1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Copyright (C) 2006,2007 Felix Fietkau <nbd@openwrt.org>
4 * Copyright (C) 2006,2007 Eugene Konev <ejka@openwrt.org>
10 #include <linux/delay.h>
12 #include <linux/errno.h>
14 #include <asm/addrspace.h>
16 #define AR7_SDRAM_BASE 0x14000000
18 #define AR7_REGS_BASE 0x08610000
20 #define AR7_REGS_MAC0 (AR7_REGS_BASE + 0x0000)
21 #define AR7_REGS_GPIO (AR7_REGS_BASE + 0x0900)
22 /* 0x08610A00 - 0x08610BFF (512 bytes, 128 bytes / clock) */
23 #define AR7_REGS_POWER (AR7_REGS_BASE + 0x0a00)
24 #define AR7_REGS_CLOCKS (AR7_REGS_POWER + 0x80)
25 #define UR8_REGS_CLOCKS (AR7_REGS_POWER + 0x20)
26 #define AR7_REGS_UART0 (AR7_REGS_BASE + 0x0e00)
27 #define AR7_REGS_USB (AR7_REGS_BASE + 0x1200)
28 #define AR7_REGS_RESET (AR7_REGS_BASE + 0x1600)
29 #define AR7_REGS_PINSEL (AR7_REGS_BASE + 0x160C)
30 #define AR7_REGS_VLYNQ0 (AR7_REGS_BASE + 0x1800)
31 #define AR7_REGS_DCL (AR7_REGS_BASE + 0x1a00)
32 #define AR7_REGS_VLYNQ1 (AR7_REGS_BASE + 0x1c00)
33 #define AR7_REGS_MDIO (AR7_REGS_BASE + 0x1e00)
34 #define AR7_REGS_IRQ (AR7_REGS_BASE + 0x2400)
35 #define AR7_REGS_MAC1 (AR7_REGS_BASE + 0x2800)
37 #define AR7_REGS_WDT (AR7_REGS_BASE + 0x1f00)
38 #define UR8_REGS_WDT (AR7_REGS_BASE + 0x0b00)
39 #define UR8_REGS_UART1 (AR7_REGS_BASE + 0x0f00)
42 #define TITAN_REGS_ESWITCH_BASE (0x08640000)
43 #define TITAN_REGS_MAC0 (TITAN_REGS_ESWITCH_BASE)
44 #define TITAN_REGS_MAC1 (TITAN_REGS_ESWITCH_BASE + 0x0800)
45 #define TITAN_REGS_MDIO (TITAN_REGS_ESWITCH_BASE + 0x02000)
46 #define TITAN_REGS_VLYNQ0 (AR7_REGS_BASE + 0x1c00)
47 #define TITAN_REGS_VLYNQ1 (AR7_REGS_BASE + 0x1300)
49 #define AR7_RESET_PERIPHERAL 0x0
50 #define AR7_RESET_SOFTWARE 0x4
51 #define AR7_RESET_STATUS 0x8
53 #define AR7_RESET_BIT_CPMAC_LO 17
54 #define AR7_RESET_BIT_CPMAC_HI 21
55 #define AR7_RESET_BIT_MDIO 22
56 #define AR7_RESET_BIT_EPHY 26
58 #define TITAN_RESET_BIT_EPHY1 28
60 /* GPIO control registers */
61 #define AR7_GPIO_INPUT 0x0
62 #define AR7_GPIO_OUTPUT 0x4
63 #define AR7_GPIO_DIR 0x8
64 #define AR7_GPIO_ENABLE 0xc
65 #define TITAN_GPIO_INPUT_0 0x0
66 #define TITAN_GPIO_INPUT_1 0x4
67 #define TITAN_GPIO_OUTPUT_0 0x8
68 #define TITAN_GPIO_OUTPUT_1 0xc
69 #define TITAN_GPIO_DIR_0 0x10
70 #define TITAN_GPIO_DIR_1 0x14
71 #define TITAN_GPIO_ENBL_0 0x18
72 #define TITAN_GPIO_ENBL_1 0x1c
74 #define AR7_CHIP_7100 0x18
75 #define AR7_CHIP_7200 0x2b
76 #define AR7_CHIP_7300 0x05
77 #define AR7_CHIP_TITAN 0x07
78 #define TITAN_CHIP_1050 0x0f
79 #define TITAN_CHIP_1055 0x0e
80 #define TITAN_CHIP_1056 0x0d
81 #define TITAN_CHIP_1060 0x07
84 #define AR7_IRQ_UART0 15
85 #define AR7_IRQ_UART1 16
88 #define AR7_AFE_CLOCK 35328000
89 #define AR7_REF_CLOCK 25000000
90 #define AR7_XTAL_CLOCK 24000000
93 #define AR7_WDT_HW_ENA 0x10
95 struct plat_cpmac_data {
102 struct plat_dsl_data {
107 extern int ar7_cpu_clock, ar7_bus_clock, ar7_dsp_clock;
109 static inline int ar7_is_titan(void)
111 return (readl((void *)KSEG1ADDR(AR7_REGS_GPIO + 0x24)) & 0xffff) ==
115 static inline u16 ar7_chip_id(void)
117 return ar7_is_titan() ? AR7_CHIP_TITAN : (readl((void *)
118 KSEG1ADDR(AR7_REGS_GPIO + 0x14)) & 0xffff);
121 static inline u16 titan_chip_id(void)
123 unsigned int val = readl((void *)KSEG1ADDR(AR7_REGS_GPIO +
124 TITAN_GPIO_INPUT_1));
125 return ((val >> 12) & 0x0f);
128 static inline u8 ar7_chip_rev(void)
130 return (readl((void *)KSEG1ADDR(AR7_REGS_GPIO + (ar7_is_titan() ? 0x24 :
131 0x14))) >> 16) & 0xff;
134 static inline int ar7_has_high_cpmac(void)
136 u16 chip_id = ar7_chip_id();
147 #define ar7_has_high_vlynq ar7_has_high_cpmac
148 #define ar7_has_second_uart ar7_has_high_cpmac
150 static inline void ar7_device_enable(u32 bit)
153 (void *)KSEG1ADDR(AR7_REGS_RESET + AR7_RESET_PERIPHERAL);
154 writel(readl(reset_reg) | (1 << bit), reset_reg);
158 static inline void ar7_device_disable(u32 bit)
161 (void *)KSEG1ADDR(AR7_REGS_RESET + AR7_RESET_PERIPHERAL);
162 writel(readl(reset_reg) & ~(1 << bit), reset_reg);
166 static inline void ar7_device_reset(u32 bit)
168 ar7_device_disable(bit);
169 ar7_device_enable(bit);
172 static inline void ar7_device_on(u32 bit)
174 void *power_reg = (void *)KSEG1ADDR(AR7_REGS_POWER);
175 writel(readl(power_reg) | (1 << bit), power_reg);
179 static inline void ar7_device_off(u32 bit)
181 void *power_reg = (void *)KSEG1ADDR(AR7_REGS_POWER);
182 writel(readl(power_reg) & ~(1 << bit), power_reg);
186 int __init ar7_gpio_init(void);
187 void __init ar7_init_clocks(void);
189 /* Board specific GPIO functions */
190 int ar7_gpio_enable(unsigned gpio);
191 int ar7_gpio_disable(unsigned gpio);
193 #endif /* __AR7_H__ */