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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH 03/14] ARM: Layerscape: ls1046a: Add bootsource detection support
Date: Fri, 10 May 2019 08:21:24 +0200	[thread overview]
Message-ID: <20190510062135.11534-4-s.hauer@pengutronix.de> (raw)
In-Reply-To: <20190510062135.11534-1-s.hauer@pengutronix.de>

Not much to do, there are only a few boot sources supported.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/arm/mach-layerscape/Makefile             |  1 +
 arch/arm/mach-layerscape/boot.c               | 39 +++++++++++++++++++
 .../mach-layerscape/include/mach/layerscape.h |  2 +
 3 files changed, 42 insertions(+)
 create mode 100644 arch/arm/mach-layerscape/boot.c

diff --git a/arch/arm/mach-layerscape/Makefile b/arch/arm/mach-layerscape/Makefile
index 269839254b..ad4e2f7af3 100644
--- a/arch/arm/mach-layerscape/Makefile
+++ b/arch/arm/mach-layerscape/Makefile
@@ -2,3 +2,4 @@ obj- := __dummy__.o
 lwl-y += lowlevel.o errata.o
 lwl-$(CONFIG_ARCH_LS1046) += lowlevel-ls1046a.o
 obj-y += icid.o
+obj-pbl-y += boot.o
diff --git a/arch/arm/mach-layerscape/boot.c b/arch/arm/mach-layerscape/boot.c
new file mode 100644
index 0000000000..c804977d22
--- /dev/null
+++ b/arch/arm/mach-layerscape/boot.c
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <common.h>
+#include <init.h>
+#include <bootsource.h>
+#include <mach/layerscape.h>
+#include <soc/fsl/immap_lsch2.h>
+
+enum bootsource ls1046_bootsource_get(void)
+{
+	void __iomem *dcfg = IOMEM(LSCH2_DCFG_ADDR);
+	uint32_t rcw_src;
+
+	rcw_src = in_be32(dcfg) >> 23;
+
+	if (rcw_src == 0x40)
+		return BOOTSOURCE_MMC;
+	if ((rcw_src & 0x1fe) == 0x44)
+		return BOOTSOURCE_SPI_NOR;
+	if ((rcw_src & 0x1f0) == 0x10)
+		/* 8bit NOR Flash */
+		return BOOTSOURCE_NOR;
+	if ((rcw_src & 0x1f0) == 0x20)
+		/* 16bit NOR Flash */
+		return BOOTSOURCE_NOR;
+
+	return BOOTSOURCE_UNKNOWN;
+}
+
+static int ls1046a_bootsource_init(void)
+{
+	if (!of_machine_is_compatible("fsl,ls1046a"))
+		return 0;
+
+	bootsource_set(ls1046_bootsource_get());
+
+	return 0;
+}
+coredevice_initcall(ls1046a_bootsource_init);
\ No newline at end of file
diff --git a/arch/arm/mach-layerscape/include/mach/layerscape.h b/arch/arm/mach-layerscape/include/mach/layerscape.h
index 55e0b7bc96..3366e7f258 100644
--- a/arch/arm/mach-layerscape/include/mach/layerscape.h
+++ b/arch/arm/mach-layerscape/include/mach/layerscape.h
@@ -4,4 +4,6 @@
 #define LS1046A_DDR_SDRAM_BASE	0x80000000
 #define LS1046A_DDR_FREQ	2100000000
 
+enum bootsource ls1046_bootsource_get(void);
+
 #endif /* __MACH_LAYERSCAPE_H */
-- 
2.20.1


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  parent reply	other threads:[~2019-05-10  6:21 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-10  6:21 [PATCH 00/14] More Layerscape patches Sascha Hauer
2019-05-10  6:21 ` [PATCH 01/14] bbu: In bbu_register_std_file_update detect device before accessing it Sascha Hauer
2019-05-10  6:21 ` [PATCH 02/14] esdhc-xload: invalidate icache before jumping to image Sascha Hauer
2019-05-10  6:21 ` Sascha Hauer [this message]
2019-05-10  6:21 ` [PATCH 04/14] ARM: Layerscape: pblimage: Drop pbl end command Sascha Hauer
2019-05-10  6:21 ` [PATCH 05/14] ARM: Layerscape: Add QSPI boot support Sascha Hauer
2019-05-10  6:21 ` [PATCH 06/14] ARM: Layerscape: ls1046a: Add automatic bootsource detection xload function Sascha Hauer
2019-05-10  6:21 ` [PATCH 07/14] ARM: Layerscape: ls1046a: Add bbu handlers Sascha Hauer
2019-05-10  6:21 ` [PATCH 08/14] ARM: Layerscape: TQMLS1046a: configure qspi divider Sascha Hauer
2019-05-10  6:21 ` [PATCH 09/14] ARM: Layerscape: TQMLS1046a: Sync qspi RCW from TQ U-Boot Sascha Hauer
2019-05-10  6:21 ` [PATCH 10/14] ARM: Layerscape: TQMLS1046a: print life signs when debugging Sascha Hauer
2019-05-10  6:21 ` [PATCH 11/14] ARM: Layerscape: TQMLS1046a: unify pbi files Sascha Hauer
2019-05-10  6:21 ` [PATCH 12/14] ARM: Layerscape: TQMLS1046a: Support booting from QSPI Sascha Hauer
2019-05-10  6:21 ` [PATCH 13/14] ARM: Layerscape: TQMLS1046a: Add environment and update handlers Sascha Hauer
2019-05-10  6:21 ` [PATCH 14/14] ARM: Layerscape: Add device tree compatible to image metadata Sascha Hauer

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