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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shannon.c (3890B)

      1// SPDX-License-Identifier: GPL-2.0
      2/*
      3 * linux/arch/arm/mach-sa1100/shannon.c
      4 */
      5
      6#include <linux/init.h>
      7#include <linux/device.h>
      8#include <linux/gpio/machine.h>
      9#include <linux/kernel.h>
     10#include <linux/platform_data/sa11x0-serial.h>
     11#include <linux/tty.h>
     12#include <linux/mtd/mtd.h>
     13#include <linux/mtd/partitions.h>
     14#include <linux/regulator/fixed.h>
     15#include <linux/regulator/machine.h>
     16
     17#include <video/sa1100fb.h>
     18
     19#include <mach/hardware.h>
     20#include <asm/mach-types.h>
     21#include <asm/setup.h>
     22
     23#include <asm/mach/arch.h>
     24#include <asm/mach/flash.h>
     25#include <asm/mach/map.h>
     26#include <linux/platform_data/mfd-mcp-sa11x0.h>
     27#include <mach/shannon.h>
     28#include <mach/irqs.h>
     29
     30#include "generic.h"
     31
     32static struct mtd_partition shannon_partitions[] = {
     33	{
     34		.name		= "BLOB boot loader",
     35		.offset		= 0,
     36		.size		= 0x20000
     37	},
     38	{
     39		.name		= "kernel",
     40		.offset		= MTDPART_OFS_APPEND,
     41		.size		= 0xe0000
     42	},
     43	{
     44		.name		= "initrd",
     45		.offset		= MTDPART_OFS_APPEND,	
     46		.size		= MTDPART_SIZ_FULL
     47	}
     48};
     49
     50static struct flash_platform_data shannon_flash_data = {
     51	.map_name	= "cfi_probe",
     52	.parts		= shannon_partitions,
     53	.nr_parts	= ARRAY_SIZE(shannon_partitions),
     54};
     55
     56static struct resource shannon_flash_resource =
     57	DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_4M);
     58
     59static struct mcp_plat_data shannon_mcp_data = {
     60	.mccr0		= MCCR0_ADM,
     61	.sclk_rate	= 11981000,
     62};
     63
     64static struct sa1100fb_mach_info shannon_lcd_info = {
     65	.pixclock	= 152500,	.bpp		= 8,
     66	.xres		= 640,		.yres		= 480,
     67
     68	.hsync_len	= 4,		.vsync_len	= 3,
     69	.left_margin	= 2,		.upper_margin	= 0,
     70	.right_margin	= 1,		.lower_margin	= 0,
     71
     72	.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
     73
     74	.lccr0		= LCCR0_Color | LCCR0_Dual | LCCR0_Pas,
     75	.lccr3		= LCCR3_ACBsDiv(512),
     76};
     77
     78static struct gpiod_lookup_table shannon_pcmcia0_gpio_table = {
     79	.dev_id = "sa11x0-pcmcia.0",
     80	.table = {
     81		GPIO_LOOKUP("gpio", 24, "detect", GPIO_ACTIVE_LOW),
     82		GPIO_LOOKUP("gpio", 26, "ready", GPIO_ACTIVE_HIGH),
     83		{ },
     84	},
     85};
     86
     87static struct gpiod_lookup_table shannon_pcmcia1_gpio_table = {
     88	.dev_id = "sa11x0-pcmcia.1",
     89	.table = {
     90		GPIO_LOOKUP("gpio", 25, "detect", GPIO_ACTIVE_LOW),
     91		GPIO_LOOKUP("gpio", 27, "ready", GPIO_ACTIVE_HIGH),
     92		{ },
     93	},
     94};
     95
     96static struct regulator_consumer_supply shannon_cf_vcc_consumers[] = {
     97	REGULATOR_SUPPLY("vcc", "sa11x0-pcmcia.0"),
     98	REGULATOR_SUPPLY("vcc", "sa11x0-pcmcia.1"),
     99};
    100
    101static struct fixed_voltage_config shannon_cf_vcc_pdata __initdata = {
    102	.supply_name = "cf-power",
    103	.microvolts = 3300000,
    104	.enabled_at_boot = 1,
    105};
    106
    107static struct gpiod_lookup_table shannon_display_gpio_table = {
    108	.dev_id = "sa11x0-fb",
    109	.table = {
    110		GPIO_LOOKUP("gpio", 22, "shannon-lcden", GPIO_ACTIVE_HIGH),
    111		{ },
    112	},
    113};
    114
    115static void __init shannon_init(void)
    116{
    117	sa11x0_register_fixed_regulator(0, &shannon_cf_vcc_pdata,
    118					shannon_cf_vcc_consumers,
    119					ARRAY_SIZE(shannon_cf_vcc_consumers),
    120					false);
    121	sa11x0_register_pcmcia(0, &shannon_pcmcia0_gpio_table);
    122	sa11x0_register_pcmcia(1, &shannon_pcmcia1_gpio_table);
    123	sa11x0_ppc_configure_mcp();
    124	gpiod_add_lookup_table(&shannon_display_gpio_table);
    125	sa11x0_register_lcd(&shannon_lcd_info);
    126	sa11x0_register_mtd(&shannon_flash_data, &shannon_flash_resource, 1);
    127	sa11x0_register_mcp(&shannon_mcp_data);
    128}
    129
    130static void __init shannon_map_io(void)
    131{
    132	sa1100_map_io();
    133
    134	sa1100_register_uart(0, 3);
    135	sa1100_register_uart(1, 1);
    136
    137	Ser1SDCR0 |= SDCR0_SUS;
    138	GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD);
    139	GPDR |= GPIO_UART_TXD | SHANNON_GPIO_CODEC_RESET;
    140	GPDR &= ~GPIO_UART_RXD;
    141	PPAR |= PPAR_UPR;
    142
    143	/* reset the codec */
    144	GPCR = SHANNON_GPIO_CODEC_RESET;
    145	GPSR = SHANNON_GPIO_CODEC_RESET;
    146}
    147
    148MACHINE_START(SHANNON, "Shannon (AKA: Tuxscreen)")
    149	.atag_offset	= 0x100,
    150	.map_io		= shannon_map_io,
    151	.nr_irqs	= SA1100_NR_IRQS,
    152	.init_irq	= sa1100_init_irq,
    153	.init_time	= sa1100_timer_init,
    154	.init_machine	= shannon_init,
    155	.init_late	= sa11x0_init_late,
    156	.restart	= sa11x0_restart,
    157MACHINE_END