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Diffstat (limited to 'board/cssi/common/common.c')
| -rw-r--r-- | board/cssi/common/common.c | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/board/cssi/common/common.c b/board/cssi/common/common.c new file mode 100644 index 0000000..7ecf772 --- /dev/null +++ b/board/cssi/common/common.c @@ -0,0 +1,219 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2010-2020 CS Group + * Charles Frey <charles.frey@c-s.fr> + * Florent Trinh Thai <florent.trinh-thai@c-s.fr> + * Christophe Leroy <christophe.leroy@c-s.fr> + * + * Common specific routines for the CS Group boards + */ + +#include <dm.h> +#include <env.h> +#include <fdt_support.h> +#include <hang.h> +#include <spi.h> +#include <linux/delay.h> +#include <asm/io.h> + +#include "common.h" + +#define ADDR_FPGA_R_BASE ((unsigned char __iomem *)CONFIG_FPGA_BASE) + +#define FPGA_R_ACQ_AL_FAV 0x04 + +#define TYPE_MCR 0x22 +#define TYPE_MIAE 0x23 + +#define FAR_CASRSA 2 +#define FAR_VGOIP 4 +#define FAV_CLA 7 +#define FAV_SRSA 8 + +#define SPI_EEPROM_READ 0x03 + +static int fdt_set_node_and_value(void *blob, char *node, const char *prop, + void *var, int size) +{ + int ret, off; + + off = fdt_path_offset(blob, node); + + if (off < 0) { + printf("Cannot find %s node err:%s\n", node, fdt_strerror(off)); + + return off; + } + + ret = fdt_setprop(blob, off, prop, var, size); + + if (ret < 0) + printf("Cannot set %s/%s prop err: %s\n", node, prop, fdt_strerror(ret)); + + return ret; +} + +/* Checks front/rear id and remove unneeded nodes from the blob */ +static void ft_cleanup(void *blob, unsigned long id, const char *prop, const char *compatible) +{ + int off; + + off = fdt_node_offset_by_compatible(blob, -1, compatible); + + while (off != -FDT_ERR_NOTFOUND) { + const struct fdt_property *ids; + int nb_ids, idx; + int tmp = -1; + + ids = fdt_get_property(blob, off, prop, &nb_ids); + + for (idx = 0; idx < nb_ids; idx += 4) { + if (*((uint32_t *)&ids->data[idx]) == id) + break; + } + + if (idx >= nb_ids) + fdt_del_node(blob, off); + else + tmp = off; + + off = fdt_node_offset_by_compatible(blob, tmp, compatible); + } + + fdt_set_node_and_value(blob, "/", prop, &id, sizeof(uint32_t)); +} + +int read_eeprom(u8 *din, int len) +{ + struct udevice *eeprom; + struct spi_slave *slave; + uchar dout[3] = {SPI_EEPROM_READ, 0, 0}; + int ret; + + ret = uclass_get_device(UCLASS_SPI, 0, &eeprom); + if (ret) + return ret; + + ret = _spi_get_bus_and_cs(0, 0, 1000000, 0, "spi_generic_drv", + "generic_0:0", &eeprom, &slave); + if (ret) + return ret; + + ret = spi_claim_bus(slave); + + ret = spi_xfer(slave, sizeof(dout) << 3, dout, NULL, SPI_XFER_BEGIN); + if (ret) + return ret; + + ret = spi_xfer(slave, len << 3, NULL, din, SPI_XFER_END); + if (ret) + return ret; + + spi_release_bus(slave); + + return 0; +} + +int ft_board_setup_common(void *blob) +{ + u8 far_id, fav_id; + + if (in_8(ADDR_FPGA_R_BASE) != TYPE_MIAE) + return 0; + + far_id = in_8(ADDR_FPGA_R_BASE + 0x43) >> 5; + ft_cleanup(blob, far_id, "far-id", "cs,mia-far"); + + fav_id = in_8(ADDR_FPGA_R_BASE + 0x44) >> 5; + + if (far_id == FAR_CASRSA && fav_id == FAV_CLA) + fav_id = FAV_SRSA; + + ft_cleanup(blob, fav_id, "fav-id", "cs,mia-fav"); + + if (far_id == FAR_CASRSA) + ft_board_setup_phy3(); + + return 0; +} + +int checkboard_common(void) +{ + switch (in_8(ADDR_FPGA_R_BASE)) { + int far_id; + case TYPE_MCR: + printf("MCR3000_2G (CS GROUP)\n"); + break; + case TYPE_MIAE: + far_id = in_8(ADDR_FPGA_R_BASE + 0x43) >> 5; + + if (far_id == FAR_VGOIP) + printf("VGoIP (CS GROUP)\n"); + else + printf("MIAE (CS GROUP)\n"); + + break; + default: + printf("Unknown\n"); + for (;;) + ; + break; + } + return 0; +} + +void misc_init_r_common(void) +{ + u8 tmp, far_id; + int count = 3; + + switch (in_8(ADDR_FPGA_R_BASE)) { + case TYPE_MCR: + /* if at boot alarm button is pressed, delay boot */ + if ((in_8(ADDR_FPGA_R_BASE + 0x31) & FPGA_R_ACQ_AL_FAV) == 0) + env_set("bootdelay", "60"); + + env_set("config", CFG_BOARD_MCR3000_2G); + env_set("hostname", CFG_BOARD_MCR3000_2G); + break; + + case TYPE_MIAE: + do { + tmp = in_8(ADDR_FPGA_R_BASE + 0x41); + count--; + mdelay(10); /* 10msec wait */ + } while (count && tmp != in_8(ADDR_FPGA_R_BASE + 0x41)); + + if (!count) { + printf("Cannot read the reset factory switch position\n"); + hang(); + } + + if (tmp & 0x1) + env_set_default("Factory settings switch ON", 0); + + env_set("config", CFG_BOARD_MIAE); + far_id = in_8(ADDR_FPGA_R_BASE + 0x43) >> 5; + + if (far_id == FAR_VGOIP) + env_set("hostname", CFG_BOARD_VGOIP); + else + env_set("hostname", CFG_BOARD_MIAE); + break; + + default: + env_set("config", CFG_BOARD_CMPCXXX); + env_set("hostname", CFG_BOARD_CMPCXXX); + break; + } +} + +void iop_setup_common(void) +{ + u8 type = in_8(ADDR_FPGA_R_BASE); + + if (type == TYPE_MCR) + iop_setup_mcr(); + else if (type == TYPE_MIAE) + iop_setup_miae(); +} |