3 * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 /* 0xF800.0000 . 0xFBFF.FFFF 64MB SMI (Serial Flash Mem) */
28 /* 0xFC00.0000 . 0xFC1F.FFFF 2MB SMI (Serial Flash Reg.) */
30 #define FLASH_START_ADDRESS CONFIG_SYS_FLASH_BASE
31 #define FLASH_BANK_SIZE CONFIG_SYS_FLASH_BANK_SIZE
33 #define SMIBANK0_BASE (FLASH_START_ADDRESS)
34 #define SMIBANK1_BASE (SMIBANK0_BASE + FLASH_BANK_SIZE)
35 #define SMIBANK2_BASE (SMIBANK1_BASE + FLASH_BANK_SIZE)
36 #define SMIBANK3_BASE (SMIBANK2_BASE + FLASH_BANK_SIZE)
52 #define BANK_EN 0x0000000F /* enables all banks */
53 #define DSEL_TIME 0x00000060 /* Deselect time */
54 #define PRESCAL5 0x00000500 /* AHB_CK prescaling value */
55 #define PRESCALA 0x00000A00 /* AHB_CK prescaling value */
56 #define PRESCAL3 0x00000300 /* AHB_CK prescaling value */
57 #define PRESCAL4 0x00000400 /* AHB_CK prescaling value */
58 #define SW_MODE 0x10000000 /* enables SW Mode */
59 #define WB_MODE 0x20000000 /* Write Burst Mode */
60 #define FAST_MODE 0x00008000 /* Fast Mode */
61 #define HOLD1 0x00010000
64 #define RD_STATUS_REG 0x00000400 /* reads status reg */
65 #define WE 0x00000800 /* Write Enable */
66 #define BANK0_SEL 0x00000000 /* Select Banck0 */
67 #define BANK1_SEL 0x00001000 /* Select Banck1 */
68 #define BANK2_SEL 0x00002000 /* Select Banck2 */
69 #define BANK3_SEL 0x00003000 /* Select Banck3 */
70 #define BANKSEL_SHIFT 12
71 #define SEND 0x00000080 /* Send data */
72 #define TX_LEN_1 0x00000001 /* data length = 1 byte */
73 #define TX_LEN_2 0x00000002 /* data length = 2 byte */
74 #define TX_LEN_3 0x00000003 /* data length = 3 byte */
75 #define TX_LEN_4 0x00000004 /* data length = 4 byte */
76 #define RX_LEN_1 0x00000010 /* data length = 1 byte */
77 #define RX_LEN_2 0x00000020 /* data length = 2 byte */
78 #define RX_LEN_3 0x00000030 /* data length = 3 byte */
79 #define RX_LEN_4 0x00000040 /* data length = 4 byte */
80 #define TFIE 0x00000100 /* Tx Flag Interrupt Enable */
81 #define WCIE 0x00000200 /* WCF Interrupt Enable */
84 #define INT_WCF_CLR 0xFFFFFDFF /* clear: WCF clear */
85 #define INT_TFF_CLR 0xFFFFFEFF /* clear: TFF clear */
86 #define WIP_BIT 0x00000001 /* WIP Bit of SPI SR */
87 #define WEL_BIT 0x00000002 /* WEL Bit of SPI SR */
88 #define RSR 0x00000005 /* Read Status regiser */
89 #define TFF 0x00000100 /* Transfer Finished FLag */
90 #define WCF 0x00000200 /* Transfer Finished FLag */
91 #define ERF1 0x00000400 /* Error Flag 1 */
92 #define ERF2 0x00000800 /* Error Flag 2 */
93 #define WM0 0x00001000 /* WM Bank 0 */
94 #define WM1 0x00002000 /* WM Bank 1 */
95 #define WM2 0x00004000 /* WM Bank 2 */
96 #define WM3 0x00008000 /* WM Bank 3 */
100 #define READ_ID 0x0000009F /* Read Identification */
101 #define BULK_ERASE 0x000000C7 /* BULK erase */
102 #define SECTOR_ERASE 0x000000D8 /* SECTOR erase */
103 #define WRITE_ENABLE 0x00000006 /* Wenable command to FLASH */
111 #define SFLASH_PAGE_SIZE 0x100 /* flash page size */
112 #define XFER_FINISH_TOUT 15 /* xfer finish timeout(in ms) */
113 #define WMODE_TOUT 15 /* write enable timeout(in ms) */
115 extern void smi_init(void);