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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colibri-pxa300.c (4560B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 *  arch/arm/mach-pxa/colibri-pxa300.c
      4 *
      5 *  Support for Toradex PXA300/310 based Colibri module
      6 *
      7 *  Daniel Mack <daniel@caiaq.de>
      8 *  Matthias Meier <matthias.j.meier@gmx.net>
      9 */
     10
     11#include <linux/init.h>
     12#include <linux/kernel.h>
     13#include <linux/platform_device.h>
     14#include <linux/gpio.h>
     15#include <linux/interrupt.h>
     16#include <linux/soc/pxa/cpu.h>
     17
     18#include <asm/mach-types.h>
     19#include <linux/sizes.h>
     20#include <asm/mach/arch.h>
     21#include <asm/mach/irq.h>
     22
     23#include "pxa300.h"
     24#include "colibri.h"
     25#include <linux/platform_data/usb-ohci-pxa27x.h>
     26#include <linux/platform_data/video-pxafb.h>
     27#include <linux/platform_data/asoc-pxa.h>
     28
     29#include "generic.h"
     30#include "devices.h"
     31
     32
     33#ifdef CONFIG_MACH_COLIBRI_EVALBOARD
     34static mfp_cfg_t colibri_pxa300_evalboard_pin_config[] __initdata = {
     35	/* MMC */
     36	GPIO7_MMC1_CLK,
     37	GPIO14_MMC1_CMD,
     38	GPIO3_MMC1_DAT0,
     39	GPIO4_MMC1_DAT1,
     40	GPIO5_MMC1_DAT2,
     41	GPIO6_MMC1_DAT3,
     42	GPIO13_GPIO,	/* GPIO13_COLIBRI_PXA300_SD_DETECT */
     43
     44	/* UHC */
     45	GPIO0_2_USBH_PEN,
     46	GPIO1_2_USBH_PWR,
     47	GPIO77_USB_P3_1,
     48	GPIO78_USB_P3_2,
     49	GPIO79_USB_P3_3,
     50	GPIO80_USB_P3_4,
     51	GPIO81_USB_P3_5,
     52	GPIO82_USB_P3_6,
     53
     54	/* I2C */
     55	GPIO21_I2C_SCL,
     56	GPIO22_I2C_SDA,
     57};
     58#else
     59static mfp_cfg_t colibri_pxa300_evalboard_pin_config[] __initdata = {};
     60#endif
     61
     62#if defined(CONFIG_AX88796)
     63#define COLIBRI_ETH_IRQ_GPIO	mfp_to_gpio(GPIO26_GPIO)
     64/*
     65 * Asix AX88796 Ethernet
     66 */
     67static struct ax_plat_data colibri_asix_platdata = {
     68	.flags		= 0, /* defined later */
     69	.wordlength	= 2,
     70};
     71
     72static struct resource colibri_asix_resource[] = {
     73	[0] = {
     74		.start = PXA3xx_CS2_PHYS,
     75		.end   = PXA3xx_CS2_PHYS + (0x20 * 2) - 1,
     76		.flags = IORESOURCE_MEM,
     77	},
     78	[1] = {
     79		.start = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO),
     80		.end   = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO),
     81		.flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
     82	}
     83};
     84
     85static struct platform_device asix_device = {
     86	.name		= "ax88796",
     87	.id		= 0,
     88	.num_resources 	= ARRAY_SIZE(colibri_asix_resource),
     89	.resource	= colibri_asix_resource,
     90	.dev		= {
     91		.platform_data = &colibri_asix_platdata
     92	}
     93};
     94
     95static mfp_cfg_t colibri_pxa300_eth_pin_config[] __initdata = {
     96	GPIO1_nCS2,			/* AX88796 chip select */
     97	GPIO26_GPIO | MFP_PULL_HIGH	/* AX88796 IRQ */
     98};
     99
    100static void __init colibri_pxa300_init_eth(void)
    101{
    102	colibri_pxa3xx_init_eth(&colibri_asix_platdata);
    103	pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_eth_pin_config));
    104	platform_device_register(&asix_device);
    105}
    106#else
    107static inline void __init colibri_pxa300_init_eth(void) {}
    108#endif /* CONFIG_AX88796 */
    109
    110#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
    111static mfp_cfg_t colibri_pxa300_lcd_pin_config[] __initdata = {
    112	GPIO54_LCD_LDD_0,
    113	GPIO55_LCD_LDD_1,
    114	GPIO56_LCD_LDD_2,
    115	GPIO57_LCD_LDD_3,
    116	GPIO58_LCD_LDD_4,
    117	GPIO59_LCD_LDD_5,
    118	GPIO60_LCD_LDD_6,
    119	GPIO61_LCD_LDD_7,
    120	GPIO62_LCD_LDD_8,
    121	GPIO63_LCD_LDD_9,
    122	GPIO64_LCD_LDD_10,
    123	GPIO65_LCD_LDD_11,
    124	GPIO66_LCD_LDD_12,
    125	GPIO67_LCD_LDD_13,
    126	GPIO68_LCD_LDD_14,
    127	GPIO69_LCD_LDD_15,
    128	GPIO70_LCD_LDD_16,
    129	GPIO71_LCD_LDD_17,
    130	GPIO62_LCD_CS_N,
    131	GPIO72_LCD_FCLK,
    132	GPIO73_LCD_LCLK,
    133	GPIO74_LCD_PCLK,
    134	GPIO75_LCD_BIAS,
    135	GPIO76_LCD_VSYNC,
    136};
    137
    138static void __init colibri_pxa300_init_lcd(void)
    139{
    140	pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_lcd_pin_config));
    141}
    142
    143#else
    144static inline void colibri_pxa300_init_lcd(void) {}
    145#endif /* CONFIG_FB_PXA || CONFIG_FB_PXA_MODULE */
    146
    147#if defined(CONFIG_SND_AC97_CODEC) || defined(CONFIG_SND_AC97_CODEC_MODULE)
    148static mfp_cfg_t colibri_pxa310_ac97_pin_config[] __initdata = {
    149	GPIO24_AC97_SYSCLK,
    150	GPIO23_AC97_nACRESET,
    151	GPIO25_AC97_SDATA_IN_0,
    152	GPIO27_AC97_SDATA_OUT,
    153	GPIO28_AC97_SYNC,
    154	GPIO29_AC97_BITCLK
    155};
    156
    157static inline void __init colibri_pxa310_init_ac97(void)
    158{
    159	/* no AC97 codec on Colibri PXA300 */
    160	if (!cpu_is_pxa310())
    161		return;
    162
    163	pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa310_ac97_pin_config));
    164	pxa_set_ac97_info(NULL);
    165}
    166#else
    167static inline void colibri_pxa310_init_ac97(void) {}
    168#endif
    169
    170void __init colibri_pxa300_init(void)
    171{
    172	colibri_pxa300_init_eth();
    173	colibri_pxa3xx_init_nand();
    174	colibri_pxa300_init_lcd();
    175	colibri_pxa3xx_init_lcd(mfp_to_gpio(GPIO39_GPIO));
    176	colibri_pxa310_init_ac97();
    177
    178	/* Evalboard init */
    179	pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_evalboard_pin_config));
    180	colibri_evalboard_init();
    181}
    182
    183MACHINE_START(COLIBRI300, "Toradex Colibri PXA300")
    184	.atag_offset	= 0x100,
    185	.init_machine	= colibri_pxa300_init,
    186	.map_io		= pxa3xx_map_io,
    187	.nr_irqs	= PXA_NR_IRQS,
    188	.init_irq	= pxa3xx_init_irq,
    189	.handle_irq	= pxa3xx_handle_irq,
    190	.init_time	= pxa_timer_init,
    191	.restart	= pxa_restart,
    192MACHINE_END
    193