X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=blobdiff_plain;f=board%2Famcc%2Fluan%2Fluan.c;h=4e12e9af12a0d98af88e142c76e176a43e7bad12;hp=7d02d904e09eac8bf14c4ca5aef2e9b6a3fc1a4e;hb=9d62f20d0861ef87460d073dc189c851715b46ae;hpb=92afd368bba7d98b2b7bfb51082c3639bb2119b3 diff --git a/board/amcc/luan/luan.c b/board/amcc/luan/luan.c index 7d02d904e0..4e12e9af12 100644 --- a/board/amcc/luan/luan.c +++ b/board/amcc/luan/luan.c @@ -42,34 +42,34 @@ int board_early_init_f(void) { u32 mfr; - mtebc( pb0ap, 0x03800000 ); /* set chip selects */ - mtebc( pb0cr, 0xffc58000 ); /* ebc0_b0cr, 4MB at 0xffc00000 CS0 */ - mtebc( pb1ap, 0x03800000 ); - mtebc( pb1cr, 0xff018000 ); /* ebc0_b1cr, 1MB at 0xff000000 CS1 */ - mtebc( pb2ap, 0x03800000 ); - mtebc( pb2cr, 0xff838000 ); /* ebc0_b2cr, 2MB at 0xff800000 CS2 */ - - mtdcr( uic1sr, 0xffffffff ); /* Clear all interrupts */ - mtdcr( uic1er, 0x00000000 ); /* disable all interrupts */ - mtdcr( uic1cr, 0x00000000 ); /* Set Critical / Non Critical interrupts */ - mtdcr( uic1pr, 0x7fff83ff ); /* Set Interrupt Polarities */ - mtdcr( uic1tr, 0x001f8000 ); /* Set Interrupt Trigger Levels */ - mtdcr( uic1vr, 0x00000001 ); /* Set Vect base=0,INT31 Highest priority */ - mtdcr( uic1sr, 0x00000000 ); /* clear all interrupts */ - mtdcr( uic1sr, 0xffffffff ); - - mtdcr( uic0sr, 0xffffffff ); /* Clear all interrupts */ - mtdcr( uic0er, 0x00000000 ); /* disable all interrupts excepted cascade */ - mtdcr( uic0cr, 0x00000001 ); /* Set Critical / Non Critical interrupts */ - mtdcr( uic0pr, 0xffffffff ); /* Set Interrupt Polarities */ - mtdcr( uic0tr, 0x01000004 ); /* Set Interrupt Trigger Levels */ - mtdcr( uic0vr, 0x00000001 ); /* Set Vect base=0,INT31 Highest priority */ - mtdcr( uic0sr, 0x00000000 ); /* clear all interrupts */ - mtdcr( uic0sr, 0xffffffff ); - - mfsdr(sdr_mfr, mfr); + mtebc( PB0AP, 0x03800000 ); /* set chip selects */ + mtebc( PB0CR, 0xffc58000 ); /* ebc0_b0cr, 4MB at 0xffc00000 CS0 */ + mtebc( PB1AP, 0x03800000 ); + mtebc( PB1CR, 0xff018000 ); /* ebc0_b1cr, 1MB at 0xff000000 CS1 */ + mtebc( PB2AP, 0x03800000 ); + mtebc( PB2CR, 0xff838000 ); /* ebc0_b2cr, 2MB at 0xff800000 CS2 */ + + mtdcr( UIC1SR, 0xffffffff ); /* Clear all interrupts */ + mtdcr( UIC1ER, 0x00000000 ); /* disable all interrupts */ + mtdcr( UIC1CR, 0x00000000 ); /* Set Critical / Non Critical interrupts */ + mtdcr( UIC1PR, 0x7fff83ff ); /* Set Interrupt Polarities */ + mtdcr( UIC1TR, 0x001f8000 ); /* Set Interrupt Trigger Levels */ + mtdcr( UIC1VR, 0x00000001 ); /* Set Vect base=0,INT31 Highest priority */ + mtdcr( UIC1SR, 0x00000000 ); /* clear all interrupts */ + mtdcr( UIC1SR, 0xffffffff ); + + mtdcr( UIC0SR, 0xffffffff ); /* Clear all interrupts */ + mtdcr( UIC0ER, 0x00000000 ); /* disable all interrupts excepted cascade */ + mtdcr( UIC0CR, 0x00000001 ); /* Set Critical / Non Critical interrupts */ + mtdcr( UIC0PR, 0xffffffff ); /* Set Interrupt Polarities */ + mtdcr( UIC0TR, 0x01000004 ); /* Set Interrupt Trigger Levels */ + mtdcr( UIC0VR, 0x00000001 ); /* Set Vect base=0,INT31 Highest priority */ + mtdcr( UIC0SR, 0x00000000 ); /* clear all interrupts */ + mtdcr( UIC0SR, 0xffffffff ); + + mfsdr(SDR0_MFR, mfr); mfr |= SDR0_MFR_FIXD; /* Workaround for PCI/DMA */ - mtsdr(sdr_mfr, mfr); + mtsdr(SDR0_MFR, mfr); return 0; } @@ -119,109 +119,13 @@ int checkboard(void) } /* - * Override the default functions in cpu/ppc4xx/44x_spd_ddr2.c with + * Override the default functions in arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c with * board specific values. */ u32 ddr_clktr(u32 default_val) { return (SDRAM_CLKTR_CLKP_180_DEG_ADV); } -/************************************************************************* - * pci_pre_init - * - * This routine is called just prior to registering the hose and gives - * the board the opportunity to check things. Returning a value of zero - * indicates that things are bad & PCI initialization should be aborted. - * - * Different boards may wish to customize the pci controller structure - * (add regions, override default access routines, etc) or perform - * certain pre-initialization actions. - * - ************************************************************************/ -#if defined(CONFIG_PCI) -int pci_pre_init( struct pci_controller *hose ) -{ - unsigned long strap; - - /*--------------------------------------------------------------------------+ - * The luan board is always configured as the host & requires the - * PCI arbiter to be enabled. - *--------------------------------------------------------------------------*/ - mfsdr(sdr_sdstp1, strap); - if( (strap & SDR0_SDSTP1_PAE_MASK) == 0 ) { - printf("PCI: SDR0_STRP1[%08lX] - PCI Arbiter disabled.\n",strap); - - return 0; - } - - return 1; -} -#endif /* defined(CONFIG_PCI) */ - - -/************************************************************************* - * pci_target_init - * - * The bootstrap configuration provides default settings for the pci - * inbound map (PIM). But the bootstrap config choices are limited and - * may not be sufficient for a given board. - * - ************************************************************************/ -#if defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT) -void pci_target_init(struct pci_controller *hose) -{ - /*--------------------------------------------------------------------------+ - * Disable everything - *--------------------------------------------------------------------------*/ - out32r( PCIX0_PIM0SA, 0 ); /* disable */ - out32r( PCIX0_PIM1SA, 0 ); /* disable */ - out32r( PCIX0_PIM2SA, 0 ); /* disable */ - out32r( PCIX0_EROMBA, 0 ); /* disable expansion rom */ - - /*--------------------------------------------------------------------------+ - * Map all of SDRAM to PCI address 0x0000_0000. Note that the 440 strapping - * options to not support sizes such as 128/256 MB. - *--------------------------------------------------------------------------*/ - out32r( PCIX0_PIM0LAL, CONFIG_SYS_SDRAM_BASE ); - out32r( PCIX0_PIM0LAH, 0 ); - out32r( PCIX0_PIM0SA, ~(gd->ram_size - 1) | 1 ); - - out32r( PCIX0_BAR0, 0 ); - - /*--------------------------------------------------------------------------+ - * Program the board's subsystem id/vendor id - *--------------------------------------------------------------------------*/ - out16r( PCIX0_SBSYSVID, CONFIG_SYS_PCI_SUBSYS_VENDORID ); - out16r( PCIX0_SBSYSID, CONFIG_SYS_PCI_SUBSYS_DEVICEID ); - - out16r( PCIX0_CMD, in16r(PCIX0_CMD) | PCI_COMMAND_MEMORY ); -} -#endif /* defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT) */ - - -/************************************************************************* - * is_pci_host - * - * This routine is called to determine if a pci scan should be - * performed. With various hardware environments (especially cPCI and - * PPMC) it's insufficient to depend on the state of the arbiter enable - * bit in the strap register, or generic host/adapter assumptions. - * - * Rather than hard-code a bad assumption in the general 440 code, the - * 440 pci code requires the board to decide at runtime. - * - * Return 0 for adapter mode, non-zero for host (monarch) mode. - * - * - ************************************************************************/ -#if defined(CONFIG_PCI) -int is_pci_host(struct pci_controller *hose) -{ - return 1; -} -#endif /* defined(CONFIG_PCI) */ - - /************************************************************************* * hw_watchdog_reset *