xref: /openbmc/linux/arch/arm/mach-nomadik/cpu-8815.c (revision 23174ee5)
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