aboutsummaryrefslogtreecommitdiff
path: root/arch/mips/ath79/pci.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/ath79/pci.c')
-rw-r--r--arch/mips/ath79/pci.c165
1 files changed, 154 insertions, 11 deletions
diff --git a/arch/mips/ath79/pci.c b/arch/mips/ath79/pci.c
index ca83abd9d31..730c0b03060 100644
--- a/arch/mips/ath79/pci.c
+++ b/arch/mips/ath79/pci.c
@@ -14,10 +14,11 @@
#include <linux/init.h>
#include <linux/pci.h>
+#include <linux/resource.h>
+#include <linux/platform_device.h>
#include <asm/mach-ath79/ar71xx_regs.h>
#include <asm/mach-ath79/ath79.h>
#include <asm/mach-ath79/irq.h>
-#include <asm/mach-ath79/pci.h>
#include "pci.h"
static int (*ath79_pci_plat_dev_init)(struct pci_dev *dev);
@@ -48,6 +49,21 @@ static const struct ath79_pci_irq ar724x_pci_irq_map[] __initconst = {
}
};
+static const struct ath79_pci_irq qca955x_pci_irq_map[] __initconst = {
+ {
+ .bus = 0,
+ .slot = 0,
+ .pin = 1,
+ .irq = ATH79_PCI_IRQ(0),
+ },
+ {
+ .bus = 1,
+ .slot = 0,
+ .pin = 1,
+ .irq = ATH79_PCI_IRQ(1),
+ },
+};
+
int __init pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
{
int irq = -1;
@@ -63,6 +79,9 @@ int __init pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
soc_is_ar9344()) {
ath79_pci_irq_map = ar724x_pci_irq_map;
ath79_pci_nr_irqs = ARRAY_SIZE(ar724x_pci_irq_map);
+ } else if (soc_is_qca955x()) {
+ ath79_pci_irq_map = qca955x_pci_irq_map;
+ ath79_pci_nr_irqs = ARRAY_SIZE(qca955x_pci_irq_map);
} else {
pr_crit("pci %s: invalid irq map\n",
pci_name((struct pci_dev *) dev));
@@ -74,7 +93,9 @@ int __init pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
const struct ath79_pci_irq *entry;
entry = &ath79_pci_irq_map[i];
- if (entry->slot == slot && entry->pin == pin) {
+ if (entry->bus == dev->bus->number &&
+ entry->slot == slot &&
+ entry->pin == pin) {
irq = entry->irq;
break;
}
@@ -110,21 +131,143 @@ void __init ath79_pci_set_plat_dev_init(int (*func)(struct pci_dev *dev))
ath79_pci_plat_dev_init = func;
}
-int __init ath79_register_pci(void)
+static struct platform_device *
+ath79_register_pci_ar71xx(void)
+{
+ struct platform_device *pdev;
+ struct resource res[4];
+
+ memset(res, 0, sizeof(res));
+
+ res[0].name = "cfg_base";
+ res[0].flags = IORESOURCE_MEM;
+ res[0].start = AR71XX_PCI_CFG_BASE;
+ res[0].end = AR71XX_PCI_CFG_BASE + AR71XX_PCI_CFG_SIZE - 1;
+
+ res[1].flags = IORESOURCE_IRQ;
+ res[1].start = ATH79_CPU_IRQ(2);
+ res[1].end = ATH79_CPU_IRQ(2);
+
+ res[2].name = "io_base";
+ res[2].flags = IORESOURCE_IO;
+ res[2].start = 0;
+ res[2].end = 0;
+
+ res[3].name = "mem_base";
+ res[3].flags = IORESOURCE_MEM;
+ res[3].start = AR71XX_PCI_MEM_BASE;
+ res[3].end = AR71XX_PCI_MEM_BASE + AR71XX_PCI_MEM_SIZE - 1;
+
+ pdev = platform_device_register_simple("ar71xx-pci", -1,
+ res, ARRAY_SIZE(res));
+ return pdev;
+}
+
+static struct platform_device *
+ath79_register_pci_ar724x(int id,
+ unsigned long cfg_base,
+ unsigned long ctrl_base,
+ unsigned long crp_base,
+ unsigned long mem_base,
+ unsigned long mem_size,
+ unsigned long io_base,
+ int irq)
{
- if (soc_is_ar71xx())
- return ar71xx_pcibios_init();
+ struct platform_device *pdev;
+ struct resource res[6];
+
+ memset(res, 0, sizeof(res));
+
+ res[0].name = "cfg_base";
+ res[0].flags = IORESOURCE_MEM;
+ res[0].start = cfg_base;
+ res[0].end = cfg_base + AR724X_PCI_CFG_SIZE - 1;
+
+ res[1].name = "ctrl_base";
+ res[1].flags = IORESOURCE_MEM;
+ res[1].start = ctrl_base;
+ res[1].end = ctrl_base + AR724X_PCI_CTRL_SIZE - 1;
+
+ res[2].flags = IORESOURCE_IRQ;
+ res[2].start = irq;
+ res[2].end = irq;
+
+ res[3].name = "mem_base";
+ res[3].flags = IORESOURCE_MEM;
+ res[3].start = mem_base;
+ res[3].end = mem_base + mem_size - 1;
+
+ res[4].name = "io_base";
+ res[4].flags = IORESOURCE_IO;
+ res[4].start = io_base;
+ res[4].end = io_base;
- if (soc_is_ar724x())
- return ar724x_pcibios_init(ATH79_CPU_IRQ_IP2);
+ res[5].name = "crp_base";
+ res[5].flags = IORESOURCE_MEM;
+ res[5].start = crp_base;
+ res[5].end = crp_base + AR724X_PCI_CRP_SIZE - 1;
- if (soc_is_ar9342() || soc_is_ar9344()) {
+ pdev = platform_device_register_simple("ar724x-pci", id,
+ res, ARRAY_SIZE(res));
+ return pdev;
+}
+
+int __init ath79_register_pci(void)
+{
+ struct platform_device *pdev = NULL;
+
+ if (soc_is_ar71xx()) {
+ pdev = ath79_register_pci_ar71xx();
+ } else if (soc_is_ar724x()) {
+ pdev = ath79_register_pci_ar724x(-1,
+ AR724X_PCI_CFG_BASE,
+ AR724X_PCI_CTRL_BASE,
+ AR724X_PCI_CRP_BASE,
+ AR724X_PCI_MEM_BASE,
+ AR724X_PCI_MEM_SIZE,
+ 0,
+ ATH79_CPU_IRQ(2));
+ } else if (soc_is_ar9342() ||
+ soc_is_ar9344()) {
u32 bootstrap;
bootstrap = ath79_reset_rr(AR934X_RESET_REG_BOOTSTRAP);
- if (bootstrap & AR934X_BOOTSTRAP_PCIE_RC)
- return ar724x_pcibios_init(ATH79_IP2_IRQ(0));
+ if ((bootstrap & AR934X_BOOTSTRAP_PCIE_RC) == 0)
+ return -ENODEV;
+
+ pdev = ath79_register_pci_ar724x(-1,
+ AR724X_PCI_CFG_BASE,
+ AR724X_PCI_CTRL_BASE,
+ AR724X_PCI_CRP_BASE,
+ AR724X_PCI_MEM_BASE,
+ AR724X_PCI_MEM_SIZE,
+ 0,
+ ATH79_IP2_IRQ(0));
+ } else if (soc_is_qca9558()) {
+ pdev = ath79_register_pci_ar724x(0,
+ QCA955X_PCI_CFG_BASE0,
+ QCA955X_PCI_CTRL_BASE0,
+ QCA955X_PCI_CRP_BASE0,
+ QCA955X_PCI_MEM_BASE0,
+ QCA955X_PCI_MEM_SIZE,
+ 0,
+ ATH79_IP2_IRQ(0));
+
+ pdev = ath79_register_pci_ar724x(1,
+ QCA955X_PCI_CFG_BASE1,
+ QCA955X_PCI_CTRL_BASE1,
+ QCA955X_PCI_CRP_BASE1,
+ QCA955X_PCI_MEM_BASE1,
+ QCA955X_PCI_MEM_SIZE,
+ 1,
+ ATH79_IP3_IRQ(2));
+ } else {
+ /* No PCI support */
+ return -ENODEV;
}
- return -ENODEV;
+ if (!pdev)
+ pr_err("unable to register PCI controller device\n");
+
+ return pdev ? 0 : -ENODEV;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-19 22:09:08 +0000