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QIXIS FPGA is accessable via both i2c and flash controller. Only flash controller access is supported. Add support of i2c based access. It is quite useful in the scenario where either flash controller path is broken or not present. Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com> Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
108 lines
2.9 KiB
C
108 lines
2.9 KiB
C
/*
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* Copyright 2011 Freescale Semiconductor
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* Author: Shengzhou Liu <Shengzhou.Liu@freescale.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This file provides support for the QIXIS of some Freescale reference boards.
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*/
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#ifndef __QIXIS_H_
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#define __QIXIS_H_
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struct qixis {
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u8 id; /* ID value uniquely identifying each QDS board type */
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u8 arch; /* Board version information */
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u8 scver; /* QIXIS Version Register */
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u8 model; /* Information of software programming model version */
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u8 tagdata;
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u8 ctl_sys;
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u8 aux; /* Auxiliary Register,0x06 */
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u8 clk_spd;
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u8 stat_dut;
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u8 stat_sys;
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u8 stat_alrm;
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u8 present;
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u8 present2; /* Presence Status Register 2,0x0c */
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u8 rcw_ctl;
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u8 ctl_led;
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u8 i2cblk;
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u8 rcfg_ctl; /* Reconfig Control Register,0x10 */
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u8 rcfg_st;
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u8 dcm_ad;
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u8 dcm_da;
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u8 dcmd;
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u8 dmsg;
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u8 gdc;
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u8 gdd; /* DCM Debug Data Register,0x17 */
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u8 dmack;
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u8 res1[6];
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u8 watch; /* Watchdog Register,0x1F */
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u8 pwr_ctl[2]; /* Power Control Register,0x20 */
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u8 res2[2];
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u8 pwr_stat[4]; /* Power Status Register,0x24 */
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u8 res3[8];
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u8 clk_spd2[2]; /* SYSCLK clock Speed Register,0x30 */
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u8 res4[2];
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u8 sclk[3]; /* Clock Configuration Registers,0x34 */
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u8 res5;
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u8 dclk[3];
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u8 res6;
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u8 clk_dspd[3];
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u8 res7;
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u8 rst_ctl; /* Reset Control Register,0x40 */
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u8 rst_stat; /* Reset Status Register */
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u8 rst_rsn; /* Reset Reason Register */
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u8 rst_frc[2]; /* Reset Force Registers,0x43 */
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u8 res8[11];
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u8 brdcfg[16]; /* Board Configuration Register,0x50 */
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u8 dutcfg[16];
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u8 rcw_ad[2]; /* RCW SRAM Address Registers,0x70 */
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u8 rcw_data;
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u8 res9[5];
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u8 post_ctl;
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u8 post_stat;
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u8 post_dat[2];
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u8 pi_d[4];
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u8 gpio_io[4];
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u8 gpio_dir[4];
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u8 res10[20];
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u8 rjtag_ctl;
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u8 rjtag_dat;
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u8 res11[2];
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u8 trig_src[4];
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u8 trig_dst[4];
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u8 trig_stat;
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u8 res12[3];
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u8 trig_ctr[4];
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u8 res13[48];
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u8 aux2[4]; /* Auxiliary Registers,0xE0 */
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u8 res14[10];
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u8 aux_ad;
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u8 aux_da;
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u8 res15[16];
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};
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u8 qixis_read(unsigned int reg);
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void qixis_write(unsigned int reg, u8 value);
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u16 qixis_read_minor(void);
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char *qixis_read_time(char *result);
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char *qixis_read_tag(char *buf);
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const char *byte_to_binary_mask(u8 val, u8 mask, char *buf);
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#ifdef CONFIG_SYS_I2C_FPGA_ADDR
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u8 qixis_read_i2c(unsigned int reg);
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void qixis_write_i2c(unsigned int reg, u8 value);
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#endif
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#define QIXIS_READ(reg) qixis_read(offsetof(struct qixis, reg))
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#define QIXIS_WRITE(reg, value) qixis_write(offsetof(struct qixis, reg), value)
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#ifdef CONFIG_SYS_I2C_FPGA_ADDR
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#define QIXIS_READ_I2C(reg) qixis_read_i2c(offsetof(struct qixis, reg))
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#define QIXIS_WRITE_I2C(reg, value) \
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qixis_write_i2c(offsetof(struct qixis, reg), value)
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#endif
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#endif
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