iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

PCI: rockchip: Drop storing driver private outbound resource data

Browse Source 
The Rockchip host bridge driver doesn't need to store outboard resources
in its private struct as they are already stored in struct
pci_host_bridge.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Shawn Lin <shawn.lin@rock-chips.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Andrew Murray <andrew.murray@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: linux-rockchip@lists.infradead.org
This commit is contained in:
Rob Herring 2019-10-28 11:32:42 -05:00 committed by Lorenzo Pieralisi
parent 5c1306a0fd
commit 62240a8800
2 changed files with 23 additions and 36 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
drivers/pci/controller/pcie-rockchip-host.c
View File

@ -806,19 +806,28 @@ static int rockchip_pcie_prog_ib_atu(struct rockchip_pcie *rockchip,
static int rockchip_pcie_cfg_atu(struct rockchip_pcie *rockchip)
{
struct device *dev = rockchip->dev;
struct pci_host_bridge *bridge = pci_host_bridge_from_priv(rockchip);
struct resource_entry *entry;
u64 pci_addr, size;
int offset;
int err;
int reg_no;
rockchip_pcie_cfg_configuration_accesses(rockchip,
AXI_WRAPPER_TYPE0_CFG);
entry = resource_list_first_type(&bridge->windows, IORESOURCE_MEM);
if (!entry)
return -ENODEV;
for (reg_no = 0; reg_no < (rockchip->mem_size >> 20); reg_no++) {
size = resource_size(entry->res);
pci_addr = entry->res->start - entry->offset;
rockchip->msg_bus_addr = pci_addr;
for (reg_no = 0; reg_no < (size >> 20); reg_no++) {
err = rockchip_pcie_prog_ob_atu(rockchip, reg_no + 1,
AXI_WRAPPER_MEM_WRITE,
20 - 1,
rockchip->mem_bus_addr +
(reg_no << 20),
pci_addr + (reg_no << 20),
0);
if (err) {
dev_err(dev, "program RC mem outbound ATU failed\n");
@ -832,14 +841,20 @@ static int rockchip_pcie_cfg_atu(struct rockchip_pcie *rockchip)
return err;
}
offset = rockchip->mem_size >> 20;
for (reg_no = 0; reg_no < (rockchip->io_size >> 20); reg_no++) {
entry = resource_list_first_type(&bridge->windows, IORESOURCE_IO);
if (!entry)
return -ENODEV;
size = resource_size(entry->res);
pci_addr = entry->res->start - entry->offset;
offset = size >> 20;
for (reg_no = 0; reg_no < (size >> 20); reg_no++) {
err = rockchip_pcie_prog_ob_atu(rockchip,
reg_no + 1 + offset,
AXI_WRAPPER_IO_WRITE,
20 - 1,
rockchip->io_bus_addr +
(reg_no << 20),
pci_addr + (reg_no << 20),
0);
if (err) {
dev_err(dev, "program RC io outbound ATU failed\n");
@ -852,8 +867,7 @@ static int rockchip_pcie_cfg_atu(struct rockchip_pcie *rockchip)
AXI_WRAPPER_NOR_MSG,
20 - 1, 0, 0);
rockchip->msg_bus_addr = rockchip->mem_bus_addr +
((reg_no + offset) << 20);
rockchip->msg_bus_addr += ((reg_no + offset) << 20);
return err;
}
@ -951,7 +965,6 @@ static int rockchip_pcie_probe(struct platform_device *pdev)
struct pci_bus *bus, *child;
struct pci_host_bridge *bridge;
struct resource *bus_res;
struct resource_entry *win;
int err;
if (!dev->of_node)
@ -997,27 +1010,6 @@ static int rockchip_pcie_probe(struct platform_device *pdev)
rockchip->root_bus_nr = bus_res->start;
/* Get the I/O and memory ranges from DT */
resource_list_for_each_entry(win, &bridge->windows) {
switch (resource_type(win->res)) {
case IORESOURCE_IO:
io = win->res;
io->name = "I/O";
rockchip->io_size = resource_size(io);
rockchip->io_bus_addr = io->start - win->offset;
rockchip->io = io;
break;
case IORESOURCE_MEM:
mem = win->res;
mem->name = "MEM";
rockchip->mem_size = resource_size(mem);
rockchip->mem_bus_addr = mem->start - win->offset;
break;
default:
continue;
}
}
err = rockchip_pcie_cfg_atu(rockchip);
if (err)
goto err_remove_irq_domain;

5
drivers/pci/controller/pcie-rockchip.h
View File

@ -304,13 +304,8 @@ struct rockchip_pcie {
struct irq_domain *irq_domain;
int offset;
struct pci_bus *root_bus;
struct resource *io;
phys_addr_t io_bus_addr;
u32 io_size;
void __iomem *msg_region;
u32 mem_size;
phys_addr_t msg_bus_addr;
phys_addr_t mem_bus_addr;
bool is_rc;
struct resource *mem_res;
};