[PATCH] mfd: SM501 core driver

This driver provides the core functionality of the SM501, which is a
multi-function chip including two framebuffers, video acceleration, USB,
and many other peripheral blocks.

The driver exports a number of entries for the peripheral drivers to use.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Vincent Sanders <vince@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Ben Dooks 2007-02-20 13:58:01 -08:00 committed by Linus Torvalds
parent 60e114d113
commit b6d6454fdb
5 changed files with 1691 additions and 0 deletions

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# Multifunction miscellaneous devices
#
menu "Multifunction device drivers"
config MFD_SM501
tristate "Support for Silicon Motion SM501"
---help---
This is the core driver for the Silicon Motion SM501 multimedia
companion chip. This device is a multifunction device which may
provide numerous interfaces including USB host controller USB gadget,
Asyncronous Serial ports, Audio functions and a dual display video
interface. The device may be connected by PCI or local bus with
varying functions enabled.
endmenu
menu "Multimedia Capabilities Port drivers"
depends on ARCH_SA1100

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# Makefile for multifunction miscellaneous devices
#
obj-$(CONFIG_MFD_SM501) += sm501.o
obj-$(CONFIG_MCP) += mcp-core.o
obj-$(CONFIG_MCP_SA11X0) += mcp-sa11x0.o
obj-$(CONFIG_MCP_UCB1200) += ucb1x00-core.o

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drivers/mfd/sm501.c Normal file

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include/linux/sm501-regs.h Normal file
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/* sm501-regs.h
*
* Copyright 2006 Simtec Electronics
*
* 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.
*
* Silicon Motion SM501 register definitions
*/
/* System Configuration area */
/* System config base */
#define SM501_SYS_CONFIG (0x000000)
/* config 1 */
#define SM501_SYSTEM_CONTROL (0x000000)
#define SM501_MISC_CONTROL (0x000004)
#define SM501_MISC_BUS_SH (0x0)
#define SM501_MISC_BUS_PCI (0x1)
#define SM501_MISC_BUS_XSCALE (0x2)
#define SM501_MISC_BUS_NEC (0x6)
#define SM501_MISC_BUS_MASK (0x7)
#define SM501_MISC_VR_62MB (1<<3)
#define SM501_MISC_CDR_RESET (1<<7)
#define SM501_MISC_USB_LB (1<<8)
#define SM501_MISC_USB_SLAVE (1<<9)
#define SM501_MISC_BL_1 (1<<10)
#define SM501_MISC_MC (1<<11)
#define SM501_MISC_DAC_POWER (1<<12)
#define SM501_MISC_IRQ_INVERT (1<<16)
#define SM501_MISC_SH (1<<17)
#define SM501_MISC_HOLD_EMPTY (0<<18)
#define SM501_MISC_HOLD_8 (1<<18)
#define SM501_MISC_HOLD_16 (2<<18)
#define SM501_MISC_HOLD_24 (3<<18)
#define SM501_MISC_HOLD_32 (4<<18)
#define SM501_MISC_HOLD_MASK (7<<18)
#define SM501_MISC_FREQ_12 (1<<24)
#define SM501_MISC_PNL_24BIT (1<<25)
#define SM501_MISC_8051_LE (1<<26)
#define SM501_GPIO31_0_CONTROL (0x000008)
#define SM501_GPIO63_32_CONTROL (0x00000C)
#define SM501_DRAM_CONTROL (0x000010)
/* command list */
#define SM501_ARBTRTN_CONTROL (0x000014)
/* command list */
#define SM501_COMMAND_LIST_STATUS (0x000024)
/* interrupt debug */
#define SM501_RAW_IRQ_STATUS (0x000028)
#define SM501_RAW_IRQ_CLEAR (0x000028)
#define SM501_IRQ_STATUS (0x00002C)
#define SM501_IRQ_MASK (0x000030)
#define SM501_DEBUG_CONTROL (0x000034)
/* power management */
#define SM501_CURRENT_GATE (0x000038)
#define SM501_CURRENT_CLOCK (0x00003C)
#define SM501_POWER_MODE_0_GATE (0x000040)
#define SM501_POWER_MODE_0_CLOCK (0x000044)
#define SM501_POWER_MODE_1_GATE (0x000048)
#define SM501_POWER_MODE_1_CLOCK (0x00004C)
#define SM501_SLEEP_MODE_GATE (0x000050)
#define SM501_POWER_MODE_CONTROL (0x000054)
/* power gates for units within the 501 */
#define SM501_GATE_HOST (0)
#define SM501_GATE_MEMORY (1)
#define SM501_GATE_DISPLAY (2)
#define SM501_GATE_2D_ENGINE (3)
#define SM501_GATE_CSC (4)
#define SM501_GATE_ZVPORT (5)
#define SM501_GATE_GPIO (6)
#define SM501_GATE_UART0 (7)
#define SM501_GATE_UART1 (8)
#define SM501_GATE_SSP (10)
#define SM501_GATE_USB_HOST (11)
#define SM501_GATE_USB_GADGET (12)
#define SM501_GATE_UCONTROLLER (17)
#define SM501_GATE_AC97 (18)
/* panel clock */
#define SM501_CLOCK_P2XCLK (24)
/* crt clock */
#define SM501_CLOCK_V2XCLK (16)
/* main clock */
#define SM501_CLOCK_MCLK (8)
/* SDRAM controller clock */
#define SM501_CLOCK_M1XCLK (0)
/* config 2 */
#define SM501_PCI_MASTER_BASE (0x000058)
#define SM501_ENDIAN_CONTROL (0x00005C)
#define SM501_DEVICEID (0x000060)
/* 0x050100A0 */
#define SM501_PLLCLOCK_COUNT (0x000064)
#define SM501_MISC_TIMING (0x000068)
#define SM501_CURRENT_SDRAM_CLOCK (0x00006C)
/* GPIO base */
#define SM501_GPIO (0x010000)
#define SM501_GPIO_DATA_LOW (0x00)
#define SM501_GPIO_DATA_HIGH (0x04)
#define SM501_GPIO_DDR_LOW (0x08)
#define SM501_GPIO_DDR_HIGH (0x0C)
#define SM501_GPIO_IRQ_SETUP (0x10)
#define SM501_GPIO_IRQ_STATUS (0x14)
#define SM501_GPIO_IRQ_RESET (0x14)
/* I2C controller base */
#define SM501_I2C (0x010040)
#define SM501_I2C_BYTE_COUNT (0x00)
#define SM501_I2C_CONTROL (0x01)
#define SM501_I2C_STATUS (0x02)
#define SM501_I2C_RESET (0x02)
#define SM501_I2C_SLAVE_ADDRESS (0x03)
#define SM501_I2C_DATA (0x04)
/* SSP base */
#define SM501_SSP (0x020000)
/* Uart 0 base */
#define SM501_UART0 (0x030000)
/* Uart 1 base */
#define SM501_UART1 (0x030020)
/* USB host port base */
#define SM501_USB_HOST (0x040000)
/* USB slave/gadget base */
#define SM501_USB_GADGET (0x060000)
/* USB slave/gadget data port base */
#define SM501_USB_GADGET_DATA (0x070000)
/* Display contoller/video engine base */
#define SM501_DC (0x080000)
/* common defines for the SM501 address registers */
#define SM501_ADDR_FLIP (1<<31)
#define SM501_ADDR_EXT (1<<27)
#define SM501_ADDR_CS1 (1<<26)
#define SM501_ADDR_MASK (0x3f << 26)
#define SM501_FIFO_MASK (0x3 << 16)
#define SM501_FIFO_1 (0x0 << 16)
#define SM501_FIFO_3 (0x1 << 16)
#define SM501_FIFO_7 (0x2 << 16)
#define SM501_FIFO_11 (0x3 << 16)
/* common registers for panel and the crt */
#define SM501_OFF_DC_H_TOT (0x000)
#define SM501_OFF_DC_V_TOT (0x008)
#define SM501_OFF_DC_H_SYNC (0x004)
#define SM501_OFF_DC_V_SYNC (0x00C)
#define SM501_DC_PANEL_CONTROL (0x000)
#define SM501_DC_PANEL_CONTROL_FPEN (1<<27)
#define SM501_DC_PANEL_CONTROL_BIAS (1<<26)
#define SM501_DC_PANEL_CONTROL_DATA (1<<25)
#define SM501_DC_PANEL_CONTROL_VDD (1<<24)
#define SM501_DC_PANEL_CONTROL_DP (1<<23)
#define SM501_DC_PANEL_CONTROL_TFT_888 (0<<21)
#define SM501_DC_PANEL_CONTROL_TFT_333 (1<<21)
#define SM501_DC_PANEL_CONTROL_TFT_444 (2<<21)
#define SM501_DC_PANEL_CONTROL_DE (1<<20)
#define SM501_DC_PANEL_CONTROL_LCD_TFT (0<<18)
#define SM501_DC_PANEL_CONTROL_LCD_STN8 (1<<18)
#define SM501_DC_PANEL_CONTROL_LCD_STN12 (2<<18)
#define SM501_DC_PANEL_CONTROL_CP (1<<14)
#define SM501_DC_PANEL_CONTROL_VSP (1<<13)
#define SM501_DC_PANEL_CONTROL_HSP (1<<12)
#define SM501_DC_PANEL_CONTROL_CK (1<<9)
#define SM501_DC_PANEL_CONTROL_TE (1<<8)
#define SM501_DC_PANEL_CONTROL_VPD (1<<7)
#define SM501_DC_PANEL_CONTROL_VP (1<<6)
#define SM501_DC_PANEL_CONTROL_HPD (1<<5)
#define SM501_DC_PANEL_CONTROL_HP (1<<4)
#define SM501_DC_PANEL_CONTROL_GAMMA (1<<3)
#define SM501_DC_PANEL_CONTROL_EN (1<<2)
#define SM501_DC_PANEL_CONTROL_8BPP (0<<0)
#define SM501_DC_PANEL_CONTROL_16BPP (1<<0)
#define SM501_DC_PANEL_CONTROL_32BPP (2<<0)
#define SM501_DC_PANEL_PANNING_CONTROL (0x004)
#define SM501_DC_PANEL_COLOR_KEY (0x008)
#define SM501_DC_PANEL_FB_ADDR (0x00C)
#define SM501_DC_PANEL_FB_OFFSET (0x010)
#define SM501_DC_PANEL_FB_WIDTH (0x014)
#define SM501_DC_PANEL_FB_HEIGHT (0x018)
#define SM501_DC_PANEL_TL_LOC (0x01C)
#define SM501_DC_PANEL_BR_LOC (0x020)
#define SM501_DC_PANEL_H_TOT (0x024)
#define SM501_DC_PANEL_H_SYNC (0x028)
#define SM501_DC_PANEL_V_TOT (0x02C)
#define SM501_DC_PANEL_V_SYNC (0x030)
#define SM501_DC_PANEL_CUR_LINE (0x034)
#define SM501_DC_VIDEO_CONTROL (0x040)
#define SM501_DC_VIDEO_FB0_ADDR (0x044)
#define SM501_DC_VIDEO_FB_WIDTH (0x048)
#define SM501_DC_VIDEO_FB0_LAST_ADDR (0x04C)
#define SM501_DC_VIDEO_TL_LOC (0x050)
#define SM501_DC_VIDEO_BR_LOC (0x054)
#define SM501_DC_VIDEO_SCALE (0x058)
#define SM501_DC_VIDEO_INIT_SCALE (0x05C)
#define SM501_DC_VIDEO_YUV_CONSTANTS (0x060)
#define SM501_DC_VIDEO_FB1_ADDR (0x064)
#define SM501_DC_VIDEO_FB1_LAST_ADDR (0x068)
#define SM501_DC_VIDEO_ALPHA_CONTROL (0x080)
#define SM501_DC_VIDEO_ALPHA_FB_ADDR (0x084)
#define SM501_DC_VIDEO_ALPHA_FB_OFFSET (0x088)
#define SM501_DC_VIDEO_ALPHA_FB_LAST_ADDR (0x08C)
#define SM501_DC_VIDEO_ALPHA_TL_LOC (0x090)
#define SM501_DC_VIDEO_ALPHA_BR_LOC (0x094)
#define SM501_DC_VIDEO_ALPHA_SCALE (0x098)
#define SM501_DC_VIDEO_ALPHA_INIT_SCALE (0x09C)
#define SM501_DC_VIDEO_ALPHA_CHROMA_KEY (0x0A0)
#define SM501_DC_VIDEO_ALPHA_COLOR_LOOKUP (0x0A4)
#define SM501_DC_PANEL_HWC_BASE (0x0F0)
#define SM501_DC_PANEL_HWC_ADDR (0x0F0)
#define SM501_DC_PANEL_HWC_LOC (0x0F4)
#define SM501_DC_PANEL_HWC_COLOR_1_2 (0x0F8)
#define SM501_DC_PANEL_HWC_COLOR_3 (0x0FC)
#define SM501_HWC_EN (1<<31)
#define SM501_OFF_HWC_ADDR (0x00)
#define SM501_OFF_HWC_LOC (0x04)
#define SM501_OFF_HWC_COLOR_1_2 (0x08)
#define SM501_OFF_HWC_COLOR_3 (0x0C)
#define SM501_DC_ALPHA_CONTROL (0x100)
#define SM501_DC_ALPHA_FB_ADDR (0x104)
#define SM501_DC_ALPHA_FB_OFFSET (0x108)
#define SM501_DC_ALPHA_TL_LOC (0x10C)
#define SM501_DC_ALPHA_BR_LOC (0x110)
#define SM501_DC_ALPHA_CHROMA_KEY (0x114)
#define SM501_DC_ALPHA_COLOR_LOOKUP (0x118)
#define SM501_DC_CRT_CONTROL (0x200)
#define SM501_DC_CRT_CONTROL_TVP (1<<15)
#define SM501_DC_CRT_CONTROL_CP (1<<14)
#define SM501_DC_CRT_CONTROL_VSP (1<<13)
#define SM501_DC_CRT_CONTROL_HSP (1<<12)
#define SM501_DC_CRT_CONTROL_VS (1<<11)
#define SM501_DC_CRT_CONTROL_BLANK (1<<10)
#define SM501_DC_CRT_CONTROL_SEL (1<<9)
#define SM501_DC_CRT_CONTROL_TE (1<<8)
#define SM501_DC_CRT_CONTROL_PIXEL_MASK (0xF << 4)
#define SM501_DC_CRT_CONTROL_GAMMA (1<<3)
#define SM501_DC_CRT_CONTROL_ENABLE (1<<2)
#define SM501_DC_CRT_CONTROL_8BPP (0<<0)
#define SM501_DC_CRT_CONTROL_16BPP (1<<0)
#define SM501_DC_CRT_CONTROL_32BPP (2<<0)
#define SM501_DC_CRT_FB_ADDR (0x204)
#define SM501_DC_CRT_FB_OFFSET (0x208)
#define SM501_DC_CRT_H_TOT (0x20C)
#define SM501_DC_CRT_H_SYNC (0x210)
#define SM501_DC_CRT_V_TOT (0x214)
#define SM501_DC_CRT_V_SYNC (0x218)
#define SM501_DC_CRT_SIGNATURE_ANALYZER (0x21C)
#define SM501_DC_CRT_CUR_LINE (0x220)
#define SM501_DC_CRT_MONITOR_DETECT (0x224)
#define SM501_DC_CRT_HWC_BASE (0x230)
#define SM501_DC_CRT_HWC_ADDR (0x230)
#define SM501_DC_CRT_HWC_LOC (0x234)
#define SM501_DC_CRT_HWC_COLOR_1_2 (0x238)
#define SM501_DC_CRT_HWC_COLOR_3 (0x23C)
#define SM501_DC_PANEL_PALETTE (0x400)
#define SM501_DC_VIDEO_PALETTE (0x800)
#define SM501_DC_CRT_PALETTE (0xC00)
/* Zoom Video port base */
#define SM501_ZVPORT (0x090000)
/* AC97/I2S base */
#define SM501_AC97 (0x0A0000)
/* 8051 micro controller base */
#define SM501_UCONTROLLER (0x0B0000)
/* 8051 micro controller SRAM base */
#define SM501_UCONTROLLER_SRAM (0x0C0000)
/* DMA base */
#define SM501_DMA (0x0D0000)
/* 2d engine base */
#define SM501_2D_ENGINE (0x100000)
#define SM501_2D_SOURCE (0x00)
#define SM501_2D_DESTINATION (0x04)
#define SM501_2D_DIMENSION (0x08)
#define SM501_2D_CONTROL (0x0C)
#define SM501_2D_PITCH (0x10)
#define SM501_2D_FOREGROUND (0x14)
#define SM501_2D_BACKGROUND (0x18)
#define SM501_2D_STRETCH (0x1C)
#define SM501_2D_COLOR_COMPARE (0x20)
#define SM501_2D_COLOR_COMPARE_MASK (0x24)
#define SM501_2D_MASK (0x28)
#define SM501_2D_CLIP_TL (0x2C)
#define SM501_2D_CLIP_BR (0x30)
#define SM501_2D_MONO_PATTERN_LOW (0x34)
#define SM501_2D_MONO_PATTERN_HIGH (0x38)
#define SM501_2D_WINDOW_WIDTH (0x3C)
#define SM501_2D_SOURCE_BASE (0x40)
#define SM501_2D_DESTINATION_BASE (0x44)
#define SM501_2D_ALPHA (0x48)
#define SM501_2D_WRAP (0x4C)
#define SM501_2D_STATUS (0x50)
#define SM501_CSC_Y_SOURCE_BASE (0xC8)
#define SM501_CSC_CONSTANTS (0xCC)
#define SM501_CSC_Y_SOURCE_X (0xD0)
#define SM501_CSC_Y_SOURCE_Y (0xD4)
#define SM501_CSC_U_SOURCE_BASE (0xD8)
#define SM501_CSC_V_SOURCE_BASE (0xDC)
#define SM501_CSC_SOURCE_DIMENSION (0xE0)
#define SM501_CSC_SOURCE_PITCH (0xE4)
#define SM501_CSC_DESTINATION (0xE8)
#define SM501_CSC_DESTINATION_DIMENSION (0xEC)
#define SM501_CSC_DESTINATION_PITCH (0xF0)
#define SM501_CSC_SCALE_FACTOR (0xF4)
#define SM501_CSC_DESTINATION_BASE (0xF8)
#define SM501_CSC_CONTROL (0xFC)
/* 2d engine data port base */
#define SM501_2D_ENGINE_DATA (0x110000)

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/* include/linux/sm501.h
*
* Copyright (c) 2006 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
* Vincent Sanders <vince@simtec.co.uk>
*
* 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
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
extern int sm501_unit_power(struct device *dev,
unsigned int unit, unsigned int to);
extern unsigned long sm501_set_clock(struct device *dev,
int clksrc, unsigned long freq);
extern unsigned long sm501_find_clock(int clksrc, unsigned long req_freq);
/* sm501_misc_control
*
* Modify the SM501's MISC_CONTROL register
*/
extern int sm501_misc_control(struct device *dev,
unsigned long set, unsigned long clear);
/* sm501_modify_reg
*
* Modify a register in the SM501 which may be shared with other
* drivers.
*/
extern unsigned long sm501_modify_reg(struct device *dev,
unsigned long reg,
unsigned long set,
unsigned long clear);
/* sm501_gpio_set
*
* set the state of the given GPIO line
*/
extern void sm501_gpio_set(struct device *dev,
unsigned long gpio,
unsigned int to,
unsigned int dir);
/* sm501_gpio_get
*
* get the state of the given GPIO line
*/
extern unsigned long sm501_gpio_get(struct device *dev,
unsigned long gpio);
/* Platform data definitions */
#define SM501FB_FLAG_USE_INIT_MODE (1<<0)
#define SM501FB_FLAG_DISABLE_AT_EXIT (1<<1)
#define SM501FB_FLAG_USE_HWCURSOR (1<<2)
#define SM501FB_FLAG_USE_HWACCEL (1<<3)
struct sm501_platdata_fbsub {
struct fb_videomode *def_mode;
unsigned int def_bpp;
unsigned long max_mem;
unsigned int flags;
};
enum sm501_fb_routing {
SM501_FB_OWN = 0, /* CRT=>CRT, Panel=>Panel */
SM501_FB_CRT_PANEL = 1, /* Panel=>CRT, Panel=>Panel */
};
/* sm501_platdata_fb flag field bit definitions */
#define SM501_FBPD_SWAP_FB_ENDIAN (1<<0) /* need to endian swap */
/* sm501_platdata_fb
*
* configuration data for the framebuffer driver
*/
struct sm501_platdata_fb {
enum sm501_fb_routing fb_route;
unsigned int flags;
struct sm501_platdata_fbsub *fb_crt;
struct sm501_platdata_fbsub *fb_pnl;
};
/* gpio i2c */
struct sm501_platdata_gpio_i2c {
unsigned int pin_sda;
unsigned int pin_scl;
};
/* sm501_initdata
*
* use for initialising values that may not have been setup
* before the driver is loaded.
*/
struct sm501_reg_init {
unsigned long set;
unsigned long mask;
};
#define SM501_USE_USB_HOST (1<<0)
#define SM501_USE_USB_SLAVE (1<<1)
#define SM501_USE_SSP0 (1<<2)
#define SM501_USE_SSP1 (1<<3)
#define SM501_USE_UART0 (1<<4)
#define SM501_USE_UART1 (1<<5)
#define SM501_USE_FBACCEL (1<<6)
#define SM501_USE_AC97 (1<<7)
#define SM501_USE_I2S (1<<8)
#define SM501_USE_ALL (0xffffffff)
struct sm501_initdata {
struct sm501_reg_init gpio_low;
struct sm501_reg_init gpio_high;
struct sm501_reg_init misc_timing;
struct sm501_reg_init misc_control;
unsigned long devices;
unsigned long mclk; /* non-zero to modify */
unsigned long m1xclk; /* non-zero to modify */
};
/* sm501_init_gpio
*
* default gpio settings
*/
struct sm501_init_gpio {
struct sm501_reg_init gpio_data_low;
struct sm501_reg_init gpio_data_high;
struct sm501_reg_init gpio_ddr_low;
struct sm501_reg_init gpio_ddr_high;
};
/* sm501_platdata
*
* This is passed with the platform device to allow the board
* to control the behaviour of the SM501 driver(s) which attach
* to the device.
*
*/
struct sm501_platdata {
struct sm501_initdata *init;
struct sm501_init_gpio *init_gpiop;
struct sm501_platdata_fb *fb;
struct sm501_platdata_gpio_i2c *gpio_i2c;
unsigned int gpio_i2c_nr;
};