mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 00:47:26 +00:00
117 lines
4.1 KiB
C
117 lines
4.1 KiB
C
/*
|
|
* (C) Copyright 2009
|
|
* Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef ST_SMI_H
|
|
#define ST_SMI_H
|
|
|
|
/* 0xF800.0000 . 0xFBFF.FFFF 64MB SMI (Serial Flash Mem) */
|
|
/* 0xFC00.0000 . 0xFC1F.FFFF 2MB SMI (Serial Flash Reg.) */
|
|
|
|
#define FLASH_START_ADDRESS CONFIG_SYS_FLASH_BASE
|
|
#define FLASH_BANK_SIZE CONFIG_SYS_FLASH_BANK_SIZE
|
|
|
|
#define SMIBANK0_BASE (FLASH_START_ADDRESS)
|
|
#define SMIBANK1_BASE (SMIBANK0_BASE + FLASH_BANK_SIZE)
|
|
#define SMIBANK2_BASE (SMIBANK1_BASE + FLASH_BANK_SIZE)
|
|
#define SMIBANK3_BASE (SMIBANK2_BASE + FLASH_BANK_SIZE)
|
|
|
|
#define BANK0 0
|
|
#define BANK1 1
|
|
#define BANK2 2
|
|
#define BANK3 3
|
|
|
|
struct smi_regs {
|
|
u32 smi_cr1;
|
|
u32 smi_cr2;
|
|
u32 smi_sr;
|
|
u32 smi_tr;
|
|
u32 smi_rr;
|
|
};
|
|
|
|
/* CONTROL REG 1 */
|
|
#define BANK_EN 0x0000000F /* enables all banks */
|
|
#define DSEL_TIME 0x00000060 /* Deselect time */
|
|
#define PRESCAL5 0x00000500 /* AHB_CK prescaling value */
|
|
#define PRESCALA 0x00000A00 /* AHB_CK prescaling value */
|
|
#define PRESCAL3 0x00000300 /* AHB_CK prescaling value */
|
|
#define PRESCAL4 0x00000400 /* AHB_CK prescaling value */
|
|
#define SW_MODE 0x10000000 /* enables SW Mode */
|
|
#define WB_MODE 0x20000000 /* Write Burst Mode */
|
|
#define FAST_MODE 0x00008000 /* Fast Mode */
|
|
#define HOLD1 0x00010000
|
|
|
|
/* CONTROL REG 2 */
|
|
#define RD_STATUS_REG 0x00000400 /* reads status reg */
|
|
#define WE 0x00000800 /* Write Enable */
|
|
#define BANK0_SEL 0x00000000 /* Select Banck0 */
|
|
#define BANK1_SEL 0x00001000 /* Select Banck1 */
|
|
#define BANK2_SEL 0x00002000 /* Select Banck2 */
|
|
#define BANK3_SEL 0x00003000 /* Select Banck3 */
|
|
#define BANKSEL_SHIFT 12
|
|
#define SEND 0x00000080 /* Send data */
|
|
#define TX_LEN_1 0x00000001 /* data length = 1 byte */
|
|
#define TX_LEN_2 0x00000002 /* data length = 2 byte */
|
|
#define TX_LEN_3 0x00000003 /* data length = 3 byte */
|
|
#define TX_LEN_4 0x00000004 /* data length = 4 byte */
|
|
#define RX_LEN_1 0x00000010 /* data length = 1 byte */
|
|
#define RX_LEN_2 0x00000020 /* data length = 2 byte */
|
|
#define RX_LEN_3 0x00000030 /* data length = 3 byte */
|
|
#define RX_LEN_4 0x00000040 /* data length = 4 byte */
|
|
#define TFIE 0x00000100 /* Tx Flag Interrupt Enable */
|
|
#define WCIE 0x00000200 /* WCF Interrupt Enable */
|
|
|
|
/* STATUS_REG */
|
|
#define INT_WCF_CLR 0xFFFFFDFF /* clear: WCF clear */
|
|
#define INT_TFF_CLR 0xFFFFFEFF /* clear: TFF clear */
|
|
#define WIP_BIT 0x00000001 /* WIP Bit of SPI SR */
|
|
#define WEL_BIT 0x00000002 /* WEL Bit of SPI SR */
|
|
#define RSR 0x00000005 /* Read Status regiser */
|
|
#define TFF 0x00000100 /* Transfer Finished FLag */
|
|
#define WCF 0x00000200 /* Transfer Finished FLag */
|
|
#define ERF1 0x00000400 /* Error Flag 1 */
|
|
#define ERF2 0x00000800 /* Error Flag 2 */
|
|
#define WM0 0x00001000 /* WM Bank 0 */
|
|
#define WM1 0x00002000 /* WM Bank 1 */
|
|
#define WM2 0x00004000 /* WM Bank 2 */
|
|
#define WM3 0x00008000 /* WM Bank 3 */
|
|
#define WM_SHIFT 12
|
|
|
|
/* TR REG */
|
|
#define READ_ID 0x0000009F /* Read Identification */
|
|
#define BULK_ERASE 0x000000C7 /* BULK erase */
|
|
#define SECTOR_ERASE 0x000000D8 /* SECTOR erase */
|
|
#define WRITE_ENABLE 0x00000006 /* Wenable command to FLASH */
|
|
|
|
struct flash_dev {
|
|
u32 density;
|
|
ulong size;
|
|
ushort sector_count;
|
|
};
|
|
|
|
#define SFLASH_PAGE_SIZE 0x100 /* flash page size */
|
|
#define XFER_FINISH_TOUT 15 /* xfer finish timeout(in ms) */
|
|
#define WMODE_TOUT 15 /* write enable timeout(in ms) */
|
|
|
|
extern void smi_init(void);
|
|
|
|
#endif
|