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mfd: lpc_ich: Do not touch SPI-NOR write protection bit on Apollo Lake

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Just to be on the safe side, don't touch the bit. If write access to the
flash chip is needed, the BIOS needs to enable it explicitly.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Mika Westerberg 2018-01-04 12:20:18 +03:00 committed by Lee Jones
parent 0c384fc862
commit 0f89ffefa4
1 changed files with 0 additions and 5 deletions
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5
drivers/mfd/lpc_ich.c
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@ -1143,11 +1143,6 @@ static int lpc_ich_init_spi(struct pci_dev *dev)
res->end = res->start + SPIBASE_APL_SZ - 1; res->end = res->start + SPIBASE_APL_SZ - 1;
pci_bus_read_config_dword(bus, spi, BCR, &bcr); pci_bus_read_config_dword(bus, spi, BCR, &bcr);
if (!(bcr & BCR_WPD)) {
bcr |= BCR_WPD;
pci_bus_write_config_dword(bus, spi, BCR, bcr);
pci_bus_read_config_dword(bus, spi, BCR, &bcr);
}
info->writeable = !!(bcr & BCR_WPD); info->writeable = !!(bcr & BCR_WPD);
} }