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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himalaya.c (4036B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * linux/arch/arm/mach-pxa/himalaya.c
      4 *
      5 * Hardware definitions for the HTC Himalaya
      6 *
      7 * Based on 2.6.21-hh20's himalaya.c and himalaya_lcd.c
      8 *
      9 * Copyright (c) 2008 Zbynek Michl <Zbynek.Michl@seznam.cz>
     10 */
     11
     12#include <linux/kernel.h>
     13#include <linux/init.h>
     14#include <linux/device.h>
     15#include <linux/fb.h>
     16#include <linux/platform_device.h>
     17
     18#include <video/w100fb.h>
     19
     20#include <asm/setup.h>
     21#include <asm/mach-types.h>
     22#include <asm/mach/arch.h>
     23
     24#include "pxa25x.h"
     25
     26#include "generic.h"
     27
     28/* ---------------------- Himalaya LCD definitions -------------------- */
     29
     30static struct w100_gen_regs himalaya_lcd_regs = {
     31	.lcd_format =        0x00000003,
     32	.lcdd_cntl1 =        0x00000000,
     33	.lcdd_cntl2 =        0x0003ffff,
     34	.genlcd_cntl1 =      0x00fff003,
     35	.genlcd_cntl2 =      0x00000003,
     36	.genlcd_cntl3 =      0x000102aa,
     37};
     38
     39static struct w100_mode himalaya4_lcd_mode = {
     40	.xres 		= 240,
     41	.yres 		= 320,
     42	.left_margin 	= 0,
     43	.right_margin 	= 31,
     44	.upper_margin 	= 15,
     45	.lower_margin 	= 0,
     46	.crtc_ss	= 0x80150014,
     47	.crtc_ls	= 0xa0fb00f7,
     48	.crtc_gs	= 0xc0080007,
     49	.crtc_vpos_gs	= 0x00080007,
     50	.crtc_rev	= 0x0000000a,
     51	.crtc_dclk	= 0x81700030,
     52	.crtc_gclk	= 0x8015010f,
     53	.crtc_goe	= 0x00000000,
     54	.pll_freq 	= 80,
     55	.pixclk_divider = 15,
     56	.pixclk_divider_rotated = 15,
     57	.pixclk_src     = CLK_SRC_PLL,
     58	.sysclk_divider = 0,
     59	.sysclk_src     = CLK_SRC_PLL,
     60};
     61
     62static struct w100_mode himalaya6_lcd_mode = {
     63	.xres 		= 240,
     64	.yres 		= 320,
     65	.left_margin 	= 9,
     66	.right_margin 	= 8,
     67	.upper_margin 	= 5,
     68	.lower_margin 	= 4,
     69	.crtc_ss	= 0x80150014,
     70	.crtc_ls	= 0xa0fb00f7,
     71	.crtc_gs	= 0xc0080007,
     72	.crtc_vpos_gs	= 0x00080007,
     73	.crtc_rev	= 0x0000000a,
     74	.crtc_dclk	= 0xa1700030,
     75	.crtc_gclk	= 0x8015010f,
     76	.crtc_goe	= 0x00000000,
     77	.pll_freq 	= 95,
     78	.pixclk_divider = 0xb,
     79	.pixclk_divider_rotated = 4,
     80	.pixclk_src     = CLK_SRC_PLL,
     81	.sysclk_divider = 1,
     82	.sysclk_src     = CLK_SRC_PLL,
     83};
     84
     85static struct w100_gpio_regs himalaya_w100_gpio_info = {
     86	.init_data1 = 0xffff0000,	/* GPIO_DATA  */
     87	.gpio_dir1  = 0x00000000,	/* GPIO_CNTL1 */
     88	.gpio_oe1   = 0x003c0000,	/* GPIO_CNTL2 */
     89	.init_data2 = 0x00000000,	/* GPIO_DATA2 */
     90	.gpio_dir2  = 0x00000000,	/* GPIO_CNTL3 */
     91	.gpio_oe2   = 0x00000000,	/* GPIO_CNTL4 */
     92};
     93
     94static struct w100fb_mach_info himalaya_fb_info = {
     95	.num_modes  = 1,
     96	.regs       = &himalaya_lcd_regs,
     97	.gpio       = &himalaya_w100_gpio_info,
     98	.xtal_freq = 16000000,
     99};
    100
    101static struct resource himalaya_fb_resources[] = {
    102	[0] = {
    103		.start	= 0x08000000,
    104		.end	= 0x08ffffff,
    105		.flags	= IORESOURCE_MEM,
    106	},
    107};
    108
    109static struct platform_device himalaya_fb_device = {
    110	.name           = "w100fb",
    111	.id             = -1,
    112	.dev            = {
    113		.platform_data  = &himalaya_fb_info,
    114	},
    115	.num_resources  = ARRAY_SIZE(himalaya_fb_resources),
    116	.resource       = himalaya_fb_resources,
    117};
    118
    119/* ----------------------------------------------------------------------- */
    120
    121static struct platform_device *devices[] __initdata = {
    122	&himalaya_fb_device,
    123};
    124
    125static void __init himalaya_lcd_init(void)
    126{
    127	int himalaya_boardid;
    128
    129	himalaya_boardid = 0x4; /* hardcoded (detection needs ASIC3 functions) */
    130	printk(KERN_INFO "himalaya LCD Driver init. boardid=%d\n",
    131		himalaya_boardid);
    132
    133	switch (himalaya_boardid) {
    134	case 0x4:
    135		himalaya_fb_info.modelist = &himalaya4_lcd_mode;
    136	break;
    137	case 0x6:
    138		himalaya_fb_info.modelist = &himalaya6_lcd_mode;
    139	break;
    140	default:
    141		printk(KERN_INFO "himalaya lcd_init: unknown boardid=%d. Using 0x4\n",
    142			himalaya_boardid);
    143		himalaya_fb_info.modelist = &himalaya4_lcd_mode;
    144	}
    145}
    146
    147static void __init himalaya_init(void)
    148{
    149	pxa_set_ffuart_info(NULL);
    150	pxa_set_btuart_info(NULL);
    151	pxa_set_stuart_info(NULL);
    152	himalaya_lcd_init();
    153	platform_add_devices(devices, ARRAY_SIZE(devices));
    154}
    155
    156
    157MACHINE_START(HIMALAYA, "HTC Himalaya")
    158	.atag_offset = 0x100,
    159	.map_io = pxa25x_map_io,
    160	.nr_irqs = PXA_NR_IRQS,
    161	.init_irq = pxa25x_init_irq,
    162	.handle_irq = pxa25x_handle_irq,
    163	.init_machine = himalaya_init,
    164	.init_time	= pxa_timer_init,
    165	.restart	= pxa_restart,
    166MACHINE_END