3 +++
arch/arm/mach-socfpga/reset_manager_s10.c | 9 +++++++++
2 files changed, 12 insertions(+)
diff --git a/arch/arm/mach-socfpga/include/mach/reset_manager_s10.h b/arch/arm/mach-socfpga/include/mach/reset_manager_s10.h
index 31b73edabe..e186296791 100644
--- a/arch/arm/mach-socfpga/include/mach/reset_manager_s10.h
+++ b/arch/arm/mach-socfpga/include/mach/reset_manager_s10.h
@@ -9,6 +9,7 @@
void reset_cpu(ulong addr);
void reset_deassert_peripherals_handoff(void);
+int cpu_has_been_warmreset(void);
void socfpga_bridges_reset(int enable);
@@ -47,6 +48,8 @@ struct socfpga_reset_manager {
#define RSTMGR_MPUMODRST_CORE0 0
#define RSTMGR_PER0MODRST_OCP_MASK 0x0020bf00
#define RSTMGR_BRGMODRST_DDRSCH_MASK 0X00000040
+/* Watchdogs and MPU warm reset mask */
+#define RSTMGR_L4WD_MPU_WARMRESET_MASK 0x000F0F00
/*
* Define a reset identifier, from which a permodrst bank ID
diff --git a/arch/arm/mach-socfpga/reset_manager_s10.c b/arch/arm/mach-socfpga/reset_manager_s10.c
index f176c38495..f8dd787cc6 100644
--- a/arch/arm/mach-socfpga/reset_manager_s10.c
+++ b/arch/arm/mach-socfpga/reset_manager_s10.c
@@ -103,3 +103,12 @@ void reset_deassert_peripherals_handoff(void)
writel(~RSTMGR_PER0MODRST_OCP_MASK, &reset_manager_base->per0modrst);
writel(0, &reset_manager_base->per0modrst);
}
+
+/*
+ * Return non-zero if the CPU has been warm reset
+ */
+int cpu_has_been_warmreset(void)
+{
+ return readl(&reset_manager_base->status) &
+ RSTMGR_L4WD_MPU_WARMRESET_MASK;
+}
--
2.19.0
next prev parent reply other threads:[~2019-03-12 8:31 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-12 8:31 [U-Boot] [PATCH 00/10] Update Stratix 10 SDRAM driver Ley Foon Tan
2019-03-12 8:31 ` [U-Boot] [PATCH 01/10] ddr: altera: stratix10: Move SDRAM size check to " Ley Foon Tan
2019-03-12 10:41 ` Marek Vasut
2019-03-19 3:26 ` Ley Foon Tan
2019-03-19 8:55 ` Marek Vasut
2019-03-19 9:46 ` Ley Foon Tan
2019-03-19 9:47 ` Marek Vasut
2019-03-20 1:30 ` Ley Foon Tan
2019-03-20 9:41 ` Marek Vasut
2019-03-21 5:59 ` Ley Foon Tan
2019-03-12 8:31 ` [U-Boot] [PATCH 02/10] arm: socfpga: Add sdram_s10.h to sdram.h Ley Foon Tan
2019-03-12 8:31 ` [U-Boot] [PATCH 03/10] ddr: altera: s10: Add multiple memory banks support Ley Foon Tan
2019-03-12 10:44 ` Marek Vasut
2019-03-12 14:05 ` Westergreen, Dalon
2019-03-13 7:28 ` Ley Foon Tan
2019-03-13 9:14 ` Marek Vasut
2019-03-12 8:31 ` [U-Boot] [PATCH 04/10] arm: socfpga: Update dram_init_banksize() for Stratix10 Ley Foon Tan
2019-03-12 10:45 ` Marek Vasut
2019-03-12 14:25 ` Westergreen, Dalon
2019-03-12 8:31 ` [U-Boot] [PATCH 05/10] board: altera: Stratix10: Add board_get_usable_ram_top() Ley Foon Tan
2019-03-12 10:46 ` Marek Vasut
2019-03-12 14:33 ` Westergreen, Dalon
2019-03-12 14:40 ` Marek Vasut
2019-03-19 3:27 ` Ley Foon Tan
2019-03-12 8:31 ` [U-Boot] [PATCH 06/10] board: altera: Stratix10: Add ft_board_setup() Ley Foon Tan
2019-03-12 10:47 ` Marek Vasut
2019-03-19 3:28 ` Ley Foon Tan
2019-03-12 8:31 ` [U-Boot] [PATCH 07/10] arm: socfpga: Enable OF_BOARD_SETUP for Stratix 10 Ley Foon Tan
2019-03-12 8:31 ` [U-Boot] [PATCH 08/10] configs: stratix10: Change CONFIG_NR_DRAM_BANKS to 2 Ley Foon Tan
2019-03-12 8:31 ` Ley Foon Tan [this message]
2019-03-12 8:31 ` [U-Boot] [PATCH 10/10] ddr: altera: Stratix10: Add ECC memory scrubbing Ley Foon Tan
2019-03-12 10:49 ` Marek Vasut
2019-03-19 3:14 ` Ley Foon Tan
2019-03-19 8:57 ` Marek Vasut
2019-03-19 9:49 ` Ley Foon Tan
2019-03-19 12:20 ` Marek Vasut
2019-03-12 11:08 ` [U-Boot] [PATCH 00/10] Update Stratix 10 SDRAM driver Simon Goldschmidt
2019-03-13 18:17 ` Ley Foon Tan
2019-03-14 8:23 ` Simon Goldschmidt
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