From: Alexander Feilke <[email protected]> The default implementation reduces code duplication for empty functions.
Signed-off-by: Alexander Feilke <[email protected]> Signed-off-by: Max Merchel <[email protected]> --- board/tq/common/Kconfig | 3 +++ board/tq/common/Makefile | 1 + board/tq/common/tq_som.c | 31 +++++++++++++++++++++++++++++++ board/tq/common/tq_som.h | 34 ++++++++++++++++++++++++++++++++++ 4 files changed, 69 insertions(+) create mode 100644 board/tq/common/tq_som.c create mode 100644 board/tq/common/tq_som.h diff --git a/board/tq/common/Kconfig b/board/tq/common/Kconfig index a1896929ea3..2fe2ca30072 100644 --- a/board/tq/common/Kconfig +++ b/board/tq/common/Kconfig @@ -11,3 +11,6 @@ config TQ_COMMON_BB config TQ_COMMON_SDMMC bool + +config TQ_COMMON_SOM + bool diff --git a/board/tq/common/Makefile b/board/tq/common/Makefile index ac564a713fd..4af9207da4a 100644 --- a/board/tq/common/Makefile +++ b/board/tq/common/Makefile @@ -6,4 +6,5 @@ # obj-$(CONFIG_TQ_COMMON_BB) += tq_bb.o +obj-$(CONFIG_TQ_COMMON_SOM) += tq_som.o obj-$(CONFIG_TQ_COMMON_SDMMC) += tq_sdmmc.o diff --git a/board/tq/common/tq_som.c b/board/tq/common/tq_som.c new file mode 100644 index 00000000000..791f896fcaf --- /dev/null +++ b/board/tq/common/tq_som.c @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2025-2026 TQ-Systems GmbH <[email protected]>, + * D-82229 Seefeld, Germany. + * Author: Alexander Feilke, Max Merchel + */ + +#include <init.h> +#include <asm/io.h> +#include <linux/sizes.h> + +#include "tq_som.h" + +void __weak tq_som_ram_init(void) +{ + ; +} + +/* + * checks if the accessible range equals the requested RAM size. + * returns true if successful, false otherwise + */ +bool tq_som_ram_check_size(long ram_size) +{ + long size; + + size = get_ram_size((void *)PHYS_SDRAM, ram_size); + debug("SPL: requested RAM size %lu MiB. accessible %lu MiB\n", ram_size / (SZ_1M), size / (SZ_1M)); + + return (size == ram_size); +} diff --git a/board/tq/common/tq_som.h b/board/tq/common/tq_som.h new file mode 100644 index 00000000000..d7168eb7e46 --- /dev/null +++ b/board/tq/common/tq_som.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (c) 2025-2026 TQ-Systems GmbH <[email protected]>, + * D-82229 Seefeld, Germany. + * Author: Alexander Feilke, Max Merchel + */ + +#ifndef __TQ_SOM_H +#define __TQ_SOM_H + +#include <init.h> +#include <asm/io.h> + +void tq_som_ram_init(void); + +/* used as a wrapper to write to specific register addresses */ +static inline void tq_som_init_write_reg(u32 address, u32 value) +{ + writel_relaxed(value, address); +} + +/* + * checks if the accessible range equals the requested ram size. + * returns true if successful, false otherwise + */ +bool tq_som_ram_check_size(long ram_size); + +static inline void tq_som_check_bits_set(u32 address, u32 mask) +{ + while ((readl(address) & mask) != mask) + ; +} + +#endif /* __TQ_SOM_H */ -- 2.34.1
