From 9124a4d02b182c47c61fc9e58234cde9a070d2d5 Mon Sep 17 00:00:00 2001 From: John Crispin Date: Thu, 11 Aug 2011 14:33:04 +0200 Subject: [PATCH 08/73] MIPS: lantiq: add basic support for FALC-ON Adds support for the FALC-ON SoC. This SoC is from the FTTH/GPON SoC family. Signed-off-by: Thomas Langer Signed-off-by: John Crispin --- .../include/asm/mach-lantiq/falcon/falcon_irq.h | 268 ++++++++++++++++++++ arch/mips/include/asm/mach-lantiq/falcon/irq.h | 18 ++ .../include/asm/mach-lantiq/falcon/lantiq_soc.h | 143 +++++++++++ arch/mips/include/asm/mach-lantiq/lantiq.h | 1 + arch/mips/lantiq/Kconfig | 4 + arch/mips/lantiq/Makefile | 1 + arch/mips/lantiq/Platform | 1 + arch/mips/lantiq/falcon/Makefile | 1 + arch/mips/lantiq/falcon/clk.c | 44 ++++ arch/mips/lantiq/falcon/devices.c | 87 +++++++ arch/mips/lantiq/falcon/devices.h | 18 ++ arch/mips/lantiq/falcon/prom.c | 93 +++++++ arch/mips/lantiq/falcon/reset.c | 87 +++++++ arch/mips/lantiq/falcon/sysctrl.c | 183 +++++++++++++ 14 files changed, 949 insertions(+), 0 deletions(-) create mode 100644 arch/mips/include/asm/mach-lantiq/falcon/falcon_irq.h create mode 100644 arch/mips/include/asm/mach-lantiq/falcon/irq.h create mode 100644 arch/mips/include/asm/mach-lantiq/falcon/lantiq_soc.h create mode 100644 arch/mips/lantiq/falcon/Makefile create mode 100644 arch/mips/lantiq/falcon/clk.c create mode 100644 arch/mips/lantiq/falcon/devices.c create mode 100644 arch/mips/lantiq/falcon/devices.h create mode 100644 arch/mips/lantiq/falcon/prom.c create mode 100644 arch/mips/lantiq/falcon/reset.c create mode 100644 arch/mips/lantiq/falcon/sysctrl.c diff --git a/arch/mips/include/asm/mach-lantiq/falcon/falcon_irq.h b/arch/mips/include/asm/mach-lantiq/falcon/falcon_irq.h new file mode 100644 index 0000000..4dc6466 --- /dev/null +++ b/arch/mips/include/asm/mach-lantiq/falcon/falcon_irq.h @@ -0,0 +1,268 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 Thomas Langer + */ + +#ifndef _FALCON_IRQ__ +#define _FALCON_IRQ__ + +#define INT_NUM_IRQ0 8 +#define INT_NUM_IM0_IRL0 (INT_NUM_IRQ0 + 0) +#define INT_NUM_IM1_IRL0 (INT_NUM_IM0_IRL0 + 32) +#define INT_NUM_IM2_IRL0 (INT_NUM_IM1_IRL0 + 32) +#define INT_NUM_IM3_IRL0 (INT_NUM_IM2_IRL0 + 32) +#define INT_NUM_IM4_IRL0 (INT_NUM_IM3_IRL0 + 32) +#define INT_NUM_EXTRA_START (INT_NUM_IM4_IRL0 + 32) +#define INT_NUM_IM_OFFSET (INT_NUM_IM1_IRL0 - INT_NUM_IM0_IRL0) + +#define MIPS_CPU_TIMER_IRQ 7 + +/* HOST IF Event Interrupt */ +#define FALCON_IRQ_HOST (INT_NUM_IM0_IRL0 + 0) +/* HOST IF Mailbox0 Receive Interrupt */ +#define FALCON_IRQ_HOST_MB0_RX (INT_NUM_IM0_IRL0 + 1) +/* HOST IF Mailbox0 Transmit Interrupt */ +#define FALCON_IRQ_HOST_MB0_TX (INT_NUM_IM0_IRL0 + 2) +/* HOST IF Mailbox1 Receive Interrupt */ +#define FALCON_IRQ_HOST_MB1_RX (INT_NUM_IM0_IRL0 + 3) +/* HOST IF Mailbox1 Transmit Interrupt */ +#define FALCON_IRQ_HOST_MB1_TX (INT_NUM_IM0_IRL0 + 4) +/* I2C Last Single Data Transfer Request */ +#define FALCON_IRQ_I2C_LSREQ (INT_NUM_IM0_IRL0 + 8) +/* I2C Single Data Transfer Request */ +#define FALCON_IRQ_I2C_SREQ (INT_NUM_IM0_IRL0 + 9) +/* I2C Last Burst Data Transfer Request */ +#define FALCON_IRQ_I2C_LBREQ (INT_NUM_IM0_IRL0 + 10) +/* I2C Burst Data Transfer Request */ +#define FALCON_IRQ_I2C_BREQ (INT_NUM_IM0_IRL0 + 11) +/* I2C Error Interrupt */ +#define FALCON_IRQ_I2C_I2C_ERR (INT_NUM_IM0_IRL0 + 12) +/* I2C Protocol Interrupt */ +#define FALCON_IRQ_I2C_I2C_P (INT_NUM_IM0_IRL0 + 13) +/* SSC Transmit Interrupt */ +#define FALCON_IRQ_SSC_T (INT_NUM_IM0_IRL0 + 14) +/* SSC Receive Interrupt */ +#define FALCON_IRQ_SSC_R (INT_NUM_IM0_IRL0 + 15) +/* SSC Error Interrupt */ +#define FALCON_IRQ_SSC_E (INT_NUM_IM0_IRL0 + 16) +/* SSC Frame Interrupt */ +#define FALCON_IRQ_SSC_F (INT_NUM_IM0_IRL0 + 17) +/* Advanced Encryption Standard Interrupt */ +#define FALCON_IRQ_AES_AES (INT_NUM_IM0_IRL0 + 27) +/* Secure Hash Algorithm Interrupt */ +#define FALCON_IRQ_SHA_HASH (INT_NUM_IM0_IRL0 + 28) +/* PCM Receive Interrupt */ +#define FALCON_IRQ_PCM_RX (INT_NUM_IM0_IRL0 + 29) +/* PCM Transmit Interrupt */ +#define FALCON_IRQ_PCM_TX (INT_NUM_IM0_IRL0 + 30) +/* PCM Transmit Crash Interrupt */ +#define FALCON_IRQ_PCM_HW2_CRASH (INT_NUM_IM0_IRL0 + 31) + +/* EBU Serial Flash Command Error */ +#define FALCON_IRQ_EBU_SF_CMDERR (INT_NUM_IM1_IRL0 + 0) +/* EBU Serial Flash Command Overwrite Error */ +#define FALCON_IRQ_EBU_SF_COVERR (INT_NUM_IM1_IRL0 + 1) +/* EBU Serial Flash Busy */ +#define FALCON_IRQ_EBU_SF_BUSY (INT_NUM_IM1_IRL0 + 2) +/* External Interrupt from GPIO P0 */ +#define FALCON_IRQ_GPIO_P0 (INT_NUM_IM1_IRL0 + 4) +/* External Interrupt from GPIO P1 */ +#define FALCON_IRQ_GPIO_P1 (INT_NUM_IM1_IRL0 + 5) +/* External Interrupt from GPIO P2 */ +#define FALCON_IRQ_GPIO_P2 (INT_NUM_IM1_IRL0 + 6) +/* External Interrupt from GPIO P3 */ +#define FALCON_IRQ_GPIO_P3 (INT_NUM_IM1_IRL0 + 7) +/* External Interrupt from GPIO P4 */ +#define FALCON_IRQ_GPIO_P4 (INT_NUM_IM1_IRL0 + 8) +/* 8kHz backup interrupt derived from core-PLL */ +#define FALCON_IRQ_FSC_BKP (INT_NUM_IM1_IRL0 + 10) +/* FSC Timer Interrupt 0 */ +#define FALCON_IRQ_FSCT_CMP0 (INT_NUM_IM1_IRL0 + 11) +/* FSC Timer Interrupt 1 */ +#define FALCON_IRQ_FSCT_CMP1 (INT_NUM_IM1_IRL0 + 12) +/* 8kHz root interrupt derived from GPON interface */ +#define FALCON_IRQ_FSC_ROOT (INT_NUM_IM1_IRL0 + 13) +/* Time of Day */ +#define FALCON_IRQ_TOD (INT_NUM_IM1_IRL0 + 14) +/* PMA Interrupt from IntNode of the 200MHz Domain */ +#define FALCON_IRQ_PMA_200M (INT_NUM_IM1_IRL0 + 15) +/* PMA Interrupt from IntNode of the TX Clk Domain */ +#define FALCON_IRQ_PMA_TX (INT_NUM_IM1_IRL0 + 16) +/* PMA Interrupt from IntNode of the RX Clk Domain */ +#define FALCON_IRQ_PMA_RX (INT_NUM_IM1_IRL0 + 17) +/* SYS1 Interrupt */ +#define FALCON_IRQ_SYS1 (INT_NUM_IM1_IRL0 + 20) +/* SYS GPE Interrupt */ +#define FALCON_IRQ_SYS_GPE (INT_NUM_IM1_IRL0 + 21) +/* Watchdog Access Error Interrupt */ +#define FALCON_IRQ_WDT_AEIR (INT_NUM_IM1_IRL0 + 24) +/* Watchdog Prewarning Interrupt */ +#define FALCON_IRQ_WDT_PIR (INT_NUM_IM1_IRL0 + 25) +/* SBIU interrupt */ +#define FALCON_IRQ_SBIU0 (INT_NUM_IM1_IRL0 + 27) +/* FPI Bus Control Unit Interrupt */ +#define FALCON_IRQ_BCU0 (INT_NUM_IM1_IRL0 + 29) +/* DDR Controller Interrupt */ +#define FALCON_IRQ_DDR (INT_NUM_IM1_IRL0 + 30) +/* Crossbar Error Interrupt */ +#define FALCON_IRQ_XBAR_ERROR (INT_NUM_IM1_IRL0 + 31) + +/* ICTRLL 0 Interrupt */ +#define FALCON_IRQ_ICTRLL0 (INT_NUM_IM2_IRL0 + 0) +/* ICTRLL 1 Interrupt */ +#define FALCON_IRQ_ICTRLL1 (INT_NUM_IM2_IRL0 + 1) +/* ICTRLL 2 Interrupt */ +#define FALCON_IRQ_ICTRLL2 (INT_NUM_IM2_IRL0 + 2) +/* ICTRLL 3 Interrupt */ +#define FALCON_IRQ_ICTRLL3 (INT_NUM_IM2_IRL0 + 3) +/* OCTRLL 0 Interrupt */ +#define FALCON_IRQ_OCTRLL0 (INT_NUM_IM2_IRL0 + 4) +/* OCTRLL 1 Interrupt */ +#define FALCON_IRQ_OCTRLL1 (INT_NUM_IM2_IRL0 + 5) +/* OCTRLL 2 Interrupt */ +#define FALCON_IRQ_OCTRLL2 (INT_NUM_IM2_IRL0 + 6) +/* OCTRLL 3 Interrupt */ +#define FALCON_IRQ_OCTRLL3 (INT_NUM_IM2_IRL0 + 7) +/* OCTRLG Interrupt */ +#define FALCON_IRQ_OCTRLG (INT_NUM_IM2_IRL0 + 9) +/* IQM Interrupt */ +#define FALCON_IRQ_IQM (INT_NUM_IM2_IRL0 + 10) +/* FSQM Interrupt */ +#define FALCON_IRQ_FSQM (INT_NUM_IM2_IRL0 + 11) +/* TMU Interrupt */ +#define FALCON_IRQ_TMU (INT_NUM_IM2_IRL0 + 12) +/* LINK1 Interrupt */ +#define FALCON_IRQ_LINK1 (INT_NUM_IM2_IRL0 + 14) +/* ICTRLC 0 Interrupt */ +#define FALCON_IRQ_ICTRLC0 (INT_NUM_IM2_IRL0 + 16) +/* ICTRLC 1 Interrupt */ +#define FALCON_IRQ_ICTRLC1 (INT_NUM_IM2_IRL0 + 17) +/* OCTRLC Interrupt */ +#define FALCON_IRQ_OCTRLC (INT_NUM_IM2_IRL0 + 18) +/* CONFIG Break Interrupt */ +#define FALCON_IRQ_CONFIG_BREAK (INT_NUM_IM2_IRL0 + 19) +/* CONFIG Interrupt */ +#define FALCON_IRQ_CONFIG (INT_NUM_IM2_IRL0 + 20) +/* Dispatcher Interrupt */ +#define FALCON_IRQ_DISP (INT_NUM_IM2_IRL0 + 21) +/* TBM Interrupt */ +#define FALCON_IRQ_TBM (INT_NUM_IM2_IRL0 + 22) +/* GTC Downstream Interrupt */ +#define FALCON_IRQ_GTC_DS (INT_NUM_IM2_IRL0 + 29) +/* GTC Upstream Interrupt */ +#define FALCON_IRQ_GTC_US (INT_NUM_IM2_IRL0 + 30) +/* EIM Interrupt */ +#define FALCON_IRQ_EIM (INT_NUM_IM2_IRL0 + 31) + +/* ASC0 Transmit Interrupt */ +#define FALCON_IRQ_ASC0_T (INT_NUM_IM3_IRL0 + 0) +/* ASC0 Receive Interrupt */ +#define FALCON_IRQ_ASC0_R (INT_NUM_IM3_IRL0 + 1) +/* ASC0 Error Interrupt */ +#define FALCON_IRQ_ASC0_E (INT_NUM_IM3_IRL0 + 2) +/* ASC0 Transmit Buffer Interrupt */ +#define FALCON_IRQ_ASC0_TB (INT_NUM_IM3_IRL0 + 3) +/* ASC0 Autobaud Start Interrupt */ +#define FALCON_IRQ_ASC0_ABST (INT_NUM_IM3_IRL0 + 4) +/* ASC0 Autobaud Detection Interrupt */ +#define FALCON_IRQ_ASC0_ABDET (INT_NUM_IM3_IRL0 + 5) +/* ASC1 Modem Status Interrupt */ +#define FALCON_IRQ_ASC0_MS (INT_NUM_IM3_IRL0 + 6) +/* ASC0 Soft Flow Control Interrupt */ +#define FALCON_IRQ_ASC0_SFC (INT_NUM_IM3_IRL0 + 7) +/* ASC1 Transmit Interrupt */ +#define FALCON_IRQ_ASC1_T (INT_NUM_IM3_IRL0 + 8) +/* ASC1 Receive Interrupt */ +#define FALCON_IRQ_ASC1_R (INT_NUM_IM3_IRL0 + 9) +/* ASC1 Error Interrupt */ +#define FALCON_IRQ_ASC1_E (INT_NUM_IM3_IRL0 + 10) +/* ASC1 Transmit Buffer Interrupt */ +#define FALCON_IRQ_ASC1_TB (INT_NUM_IM3_IRL0 + 11) +/* ASC1 Autobaud Start Interrupt */ +#define FALCON_IRQ_ASC1_ABST (INT_NUM_IM3_IRL0 + 12) +/* ASC1 Autobaud Detection Interrupt */ +#define FALCON_IRQ_ASC1_ABDET (INT_NUM_IM3_IRL0 + 13) +/* ASC1 Modem Status Interrupt */ +#define FALCON_IRQ_ASC1_MS (INT_NUM_IM3_IRL0 + 14) +/* ASC1 Soft Flow Control Interrupt */ +#define FALCON_IRQ_ASC1_SFC (INT_NUM_IM3_IRL0 + 15) +/* GPTC Timer/Counter 1A Interrupt */ +#define FALCON_IRQ_GPTC_TC1A (INT_NUM_IM3_IRL0 + 16) +/* GPTC Timer/Counter 1B Interrupt */ +#define FALCON_IRQ_GPTC_TC1B (INT_NUM_IM3_IRL0 + 17) +/* GPTC Timer/Counter 2A Interrupt */ +#define FALCON_IRQ_GPTC_TC2A (INT_NUM_IM3_IRL0 + 18) +/* GPTC Timer/Counter 2B Interrupt */ +#define FALCON_IRQ_GPTC_TC2B (INT_NUM_IM3_IRL0 + 19) +/* GPTC Timer/Counter 3A Interrupt */ +#define FALCON_IRQ_GPTC_TC3A (INT_NUM_IM3_IRL0 + 20) +/* GPTC Timer/Counter 3B Interrupt */ +#define FALCON_IRQ_GPTC_TC3B (INT_NUM_IM3_IRL0 + 21) +/* DFEV0, Channel 1 Transmit Interrupt */ +#define FALCON_IRQ_DFEV0_2TX (INT_NUM_IM3_IRL0 + 26) +/* DFEV0, Channel 1 Receive Interrupt */ +#define FALCON_IRQ_DFEV0_2RX (INT_NUM_IM3_IRL0 + 27) +/* DFEV0, Channel 1 General Purpose Interrupt */ +#define FALCON_IRQ_DFEV0_2GP (INT_NUM_IM3_IRL0 + 28) +/* DFEV0, Channel 0 Transmit Interrupt */ +#define FALCON_IRQ_DFEV0_1TX (INT_NUM_IM3_IRL0 + 29) +/* DFEV0, Channel 0 Receive Interrupt */ +#define FALCON_IRQ_DFEV0_1RX (INT_NUM_IM3_IRL0 + 30) +/* DFEV0, Channel 0 General Purpose Interrupt */ +#define FALCON_IRQ_DFEV0_1GP (INT_NUM_IM3_IRL0 + 31) + +/* ICTRLL 0 Error */ +#define FALCON_IRQ_ICTRLL0_ERR (INT_NUM_IM4_IRL0 + 0) +/* ICTRLL 1 Error */ +#define FALCON_IRQ_ICTRLL1_ERR (INT_NUM_IM4_IRL0 + 1) +/* ICTRLL 2 Error */ +#define FALCON_IRQ_ICTRLL2_ERR (INT_NUM_IM4_IRL0 + 2) +/* ICTRLL 3 Error */ +#define FALCON_IRQ_ICTRLL3_ERR (INT_NUM_IM4_IRL0 + 3) +/* OCTRLL 0 Error */ +#define FALCON_IRQ_OCTRLL0_ERR (INT_NUM_IM4_IRL0 + 4) +/* OCTRLL 1 Error */ +#define FALCON_IRQ_OCTRLL1_ERR (INT_NUM_IM4_IRL0 + 5) +/* OCTRLL 2 Error */ +#define FALCON_IRQ_OCTRLL2_ERR (INT_NUM_IM4_IRL0 + 6) +/* OCTRLL 3 Error */ +#define FALCON_IRQ_OCTRLL3_ERR (INT_NUM_IM4_IRL0 + 7) +/* ICTRLG Error */ +#define FALCON_IRQ_ICTRLG_ERR (INT_NUM_IM4_IRL0 + 8) +/* OCTRLG Error */ +#define FALCON_IRQ_OCTRLG_ERR (INT_NUM_IM4_IRL0 + 9) +/* IQM Error */ +#define FALCON_IRQ_IQM_ERR (INT_NUM_IM4_IRL0 + 10) +/* FSQM Error */ +#define FALCON_IRQ_FSQM_ERR (INT_NUM_IM4_IRL0 + 11) +/* TMU Error */ +#define FALCON_IRQ_TMU_ERR (INT_NUM_IM4_IRL0 + 12) +/* MPS Status Interrupt #0 (VPE1 to VPE0) */ +#define FALCON_IRQ_MPS_IR0 (INT_NUM_IM4_IRL0 + 14) +/* MPS Status Interrupt #1 (VPE1 to VPE0) */ +#define FALCON_IRQ_MPS_IR1 (INT_NUM_IM4_IRL0 + 15) +/* MPS Status Interrupt #2 (VPE1 to VPE0) */ +#define FALCON_IRQ_MPS_IR2 (INT_NUM_IM4_IRL0 + 16) +/* MPS Status Interrupt #3 (VPE1 to VPE0) */ +#define FALCON_IRQ_MPS_IR3 (INT_NUM_IM4_IRL0 + 17) +/* MPS Status Interrupt #4 (VPE1 to VPE0) */ +#define FALCON_IRQ_MPS_IR4 (INT_NUM_IM4_IRL0 + 18) +/* MPS Status Interrupt #5 (VPE1 to VPE0) */ +#define FALCON_IRQ_MPS_IR5 (INT_NUM_IM4_IRL0 + 19) +/* MPS Status Interrupt #6 (VPE1 to VPE0) */ +#define FALCON_IRQ_MPS_IR6 (INT_NUM_IM4_IRL0 + 20) +/* MPS Status Interrupt #7 (VPE1 to VPE0) */ +#define FALCON_IRQ_MPS_IR7 (INT_NUM_IM4_IRL0 + 21) +/* MPS Status Interrupt #8 (VPE1 to VPE0) */ +#define FALCON_IRQ_MPS_IR8 (INT_NUM_IM4_IRL0 + 22) +/* VPE0 Exception Level Flag Interrupt */ +#define FALCON_IRQ_VPE0_EXL (INT_NUM_IM4_IRL0 + 29) +/* VPE0 Error Level Flag Interrupt */ +#define FALCON_IRQ_VPE0_ERL (INT_NUM_IM4_IRL0 + 30) +/* VPE0 Performance Monitoring Counter Interrupt */ +#define FALCON_IRQ_VPE0_PMCIR (INT_NUM_IM4_IRL0 + 31) + +#endif /* _FALCON_IRQ__ */ diff --git a/arch/mips/include/asm/mach-lantiq/falcon/irq.h b/arch/mips/include/asm/mach-lantiq/falcon/irq.h new file mode 100644 index 0000000..2caccd9 --- /dev/null +++ b/arch/mips/include/asm/mach-lantiq/falcon/irq.h @@ -0,0 +1,18 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2011 Thomas Langer + */ + +#ifndef __FALCON_IRQ_H +#define __FALCON_IRQ_H + +#include + +#define NR_IRQS 328 + +#include_next + +#endif diff --git a/arch/mips/include/asm/mach-lantiq/falcon/lantiq_soc.h b/arch/mips/include/asm/mach-lantiq/falcon/lantiq_soc.h new file mode 100644 index 0000000..b074748 --- /dev/null +++ b/arch/mips/include/asm/mach-lantiq/falcon/lantiq_soc.h @@ -0,0 +1,143 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin + */ + +#ifndef _LTQ_FALCON_H__ +#define _LTQ_FALCON_H__ + +#ifdef CONFIG_SOC_FALCON + +#include + +/* Chip IDs */ +#define SOC_ID_FALCON 0x01B8 + +/* SoC Types */ +#define SOC_TYPE_FALCON 0x01 + +/* ASC0/1 - serial port */ +#define LTQ_ASC0_BASE_ADDR 0x1E100C00 +#define LTQ_ASC1_BASE_ADDR 0x1E100B00 +#define LTQ_ASC_SIZE 0x100 + +#define LTQ_ASC_TIR(x) (INT_NUM_IM3_IRL0 + (x * 8)) +#define LTQ_ASC_RIR(x) (INT_NUM_IM3_IRL0 + (x * 8) + 1) +#define LTQ_ASC_EIR(x) (INT_NUM_IM3_IRL0 + (x * 8) + 2) + +/* + * during early_printk no ioremap possible at this early stage + * lets use KSEG1 instead + */ +#define LTQ_EARLY_ASC KSEG1ADDR(LTQ_ASC0_BASE_ADDR) + +/* ICU - interrupt control unit */ +#define LTQ_ICU_BASE_ADDR 0x1F880200 +#define LTQ_ICU_SIZE 0x100 + +/* WDT */ +#define LTQ_WDT_BASE_ADDR 0x1F8803F0 +#define LTQ_WDT_SIZE 0x10 + +#define LTQ_RST_CAUSE_WDTRST 0x0002 + +/* EBU - external bus unit */ +#define LTQ_EBU_BASE_ADDR 0x18000000 +#define LTQ_EBU_SIZE 0x0100 + +#define LTQ_EBU_MODCON 0x000C + +/* GPIO */ +#define LTQ_GPIO0_BASE_ADDR 0x1D810000 +#define LTQ_GPIO0_SIZE 0x0080 +#define LTQ_GPIO1_BASE_ADDR 0x1E800100 +#define LTQ_GPIO1_SIZE 0x0080 +#define LTQ_GPIO2_BASE_ADDR 0x1D810100 +#define LTQ_GPIO2_SIZE 0x0080 +#define LTQ_GPIO3_BASE_ADDR 0x1E800200 +#define LTQ_GPIO3_SIZE 0x0080 +#define LTQ_GPIO4_BASE_ADDR 0x1E800300 +#define LTQ_GPIO4_SIZE 0x0080 +#define LTQ_PADCTRL0_BASE_ADDR 0x1DB01000 +#define LTQ_PADCTRL0_SIZE 0x0100 +#define LTQ_PADCTRL1_BASE_ADDR 0x1E800400 +#define LTQ_PADCTRL1_SIZE 0x0100 +#define LTQ_PADCTRL2_BASE_ADDR 0x1DB02000 +#define LTQ_PADCTRL2_SIZE 0x0100 +#define LTQ_PADCTRL3_BASE_ADDR 0x1E800500 +#define LTQ_PADCTRL3_SIZE 0x0100 +#define LTQ_PADCTRL4_BASE_ADDR 0x1E800600 +#define LTQ_PADCTRL4_SIZE 0x0100 + +/* CHIP ID */ +#define LTQ_STATUS_BASE_ADDR 0x1E802000 + +#define LTQ_FALCON_CHIPID ((u32 *)(KSEG1 + LTQ_STATUS_BASE_ADDR + 0x0c)) +#define LTQ_FALCON_CHIPTYPE ((u32 *)(KSEG1 + LTQ_STATUS_BASE_ADDR + 0x38)) +#define LTQ_FALCON_CHIPCONF ((u32 *)(KSEG1 + LTQ_STATUS_BASE_ADDR + 0x40)) + +/* SYSCTL - start/stop/restart/configure/... different parts of the Soc */ +#define LTQ_SYS1_BASE_ADDR 0x1EF00000 +#define LTQ_SYS1_SIZE 0x0100 +#define LTQ_STATUS_BASE_ADDR 0x1E802000 +#define LTQ_STATUS_SIZE 0x0080 +#define LTQ_SYS_ETH_BASE_ADDR 0x1DB00000 +#define LTQ_SYS_ETH_SIZE 0x0100 +#define LTQ_SYS_GPE_BASE_ADDR 0x1D700000 +#define LTQ_SYS_GPE_SIZE 0x0100 + +#define SYSCTL_SYS1 0 +#define SYSCTL_SYSETH 1 +#define SYSCTL_SYSGPE 2 + +/* Activation Status Register */ +#define ACTS_ASC1_ACT 0x00000800 +#define ACTS_P0 0x00010000 +#define ACTS_P1 0x00010000 +#define ACTS_P2 0x00020000 +#define ACTS_P3 0x00020000 +#define ACTS_P4 0x00040000 +#define ACTS_PADCTRL0 0x00100000 +#define ACTS_PADCTRL1 0x00100000 +#define ACTS_PADCTRL2 0x00200000 +#define ACTS_PADCTRL3 0x00200000 +#define ACTS_PADCTRL4 0x00400000 + +extern void ltq_sysctl_activate(int module, unsigned int mask); +extern void ltq_sysctl_deactivate(int module, unsigned int mask); +extern void ltq_sysctl_clken(int module, unsigned int mask); +extern void ltq_sysctl_clkdis(int module, unsigned int mask); +extern void ltq_sysctl_reboot(int module, unsigned int mask); +extern int ltq_gpe_is_activated(unsigned int mask); + +/* global register ranges */ +extern __iomem void *ltq_ebu_membase; +extern __iomem void *ltq_sys1_membase; +#define ltq_ebu_w32(x, y) ltq_w32((x), ltq_ebu_membase + (y)) +#define ltq_ebu_r32(x) ltq_r32(ltq_ebu_membase + (x)) +#define ltq_ebu_w32_mask(clear, set, reg) \ + ltq_ebu_w32((ltq_ebu_r32(reg) & ~(clear)) | (set), reg) + +#define ltq_sys1_w32(x, y) ltq_w32((x), ltq_sys1_membase + (y)) +#define ltq_sys1_r32(x) ltq_r32(ltq_sys1_membase + (x)) +#define ltq_sys1_w32_mask(clear, set, reg) \ + ltq_sys1_w32((ltq_sys1_r32(reg) & ~(clear)) | (set), reg) + +/* gpio_request wrapper to help configure the pin */ +extern int ltq_gpio_request(unsigned int pin, unsigned int mux, + unsigned int dir, const char *name); +extern int ltq_gpio_mux_set(unsigned int pin, unsigned int mux); + +/* to keep the irq code generic we need to define these to 0 as falcon + has no EIU/EBU */ +#define LTQ_EIU_BASE_ADDR 0 +#define LTQ_EBU_PCC_ISTAT 0 + +#define ltq_is_ar9() 0 +#define ltq_is_vr9() 0 + +#endif /* CONFIG_SOC_FALCON */ +#endif /* _LTQ_XWAY_H__ */ diff --git a/arch/mips/include/asm/mach-lantiq/lantiq.h b/arch/mips/include/asm/mach-lantiq/lantiq.h index 66d7300..188de0f 100644 --- a/arch/mips/include/asm/mach-lantiq/lantiq.h +++ b/arch/mips/include/asm/mach-lantiq/lantiq.h @@ -25,6 +25,7 @@ extern unsigned int ltq_get_soc_type(void); /* clock speeds */ #define CLOCK_60M 60000000 #define CLOCK_83M 83333333 +#define CLOCK_100M 100000000 #define CLOCK_111M 111111111 #define CLOCK_133M 133333333 #define CLOCK_167M 166666667 diff --git a/arch/mips/lantiq/Kconfig b/arch/mips/lantiq/Kconfig index 3fccf21..cb6b39f 100644 --- a/arch/mips/lantiq/Kconfig +++ b/arch/mips/lantiq/Kconfig @@ -16,8 +16,12 @@ config SOC_XWAY bool "XWAY" select SOC_TYPE_XWAY select HW_HAS_PCI + +config SOC_FALCON + bool "FALCON" endchoice source "arch/mips/lantiq/xway/Kconfig" +source "arch/mips/lantiq/falcon/Kconfig" endif diff --git a/arch/mips/lantiq/Makefile b/arch/mips/lantiq/Makefile index e5dae0e..7e9c69e 100644 --- a/arch/mips/lantiq/Makefile +++ b/arch/mips/lantiq/Makefile @@ -9,3 +9,4 @@ obj-y := irq.o setup.o clk.o prom.o devices.o obj-$(CONFIG_EARLY_PRINTK) += early_printk.o obj-$(CONFIG_SOC_TYPE_XWAY) += xway/ +obj-$(CONFIG_SOC_FALCON) += falcon/ diff --git a/arch/mips/lantiq/Platform b/arch/mips/lantiq/Platform index f3dff05..b3ec498 100644 --- a/arch/mips/lantiq/Platform +++ b/arch/mips/lantiq/Platform @@ -6,3 +6,4 @@ platform-$(CONFIG_LANTIQ) += lantiq/ cflags-$(CONFIG_LANTIQ) += -I$(srctree)/arch/mips/include/asm/mach-lantiq load-$(CONFIG_LANTIQ) = 0xffffffff80002000 cflags-$(CONFIG_SOC_TYPE_XWAY) += -I$(srctree)/arch/mips/include/asm/mach-lantiq/xway +cflags-$(CONFIG_SOC_FALCON) += -I$(srctree)/arch/mips/include/asm/mach-lantiq/falcon diff --git a/arch/mips/lantiq/falcon/Makefile b/arch/mips/lantiq/falcon/Makefile new file mode 100644 index 0000000..e9c7455 --- /dev/null +++ b/arch/mips/lantiq/falcon/Makefile @@ -0,0 +1 @@ +obj-y := clk.o prom.o reset.o sysctrl.o devices.o diff --git a/arch/mips/lantiq/falcon/clk.c b/arch/mips/lantiq/falcon/clk.c new file mode 100644 index 0000000..afe1b52 --- /dev/null +++ b/arch/mips/lantiq/falcon/clk.c @@ -0,0 +1,44 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2011 Thomas Langer + * Copyright (C) 2011 John Crispin + */ + +#include +#include + +#include + +#include "devices.h" + +/* CPU0 Clock Control Register */ +#define LTQ_SYS1_CPU0CC 0x0040 +/* clock divider bit */ +#define LTQ_CPU0CC_CPUDIV 0x0001 + +unsigned int +ltq_get_io_region_clock(void) +{ + return CLOCK_200M; +} +EXPORT_SYMBOL(ltq_get_io_region_clock); + +unsigned int +ltq_get_cpu_hz(void) +{ + if (ltq_sys1_r32(LTQ_SYS1_CPU0CC) & LTQ_CPU0CC_CPUDIV) + return CLOCK_200M; + else + return CLOCK_400M; +} +EXPORT_SYMBOL(ltq_get_cpu_hz); + +unsigned int +ltq_get_fpi_hz(void) +{ + return CLOCK_100M; +} +EXPORT_SYMBOL(ltq_get_fpi_hz); diff --git a/arch/mips/lantiq/falcon/devices.c b/arch/mips/lantiq/falcon/devices.c new file mode 100644 index 0000000..c4606f2 --- /dev/null +++ b/arch/mips/lantiq/falcon/devices.c @@ -0,0 +1,87 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2011 Thomas Langer + * Copyright (C) 2011 John Crispin + */ + +#include +#include + +#include + +#include "devices.h" + +/* nand flash */ +/* address lines used for NAND control signals */ +#define NAND_ADDR_ALE 0x10000 +#define NAND_ADDR_CLE 0x20000 +/* Ready/Busy Status */ +#define MODCON_STS 0x0002 +/* Ready/Busy Status Edge */ +#define MODCON_STSEDGE 0x0004 + +static const char *part_probes[] = { "cmdlinepart", NULL }; + +static int +falcon_nand_ready(struct mtd_info *mtd) +{ + u32 modcon = ltq_ebu_r32(LTQ_EBU_MODCON); + + return (((modcon & (MODCON_STS | MODCON_STSEDGE)) == + (MODCON_STS | MODCON_STSEDGE))); +} + +static void +falcon_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) +{ + struct nand_chip *this = mtd->priv; + unsigned long nandaddr = (unsigned long) this->IO_ADDR_W; + + if (ctrl & NAND_CTRL_CHANGE) { + nandaddr &= ~(NAND_ADDR_ALE | NAND_ADDR_CLE); + + if (ctrl & NAND_CLE) + nandaddr |= NAND_ADDR_CLE; + if (ctrl & NAND_ALE) + nandaddr |= NAND_ADDR_ALE; + + this->IO_ADDR_W = (void __iomem *) nandaddr; + } + + if (cmd != NAND_CMD_NONE) + writeb(cmd, this->IO_ADDR_W); +} + +static struct platform_nand_data falcon_flash_nand_data = { + .chip = { + .nr_chips = 1, + .chip_delay = 25, + .part_probe_types = part_probes, + }, + .ctrl = { + .cmd_ctrl = falcon_hwcontrol, + .dev_ready = falcon_nand_ready, + } +}; + +static struct resource ltq_nand_res = + MEM_RES("nand", LTQ_FLASH_START, LTQ_FLASH_MAX); + +static struct platform_device ltq_flash_nand = { + .name = "gen_nand", + .id = -1, + .num_resources = 1, + .resource = <q_nand_res, + .dev = { + .platform_data = &falcon_flash_nand_data, + }, +}; + +void __init +falcon_register_nand(void) +{ + platform_device_register(<q_flash_nand); +} diff --git a/arch/mips/lantiq/falcon/devices.h b/arch/mips/lantiq/falcon/devices.h new file mode 100644 index 0000000..e802a7c --- /dev/null +++ b/arch/mips/lantiq/falcon/devices.h @@ -0,0 +1,18 @@ +/* + * 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. + * + * Copyright (C) 2011 Thomas Langer + * Copyright (C) 2011 John Crispin + */ + +#ifndef _FALCON_DEVICES_H__ +#define _FALCON_DEVICES_H__ + +#include "../devices.h" + +extern void falcon_register_nand(void); + +#endif diff --git a/arch/mips/lantiq/falcon/prom.c b/arch/mips/lantiq/falcon/prom.c new file mode 100644 index 0000000..b50d6f9 --- /dev/null +++ b/arch/mips/lantiq/falcon/prom.c @@ -0,0 +1,93 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2011 Thomas Langer + * Copyright (C) 2011 John Crispin + */ + +#include + +#include "devices.h" + +#include "../prom.h" + +#define SOC_FALCON "Falcon" +#define SOC_FALCON_D "Falcon-D" +#define SOC_FALCON_V "Falcon-V" +#define SOC_FALCON_M "Falcon-M" + +#define PART_SHIFT 12 +#define PART_MASK 0x0FFFF000 +#define REV_SHIFT 28 +#define REV_MASK 0xF0000000 +#define SREV_SHIFT 22 +#define SREV_MASK 0x03C00000 +#define TYPE_SHIFT 26 +#define TYPE_MASK 0x3C000000 + +#define MUXC_SIF_RX_PIN 112 +#define MUXC_SIF_TX_PIN 113 + +/* this parameter allows us enable/disable asc1 via commandline */ +static int register_asc1; +static int __init +ltq_parse_asc1(char *p) +{ + register_asc1 = 1; + return 0; +} +__setup("use_asc1", ltq_parse_asc1); + +void __init +ltq_soc_setup(void) +{ + ltq_register_asc(0); + ltq_register_wdt(); + falcon_register_gpio(); + if (register_asc1) { + ltq_register_asc(1); + if (ltq_gpio_request(MUXC_SIF_RX_PIN, 3, 0, "asc1-rx")) + pr_err("failed to request asc1-rx"); + if (ltq_gpio_request(MUXC_SIF_TX_PIN, 3, 1, "asc1-tx")) + pr_err("failed to request asc1-tx"); + ltq_sysctl_activate(SYSCTL_SYS1, ACTS_ASC1_ACT); + } +} + +void __init +ltq_soc_detect(struct ltq_soc_info *i) +{ + u32 type; + i->partnum = (ltq_r32(LTQ_FALCON_CHIPID) & PART_MASK) >> PART_SHIFT; + i->rev = (ltq_r32(LTQ_FALCON_CHIPID) & REV_MASK) >> REV_SHIFT; + i->srev = ((ltq_r32(LTQ_FALCON_CHIPCONF) & SREV_MASK) >> SREV_SHIFT); + sprintf(i->rev_type, "%c%d%d", (i->srev & 0x4) ? ('B') : ('A'), + i->rev & 0x7, (i->srev & 0x3) + 1); + + switch (i->partnum) { + case SOC_ID_FALCON: + type = (ltq_r32(LTQ_FALCON_CHIPTYPE) & TYPE_MASK) >> TYPE_SHIFT; + switch (type) { + case 0: + i->name = SOC_FALCON_D; + break; + case 1: + i->name = SOC_FALCON_V; + break; + case 2: + i->name = SOC_FALCON_M; + break; + default: + i->name = SOC_FALCON; + break; + } + i->type = SOC_TYPE_FALCON; + break; + + default: + unreachable(); + break; + } +} diff --git a/arch/mips/lantiq/falcon/reset.c b/arch/mips/lantiq/falcon/reset.c new file mode 100644 index 0000000..cbcadc5 --- /dev/null +++ b/arch/mips/lantiq/falcon/reset.c @@ -0,0 +1,87 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2011 Thomas Langer + * Copyright (C) 2011 John Crispin + */ + +#include +#include +#include +#include +#include + +#include + +/* CPU0 Reset Source Register */ +#define LTQ_SYS1_CPU0RS 0x0040 +/* reset cause mask */ +#define LTQ_CPU0RS_MASK 0x0003 + +int +ltq_reset_cause(void) +{ + return ltq_sys1_r32(LTQ_SYS1_CPU0RS) & LTQ_CPU0RS_MASK; +} +EXPORT_SYMBOL_GPL(ltq_reset_cause); + +#define BOOT_REG_BASE (KSEG1 | 0x1F200000) +#define BOOT_PW1_REG (BOOT_REG_BASE | 0x20) +#define BOOT_PW2_REG (BOOT_REG_BASE | 0x24) +#define BOOT_PW1 0x4C545100 +#define BOOT_PW2 0x0051544C + +#define WDT_REG_BASE (KSEG1 | 0x1F8803F0) +#define WDT_PW1 0x00BE0000 +#define WDT_PW2 0x00DC0000 + +static void +ltq_machine_restart(char *command) +{ + pr_notice("System restart\n"); + local_irq_disable(); + + /* reboot magic */ + ltq_w32(BOOT_PW1, (void *)BOOT_PW1_REG); /* 'LTQ\0' */ + ltq_w32(BOOT_PW2, (void *)BOOT_PW2_REG); /* '\0QTL' */ + ltq_w32(0, (void *)BOOT_REG_BASE); /* reset Bootreg RVEC */ + + /* watchdog magic */ + ltq_w32(WDT_PW1, (void *)WDT_REG_BASE); + ltq_w32(WDT_PW2 | + (0x3 << 26) | /* PWL */ + (0x2 << 24) | /* CLKDIV */ + (0x1 << 31) | /* enable */ + (1), /* reload */ + (void *)WDT_REG_BASE); + unreachable(); +} + +static void +ltq_machine_halt(void) +{ + pr_notice("System halted.\n"); + local_irq_disable(); + unreachable(); +} + +static void +ltq_machine_power_off(void) +{ + pr_notice("Please turn off the power now.\n"); + local_irq_disable(); + unreachable(); +} + +static int __init +mips_reboot_setup(void) +{ + _machine_restart = ltq_machine_restart; + _machine_halt = ltq_machine_halt; + pm_power_off = ltq_machine_power_off; + return 0; +} + +arch_initcall(mips_reboot_setup); diff --git a/arch/mips/lantiq/falcon/sysctrl.c b/arch/mips/lantiq/falcon/sysctrl.c new file mode 100644 index 0000000..905a142 --- /dev/null +++ b/arch/mips/lantiq/falcon/sysctrl.c @@ -0,0 +1,183 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2011 Thomas Langer + * Copyright (C) 2011 John Crispin + */ + +#include +#include +#include + +#include + +#include "devices.h" + +/* infrastructure control register */ +#define SYS1_INFRAC 0x00bc +/* Configuration fuses for drivers and pll */ +#define STATUS_CONFIG 0x0040 + +/* GPE frequency selection */ +#define GPPC_OFFSET 24 +#define GPEFREQ_MASK 0x00000C0 +#define GPEFREQ_OFFSET 10 +/* Clock status register */ +#define LTQ_SYSCTL_CLKS 0x0000 +/* Clock enable register */ +#define LTQ_SYSCTL_CLKEN 0x0004 +/* Clock clear register */ +#define LTQ_SYSCTL_CLKCLR 0x0008 +/* Activation Status Register */ +#define LTQ_SYSCTL_ACTS 0x0020 +/* Activation Register */ +#define LTQ_SYSCTL_ACT 0x0024 +/* Deactivation Register */ +#define LTQ_SYSCTL_DEACT 0x0028 +/* reboot Register */ +#define LTQ_SYSCTL_RBT 0x002c + +static struct resource ltq_sysctl_res[] = { + MEM_RES("sys1", LTQ_SYS1_BASE_ADDR, LTQ_SYS1_SIZE), + MEM_RES("syseth", LTQ_SYS_ETH_BASE_ADDR, LTQ_SYS_ETH_SIZE), + MEM_RES("sysgpe", LTQ_SYS_GPE_BASE_ADDR, LTQ_SYS_GPE_SIZE), +}; + +static struct resource ltq_status_res = + MEM_RES("status", LTQ_STATUS_BASE_ADDR, LTQ_STATUS_SIZE); +static struct resource ltq_ebu_res = + MEM_RES("ebu", LTQ_EBU_BASE_ADDR, LTQ_EBU_SIZE); + +static void __iomem *ltq_sysctl[3]; +static void __iomem *ltq_status_membase; +void __iomem *ltq_sys1_membase; +void __iomem *ltq_ebu_membase; + +#define ltq_reg_w32(m, x, y) ltq_w32((x), ltq_sysctl[m] + (y)) +#define ltq_reg_r32(m, x) ltq_r32(ltq_sysctl[m] + (x)) +#define ltq_reg_w32_mask(m, clear, set, reg) \ + ltq_reg_w32(m, (ltq_reg_r32(m, reg) & ~(clear)) | (set), reg) + +#define ltq_status_w32(x, y) ltq_w32((x), ltq_status_membase + (y)) +#define ltq_status_r32(x) ltq_r32(ltq_status_membase + (x)) + +static inline void +ltq_sysctl_wait(int module, unsigned int mask, + unsigned int test, unsigned int reg) +{ + int err = 1000000; + + do {} while (--err && ((ltq_reg_r32(module, reg) + & mask) != test)); + if (!err) + pr_err("module de/activation failed %d %08X %08X\n", + module, mask, test); +} + +void +ltq_sysctl_activate(int module, unsigned int mask) +{ + if (module > SYSCTL_SYSGPE) + return; + + ltq_reg_w32(module, mask, LTQ_SYSCTL_CLKEN); + ltq_reg_w32(module, mask, LTQ_SYSCTL_ACT); + ltq_sysctl_wait(module, mask, mask, LTQ_SYSCTL_ACTS); +} +EXPORT_SYMBOL(ltq_sysctl_activate); + +void +ltq_sysctl_deactivate(int module, unsigned int mask) +{ + if (module > SYSCTL_SYSGPE) + return; + + ltq_reg_w32(module, mask, LTQ_SYSCTL_CLKCLR); + ltq_reg_w32(module, mask, LTQ_SYSCTL_DEACT); + ltq_sysctl_wait(module, mask, 0, LTQ_SYSCTL_ACTS); +} +EXPORT_SYMBOL(ltq_sysctl_deactivate); + +void +ltq_sysctl_clken(int module, unsigned int mask) +{ + if (module > SYSCTL_SYSGPE) + return; + + ltq_reg_w32(module, mask, LTQ_SYSCTL_CLKEN); + ltq_sysctl_wait(module, mask, mask, LTQ_SYSCTL_CLKS); +} +EXPORT_SYMBOL(ltq_sysctl_clken); + +void +ltq_sysctl_clkdis(int module, unsigned int mask) +{ + if (module > SYSCTL_SYSGPE) + return; + + ltq_reg_w32(module, mask, LTQ_SYSCTL_CLKCLR); + ltq_sysctl_wait(module, mask, 0, LTQ_SYSCTL_CLKS); +} +EXPORT_SYMBOL(ltq_sysctl_clkdis); + +void +ltq_sysctl_reboot(int module, unsigned int mask) +{ + unsigned int act; + + if (module > SYSCTL_SYSGPE) + return; + + act = ltq_reg_r32(module, LTQ_SYSCTL_ACT); + if ((~act & mask) != 0) + ltq_sysctl_activate(module, ~act & mask); + ltq_reg_w32(module, act & mask, LTQ_SYSCTL_RBT); + ltq_sysctl_wait(module, mask, mask, LTQ_SYSCTL_ACTS); +} +EXPORT_SYMBOL(ltq_sysctl_reboot); + +/* enable the ONU core */ +static void +ltq_gpe_enable(void) +{ + unsigned int freq; + unsigned int status; + + /* if if the clock is already enabled */ + status = ltq_reg_r32(SYSCTL_SYS1, SYS1_INFRAC); + if (status & (1 << (GPPC_OFFSET + 1))) + return; + + if (ltq_status_r32(STATUS_CONFIG) == 0) + freq = 1; /* use 625MHz on unfused chip */ + else + freq = (ltq_status_r32(STATUS_CONFIG) & + GPEFREQ_MASK) >> + GPEFREQ_OFFSET; + + /* apply new frequency */ + ltq_reg_w32_mask(SYSCTL_SYS1, 7 << (GPPC_OFFSET + 1), + freq << (GPPC_OFFSET + 2) , SYS1_INFRAC); + udelay(1); + + /* enable new frequency */ + ltq_reg_w32_mask(SYSCTL_SYS1, 0, 1 << (GPPC_OFFSET + 1), SYS1_INFRAC); + udelay(1); +} + +void __init +ltq_soc_init(void) +{ + int i; + + for (i = 0; i < 3; i++) + ltq_sysctl[i] = ltq_remap_resource(<q_sysctl_res[i]); + + ltq_sys1_membase = ltq_sysctl[0]; + ltq_status_membase = ltq_remap_resource(<q_status_res); + ltq_ebu_membase = ltq_remap_resource(<q_ebu_res); + + ltq_gpe_enable(); +} -- 1.7.9.1