Gabor Juhos
15 years ago
parent
1f114b0dbd
commit
70d31d46a8
@ -0,0 +1,153 @@ |
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/*
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* Atheros AP94 reference board PCI initialization |
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* |
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* Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org> |
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* |
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* This program is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 as published |
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* by the Free Software Foundation. |
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*/ |
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#include <linux/pci.h> |
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#include <linux/ath9k_platform.h> |
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#include <linux/delay.h> |
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#include <asm/mach-ar71xx/ar71xx.h> |
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#include <asm/mach-ar71xx/pci.h> |
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#include "dev-ap94-pci.h" |
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static struct ath9k_platform_data ap94_wmac0_data; |
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static struct ath9k_platform_data ap94_wmac1_data; |
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static char ap94_wmac0_mac[6]; |
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static char ap94_wmac1_mac[6]; |
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static int ap94_pci_fixup_enabled; |
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static struct ar71xx_pci_irq ap94_pci_irqs[] __initdata = { |
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{ |
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.slot = 0, |
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.pin = 1, |
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.irq = AR71XX_PCI_IRQ_DEV0, |
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}, { |
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.slot = 1, |
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.pin = 1, |
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.irq = AR71XX_PCI_IRQ_DEV1, |
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} |
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}; |
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static int ap94_pci_plat_dev_init(struct pci_dev *dev) |
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{ |
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switch(PCI_SLOT(dev->devfn)) { |
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case 17: |
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dev->dev.platform_data = &ap94_wmac0_data; |
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break; |
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case 18: |
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dev->dev.platform_data = &ap94_wmac1_data; |
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break; |
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} |
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return 0; |
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} |
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static void ap94_pci_fixup(struct pci_dev *dev) |
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{ |
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void __iomem *mem; |
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u16 *cal_data; |
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u16 cmd; |
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u32 bar0; |
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u32 val; |
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if (!ap94_pci_fixup_enabled) |
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return; |
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switch (PCI_SLOT(dev->devfn)) { |
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case 17: |
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cal_data = ap94_wmac0_data.eeprom_data; |
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break; |
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case 18: |
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cal_data = ap94_wmac1_data.eeprom_data; |
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break; |
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default: |
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return; |
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} |
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if (*cal_data != 0xa55a) { |
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printk(KERN_ERR "PCI: no calibration data found for %s\n", |
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pci_name(dev)); |
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return; |
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} |
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mem = ioremap(AR71XX_PCI_MEM_BASE, 0x10000); |
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if (!mem) { |
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printk(KERN_ERR "PCI: ioremap error for device %s\n", |
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pci_name(dev)); |
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return; |
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} |
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printk(KERN_INFO "PCI: fixup device %s\n", pci_name(dev)); |
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pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar0); |
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/* Setup the PCI device to allow access to the internal registers */ |
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pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, AR71XX_PCI_MEM_BASE); |
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pci_read_config_word(dev, PCI_COMMAND, &cmd); |
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cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; |
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pci_write_config_word(dev, PCI_COMMAND, cmd); |
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/* set pointer to first reg address */ |
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cal_data += 3; |
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while (*cal_data != 0xffff) { |
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u32 reg; |
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reg = *cal_data++; |
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val = *cal_data++; |
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val |= (*cal_data++) << 16; |
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__raw_writel(val, mem + reg); |
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udelay(100); |
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} |
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pci_read_config_dword(dev, PCI_VENDOR_ID, &val); |
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dev->vendor = val & 0xffff; |
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dev->device = (val >> 16) & 0xffff; |
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pci_read_config_dword(dev, PCI_CLASS_REVISION, &val); |
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dev->revision = val & 0xff; |
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dev->class = val >> 8; /* upper 3 bytes */ |
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pci_read_config_word(dev, PCI_COMMAND, &cmd); |
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cmd &= ~(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY); |
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pci_write_config_word(dev, PCI_COMMAND, cmd); |
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pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, bar0); |
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iounmap(mem); |
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} |
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DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATHEROS, PCI_ANY_ID, ap94_pci_fixup); |
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void __init ap94_pci_init(u8 *cal_data0, u8 *mac_addr0, |
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u8 *cal_data1, u8 *mac_addr1) |
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{ |
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if (cal_data0) |
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memcpy(ap94_wmac0_data.eeprom_data, cal_data0, |
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sizeof(ap94_wmac0_data.eeprom_data)); |
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if (cal_data1) |
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memcpy(ap94_wmac1_data.eeprom_data, cal_data1, |
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sizeof(ap94_wmac1_data.eeprom_data)); |
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if (mac_addr0) { |
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memcpy(ap94_wmac0_mac, mac_addr0, sizeof(ap94_wmac0_mac)); |
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ap94_wmac0_data.macaddr = ap94_wmac0_mac; |
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} |
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if (mac_addr1) { |
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memcpy(ap94_wmac1_mac, mac_addr1, sizeof(ap94_wmac1_mac)); |
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ap94_wmac1_data.macaddr = ap94_wmac1_mac; |
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} |
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ar71xx_pci_plat_dev_init = ap94_pci_plat_dev_init; |
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ar71xx_pci_init(ARRAY_SIZE(ap94_pci_irqs), ap94_pci_irqs); |
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ap94_pci_fixup_enabled = 1; |
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} |
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@ -0,0 +1,27 @@ |
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/*
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* Atheros AP94 reference board PCI initialization |
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* |
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* Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org> |
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* |
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* This program is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 as published |
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* by the Free Software Foundation. |
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*/ |
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#ifndef _AR71XX_DEV_AP94_PCI_H |
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#define _AR71XX_DEV_AP94_PCI_H |
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#include <linux/spi/flash.h> |
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#if defined(CONFIG_AR71XX_DEV_AP94_PCI) |
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void ap94_pci_init(u8 *cal_data0, u8 *mac_addr0, |
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u8 *cal_data1, u8 *mac_addr1) __init; |
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#else |
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static inline void ap94_pci_init(u8 *cal_data0, u8 *mac_addr0, |
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u8 *cal_data1, u8 *mac_addr1) |
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{ |
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} |
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#endif |
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#endif /* _AR71XX_DEV_AP94_PCI_H */ |
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