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Diffstat (limited to 'arch/x86/include/asm/geode.h')
| -rw-r--r-- | arch/x86/include/asm/geode.h | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/arch/x86/include/asm/geode.h b/arch/x86/include/asm/geode.h new file mode 100644 index 00000000000..ad3c2ed7548 --- /dev/null +++ b/arch/x86/include/asm/geode.h @@ -0,0 +1,253 @@ +/* + * AMD Geode definitions + * Copyright (C) 2006, Advanced Micro Devices, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of version 2 of the GNU General Public License + * as published by the Free Software Foundation. + */ + +#ifndef _ASM_X86_GEODE_H +#define _ASM_X86_GEODE_H + +#include <asm/processor.h> +#include <linux/io.h> + +/* Generic southbridge functions */ + +#define GEODE_DEV_PMS 0 +#define GEODE_DEV_ACPI 1 +#define GEODE_DEV_GPIO 2 +#define GEODE_DEV_MFGPT 3 + +extern int geode_get_dev_base(unsigned int dev); + +/* Useful macros */ +#define geode_pms_base() geode_get_dev_base(GEODE_DEV_PMS) +#define geode_acpi_base() geode_get_dev_base(GEODE_DEV_ACPI) +#define geode_gpio_base() geode_get_dev_base(GEODE_DEV_GPIO) +#define geode_mfgpt_base() geode_get_dev_base(GEODE_DEV_MFGPT) + +/* MSRS */ + +#define MSR_GLIU_P2D_RO0 0x10000029 + +#define MSR_LX_GLD_MSR_CONFIG 0x48002001 +#define MSR_LX_MSR_PADSEL 0x48002011 /* NOT 0x48000011; the data + * sheet has the wrong value */ +#define MSR_GLCP_SYS_RSTPLL 0x4C000014 +#define MSR_GLCP_DOTPLL 0x4C000015 + +#define MSR_LBAR_SMB 0x5140000B +#define MSR_LBAR_GPIO 0x5140000C +#define MSR_LBAR_MFGPT 0x5140000D +#define MSR_LBAR_ACPI 0x5140000E +#define MSR_LBAR_PMS 0x5140000F + +#define MSR_DIVIL_SOFT_RESET 0x51400017 + +#define MSR_PIC_YSEL_LOW 0x51400020 +#define MSR_PIC_YSEL_HIGH 0x51400021 +#define MSR_PIC_ZSEL_LOW 0x51400022 +#define MSR_PIC_ZSEL_HIGH 0x51400023 +#define MSR_PIC_IRQM_LPC 0x51400025 + +#define MSR_MFGPT_IRQ 0x51400028 +#define MSR_MFGPT_NR 0x51400029 +#define MSR_MFGPT_SETUP 0x5140002B + +#define MSR_LX_SPARE_MSR 0x80000011 /* DC-specific */ + +#define MSR_GX_GLD_MSR_CONFIG 0xC0002001 +#define MSR_GX_MSR_PADSEL 0xC0002011 + +/* Resource Sizes */ + +#define LBAR_GPIO_SIZE 0xFF +#define LBAR_MFGPT_SIZE 0x40 +#define LBAR_ACPI_SIZE 0x40 +#define LBAR_PMS_SIZE 0x80 + +/* ACPI registers (PMS block) */ + +/* + * PM1_EN is only valid when VSA is enabled for 16 bit reads. + * When VSA is not enabled, *always* read both PM1_STS and PM1_EN + * with a 32 bit read at offset 0x0 + */ + +#define PM1_STS 0x00 +#define PM1_EN 0x02 +#define PM1_CNT 0x08 +#define PM2_CNT 0x0C +#define PM_TMR 0x10 +#define PM_GPE0_STS 0x18 +#define PM_GPE0_EN 0x1C + +/* PMC registers (PMS block) */ + +#define PM_SSD 0x00 +#define PM_SCXA 0x04 +#define PM_SCYA 0x08 +#define PM_OUT_SLPCTL 0x0C +#define PM_SCLK 0x10 +#define PM_SED 0x1 +#define PM_SCXD 0x18 +#define PM_SCYD 0x1C +#define PM_IN_SLPCTL 0x20 +#define PM_WKD 0x30 +#define PM_WKXD 0x34 +#define PM_RD 0x38 +#define PM_WKXA 0x3C +#define PM_FSD 0x40 +#define PM_TSD 0x44 +#define PM_PSD 0x48 +#define PM_NWKD 0x4C +#define PM_AWKD 0x50 +#define PM_SSC 0x54 + +/* VSA2 magic values */ + +#define VSA_VRC_INDEX 0xAC1C +#define VSA_VRC_DATA 0xAC1E +#define VSA_VR_UNLOCK 0xFC53 /* unlock virtual register */ +#define VSA_VR_SIGNATURE 0x0003 +#define VSA_VR_MEM_SIZE 0x0200 +#define AMD_VSA_SIG 0x4132 /* signature is ascii 'VSA2' */ +#define GSW_VSA_SIG 0x534d /* General Software signature */ +/* GPIO */ + +#define GPIO_OUTPUT_VAL 0x00 +#define GPIO_OUTPUT_ENABLE 0x04 +#define GPIO_OUTPUT_OPEN_DRAIN 0x08 +#define GPIO_OUTPUT_INVERT 0x0C +#define GPIO_OUTPUT_AUX1 0x10 +#define GPIO_OUTPUT_AUX2 0x14 +#define GPIO_PULL_UP 0x18 +#define GPIO_PULL_DOWN 0x1C +#define GPIO_INPUT_ENABLE 0x20 +#define GPIO_INPUT_INVERT 0x24 +#define GPIO_INPUT_FILTER 0x28 +#define GPIO_INPUT_EVENT_COUNT 0x2C +#define GPIO_READ_BACK 0x30 +#define GPIO_INPUT_AUX1 0x34 +#define GPIO_EVENTS_ENABLE 0x38 +#define GPIO_LOCK_ENABLE 0x3C +#define GPIO_POSITIVE_EDGE_EN 0x40 +#define GPIO_NEGATIVE_EDGE_EN 0x44 +#define GPIO_POSITIVE_EDGE_STS 0x48 +#define GPIO_NEGATIVE_EDGE_STS 0x4C + +#define GPIO_MAP_X 0xE0 +#define GPIO_MAP_Y 0xE4 +#define GPIO_MAP_Z 0xE8 +#define GPIO_MAP_W 0xEC + +static inline u32 geode_gpio(unsigned int nr) +{ + BUG_ON(nr > 28); + return 1 << nr; +} + +extern void geode_gpio_set(u32, unsigned int); +extern void geode_gpio_clear(u32, unsigned int); +extern int geode_gpio_isset(u32, unsigned int); +extern void geode_gpio_setup_event(unsigned int, int, int); +extern void geode_gpio_set_irq(unsigned int, unsigned int); + +static inline void geode_gpio_event_irq(unsigned int gpio, int pair) +{ + geode_gpio_setup_event(gpio, pair, 0); +} + +static inline void geode_gpio_event_pme(unsigned int gpio, int pair) +{ + geode_gpio_setup_event(gpio, pair, 1); +} + +/* Specific geode tests */ + +static inline int is_geode_gx(void) +{ + return ((boot_cpu_data.x86_vendor == X86_VENDOR_NSC) && + (boot_cpu_data.x86 == 5) && + (boot_cpu_data.x86_model == 5)); +} + +static inline int is_geode_lx(void) +{ + return ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) && + (boot_cpu_data.x86 == 5) && + (boot_cpu_data.x86_model == 10)); +} + +static inline int is_geode(void) +{ + return (is_geode_gx() || is_geode_lx()); +} + +#ifdef CONFIG_MGEODE_LX +extern int geode_has_vsa2(void); +#else +static inline int geode_has_vsa2(void) +{ + return 0; +} +#endif + +/* MFGPTs */ + +#define MFGPT_MAX_TIMERS 8 +#define MFGPT_TIMER_ANY (-1) + +#define MFGPT_DOMAIN_WORKING 1 +#define MFGPT_DOMAIN_STANDBY 2 +#define MFGPT_DOMAIN_ANY (MFGPT_DOMAIN_WORKING | MFGPT_DOMAIN_STANDBY) + +#define MFGPT_CMP1 0 +#define MFGPT_CMP2 1 + +#define MFGPT_EVENT_IRQ 0 +#define MFGPT_EVENT_NMI 1 +#define MFGPT_EVENT_RESET 3 + +#define MFGPT_REG_CMP1 0 +#define MFGPT_REG_CMP2 2 +#define MFGPT_REG_COUNTER 4 +#define MFGPT_REG_SETUP 6 + +#define MFGPT_SETUP_CNTEN (1 << 15) +#define MFGPT_SETUP_CMP2 (1 << 14) +#define MFGPT_SETUP_CMP1 (1 << 13) +#define MFGPT_SETUP_SETUP (1 << 12) +#define MFGPT_SETUP_STOPEN (1 << 11) +#define MFGPT_SETUP_EXTEN (1 << 10) +#define MFGPT_SETUP_REVEN (1 << 5) +#define MFGPT_SETUP_CLKSEL (1 << 4) + +static inline void geode_mfgpt_write(int timer, u16 reg, u16 value) +{ + u32 base = geode_get_dev_base(GEODE_DEV_MFGPT); + outw(value, base + reg + (timer * 8)); +} + +static inline u16 geode_mfgpt_read(int timer, u16 reg) +{ + u32 base = geode_get_dev_base(GEODE_DEV_MFGPT); + return inw(base + reg + (timer * 8)); +} + +extern int geode_mfgpt_toggle_event(int timer, int cmp, int event, int enable); +extern int geode_mfgpt_set_irq(int timer, int cmp, int *irq, int enable); +extern int geode_mfgpt_alloc_timer(int timer, int domain); + +#define geode_mfgpt_setup_irq(t, c, i) geode_mfgpt_set_irq((t), (c), (i), 1) +#define geode_mfgpt_release_irq(t, c, i) geode_mfgpt_set_irq((t), (c), (i), 0) + +#ifdef CONFIG_GEODE_MFGPT_TIMER +extern int __init mfgpt_timer_setup(void); +#else +static inline int mfgpt_timer_setup(void) { return 0; } +#endif + +#endif /* _ASM_X86_GEODE_H */ |