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-rw-r--r--include/asm-x86/geode.h209
1 files changed, 209 insertions, 0 deletions
diff --git a/include/asm-x86/geode.h b/include/asm-x86/geode.h
new file mode 100644
index 00000000000..d94898831ba
--- /dev/null
+++ b/include/asm-x86/geode.h
@@ -0,0 +1,209 @@
+/*
+ * 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 GX_GLCP_SYS_RSTPLL 0x4C000014
+
+#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_PIC_YSEL_LOW 0x51400020
+#define MSR_PIC_YSEL_HIGH 0x51400021
+#define MSR_PIC_ZSEL_LOW 0x51400022
+#define MSR_PIC_ZSEL_HIGH 0x51400023
+
+#define MFGPT_IRQ_MSR 0x51400028
+#define MFGPT_NR_MSR 0x51400029
+
+/* 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
+
+/* 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
+
+extern void geode_gpio_set(unsigned int, unsigned int);
+extern void geode_gpio_clear(unsigned int, unsigned int);
+extern int geode_gpio_isset(unsigned int, 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());
+}
+
+/* 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 __init geode_mfgpt_detect(void);
+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, struct module *owner);
+
+#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)
+
+#endif