linux-stable.git/drivers/soc/aspeed, branch v5.12.2

soc: aspeed: socinfo: Add new systems

2021-02-10T11:55:45+00:00

Aspeed's u-boot sdk has been updated with the SoC IDs for the AST2605
variant, as well as A2 and A3 variants of the 2600 family.

>From u-boot's arch/arm/mach-aspeed/ast2600/scu_info.c:

    SOC_ID("AST2600-A0", 0x0500030305000303),
    SOC_ID("AST2600-A1", 0x0501030305010303),
    SOC_ID("AST2620-A1", 0x0501020305010203),
    SOC_ID("AST2600-A2", 0x0502030305010303),
    SOC_ID("AST2620-A2", 0x0502020305010203),
    SOC_ID("AST2605-A2", 0x0502010305010103),
    SOC_ID("AST2600-A3", 0x0503030305030303),
    SOC_ID("AST2620-A3", 0x0503020305030203),
    SOC_ID("AST2605-A3", 0x0503010305030103),

Fixes: e0218dca5787 ("soc: aspeed: Add soc info driver")
Link: https://lore.kernel.org/r/20210210114651.334324-1-joel@jms.id.au
Signed-off-by: Joel Stanley

soc: aspeed: snoop: Add clock control logic

2021-02-10T09:59:31+00:00

If LPC SNOOP driver is registered ahead of lpc-ctrl module, LPC
SNOOP block will be enabled without heart beating of LCLK until
lpc-ctrl enables the LCLK. This issue causes improper handling on
host interrupts when the host sends interrupt in that time frame.
Then kernel eventually forcibly disables the interrupt with
dumping stack and printing a 'nobody cared this irq' message out.

To prevent this issue, all LPC sub-nodes should enable LCLK
individually so this patch adds clock control logic into the LPC
SNOOP driver.

Fixes: 3772e5da4454 ("drivers/misc: Aspeed LPC snoop output using misc chardev")
Signed-off-by: Jae Hyun Yoo 
Signed-off-by: Vernon Mauery 
Signed-off-by: John Wang 
Reviewed-by: Joel Stanley 
Link: https://lore.kernel.org/r/20201208091748.1920-1-wangzhiqiang.bj@bytedance.com
Signed-off-by: Joel Stanley

soc: aspeed: Enable drivers with ARCH_ASPEED

2020-11-19T12:31:36+00:00

Default the drivers to on as most configurations will use them.

Signed-off-by: Joel Stanley

soc: aspeed: Fix a reference leak in aspeed_socinfo_init()

2020-11-19T12:31:15+00:00

This needs to call of_node_put(np) before returning if of_iomap() fails.

Fixes: e0218dca5787 ("soc: aspeed: Add soc info driver")
Signed-off-by: Dan Carpenter 
Reviewed-by: Andrew Jeffery 
Link: https://lore.kernel.org/r/20201113100850.GA168908@mwanda
Signed-off-by: Joel Stanley

soc: aspeed: remove unneeded semicolon

2020-11-19T12:31:14+00:00

A semicolon is not needed after a switch statement.

Signed-off-by: Tom Rix 
Link: https://lore.kernel.org/r/20201101150622.2288203-1-trix@redhat.com
Signed-off-by: Joel Stanley

soc: aspeed-lpc-ctrl: Fix driver name

2020-09-25T05:24:42+00:00

Clarify the string now that it supports the AST2600 too.

Signed-off-by: Joel Stanley

soc: aspeed-lpc-ctrl: Fix whitespace

2020-09-25T05:24:42+00:00

Some misaligned indentation I noticed when applying another patch.

Signed-off-by: Joel Stanley

soc: aspeed-lpc-ctrl: LPC to AHB mapping on ast2600

2020-09-25T05:24:42+00:00

The ast2600 disables the mapping of AHB memory regions by default,
only allowing the LPC window to point to SPI NOR. In order to point the
window to any AHB address, an ast2600 specific bit must be toggled.

Reviewed-by: Andrew Jeffery 
Link: https://lore.kernel.org/r/20200312121413.294384-1-joel@jms.id.au
Signed-off-by: Joel Stanley

soc: aspeed-lpc-ctrl: Fail probe of lpc-ctrl if reserved memory is not aligned

2020-09-25T04:38:14+00:00

Alignment is a hardware constraint of the LPC2AHB bridge, and misaligned
reserved memory will present as corrupted data.

Signed-off-by: Andrew Jeffery 
Reviewed-by: Joel Stanley 
Link: https://lore.kernel.org/r/20191016233950.10100-1-andrew@aj.id.au
Signed-off-by: Joel Stanley

soc: aspeed: lpc: Add AST2600 compatible strings

2020-09-25T04:32:43+00:00

The AST2600 has the same lpc-ctrl and lpc-snoop devices as the
AST2500.

Signed-off-by: Brad Bishop 
Acked-by: Andrew Jeffery 
Link: https://lore.kernel.org/r/20190925125610.12096-4-bradleyb@fuzziesquirrel.com
Signed-off-by: Joel Stanley