From d72555af4e1ae7d5ab5b54045510bd637b8f1cfd Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Tue, 20 Dec 2022 12:22:00 +0200 Subject: [PATCH] mtd: rawnand: omap_gpmc: Add SPL NAND support Enables SPL NAND support for ARCH_K3 by enabling SPL_NAND_INIT and SPL_SYS_NAND_SELF_INIT. Legacy OMAP2plus platforms still rely on SPL_NAND_AM33XX_BCH instead. Signed-off-by: Roger Quadros Signed-off-by: Michael Trimarchi Signed-off-by: Dario Binacchi Link: https://lore.kernel.org/all/20221220102203.52398-6-rogerq@kernel.org --- drivers/mtd/nand/raw/Kconfig | 5 ++++ drivers/mtd/nand/raw/Makefile | 2 +- drivers/mtd/nand/raw/omap_gpmc.c | 40 ++++++++++++++++++++++++++++++++ 3 files changed, 46 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig index 87ed4a22d6..7f2f49c560 100644 --- a/drivers/mtd/nand/raw/Kconfig +++ b/drivers/mtd/nand/raw/Kconfig @@ -26,6 +26,9 @@ config TPL_SYS_NAND_SELF_INIT config TPL_NAND_INIT bool +config SPL_NAND_INIT + bool + config SYS_MAX_NAND_DEVICE int "Maximum number of NAND devices to support" default 1 @@ -254,6 +257,8 @@ config NAND_OMAP_GPMC bool "Support OMAP GPMC NAND controller" depends on ARCH_OMAP2PLUS || ARCH_KEYSTONE || ARCH_K3 select SYS_NAND_SELF_INIT if ARCH_K3 + select SPL_NAND_INIT if ARCH_K3 + select SPL_SYS_NAND_SELF_INIT if ARCH_K3 help Enables omap_gpmc.c driver for OMAPx and AMxxxx platforms. GPMC controller is used for parallel NAND flash devices, and can diff --git a/drivers/mtd/nand/raw/Makefile b/drivers/mtd/nand/raw/Makefile index a398aa9d88..6fe33d2485 100644 --- a/drivers/mtd/nand/raw/Makefile +++ b/drivers/mtd/nand/raw/Makefile @@ -18,7 +18,7 @@ obj-$(CONFIG_SPL_NAND_BASE) += nand_base.o nand_amd.o nand_hynix.o \ nand_macronix.o nand_micron.o \ nand_samsung.o nand_toshiba.o obj-$(CONFIG_SPL_NAND_IDENT) += nand_ids.o nand_timings.o -obj-$(CONFIG_TPL_NAND_INIT) += nand.o +obj-$(CONFIG_$(SPL_TPL_)NAND_INIT) += nand.o ifeq ($(CONFIG_SPL_ENV_SUPPORT),y) obj-$(CONFIG_ENV_IS_IN_NAND) += nand_util.o endif diff --git a/drivers/mtd/nand/raw/omap_gpmc.c b/drivers/mtd/nand/raw/omap_gpmc.c index fa60c371c2..4d5f2455df 100644 --- a/drivers/mtd/nand/raw/omap_gpmc.c +++ b/drivers/mtd/nand/raw/omap_gpmc.c @@ -1263,3 +1263,43 @@ int board_nand_init(struct nand_chip *nand) } #endif /* CONFIG_SYS_NAND_SELF_INIT */ + +#if defined(CONFIG_SPL_NAND_INIT) + +/* nand_init() is provided by nand.c */ + +/* Unselect after operation */ +void nand_deselect(void) +{ + struct mtd_info *mtd = nand_to_mtd(nand_chip); + + if (nand_chip->select_chip) + nand_chip->select_chip(mtd, -1); +} + +static int nand_is_bad_block(int block) +{ + struct mtd_info *mtd = nand_to_mtd(nand_chip); + + loff_t ofs = block * CONFIG_SYS_NAND_BLOCK_SIZE; + + return nand_chip->block_bad(mtd, ofs); +} + +static int nand_read_page(int block, int page, uchar *dst) +{ + int page_addr = block * CONFIG_SYS_NAND_PAGE_COUNT + page; + loff_t ofs = page_addr * CONFIG_SYS_NAND_PAGE_SIZE; + int ret; + size_t len = CONFIG_SYS_NAND_PAGE_SIZE; + struct mtd_info *mtd = nand_to_mtd(nand_chip); + + ret = nand_read(mtd, ofs, &len, dst); + if (ret) + printf("nand_read failed %d\n", ret); + + return ret; +} + +#include "nand_spl_loaders.c" +#endif /* CONFIG_SPL_NAND_INIT */ -- 2.39.5