diff options
| author | Bastien Curutchet <bastien.curutchet@bootlin.com> | 2024-12-04 10:43:16 +0100 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> | 2024-12-09 20:38:27 +0100 |
| commit | df8e78607d4795806b59564ba7a3e2e125d119fc (patch) | |
| tree | 253ec3f805266a326e93aa3e33866afbfbd1daf7 /include/linux | |
| parent | a6d60e3376065752137ec23d103f7d039c363e41 (diff) | |
memory: ti-aemif: Export aemif_*_cs_timings()
Export the aemif_set_cs_timing() and aemif_check_cs_timing() symbols so
they can be used by other drivers
Add a mutex to protect the CS configuration register from concurrent
accesses between the AEMIF and its 'children'.
Signed-off-by: Bastien Curutchet <bastien.curutchet@bootlin.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20241204094319.1050826-7-bastien.curutchet@bootlin.com
[krzysztof: wrap aemif_set_cs_timings() at 80-char]
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/memory/ti-aemif.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/linux/memory/ti-aemif.h b/include/linux/memory/ti-aemif.h new file mode 100644 index 000000000000..da94a9d985e7 --- /dev/null +++ b/include/linux/memory/ti-aemif.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __MEMORY_TI_AEMIF_H +#define __MEMORY_TI_AEMIF_H + +/** + * struct aemif_cs_timings: structure to hold CS timing configuration + * values are expressed in number of clock cycles - 1 + * @ta: minimum turn around time + * @rhold: read hold width + * @rstrobe: read strobe width + * @rsetup: read setup width + * @whold: write hold width + * @wstrobe: write strobe width + * @wsetup: write setup width + */ +struct aemif_cs_timings { + u32 ta; + u32 rhold; + u32 rstrobe; + u32 rsetup; + u32 whold; + u32 wstrobe; + u32 wsetup; +}; + +struct aemif_device; + +int aemif_set_cs_timings(struct aemif_device *aemif, u8 cs, struct aemif_cs_timings *timings); +int aemif_check_cs_timings(struct aemif_cs_timings *timings); + +#endif // __MEMORY_TI_AEMIF_H |