1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright STMicroelectronics, 2007.
4 */
5
6#include <linux/types.h>
7#include <linux/init.h>
8#include <linux/io.h>
9
10#include <asm/mach/arch.h>
11#include <asm/mach/map.h>
12#include <asm/mach-types.h>
13
14/*
15 * These are the only hard-coded address offsets we still have to use.
16 */
17#define NOMADIK_FSMC_BASE 0x10100000 /* FSMC registers */
18#define NOMADIK_SDRAMC_BASE 0x10110000 /* SDRAM Controller */
19#define NOMADIK_CLCDC_BASE 0x10120000 /* CLCD Controller */
20#define NOMADIK_MDIF_BASE 0x10120000 /* MDIF */
21#define NOMADIK_DMA0_BASE 0x10130000 /* DMA0 Controller */
22#define NOMADIK_IC_BASE 0x10140000 /* Vectored Irq Controller */
23#define NOMADIK_DMA1_BASE 0x10150000 /* DMA1 Controller */
24#define NOMADIK_USB_BASE 0x10170000 /* USB-OTG conf reg base */
25#define NOMADIK_CRYP_BASE 0x10180000 /* Crypto processor */
26#define NOMADIK_SHA1_BASE 0x10190000 /* SHA-1 Processor */
27#define NOMADIK_XTI_BASE 0x101A0000 /* XTI */
28#define NOMADIK_RNG_BASE 0x101B0000 /* Random number generator */
29#define NOMADIK_SRC_BASE 0x101E0000 /* SRC base */
30#define NOMADIK_WDOG_BASE 0x101E1000 /* Watchdog */
31#define NOMADIK_MTU0_BASE 0x101E2000 /* Multiple Timer 0 */
32#define NOMADIK_MTU1_BASE 0x101E3000 /* Multiple Timer 1 */
33#define NOMADIK_GPIO0_BASE 0x101E4000 /* GPIO0 */
34#define NOMADIK_GPIO1_BASE 0x101E5000 /* GPIO1 */
35#define NOMADIK_GPIO2_BASE 0x101E6000 /* GPIO2 */
36#define NOMADIK_GPIO3_BASE 0x101E7000 /* GPIO3 */
37#define NOMADIK_RTC_BASE 0x101E8000 /* Real Time Clock base */
38#define NOMADIK_PMU_BASE 0x101E9000 /* Power Management Unit */
39#define NOMADIK_OWM_BASE 0x101EA000 /* One wire master */
40#define NOMADIK_SCR_BASE 0x101EF000 /* Secure Control registers */
41#define NOMADIK_MSP2_BASE 0x101F0000 /* MSP 2 interface */
42#define NOMADIK_MSP1_BASE 0x101F1000 /* MSP 1 interface */
43#define NOMADIK_UART2_BASE 0x101F2000 /* UART 2 interface */
44#define NOMADIK_SSIRx_BASE 0x101F3000 /* SSI 8-ch rx interface */
45#define NOMADIK_SSITx_BASE 0x101F4000 /* SSI 8-ch tx interface */
46#define NOMADIK_MSHC_BASE 0x101F5000 /* Memory Stick(Pro) Host */
47#define NOMADIK_SDI_BASE 0x101F6000 /* SD-card/MM-Card */
48#define NOMADIK_I2C1_BASE 0x101F7000 /* I2C1 interface */
49#define NOMADIK_I2C0_BASE 0x101F8000 /* I2C0 interface */
50#define NOMADIK_MSP0_BASE 0x101F9000 /* MSP 0 interface */
51#define NOMADIK_FIRDA_BASE 0x101FA000 /* FIrDA interface */
52#define NOMADIK_UART1_BASE 0x101FB000 /* UART 1 interface */
53#define NOMADIK_SSP_BASE 0x101FC000 /* SSP interface */
54#define NOMADIK_UART0_BASE 0x101FD000 /* UART 0 interface */
55#define NOMADIK_SGA_BASE 0x101FE000 /* SGA interface */
56#define NOMADIK_L2CC_BASE 0x10210000 /* L2 Cache controller */
57#define NOMADIK_UART1_VBASE 0xF01FB000
58
59/* This is needed for LL-debug/earlyprintk/debug-macro.S */
60static struct map_desc cpu8815_io_desc[] __initdata = {
61 {
62 .virtual = NOMADIK_UART1_VBASE,
63 .pfn = __phys_to_pfn(NOMADIK_UART1_BASE),
64 .length = SZ_4K,
65 .type = MT_DEVICE,
66 },
67};
68
69static void __init cpu8815_map_io(void)
70{
71 iotable_init(cpu8815_io_desc, ARRAY_SIZE(cpu8815_io_desc));
72}
73
74static void cpu8815_restart(enum reboot_mode mode, const char *cmd)
75{
76 void __iomem *srcbase = ioremap(NOMADIK_SRC_BASE, size: SZ_4K);
77
78 /* FIXME: use egpio when implemented */
79
80 /* Write anything to Reset status register */
81 writel(val: 1, addr: srcbase + 0x18);
82}
83
84static const char * cpu8815_board_compat[] = {
85 "st,nomadik-nhk-15",
86 "calaosystems,usb-s8815",
87 NULL,
88};
89
90DT_MACHINE_START(NOMADIK_DT, "Nomadik STn8815")
91 .l2c_aux_val = 0,
92 .l2c_aux_mask = ~0,
93 .map_io = cpu8815_map_io,
94 .restart = cpu8815_restart,
95 .dt_compat = cpu8815_board_compat,
96MACHINE_END
97

source code of linux/arch/arm/mach-nomadik/cpu-8815.c