Subrata Banik has submitted this change. ( https://review.coreboot.org/c/coreboot/+/44205 )
Change subject: soc/intel/{cnl,icl,jsl,tgl}: Use Bus Master for setting up PWRMBASE ......................................................................
soc/intel/{cnl,icl,jsl,tgl}: Use Bus Master for setting up PWRMBASE
In 'bootblock/pch.c', clear PCI_COMMAND_MASTER (BIT 2) prior to programming PWRMBASE and enable BIT 2 after programming PWRMBASE along with PCI_COMMAND_MEMORY (BIT 1).
Also perform below operations 1. Use pci_and_config16 instead of pci read and write 2. Use setbits32 instead of mmio read and write
Change-Id: I7a148c718d7d2b618ad6e33d6cec11bd0bce0937 Signed-off-by: Subrata Banik subrata.banik@intel.com Reviewed-on: https://review.coreboot.org/c/coreboot/+/44205 Tested-by: build bot (Jenkins) no-reply@coreboot.org Reviewed-by: Furquan Shaikh furquan@google.com Reviewed-by: Tim Wawrzynczak twawrzynczak@chromium.org --- M src/soc/intel/cannonlake/bootblock/pch.c M src/soc/intel/icelake/bootblock/pch.c M src/soc/intel/jasperlake/bootblock/pch.c M src/soc/intel/tigerlake/bootblock/pch.c 4 files changed, 16 insertions(+), 40 deletions(-)
Approvals: build bot (Jenkins): Verified Furquan Shaikh: Looks good to me, approved Tim Wawrzynczak: Looks good to me, approved
diff --git a/src/soc/intel/cannonlake/bootblock/pch.c b/src/soc/intel/cannonlake/bootblock/pch.c index ae52f45..e1f0548 100644 --- a/src/soc/intel/cannonlake/bootblock/pch.c +++ b/src/soc/intel/cannonlake/bootblock/pch.c @@ -59,26 +59,20 @@
static void soc_config_pwrmbase(void) { - uint32_t reg32; - uint16_t reg16; - /* * Assign Resources to PWRMBASE - * Clear BIT 1-2 Command Register + * Clear BIT 1-2 Command Register */ - reg16 = pci_read_config16(PCH_DEV_PMC, PCI_COMMAND); - reg16 &= ~(PCI_COMMAND_MEMORY); - pci_write_config16(PCH_DEV_PMC, PCI_COMMAND, reg16); + pci_and_config16(PCH_DEV_PMC, PCI_COMMAND, ~(PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER));
/* Program PWRM Base */ pci_write_config32(PCH_DEV_PMC, PWRMBASE, PCH_PWRM_BASE_ADDRESS);
/* Enable Bus Master and MMIO Space */ - pci_or_config16(PCH_DEV_PMC, PCI_COMMAND, PCI_COMMAND_MEMORY); + pci_or_config16(PCH_DEV_PMC, PCI_COMMAND, (PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER));
/* Enable PWRM in PMC */ - reg32 = read32((void *)(PCH_PWRM_BASE_ADDRESS + ACTL)); - write32((void *)(PCH_PWRM_BASE_ADDRESS + ACTL), reg32 | PWRM_EN); + setbits32((void *) PCH_PWRM_BASE_ADDRESS + ACTL, PWRM_EN); }
void bootblock_pch_early_init(void) diff --git a/src/soc/intel/icelake/bootblock/pch.c b/src/soc/intel/icelake/bootblock/pch.c index 6ebf910..f36bd31 100644 --- a/src/soc/intel/icelake/bootblock/pch.c +++ b/src/soc/intel/icelake/bootblock/pch.c @@ -40,26 +40,20 @@
static void soc_config_pwrmbase(void) { - uint32_t reg32; - uint16_t reg16; - /* * Assign Resources to PWRMBASE - * Clear BIT 1-2 Command Register + * Clear BIT 1-2 Command Register */ - reg16 = pci_read_config16(PCH_DEV_PMC, PCI_COMMAND); - reg16 &= ~(PCI_COMMAND_MEMORY); - pci_write_config16(PCH_DEV_PMC, PCI_COMMAND, reg16); + pci_and_config16(PCH_DEV_PMC, PCI_COMMAND, ~(PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER));
/* Program PWRM Base */ pci_write_config32(PCH_DEV_PMC, PWRMBASE, PCH_PWRM_BASE_ADDRESS);
/* Enable Bus Master and MMIO Space */ - pci_or_config16(PCH_DEV_PMC, PCI_COMMAND, PCI_COMMAND_MEMORY); + pci_or_config16(PCH_DEV_PMC, PCI_COMMAND, (PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER));
/* Enable PWRM in PMC */ - reg32 = read32((void *)(PCH_PWRM_BASE_ADDRESS + ACTL)); - write32((void *)(PCH_PWRM_BASE_ADDRESS + ACTL), reg32 | PWRM_EN); + setbits32((void *) PCH_PWRM_BASE_ADDRESS + ACTL, PWRM_EN); }
void bootblock_pch_early_init(void) diff --git a/src/soc/intel/jasperlake/bootblock/pch.c b/src/soc/intel/jasperlake/bootblock/pch.c index 1260bc8..f59d9c9 100644 --- a/src/soc/intel/jasperlake/bootblock/pch.c +++ b/src/soc/intel/jasperlake/bootblock/pch.c @@ -44,26 +44,20 @@
static void soc_config_pwrmbase(void) { - uint32_t reg32; - uint16_t reg16; - /* * Assign Resources to PWRMBASE - * Clear BIT 1-2 Command Register + * Clear BIT 1-2 Command Register */ - reg16 = pci_read_config16(PCH_DEV_PMC, PCI_COMMAND); - reg16 &= ~(PCI_COMMAND_MEMORY); - pci_write_config16(PCH_DEV_PMC, PCI_COMMAND, reg16); + pci_and_config16(PCH_DEV_PMC, PCI_COMMAND, ~(PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER));
/* Program PWRM Base */ pci_write_config32(PCH_DEV_PMC, PWRMBASE, PCH_PWRM_BASE_ADDRESS);
/* Enable Bus Master and MMIO Space */ - pci_or_config16(PCH_DEV_PMC, PCI_COMMAND, PCI_COMMAND_MEMORY); + pci_or_config16(PCH_DEV_PMC, PCI_COMMAND, (PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER));
/* Enable PWRM in PMC */ - reg32 = read32((void *)(PCH_PWRM_BASE_ADDRESS + ACTL)); - write32((void *)(PCH_PWRM_BASE_ADDRESS + ACTL), reg32 | PWRM_EN); + setbits32((void *) PCH_PWRM_BASE_ADDRESS + ACTL, PWRM_EN); }
void bootblock_pch_early_init(void) diff --git a/src/soc/intel/tigerlake/bootblock/pch.c b/src/soc/intel/tigerlake/bootblock/pch.c index 9fc5ce1..63beeaa 100644 --- a/src/soc/intel/tigerlake/bootblock/pch.c +++ b/src/soc/intel/tigerlake/bootblock/pch.c @@ -49,26 +49,20 @@
static void soc_config_pwrmbase(void) { - uint32_t reg32; - uint16_t reg16; - /* * Assign Resources to PWRMBASE - * Clear BIT 1-2 Command Register + * Clear BIT 1-2 Command Register */ - reg16 = pci_read_config16(PCH_DEV_PMC, PCI_COMMAND); - reg16 &= ~(PCI_COMMAND_MEMORY); - pci_write_config16(PCH_DEV_PMC, PCI_COMMAND, reg16); + pci_and_config16(PCH_DEV_PMC, PCI_COMMAND, ~(PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER));
/* Program PWRM Base */ pci_write_config32(PCH_DEV_PMC, PWRMBASE, PCH_PWRM_BASE_ADDRESS);
/* Enable Bus Master and MMIO Space */ - pci_or_config16(PCH_DEV_PMC, PCI_COMMAND, PCI_COMMAND_MEMORY); + pci_or_config16(PCH_DEV_PMC, PCI_COMMAND, (PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER));
/* Enable PWRM in PMC */ - reg32 = read32((void *)(PCH_PWRM_BASE_ADDRESS + ACTL)); - write32((void *)(PCH_PWRM_BASE_ADDRESS + ACTL), reg32 | PWRM_EN); + setbits32((void *) PCH_PWRM_BASE_ADDRESS + ACTL, PWRM_EN); }
void bootblock_pch_early_init(void)