upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/include/spartan2.h

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/*
* (C) Copyright 2002
* Rich Ireland, Enterasys Networks, rireland@enterasys.com.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _SPARTAN2_H_
#define _SPARTAN2_H_
#include <xilinx.h>
extern int Spartan2_load(Xilinx_desc *desc, const void *image, size_t size);
extern int Spartan2_dump(Xilinx_desc *desc, const void *buf, size_t bsize);
extern int Spartan2_info(Xilinx_desc *desc);
/* Slave Parallel Implementation function table */
typedef struct {
Xilinx_pre_fn pre;
Xilinx_pgm_fn pgm;
Xilinx_init_fn init;
Xilinx_err_fn err;
Xilinx_done_fn done;
Xilinx_clk_fn clk;
Xilinx_cs_fn cs;
Xilinx_wr_fn wr;
Xilinx_rdata_fn rdata;
Xilinx_wdata_fn wdata;
Xilinx_busy_fn busy;
Xilinx_abort_fn abort;
Xilinx_post_fn post;
} Xilinx_Spartan2_Slave_Parallel_fns;
/* Slave Serial Implementation function table */
typedef struct {
Xilinx_pre_fn pre;
Xilinx_pgm_fn pgm;
Xilinx_clk_fn clk;
Xilinx_init_fn init;
Xilinx_done_fn done;
Xilinx_wr_fn wr;
Xilinx_post_fn post;
} Xilinx_Spartan2_Slave_Serial_fns;
/* Device Image Sizes
*********************************************************************/
/* Spartan-II (2.5V) */
#define XILINX_XC2S15_SIZE 197728/8
#define XILINX_XC2S30_SIZE 336800/8
#define XILINX_XC2S50_SIZE 559232/8
#define XILINX_XC2S100_SIZE 781248/8
#define XILINX_XC2S150_SIZE 1040128/8
#define XILINX_XC2S200_SIZE 1335872/8
/* Spartan-IIE (1.8V) */
#define XILINX_XC2S50E_SIZE 630048/8
#define XILINX_XC2S100E_SIZE 863840/8
#define XILINX_XC2S150E_SIZE 1134496/8
#define XILINX_XC2S200E_SIZE 1442016/8
#define XILINX_XC2S300E_SIZE 1875648/8
/* Descriptor Macros
*********************************************************************/
/* Spartan-II devices */
#define XILINX_XC2S15_DESC(iface, fn_table, cookie) \
{ Xilinx_Spartan2, iface, XILINX_XC2S15_SIZE, fn_table, cookie }
#define XILINX_XC2S30_DESC(iface, fn_table, cookie) \
{ Xilinx_Spartan2, iface, XILINX_XC2S30_SIZE, fn_table, cookie }
#define XILINX_XC2S50_DESC(iface, fn_table, cookie) \
{ Xilinx_Spartan2, iface, XILINX_XC2S50_SIZE, fn_table, cookie }
#define XILINX_XC2S100_DESC(iface, fn_table, cookie) \
{ Xilinx_Spartan2, iface, XILINX_XC2S100_SIZE, fn_table, cookie }
#define XILINX_XC2S150_DESC(iface, fn_table, cookie) \
{ Xilinx_Spartan2, iface, XILINX_XC2S150_SIZE, fn_table, cookie }
#define XILINX_XC2S200_DESC(iface, fn_table, cookie) \
{ Xilinx_Spartan2, iface, XILINX_XC2S200_SIZE, fn_table, cookie }
#define XILINX_XC2S50E_DESC(iface, fn_table, cookie) \
{ Xilinx_Spartan2, iface, XILINX_XC2S50E_SIZE, fn_table, cookie }
#define XILINX_XC2S100E_DESC(iface, fn_table, cookie) \
{ Xilinx_Spartan2, iface, XILINX_XC2S100E_SIZE, fn_table, cookie }
#define XILINX_XC2S150E_DESC(iface, fn_table, cookie) \
{ Xilinx_Spartan2, iface, XILINX_XC2S150E_SIZE, fn_table, cookie }
#define XILINX_XC2S200E_DESC(iface, fn_table, cookie) \
{ Xilinx_Spartan2, iface, XILINX_XC2S200E_SIZE, fn_table, cookie }
#define XILINX_XC2S300E_DESC(iface, fn_table, cookie) \
{ Xilinx_Spartan2, iface, XILINX_XC2S300E_SIZE, fn_table, cookie }
#endif /* _SPARTAN2_H_ */