-/*\r
- * (C) Copyright 2010 Samsung Electronics\r
- *\r
- * See file CREDITS for list of people who contributed to this\r
- * project.\r
- *\r
- * This program is free software; you can redistribute it and/or\r
- * modify it under the terms of the GNU General Public License as\r
- * published by the Free Software Foundation; either version 2 of\r
- * the License, or (at your option) any later version.\r
- *\r
- * This program is distributed in the hope that it will be useful,\r
- * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
- * GNU General Public License for more details.\r
- *\r
- * You should have received a copy of the GNU General Public License\r
- * along with this program; if not, write to the Free Software\r
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,\r
- * MA 02111-1307 USA\r
- */\r
-\r
-#include <common.h>\r
-#include <linux/mtd/compat.h>\r
-#include <linux/mtd/mtd.h>\r
-#include <linux/mtd/onenand.h>\r
-#include <asm/io.h>\r
-#include <asm/arch/gpio.h>\r
-#include <asm/arch/keypad.h>\r
-#include "../../../onenand.h"\r
-\r
-typedef int (init_fnc_t) (void);\r
-\r
-DECLARE_GLOBAL_DATA_PTR;\r
-\r
-static struct s5pc110_gpio *s5pc110_gpio;\r
-\r
-static void sdelay(unsigned long usec)\r
-{\r
- ulong kv;\r
-\r
- do {\r
- kv = 0x100000;\r
- while (kv-- > 0) {\r
- }\r
- usec--;\r
- } while(usec);\r
-}\r
-\r
-static int check_keypad(void)\r
-{\r
- unsigned int condition = 0;\r
- unsigned int reg, value;\r
- unsigned int col_num, row_num;\r
- unsigned int col_mask;\r
- unsigned int col_mask_shift;\r
- unsigned int row_state[4] = {0, 0, 0, 0};\r
- unsigned int i;\r
-\r
- /* board is limo universal */\r
-\r
- row_num = 2;\r
- col_num = 3;\r
-\r
- for (i = 0; i < sizeof(row_state)/sizeof(int); i++) {\r
- row_state[i] = 0;\r
- }\r
- \r
- for (i = 0; i < row_num; i++) {\r
- /* Set GPH3[3:0] to KP_ROW[3:0] */\r
- gpio_cfg_pin(&s5pc110_gpio->gpio_h3, i, 0x3);\r
- gpio_set_pull(&s5pc110_gpio->gpio_h3, i, GPIO_PULL_UP);\r
- }\r
-\r
- for (i = 0; i < col_num; i++)\r
- /* Set GPH2[3:0] to KP_COL[3:0] */\r
- gpio_cfg_pin(&s5pc110_gpio->gpio_h2, i, 0x3);\r
-\r
- reg = S5PC110_KEYPAD_BASE;\r
- col_mask = S5PC110_KEYIFCOLEN_MASK;\r
- col_mask_shift = 8;\r
-\r
- /* KEYIFCOL reg clear */\r
- writel(0, reg + S5PC1XX_KEYIFCOL_OFFSET);\r
-\r
- /* key_scan */\r
- for (i = 0; i < col_num; i++) {\r
- value = col_mask;\r
- value &= ~(1 << i) << col_mask_shift;\r
-\r
- writel(value, reg + S5PC1XX_KEYIFCOL_OFFSET);\r
- sdelay(1000);\r
-\r
- value = readl(reg + S5PC1XX_KEYIFROW_OFFSET);\r
- row_state[i] = ~value & ((1 << row_num) - 1);\r
- }\r
-\r
- /* KEYIFCOL reg clear */\r
- writel(0, reg + S5PC1XX_KEYIFCOL_OFFSET);\r
-\r
- /* check volume up/down */\r
- if ((row_state[1] & 0x3) == 0x3) {\r
- condition = 1;\r
- }\r
-\r
- return condition;\r
-}\r
-\r
-static int check_block(void)\r
-{\r
- struct onenand_op *onenand_ops = onenand_get_interface();\r
- struct mtd_info *mtd = onenand_ops->mtd;\r
- struct onenand_chip *this = mtd->priv;\r
- int i;\r
- int page_to_check = 4;\r
- int ret, retlen = 0;\r
- ulong blocksize = 1 << this->erase_shift;\r
- ulong pagesize = 1 << this->page_shift;\r
- u_char *down_ram_addr = (unsigned char *)CONFIG_SYS_DOWN_ADDR;\r
- ulong uboot_start_addr = CONFIG_RECOVERY_BOOTSTART_BLOCK << this->erase_shift;\r
- u_char verify_buf[0x10];\r
-\r
- onenand_ops->read(uboot_start_addr, blocksize, &retlen, down_ram_addr, 0);\r
- if (retlen != blocksize)\r
- {\r
- return 1;\r
- }\r
-\r
- memset(verify_buf, 0xFF, sizeof(verify_buf));\r
-\r
- for (i = 0; i < page_to_check; i++) {\r
- ret = memcmp(down_ram_addr + pagesize*i, verify_buf, sizeof(verify_buf));\r
- if (ret)\r
- {\r
- break;\r
- }\r
- }\r
-\r
- if (i == page_to_check) {\r
- return 1;\r
- }\r
- \r
- return 0;\r
-}\r
-\r
-int board_check_condition(void)\r
-{\r
- if (check_keypad()) {\r
- return 1;\r
- }\r
- \r
- if (check_block()) {\r
- return 1;\r
- }\r
-\r
- return 0;\r
-}\r
-\r
-int board_load_uboot(unsigned char *buf)\r
-{\r
- struct mtd_info *mtd = &onenand_mtd;\r
- struct onenand_chip *this = mtd->priv;\r
- int offset;\r
- size_t size;\r
- size_t ret;\r
-\r
- offset = CONFIG_RECOVERY_BOOTSTART_BLOCK << this->erase_shift;\r
- size = CONFIG_SYS_MONITOR_LEN;\r
-\r
- mtd->read(mtd, offset, size, &ret, buf);\r
-\r
- if (size != ret) {\r
- return -1;\r
- }\r
- \r
- return 0;\r
-}\r
-\r
-int board_update_uboot(void)\r
-{\r
- return 0;\r
-}\r
-\r
-void board_recovery_init(void)\r
-{\r
- /* Set Initial global variables */\r
- s5pc110_gpio = (struct s5pc110_gpio *) S5PC110_GPIO_BASE;\r
-}\r
-\r
+/*
+ * Copyright (C) 2009-2010 Samsung Electronics
+ */
+
+#include <common.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/onenand.h>
+#include <asm/io.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/keypad.h>
+#include "recovery.h"
+#include "onenand.h"
+
+#ifdef RECOVERY_DEBUG
+#define PUTS(s) serial_puts(DEBUG_MARK""s)
+#else
+#define PUTS(s)
+#endif
+
+typedef int (init_fnc_t) (void);
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static struct s5pc110_gpio *gpio_base =
+ (struct s5pc110_gpio *) S5PC110_GPIO_BASE;
+
+static void sdelay(unsigned long usec)
+{
+ ulong kv;
+
+ do {
+ kv = 0x100000;
+ while (kv)
+ kv--;
+ usec--;
+ } while (usec);
+}
+
+static int check_keypad(void)
+{
+ unsigned int condition = 0;
+ unsigned int reg, value;
+ unsigned int col_num, row_num;
+ unsigned int col_mask;
+ unsigned int col_mask_shift;
+ unsigned int row_state[4] = {0, 0, 0, 0};
+ unsigned int i;
+
+ /* board is limo universal */
+
+ row_num = 2;
+ col_num = 3;
+
+ for (i = 0; i < sizeof(row_state)/sizeof(int); i++)
+ row_state[i] = 0;
+
+ for (i = 0; i < row_num; i++) {
+ /* Set GPH3[3:0] to KP_ROW[3:0] */
+ gpio_cfg_pin(&gpio_base->gpio_h3, i, 0x3);
+ gpio_set_pull(&gpio_base->gpio_h3, i, GPIO_PULL_UP);
+ }
+
+ for (i = 0; i < col_num; i++)
+ /* Set GPH2[3:0] to KP_COL[3:0] */
+ gpio_cfg_pin(&gpio_base->gpio_h2, i, 0x3);
+
+ reg = S5PC110_KEYPAD_BASE;
+ col_mask = S5PC110_KEYIFCOLEN_MASK;
+ col_mask_shift = 8;
+
+ /* KEYIFCOL reg clear */
+ writel(0, reg + S5PC1XX_KEYIFCOL_OFFSET);
+
+ /* key_scan */
+ for (i = 0; i < col_num; i++) {
+ value = col_mask;
+ value &= ~(1 << i) << col_mask_shift;
+
+ writel(value, reg + S5PC1XX_KEYIFCOL_OFFSET);
+ sdelay(1000);
+
+ value = readl(reg + S5PC1XX_KEYIFROW_OFFSET);
+ row_state[i] = ~value & ((1 << row_num) - 1);
+ }
+
+ /* KEYIFCOL reg clear */
+ writel(0, reg + S5PC1XX_KEYIFCOL_OFFSET);
+
+ /* check volume up/down */
+ if ((row_state[1] & 0x3) == 0x3)
+ condition = 1;
+
+ return condition;
+}
+
+static int check_block(void)
+{
+ struct onenand_op *onenand_ops = onenand_get_interface();
+ struct mtd_info *mtd = onenand_ops->mtd;
+ struct onenand_chip *this = mtd->priv;
+ int i;
+ int retlen = 0;
+ u32 from = CONFIG_RECOVERY_UBOOT_BLOCK << this->erase_shift;
+ u32 len = 1 << this->erase_shift;
+ u32 *buf = (u32 *)CONFIG_SYS_DOWN_ADDR;
+
+ /* check first page of bootloader*/
+ onenand_ops->read(from, len, (ssize_t *)&retlen, (u_char *)buf, 0);
+ if (retlen != len)
+ return 1;
+
+ for (i = 0; i < (this->writesize / sizeof(this->writesize)); i++)
+ if (*(buf + i) != 0xffffffff)
+ return 0;
+
+ return 1;
+}
+
+int board_check_condition(void)
+{
+ if (check_keypad()) {
+ PUTS("check: manual\n");
+ return 1;
+ }
+
+ if (check_block()) {
+ PUTS("check: bootloader broken\n");
+ return 2;
+ }
+
+ return 0;
+}
+
+int board_load_bootloader(unsigned char *buf)
+{
+ struct mtd_info *mtd = &onenand_mtd;
+ struct onenand_chip *this = mtd->priv;
+ u32 ofs, len, retlen;
+
+ ofs = CONFIG_RECOVERY_UBOOT_BLOCK << this->erase_shift;
+ len = CONFIG_SYS_MONITOR_LEN;
+
+ mtd->read(mtd, ofs, len, &retlen, buf);
+
+ if (len != retlen)
+ return -1;
+
+ return 0;
+}
+
+int board_lock_recoveryblock(void)
+{
+ struct mtd_info *mtd = &onenand_mtd;
+ struct onenand_chip *this = mtd->priv;
+ u32 ofs = 0;
+ u32 len = CONFIG_RECOVERY_UBOOT_BLOCK << this->erase_shift;
+ int ret = 0;
+
+ /* lock-tight the recovery block */
+ if (this->lock_tight != NULL)
+ ret = this->lock_tight(mtd, ofs, len);
+
+ return ret;
+}
+
+void board_update_init(void)
+{
+ struct mtd_info *mtd = &onenand_mtd;
+ struct onenand_chip *this = mtd->priv;
+
+ /* Unlock whole block */
+ this->unlock_all(mtd);
+}
+
+int board_update_image(u32 *buf, u32 len)
+{
+ struct onenand_op *onenand_ops = onenand_get_interface();
+ struct mtd_info *mtd = &onenand_mtd;
+ struct onenand_chip *this = mtd->priv;
+ u32 ofs;
+ u32 ipl_addr = 0;
+ u32 ipl_edge = CONFIG_ONENAND_START_PAGE << this->page_shift;
+ u32 recovery_addr = ipl_edge;
+ u32 recovery_edge = CONFIG_RECOVERY_UBOOT_BLOCK << this->erase_shift;
+ u32 bootloader_addr = recovery_edge;
+ u32 bootloader_edge = CONFIG_RECOVERY_BOOT_BLOCKS << this->erase_shift;
+ int ret, retlen;
+
+ if (len > bootloader_addr) {
+ if (*(buf + bootloader_addr/sizeof(buf)) == 0xea000012) {
+ /* case: IPL + Recovery + bootloader */
+ PUTS("target: ipl + recovery + bootloader\n");
+ ofs = ipl_addr;
+ /* len = bootloader_edge; */
+ } else {
+ /* case: unknown format */
+ PUTS("target: unknown\n");
+ return 1;
+ }
+ } else {
+ if (*(buf + recovery_addr/sizeof(buf)) == 0xea000012 &&
+ *(buf + recovery_addr/sizeof(buf) - 1) == 0x00000000) {
+ /* case: old image (IPL + bootloader) */
+ PUTS("target: ipl + bootloader (old type)\n");
+ ofs = ipl_addr;
+ /* len = recovery_edge; */
+ } else {
+ /* case: bootloader only */
+ PUTS("target: bootloader\n");
+ ofs = bootloader_addr;
+ /* len = bootloader_edge - recovery_edge; */
+ }
+ }
+
+ /* Erase */
+ ret = onenand_ops->erase(ofs, len, 0);
+ if (ret)
+ return ret;
+
+ /* Write */
+ onenand_ops->write(ofs, len, (ssize_t *)&retlen, (u_char *)buf);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+void board_recovery_init(void)
+{
+ /* set GPIO to enable UART2 */
+ gpio_cfg_pin(&gpio_base->gpio_a1, 0, 0x2);
+ gpio_cfg_pin(&gpio_base->gpio_a1, 1, 0x2);
+
+ /* UART_SEL MP0_5[7] at S5PC110 */
+ gpio_direction_output(&gpio_base->gpio_mp0_5, 7, 0x1);
+ gpio_set_pull(&gpio_base->gpio_mp0_5, 7, GPIO_PULL_DOWN);
+}
projects / kernel / u-boot.git / blobdiff