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 */
60 static 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
cpu8815_map_io(void)69 static void __init cpu8815_map_io(void)
70 {
71 iotable_init(cpu8815_io_desc, ARRAY_SIZE(cpu8815_io_desc));
72 }
73
cpu8815_restart(enum reboot_mode mode,const char * cmd)74 static void cpu8815_restart(enum reboot_mode mode, const char *cmd)
75 {
76 void __iomem *srcbase = ioremap(NOMADIK_SRC_BASE, SZ_4K);
77
78 /* FIXME: use egpio when implemented */
79
80 /* Write anything to Reset status register */
81 writel(1, srcbase + 0x18);
82 }
83
84 static const char * cpu8815_board_compat[] = {
85 "st,nomadik-nhk-15",
86 "calaosystems,usb-s8815",
87 NULL,
88 };
89
90 DT_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,
96 MACHINE_END
97