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| author | Andrew Jeffery <andrew@aj.id.au> | 2018-07-17 11:32:54 +0930 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.ibm.com> | 2018-07-17 01:13:16 -0500 |
| commit | 1d8793c64b596cfdcc3cf6035a3b4cbe3c341ae9 (patch) | |
| tree | 79e5822309463faa9d7763799fe2eb1875a05988 /platforms | |
| parent | ebc8524a3a457f73083d984296bfd797940a711c (diff) | |
| download | skiboot-1d8793c64b596cfdcc3cf6035a3b4cbe3c341ae9.zip skiboot-1d8793c64b596cfdcc3cf6035a3b4cbe3c341ae9.tar.gz skiboot-1d8793c64b596cfdcc3cf6035a3b4cbe3c341ae9.tar.bz2 | |
lpc: Silence LPC SYNC no-response error when necessary
Add the ability to silence particular errors from the LPC bus when they
can be expected, particularly:
LPC[000]: Got SYNC no-response error. Error address reg: 0xd001002f
This is necessary on platform exit on some astbmc machines to avoid
unnecessary noise in the msglog.
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
Diffstat (limited to 'platforms')
| -rw-r--r-- | platforms/astbmc/common.c | 28 |
1 files changed, 1 insertions, 27 deletions
diff --git a/platforms/astbmc/common.c b/platforms/astbmc/common.c index 4b5d9a6..2c32db7 100644 --- a/platforms/astbmc/common.c +++ b/platforms/astbmc/common.c @@ -430,33 +430,7 @@ void astbmc_early_init(void) static bool astbmc_isolate_via_io(void) { - uint32_t hw_strapping; - uint32_t silicon_rev; - uint8_t family; - - silicon_rev = ast_ahb_readl(SCU_REVISION_ID); - family = SCU_REVISION_SOC_FAMILY(silicon_rev); - - if (family == SCU_REVISION_SOC_FAMILY_2400) { - /* Strapping is read-modify-write on SCU70 */ - hw_strapping = SCU_STRAP_SIO_DECODE_DISABLE; - hw_strapping |= ast_ahb_readl(SCU_HW_STRAPPING); - } else if (family == SCU_REVISION_SOC_FAMILY_2500) { - /* - * Strapping is W1S on SCU70, W1C on SCU7C. We're setting a bit - * so read-modify-write *should* work, but in reality it breaks - * the AXI/AHB divider, so don't do that. - */ - hw_strapping = SCU_STRAP_SIO_DECODE_DISABLE; - } else { - prerror("PLAT: Unrecognised BMC silicon revision 0x%x, isolation failed\n", - silicon_rev); - return false; - } - - ast_ahb_writel(hw_strapping, SCU_HW_STRAPPING); - - return true; + return ast_sio_disable(); } static bool astbmc_isolate_via_ipmi(void) |