Eric Lee / linux-smarc-t335x-v3.2

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Commit 8c2b58ce716112cbba167b0abcb9558c118b8c9a

Authored by Greg Ungerer
Committed by Linus Torvalds
1 parent 55f37debf7
Exists in master and in 4 other branches v3.2_AM335xPSP_04.06.00.11, v3.2_NEWT335xPSP_04.06.00.11, v3.2_SBC_SMARTMEN, v3.2_SMARCT335xPSP_04.06.00.11

[PATCH] m68knommu: create common config code for all 68VZ328 platforms 

Create common 68VZ328 config code. It is essentially the same for
all boards that use this, so no point having a version of it for
each.

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Showing 1 changed file with 210 additions and 0 deletions Side-by-side Diff

arch/m68knommu/platform/68VZ328/config.c
Diff comments   View file @ 8c2b58c
  1 +/***************************************************************************/
  2 +
  3 +/*
  4 + * linux/arch/m68knommu/platform/68VZ328/config.c
  5 + *
  6 + * Copyright (C) 1993 Hamish Macdonald
  7 + * Copyright (C) 1999 D. Jeff Dionne
  8 + * Copyright (C) 2001 Georges Menie, Ken Desmet
  9 + *
  10 + * This file is subject to the terms and conditions of the GNU General Public
  11 + * License. See the file COPYING in the main directory of this archive
  12 + * for more details.
  13 + */
  14 +
  15 +/***************************************************************************/
  16 +
  17 +#include <linux/config.h>
  18 +#include <linux/types.h>
  19 +#include <linux/kernel.h>
  20 +#include <linux/mm.h>
  21 +#include <linux/tty.h>
  22 +#include <linux/console.h>
  23 +#include <linux/kd.h>
  24 +#include <linux/netdevice.h>
  25 +
  26 +#include <asm/setup.h>
  27 +#include <asm/system.h>
  28 +#include <asm/pgtable.h>
  29 +#include <asm/irq.h>
  30 +#include <asm/machdep.h>
  31 +#include <asm/MC68VZ328.h>
  32 +#include <asm/bootstd.h>
  33 +
  34 +#ifdef CONFIG_INIT_LCD
  35 +#include "bootlogo.h"
  36 +#endif
  37 +
  38 +/***************************************************************************/
  39 +
  40 +void m68328_timer_init(irqreturn_t (*timer_routine) (int, void *, struct pt_regs *));
  41 +void m68328_timer_tick(void);
  42 +unsigned long m68328_timer_gettimeoffset(void);
  43 +void m68328_timer_gettod(int *year, int *mon, int *day, int *hour, int *min, int *sec);
  44 +
  45 +/***************************************************************************/
  46 +/* Init Drangon Engine hardware */
  47 +/***************************************************************************/
  48 +#if defined(CONFIG_DRAGEN2)
  49 +
  50 +static void m68vz328_reset(void)
  51 +{
  52 + local_irq_disable();
  53 +
  54 +#ifdef CONFIG_INIT_LCD
  55 + PBDATA |= 0x20; /* disable CCFL light */
  56 + PKDATA |= 0x4; /* disable LCD controller */
  57 + LCKCON = 0;
  58 +#endif
  59 +
  60 + __asm__ __volatile__(
  61 + "reset\n\t"
  62 + "moveal #0x04000000, %a0\n\t"
  63 + "moveal 0(%a0), %sp\n\t"
  64 + "moveal 4(%a0), %a0\n\t"
  65 + "jmp (%a0)"
  66 + );
  67 +}
  68 +
  69 +static void init_hardware(char *command, int size)
  70 +{
  71 +#ifdef CONFIG_DIRECT_IO_ACCESS
  72 + SCR = 0x10; /* allow user access to internal registers */
  73 +#endif
  74 +
  75 + /* CSGB Init */
  76 + CSGBB = 0x4000;
  77 + CSB = 0x1a1;
  78 +
  79 + /* CS8900 init */
  80 + /* PK3: hardware sleep function pin, active low */
  81 + PKSEL |= PK(3); /* select pin as I/O */
  82 + PKDIR |= PK(3); /* select pin as output */
  83 + PKDATA |= PK(3); /* set pin high */
  84 +
  85 + /* PF5: hardware reset function pin, active high */
  86 + PFSEL |= PF(5); /* select pin as I/O */
  87 + PFDIR |= PF(5); /* select pin as output */
  88 + PFDATA &= ~PF(5); /* set pin low */
  89 +
  90 + /* cs8900 hardware reset */
  91 + PFDATA |= PF(5);
  92 + { int i; for (i = 0; i < 32000; ++i); }
  93 + PFDATA &= ~PF(5);
  94 +
  95 + /* INT1 enable (cs8900 IRQ) */
  96 + PDPOL &= ~PD(1); /* active high signal */
  97 + PDIQEG &= ~PD(1);
  98 + PDIRQEN |= PD(1); /* IRQ enabled */
  99 +
  100 +#ifdef CONFIG_68328_SERIAL_UART2
  101 + /* Enable RXD TXD port bits to enable UART2 */
  102 + PJSEL &= ~(PJ(5) | PJ(4));
  103 +#endif
  104 +
  105 +#ifdef CONFIG_INIT_LCD
  106 + /* initialize LCD controller */
  107 + LSSA = (long) screen_bits;
  108 + LVPW = 0x14;
  109 + LXMAX = 0x140;
  110 + LYMAX = 0xef;
  111 + LRRA = 0;
  112 + LPXCD = 3;
  113 + LPICF = 0x08;
  114 + LPOLCF = 0;
  115 + LCKCON = 0x80;
  116 + PCPDEN = 0xff;
  117 + PCSEL = 0;
  118 +
  119 + /* Enable LCD controller */
  120 + PKDIR |= 0x4;
  121 + PKSEL |= 0x4;
  122 + PKDATA &= ~0x4;
  123 +
  124 + /* Enable CCFL backlighting circuit */
  125 + PBDIR |= 0x20;
  126 + PBSEL |= 0x20;
  127 + PBDATA &= ~0x20;
  128 +
  129 + /* contrast control register */
  130 + PFDIR |= 0x1;
  131 + PFSEL &= ~0x1;
  132 + PWMR = 0x037F;
  133 +#endif
  134 +}
  135 +
  136 +/***************************************************************************/
  137 +/* Init RT-Control uCdimm hardware */
  138 +/***************************************************************************/
  139 +#elif defined(CONFIG_UCDIMM)
  140 +
  141 +static void m68vz328_reset(void)
  142 +{
  143 + local_irq_disable();
  144 + asm volatile ("
  145 + moveal #0x10c00000, %a0;
  146 + moveb #0, 0xFFFFF300;
  147 + moveal 0(%a0), %sp;
  148 + moveal 4(%a0), %a0;
  149 + jmp (%a0);
  150 + ");
  151 +}
  152 +
  153 +unsigned char *cs8900a_hwaddr;
  154 +static int errno;
  155 +
  156 +_bsc0(char *, getserialnum)
  157 +_bsc1(unsigned char *, gethwaddr, int, a)
  158 +_bsc1(char *, getbenv, char *, a)
  159 +
  160 +static void init_hardware(char *command, int size)
  161 +{
  162 + char *p;
  163 +
  164 + printk(KERN_INFO "uCdimm serial string [%s]\n", getserialnum());
  165 + p = cs8900a_hwaddr = gethwaddr(0);
  166 + printk(KERN_INFO "uCdimm hwaddr %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
  167 + p[0], p[1], p[2], p[3], p[4], p[5]);
  168 + p = getbenv("APPEND");
  169 + if (p)
  170 + strcpy(p, command);
  171 + else
  172 + command[0] = 0;
  173 +}
  174 +
  175 +/***************************************************************************/
  176 +#else
  177 +
  178 +static void m68vz328_reset(void)
  179 +{
  180 +}
  181 +
  182 +static void init_hardware(char *command, int size)
  183 +{
  184 +}
  185 +
  186 +/***************************************************************************/
  187 +#endif
  188 +/***************************************************************************/
  189 +
  190 +void config_BSP(char *command, int size)
  191 +{
  192 + printk(KERN_INFO "68VZ328 DragonBallVZ support (c) 2001 Lineo, Inc.\n");
  193 +
  194 +#if defined(CONFIG_BOOTPARAM)
  195 + strncpy(command, CONFIG_BOOTPARAM_STRING, size);
  196 + command[size-1] = 0;
  197 +#else
  198 + memset(command, 0, size);
  199 +#endif
  200 +
  201 + init_hardware(command, size);
  202 +
  203 + mach_sched_init = (void *) m68328_timer_init;
  204 + mach_tick = m68328_timer_tick;
  205 + mach_gettimeoffset = m68328_timer_gettimeoffset;
  206 + mach_gettod = m68328_timer_gettod;
  207 + mach_reset = m68vz328_reset;
  208 +}
  209 +
  210 +/***************************************************************************/