/* SPDX-License-Identifier: GPL-2.0-or-later */
/* Freescale Local Bus Controller
*
* Copyright © 2006-2007, 2010 Freescale Semiconductor
*
* Authors: Nick Spence <nick.spence@freescale.com>,
* Scott Wood <scottwood@freescale.com>
* Jack Lan <jack.lan@freescale.com>
*/
#ifndef __ASM_FSL_LBC_H
#define __ASM_FSL_LBC_H
#include <linux/compiler.h>
#include <linux/types.h>
#include <linux/io.h>
#include <linux/device.h>
#include <linux/spinlock.h>
struct fsl_lbc_bank {
__be32 br; /**< Base Register */
#define BR_BA 0 xFFFF8000
#define BR_BA_SHIFT 15
#define BR_PS 0 x00001800
#define BR_PS_SHIFT 11
#define BR_PS_8 0 x00000800 /* Port Size 8 bit */
#define BR_PS_16 0 x00001000 /* Port Size 16 bit */
#define BR_PS_32 0 x00001800 /* Port Size 32 bit */
#define BR_DECC 0 x00000600
#define BR_DECC_SHIFT 9
#define BR_DECC_OFF 0 x00000000 /* HW ECC checking and generation off */
#define BR_DECC_CHK 0 x00000200 /* HW ECC checking on, generation off */
#define BR_DECC_CHK_GEN 0 x00000400 /* HW ECC checking and generation on */
#define BR_WP 0 x00000100
#define BR_WP_SHIFT 8
#define BR_MSEL 0 x000000E0
#define BR_MSEL_SHIFT 5
#define BR_MS_GPCM 0 x00000000 /* GPCM */
#define BR_MS_FCM 0 x00000020 /* FCM */
#define BR_MS_SDRAM 0 x00000060 /* SDRAM */
#define BR_MS_UPMA 0 x00000080 /* UPMA */
#define BR_MS_UPMB 0 x000000A0 /* UPMB */
#define BR_MS_UPMC 0 x000000C0 /* UPMC */
#define BR_V 0 x00000001
#define BR_V_SHIFT 0
#define BR_RES ~(BR_BA|BR_PS|BR_DECC|BR_WP|BR_MSEL|BR_V)
__be32 or ; /**< Base Register */
#define OR0 0 x5004
#define OR1 0 x500C
#define OR2 0 x5014
#define OR3 0 x501C
#define OR4 0 x5024
#define OR5 0 x502C
#define OR6 0 x5034
#define OR7 0 x503C
#define OR_FCM_AM 0 xFFFF8000
#define OR_FCM_AM_SHIFT 15
#define OR_FCM_BCTLD 0 x00001000
#define OR_FCM_BCTLD_SHIFT 12
#define OR_FCM_PGS 0 x00000400
#define OR_FCM_PGS_SHIFT 10
#define OR_FCM_CSCT 0 x00000200
#define OR_FCM_CSCT_SHIFT 9
#define OR_FCM_CST 0 x00000100
#define OR_FCM_CST_SHIFT 8
#define OR_FCM_CHT 0 x00000080
#define OR_FCM_CHT_SHIFT 7
#define OR_FCM_SCY 0 x00000070
#define OR_FCM_SCY_SHIFT 4
#define OR_FCM_SCY_1 0 x00000010
#define OR_FCM_SCY_2 0 x00000020
#define OR_FCM_SCY_3 0 x00000030
#define OR_FCM_SCY_4 0 x00000040
#define OR_FCM_SCY_5 0 x00000050
#define OR_FCM_SCY_6 0 x00000060
#define OR_FCM_SCY_7 0 x00000070
#define OR_FCM_RST 0 x00000008
#define OR_FCM_RST_SHIFT 3
#define OR_FCM_TRLX 0 x00000004
#define OR_FCM_TRLX_SHIFT 2
#define OR_FCM_EHTR 0 x00000002
#define OR_FCM_EHTR_SHIFT 1
#define OR_GPCM_AM 0 xFFFF8000
#define OR_GPCM_AM_SHIFT 15
};
struct fsl_lbc_regs {
struct fsl_lbc_bank bank[12 ];
u8 res0[0 x8];
__be32 mar; /**< UPM Address Register */
u8 res1[0 x4];
__be32 mamr; /**< UPMA Mode Register */
#define MxMR_OP_NO (0 << 28 ) /**< normal operation */
#define MxMR_OP_WA (1 << 28 ) /**< write array */
#define MxMR_OP_RA (2 << 28 ) /**< read array */
#define MxMR_OP_RP (3 << 28 ) /**< run pattern */
#define MxMR_MAD 0 x3f /**< machine address */
__be32 mbmr; /**< UPMB Mode Register */
__be32 mcmr; /**< UPMC Mode Register */
u8 res2[0 x8];
__be32 mrtpr; /**< Memory Refresh Timer Prescaler Register */
__be32 mdr; /**< UPM Data Register */
u8 res3[0 x4];
__be32 lsor; /**< Special Operation Initiation Register */
__be32 lsdmr; /**< SDRAM Mode Register */
u8 res4[0 x8];
__be32 lurt; /**< UPM Refresh Timer */
__be32 lsrt; /**< SDRAM Refresh Timer */
u8 res5[0 x8];
__be32 ltesr; /**< Transfer Error Status Register */
#define LTESR_BM 0 x80000000
#define LTESR_FCT 0 x40000000
#define LTESR_PAR 0 x20000000
#define LTESR_WP 0 x04000000
#define LTESR_ATMW 0 x00800000
#define LTESR_ATMR 0 x00400000
#define LTESR_CS 0 x00080000
#define LTESR_UPM 0 x00000002
#define LTESR_CC 0 x00000001
#define LTESR_NAND_MASK (LTESR_FCT | LTESR_PAR | LTESR_CC)
#define LTESR_MASK (LTESR_BM | LTESR_FCT | LTESR_PAR | LTESR_WP \
| LTESR_ATMW | LTESR_ATMR | LTESR_CS | LTESR_UPM \
| LTESR_CC)
#define LTESR_CLEAR 0 xFFFFFFFF
#define LTECCR_CLEAR 0 xFFFFFFFF
#define LTESR_STATUS LTESR_MASK
#define LTEIR_ENABLE LTESR_MASK
#define LTEDR_ENABLE 0 x00000000
__be32 ltedr; /**< Transfer Error Disable Register */
__be32 lteir; /**< Transfer Error Interrupt Register */
__be32 lteatr; /**< Transfer Error Attributes Register */
__be32 ltear; /**< Transfer Error Address Register */
__be32 lteccr; /**< Transfer Error ECC Register */
u8 res6[0 x8];
__be32 lbcr; /**< Configuration Register */
#define LBCR_LDIS 0 x80000000
#define LBCR_LDIS_SHIFT 31
#define LBCR_BCTLC 0 x00C00000
#define LBCR_BCTLC_SHIFT 22
#define LBCR_AHD 0 x00200000
#define LBCR_LPBSE 0 x00020000
#define LBCR_LPBSE_SHIFT 17
#define LBCR_EPAR 0 x00010000
#define LBCR_EPAR_SHIFT 16
#define LBCR_BMT 0 x0000FF00
#define LBCR_BMT_SHIFT 8
#define LBCR_BMTPS 0 x0000000F
#define LBCR_BMTPS_SHIFT 0
#define LBCR_INIT 0 x00040000
__be32 lcrr; /**< Clock Ratio Register */
#define LCRR_DBYP 0 x80000000
#define LCRR_DBYP_SHIFT 31
#define LCRR_BUFCMDC 0 x30000000
#define LCRR_BUFCMDC_SHIFT 28
#define LCRR_ECL 0 x03000000
#define LCRR_ECL_SHIFT 24
#define LCRR_EADC 0 x00030000
#define LCRR_EADC_SHIFT 16
#define LCRR_CLKDIV 0 x0000000F
#define LCRR_CLKDIV_SHIFT 0
u8 res7[0 x8];
__be32 fmr; /**< Flash Mode Register */
#define FMR_CWTO 0 x0000F000
#define FMR_CWTO_SHIFT 12
#define FMR_BOOT 0 x00000800
#define FMR_ECCM 0 x00000100
#define FMR_AL 0 x00000030
#define FMR_AL_SHIFT 4
#define FMR_OP 0 x00000003
#define FMR_OP_SHIFT 0
__be32 fir; /**< Flash Instruction Register */
#define FIR_OP0 0 xF0000000
#define FIR_OP0_SHIFT 28
#define FIR_OP1 0 x0F000000
#define FIR_OP1_SHIFT 24
#define FIR_OP2 0 x00F00000
#define FIR_OP2_SHIFT 20
#define FIR_OP3 0 x000F0000
#define FIR_OP3_SHIFT 16
#define FIR_OP4 0 x0000F000
#define FIR_OP4_SHIFT 12
#define FIR_OP5 0 x00000F00
#define FIR_OP5_SHIFT 8
#define FIR_OP6 0 x000000F0
#define FIR_OP6_SHIFT 4
#define FIR_OP7 0 x0000000F
#define FIR_OP7_SHIFT 0
#define FIR_OP_NOP 0 x0 /* No operation and end of sequence */
#define FIR_OP_CA 0 x1 /* Issue current column address */
#define FIR_OP_PA 0 x2 /* Issue current block+page address */
#define FIR_OP_UA 0 x3 /* Issue user defined address */
#define FIR_OP_CM0 0 x4 /* Issue command from FCR[CMD0] */
#define FIR_OP_CM1 0 x5 /* Issue command from FCR[CMD1] */
#define FIR_OP_CM2 0 x6 /* Issue command from FCR[CMD2] */
#define FIR_OP_CM3 0 x7 /* Issue command from FCR[CMD3] */
#define FIR_OP_WB 0 x8 /* Write FBCR bytes from FCM buffer */
#define FIR_OP_WS 0 x9 /* Write 1 or 2 bytes from MDR[AS] */
#define FIR_OP_RB 0 xA /* Read FBCR bytes to FCM buffer */
#define FIR_OP_RS 0 xB /* Read 1 or 2 bytes to MDR[AS] */
#define FIR_OP_CW0 0 xC /* Wait then issue FCR[CMD0] */
#define FIR_OP_CW1 0 xD /* Wait then issue FCR[CMD1] */
#define FIR_OP_RBW 0 xE /* Wait then read FBCR bytes */
#define FIR_OP_RSW 0 xE /* Wait then read 1 or 2 bytes */
__be32 fcr; /**< Flash Command Register */
#define FCR_CMD0 0 xFF000000
#define FCR_CMD0_SHIFT 24
#define FCR_CMD1 0 x00FF0000
#define FCR_CMD1_SHIFT 16
#define FCR_CMD2 0 x0000FF00
#define FCR_CMD2_SHIFT 8
#define FCR_CMD3 0 x000000FF
#define FCR_CMD3_SHIFT 0
__be32 fbar; /**< Flash Block Address Register */
#define FBAR_BLK 0 x00FFFFFF
__be32 fpar; /**< Flash Page Address Register */
#define FPAR_SP_PI 0 x00007C00
#define FPAR_SP_PI_SHIFT 10
#define FPAR_SP_MS 0 x00000200
#define FPAR_SP_CI 0 x000001FF
#define FPAR_SP_CI_SHIFT 0
#define FPAR_LP_PI 0 x0003F000
#define FPAR_LP_PI_SHIFT 12
#define FPAR_LP_MS 0 x00000800
#define FPAR_LP_CI 0 x000007FF
#define FPAR_LP_CI_SHIFT 0
__be32 fbcr; /**< Flash Byte Count Register */
#define FBCR_BC 0 x00000FFF
};
/*
* FSL UPM routines
*/
struct fsl_upm {
__be32 __iomem *mxmr;
int width;
};
extern u32 fsl_lbc_addr(phys_addr_t addr_base);
extern int fsl_lbc_find(phys_addr_t addr_base);
extern int fsl_upm_find(phys_addr_t addr_base, struct fsl_upm *upm);
/**
* fsl_upm_start_pattern - start UPM patterns execution
* @upm: pointer to the fsl_upm structure obtained via fsl_upm_find
* @pat_offset: UPM pattern offset for the command to be executed
*
* This routine programmes UPM so the next memory access that hits an UPM
* will trigger pattern execution, starting at pat_offset.
*/
static inline void fsl_upm_start_pattern(struct fsl_upm *upm, u8 pat_offset)
{
clrsetbits_be32(upm->mxmr, MxMR_MAD, MxMR_OP_RP | pat_offset);
}
/**
* fsl_upm_end_pattern - end UPM patterns execution
* @upm: pointer to the fsl_upm structure obtained via fsl_upm_find
*
* This routine reverts UPM to normal operation mode.
*/
static inline void fsl_upm_end_pattern(struct fsl_upm *upm)
{
clrbits32(upm->mxmr, MxMR_OP_RP);
while (in_be32(upm->mxmr) & MxMR_OP_RP)
cpu_relax();
}
/* overview of the fsl lbc controller */
struct fsl_lbc_ctrl {
/* device info */
struct device *dev;
struct fsl_lbc_regs __iomem *regs;
int irq[2 ];
wait_queue_head_t irq_wait;
spinlock_t lock;
void *nand;
/* status read from LTESR by irq handler */
unsigned int irq_status;
#ifdef CONFIG_SUSPEND
/* save regs when system go to deep-sleep */
struct fsl_lbc_regs *saved_regs;
#endif
};
extern int fsl_upm_run_pattern(struct fsl_upm *upm, void __iomem *io_base,
u32 mar);
extern struct fsl_lbc_ctrl *fsl_lbc_ctrl_dev;
#endif /* __ASM_FSL_LBC_H */
Messung V0.5 in Prozent C=89 H=90 G=89
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-06-07)
¤
*© Formatika GbR, Deutschland