diff options
Diffstat (limited to 'drivers/pci/controller/plda/pcie-plda-host.c')
| -rw-r--r-- | drivers/pci/controller/plda/pcie-plda-host.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/pci/controller/plda/pcie-plda-host.c b/drivers/pci/controller/plda/pcie-plda-host.c index 8533dc618d45..4153214ca410 100644 --- a/drivers/pci/controller/plda/pcie-plda-host.c +++ b/drivers/pci/controller/plda/pcie-plda-host.c @@ -8,11 +8,14 @@ * Author: Daire McNamara <daire.mcnamara@microchip.com> */ +#include <linux/align.h> +#include <linux/bitfield.h> #include <linux/irqchip/chained_irq.h> #include <linux/irqdomain.h> #include <linux/msi.h> #include <linux/pci_regs.h> #include <linux/pci-ecam.h> +#include <linux/wordpart.h> #include "pcie-plda.h" @@ -502,8 +505,9 @@ void plda_pcie_setup_window(void __iomem *bridge_base_addr, u32 index, writel(val, bridge_base_addr + (index * ATR_ENTRY_SIZE) + ATR0_AXI4_SLV0_TRSL_PARAM); - val = lower_32_bits(axi_addr) | (atr_sz << ATR_SIZE_SHIFT) | - ATR_IMPL_ENABLE; + val = ALIGN_DOWN(lower_32_bits(axi_addr), SZ_4K); + val |= FIELD_PREP(ATR_SIZE_MASK, atr_sz); + val |= ATR_IMPL_ENABLE; writel(val, bridge_base_addr + (index * ATR_ENTRY_SIZE) + ATR0_AXI4_SLV0_SRCADDR_PARAM); @@ -518,13 +522,20 @@ void plda_pcie_setup_window(void __iomem *bridge_base_addr, u32 index, val = upper_32_bits(pci_addr); writel(val, bridge_base_addr + (index * ATR_ENTRY_SIZE) + ATR0_AXI4_SLV0_TRSL_ADDR_UDW); +} +EXPORT_SYMBOL_GPL(plda_pcie_setup_window); + +void plda_pcie_setup_inbound_address_translation(struct plda_pcie_rp *port) +{ + void __iomem *bridge_base_addr = port->bridge_addr; + u32 val; val = readl(bridge_base_addr + ATR0_PCIE_WIN0_SRCADDR_PARAM); val |= (ATR0_PCIE_ATR_SIZE << ATR0_PCIE_ATR_SIZE_SHIFT); writel(val, bridge_base_addr + ATR0_PCIE_WIN0_SRCADDR_PARAM); writel(0, bridge_base_addr + ATR0_PCIE_WIN0_SRC_ADDR); } -EXPORT_SYMBOL_GPL(plda_pcie_setup_window); +EXPORT_SYMBOL_GPL(plda_pcie_setup_inbound_address_translation); int plda_pcie_setup_iomems(struct pci_host_bridge *bridge, struct plda_pcie_rp *port) |