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May 2024

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[PATCH 0/2] Optimize udelay for aarch64 boards
by Peter Hoyes 01 May '24

01 May '24

Arm boards currently use the default implementation of __udelay which consists of a spin-loop. AArch64 however provides an architectural timer with an event stream which can be enabled and waited upon with a few lines of assembly. This is more efficient and also avoids an issue on Arm FVPs where polling the counter frequently takes much longer than real-time. Therefore, overrride __udelay for all armv8 boards to use the event stream. Macros for the relevant instructions already existed for mach-exynos, so pull these up to a common header file. I have tested this patch chain on qemu-system-aarch64 (virt,secure=on), FVP_Base_RevC and a Raspberry Pi 4. Peter Hoyes (2): arm: Move sev() and wfe() definitions to common Arm header file armv8: generic_timer: Use event stream for udelay arch/arm/cpu/armv8/Kconfig | 8 +++++++ arch/arm/cpu/armv8/generic_timer.c | 27 ++++++++++++++++++++++ arch/arm/include/asm/system.h | 15 ++++++++++-- arch/arm/mach-exynos/include/mach/system.h | 19 --------------- 4 files changed, 48 insertions(+), 21 deletions(-) -- 2.34.1

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[PATCH] mtd/spinand: gigadevice: sync supported chips with linux 6.9
by Chuanhong Guo 01 May '24

01 May '24

Adding support for: GD5F1GQ4RExxG GD5F2GQ4UExxG GD5F2GQ4RExxG GD5F1GQ5RExxG GD5F2GQ5UExxG GD5F2GQ5RExxG GD5F4GQ6UExxG GD5F4GQ6RExxG GD5F1GM7UExxG GD5F1GM7RExxG GD5F2GM7UExxG GD5F2GM7RExxG GD5F4GM8UExxG GD5F4GM8RExxG GD5F2GQ5xExxH GD5F1GQ5RExxH GD5F1GQ4RExxH Signed-off-by: Chuanhong Guo <gch981213(a)gmail.com> --- drivers/mtd/nand/spi/gigadevice.c | 188 +++++++++++++++++++++++++++++- 1 file changed, 187 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/spi/gigadevice.c b/drivers/mtd/nand/spi/gigadevice.c index f2ecf47f8d..fe8c76acac 100644 --- a/drivers/mtd/nand/spi/gigadevice.c +++ b/drivers/mtd/nand/spi/gigadevice.c @@ -43,6 +43,22 @@ static SPINAND_OP_VARIANTS(read_cache_variants_f, SPINAND_PAGE_READ_FROM_CACHE_OP_3A(true, 0, 1, NULL, 0), SPINAND_PAGE_READ_FROM_CACHE_OP_3A(false, 0, 0, NULL, 0)); +static SPINAND_OP_VARIANTS(read_cache_variants_1gq5, + SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0)); + +static SPINAND_OP_VARIANTS(read_cache_variants_2gq5, + SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 4, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 2, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0)); + static SPINAND_OP_VARIANTS(write_cache_variants, SPINAND_PROG_LOAD_X4(true, 0, NULL, 0), SPINAND_PROG_LOAD(true, 0, NULL, 0)); @@ -329,6 +345,36 @@ static const struct spinand_info gigadevice_spinand_table[] = { SPINAND_HAS_QE_BIT, SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, gd5fxgq4uexxg_ecc_get_status)), + SPINAND_INFO("GD5F1GQ4RExxG", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0xc1), + NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, + gd5fxgq4uexxg_ecc_get_status)), + SPINAND_INFO("GD5F2GQ4UExxG", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0xd2), + NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, + gd5fxgq4uexxg_ecc_get_status)), + SPINAND_INFO("GD5F2GQ4RExxG", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0xc2), + NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, + gd5fxgq4uexxg_ecc_get_status)), SPINAND_INFO("GD5F1GQ4UFxxG", SPINAND_ID(SPINAND_READID_METHOD_OPCODE, 0xb1, 0x48), NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1), @@ -343,12 +389,152 @@ static const struct spinand_info gigadevice_spinand_table[] = { SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x51), NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1), NAND_ECCREQ(4, 512), - SPINAND_INFO_OP_VARIANTS(&read_cache_variants, + SPINAND_INFO_OP_VARIANTS(&read_cache_variants_1gq5, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, + gd5fxgq5xexxg_ecc_get_status)), + SPINAND_INFO("GD5F1GQ5RExxG", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x41), + NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1), + NAND_ECCREQ(4, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants_1gq5, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, + gd5fxgq5xexxg_ecc_get_status)), + SPINAND_INFO("GD5F2GQ5UExxG", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x52), + NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1), + NAND_ECCREQ(4, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants_2gq5, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, + gd5fxgq5xexxg_ecc_get_status)), + SPINAND_INFO("GD5F2GQ5RExxG", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x42), + NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1), + NAND_ECCREQ(4, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants_2gq5, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, + gd5fxgq5xexxg_ecc_get_status)), + SPINAND_INFO("GD5F4GQ6UExxG", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x55), + NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 2, 1), + NAND_ECCREQ(4, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants_2gq5, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, + gd5fxgq5xexxg_ecc_get_status)), + SPINAND_INFO("GD5F4GQ6RExxG", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x45), + NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 2, 1), + NAND_ECCREQ(4, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants_2gq5, &write_cache_variants, &update_cache_variants), SPINAND_HAS_QE_BIT, SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, gd5fxgq5xexxg_ecc_get_status)), + SPINAND_INFO("GD5F1GM7UExxG", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x91), + NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants_1gq5, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, + gd5fxgq4uexxg_ecc_get_status)), + SPINAND_INFO("GD5F1GM7RExxG", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x81), + NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants_1gq5, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, + gd5fxgq4uexxg_ecc_get_status)), + SPINAND_INFO("GD5F2GM7UExxG", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x92), + NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants_1gq5, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, + gd5fxgq4uexxg_ecc_get_status)), + SPINAND_INFO("GD5F2GM7RExxG", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x82), + NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants_1gq5, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, + gd5fxgq4uexxg_ecc_get_status)), + SPINAND_INFO("GD5F4GM8UExxG", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x95), + NAND_MEMORG(1, 2048, 128, 64, 4096, 80, 1, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants_1gq5, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, + gd5fxgq4uexxg_ecc_get_status)), + SPINAND_INFO("GD5F4GM8RExxG", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x85), + NAND_MEMORG(1, 2048, 128, 64, 4096, 80, 1, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants_1gq5, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, + gd5fxgq4uexxg_ecc_get_status)), + SPINAND_INFO("GD5F2GQ5xExxH", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x22), + NAND_MEMORG(1, 2048, 64, 64, 2048, 40, 1, 1, 1), + NAND_ECCREQ(4, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants_2gq5, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, + gd5fxgq4uexxg_ecc_get_status)), + SPINAND_INFO("GD5F1GQ5RExxH", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x21), + NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1), + NAND_ECCREQ(4, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants_1gq5, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, + gd5fxgq4uexxg_ecc_get_status)), + SPINAND_INFO("GD5F1GQ4RExxH", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xc9), + NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1), + NAND_ECCREQ(4, 512), + SPINAND_INFO_OP_VARIANTS(&read_cache_variants_1gq5, + &write_cache_variants, + &update_cache_variants), + SPINAND_HAS_QE_BIT, + SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout, + gd5fxgq4uexxg_ecc_get_status)), }; static const struct spinand_manufacturer_ops gigadevice_spinand_manuf_ops = { -- 2.44.0

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