diff options
Diffstat (limited to 'arch/powerpc/lib/ide.c')
| -rw-r--r-- | arch/powerpc/lib/ide.c | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/arch/powerpc/lib/ide.c b/arch/powerpc/lib/ide.c deleted file mode 100644 index b4ead726a6e..00000000000 --- a/arch/powerpc/lib/ide.c +++ /dev/null @@ -1,184 +0,0 @@ -/* - * (C) Copyright 2000-2011 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -/* Code taken from cmd_ide.c */ -#include <common.h> -#include <ata.h> -#include "ide.h" - -#ifdef CONFIG_IDE_8xx_DIRECT -#include <mpc8xx.h> -#include <pcmcia.h> -DECLARE_GLOBAL_DATA_PTR; - -/* Timings for IDE Interface - * - * SETUP / LENGTH / HOLD - cycles valid for 50 MHz clk - * 70 165 30 PIO-Mode 0, [ns] - * 4 9 2 [Cycles] - * 50 125 20 PIO-Mode 1, [ns] - * 3 7 2 [Cycles] - * 30 100 15 PIO-Mode 2, [ns] - * 2 6 1 [Cycles] - * 30 80 10 PIO-Mode 3, [ns] - * 2 5 1 [Cycles] - * 25 70 10 PIO-Mode 4, [ns] - * 2 4 1 [Cycles] - */ - -static const pio_config_t pio_config_ns[IDE_MAX_PIO_MODE+1] = { - /* Setup Length Hold */ - { 70, 165, 30 }, /* PIO-Mode 0, [ns] */ - { 50, 125, 20 }, /* PIO-Mode 1, [ns] */ - { 30, 101, 15 }, /* PIO-Mode 2, [ns] */ - { 30, 80, 10 }, /* PIO-Mode 3, [ns] */ - { 25, 70, 10 }, /* PIO-Mode 4, [ns] */ -}; - -static pio_config_t pio_config_clk[IDE_MAX_PIO_MODE+1]; - -#ifndef CONFIG_SYS_PIO_MODE -#define CONFIG_SYS_PIO_MODE 0 /* use a relaxed default */ -#endif -static int pio_mode = CONFIG_SYS_PIO_MODE; - -/* Make clock cycles and always round up */ - -#define PCMCIA_MK_CLKS(t, T) (((t) * (T) + 999U) / 1000U) - -static void set_pcmcia_timing(int pmode) -{ - volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; - volatile pcmconf8xx_t *pcmp = &(immr->im_pcmcia); - ulong timings; - - debug("Set timing for PIO Mode %d\n", pmode); - - timings = PCMCIA_SHT(pio_config_clk[pmode].t_hold) - | PCMCIA_SST(pio_config_clk[pmode].t_setup) - | PCMCIA_SL(pio_config_clk[pmode].t_length); - - /* - * IDE 0 - */ - pcmp->pcmc_pbr0 = CONFIG_SYS_PCMCIA_PBR0; -#if (CONFIG_SYS_PCMCIA_POR0 != 0) - pcmp->pcmc_por0 = CONFIG_SYS_PCMCIA_POR0 | timings; -#else - pcmp->pcmc_por0 = CONFIG_SYS_PCMCIA_POR0; -#endif - debug("PBR0: %08x POR0: %08x\n", pcmp->pcmc_pbr0, pcmp->pcmc_por0); - - pcmp->pcmc_pbr1 = CONFIG_SYS_PCMCIA_PBR1; -#if (CONFIG_SYS_PCMCIA_POR1 != 0) - pcmp->pcmc_por1 = CONFIG_SYS_PCMCIA_POR1 | timings; -#else - pcmp->pcmc_por1 = CONFIG_SYS_PCMCIA_POR1; -#endif - debug("PBR1: %08x POR1: %08x\n", pcmp->pcmc_pbr1, pcmp->pcmc_por1); - - pcmp->pcmc_pbr2 = CONFIG_SYS_PCMCIA_PBR2; -#if (CONFIG_SYS_PCMCIA_POR2 != 0) - pcmp->pcmc_por2 = CONFIG_SYS_PCMCIA_POR2 | timings; -#else - pcmp->pcmc_por2 = CONFIG_SYS_PCMCIA_POR2; -#endif - debug("PBR2: %08x POR2: %08x\n", pcmp->pcmc_pbr2, pcmp->pcmc_por2); - - pcmp->pcmc_pbr3 = CONFIG_SYS_PCMCIA_PBR3; -#if (CONFIG_SYS_PCMCIA_POR3 != 0) - pcmp->pcmc_por3 = CONFIG_SYS_PCMCIA_POR3 | timings; -#else - pcmp->pcmc_por3 = CONFIG_SYS_PCMCIA_POR3; -#endif - debug("PBR3: %08x POR3: %08x\n", pcmp->pcmc_pbr3, pcmp->pcmc_por3); - - /* - * IDE 1 - */ - pcmp->pcmc_pbr4 = CONFIG_SYS_PCMCIA_PBR4; -#if (CONFIG_SYS_PCMCIA_POR4 != 0) - pcmp->pcmc_por4 = CONFIG_SYS_PCMCIA_POR4 | timings; -#else - pcmp->pcmc_por4 = CONFIG_SYS_PCMCIA_POR4; -#endif - debug("PBR4: %08x POR4: %08x\n", pcmp->pcmc_pbr4, pcmp->pcmc_por4); - - pcmp->pcmc_pbr5 = CONFIG_SYS_PCMCIA_PBR5; -#if (CONFIG_SYS_PCMCIA_POR5 != 0) - pcmp->pcmc_por5 = CONFIG_SYS_PCMCIA_POR5 | timings; -#else - pcmp->pcmc_por5 = CONFIG_SYS_PCMCIA_POR5; -#endif - debug("PBR5: %08x POR5: %08x\n", pcmp->pcmc_pbr5, pcmp->pcmc_por5); - - pcmp->pcmc_pbr6 = CONFIG_SYS_PCMCIA_PBR6; -#if (CONFIG_SYS_PCMCIA_POR6 != 0) - pcmp->pcmc_por6 = CONFIG_SYS_PCMCIA_POR6 | timings; -#else - pcmp->pcmc_por6 = CONFIG_SYS_PCMCIA_POR6; -#endif - debug("PBR6: %08x POR6: %08x\n", pcmp->pcmc_pbr6, pcmp->pcmc_por6); - - pcmp->pcmc_pbr7 = CONFIG_SYS_PCMCIA_PBR7; -#if (CONFIG_SYS_PCMCIA_POR7 != 0) - pcmp->pcmc_por7 = CONFIG_SYS_PCMCIA_POR7 | timings; -#else - pcmp->pcmc_por7 = CONFIG_SYS_PCMCIA_POR7; -#endif - debug("PBR7: %08x POR7: %08x\n", pcmp->pcmc_pbr7, pcmp->pcmc_por7); - -} - -int ide_preinit(void) -{ - int i; - /* Initialize PIO timing tables */ - for (i = 0; i <= IDE_MAX_PIO_MODE; ++i) { - pio_config_clk[i].t_setup = - PCMCIA_MK_CLKS(pio_config_ns[i].t_setup, gd->bus_clk); - pio_config_clk[i].t_length = - PCMCIA_MK_CLKS(pio_config_ns[i].t_length, gd->bus_clk); - pio_config_clk[i].t_hold = - PCMCIA_MK_CLKS(pio_config_ns[i].t_hold, gd->bus_clk); - debug("PIO Mode %d: setup=%2d ns/%d clk" " len=%3d ns/%d clk" - " hold=%2d ns/%d clk\n", i, pio_config_ns[i].t_setup, - pio_config_clk[i].t_setup, pio_config_ns[i].t_length, - pio_config_clk[i].t_length, pio_config_ns[i].t_hold, - pio_config_clk[i].t_hold); - } - - return 0; -} - -int ide_init_postreset(void) -{ - volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; - volatile pcmconf8xx_t *pcmp = &(immr->im_pcmcia); - - /* PCMCIA / IDE initialization for common mem space */ - pcmp->pcmc_pgcrb = 0; - - /* start in PIO mode 0 - most relaxed timings */ - pio_mode = 0; - set_pcmcia_timing(pio_mode); - return 0; -} -#endif /* CONFIG_IDE_8xx_DIRECT */ - -#ifdef CONFIG_IDE_8xx_PCCARD -int ide_preinit(void) -{ - ide_devices_found = 0; - /* initialize the PCMCIA IDE adapter card */ - pcmcia_on(); - if (!ide_devices_found) - return 1; - udelay(1000000);/* 1 s */ - return 0; -} -#endif |