diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/misc/Makefile | 1 | ||||
| -rw-r--r-- | drivers/misc/ds4510.c | 424 | ||||
| -rw-r--r-- | drivers/mtd/jedec_flash.c | 14 | ||||
| -rw-r--r-- | drivers/mtd/spi/atmel.c | 3 | ||||
| -rw-r--r-- | drivers/mtd/spi/stmicro.c | 3 | ||||
| -rw-r--r-- | drivers/serial/Makefile | 2 | ||||
| -rwxr-xr-x | drivers/serial/vct.c (renamed from drivers/serial/vcth.c) | 8 |
7 files changed, 450 insertions, 5 deletions
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index 01e0f39..ea2bf87 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -26,6 +26,7 @@ include $(TOPDIR)/config.mk LIB := $(obj)libmisc.a COBJS-$(CONFIG_ALI152X) += ali512x.o +COBJS-$(CONFIG_DS4510) += ds4510.o COBJS-$(CONFIG_FSL_LAW) += fsl_law.o COBJS-$(CONFIG_NS87308) += ns87308.o COBJS-$(CONFIG_STATUS_LED) += status_led.o diff --git a/drivers/misc/ds4510.c b/drivers/misc/ds4510.c new file mode 100644 index 0000000..4cd2fc2 --- /dev/null +++ b/drivers/misc/ds4510.c @@ -0,0 +1,424 @@ +/* + * Copyright 2008 Extreme Engineering Solutions, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + * + * 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 + */ + +/* + * Driver for DS4510, a CPU supervisor with integrated EEPROM, SRAM, + * and 4 programmable non-volatile GPIO pins. + */ + +#include <common.h> +#include <i2c.h> +#include <command.h> +#include <ds4510.h> + +/* Default to an address that hopefully won't corrupt other i2c devices */ +#ifndef CONFIG_SYS_I2C_DS4510_ADDR +#define CONFIG_SYS_I2C_DS4510_ADDR (~0) +#endif + +enum { + DS4510_CMD_INFO, + DS4510_CMD_DEVICE, + DS4510_CMD_NV, + DS4510_CMD_RSTDELAY, + DS4510_CMD_OUTPUT, + DS4510_CMD_INPUT, + DS4510_CMD_PULLUP, + DS4510_CMD_EEPROM, + DS4510_CMD_SEEPROM, + DS4510_CMD_SRAM, +}; + +/* + * Write to DS4510, taking page boundaries into account + */ +int ds4510_mem_write(uint8_t chip, int offset, uint8_t *buf, int count) +{ + int wrlen; + int i = 0; + + do { + wrlen = DS4510_EEPROM_PAGE_SIZE - + DS4510_EEPROM_PAGE_OFFSET(offset); + if (count < wrlen) + wrlen = count; + if (i2c_write(chip, offset, 1, &buf[i], wrlen)) + return -1; + + /* + * This delay isn't needed for SRAM writes but shouldn't delay + * things too much, so do it unconditionally for simplicity + */ + udelay(DS4510_EEPROM_PAGE_WRITE_DELAY_MS * 1000); + count -= wrlen; + offset += wrlen; + i += wrlen; + } while (count > 0); + + return 0; +} + +/* + * General read from DS4510 + */ +int ds4510_mem_read(uint8_t chip, int offset, uint8_t *buf, int count) +{ + return i2c_read(chip, offset, 1, buf, count); +} + +/* + * Write SEE bit in config register. + * nv = 0 - Writes to SEEPROM registers behave like EEPROM + * nv = 1 - Writes to SEEPROM registers behave like SRAM + */ +int ds4510_see_write(uint8_t chip, uint8_t nv) +{ + uint8_t data; + + if (i2c_read(chip, DS4510_CFG, 1, &data, 1)) + return -1; + + if (nv) /* Treat SEEPROM bits as EEPROM */ + data &= ~DS4510_CFG_SEE; + else /* Treat SEEPROM bits as SRAM */ + data |= DS4510_CFG_SEE; + + return ds4510_mem_write(chip, DS4510_CFG, &data, 1); +} + +/* + * Write de-assertion of reset signal delay + */ +int ds4510_rstdelay_write(uint8_t chip, uint8_t delay) +{ + uint8_t data; + + if (i2c_read(chip, DS4510_RSTDELAY, 1, &data, 1)) + return -1; + + data &= ~DS4510_RSTDELAY_MASK; + data |= delay & DS4510_RSTDELAY_MASK; + + return ds4510_mem_write(chip, DS4510_RSTDELAY, &data, 1); +} + +/* + * Write pullup characteristics of IO pins + */ +int ds4510_pullup_write(uint8_t chip, uint8_t val) +{ + val &= DS4510_IO_MASK; + + return ds4510_mem_write(chip, DS4510_PULLUP, (uint8_t *)&val, 1); +} + +/* + * Read pullup characteristics of IO pins + */ +int ds4510_pullup_read(uint8_t chip) +{ + uint8_t val; + + if (i2c_read(chip, DS4510_PULLUP, 1, &val, 1)) + return -1; + + return val & DS4510_IO_MASK; +} + +/* + * Write drive level of IO pins + */ +int ds4510_gpio_write(uint8_t chip, uint8_t val) +{ + uint8_t data; + int i; + + for (i = 0; i < DS4510_NUM_IO; i++) { + if (i2c_read(chip, DS4510_IO0 - i, 1, &data, 1)) + return -1; + + if (val & (0x1 << i)) + data |= 0x1; + else + data &= ~0x1; + + if (ds4510_mem_write(chip, DS4510_IO0 - i, &data, 1)) + return -1; + } + + return 0; +} + +/* + * Read drive level of IO pins + */ +int ds4510_gpio_read(uint8_t chip) +{ + uint8_t data; + int val = 0; + int i; + + for (i = 0; i < DS4510_NUM_IO; i++) { + if (i2c_read(chip, DS4510_IO0 - i, 1, &data, 1)) + return -1; + + if (data & 1) + val |= (1 << i); + } + + return val; +} + +/* + * Read physical level of IO pins + */ +int ds4510_gpio_read_val(uint8_t chip) +{ + uint8_t val; + + if (i2c_read(chip, DS4510_IO_STATUS, 1, &val, 1)) + return -1; + + return val & DS4510_IO_MASK; +} + +#ifdef CONFIG_CMD_DS4510 +#ifdef CONFIG_CMD_DS4510_INFO +/* + * Display DS4510 information + */ +static int ds4510_info(uint8_t chip) +{ + int i; + int tmp; + uint8_t data; + + printf("DS4510 @ 0x%x:\n\n", chip); + + if (i2c_read(chip, DS4510_RSTDELAY, 1, &data, 1)) + return -1; + printf("rstdelay = 0x%x\n\n", data & DS4510_RSTDELAY_MASK); + + if (i2c_read(chip, DS4510_CFG, 1, &data, 1)) + return -1; + printf("config = 0x%x\n", data); + printf(" /ready = %d\n", data & DS4510_CFG_READY ? 1 : 0); + printf(" trip pt = %d\n", data & DS4510_CFG_TRIP_POINT ? 1 : 0); + printf(" rst sts = %d\n", data & DS4510_CFG_RESET ? 1 : 0); + printf(" /see = %d\n", data & DS4510_CFG_SEE ? 1 : 0); + printf(" swrst = %d\n\n", data & DS4510_CFG_SWRST ? 1 : 0); + + printf("gpio pins: 3210\n"); + printf("---------------\n"); + printf("pullup "); + + tmp = ds4510_pullup_read(chip); + if (tmp == -1) + return tmp; + for (i = DS4510_NUM_IO - 1; i >= 0; i--) + printf("%d", (tmp & (1 << i)) ? 1 : 0); + printf("\n"); + + printf("driven "); + tmp = ds4510_gpio_read(chip); + if (tmp == -1) + return -1; + for (i = DS4510_NUM_IO - 1; i >= 0; i--) + printf("%d", (tmp & (1 << i)) ? 1 : 0); + printf("\n"); + + printf("read "); + tmp = ds4510_gpio_read_val(chip); + if (tmp == -1) + return -1; + for (i = DS4510_NUM_IO - 1; i >= 0; i--) + printf("%d", (tmp & (1 << i)) ? 1 : 0); + printf("\n"); + + return 0; +} +#endif /* CONFIG_CMD_DS4510_INFO */ + +cmd_tbl_t cmd_ds4510[] = { + U_BOOT_CMD_MKENT(device, 3, 0, (void *)DS4510_CMD_DEVICE, "", ""), + U_BOOT_CMD_MKENT(nv, 3, 0, (void *)DS4510_CMD_NV, "", ""), + U_BOOT_CMD_MKENT(output, 4, 0, (void *)DS4510_CMD_OUTPUT, "", ""), + U_BOOT_CMD_MKENT(input, 3, 0, (void *)DS4510_CMD_INPUT, "", ""), + U_BOOT_CMD_MKENT(pullup, 4, 0, (void *)DS4510_CMD_PULLUP, "", ""), +#ifdef CONFIG_CMD_DS4510_INFO + U_BOOT_CMD_MKENT(info, 2, 0, (void *)DS4510_CMD_INFO, "", ""), +#endif +#ifdef CONFIG_CMD_DS4510_RST + U_BOOT_CMD_MKENT(rstdelay, 3, 0, (void *)DS4510_CMD_RSTDELAY, "", ""), +#endif +#ifdef CONFIG_CMD_DS4510_MEM + U_BOOT_CMD_MKENT(eeprom, 6, 0, (void *)DS4510_CMD_EEPROM, "", ""), + U_BOOT_CMD_MKENT(seeprom, 6, 0, (void *)DS4510_CMD_SEEPROM, "", ""), + U_BOOT_CMD_MKENT(sram, 6, 0, (void *)DS4510_CMD_SRAM, "", ""), +#endif +}; + +int do_ds4510(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + static uint8_t chip = CONFIG_SYS_I2C_DS4510_ADDR; + cmd_tbl_t *c; + ulong ul_arg2 = 0; + ulong ul_arg3 = 0; + int tmp; +#ifdef CONFIG_CMD_DS4510_MEM + ulong addr; + ulong off; + ulong cnt; + int end; + int (*rw_func)(uint8_t, int, uint8_t *, int); +#endif + + c = find_cmd_tbl(argv[1], cmd_ds4510, ARRAY_SIZE(cmd_ds4510)); + + /* All commands but "device" require 'maxargs' arguments */ + if (!c || !((argc == (c->maxargs)) || + (((int)c->cmd == DS4510_CMD_DEVICE) && + (argc == (c->maxargs - 1))))) { + printf("Usage:\n%s\n", cmdtp->usage); + return 1; + } + + /* arg2 used as chip addr and pin number */ + if (argc > 2) + ul_arg2 = simple_strtoul(argv[2], NULL, 16); + + /* arg3 used as output/pullup value */ + if (argc > 3) + ul_arg3 = simple_strtoul(argv[3], NULL, 16); + + switch ((int)c->cmd) { + case DS4510_CMD_DEVICE: + if (argc == 3) + chip = ul_arg2; + printf("Current device address: 0x%x\n", chip); + return 0; + case DS4510_CMD_NV: + return ds4510_see_write(chip, ul_arg2); + case DS4510_CMD_OUTPUT: + tmp = ds4510_gpio_read(chip); + if (tmp == -1) + return -1; + if (ul_arg3) + tmp |= (1 << ul_arg2); + else + tmp &= ~(1 << ul_arg2); + return ds4510_gpio_write(chip, tmp); + case DS4510_CMD_INPUT: + tmp = ds4510_gpio_read_val(chip); + if (tmp == -1) + return -1; + return (tmp & (1 << ul_arg2)) != 0; + case DS4510_CMD_PULLUP: + tmp = ds4510_pullup_read(chip); + if (tmp == -1) + return -1; + if (ul_arg3) + tmp |= (1 << ul_arg2); + else + tmp &= ~(1 << ul_arg2); + return ds4510_pullup_write(chip, tmp); +#ifdef CONFIG_CMD_DS4510_INFO + case DS4510_CMD_INFO: + return ds4510_info(chip); +#endif +#ifdef CONFIG_CMD_DS4510_RST + case DS4510_CMD_RSTDELAY: + return ds4510_rstdelay_write(chip, ul_arg2); +#endif +#ifdef CONFIG_CMD_DS4510_MEM + case DS4510_CMD_EEPROM: + end = DS4510_EEPROM + DS4510_EEPROM_SIZE; + off = DS4510_EEPROM; + break; + case DS4510_CMD_SEEPROM: + end = DS4510_SEEPROM + DS4510_SEEPROM_SIZE; + off = DS4510_SEEPROM; + break; + case DS4510_CMD_SRAM: + end = DS4510_SRAM + DS4510_SRAM_SIZE; + off = DS4510_SRAM; + break; +#endif + default: + /* We should never get here... */ + return 1; + } + +#ifdef CONFIG_CMD_DS4510_MEM + /* Only eeprom, seeprom, and sram commands should make it here */ + if (strcmp(argv[2], "read") == 0) { + rw_func = ds4510_mem_read; + } else if (strcmp(argv[2], "write") == 0) { + rw_func = ds4510_mem_write; + } else { + printf("Usage:\n%s\n", cmdtp->usage); + return 1; + } + + addr = simple_strtoul(argv[3], NULL, 16); + off += simple_strtoul(argv[4], NULL, 16); + cnt = simple_strtoul(argv[5], NULL, 16); + + if ((off + cnt) > end) { + printf("ERROR: invalid len\n"); + return -1; + } + + return rw_func(chip, off, (uint8_t *)addr, cnt); +#endif +} + +U_BOOT_CMD( + ds4510, 6, 1, do_ds4510, + "ds4510 - ds4510 eeprom/seeprom/sram/gpio access\n", + "device [dev]\n" + " - show or set current device address\n" +#ifdef CONFIG_CMD_DS4510_INFO + "ds4510 info\n" + " - display ds4510 info\n" +#endif + "ds4510 output pin 0|1\n" + " - set pin low or high-Z\n" + "ds4510 input pin\n" + " - read value of pin\n" + "ds4510 pullup pin 0|1\n" + " - disable/enable pullup on specified pin\n" + "ds4510 nv 0|1\n" + " - make gpio and seeprom writes volatile/non-volatile\n" +#ifdef CONFIG_CMD_DS4510_RST + "ds4510 rstdelay 0-3\n" + " - set reset output delay\n" +#endif +#ifdef CONFIG_CMD_DS4510_MEM + "ds4510 eeprom read addr off cnt\n" + "ds4510 eeprom write addr off cnt\n" + " - read/write 'cnt' bytes at EEPROM offset 'off'\n" + "ds4510 seeprom read addr off cnt\n" + "ds4510 seeprom write addr off cnt\n" + " - read/write 'cnt' bytes at SRAM-shadowed EEPROM offset 'off'\n" + "ds4510 sram read addr off cnt\n" + "ds4510 sram write addr off cnt\n" + " - read/write 'cnt' bytes at SRAM offset 'off'\n" +#endif +); +#endif /* CONFIG_CMD_DS4510 */ diff --git a/drivers/mtd/jedec_flash.c b/drivers/mtd/jedec_flash.c index 226e1e4..2d99d4d 100644 --- a/drivers/mtd/jedec_flash.c +++ b/drivers/mtd/jedec_flash.c @@ -215,6 +215,20 @@ static const struct amd_flash_info jedec_table[] = { ERASEINFO(0x01000,128), } }, + { + .mfr_id = STM_MANUFACT, + .dev_id = STM_ID_M29W040B, + .name = "ST Micro M29W040B", + .uaddr = { + [0] = MTD_UADDR_0x0555_0x02AA /* x8 */ + }, + .DevSize = SIZE_512KiB, + .CmdSet = P_ID_AMD_STD, + .NumEraseRegions= 1, + .regions = { + ERASEINFO(0x10000,8), + } + }, #endif #ifdef CONFIG_SYS_FLASH_LEGACY_512Kx16 { diff --git a/drivers/mtd/spi/atmel.c b/drivers/mtd/spi/atmel.c index 10fcf0c..a5f51ca 100644 --- a/drivers/mtd/spi/atmel.c +++ b/drivers/mtd/spi/atmel.c @@ -39,9 +39,10 @@ struct atmel_spi_flash_params { const char *name; }; +/* spi_flash needs to be first so upper layers can free() it */ struct atmel_spi_flash { - const struct atmel_spi_flash_params *params; struct spi_flash flash; + const struct atmel_spi_flash_params *params; }; static inline struct atmel_spi_flash * diff --git a/drivers/mtd/spi/stmicro.c b/drivers/mtd/spi/stmicro.c index 86324e4..e7dda91 100644 --- a/drivers/mtd/spi/stmicro.c +++ b/drivers/mtd/spi/stmicro.c @@ -64,9 +64,10 @@ struct stmicro_spi_flash_params { const char *name; }; +/* spi_flash needs to be first so upper layers can free() it */ struct stmicro_spi_flash { - const struct stmicro_spi_flash_params *params; struct spi_flash flash; + const struct stmicro_spi_flash_params *params; }; static inline struct stmicro_spi_flash *to_stmicro_spi_flash(struct spi_flash diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile index 17235ff..c7a1882 100644 --- a/drivers/serial/Makefile +++ b/drivers/serial/Makefile @@ -38,7 +38,7 @@ COBJS-$(CONFIG_PL011_SERIAL) += serial_pl01x.o COBJS-$(CONFIG_XILINX_UARTLITE) += serial_xuartlite.o COBJS-$(CONFIG_SCIF_CONSOLE) += serial_sh.o COBJS-$(CONFIG_USB_TTY) += usbtty.o -COBJS-$(CONFIG_VCTH_SERIAL) += vcth.o +COBJS-$(CONFIG_VCT_SERIAL) += vct.o COBJS := $(sort $(COBJS-y)) SRCS := $(COBJS:.o=.c) diff --git a/drivers/serial/vcth.c b/drivers/serial/vct.c index 2c847d0..556c114 100755 --- a/drivers/serial/vcth.c +++ b/drivers/serial/vct.c @@ -21,7 +21,11 @@ #include <common.h> #include <asm/io.h> +#ifdef CONFIG_VCT_PLATINUMAVC +#define UART_1_BASE 0xBDC30000 +#else #define UART_1_BASE 0xBF89C000 +#endif #define UART_RBR_OFF 0x00 /* receiver buffer reg */ #define UART_THR_OFF 0x00 /* transmit holding reg */ @@ -53,7 +57,7 @@ #define UART_7DATA_BITS 0x0002 /* 7 [bits] 1 bits 2 */ #define UART_8DATA_BITS 0x0003 /* 8 [bits] 1 bits 2 */ -static void vcth_uart_set_baud_rate(u32 address, u32 dh, u32 dl) +static void vct_uart_set_baud_rate(u32 address, u32 dh, u32 dl) { u32 val = __raw_readl(UART_1_BASE + UART_LCR_OFF); @@ -74,7 +78,7 @@ static void vcth_uart_set_baud_rate(u32 address, u32 dh, u32 dl) int serial_init(void) { __raw_writel(UART_DIS_ALL_INTER, UART_1_BASE + UART_IER_OFF); - vcth_uart_set_baud_rate(UART_1_BASE, 0, UART_115200_BDR); + vct_uart_set_baud_rate(UART_1_BASE, 0, UART_115200_BDR); __raw_writel(UART_8DATA_BITS, UART_1_BASE + UART_LCR_OFF); return 0; |