From: Ricardo Salveti ricardo@foundries.io

Add a base implementation of mx7ulp SPL config header and soc, and changes in makefiles in order to allow building SPL on mx7ulp based devices.

Signed-off-by: Ricardo Salveti ricardo@foundries.io Co-developed-by: Oleksandr Suvorov oleksandr.suvorov@foundries.io Signed-off-by: Oleksandr Suvorov oleksandr.suvorov@foundries.io ---

arch/arm/Makefile | 2 +- arch/arm/mach-imx/Makefile | 2 +- arch/arm/mach-imx/mx7ulp/soc.c | 2 +- arch/arm/mach-imx/spl.c | 12 ++++++-- include/configs/imx7ulp_spl.h | 52 ++++++++++++++++++++++++++++++++++ 5 files changed, 64 insertions(+), 6 deletions(-) create mode 100644 include/configs/imx7ulp_spl.h

diff --git a/arch/arm/Makefile b/arch/arm/Makefile index c68e598a67..03582af414 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -107,7 +107,7 @@ libs-y += arch/arm/cpu/ libs-y += arch/arm/lib/

ifeq ($(CONFIG_SPL_BUILD),y) -ifneq (,$(CONFIG_MX23)$(CONFIG_MX28)$(CONFIG_MX35)$(filter $(SOC), mx25 mx5 mx6 mx7 mx35 imx8m imx8 imx8ulp imxrt)) +ifneq (,$(CONFIG_MX23)$(CONFIG_MX28)$(CONFIG_MX35)$(filter $(SOC), mx25 mx5 mx6 mx7 mx7ulp mx35 imx8m imx8 imx8ulp imxrt)) libs-y += arch/arm/mach-imx/ endif else diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile index 0ef269563d..2ecd1280d4 100644 --- a/arch/arm/mach-imx/Makefile +++ b/arch/arm/mach-imx/Makefile @@ -28,7 +28,7 @@ endif obj-$(CONFIG_GPT_TIMER) += timer.o obj-$(CONFIG_SYS_I2C_MXC) += i2c-mxv7.o endif -ifeq ($(SOC),$(filter $(SOC),mx7 mx6 mxs imx8m imx8 imxrt)) +ifeq ($(SOC),$(filter $(SOC),mx7 mx7ulp mx6 mxs imx8m imx8 imxrt)) obj-y += misc.o obj-$(CONFIG_CMD_PRIBLOB) += priblob.o obj-$(CONFIG_SPL_BUILD) += spl.o diff --git a/arch/arm/mach-imx/mx7ulp/soc.c b/arch/arm/mach-imx/mx7ulp/soc.c index 320f24dd29..6815d73ca6 100644 --- a/arch/arm/mach-imx/mx7ulp/soc.c +++ b/arch/arm/mach-imx/mx7ulp/soc.c @@ -196,7 +196,7 @@ void s_init(void) } #endif

-#ifndef CONFIG_ULP_WATCHDOG +#if !CONFIG_IS_ENABLED(ULP_WATCHDOG) || CONFIG_IS_ENABLED(SPL_BUILD) void reset_cpu(void) { setbits_le32(SIM0_RBASE, SIM_SOPT1_A7_SW_RESET); diff --git a/arch/arm/mach-imx/spl.c b/arch/arm/mach-imx/spl.c index 36033d611c..2c5ab67154 100644 --- a/arch/arm/mach-imx/spl.c +++ b/arch/arm/mach-imx/spl.c @@ -111,8 +111,12 @@ u32 spl_boot_device(void) return BOOT_DEVICE_NONE; }

-#elif defined(CONFIG_MX7) || defined(CONFIG_IMX8M) || defined(CONFIG_IMX8) -/* Translate iMX7/i.MX8M boot device to the SPL boot device enumeration */ +#elif defined(CONFIG_MX7) || defined(CONFIG_MX7ULP) || \ + defined(CONFIG_IMX8M) || defined(CONFIG_IMX8) +/* + * Translate iMX7/i.MX7ULP/i.MX8M/i.MX8 boot device to the SPL boot + * device enumeration + */ u32 spl_boot_device(void) { #if defined(CONFIG_MX7) @@ -124,7 +128,9 @@ u32 spl_boot_device(void) */ if (((bmode >> 24) & 0x03) == 0x01) /* Serial Downloader */ return BOOT_DEVICE_BOARD; +#endif

+#if defined(CONFIG_MX7) || defined(CONFIG_MX7ULP) /* * The above method does not detect that the boot ROM used * serial downloader in case the boot ROM decided to use the @@ -182,7 +188,7 @@ u32 spl_boot_device(void) return BOOT_DEVICE_NONE; } } -#endif /* CONFIG_MX7 || CONFIG_IMX8M || CONFIG_IMX8 */ +#endif /* CONFIG_MX7 || CONFIG_MX7ULP || CONFIG_IMX8M || CONFIG_IMX8 */

#ifdef CONFIG_SPL_USB_GADGET int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name) diff --git a/include/configs/imx7ulp_spl.h b/include/configs/imx7ulp_spl.h new file mode 100644 index 0000000000..14e5982d29 --- /dev/null +++ b/include/configs/imx7ulp_spl.h @@ -0,0 +1,52 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * SPL definitions for the i.MX7ULP SPL + * + * (C) Copyright 2019 Foundries.io + */ + +#ifndef __IMX7ULP_SPL_CONFIG_H +#define __IMX7ULP_SPL_CONFIG_H + +#if CONFIG_IS_ENABLED(SPL) +/* + * see figure 35-5 in i.MX 7ULP Reference manual: + * - IMX7ULP A7 OCRAM free area RAM is from 0x2F010000 to 0x2F03FF00. + * - Set the stack at the end of the free area section, at 0x2003FEB8. + * - The BOOT ROM loads what they consider the firmware image + * which consists of a 4K header in front of us that contains the IVT, DCD + * and some padding thus 'our' max size is really 0x2F03FF00 - 0x2F011000. + * 187KB is more then enough for the SPL. + */ +#define CONFIG_SPL_MAX_SIZE 0x2EC00 +#define CONFIG_SPL_STACK 0x2F03FEB8 +/* + * Pad SPL to 191KB (4KB header + 187KB max size). This allows to write the + * SPL/U-Boot combination generated with u-boot-with-spl.imx directly to a + * boot media (given that boot media specific offset is configured properly). + */ +#define CONFIG_SPL_PAD_TO 0x2FC00 + +/* MMC support */ +#if CONFIG_IS_ENABLED(SPL_MMC_SUPPORT) +#define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION 1 +#define CONFIG_SYS_MONITOR_LEN 409600 /* 400 KB */ +#endif + +/* Define the payload for FAT/EXT support */ +#if CONFIG_IS_ENABLED(SPL_FS_FAT) || CONFIG_IS_ENABLED(SPL_FS_EXT4) +# if CONFIG_IS_ENABLED(OF_CONTROL) +# define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot-dtb.img" +# else +# define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img" +# endif +#endif + +#define CONFIG_SPL_BSS_START_ADDR 0x68200000 +#define CONFIG_SPL_BSS_MAX_SIZE 0x100000 /* 1 MB */ +#define CONFIG_SYS_SPL_MALLOC_START 0x68300000 +#define CONFIG_SYS_SPL_MALLOC_SIZE 0x100000 /* 1 MB */ + +#endif /* CONFIG_SPL */ + +#endif /* __IMX7ULP_SPL_CONFIG_H */