mirror of
https://github.com/u-boot/u-boot.git
synced 2024-11-25 05:04:23 +08:00
1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
378 lines
11 KiB
C
378 lines
11 KiB
C
/* Interface for accessing Gaisler AMBA Plug&Play Bus.
|
|
* The AHB bus can be interfaced with a simpler bus -
|
|
* the APB bus, also freely available in GRLIB at
|
|
* www.gaisler.com.
|
|
*
|
|
* (C) Copyright 2007
|
|
* Daniel Hellstrom, Gaisler Research, daniel@gaisler.com.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#ifndef __AMBAPP_H__
|
|
#define __AMBAPP_H__
|
|
|
|
/* Default location of Plug&Play info
|
|
* normally 0xfffff000 for AHB masters
|
|
* and 0xfffff800 for AHB slaves.
|
|
* Normally no need to change this.
|
|
*/
|
|
#define LEON3_IO_AREA 0xfff00000
|
|
#define LEON3_CONF_AREA 0xff000
|
|
#define LEON3_AHB_SLAVE_CONF_AREA (1 << 11)
|
|
|
|
/* Max devices this software will support */
|
|
#define LEON3_AHB_MASTERS 16
|
|
#define LEON3_AHB_SLAVES 16
|
|
/*#define LEON3_APB_MASTERS 1*/ /* Number of APB buses that has Plug&Play */
|
|
#define LEON3_APB_SLAVES 16 /* Total number of APB slaves per APB bus */
|
|
|
|
/* Vendor codes */
|
|
#define VENDOR_GAISLER 1
|
|
#define VENDOR_PENDER 2
|
|
#define VENDOR_ESA 4
|
|
#define VENDOR_ASTRIUM 6
|
|
#define VENDOR_OPENCHIP 7
|
|
#define VENDOR_OPENCORES 8
|
|
#define VENDOR_CONTRIB 9
|
|
#define VENDOR_EONIC 11
|
|
#define VENDOR_RADIONOR 15
|
|
#define VENDOR_GLEICHMANN 16
|
|
#define VENDOR_MENTA 17
|
|
#define VENDOR_SUN 19
|
|
#define VENDOR_EMBEDDIT 234
|
|
#define VENDOR_CAL 202
|
|
|
|
/* Gaisler Research device id's */
|
|
#define GAISLER_LEON3 0x003
|
|
#define GAISLER_LEON3DSU 0x004
|
|
#define GAISLER_ETHAHB 0x005
|
|
#define GAISLER_APBMST 0x006
|
|
#define GAISLER_AHBUART 0x007
|
|
#define GAISLER_SRCTRL 0x008
|
|
#define GAISLER_SDCTRL 0x009
|
|
#define GAISLER_APBUART 0x00C
|
|
#define GAISLER_IRQMP 0x00D
|
|
#define GAISLER_AHBRAM 0x00E
|
|
#define GAISLER_GPTIMER 0x011
|
|
#define GAISLER_PCITRG 0x012
|
|
#define GAISLER_PCISBRG 0x013
|
|
#define GAISLER_PCIFBRG 0x014
|
|
#define GAISLER_PCITRACE 0x015
|
|
#define GAISLER_PCIDMA 0x016
|
|
#define GAISLER_AHBTRACE 0x017
|
|
#define GAISLER_ETHDSU 0x018
|
|
#define GAISLER_PIOPORT 0x01A
|
|
#define GAISLER_AHBJTAG 0x01c
|
|
#define GAISLER_SPW 0x01f
|
|
#define GAISLER_ATACTRL 0x024
|
|
#define GAISLER_VGA 0x061
|
|
#define GAISLER_KBD 0X060
|
|
#define GAISLER_ETHMAC 0x01D
|
|
#define GAISLER_DDRSPA 0x025
|
|
#define GAISLER_EHCI 0x026
|
|
#define GAISLER_UHCI 0x027
|
|
#define GAISLER_SPW2 0x029
|
|
#define GAISLER_DDR2SPA 0x02E
|
|
#define GAISLER_AHBSTAT 0x052
|
|
#define GAISLER_FTMCTRL 0x054
|
|
|
|
#define GAISLER_L2TIME 0xffd /* internal device: leon2 timer */
|
|
#define GAISLER_L2C 0xffe /* internal device: leon2compat */
|
|
#define GAISLER_PLUGPLAY 0xfff /* internal device: plug & play configarea */
|
|
|
|
/* European Space Agency device id's */
|
|
#define ESA_LEON2 0x2
|
|
#define ESA_MCTRL 0xF
|
|
|
|
/* Opencores device id's */
|
|
#define OPENCORES_PCIBR 0x4
|
|
#define OPENCORES_ETHMAC 0x5
|
|
|
|
/* Vendor codes */
|
|
|
|
/*
|
|
*
|
|
* Macros for manipulating Configuration registers
|
|
*
|
|
*/
|
|
|
|
#define amba_vendor(x) (((x) >> 24) & 0xff)
|
|
|
|
#define amba_device(x) (((x) >> 12) & 0xfff)
|
|
|
|
#define amba_membar_start(mbar) \
|
|
(((mbar) & 0xfff00000) & (((mbar) & 0xfff0) << 16))
|
|
|
|
#define amba_iobar_start(base, iobar) \
|
|
((base) | ((((iobar) & 0xfff00000)>>12) & (((iobar) & 0xfff0)<<4)) )
|
|
|
|
#define amba_irq(conf) ((conf) & 0xf)
|
|
|
|
#define amba_ver(conf) (((conf)>>5) & 0x1f)
|
|
|
|
#define amba_membar_type(mbar) ((mbar) & 0xf)
|
|
|
|
#define amba_membar_mask(mbar) (((mbar)>>4) & 0xfff)
|
|
|
|
#define AMBA_TYPE_APBIO 0x1
|
|
#define AMBA_TYPE_MEM 0x2
|
|
#define AMBA_TYPE_AHBIO 0x3
|
|
|
|
#define AMBA_TYPE_AHBIO_ADDR(addr) (LEON3_IO_AREA | ((addr) >> 12))
|
|
|
|
#ifndef __ASSEMBLER__
|
|
|
|
#ifdef CONFIG_CMD_AMBAPP
|
|
|
|
/* AMBA Plug&Play relocation & initialization */
|
|
int ambapp_init_reloc(void);
|
|
|
|
/* AMBA Plug&Play Name of Vendors and devices */
|
|
|
|
/* Return name of device */
|
|
char *ambapp_device_id2str(int vendor, int id);
|
|
|
|
/* Return name of vendor */
|
|
char *ambapp_vendor_id2str(int vendor);
|
|
#endif
|
|
|
|
/*
|
|
* Types and structure used for AMBA Plug & Play bus scanning
|
|
*/
|
|
|
|
/* AMBA Plug&Play AHB information layout */
|
|
typedef struct {
|
|
unsigned int conf;
|
|
unsigned int userdef[3];
|
|
unsigned int bars[4];
|
|
} ahbctrl_pp_dev;
|
|
|
|
/* Prototypes for scanning AMBA Plug&Play bus for AMBA
|
|
* i) AHB Masters
|
|
* ii) AHB Slaves
|
|
* iii) APB Slaves (APB MST is a AHB Slave)
|
|
*/
|
|
|
|
typedef struct {
|
|
unsigned char irq;
|
|
unsigned char ver;
|
|
unsigned int address;
|
|
} ambapp_apbdev;
|
|
|
|
typedef struct {
|
|
unsigned char irq;
|
|
unsigned char ver;
|
|
unsigned int userdef[3];
|
|
unsigned int address[4];
|
|
} ambapp_ahbdev;
|
|
|
|
/* AMBA Plug&Play AHB Masters & Slaves information locations
|
|
* Max devices is 64 supported by HW, however often only 8
|
|
* are used.
|
|
*/
|
|
typedef struct {
|
|
ahbctrl_pp_dev masters[64];
|
|
ahbctrl_pp_dev slaves[64];
|
|
} ahbctrl_info;
|
|
|
|
/* AMBA Plug&Play AHB information layout */
|
|
typedef struct {
|
|
unsigned int conf;
|
|
unsigned int bar;
|
|
} apbctrl_pp_dev;
|
|
|
|
/* All functions return the number of found devices
|
|
* 0 = no devices found
|
|
*/
|
|
|
|
/****************************** APB SLAVES ******************************/
|
|
int ambapp_apb_count(unsigned int vendor, unsigned int driver);
|
|
|
|
int ambapp_apb_first(unsigned int vendor,
|
|
unsigned int driver, ambapp_apbdev * dev);
|
|
|
|
int ambapp_apb_next(unsigned int vendor,
|
|
unsigned int driver, ambapp_apbdev * dev, int index);
|
|
|
|
int ambapp_apbs_first(unsigned int vendor,
|
|
unsigned int driver, ambapp_apbdev * dev, int max_cnt);
|
|
|
|
/****************************** AHB MASTERS ******************************/
|
|
int ambapp_ahbmst_count(unsigned int vendor, unsigned int driver);
|
|
|
|
int ambapp_ahbmst_first(unsigned int vendor,
|
|
unsigned int driver, ambapp_ahbdev * dev);
|
|
|
|
int ambapp_ahbmst_next(unsigned int vendor,
|
|
unsigned int driver, ambapp_ahbdev * dev, int index);
|
|
|
|
int ambapp_ahbmsts_first(unsigned int vendor,
|
|
unsigned int driver, ambapp_ahbdev * dev, int max_cnt);
|
|
|
|
/****************************** AHB SLAVES ******************************/
|
|
int ambapp_ahbslv_count(unsigned int vendor, unsigned int driver);
|
|
|
|
int ambapp_ahbslv_first(unsigned int vendor,
|
|
unsigned int driver, ambapp_ahbdev * dev);
|
|
|
|
int ambapp_ahbslv_next(unsigned int vendor,
|
|
unsigned int driver, ambapp_ahbdev * dev, int index);
|
|
|
|
int ambapp_ahbslvs_first(unsigned int vendor,
|
|
unsigned int driver, ambapp_ahbdev * dev, int max_cnt);
|
|
|
|
/*************************** AHB/APB only regs functions *************************
|
|
* During start up, no memory is available we can use the simplified functions
|
|
* to get to the memory controller.
|
|
*
|
|
* Functions uses no stack/memory, only registers.
|
|
*/
|
|
unsigned int ambapp_apb_next_nomem(register unsigned int vendor, /* Plug&Play Vendor ID */
|
|
register unsigned int driver, /* Plug&Play Device ID */
|
|
register int index);
|
|
|
|
ahbctrl_pp_dev *ambapp_ahb_next_nomem(register unsigned int vendor, /* Plug&Play Vendor ID */
|
|
register unsigned int driver, /* Plug&Play Device ID */
|
|
register unsigned int opts, /* scan for AHB 1=slave, 0=masters */
|
|
register int index);
|
|
|
|
unsigned int ambapp_ahb_get_info(ahbctrl_pp_dev * ahb, int info);
|
|
|
|
/*************************** AMBA Plug&Play device register MAPS *****************/
|
|
|
|
/*
|
|
* The following defines the bits in the LEON UART Status Registers.
|
|
*/
|
|
|
|
#define LEON_REG_UART_STATUS_DR 0x00000001 /* Data Ready */
|
|
#define LEON_REG_UART_STATUS_TSE 0x00000002 /* TX Send Register Empty */
|
|
#define LEON_REG_UART_STATUS_THE 0x00000004 /* TX Hold Register Empty */
|
|
#define LEON_REG_UART_STATUS_BR 0x00000008 /* Break Error */
|
|
#define LEON_REG_UART_STATUS_OE 0x00000010 /* RX Overrun Error */
|
|
#define LEON_REG_UART_STATUS_PE 0x00000020 /* RX Parity Error */
|
|
#define LEON_REG_UART_STATUS_FE 0x00000040 /* RX Framing Error */
|
|
#define LEON_REG_UART_STATUS_ERR 0x00000078 /* Error Mask */
|
|
|
|
/*
|
|
* The following defines the bits in the LEON UART Ctrl Registers.
|
|
*/
|
|
|
|
#define LEON_REG_UART_CTRL_RE 0x00000001 /* Receiver enable */
|
|
#define LEON_REG_UART_CTRL_TE 0x00000002 /* Transmitter enable */
|
|
#define LEON_REG_UART_CTRL_RI 0x00000004 /* Receiver interrupt enable */
|
|
#define LEON_REG_UART_CTRL_TI 0x00000008 /* Transmitter interrupt enable */
|
|
#define LEON_REG_UART_CTRL_PS 0x00000010 /* Parity select */
|
|
#define LEON_REG_UART_CTRL_PE 0x00000020 /* Parity enable */
|
|
#define LEON_REG_UART_CTRL_FL 0x00000040 /* Flow control enable */
|
|
#define LEON_REG_UART_CTRL_LB 0x00000080 /* Loop Back enable */
|
|
#define LEON_REG_UART_CTRL_DBG (1<<11) /* Debug Bit used by GRMON */
|
|
|
|
#define LEON3_GPTIMER_EN 1
|
|
#define LEON3_GPTIMER_RL 2
|
|
#define LEON3_GPTIMER_LD 4
|
|
#define LEON3_GPTIMER_IRQEN 8
|
|
|
|
/*
|
|
* The following defines the bits in the LEON PS/2 Status Registers.
|
|
*/
|
|
|
|
#define LEON_REG_PS2_STATUS_DR 0x00000001 /* Data Ready */
|
|
#define LEON_REG_PS2_STATUS_PE 0x00000002 /* Parity error */
|
|
#define LEON_REG_PS2_STATUS_FE 0x00000004 /* Framing error */
|
|
#define LEON_REG_PS2_STATUS_KI 0x00000008 /* Keyboard inhibit */
|
|
|
|
/*
|
|
* The following defines the bits in the LEON PS/2 Ctrl Registers.
|
|
*/
|
|
|
|
#define LEON_REG_PS2_CTRL_RE 0x00000001 /* Receiver enable */
|
|
#define LEON_REG_PS2_CTRL_TE 0x00000002 /* Transmitter enable */
|
|
#define LEON_REG_PS2_CTRL_RI 0x00000004 /* Keyboard receive interrupt */
|
|
#define LEON_REG_PS2_CTRL_TI 0x00000008 /* Keyboard transmit interrupt */
|
|
|
|
typedef struct {
|
|
volatile unsigned int ilevel;
|
|
volatile unsigned int ipend;
|
|
volatile unsigned int iforce;
|
|
volatile unsigned int iclear;
|
|
volatile unsigned int mstatus;
|
|
volatile unsigned int notused[11];
|
|
volatile unsigned int cpu_mask[16];
|
|
volatile unsigned int cpu_force[16];
|
|
} ambapp_dev_irqmp;
|
|
|
|
typedef struct {
|
|
volatile unsigned int data;
|
|
volatile unsigned int status;
|
|
volatile unsigned int ctrl;
|
|
volatile unsigned int scaler;
|
|
} ambapp_dev_apbuart;
|
|
|
|
typedef struct {
|
|
volatile unsigned int val;
|
|
volatile unsigned int rld;
|
|
volatile unsigned int ctrl;
|
|
volatile unsigned int unused;
|
|
} ambapp_dev_gptimer_element;
|
|
|
|
#define LEON3_GPTIMER_CTRL_EN 0x1 /* Timer enable */
|
|
#define LEON3_GPTIMER_CTRL_RS 0x2 /* Timer reStart */
|
|
#define LEON3_GPTIMER_CTRL_LD 0x4 /* Timer reLoad */
|
|
#define LEON3_GPTIMER_CTRL_IE 0x8 /* interrupt enable */
|
|
#define LEON3_GPTIMER_CTRL_IP 0x10 /* interrupt flag/pending */
|
|
#define LEON3_GPTIMER_CTRL_CH 0x20 /* Chain with previous timer */
|
|
|
|
typedef struct {
|
|
volatile unsigned int scalar;
|
|
volatile unsigned int scalar_reload;
|
|
volatile unsigned int config;
|
|
volatile unsigned int unused;
|
|
volatile ambapp_dev_gptimer_element e[8];
|
|
} ambapp_dev_gptimer;
|
|
|
|
typedef struct {
|
|
volatile unsigned int iodata;
|
|
volatile unsigned int ioout;
|
|
volatile unsigned int iodir;
|
|
volatile unsigned int irqmask;
|
|
volatile unsigned int irqpol;
|
|
volatile unsigned int irqedge;
|
|
} ambapp_dev_ioport;
|
|
|
|
typedef struct {
|
|
volatile unsigned int write;
|
|
volatile unsigned int dummy;
|
|
volatile unsigned int txcolor;
|
|
volatile unsigned int bgcolor;
|
|
} ambapp_dev_textvga;
|
|
|
|
typedef struct {
|
|
volatile unsigned int data;
|
|
volatile unsigned int status;
|
|
volatile unsigned int ctrl;
|
|
} ambapp_dev_apbps2;
|
|
|
|
typedef struct {
|
|
unsigned int mcfg1, mcfg2, mcfg3;
|
|
} ambapp_dev_mctrl;
|
|
|
|
typedef struct {
|
|
unsigned int sdcfg;
|
|
} ambapp_dev_sdctrl;
|
|
|
|
typedef struct {
|
|
unsigned int cfg1;
|
|
unsigned int cfg2;
|
|
unsigned int cfg3;
|
|
} ambapp_dev_ddr2spa;
|
|
|
|
typedef struct {
|
|
unsigned int ctrl;
|
|
unsigned int cfg;
|
|
} ambapp_dev_ddrspa;
|
|
|
|
#endif
|
|
|
|
#endif
|