diff options
Diffstat (limited to 'board/jse/jse.c')
| -rw-r--r-- | board/jse/jse.c | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/board/jse/jse.c b/board/jse/jse.c deleted file mode 100644 index a0913c3..0000000 --- a/board/jse/jse.c +++ /dev/null @@ -1,147 +0,0 @@ -/* - * Copyright (c) 2004 Picture Elements, Inc. - * Stephen Williams (steve@icarus.com) - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -# include <common.h> -# include <asm/ppc4xx.h> -# include <asm/processor.h> -# include <asm/io.h> -# include "jse_priv.h" - -/* - * This function is run very early, out of flash, and before devices are - * initialized. It is called by arch/powerpc/lib/board.c:board_init_f by virtue - * of being in the init_sequence array. - * - * The SDRAM has been initialized already -- start.S:start called - * init.S:init_sdram early on -- but it is not yet being used for - * anything, not even stack. So be careful. - */ -int board_early_init_f (void) -{ - /*-------------------------------------------------------------------------+ - | Interrupt controller setup for the JSE board. - | Note: IRQ 0-15 405GP internally generated; active high; level sensitive - | IRQ 16 405GP internally generated; active low; level sensitive - | IRQ 17-24 RESERVED/UNUSED - | IRQ 25 (EXT IRQ 0) PCI SLOT 0; active low; level sensitive - | IRQ 26 (EXT IRQ 1) PCI SLOT 1; active low; level sensitive - | IRQ 27 (EXT IRQ 2) JP2C CHIP ; active low; level sensitive - | IRQ 28 (EXT IRQ 3) PCI bridge; active low; level sensitive - | IRQ 29 (EXT IRQ 4) SystemACE IRQ; active high - | IRQ 30 (EXT IRQ 5) SystemACE BRdy (unused) - | IRQ 31 (EXT IRQ 6) (unused) - +-------------------------------------------------------------------------*/ - mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */ - mtdcr (UIC0ER, 0x00000000); /* disable all ints */ - mtdcr (UIC0CR, 0x00000000); /* set all to be non-critical */ - mtdcr (UIC0PR, 0xFFFFFF87); /* set int polarities */ - mtdcr (UIC0TR, 0x10000000); /* set int trigger levels */ - mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */ - - /* Configure the interface to the SystemACE MCU port. - The SystemACE is fast, but there is no reason to have - excessivly tight timings. So the settings are slightly - generous. */ - - /* EBC0_B1AP: BME=1, TWT=2, CSN=0, OEN=1, - WBN=0, WBF=1, TH=0, RE=0, SOR=0, BEM=0, PEN=0 */ - mtdcr (EBC0_CFGADDR, PB1AP); - mtdcr (EBC0_CFGDATA, 0x01011000); - - /* EBC0_B1CR: BAS=x, BS=0(1MB), BU=3(R/W), BW=0(8bits) */ - mtdcr (EBC0_CFGADDR, PB1CR); - mtdcr (EBC0_CFGDATA, CONFIG_SYS_SYSTEMACE_BASE | 0x00018000); - - /* Enable the /PerWE output as /PerWE, instead of /PCIINT. */ - /* CPC0_CR1 |= PCIPW */ - mtdcr (0xb2, mfdcr (0xb2) | 0x00004000); - - return 0; -} - -#ifdef CONFIG_BOARD_PRE_INIT -int board_pre_init (void) -{ - return board_early_init_f (); -} - -#endif - -/* - * This function is also called by arch/powerpc/lib/board.c:board_init_f (it is - * also in the init_sequence array) but later. Many more things are - * configured, but we are still running from flash. - */ -int checkboard (void) -{ - unsigned vers, status; - - /* check that the SystemACE chip is alive. */ - printf ("ACE: "); - vers = readw (CONFIG_SYS_SYSTEMACE_BASE + 0x16); - printf ("SystemACE %u.%u (build %u)", - (vers >> 12) & 0x0f, (vers >> 8) & 0x0f, vers & 0xff); - - status = readl (CONFIG_SYS_SYSTEMACE_BASE + 0x04); -#ifdef DEBUG - printf (" STATUS=0x%08x", status); -#endif - /* If the flash card is present and there is an initial error, - then force a restart of the program. */ - if (status & 0x00000010) { - printf (" CFDETECT"); - - if (status & 0x04) { - /* CONTROLREG = CFGPROG */ - writew (0x1000, CONFIG_SYS_SYSTEMACE_BASE + 0x18); - udelay (500); - /* CONTROLREG = CFGRESET */ - writew (0x0080, CONFIG_SYS_SYSTEMACE_BASE + 0x18); - udelay (500); - writew (0x0000, CONFIG_SYS_SYSTEMACE_BASE + 0x18); - /* CONTROLREG = CFGSTART */ - writew (0x0020, CONFIG_SYS_SYSTEMACE_BASE + 0x18); - - status = readl (CONFIG_SYS_SYSTEMACE_BASE + 0x04); - } - } - - /* Wait for the SystemACE to program its chain of devices. */ - while ((status & 0x84) == 0x00) { - udelay (500); - status = readl (CONFIG_SYS_SYSTEMACE_BASE + 0x04); - } - - if (status & 0x04) - printf (" CFG-ERROR"); - if (status & 0x80) - printf (" CFGDONE"); - - printf ("\n"); - - /* Force /RTS to active. The board it not wired quite - correctly to use cts/rtc flow control, so just force the - /RST active and forget about it. */ - writeb (readb (0xef600404) | 0x03, 0xef600404); - - printf ("JSE: ready\n"); - - return 0; -} - -/* **** No more functions called by board_init_f. **** */ - -/* - * This function is called by arch/powerpc/lib/board.c:board_init_r. At this - * point, basic setup is done, U-Boot has been moved into SDRAM and - * PCI has been set up. From here we done late setup. - */ -int misc_init_r (void) -{ - host_bridge_init (); - return 0; -} |