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Diffstat (limited to 'arch/sh/boards/harp/setup.c')
-rw-r--r-- | arch/sh/boards/harp/setup.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/arch/sh/boards/harp/setup.c b/arch/sh/boards/harp/setup.c new file mode 100644 index 000000000000..05b01b8f40aa --- /dev/null +++ b/arch/sh/boards/harp/setup.c @@ -0,0 +1,91 @@ +/* + * arch/sh/stboard/setup.c + * + * Copyright (C) 2001 Stuart Menefy (stuart.menefy@st.com) + * + * May be copied or modified under the terms of the GNU General Public + * License. See linux/COPYING for more information. + * + * STMicroelectronics ST40STB1 HARP and compatible support. + */ + +#include <linux/config.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/io.h> +#include <asm/harp/harp.h> + +const char *get_system_type(void) +{ + return "STB1 Harp"; +} + +/* + * Initialize the board + */ +int __init platform_setup(void) +{ +#ifdef CONFIG_SH_STB1_HARP + unsigned long ic8_version, ic36_version; + + ic8_version = ctrl_inl(EPLD_REVID2); + ic36_version = ctrl_inl(EPLD_REVID1); + + printk("STMicroelectronics STB1 HARP initialisaton\n"); + printk("EPLD versions: IC8: %d.%02d, IC36: %d.%02d\n", + (ic8_version >> 4) & 0xf, ic8_version & 0xf, + (ic36_version >> 4) & 0xf, ic36_version & 0xf); +#elif defined(CONFIG_SH_STB1_OVERDRIVE) + unsigned long version; + + version = ctrl_inl(EPLD_REVID); + + printk("STMicroelectronics STB1 Overdrive initialisaton\n"); + printk("EPLD version: %d.%02d\n", + (version >> 4) & 0xf, version & 0xf); +#else +#error Undefined machine +#endif + + /* Currently all STB1 chips have problems with the sleep instruction, + * so disable it here. + */ + disable_hlt(); + + return 0; +} + +/* + * pcibios_map_platform_irq + * + * This is board specific and returns the IRQ for a given PCI device. + * It is used by the PCI code (arch/sh/kernel/st40_pci*) + * + */ + +#define HARP_PCI_IRQ 1 +#define HARP_BRIDGE_IRQ 2 +#define OVERDRIVE_SLOT0_IRQ 0 + + +int __init pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin) +{ + switch (slot) { +#ifdef CONFIG_SH_STB1_HARP + case 2: /*This is the PCI slot on the */ + return HARP_PCI_IRQ; + case 1: /* this is the bridge */ + return HARP_BRIDGE_IRQ; +#elif defined(CONFIG_SH_STB1_OVERDRIVE) + case 1: + case 2: + case 3: + return slot - 1; +#else +#error Unknown board +#endif + default: + return -1; + } +} + |