diff options
| author | Xiubo Li <Li.Xiubo@freescale.com> | 2014-11-21 17:40:59 +0800 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2014-12-11 09:42:22 -0800 |
| commit | 660673af4fd10c544ceeedeb524ba92c27dbc586 (patch) | |
| tree | 2979c885f915d9aa5561a7977ac2c1b3543aa0ff /board/freescale/common | |
| parent | e87f3b308c454f6e78b02da857936c7d012c385b (diff) | |
ARM: ls102xa: Setting device's stream id for SMMUs.
LS1 has 4 SMMUs for address translation of the masters. All the
SMMUs' stream IDs are 8-bit. The address translation depends on the
stream ID of the incoming transaction.
Each master has unique stream ID assigned to it and is configurable
through SCFG registers. The stream ID for the masters is identical
and share the same register field of STREAM ID registers.
Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'board/freescale/common')
| -rw-r--r-- | board/freescale/common/Makefile | 2 | ||||
| -rw-r--r-- | board/freescale/common/ls102xa_stream_id.c | 18 |
2 files changed, 20 insertions, 0 deletions
diff --git a/board/freescale/common/Makefile b/board/freescale/common/Makefile index 148fc41102..14af660087 100644 --- a/board/freescale/common/Makefile +++ b/board/freescale/common/Makefile @@ -62,6 +62,8 @@ obj-$(CONFIG_IDT8T49N222A) += idt8t49n222a_serdes_clk.o obj-$(CONFIG_ZM7300) += zm7300.o obj-$(CONFIG_POWER_PFUZE100) += pfuze.o +obj-$(CONFIG_LS102XA_STREAM_ID) += ls102xa_stream_id.o + # deal with common files for P-series corenet based devices obj-$(CONFIG_P2041RDB) += p_corenet/ obj-$(CONFIG_P3041DS) += p_corenet/ diff --git a/board/freescale/common/ls102xa_stream_id.c b/board/freescale/common/ls102xa_stream_id.c new file mode 100644 index 0000000000..6154c9c458 --- /dev/null +++ b/board/freescale/common/ls102xa_stream_id.c @@ -0,0 +1,18 @@ +/* + * Copyright 2014 Freescale Semiconductor + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/ls102xa_stream_id.h> + +void ls102xa_config_smmu_stream_id(struct smmu_stream_id *id, uint32_t num) +{ + uint32_t *scfg = (uint32_t *)CONFIG_SYS_FSL_SCFG_ADDR; + int i; + + for (i = 0; i < num; i++) + out_be32(scfg + id[i].offset, id[i].stream_id); +} |