| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * arch/sh/stboard/setup.c |
| 3 | * |
| 4 | * Copyright (C) 2001 Stuart Menefy (stuart.menefy@st.com) |
| 5 | * |
| 6 | * May be copied or modified under the terms of the GNU General Public |
| 7 | * License. See linux/COPYING for more information. |
| 8 | * |
| 9 | * STMicroelectronics ST40STB1 HARP and compatible support. |
| 10 | */ |
| 11 | |
| 12 | #include <linux/config.h> |
| 13 | #include <linux/kernel.h> |
| 14 | #include <linux/init.h> |
| 15 | #include <asm/io.h> |
| 16 | #include <asm/harp/harp.h> |
| 17 | |
| 18 | const char *get_system_type(void) |
| 19 | { |
| 20 | return "STB1 Harp"; |
| 21 | } |
| 22 | |
| 23 | /* |
| 24 | * Initialize the board |
| 25 | */ |
| 26 | int __init platform_setup(void) |
| 27 | { |
| 28 | #ifdef CONFIG_SH_STB1_HARP |
| 29 | unsigned long ic8_version, ic36_version; |
| 30 | |
| 31 | ic8_version = ctrl_inl(EPLD_REVID2); |
| 32 | ic36_version = ctrl_inl(EPLD_REVID1); |
| 33 | |
| 34 | printk("STMicroelectronics STB1 HARP initialisaton\n"); |
| 35 | printk("EPLD versions: IC8: %d.%02d, IC36: %d.%02d\n", |
| 36 | (ic8_version >> 4) & 0xf, ic8_version & 0xf, |
| 37 | (ic36_version >> 4) & 0xf, ic36_version & 0xf); |
| 38 | #elif defined(CONFIG_SH_STB1_OVERDRIVE) |
| 39 | unsigned long version; |
| 40 | |
| 41 | version = ctrl_inl(EPLD_REVID); |
| 42 | |
| 43 | printk("STMicroelectronics STB1 Overdrive initialisaton\n"); |
| 44 | printk("EPLD version: %d.%02d\n", |
| 45 | (version >> 4) & 0xf, version & 0xf); |
| 46 | #else |
| 47 | #error Undefined machine |
| 48 | #endif |
| 49 | |
| 50 | /* Currently all STB1 chips have problems with the sleep instruction, |
| 51 | * so disable it here. |
| 52 | */ |
| 53 | disable_hlt(); |
| 54 | |
| 55 | return 0; |
| 56 | } |
| 57 | |
| 58 | /* |
| 59 | * pcibios_map_platform_irq |
| 60 | * |
| 61 | * This is board specific and returns the IRQ for a given PCI device. |
| 62 | * It is used by the PCI code (arch/sh/kernel/st40_pci*) |
| 63 | * |
| 64 | */ |
| 65 | |
| 66 | #define HARP_PCI_IRQ 1 |
| 67 | #define HARP_BRIDGE_IRQ 2 |
| 68 | #define OVERDRIVE_SLOT0_IRQ 0 |
| 69 | |
| 70 | |
| 71 | int __init pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin) |
| 72 | { |
| 73 | switch (slot) { |
| 74 | #ifdef CONFIG_SH_STB1_HARP |
| 75 | case 2: /*This is the PCI slot on the */ |
| 76 | return HARP_PCI_IRQ; |
| 77 | case 1: /* this is the bridge */ |
| 78 | return HARP_BRIDGE_IRQ; |
| 79 | #elif defined(CONFIG_SH_STB1_OVERDRIVE) |
| 80 | case 1: |
| 81 | case 2: |
| 82 | case 3: |
| 83 | return slot - 1; |
| 84 | #else |
| 85 | #error Unknown board |
| 86 | #endif |
| 87 | default: |
| 88 | return -1; |
| 89 | } |
| 90 | } |
| 91 | |