diff options
Diffstat (limited to 'arch/ppc/cpu/mpc512x/ide.c')
-rw-r--r-- | arch/ppc/cpu/mpc512x/ide.c | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/arch/ppc/cpu/mpc512x/ide.c b/arch/ppc/cpu/mpc512x/ide.c deleted file mode 100644 index dd6b2f4..0000000 --- a/arch/ppc/cpu/mpc512x/ide.c +++ /dev/null @@ -1,128 +0,0 @@ -/* - * (C) Copyright 2007-2009 DENX Software Engineering - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - * - */ - -#include <common.h> -#include <command.h> -#include <asm/io.h> -#include <asm/processor.h> - -DECLARE_GLOBAL_DATA_PTR; - -#if defined(CONFIG_IDE_RESET) - -void ide_set_reset (int idereset) -{ - volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; - debug ("ide_set_reset(%d)\n", idereset); - - if (idereset) { - out_be32(&im->pata.pata_ata_control, 0); - } else { - out_be32(&im->pata.pata_ata_control, FSL_ATA_CTRL_ATA_RST_B); - } - udelay(100); -} - -void init_ide_reset (void) -{ - debug ("init_ide_reset\n"); - - /* - * Clear the reset bit to reset the interface - * cf. RefMan MPC5121EE: 28.4.1 Resetting the ATA Bus - */ - ide_set_reset(1); - - /* Assert the reset bit to enable the interface */ - ide_set_reset(0); - -} - -#define CALC_TIMING(t) (t + period - 1) / period - -int ide_preinit (void) -{ - volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; - long t; - const struct { - short t0; - short t1; - short t2_8; - short t2_16; - short t2i; - short t4; - short t9; - short tA; - } pio_specs = { - .t0 = 600, - .t1 = 70, - .t2_8 = 290, - .t2_16 = 165, - .t2i = 0, - .t4 = 30, - .t9 = 20, - .tA = 50, - }; - union { - u32 config; - struct { - u8 field1; - u8 field2; - u8 field3; - u8 field4; - }bytes; - } cfg; - - debug ("IDE preinit using PATA peripheral at IMMR-ADDR %08x\n", - (u32)&im->pata); - - /* Set the reset bit to 1 to enable the interface */ - ide_set_reset(0); - - /* Init timings : we use PIO mode 0 timings */ - t = 1000000000 / gd->ips_clk; /* period in ns */ - cfg.bytes.field1 = 3; - cfg.bytes.field2 = 3; - cfg.bytes.field3 = (pio_specs.t1 + t) / t; - cfg.bytes.field4 = (pio_specs.t2_8 + t) / t; - - out_be32(&im->pata.pata_time1, cfg.config); - - cfg.bytes.field1 = (pio_specs.t2_8 + t) / t; - cfg.bytes.field2 = (pio_specs.tA + t) / t + 2; - cfg.bytes.field3 = 1; - cfg.bytes.field4 = (pio_specs.t4 + t) / t; - - out_be32(&im->pata.pata_time2, cfg.config); - - cfg.config = in_be32(&im->pata.pata_time3); - cfg.bytes.field1 = (pio_specs.t9 + t) / t; - - out_be32(&im->pata.pata_time3, cfg.config); - - debug ("PATA preinit complete.\n"); - - return 0; -} - -#endif /* defined(CONFIG_IDE_RESET) */ |