cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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setup.c (3845B)

      1// SPDX-License-Identifier: GPL-2.0
      2/*
      3 * linux/arch/sh/boards/hp6xx/setup.c
      4 *
      5 * Copyright (C) 2002 Andriy Skulysh
      6 * Copyright (C) 2007 Kristoffer Ericson <Kristoffer_e1@hotmail.com>
      7 *
      8 * Setup code for HP620/HP660/HP680/HP690 (internal peripherials only)
      9 */
     10#include <linux/types.h>
     11#include <linux/init.h>
     12#include <linux/platform_device.h>
     13#include <linux/irq.h>
     14#include <linux/sh_intc.h>
     15#include <sound/sh_dac_audio.h>
     16#include <asm/hd64461.h>
     17#include <asm/io.h>
     18#include <mach/hp6xx.h>
     19#include <cpu/dac.h>
     20
     21#define	SCPCR	0xa4000116
     22#define	SCPDR	0xa4000136
     23
     24/* CF Slot */
     25static struct resource cf_ide_resources[] = {
     26	[0] = {
     27		.start = 0x15000000 + 0x1f0,
     28		.end   = 0x15000000 + 0x1f0 + 0x08 - 0x01,
     29		.flags = IORESOURCE_MEM,
     30	},
     31	[1] = {
     32		.start = 0x15000000 + 0x1fe,
     33		.end   = 0x15000000 + 0x1fe + 0x01,
     34		.flags = IORESOURCE_MEM,
     35	},
     36	[2] = {
     37		.start = evt2irq(0xba0),
     38		.flags = IORESOURCE_IRQ,
     39	},
     40};
     41
     42static struct platform_device cf_ide_device = {
     43	.name		=  "pata_platform",
     44	.id		=  -1,
     45	.num_resources	= ARRAY_SIZE(cf_ide_resources),
     46	.resource	= cf_ide_resources,
     47};
     48
     49static struct platform_device jornadakbd_device = {
     50	.name		= "jornada680_kbd",
     51	.id		= -1,
     52};
     53
     54static void dac_audio_start(struct dac_audio_pdata *pdata)
     55{
     56	u16 v;
     57	u8 v8;
     58
     59	/* HP Jornada 680/690 speaker on */
     60	v = inw(HD64461_GPADR);
     61	v &= ~HD64461_GPADR_SPEAKER;
     62	outw(v, HD64461_GPADR);
     63
     64	/* HP Palmtop 620lx/660lx speaker on */
     65	v8 = inb(PKDR);
     66	v8 &= ~PKDR_SPEAKER;
     67	outb(v8, PKDR);
     68
     69	sh_dac_enable(pdata->channel);
     70}
     71
     72static void dac_audio_stop(struct dac_audio_pdata *pdata)
     73{
     74	u16 v;
     75	u8 v8;
     76
     77	/* HP Jornada 680/690 speaker off */
     78	v = inw(HD64461_GPADR);
     79	v |= HD64461_GPADR_SPEAKER;
     80	outw(v, HD64461_GPADR);
     81
     82	/* HP Palmtop 620lx/660lx speaker off */
     83	v8 = inb(PKDR);
     84	v8 |= PKDR_SPEAKER;
     85	outb(v8, PKDR);
     86
     87	sh_dac_output(0, pdata->channel);
     88	sh_dac_disable(pdata->channel);
     89}
     90
     91static struct dac_audio_pdata dac_audio_platform_data = {
     92	.buffer_size		= 64000,
     93	.channel		= 1,
     94	.start			= dac_audio_start,
     95	.stop			= dac_audio_stop,
     96};
     97
     98static struct platform_device dac_audio_device = {
     99	.name		= "dac_audio",
    100	.id		= -1,
    101	.dev		= {
    102		.platform_data	= &dac_audio_platform_data,
    103	}
    104
    105};
    106
    107static struct platform_device *hp6xx_devices[] __initdata = {
    108	&cf_ide_device,
    109	&jornadakbd_device,
    110	&dac_audio_device,
    111};
    112
    113static void __init hp6xx_init_irq(void)
    114{
    115	/* Gets touchscreen and powerbutton IRQ working */
    116	plat_irq_setup_pins(IRQ_MODE_IRQ);
    117}
    118
    119static int __init hp6xx_devices_setup(void)
    120{
    121	return platform_add_devices(hp6xx_devices, ARRAY_SIZE(hp6xx_devices));
    122}
    123
    124static void __init hp6xx_setup(char **cmdline_p)
    125{
    126	u8 v8;
    127	u16 v;
    128
    129	v = inw(HD64461_STBCR);
    130	v |=	HD64461_STBCR_SURTST | HD64461_STBCR_SIRST	|
    131		HD64461_STBCR_STM1ST | HD64461_STBCR_STM0ST	|
    132		HD64461_STBCR_SAFEST | HD64461_STBCR_SPC0ST	|
    133		HD64461_STBCR_SMIAST | HD64461_STBCR_SAFECKE_OST|
    134		HD64461_STBCR_SAFECKE_IST;
    135#ifndef CONFIG_HD64461_ENABLER
    136	v |= HD64461_STBCR_SPC1ST;
    137#endif
    138	outw(v, HD64461_STBCR);
    139	v = inw(HD64461_GPADR);
    140	v |= HD64461_GPADR_SPEAKER | HD64461_GPADR_PCMCIA0;
    141	outw(v, HD64461_GPADR);
    142
    143	outw(HD64461_PCCGCR_VCC0 | HD64461_PCCSCR_VCC1, HD64461_PCC0GCR);
    144
    145#ifndef CONFIG_HD64461_ENABLER
    146	outw(HD64461_PCCGCR_VCC0 | HD64461_PCCSCR_VCC1, HD64461_PCC1GCR);
    147#endif
    148
    149	sh_dac_output(0, DAC_SPEAKER_VOLUME);
    150	sh_dac_disable(DAC_SPEAKER_VOLUME);
    151	v8 = __raw_readb(DACR);
    152	v8 &= ~DACR_DAE;
    153	__raw_writeb(v8,DACR);
    154
    155	v8 = __raw_readb(SCPDR);
    156	v8 |= SCPDR_TS_SCAN_X | SCPDR_TS_SCAN_Y;
    157	v8 &= ~SCPDR_TS_SCAN_ENABLE;
    158	__raw_writeb(v8, SCPDR);
    159
    160	v = __raw_readw(SCPCR);
    161	v &= ~SCPCR_TS_MASK;
    162	v |= SCPCR_TS_ENABLE;
    163	__raw_writew(v, SCPCR);
    164}
    165device_initcall(hp6xx_devices_setup);
    166
    167static struct sh_machine_vector mv_hp6xx __initmv = {
    168	.mv_name = "hp6xx",
    169	.mv_setup = hp6xx_setup,
    170	/* Enable IRQ0 -> IRQ3 in IRQ_MODE */
    171	.mv_init_irq = hp6xx_init_irq,
    172};