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-pxa320.c (6422B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 *  arch/arm/mach-pxa/colibri-pxa320.c
      4 *
      5 *  Support for Toradex PXA320/310 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/machine.h>
     15#include <linux/gpio.h>
     16#include <linux/interrupt.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 "pxa320.h"
     24#include "colibri.h"
     25#include <linux/platform_data/video-pxafb.h>
     26#include <linux/platform_data/usb-ohci-pxa27x.h>
     27#include <linux/platform_data/asoc-pxa.h>
     28#include "pxa27x-udc.h"
     29#include "udc.h"
     30
     31#include "generic.h"
     32#include "devices.h"
     33
     34#ifdef	CONFIG_MACH_COLIBRI_EVALBOARD
     35static mfp_cfg_t colibri_pxa320_evalboard_pin_config[] __initdata = {
     36	/* MMC */
     37	GPIO22_MMC1_CLK,
     38	GPIO23_MMC1_CMD,
     39	GPIO18_MMC1_DAT0,
     40	GPIO19_MMC1_DAT1,
     41	GPIO20_MMC1_DAT2,
     42	GPIO21_MMC1_DAT3,
     43	GPIO28_GPIO,	/* SD detect */
     44
     45	/* UART 1 configuration (may be set by bootloader) */
     46	GPIO99_UART1_CTS,
     47	GPIO104_UART1_RTS,
     48	GPIO97_UART1_RXD,
     49	GPIO98_UART1_TXD,
     50	GPIO101_UART1_DTR,
     51	GPIO103_UART1_DSR,
     52	GPIO100_UART1_DCD,
     53	GPIO102_UART1_RI,
     54
     55	/* UART 2 configuration */
     56	GPIO109_UART2_CTS,
     57	GPIO112_UART2_RTS,
     58	GPIO110_UART2_RXD,
     59	GPIO111_UART2_TXD,
     60
     61	/* UART 3 configuration */
     62	GPIO30_UART3_RXD,
     63	GPIO31_UART3_TXD,
     64
     65	/* UHC */
     66	GPIO2_2_USBH_PEN,
     67	GPIO3_2_USBH_PWR,
     68
     69	/* I2C */
     70	GPIO32_I2C_SCL,
     71	GPIO33_I2C_SDA,
     72
     73	/* PCMCIA */
     74	MFP_CFG(GPIO59, AF7),	/* PRST ; AF7 to tristate */
     75	MFP_CFG(GPIO61, AF7),	/* PCE1 ; AF7 to tristate */
     76	MFP_CFG(GPIO60, AF7),	/* PCE2 ; AF7 to tristate */
     77	MFP_CFG(GPIO62, AF7),	/* PCD ; AF7 to tristate */
     78	MFP_CFG(GPIO56, AF7),	/* PSKTSEL ; AF7 to tristate */
     79	GPIO27_GPIO,		/* RDnWR ; input/tristate */
     80	GPIO50_GPIO,		/* PREG ; input/tristate */
     81	GPIO2_RDY,
     82	GPIO5_NPIOR,
     83	GPIO6_NPIOW,
     84	GPIO7_NPIOS16,
     85	GPIO8_NPWAIT,
     86	GPIO29_GPIO,		/* PRDY (READY GPIO) */
     87	GPIO57_GPIO,		/* PPEN (POWER GPIO) */
     88	GPIO81_GPIO,		/* PCD (DETECT GPIO) */
     89	GPIO77_GPIO,		/* PRST (RESET GPIO) */
     90	GPIO53_GPIO,		/* PBVD1 */
     91	GPIO79_GPIO,		/* PBVD2 */
     92	GPIO54_GPIO,		/* POE */
     93};
     94#else
     95static mfp_cfg_t colibri_pxa320_evalboard_pin_config[] __initdata = {};
     96#endif
     97
     98#if defined(CONFIG_AX88796)
     99#define COLIBRI_ETH_IRQ_GPIO	mfp_to_gpio(GPIO36_GPIO)
    100/*
    101 * Asix AX88796 Ethernet
    102 */
    103static struct ax_plat_data colibri_asix_platdata = {
    104	.flags		= 0, /* defined later */
    105	.wordlength	= 2,
    106};
    107
    108static struct resource colibri_asix_resource[] = {
    109	[0] = {
    110		.start = PXA3xx_CS2_PHYS,
    111		.end   = PXA3xx_CS2_PHYS + (0x20 * 2) - 1,
    112		.flags = IORESOURCE_MEM,
    113	},
    114	[1] = {
    115		.start = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO),
    116		.end   = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO),
    117		.flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
    118	}
    119};
    120
    121static struct platform_device asix_device = {
    122	.name		= "ax88796",
    123	.id		= 0,
    124	.num_resources 	= ARRAY_SIZE(colibri_asix_resource),
    125	.resource	= colibri_asix_resource,
    126	.dev		= {
    127		.platform_data = &colibri_asix_platdata
    128	}
    129};
    130
    131static mfp_cfg_t colibri_pxa320_eth_pin_config[] __initdata = {
    132	GPIO3_nCS2,			/* AX88796 chip select */
    133	GPIO36_GPIO | MFP_PULL_HIGH	/* AX88796 IRQ */
    134};
    135
    136static void __init colibri_pxa320_init_eth(void)
    137{
    138	colibri_pxa3xx_init_eth(&colibri_asix_platdata);
    139	pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_eth_pin_config));
    140	platform_device_register(&asix_device);
    141}
    142#else
    143static inline void __init colibri_pxa320_init_eth(void) {}
    144#endif /* CONFIG_AX88796 */
    145
    146#if defined(CONFIG_USB_PXA27X)||defined(CONFIG_USB_PXA27X_MODULE)
    147static struct gpiod_lookup_table gpio_vbus_gpiod_table = {
    148	.dev_id = "gpio-vbus",
    149	.table = {
    150		GPIO_LOOKUP("gpio-pxa", MFP_PIN_GPIO96,
    151			    "vbus", GPIO_ACTIVE_HIGH),
    152		{ },
    153	},
    154};
    155
    156static struct platform_device colibri_pxa320_gpio_vbus = {
    157	.name	= "gpio-vbus",
    158	.id	= -1,
    159};
    160
    161static void colibri_pxa320_udc_command(int cmd)
    162{
    163	if (cmd == PXA2XX_UDC_CMD_CONNECT)
    164		UP2OCR = UP2OCR_HXOE | UP2OCR_DPPUE;
    165	else if (cmd == PXA2XX_UDC_CMD_DISCONNECT)
    166		UP2OCR = UP2OCR_HXOE;
    167}
    168
    169static struct pxa2xx_udc_mach_info colibri_pxa320_udc_info __initdata = {
    170	.udc_command		= colibri_pxa320_udc_command,
    171	.gpio_pullup		= -1,
    172};
    173
    174static void __init colibri_pxa320_init_udc(void)
    175{
    176	pxa_set_udc_info(&colibri_pxa320_udc_info);
    177	gpiod_add_lookup_table(&gpio_vbus_gpiod_table);
    178	platform_device_register(&colibri_pxa320_gpio_vbus);
    179}
    180#else
    181static inline void colibri_pxa320_init_udc(void) {}
    182#endif
    183
    184#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
    185static mfp_cfg_t colibri_pxa320_lcd_pin_config[] __initdata = {
    186	GPIO6_2_LCD_LDD_0,
    187	GPIO7_2_LCD_LDD_1,
    188	GPIO8_2_LCD_LDD_2,
    189	GPIO9_2_LCD_LDD_3,
    190	GPIO10_2_LCD_LDD_4,
    191	GPIO11_2_LCD_LDD_5,
    192	GPIO12_2_LCD_LDD_6,
    193	GPIO13_2_LCD_LDD_7,
    194	GPIO63_LCD_LDD_8,
    195	GPIO64_LCD_LDD_9,
    196	GPIO65_LCD_LDD_10,
    197	GPIO66_LCD_LDD_11,
    198	GPIO67_LCD_LDD_12,
    199	GPIO68_LCD_LDD_13,
    200	GPIO69_LCD_LDD_14,
    201	GPIO70_LCD_LDD_15,
    202	GPIO71_LCD_LDD_16,
    203	GPIO72_LCD_LDD_17,
    204	GPIO73_LCD_CS_N,
    205	GPIO74_LCD_VSYNC,
    206	GPIO14_2_LCD_FCLK,
    207	GPIO15_2_LCD_LCLK,
    208	GPIO16_2_LCD_PCLK,
    209	GPIO17_2_LCD_BIAS,
    210};
    211
    212static void __init colibri_pxa320_init_lcd(void)
    213{
    214	pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_lcd_pin_config));
    215}
    216#else
    217static inline void colibri_pxa320_init_lcd(void) {}
    218#endif
    219
    220#if	defined(CONFIG_SND_AC97_CODEC) || \
    221	defined(CONFIG_SND_AC97_CODEC_MODULE)
    222static mfp_cfg_t colibri_pxa320_ac97_pin_config[] __initdata = {
    223	GPIO34_AC97_SYSCLK,
    224	GPIO35_AC97_SDATA_IN_0,
    225	GPIO37_AC97_SDATA_OUT,
    226	GPIO38_AC97_SYNC,
    227	GPIO39_AC97_BITCLK,
    228	GPIO40_AC97_nACRESET
    229};
    230
    231static inline void __init colibri_pxa320_init_ac97(void)
    232{
    233	pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_ac97_pin_config));
    234	pxa_set_ac97_info(NULL);
    235}
    236#else
    237static inline void colibri_pxa320_init_ac97(void) {}
    238#endif
    239
    240void __init colibri_pxa320_init(void)
    241{
    242	colibri_pxa320_init_eth();
    243	colibri_pxa3xx_init_nand();
    244	colibri_pxa320_init_lcd();
    245	colibri_pxa3xx_init_lcd(mfp_to_gpio(GPIO49_GPIO));
    246	colibri_pxa320_init_ac97();
    247	colibri_pxa320_init_udc();
    248
    249	/* Evalboard init */
    250	pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_evalboard_pin_config));
    251	colibri_evalboard_init();
    252}
    253
    254MACHINE_START(COLIBRI320, "Toradex Colibri PXA320")
    255	.atag_offset	= 0x100,
    256	.init_machine	= colibri_pxa320_init,
    257	.map_io		= pxa3xx_map_io,
    258	.nr_irqs	= PXA_NR_IRQS,
    259	.init_irq	= pxa3xx_init_irq,
    260	.handle_irq	= pxa3xx_handle_irq,
    261	.init_time	= pxa_timer_init,
    262	.restart	= pxa_restart,
    263MACHINE_END
    264