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/device.h> 9 #include <linux/amba/bus.h> 10 #include <linux/platform_device.h> 11 #include <linux/io.h> 12 #include <linux/slab.h> 13 #include <linux/irq.h> 14 #include <linux/dma-mapping.h> 15 #include <linux/of_irq.h> 16 #include <linux/of_address.h> 17 #include <linux/of_platform.h> 18 19 #include <asm/mach/arch.h> 20 #include <asm/mach/map.h> 21 #include <asm/mach/time.h> 22 #include <asm/mach-types.h> 23 24 #include <asm/cacheflush.h> 25 #include <asm/hardware/cache-l2x0.h> 26 27 /* 28 * These are the only hard-coded address offsets we still have to use. 29 */ 30 #define NOMADIK_FSMC_BASE 0x10100000 /* FSMC registers */ 31 #define NOMADIK_SDRAMC_BASE 0x10110000 /* SDRAM Controller */ 32 #define NOMADIK_CLCDC_BASE 0x10120000 /* CLCD Controller */ 33 #define NOMADIK_MDIF_BASE 0x10120000 /* MDIF */ 34 #define NOMADIK_DMA0_BASE 0x10130000 /* DMA0 Controller */ 35 #define NOMADIK_IC_BASE 0x10140000 /* Vectored Irq Controller */ 36 #define NOMADIK_DMA1_BASE 0x10150000 /* DMA1 Controller */ 37 #define NOMADIK_USB_BASE 0x10170000 /* USB-OTG conf reg base */ 38 #define NOMADIK_CRYP_BASE 0x10180000 /* Crypto processor */ 39 #define NOMADIK_SHA1_BASE 0x10190000 /* SHA-1 Processor */ 40 #define NOMADIK_XTI_BASE 0x101A0000 /* XTI */ 41 #define NOMADIK_RNG_BASE 0x101B0000 /* Random number generator */ 42 #define NOMADIK_SRC_BASE 0x101E0000 /* SRC base */ 43 #define NOMADIK_WDOG_BASE 0x101E1000 /* Watchdog */ 44 #define NOMADIK_MTU0_BASE 0x101E2000 /* Multiple Timer 0 */ 45 #define NOMADIK_MTU1_BASE 0x101E3000 /* Multiple Timer 1 */ 46 #define NOMADIK_GPIO0_BASE 0x101E4000 /* GPIO0 */ 47 #define NOMADIK_GPIO1_BASE 0x101E5000 /* GPIO1 */ 48 #define NOMADIK_GPIO2_BASE 0x101E6000 /* GPIO2 */ 49 #define NOMADIK_GPIO3_BASE 0x101E7000 /* GPIO3 */ 50 #define NOMADIK_RTC_BASE 0x101E8000 /* Real Time Clock base */ 51 #define NOMADIK_PMU_BASE 0x101E9000 /* Power Management Unit */ 52 #define NOMADIK_OWM_BASE 0x101EA000 /* One wire master */ 53 #define NOMADIK_SCR_BASE 0x101EF000 /* Secure Control registers */ 54 #define NOMADIK_MSP2_BASE 0x101F0000 /* MSP 2 interface */ 55 #define NOMADIK_MSP1_BASE 0x101F1000 /* MSP 1 interface */ 56 #define NOMADIK_UART2_BASE 0x101F2000 /* UART 2 interface */ 57 #define NOMADIK_SSIRx_BASE 0x101F3000 /* SSI 8-ch rx interface */ 58 #define NOMADIK_SSITx_BASE 0x101F4000 /* SSI 8-ch tx interface */ 59 #define NOMADIK_MSHC_BASE 0x101F5000 /* Memory Stick(Pro) Host */ 60 #define NOMADIK_SDI_BASE 0x101F6000 /* SD-card/MM-Card */ 61 #define NOMADIK_I2C1_BASE 0x101F7000 /* I2C1 interface */ 62 #define NOMADIK_I2C0_BASE 0x101F8000 /* I2C0 interface */ 63 #define NOMADIK_MSP0_BASE 0x101F9000 /* MSP 0 interface */ 64 #define NOMADIK_FIRDA_BASE 0x101FA000 /* FIrDA interface */ 65 #define NOMADIK_UART1_BASE 0x101FB000 /* UART 1 interface */ 66 #define NOMADIK_SSP_BASE 0x101FC000 /* SSP interface */ 67 #define NOMADIK_UART0_BASE 0x101FD000 /* UART 0 interface */ 68 #define NOMADIK_SGA_BASE 0x101FE000 /* SGA interface */ 69 #define NOMADIK_L2CC_BASE 0x10210000 /* L2 Cache controller */ 70 #define NOMADIK_UART1_VBASE 0xF01FB000 71 72 /* This is needed for LL-debug/earlyprintk/debug-macro.S */ 73 static struct map_desc cpu8815_io_desc[] __initdata = { 74 { 75 .virtual = NOMADIK_UART1_VBASE, 76 .pfn = __phys_to_pfn(NOMADIK_UART1_BASE), 77 .length = SZ_4K, 78 .type = MT_DEVICE, 79 }, 80 }; 81 82 static void __init cpu8815_map_io(void) 83 { 84 iotable_init(cpu8815_io_desc, ARRAY_SIZE(cpu8815_io_desc)); 85 } 86 87 static void cpu8815_restart(enum reboot_mode mode, const char *cmd) 88 { 89 void __iomem *srcbase = ioremap(NOMADIK_SRC_BASE, SZ_4K); 90 91 /* FIXME: use egpio when implemented */ 92 93 /* Write anything to Reset status register */ 94 writel(1, srcbase + 0x18); 95 } 96 97 static const char * cpu8815_board_compat[] = { 98 "st,nomadik-nhk-15", 99 "calaosystems,usb-s8815", 100 NULL, 101 }; 102 103 DT_MACHINE_START(NOMADIK_DT, "Nomadik STn8815") 104 .l2c_aux_val = 0, 105 .l2c_aux_mask = ~0, 106 .map_io = cpu8815_map_io, 107 .restart = cpu8815_restart, 108 .dt_compat = cpu8815_board_compat, 109 MACHINE_END 110