/*
* Setup PCIE BARs and Address Decode Wins:
* BAR[0,2] -> disabled, BAR[1] -> covers all DRAM banks
* WIN[0-3] -> DRAM bank[0-3]
*/
static void __init orion_pcie_setup_wins(void __iomem *base)
{
const struct mbus_dram_target_info *dram;
u32 size;
int i;
dram = mv_mbus_dram_info();
/*
* First, disable and clear BARs and windows.
*/
for (i = 1; i <= 2; i++) {
writel(0, base + PCIE_BAR_CTRL_OFF(i));
writel(0, base + PCIE_BAR_LO_OFF(i));
writel(0, base + PCIE_BAR_HI_OFF(i));
}
for (i = 0; i < 5; i++) {
writel(0, base + PCIE_WIN04_CTRL_OFF(i));
writel(0, base + PCIE_WIN04_BASE_OFF(i));
writel(0, base + PCIE_WIN04_REMAP_OFF(i));
}
writel(0, base + PCIE_WIN5_CTRL_OFF);
writel(0, base + PCIE_WIN5_BASE_OFF);
writel(0, base + PCIE_WIN5_REMAP_OFF);
/*
* Setup windows for DDR banks. Count total DDR size on the fly.
*/
size = 0;
for (i = 0; i < dram->num_cs; i++) {
const struct mbus_dram_window *cs = dram->cs + i;
writel(cs->base & 0xffff0000, base + PCIE_WIN04_BASE_OFF(i));
writel(0, base + PCIE_WIN04_REMAP_OFF(i));
writel(((cs->size - 1) & 0xffff0000) |
(cs->mbus_attr << 8) |
(dram->mbus_dram_target_id << 4) | 1,
base + PCIE_WIN04_CTRL_OFF(i));
size += cs->size;
}
/*
* Round up 'size' to the nearest power of two.
*/
if ((size & (size - 1)) != 0)
size = 1 << fls(size);
/*
* Setup BAR[1] to all DRAM banks.
*/
writel(dram->cs[0].base, base + PCIE_BAR_LO_OFF(1));
writel(0, base + PCIE_BAR_HI_OFF(1));
writel(((size - 1) & 0xffff0000) | 1, base + PCIE_BAR_CTRL_OFF(1));
}
/*
* Setup PCIE BARs and Address Decode Wins:
* BAR[0,2] -> disabled, BAR[1] -> covers all DRAM banks
* WIN[0-3] -> DRAM bank[0-3]
*/
static void orion_pcie_setup_wins(void __iomem *base,
struct mbus_dram_target_info *dram)
{
u32 size;
int i;
if (dram == NULL)
return;
/*
* First, disable and clear BARs and windows.
*/
for (i = 1; i <= 2; i++) {
writel(0, base + PCIE_BAR_CTRL_OFF(i));
writel(0, base + PCIE_BAR_LO_OFF(i));
writel(0, base + PCIE_BAR_HI_OFF(i));
}
for (i = 0; i < 5; i++) {
writel(0, base + PCIE_WIN04_CTRL_OFF(i));
writel(0, base + PCIE_WIN04_BASE_OFF(i));
writel(0, base + PCIE_WIN04_REMAP_OFF(i));
}
writel(0, base + PCIE_WIN5_CTRL_OFF);
writel(0, base + PCIE_WIN5_BASE_OFF);
writel(0, base + PCIE_WIN5_REMAP_OFF);
/*
* Setup windows for DDR banks. Count total DDR size on the fly.
*/
size = 0;
for (i = 0; i < dram->num_cs; i++) {
struct mbus_dram_window *cs = dram->cs + i;
writel(cs->base & 0xffff0000, base + PCIE_WIN04_BASE_OFF(i));
writel(0, base + PCIE_WIN04_REMAP_OFF(i));
writel(((cs->size - 1) & 0xffff0000) |
(cs->mbus_attr << 8) |
(dram->mbus_dram_target_id << 4) | 1,
base + PCIE_WIN04_CTRL_OFF(i));
size += cs->size;
}
/*
* Setup BAR[1] to all DRAM banks.
*/
writel(dram->cs[0].base, base + PCIE_BAR_LO_OFF(1));
writel(0, base + PCIE_BAR_HI_OFF(1));
writel(((size - 1) & 0xffff0000) | 1, base + PCIE_BAR_CTRL_OFF(1));
}
