diff -Nur linux-orig/arch/mips/au1000/mtx-2/board_setup.c linux-mtx-2-2.4.27-idsel-fix/linux/arch/mips/au1000/mtx-2/board_setup.c --- linux-orig/arch/mips/au1000/mtx-2/board_setup.c 2006-05-26 12:39:00.000000000 +0200 +++ linux/arch/mips/au1000/mtx-2/board_setup.c 2006-06-02 17:50:09.000000000 +0200 @@ -46,8 +46,11 @@ #include <asm/pgtable.h> #include <asm/au1000.h> +static int mtx2_pci_idsel(unsigned int devsel, int assert); +extern int (*board_pci_idsel)(unsigned int devsel, int assert); + extern struct rtc_ops no_rtc_ops; void board_reset (void) { /* Hit BCSR.SYSTEM_CONTROL[SW_RST] */ @@ -115,5 +118,31 @@ au_writel( au_readl(GPIO2_DIR) | 0x1800, GPIO2_DIR ); au_writel( 0x18000800, GPIO2_OUTPUT ); #endif + + + board_pci_idsel = mtx2_pci_idsel; + printk("4G Systems MTX-2 Board\n"); } + + +static int mtx2_pci_idsel(unsigned int devsel, int assert) +{ +#define MTX_IDSEL_ONLY_0_AND_3 0 +#if MTX_IDSEL_ONLY_0_AND_3 + if (devsel != 0 && devsel != 3) { + printk("*** not 0 or 3\n"); + return 0; + } +#endif + + if (assert && devsel != 0) { + // supress signal to cardbus + au_writel( (1<<(16+5)) | (0<<5), GPIO2_OUTPUT); // set EXT_IO3 OFF + } + else { + au_writel( (1<<(16+5)) | (1<<5), GPIO2_OUTPUT); // set EXT_IO3 ON + } + au_sync_udelay(1); + return 1; +}