/* * Copyright (C) 2006,2007 Felix Fietkau * Copyright (C) 2006,2007 Eugene Konev * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef __AR7_H__ #define __AR7_H__ #include #include #include #include #define AR7_SDRAM_BASE 0x14000000 #define AR7_REGS_BASE 0x08610000 #define AR7_REGS_MAC0 (AR7_REGS_BASE + 0x0000) #define AR7_REGS_GPIO (AR7_REGS_BASE + 0x0900) /* 0x08610A00 - 0x08610BFF (512 bytes, 128 bytes / clock) */ #define AR7_REGS_POWER (AR7_REGS_BASE + 0x0a00) #define AR7_REGS_CLOCKS (AR7_REGS_POWER + 0x80) #define UR8_REGS_CLOCKS (AR7_REGS_POWER + 0x20) #define AR7_REGS_UART0 (AR7_REGS_BASE + 0x0e00) #define AR7_REGS_USB (AR7_REGS_BASE + 0x1200) #define AR7_REGS_RESET (AR7_REGS_BASE + 0x1600) #define AR7_REGS_PINSEL (AR7_REGS_BASE + 0x160C) #define AR7_REGS_VLYNQ0 (AR7_REGS_BASE + 0x1800) #define AR7_REGS_DCL (AR7_REGS_BASE + 0x1a00) #define AR7_REGS_VLYNQ1 (AR7_REGS_BASE + 0x1c00) #define AR7_REGS_MDIO (AR7_REGS_BASE + 0x1e00) #define AR7_REGS_IRQ (AR7_REGS_BASE + 0x2400) #define AR7_REGS_MAC1 (AR7_REGS_BASE + 0x2800) #define AR7_REGS_WDT (AR7_REGS_BASE + 0x1f00) #define UR8_REGS_WDT (AR7_REGS_BASE + 0x0b00) #define UR8_REGS_UART1 (AR7_REGS_BASE + 0x0f00) /* Titan registers */ #define TITAN_REGS_ESWITCH_BASE (0x08640000) #define TITAN_REGS_MAC0 (TITAN_REGS_ESWITCH_BASE) #define TITAN_REGS_MAC1 (TITAN_REGS_ESWITCH_BASE + 0x0800) #define TITAN_REGS_MDIO (TITAN_REGS_ESWITCH_BASE + 0x02000) #define TITAN_REGS_VLYNQ0 (AR7_REGS_BASE + 0x1c00) #define TITAN_REGS_VLYNQ1 (AR7_REGS_BASE + 0x1300) #define AR7_RESET_PERIPHERAL 0x0 #define AR7_RESET_SOFTWARE 0x4 #define AR7_RESET_STATUS 0x8 #define AR7_RESET_BIT_CPMAC_LO 17 #define AR7_RESET_BIT_CPMAC_HI 21 #define AR7_RESET_BIT_MDIO 22 #define AR7_RESET_BIT_EPHY 26 #define TITAN_RESET_BIT_EPHY1 28 /* GPIO control registers */ #define AR7_GPIO_INPUT 0x0 #define AR7_GPIO_OUTPUT 0x4 #define AR7_GPIO_DIR 0x8 #define AR7_GPIO_ENABLE 0xc #define TITAN_GPIO_INPUT_0 0x0 #define TITAN_GPIO_INPUT_1 0x4 #define TITAN_GPIO_OUTPUT_0 0x8 #define TITAN_GPIO_OUTPUT_1 0xc #define TITAN_GPIO_DIR_0 0x10 #define TITAN_GPIO_DIR_1 0x14 #define TITAN_GPIO_ENBL_0 0x18 #define TITAN_GPIO_ENBL_1 0x1c #define AR7_CHIP_7100 0x18 #define AR7_CHIP_7200 0x2b #define AR7_CHIP_7300 0x05 #define AR7_CHIP_TITAN 0x07 #define TITAN_CHIP_1050 0x0f #define TITAN_CHIP_1055 0x0e #define TITAN_CHIP_1056 0x0d #define TITAN_CHIP_1060 0x07 /* Interrupts */ #define AR7_IRQ_UART0 15 #define AR7_IRQ_UART1 16 /* Clocks */ #define AR7_AFE_CLOCK 35328000 #define AR7_REF_CLOCK 25000000 #define AR7_XTAL_CLOCK 24000000 /* DCL */ #define AR7_WDT_HW_ENA 0x10 struct plat_cpmac_data { int reset_bit; int power_bit; u32 phy_mask; char dev_addr[6]; }; struct plat_dsl_data { int reset_bit_dsl; int reset_bit_sar; }; extern int ar7_cpu_clock, ar7_bus_clock, ar7_dsp_clock; static inline int ar7_is_titan(void) { return (readl((void *)KSEG1ADDR(AR7_REGS_GPIO + 0x24)) & 0xffff) == AR7_CHIP_TITAN; } static inline u16 ar7_chip_id(void) { return ar7_is_titan() ? AR7_CHIP_TITAN : (readl((void *) KSEG1ADDR(AR7_REGS_GPIO + 0x14)) & 0xffff); } static inline u16 titan_chip_id(void) { unsigned int val = readl((void *)KSEG1ADDR(AR7_REGS_GPIO + TITAN_GPIO_INPUT_1)); return ((val >> 12) & 0x0f); } static inline u8 ar7_chip_rev(void) { return (readl((void *)KSEG1ADDR(AR7_REGS_GPIO + (ar7_is_titan() ? 0x24 : 0x14))) >> 16) & 0xff; } struct clk { unsigned int rate; }; static inline int ar7_has_high_cpmac(void) { u16 chip_id = ar7_chip_id(); switch (chip_id) { case AR7_CHIP_7100: case AR7_CHIP_7200: return 0; case AR7_CHIP_7300: return 1; default: return -ENXIO; } } #define ar7_has_high_vlynq ar7_has_high_cpmac #define ar7_has_second_uart ar7_has_high_cpmac static inline void ar7_device_enable(u32 bit) { void *reset_reg = (void *)KSEG1ADDR(AR7_REGS_RESET + AR7_RESET_PERIPHERAL); writel(readl(reset_reg) | (1 << bit), reset_reg); msleep(20); } static inline void ar7_device_disable(u32 bit) { void *reset_reg = (void *)KSEG1ADDR(AR7_REGS_RESET + AR7_RESET_PERIPHERAL); writel(readl(reset_reg) & ~(1 << bit), reset_reg); msleep(20); } static inline void ar7_device_reset(u32 bit) { ar7_device_disable(bit); ar7_device_enable(bit); } static inline void ar7_device_on(u32 bit) { void *power_reg = (void *)KSEG1ADDR(AR7_REGS_POWER); writel(readl(power_reg) | (1 << bit), power_reg); msleep(20); } static inline void ar7_device_off(u32 bit) { void *power_reg = (void *)KSEG1ADDR(AR7_REGS_POWER); writel(readl(power_reg) & ~(1 << bit), power_reg); msleep(20); } int __init ar7_gpio_init(void); void __init ar7_init_clocks(void); /* Board specific GPIO functions */ int ar7_gpio_enable(unsigned gpio); int ar7_gpio_disable(unsigned gpio); #endif /* __AR7_H__ */