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pci: layerscape: add LS2088A series SoC pcie support

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The LS2088A series SoCs has different physical memory map address and
CCSR registers address against LS2080A series SoCs.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
This commit is contained in:
Hou Zhiqiang
2017-03-03 12:35:09 +08:00
committed by York Sun
parent 33ed57495a
commit 3d8553f0a3
3 changed files with 89 additions and 0 deletions
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46
arch/arm/cpu/armv8/fsl-layerscape/cpu.c
View File

@@ -89,6 +89,49 @@ static inline void early_mmu_setup(void)
set_sctlr(get_sctlr() | CR_M);
}
static void fix_pcie_mmu_map(void)
{
#ifdef CONFIG_LS2080A
unsigned int i;
u32 svr, ver;
struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
svr = gur_in32(&gur->svr);
ver = SVR_SOC_VER(svr);
/* Fix PCIE base and size for LS2088A */
if ((ver == SVR_LS2088A) || (ver == SVR_LS2084A) ||
(ver == SVR_LS2048A) || (ver == SVR_LS2044A)) {
for (i = 0; i < ARRAY_SIZE(final_map); i++) {
switch (final_map[i].phys) {
case CONFIG_SYS_PCIE1_PHYS_ADDR:
final_map[i].phys = 0x2000000000ULL;
final_map[i].virt = 0x2000000000ULL;
final_map[i].size = 0x800000000ULL;
break;
case CONFIG_SYS_PCIE2_PHYS_ADDR:
final_map[i].phys = 0x2800000000ULL;
final_map[i].virt = 0x2800000000ULL;
final_map[i].size = 0x800000000ULL;
break;
case CONFIG_SYS_PCIE3_PHYS_ADDR:
final_map[i].phys = 0x3000000000ULL;
final_map[i].virt = 0x3000000000ULL;
final_map[i].size = 0x800000000ULL;
break;
case CONFIG_SYS_PCIE4_PHYS_ADDR:
final_map[i].phys = 0x3800000000ULL;
final_map[i].virt = 0x3800000000ULL;
final_map[i].size = 0x800000000ULL;
break;
default:
break;
}
}
}
#endif
}
/*
* The final tables look similar to early tables, but different in detail.
* These tables are in DRAM. Sub tables are added to enable cache for
@@ -103,6 +146,9 @@ static inline void final_mmu_setup(void)
unsigned int el = current_el();
int index;
/* fix the final_map before filling in the block entries */
fix_pcie_mmu_map();
mem_map = final_map;
/* Update mapping for DDR to actual size */

35
drivers/pci/pcie_layerscape.c
View File

@@ -167,6 +167,27 @@ static void ls_pcie_setup_atu(struct ls_pcie *pcie)
pci_get_regions(pcie->bus, &io, &mem, &pref);
idx = PCIE_ATU_REGION_INDEX1 + 1;
/* Fix the pcie memory map for LS2088A series SoCs */
svr = (svr >> SVR_VAR_PER_SHIFT) & 0xFFFFFE;
if (svr == SVR_LS2088A || svr == SVR_LS2084A ||
svr == SVR_LS2048A || svr == SVR_LS2044A) {
if (io)
io->phys_start = (io->phys_start &
(PCIE_PHYS_SIZE - 1)) +
LS2088A_PCIE1_PHYS_ADDR +
LS2088A_PCIE_PHYS_SIZE * pcie->idx;
if (mem)
mem->phys_start = (mem->phys_start &
(PCIE_PHYS_SIZE - 1)) +
LS2088A_PCIE1_PHYS_ADDR +
LS2088A_PCIE_PHYS_SIZE * pcie->idx;
if (pref)
pref->phys_start = (pref->phys_start &
(PCIE_PHYS_SIZE - 1)) +
LS2088A_PCIE1_PHYS_ADDR +
LS2088A_PCIE_PHYS_SIZE * pcie->idx;
}
if (io)
/* ATU : OUTBOUND : IO */
ls_pcie_atu_outbound_set(pcie, idx++,
@@ -449,6 +470,7 @@ static int ls_pcie_probe(struct udevice *dev)
u8 header_type;
u16 link_sta;
bool ep_mode;
uint svr;
int ret;
pcie->bus = dev;
@@ -502,6 +524,19 @@ static int ls_pcie_probe(struct udevice *dev)
return ret;
}
/*
* Fix the pcie memory map address and PF control registers address
* for LS2088A series SoCs
*/
svr = get_svr();
svr = (svr >> SVR_VAR_PER_SHIFT) & 0xFFFFFE;
if (svr == SVR_LS2088A || svr == SVR_LS2084A ||
svr == SVR_LS2048A || svr == SVR_LS2044A) {
pcie->cfg_res.start = LS2088A_PCIE1_PHYS_ADDR +
LS2088A_PCIE_PHYS_SIZE * pcie->idx;
pcie->ctrl = pcie->lut + 0x40000;
}
pcie->cfg0 = map_physmem(pcie->cfg_res.start,
fdt_resource_size(&pcie->cfg_res),
MAP_NOCACHE);

8
drivers/pci/pcie_layerscape.h
View File

@@ -26,6 +26,10 @@
#define CONFIG_SYS_PCI_EP_MEMORY_BASE CONFIG_SYS_LOAD_ADDR
#endif
#define PCIE_PHYS_SIZE 0x200000000
#define LS2088A_PCIE_PHYS_SIZE 0x800000000
#define LS2088A_PCIE1_PHYS_ADDR 0x2000000000
/* iATU registers */
#define PCIE_ATU_VIEWPORT 0x900
#define PCIE_ATU_REGION_INBOUND (0x1 << 31)
@@ -109,6 +113,10 @@
#define SVR_LS102XA 0
#define SVR_VAR_PER_SHIFT 8
#define SVR_LS102XA_MASK 0x700
#define SVR_LS2088A 0x870900
#define SVR_LS2084A 0x870910
#define SVR_LS2048A 0x870920
#define SVR_LS2044A 0x870930
/* LS1021a PCIE space */
#define LS1021_PCIE_SPACE_OFFSET 0x4000000000ULL