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/*
* 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_GEODE_H_
#define _ASM_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_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_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 VSA_SIG 0x4132 /* signature is ascii 'VSA2' */
/* 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());
}
/*
* The VSA has virtual registers that we can query for a signature.
*/
static inline int geode_has_vsa2(void)
{
outw(VSA_VR_UNLOCK, VSA_VRC_INDEX);
outw(VSA_VR_SIGNATURE, VSA_VRC_INDEX);
return (inw(VSA_VRC_DATA) == VSA_SIG);
}
/* 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
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