From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: barebox@lists.infradead.org
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Subject: [PATCH v2 18/19] ARM: VFxxx: Implement code to detect bootsource
Date: Mon, 16 Apr 2018 12:31:56 -0700 [thread overview]
Message-ID: <20180416193157.16094-19-andrew.smirnov@gmail.com> (raw)
In-Reply-To: <20180416193157.16094-1-andrew.smirnov@gmail.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
---
arch/arm/mach-imx/boot.c | 91 ++++++++++++++++++++++++++++++++
arch/arm/mach-imx/include/mach/generic.h | 2 +
2 files changed, 93 insertions(+)
diff --git a/arch/arm/mach-imx/boot.c b/arch/arm/mach-imx/boot.c
index 3f67c2510..f8a04d8f3 100644
--- a/arch/arm/mach-imx/boot.c
+++ b/arch/arm/mach-imx/boot.c
@@ -27,6 +27,7 @@
#include <mach/imx53-regs.h>
#include <mach/imx6-regs.h>
#include <mach/imx7-regs.h>
+#include <mach/vf610-regs.h>
/* [CTRL][TYPE] */
static const enum bootsource locations[4][4] = {
@@ -474,6 +475,95 @@ void imx7_get_boot_source(enum bootsource *src, int *instance)
}
}
+static int vf610_boot_instance_spi(uint32_t r)
+{
+ return FIELD_GET(BOOT_CFG1_1, r);
+}
+
+static int vf610_boot_instance_nor(uint32_t r)
+{
+ return FIELD_GET(BOOT_CFG1_3, r);
+}
+
+/*
+ * Vybrid's Serial ROM boot sources (BOOT_CFG4[2:0]) are as follows:
+ *
+ * 000 - SPI0
+ * 001 - SPI1
+ * 010 - SPI2
+ * 011 - SPI3
+ * 100 - I2C0
+ * 101 - I2C1
+ * 110 - I2C2
+ * 111 - I2C3
+ *
+ * Which we can neatly divide in two halves and use MSb to detect if
+ * bootsource is I2C or SPI EEPROM and 2 LSbs directly as boot
+ * insance.
+ */
+static enum bootsource vf610_bootsource_serial_rom(uint32_t r)
+{
+ return FIELD_GET(BOOT_CFG4_2, r) ? BOOTSOURCE_I2C : BOOTSOURCE_SPI_NOR;
+}
+
+static int vf610_boot_instance_serial_rom(uint32_t r)
+{
+ return __imx6_bootsource_serial_rom(r) & 0b11;
+}
+
+static int vf610_boot_instance_can(uint32_t r)
+{
+ return FIELD_GET(BOOT_CFG1_0, r);
+}
+
+static int vf610_boot_instance_mmc(uint32_t r)
+{
+ return FIELD_GET(BOOT_CFG2_3, r);
+}
+
+void vf610_get_boot_source(enum bootsource *src, int *instance)
+{
+ void __iomem *src_base = IOMEM(VF610_SRC_BASE_ADDR);
+ uint32_t sbmr1 = readl(src_base + IMX6_SRC_SBMR1);
+ uint32_t sbmr2 = readl(src_base + IMX6_SRC_SBMR2);
+
+ if (imx6_bootsource_reserved(sbmr2))
+ return;
+
+ if (imx6_bootsource_serial(sbmr2)) {
+ *src = BOOTSOURCE_SERIAL;
+ return;
+ }
+
+ switch (imx53_bootsource_internal(sbmr1)) {
+ case 0:
+ *src = BOOTSOURCE_SPI; /* Really: qspi */
+ *instance = vf610_boot_instance_spi(sbmr1);
+ break;
+ case 1:
+ *src = BOOTSOURCE_NOR;
+ *instance = vf610_boot_instance_nor(sbmr1);
+ break;
+ case 2:
+ *src = vf610_bootsource_serial_rom(sbmr1);
+ *instance = vf610_boot_instance_serial_rom(sbmr1);
+ break;
+ case 3:
+ *src = BOOTSOURCE_CAN;
+ *instance = vf610_boot_instance_can(sbmr1);
+ break;
+ case 6:
+ case 7:
+ *src = BOOTSOURCE_MMC;
+ *instance = vf610_boot_instance_mmc(sbmr1);
+ break;
+ default:
+ if (imx53_bootsource_nand(sbmr1))
+ *src = BOOTSOURCE_NAND;
+ break;
+ }
+}
+
static void
imx_boot_save_loc(void (*get_boot_source)(enum bootsource *, int *))
{
@@ -499,3 +589,4 @@ IMX_BOOT_SAVE_LOC(imx51)
IMX_BOOT_SAVE_LOC(imx53)
IMX_BOOT_SAVE_LOC(imx6)
IMX_BOOT_SAVE_LOC(imx7)
+IMX_BOOT_SAVE_LOC(vf610)
diff --git a/arch/arm/mach-imx/include/mach/generic.h b/arch/arm/mach-imx/include/mach/generic.h
index cb5675185..ad9d9cb02 100644
--- a/arch/arm/mach-imx/include/mach/generic.h
+++ b/arch/arm/mach-imx/include/mach/generic.h
@@ -15,6 +15,7 @@ void imx51_boot_save_loc(void);
void imx53_boot_save_loc(void);
void imx6_boot_save_loc(void);
void imx7_boot_save_loc(void);
+void vf610_boot_save_loc(void);
void imx25_get_boot_source(enum bootsource *src, int *instance);
void imx35_get_boot_source(enum bootsource *src, int *instance);
@@ -22,6 +23,7 @@ void imx51_get_boot_source(enum bootsource *src, int *instance);
void imx53_get_boot_source(enum bootsource *src, int *instance);
void imx6_get_boot_source(enum bootsource *src, int *instance);
void imx7_get_boot_source(enum bootsource *src, int *instance);
+void vf610_get_boot_source(enum bootsource *src, int *instance);
int imx1_init(void);
int imx21_init(void);
--
2.14.3
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next prev parent reply other threads:[~2018-04-16 19:32 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-16 19:31 [PATCH v2 00/19] i.MX bootsource bugfixes, refactoring and VFxxx support Andrey Smirnov
2018-04-16 19:31 ` [PATCH v2 01/19] ARM: i.MX: boot: Coalesce copy-pasted code Andrey Smirnov
2018-04-17 6:58 ` Sascha Hauer
2018-04-17 15:20 ` Andrey Smirnov
2018-04-18 8:15 ` Sascha Hauer
2018-04-19 22:26 ` Andrey Smirnov
2018-04-16 19:31 ` [PATCH v2 02/19] include: Port linux/build_bug.h from Linux kernel Andrey Smirnov
2018-04-16 19:31 ` [PATCH v2 03/19] include: Port linux/bitfield.h " Andrey Smirnov
2018-04-16 19:31 ` [PATCH v2 04/19] ARM: i.MX: Add a function to extract BMOD value Andrey Smirnov
2018-04-16 19:31 ` [PATCH v2 05/19] ARM: i.MX: Simplify serial bootsource detection for i.MX6 and 7 Andrey Smirnov
2018-04-16 19:31 ` [PATCH v2 06/19] ARM: i.MX: Account for unprogrammed fuses on i.MX6 and i.MX7 Andrey Smirnov
2018-04-16 19:31 ` [PATCH v2 07/19] ARM: i.MX7: boot: Add code to handle SD/MMC manufacture mode Andrey Smirnov
2018-04-16 19:31 ` [PATCH v2 08/19] ARM: i.MX7: boot: Remove incorrect NAND bootsource detection Andrey Smirnov
2018-04-16 19:31 ` [PATCH v2 09/19] ARM: i.MX7: boot: Fix SPI-NOR/QSPI boot source mixup Andrey Smirnov
2018-04-16 19:31 ` [PATCH v2 10/19] ARM: i.MX: boot: Remove unnecessary returns Andrey Smirnov
2018-04-16 19:31 ` [PATCH v2 11/19] ARM: i.MX: boot: Move magic values into small functions Andrey Smirnov
2018-04-16 19:31 ` [PATCH v2 12/19] ARM: i.MX: boot: Share code to detect NAND as a boot source Andrey Smirnov
2018-04-16 19:31 ` [PATCH v2 13/19] ARM: i.MX: boot: Check for NAND boot only if necessary on i.MX53, 6 Andrey Smirnov
2018-04-16 19:31 ` [PATCH v2 14/19] ARM: i.MX53: boot: Move magic numbers info utility functions Andrey Smirnov
2018-04-16 19:31 ` [PATCH v2 15/19] ARM: i.MX6: boot: Move magic numbers into " Andrey Smirnov
2018-04-16 19:31 ` [PATCH v2 16/19] ARM: i.MX7: " Andrey Smirnov
2018-04-16 19:31 ` [PATCH v2 17/19] bootsource: Add BOOTSOURCE_CAN Andrey Smirnov
2018-04-16 19:31 ` Andrey Smirnov [this message]
2018-04-16 19:31 ` [PATCH v2 19/19] ARM: i.MX6: boot: Return BOOTSOURCE_SPI_NOR, not BOOTSOURCE_SPI Andrey Smirnov
2018-04-17 7:24 ` [PATCH v2 00/19] i.MX bootsource bugfixes, refactoring and VFxxx support Sascha Hauer
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