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2017-03-03pci/quirk: Populate device tree for AST2400 VGARussell Currey1-0/+7
Adding these properties enables the kernel to function in the same way that it would if it could no longer access BMC configuration registers through a backdoor, which may become the default in future. The comments describe how isolating the host from the BMC could be achieved in skiboot, assuming all kernels that the system boots support this. Isolating the BMC and the host from each other is important if they are owned by different parties; for example, a cloud provider renting machines "bare metal". Acked-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Russell Currey <ruscur@russell.cc> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-02-23astbmc/pnor: Use mbox-flash for flash accessesCyril Bur1-0/+1
If the BMC is MBOX protocol aware, request flash reads/writes over the MBOX regs. This inits the blocklevel for pnor access with mbox-flash. Signed-off-by: Cyril Bur <cyril.bur@au1.ibm.com> Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-02-23ast-bmc: Use the mbox driverCyril Bur1-0/+3
The mbox registers are accessed via superIO, these need to be initialised. The mbox device node won't be present in the device tree hostboot passes us, so fixup the device tree. Signed-off-by: Cyril Bur <cyril.bur@au1.ibm.com> Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2015-11-26libflash: enable 4b mode on BMC SPI flashJoel Stanley1-0/+1
We already support larger parts on the host flash, but the BMC has always had a 16MB part, so we did not need to enable the 4b addressing mode. This enables the 4b addressing mode when the flash is larger than 16MB. Signed-off-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Cédric Le Goater <clg@fr.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2015-03-26memboot: Add a memboot flash backendAlistair Popple1-0/+2
memboot uses bmc system memory instead of a real flash chip. This patch adds a flash backend for bmc system memory to allow use of the memboot tool (in external/memboot) to boot the system. Signed-off-by: Alistair Popple <alistair@popple.id.au> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2014-10-15libflash: Sync with pflash 0.8.3Benjamin Herrenschmidt1-0/+6
Fixes 64MB chip support, improve Macronix settings, add Micron chip support, etc... Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-10-05plat/palmetto: Fix SIO UART vs UART setup and iBT setupBenjamin Herrenschmidt1-2/+17
The AMI images use the virtual UART, not the SIO UART, so configuring the SIO the way we do is incorrect. Additionally, they don't configure the interrupts properly (bad polarity for VUART and bad number for iBT). This reworks the inits to fix that up: - All SIO interrupts are set to level low - Check if VUART is enabled. If yes, configure and use it (and disable SIO UART which hostboot might have left enabled). - Else, reconfigure VUART LPC address and IRQ properly - Configure iBT LPC address and IRQ properly Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-07-02Initial commit of Open Source releaseBenjamin Herrenschmidt1-0/+78
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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