From 8a096e250cd4eafa42cc44ec40a4f76d336f8616 Mon Sep 17 00:00:00 2001 From: "H. Nikolaus Schaller" Date: Fri, 20 Apr 2012 14:13:13 +0200 Subject: cleaned old uart-monitor and uart-loader which have become part of x-loader --- uart-monitor/drivers/onenand.c | 203 ----------------------------------------- 1 file changed, 203 deletions(-) delete mode 100644 uart-monitor/drivers/onenand.c (limited to 'uart-monitor/drivers/onenand.c') diff --git a/uart-monitor/drivers/onenand.c b/uart-monitor/drivers/onenand.c deleted file mode 100644 index 7d4e454..0000000 --- a/uart-monitor/drivers/onenand.c +++ /dev/null @@ -1,203 +0,0 @@ -/* - * (C) Copyright 2005 Samsung Electronis - * Kyungmin Park - * - * 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 - */ - -#include - -#include - -#include "onenand_regs.h" - -#define onenand_readw(a) (*(volatile unsigned short *)(a)) -#define onenand_writew(v, a) ((*(volatile unsigned short *)(a)) = (u16) (v)) - -#define SAMSUNG_MFR_ID 0xEC -#define KFM1G16Q2A_DEV_ID 0x30 -#define KFN2G16Q2A_DEV_ID 0x40 - -#ifdef CFG_ONENAND - -#define THIS_ONENAND(a) (ONENAND_ADDR + (a)) - -#define READ_INTERRUPT() \ - onenand_readw(THIS_ONENAND(ONENAND_REG_INTERRUPT)) - -#define SET_EMIFS_CS_CONFIG(v) \ - (*(volatile unsigned long *)(OMAP_EMIFS_CS_CONFIG) = (v)) - -#define onenand_block_address(block) (block) -#define onenand_sector_address(page) (page << 2) -#define onenand_buffer_address() ((1 << 3) << 8) -#define onenand_bufferram_address(block) (0) - -#if defined(CFG_SYNC_BURST_READ) && defined(CONFIG_OMAP1610) -static inline void set_sync_burst_read(void) -{ - unsigned int value; - value = 0 - | (0x1 << 15) /* Read Mode: Synchronous */ - | (0x4 << 12) /* Burst Read Latency: 4 cycles */ - | (0x4 << 9) /* Burst Length: 8 word */ - | (0x1 << 7) /* RDY signal plarity */ - | (0x1 << 6) /* INT signal plarity */ - | (0x1 << 5) /* I/O buffer enable */ - ; - onenand_writew(value, THIS_ONENAND(ONENAND_REG_SYS_CFG1)); - - value = 0 - | (4 << 16) /* Synchronous Burst Read */ - | (1 << 12) /* PGWST/WELEN */ - | (1 << 8) /* WRWST */ - | (4 << 4) /* RDWST */ - | (1 << 0) /* FCLKDIV => 48MHz */ - ; - SET_EMIFS_CS_CONFIG(value); -} - -static inline void set_async_read(void) -{ - unsigned int value; - value = 0 - | (0x0 << 15) /* Read Mode: Asynchronous */ - | (0x4 << 12) /* Burst Read Latency: 4 cycles */ - | (0x0 << 9) /* Burst Length: continuous */ - | (0x1 << 7) /* RDY signal plarity */ - | (0x1 << 6) /* INT signal plarity */ - | (0x0 << 5) /* I/O buffer disable */ - ; - onenand_writew(value, THIS_ONENAND(ONENAND_REG_SYS_CFG1)); - - value = 0 - | (0 << 16) /* Asynchronous Read */ - | (1 << 12) /* PGWST/WELEN */ - | (1 << 8) /* WRWST */ - | (3 << 4) /* RDWST */ - | (1 << 0) /* FCLKDIV => 48MHz */ - ; - SET_EMIFS_CS_CONFIG(value); -} -#else -#define set_sync_burst_read(...) do { } while (0) -#define set_async_read(...) do { } while (0) -#endif - -int -onenand_chip() -{ - unsigned short mf_id, dev_id; - mf_id = (*(volatile unsigned short *)(THIS_ONENAND(ONENAND_REG_MANUFACTURER_ID))); - dev_id = (*(volatile unsigned short *)(THIS_ONENAND(ONENAND_REG_DEVICE_ID))); - - if(mf_id == SAMSUNG_MFR_ID) { - if (dev_id == KFM1G16Q2A_DEV_ID) { - printf("Detected Samsung MuxOneNAND1G Flash \r\n"); - return 0; - } else if (dev_id == KFN2G16Q2A_DEV_ID) { - printf("Detected Samsung MuxOneNAND2G Flash \r\n"); - return 0; - } else { - printf(" ONENAND Flash unsupported\r\n"); - return 1; - } - } else { - printf("ONENAND Flash Unsupported\r\n"); - return 1; - } -} - -/* read a page with ECC */ -static inline int onenand_read_page(ulong block, ulong page, u_char *buf) -{ - unsigned long *base; - -#ifndef __HAVE_ARCH_MEMCPY32 - unsigned int offset, value; - unsigned long *p; -#endif - - onenand_writew(onenand_block_address(block), - THIS_ONENAND(ONENAND_REG_START_ADDRESS1)); - - onenand_writew(onenand_sector_address(page), - THIS_ONENAND(ONENAND_REG_START_ADDRESS8)); - - onenand_writew(onenand_buffer_address(), - THIS_ONENAND(ONENAND_REG_START_BUFFER)); - - onenand_writew(onenand_bufferram_address(block), - THIS_ONENAND(ONENAND_REG_START_ADDRESS2)); - - onenand_writew(ONENAND_INT_CLEAR, THIS_ONENAND(ONENAND_REG_INTERRUPT)); - - onenand_writew(ONENAND_CMD_READ, THIS_ONENAND(ONENAND_REG_COMMAND)); - -#ifndef __HAVE_ARCH_MEMCPY32 - p = (unsigned long *) buf; -#endif - base = (unsigned long *) (ONENAND_ADDR + ONENAND_DATARAM); - - while (!(READ_INTERRUPT() & ONENAND_INT_MASTER)) - continue; - -#ifdef __HAVE_ARCH_MEMCPY32 - /* 32 bytes boundary memory copy */ - memcpy32(buf, base, ONENAND_PAGE_SIZE); -#else - for (offset = 0; offset < (ONENAND_PAGE_SIZE >> 2); offset++) { - value = *(base + offset); - *p++ = value; - } -#endif - - return 0; -} - -#define ONENAND_START_PAGE 0 -#define ONENAND_PAGES_PER_BLOCK 64 - -/** - * onenand_read_block - Read a block data to buf - * @return 0 on sucess - */ - -int onenand_read_block(unsigned char *buf, ulong block) -{ - int page, offset = 0; - - set_sync_burst_read(); - - /* NOTE: you must read page from page 1 of block 0 */ - /* read the block page by page*/ - for (page = ONENAND_START_PAGE; - page < ONENAND_PAGES_PER_BLOCK; page++) { - - onenand_read_page(block, page, buf + offset); - - offset += ONENAND_PAGE_SIZE; - } - - set_async_read(); - - return 0; -} - -#endif /* CFG_ONENAND */ -- cgit v1.1