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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/arch/powerpc/platforms/52xx/mpc52xx_pci.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/arch/powerpc/platforms/52xx/mpc52xx_pci.c')
-rw-r--r--ANDROID_3.4.5/arch/powerpc/platforms/52xx/mpc52xx_pci.c428
1 files changed, 0 insertions, 428 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/platforms/52xx/mpc52xx_pci.c b/ANDROID_3.4.5/arch/powerpc/platforms/52xx/mpc52xx_pci.c
deleted file mode 100644
index e2d401ad..00000000
--- a/ANDROID_3.4.5/arch/powerpc/platforms/52xx/mpc52xx_pci.c
+++ /dev/null
@@ -1,428 +0,0 @@
-/*
- * PCI code for the Freescale MPC52xx embedded CPU.
- *
- * Copyright (C) 2006 Secret Lab Technologies Ltd.
- * Grant Likely <grant.likely@secretlab.ca>
- * Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com>
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- */
-
-#undef DEBUG
-
-#include <asm/pci.h>
-#include <asm/mpc52xx.h>
-#include <asm/delay.h>
-#include <asm/machdep.h>
-#include <linux/kernel.h>
-
-
-/* ======================================================================== */
-/* Structures mapping & Defines for PCI Unit */
-/* ======================================================================== */
-
-#define MPC52xx_PCI_GSCR_BM 0x40000000
-#define MPC52xx_PCI_GSCR_PE 0x20000000
-#define MPC52xx_PCI_GSCR_SE 0x10000000
-#define MPC52xx_PCI_GSCR_XLB2PCI_MASK 0x07000000
-#define MPC52xx_PCI_GSCR_XLB2PCI_SHIFT 24
-#define MPC52xx_PCI_GSCR_IPG2PCI_MASK 0x00070000
-#define MPC52xx_PCI_GSCR_IPG2PCI_SHIFT 16
-#define MPC52xx_PCI_GSCR_BME 0x00004000
-#define MPC52xx_PCI_GSCR_PEE 0x00002000
-#define MPC52xx_PCI_GSCR_SEE 0x00001000
-#define MPC52xx_PCI_GSCR_PR 0x00000001
-
-
-#define MPC52xx_PCI_IWBTAR_TRANSLATION(proc_ad,pci_ad,size) \
- ( ( (proc_ad) & 0xff000000 ) | \
- ( (((size) - 1) >> 8) & 0x00ff0000 ) | \
- ( ((pci_ad) >> 16) & 0x0000ff00 ) )
-
-#define MPC52xx_PCI_IWCR_PACK(win0,win1,win2) (((win0) << 24) | \
- ((win1) << 16) | \
- ((win2) << 8))
-
-#define MPC52xx_PCI_IWCR_DISABLE 0x0
-#define MPC52xx_PCI_IWCR_ENABLE 0x1
-#define MPC52xx_PCI_IWCR_READ 0x0
-#define MPC52xx_PCI_IWCR_READ_LINE 0x2
-#define MPC52xx_PCI_IWCR_READ_MULTI 0x4
-#define MPC52xx_PCI_IWCR_MEM 0x0
-#define MPC52xx_PCI_IWCR_IO 0x8
-
-#define MPC52xx_PCI_TCR_P 0x01000000
-#define MPC52xx_PCI_TCR_LD 0x00010000
-#define MPC52xx_PCI_TCR_WCT8 0x00000008
-
-#define MPC52xx_PCI_TBATR_DISABLE 0x0
-#define MPC52xx_PCI_TBATR_ENABLE 0x1
-
-struct mpc52xx_pci {
- u32 idr; /* PCI + 0x00 */
- u32 scr; /* PCI + 0x04 */
- u32 ccrir; /* PCI + 0x08 */
- u32 cr1; /* PCI + 0x0C */
- u32 bar0; /* PCI + 0x10 */
- u32 bar1; /* PCI + 0x14 */
- u8 reserved1[16]; /* PCI + 0x18 */
- u32 ccpr; /* PCI + 0x28 */
- u32 sid; /* PCI + 0x2C */
- u32 erbar; /* PCI + 0x30 */
- u32 cpr; /* PCI + 0x34 */
- u8 reserved2[4]; /* PCI + 0x38 */
- u32 cr2; /* PCI + 0x3C */
- u8 reserved3[32]; /* PCI + 0x40 */
- u32 gscr; /* PCI + 0x60 */
- u32 tbatr0; /* PCI + 0x64 */
- u32 tbatr1; /* PCI + 0x68 */
- u32 tcr; /* PCI + 0x6C */
- u32 iw0btar; /* PCI + 0x70 */
- u32 iw1btar; /* PCI + 0x74 */
- u32 iw2btar; /* PCI + 0x78 */
- u8 reserved4[4]; /* PCI + 0x7C */
- u32 iwcr; /* PCI + 0x80 */
- u32 icr; /* PCI + 0x84 */
- u32 isr; /* PCI + 0x88 */
- u32 arb; /* PCI + 0x8C */
- u8 reserved5[104]; /* PCI + 0x90 */
- u32 car; /* PCI + 0xF8 */
- u8 reserved6[4]; /* PCI + 0xFC */
-};
-
-/* MPC5200 device tree match tables */
-const struct of_device_id mpc52xx_pci_ids[] __initconst = {
- { .type = "pci", .compatible = "fsl,mpc5200-pci", },
- { .type = "pci", .compatible = "mpc5200-pci", },
- {}
-};
-
-/* ======================================================================== */
-/* PCI configuration access */
-/* ======================================================================== */
-
-static int
-mpc52xx_pci_read_config(struct pci_bus *bus, unsigned int devfn,
- int offset, int len, u32 *val)
-{
- struct pci_controller *hose = pci_bus_to_host(bus);
- u32 value;
-
- if (ppc_md.pci_exclude_device)
- if (ppc_md.pci_exclude_device(hose, bus->number, devfn))
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- out_be32(hose->cfg_addr,
- (1 << 31) |
- (bus->number << 16) |
- (devfn << 8) |
- (offset & 0xfc));
- mb();
-
-#if defined(CONFIG_PPC_MPC5200_BUGFIX)
- if (bus->number) {
- /* workaround for the bug 435 of the MPC5200 (L25R);
- * Don't do 32 bits config access during type-1 cycles */
- switch (len) {
- case 1:
- value = in_8(((u8 __iomem *)hose->cfg_data) +
- (offset & 3));
- break;
- case 2:
- value = in_le16(((u16 __iomem *)hose->cfg_data) +
- ((offset>>1) & 1));
- break;
-
- default:
- value = in_le16((u16 __iomem *)hose->cfg_data) |
- (in_le16(((u16 __iomem *)hose->cfg_data) + 1) << 16);
- break;
- }
- }
- else
-#endif
- {
- value = in_le32(hose->cfg_data);
-
- if (len != 4) {
- value >>= ((offset & 0x3) << 3);
- value &= 0xffffffff >> (32 - (len << 3));
- }
- }
-
- *val = value;
-
- out_be32(hose->cfg_addr, 0);
- mb();
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int
-mpc52xx_pci_write_config(struct pci_bus *bus, unsigned int devfn,
- int offset, int len, u32 val)
-{
- struct pci_controller *hose = pci_bus_to_host(bus);
- u32 value, mask;
-
- if (ppc_md.pci_exclude_device)
- if (ppc_md.pci_exclude_device(hose, bus->number, devfn))
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- out_be32(hose->cfg_addr,
- (1 << 31) |
- (bus->number << 16) |
- (devfn << 8) |
- (offset & 0xfc));
- mb();
-
-#if defined(CONFIG_PPC_MPC5200_BUGFIX)
- if (bus->number) {
- /* workaround for the bug 435 of the MPC5200 (L25R);
- * Don't do 32 bits config access during type-1 cycles */
- switch (len) {
- case 1:
- out_8(((u8 __iomem *)hose->cfg_data) +
- (offset & 3), val);
- break;
- case 2:
- out_le16(((u16 __iomem *)hose->cfg_data) +
- ((offset>>1) & 1), val);
- break;
-
- default:
- out_le16((u16 __iomem *)hose->cfg_data,
- (u16)val);
- out_le16(((u16 __iomem *)hose->cfg_data) + 1,
- (u16)(val>>16));
- break;
- }
- }
- else
-#endif
- {
- if (len != 4) {
- value = in_le32(hose->cfg_data);
-
- offset = (offset & 0x3) << 3;
- mask = (0xffffffff >> (32 - (len << 3)));
- mask <<= offset;
-
- value &= ~mask;
- val = value | ((val << offset) & mask);
- }
-
- out_le32(hose->cfg_data, val);
- }
- mb();
-
- out_be32(hose->cfg_addr, 0);
- mb();
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops mpc52xx_pci_ops = {
- .read = mpc52xx_pci_read_config,
- .write = mpc52xx_pci_write_config
-};
-
-
-/* ======================================================================== */
-/* PCI setup */
-/* ======================================================================== */
-
-static void __init
-mpc52xx_pci_setup(struct pci_controller *hose,
- struct mpc52xx_pci __iomem *pci_regs, phys_addr_t pci_phys)
-{
- struct resource *res;
- u32 tmp;
- int iwcr0 = 0, iwcr1 = 0, iwcr2 = 0;
-
- pr_debug("mpc52xx_pci_setup(hose=%p, pci_regs=%p)\n", hose, pci_regs);
-
- /* pci_process_bridge_OF_ranges() found all our addresses for us;
- * now store them in the right places */
- hose->cfg_addr = &pci_regs->car;
- hose->cfg_data = hose->io_base_virt;
-
- /* Control regs */
- tmp = in_be32(&pci_regs->scr);
- tmp |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
- out_be32(&pci_regs->scr, tmp);
-
- /* Memory windows */
- res = &hose->mem_resources[0];
- if (res->flags) {
- pr_debug("mem_resource[0] = "
- "{.start=%llx, .end=%llx, .flags=%llx}\n",
- (unsigned long long)res->start,
- (unsigned long long)res->end,
- (unsigned long long)res->flags);
- out_be32(&pci_regs->iw0btar,
- MPC52xx_PCI_IWBTAR_TRANSLATION(res->start, res->start,
- resource_size(res)));
- iwcr0 = MPC52xx_PCI_IWCR_ENABLE | MPC52xx_PCI_IWCR_MEM;
- if (res->flags & IORESOURCE_PREFETCH)
- iwcr0 |= MPC52xx_PCI_IWCR_READ_MULTI;
- else
- iwcr0 |= MPC52xx_PCI_IWCR_READ;
- }
-
- res = &hose->mem_resources[1];
- if (res->flags) {
- pr_debug("mem_resource[1] = {.start=%x, .end=%x, .flags=%lx}\n",
- res->start, res->end, res->flags);
- out_be32(&pci_regs->iw1btar,
- MPC52xx_PCI_IWBTAR_TRANSLATION(res->start, res->start,
- resource_size(res)));
- iwcr1 = MPC52xx_PCI_IWCR_ENABLE | MPC52xx_PCI_IWCR_MEM;
- if (res->flags & IORESOURCE_PREFETCH)
- iwcr1 |= MPC52xx_PCI_IWCR_READ_MULTI;
- else
- iwcr1 |= MPC52xx_PCI_IWCR_READ;
- }
-
- /* IO resources */
- res = &hose->io_resource;
- if (!res) {
- printk(KERN_ERR "%s: Didn't find IO resources\n", __FILE__);
- return;
- }
- pr_debug(".io_resource={.start=%llx,.end=%llx,.flags=%llx} "
- ".io_base_phys=0x%p\n",
- (unsigned long long)res->start,
- (unsigned long long)res->end,
- (unsigned long long)res->flags, (void*)hose->io_base_phys);
- out_be32(&pci_regs->iw2btar,
- MPC52xx_PCI_IWBTAR_TRANSLATION(hose->io_base_phys,
- res->start,
- resource_size(res)));
- iwcr2 = MPC52xx_PCI_IWCR_ENABLE | MPC52xx_PCI_IWCR_IO;
-
- /* Set all the IWCR fields at once; they're in the same reg */
- out_be32(&pci_regs->iwcr, MPC52xx_PCI_IWCR_PACK(iwcr0, iwcr1, iwcr2));
-
- /* Map IMMR onto PCI bus */
- pci_phys &= 0xfffc0000; /* bar0 has only 14 significant bits */
- out_be32(&pci_regs->tbatr0, MPC52xx_PCI_TBATR_ENABLE | pci_phys);
- out_be32(&pci_regs->bar0, PCI_BASE_ADDRESS_MEM_PREFETCH | pci_phys);
-
- /* Map memory onto PCI bus */
- out_be32(&pci_regs->tbatr1, MPC52xx_PCI_TBATR_ENABLE);
- out_be32(&pci_regs->bar1, PCI_BASE_ADDRESS_MEM_PREFETCH);
-
- out_be32(&pci_regs->tcr, MPC52xx_PCI_TCR_LD | MPC52xx_PCI_TCR_WCT8);
-
- tmp = in_be32(&pci_regs->gscr);
-#if 0
- /* Reset the exteral bus ( internal PCI controller is NOT resetted ) */
- /* Not necessary and can be a bad thing if for example the bootloader
- is displaying a splash screen or ... Just left here for
- documentation purpose if anyone need it */
- out_be32(&pci_regs->gscr, tmp | MPC52xx_PCI_GSCR_PR);
- udelay(50);
-#endif
-
- /* Make sure the PCI bridge is out of reset */
- out_be32(&pci_regs->gscr, tmp & ~MPC52xx_PCI_GSCR_PR);
-}
-
-static void
-mpc52xx_pci_fixup_resources(struct pci_dev *dev)
-{
- int i;
-
- pr_debug("mpc52xx_pci_fixup_resources() %.4x:%.4x\n",
- dev->vendor, dev->device);
-
- /* We don't rely on boot loader for PCI and resets all
- devices */
- for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
- struct resource *res = &dev->resource[i];
- if (res->end > res->start) { /* Only valid resources */
- res->end -= res->start;
- res->start = 0;
- res->flags |= IORESOURCE_UNSET;
- }
- }
-
- /* The PCI Host bridge of MPC52xx has a prefetch memory resource
- fixed to 1Gb. Doesn't fit in the resource system so we remove it */
- if ( (dev->vendor == PCI_VENDOR_ID_MOTOROLA) &&
- ( dev->device == PCI_DEVICE_ID_MOTOROLA_MPC5200
- || dev->device == PCI_DEVICE_ID_MOTOROLA_MPC5200B) ) {
- struct resource *res = &dev->resource[1];
- res->start = res->end = res->flags = 0;
- }
-}
-
-int __init
-mpc52xx_add_bridge(struct device_node *node)
-{
- int len;
- struct mpc52xx_pci __iomem *pci_regs;
- struct pci_controller *hose;
- const int *bus_range;
- struct resource rsrc;
-
- pr_debug("Adding MPC52xx PCI host bridge %s\n", node->full_name);
-
- pci_add_flags(PCI_REASSIGN_ALL_BUS);
-
- if (of_address_to_resource(node, 0, &rsrc) != 0) {
- printk(KERN_ERR "Can't get %s resources\n", node->full_name);
- return -EINVAL;
- }
-
- bus_range = of_get_property(node, "bus-range", &len);
- if (bus_range == NULL || len < 2 * sizeof(int)) {
- printk(KERN_WARNING "Can't get %s bus-range, assume bus 0\n",
- node->full_name);
- bus_range = NULL;
- }
-
- /* There are some PCI quirks on the 52xx, register the hook to
- * fix them. */
- ppc_md.pcibios_fixup_resources = mpc52xx_pci_fixup_resources;
-
- /* Alloc and initialize the pci controller. Values in the device
- * tree are needed to configure the 52xx PCI controller. Rather
- * than parse the tree here, let pci_process_bridge_OF_ranges()
- * do it for us and extract the values after the fact */
- hose = pcibios_alloc_controller(node);
- if (!hose)
- return -ENOMEM;
-
- hose->first_busno = bus_range ? bus_range[0] : 0;
- hose->last_busno = bus_range ? bus_range[1] : 0xff;
-
- hose->ops = &mpc52xx_pci_ops;
-
- pci_regs = ioremap(rsrc.start, resource_size(&rsrc));
- if (!pci_regs)
- return -ENOMEM;
-
- pci_process_bridge_OF_ranges(hose, node, 1);
-
- /* Finish setting up PCI using values obtained by
- * pci_proces_bridge_OF_ranges */
- mpc52xx_pci_setup(hose, pci_regs, rsrc.start);
-
- return 0;
-}
-
-void __init mpc52xx_setup_pci(void)
-{
- struct device_node *pci;
-
- pci = of_find_matching_node(NULL, mpc52xx_pci_ids);
- if (!pci)
- return;
-
- mpc52xx_add_bridge(pci);
- of_node_put(pci);
-}