91 lines
2.2 KiB
C
91 lines
2.2 KiB
C
/* GRLIB Memory controller setup structures
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*
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* (C) Copyright 2010, 2015
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* Daniel Hellstrom, Cobham Gaisler, daniel@gaisler.com.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __MEMCFG_H__
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#define __MEMCFG_H__
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/*********** Low Level Memory Controller Initalization ***********/
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#ifndef __ASSEMBLER__
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struct grlib_mctrl_handler;
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typedef void (*mctrl_handler_t)(
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struct grlib_mctrl_handler *dev,
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void *conf,
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unsigned int ioarea
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);
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/* Memory Controller Handler Structure */
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struct grlib_mctrl_handler {
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unsigned char type; /* 0x00. MASK: AHB MST&SLV, APB SLV */
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char index; /* 0x01. Unit number, 0, 1, 2... */
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char unused[2]; /* 0x02 */
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unsigned int ven_dev; /* 0x04. Device and Vendor */
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mctrl_handler_t func; /* 0x08. Memory Controller Handler */
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void *priv; /* 0x0c. Optional private data, ptr to
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* info how to set up controller */
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};
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extern struct grlib_mctrl_handler grlib_mctrl_handlers[];
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#endif
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#define MH_STRUCT_SIZE (4*4)
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#define MH_TYPE 0x00
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#define MH_INDEX 0x01
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#define MH_VENDOR_DEVICE 0x04
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#define MH_FUNC 0x08
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#define MH_PRIV 0x0c
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#define MH_TYPE_NONE DEV_NONE
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#define MH_TYPE_AHB_MST DEV_AHB_MST
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#define MH_TYPE_AHB_SLV DEV_AHB_SLV
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#define MH_TYPE_APB_SLV DEV_APB_SLV
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#define MH_UNUSED {0, 0}
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#define MH_END {DEV_NONE, 0, MH_UNUSED, AMBA_PNP_ID(0, 0), 0, 0}
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/*********** Low Level Memory Controller Initalization Handlers ***********/
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#ifndef __ASSEMBLER__
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extern void _nomem_mctrl_init(
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struct grlib_mctrl_handler *dev,
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void *conf,
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unsigned int ioarea_apbmst);
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struct mctrl_setup {
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unsigned int reg_mask; /* Which registers to write */
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struct {
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unsigned int mask; /* Mask used keep reg bits unchanged */
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unsigned int value; /* Value written to register */
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} regs[8];
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};
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extern void _nomem_ahbmctrl_init(
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struct grlib_mctrl_handler *dev,
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void *conf,
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unsigned int ioarea_apbmst);
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struct ahbmctrl_setup {
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int ahb_mbar_no; /* MBAR to get register address from */
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unsigned int reg_mask; /* Which registers to write */
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struct {
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unsigned int mask; /* Mask used keep reg bits unchanged */
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unsigned int value; /* Value written to register */
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} regs[8];
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};
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#endif
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/* mctrl_setup data structure defines */
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#define NREGS_OFS 0
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#define REGS_OFS 0x4
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#define REGS_SIZE 8
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#endif
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