dt-bindings: clock: ast2600: Add FSI clock

Add a definition for the FSI clock.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240215220759.976998-2-eajames@linux.ibm.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

dt-bindings: clock: ast2600: Add I3C and MAC reset definitions

Add reset definitions of AST2600 I3C and MAC controllers. In the case of
the I3C reset, since there is no reset-line hardware available for
`ASPEED_RESET_I3C_DMA`, a new macro `ASPEED_RESET_I3C` with the same ID
is introduced to provide a more accurate representation of the hardware.
The old macro `ASPEED_RESET_I3C_DMA` is kept to provide backward
compatibility.

Signed-off-by: Dylan Hung <dylan_hung@aspeedtech.com>
Link: https://lore.kernel.org/r/20230718062616.2822339-1-dylan_hung@aspeedtech.com
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

dt-bindings: clock: ast2600: Expand comment on reset definitions

The current "not part of a gate" is a little ambiguous. Expand this a
little to clarify the reference to the paired clock + reset control.

Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Link: https://lore.kernel.org/r/20230302005834.13171-7-jk@codeconstruct.com.au
Reviewed-by: Joel Stanley <joel@jms.id.au>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Tested-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

dt-bindings: clock: ast2600: remove IC36 & I3C7 clock definitions

The current ast2600 clock definitions include entries for i3c6 and i3c7
devices, which don't exist: there are no clock control lines documented
for these, and only i3c devices 0 through 5 are present.

So, remove the definitions for I3C6 and I3C7. Although this is a
potential ABI-breaking change, there are no in-tree users of these, and
any references would be broken anyway, as the hardware doesn't exist.

This is a partial cherry-pick and rework of ed44b8cdfdb and 1a35eb926d7
from Aspeed's own tree, originally by Dylan Hung
<dylan_hung@aspeedtech.com>.

Reviewed-by: Joel Stanley <joel@jms.id.au>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Link: https://lore.kernel.org/r/20230302005834.13171-5-jk@codeconstruct.com.au
Tested-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

dt-bindings: clock: ast2600: Add top-level I3C clock

The ast2600 hardware has a top-level clock for all i3c controller
peripherals (then gated to each individual controller), so add a
top-level i3c clock line to control this.

This is a partial cherry-pick and rework of ed44b8cdfdb and 1a35eb926d7
from Aspeed's own tree, originally by Dylan Hung
<dylan_hung@aspeedtech.com>.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Link: https://lore.kernel.org/r/20230302005834.13171-3-jk@codeconstruct.com.au
Tested-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

dt-bindings: clock: Add AST2500/AST2600 HACE reset definition

Add HACE reset bit definition for AST2500/AST2600.

Signed-off-by: Neal Liu <neal_liu@aspeedtech.com>
Signed-off-by: Johnny Huang <johnny_huang@aspeedtech.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

dt-bindings: clock: Add AST2600 RMII RCLK gate definitions

The AST2600 has an explicit gate for the RMII RCLK for each of the four
MACs.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Joel Stanley <joel@jms.id.au>

clk: Add support for AST2600 SoC

The ast2600 is a new BMC SoC from ASPEED. It contains many more clocks
than the previous iterations, so support is broken out into it's own
driver.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Link: https://lkml.kernel.org/r/20190825141848.17346-3-joel@jms.id.au
[sboyd@kernel.org: Mark arrays const]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>