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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH 11/42] ARM: i.MX8M: Detect serial downloader mode correctly
Date: Mon, 17 Feb 2020 13:45:52 +0100	[thread overview]
Message-ID: <20200217124623.14520-12-s.hauer@pengutronix.de> (raw)
In-Reply-To: <20200217124623.14520-1-s.hauer@pengutronix.de>

like the i.MX6 the i.MX7 and i.MX8M also have a SBMR2 register which
must be consulted for the BOOT_MODE[01] pins before internal bootmode
can be assumed.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/arm/mach-imx/boot.c | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-imx/boot.c b/arch/arm/mach-imx/boot.c
index 350355fb41..7d1af106d1 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/imx8mq-regs.h>
 #include <mach/vf610-regs.h>
 #include <mach/imx8mq.h>
 
@@ -444,10 +445,16 @@ struct imx_boot_sw_info {
 } __packed;
 
 static void __imx7_get_boot_source(enum bootsource *src, int *instance,
-				   unsigned long boot_sw_info_pointer_addr)
+				   unsigned long boot_sw_info_pointer_addr,
+				   uint32_t sbmr2)
 {
 	const struct imx_boot_sw_info *info;
 
+	if (imx6_bootsource_serial(sbmr2)) {
+		*src = BOOTSOURCE_SERIAL;
+		return;
+	}
+
 	info = (const void *)(unsigned long)
 		readl(boot_sw_info_pointer_addr);
 
@@ -477,7 +484,11 @@ static void __imx7_get_boot_source(enum bootsource *src, int *instance,
 
 void imx7_get_boot_source(enum bootsource *src, int *instance)
 {
-	__imx7_get_boot_source(src, instance, IMX7_BOOT_SW_INFO_POINTER_ADDR);
+	void __iomem *src_base = IOMEM(MX7_SRC_BASE_ADDR);
+	uint32_t sbmr2 = readl(src_base + 0x70);
+
+	__imx7_get_boot_source(src, instance, IMX7_BOOT_SW_INFO_POINTER_ADDR,
+			       sbmr2);
 }
 
 void imx7_boot_save_loc(void)
@@ -582,12 +593,14 @@ void vf610_boot_save_loc(void)
 void imx8mq_get_boot_source(enum bootsource *src, int *instance)
 {
 	unsigned long addr;
+	void __iomem *src_base = IOMEM(MX8MQ_SRC_BASE_ADDR);
+	uint32_t sbmr2 = readl(src_base + 0x70);
 
 	addr = (imx8mq_cpu_revision() == IMX_CHIP_REV_1_0) ?
 		IMX8M_BOOT_SW_INFO_POINTER_ADDR_A0 :
 		IMX8M_BOOT_SW_INFO_POINTER_ADDR_B0;
 
-	__imx7_get_boot_source(src, instance, addr);
+	__imx7_get_boot_source(src, instance, addr, sbmr2);
 }
 
 void imx8mq_boot_save_loc(void)
-- 
2.25.0


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  parent reply	other threads:[~2020-02-17 12:47 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-17 12:45 [PATCH 00/42] Add i.MX8M support Sascha Hauer
2020-02-17 12:45 ` [PATCH 01/42] ARM: i.MX8: Move iomux header to make space for i.MX8MM Sascha Hauer
2020-02-17 12:45 ` [PATCH 02/42] ARM: i.MX8M: Add base addresses common to i.MX8M Sascha Hauer
2020-02-17 12:45 ` [PATCH 03/42] ARM: i.MX8M: add and use imx8mq_setup_pad() Sascha Hauer
2020-02-17 12:45 ` [PATCH 04/42] ARM: i.MX: Drop iomux argument from mx7_setup_pad() Sascha Hauer
2020-02-17 12:45 ` [PATCH 05/42] ARM: i.MX8M: Add iomux header for i.MX8MM Sascha Hauer
2020-02-17 12:45 ` [PATCH 06/42] ARM: i.MX8M: Add imx8mm-regs.h Sascha Hauer
2020-02-17 12:45 ` [PATCH 07/42] ARM: i.MX8M: Add ARCH_IMX8M symbol Sascha Hauer
2020-02-17 12:45 ` [PATCH 08/42] ARM: i.MX: esdctl: rename functions to imx8m_* Sascha Hauer
2020-02-17 12:45 ` [PATCH 09/42] ARM: i.MX8M: Use imx8mq.c for other i.MX8M as well Sascha Hauer
2020-02-17 12:45 ` [PATCH 10/42] ARM: i.MX8M: rename imx8_* bootsource functions to imx8mq_* Sascha Hauer
2020-02-17 12:45 ` Sascha Hauer [this message]
2020-02-17 12:45 ` [PATCH 12/42] HAB: i.MX8M: rename imx8_* functions to imx8m_* Sascha Hauer
2020-02-17 12:45 ` [PATCH 13/42] ARM: i.MX8M: rename i.MX8M specific function Sascha Hauer
2020-02-17 12:45 ` [PATCH 14/42] ARM: i.MX8M: rename functions to be i.MX8M specific Sascha Hauer
2020-02-17 12:45 ` [PATCH 15/42] mci: imx-esdhc-pbl: Add instance 2 for i.MX8MM Sascha Hauer
2020-02-17 12:45 ` [PATCH 16/42] USB: gadget: fsl_udc: move register definitions to header file Sascha Hauer
2020-02-17 12:45 ` [PATCH 17/42] usb: gadget: fsl_udc: Add PBL image loading support Sascha Hauer
2020-02-17 12:45 ` [PATCH 18/42] usb: gadget: fsl_udc: Fix warnings on 64bit compilation Sascha Hauer
2020-02-17 12:46 ` [PATCH 19/42] usb: imx: Add i.MX8mm support Sascha Hauer
2020-02-17 12:46 ` [PATCH 20/42] serial: imx: Add imx8mm compatible Sascha Hauer
2020-02-17 12:46 ` [PATCH 21/42] mci: imx-esdhc: Add i.MX8mm support Sascha Hauer
2020-02-17 12:46 ` [PATCH 22/42] I2C: i.MX: Add early i2c support for i.MX8M Sascha Hauer
2020-02-17 12:46 ` [PATCH 23/42] clk: imx: Add pll14xx support Sascha Hauer
2020-02-17 12:46 ` [PATCH 24/42] clk: imx: Add imx8m_clk_composite_critical Sascha Hauer
2020-02-17 12:46 ` [PATCH 25/42] clk: imx: Add imx8mm clk driver Sascha Hauer
2020-02-17 12:46 ` [PATCH 26/42] ARM: i.MX: Add SoC namespace to imx7/8m CCM defines Sascha Hauer
2020-02-17 12:46 ` [PATCH 27/42] Add some CCM defines for i.MX8M Sascha Hauer
2020-02-17 12:46 ` [PATCH 28/42] ARM: i.MX8M: rename imx8-ccm-regs.h to imx8m-ccm-regs.h Sascha Hauer
2020-02-17 12:46 ` [PATCH 29/42] ARM: i.MX8M: Add some lowlevel clock functions Sascha Hauer
2020-02-17 12:46 ` [PATCH 30/42] ARM: i.MX7: Add and use function for early UART clock setup Sascha Hauer
2020-02-17 12:46 ` [PATCH 31/42] ARM: i.MX8M: " Sascha Hauer
2020-02-17 12:46 ` [PATCH 32/42] iomux: Add i.MX8MM support Sascha Hauer
2020-02-17 12:46 ` [PATCH 33/42] mfd: Add Rohm bd71837 header file Sascha Hauer
2020-02-17 12:46 ` [PATCH 34/42] scripts: imx-usb-loader: Add 2nd stage loading support Sascha Hauer
2020-02-17 12:46 ` [PATCH 35/42] scripts: imx-usb-loader: Add i.MX8MM support Sascha Hauer
2020-02-17 12:46 ` [PATCH 36/42] ARM: i.MX8MQ boards: Add missing includes Sascha Hauer
2020-02-17 12:46 ` [PATCH 37/42] ARM: i.MX8M: Add DDR controller support Sascha Hauer
2020-02-17 12:46 ` [PATCH 38/42] ARM: i.MX8M: Add TF-A loading support for i.MX8MM Sascha Hauer
2020-02-17 12:46 ` [PATCH 39/42] ARM: i.MX8M: Add i.MX8MM support Sascha Hauer
2020-02-17 12:46 ` [PATCH 40/42] scripts: imx-image: " Sascha Hauer
2020-02-17 12:46 ` [PATCH 41/42] ARM: i.MX: Add i.MX8MM EVK board support Sascha Hauer
2020-02-17 12:46 ` [PATCH 42/42] ARM: i.MX: update imx_v8_defconfig for i.MX8MM Sascha Hauer

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