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powerpc/476fpe: Add 476fpe SoC code

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Based on original work by David 'Shaggy' Kleikamp.

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
This commit is contained in:
Tony Breeds 2011-11-30 21:39:23 +00:00 committed by Josh Boyer
parent 075bcf5879
commit df777bd39a
6 changed files with 84 additions and 1 deletions
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1
arch/powerpc/include/asm/reg.h
View File

@ -951,6 +951,7 @@
#define PVR_403GCX 0x00201400
#define PVR_405GP 0x40110000
#define PVR_476 0x11a52000
#define PVR_476FPE 0x7ff50000
#define PVR_STB03XXX 0x40310000
#define PVR_NP405H 0x41410000
#define PVR_NP405L 0x41610000

14
arch/powerpc/kernel/cputable.c
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@ -1843,6 +1843,20 @@ static struct cpu_spec __initdata cpu_specs[] = {
.machine_check = machine_check_47x,
.platform = "ppc470",
},
{ /* 476fpe */
.pvr_mask = 0xffff0000,
.pvr_value = 0x7ff50000,
.cpu_name = "476fpe",
.cpu_features = CPU_FTRS_47X | CPU_FTR_476_DD2,
.cpu_user_features = COMMON_USER_BOOKE |
PPC_FEATURE_HAS_FPU,
.mmu_features = MMU_FTR_TYPE_47x |
MMU_FTR_USE_TLBIVAX_BCAST | MMU_FTR_LOCK_BCAST_INVAL,
.icache_bsize = 32,
.dcache_bsize = 128,
.machine_check = machine_check_47x,
.platform = "ppc470",
},
{ /* 476 iss */
.pvr_mask = 0xffff0000,
.pvr_value = 0x00050000,

2
arch/powerpc/kernel/head_44x.S
View File

@ -732,6 +732,8 @@ _GLOBAL(init_cpu_state)
/* We use the PVR to differenciate 44x cores from 476 */
mfspr r3,SPRN_PVR
srwi r3,r3,16
cmplwi cr0,r3,PVR_476FPE@h
beq head_start_47x
cmplwi cr0,r3,PVR_476@h
beq head_start_47x
cmplwi cr0,r3,PVR_476_ISS@h

4
arch/powerpc/platforms/44x/Kconfig
View File

@ -308,6 +308,10 @@ config 460SX
select IBM_EMAC_ZMII
select IBM_EMAC_TAH
config 476FPE
bool
select PPC_FPU
config APM821xx
bool
select PPC_FPU

57
arch/powerpc/sysdev/ppc4xx_pci.c
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@ -1296,6 +1296,52 @@ static struct ppc4xx_pciex_hwops ppc405ex_pcie_hwops __initdata =
#endif /* CONFIG_40x */
#ifdef CONFIG_476FPE
static int __init ppc_476fpe_pciex_core_init(struct device_node *np)
{
return 4;
}
static void __init ppc_476fpe_pciex_check_link(struct ppc4xx_pciex_port *port)
{
u32 timeout_ms = 20;
u32 val = 0, mask = (PECFG_TLDLP_LNKUP|PECFG_TLDLP_PRESENT);
void __iomem *mbase = ioremap(port->cfg_space.start + 0x10000000,
0x1000);
printk(KERN_INFO "PCIE%d: Checking link...\n", port->index);
if (mbase == NULL) {
printk(KERN_WARNING "PCIE%d: failed to get cfg space\n",
port->index);
return;
}
while (timeout_ms--) {
val = in_le32(mbase + PECFG_TLDLP);
if ((val & mask) == mask)
break;
msleep(10);
}
if (val & PECFG_TLDLP_PRESENT) {
printk(KERN_INFO "PCIE%d: link is up !\n", port->index);
port->link = 1;
} else
printk(KERN_WARNING "PCIE%d: Link up failed\n", port->index);
iounmap(mbase);
return;
}
static struct ppc4xx_pciex_hwops ppc_476fpe_pcie_hwops __initdata =
{
.core_init = ppc_476fpe_pciex_core_init,
.check_link = ppc_476fpe_pciex_check_link,
};
#endif /* CONFIG_476FPE */
/* Check that the core has been initied and if not, do it */
static int __init ppc4xx_pciex_check_core_init(struct device_node *np)
{
@ -1320,6 +1366,10 @@ static int __init ppc4xx_pciex_check_core_init(struct device_node *np)
#ifdef CONFIG_40x
if (of_device_is_compatible(np, "ibm,plb-pciex-405ex"))
ppc4xx_pciex_hwops = &ppc405ex_pcie_hwops;
#endif
#ifdef CONFIG_476FPE
if (of_device_is_compatible(np, "ibm,plb-pciex-476fpe"))
ppc4xx_pciex_hwops = &ppc_476fpe_pcie_hwops;
#endif
if (ppc4xx_pciex_hwops == NULL) {
printk(KERN_WARNING "PCIE: unknown host type %s\n",
@ -1629,6 +1679,10 @@ static int __init ppc4xx_setup_one_pciex_POM(struct ppc4xx_pciex_port *port,
dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKL,
sa | DCRO_PEGPL_460SX_OMR1MSKL_UOT
| DCRO_PEGPL_OMRxMSKL_VAL);
else if (of_device_is_compatible(port->node, "ibm,plb-pciex-476fpe"))
dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKL,
sa | DCRO_PEGPL_476FPE_OMR1MSKL_UOT
| DCRO_PEGPL_OMRxMSKL_VAL);
else
dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKL,
sa | DCRO_PEGPL_OMR1MSKL_UOT
@ -1753,7 +1807,8 @@ static void __init ppc4xx_configure_pciex_PIMs(struct ppc4xx_pciex_port *port,
if (res->flags & IORESOURCE_PREFETCH)
sa |= PCI_BASE_ADDRESS_MEM_PREFETCH;
if (of_device_is_compatible(port->node, "ibm,plb-pciex-460sx"))
if (of_device_is_compatible(port->node, "ibm,plb-pciex-460sx") ||
of_device_is_compatible(port->node, "ibm,plb-pciex-476fpe"))
sa |= PCI_BASE_ADDRESS_MEM_TYPE_64;
out_le32(mbase + PECFG_BAR0HMPA, RES_TO_U32_HIGH(sa));

7
arch/powerpc/sysdev/ppc4xx_pci.h
View File

@ -476,6 +476,13 @@
#define DCRO_PEGPL_OMR1MSKL_UOT 0x00000002
#define DCRO_PEGPL_OMR3MSKL_IO 0x00000002
/* 476FPE */
#define PCCFG_LCPA 0x270
#define PECFG_TLDLP 0x3F8
#define PECFG_TLDLP_LNKUP 0x00000008
#define PECFG_TLDLP_PRESENT 0x00000010
#define DCRO_PEGPL_476FPE_OMR1MSKL_UOT 0x00000004
/* SDR Bit Mappings */
#define PESDRx_RCSSET_HLDPLB 0x10000000
#define PESDRx_RCSSET_RSTGU 0x01000000