| /* |
| * (C) Copyright 2010 Quantenna Communications Inc. |
| * |
| * 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 <linux/stddef.h> |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <qtn/shared_defs.h> |
| #include <asm/board/board_config.h> |
| #include <common/ruby_board_db.h> |
| #include <common/ruby_partitions.h> |
| |
| static int global_board_id = -1; |
| static int global_spi_protect_mode = 0; |
| static int g_slow_ethernet = 0; |
| static const board_cfg_t g_board_cfg_table[] = QTN_BOARD_DB; |
| |
| #define MEM_SIZE_128MB (128 * 1024 * 1024) |
| |
| static int __init |
| setup_slow_ethernet(char *buf) |
| { |
| g_slow_ethernet = (buf != NULL); |
| return 0; |
| } |
| early_param("slow_ethernet", setup_slow_ethernet); |
| |
| static void __init |
| update_ddr_size(void) |
| { |
| /* update DDR size */ |
| extern unsigned long end_mem; |
| int ddr_size = 0; |
| if (get_board_config(BOARD_CFG_DDR_SIZE, &ddr_size) < 0) { |
| printk_init("UNKNOWN DDR SIZE !!!\n"); |
| } else { |
| #if !TOPAZ_MMAP_UNIFIED |
| if (ddr_size > MEM_SIZE_128MB) |
| ddr_size = MEM_SIZE_128MB; |
| #endif |
| end_mem = RUBY_DRAM_BEGIN + ddr_size; |
| } |
| } |
| |
| void __init |
| qtn_set_hw_config_id(int id) |
| { |
| global_board_id = id; |
| update_ddr_size(); |
| } |
| |
| int qtn_get_hw_config_id(void) |
| { |
| return global_board_id; |
| } |
| EXPORT_SYMBOL(qtn_get_hw_config_id); |
| |
| void __init |
| qtn_set_spi_protect_config(u32 mode) |
| { |
| global_spi_protect_mode = mode; |
| } |
| |
| int qtn_get_spi_protect_config(void) |
| { |
| return global_spi_protect_mode; |
| } |
| EXPORT_SYMBOL(qtn_get_spi_protect_config); |
| |
| static ruby_bda_t *get_bda(void) { |
| return (ruby_bda_t *)(CONFIG_ARC_CONF_BASE); |
| } |
| |
| static int |
| lookup_config( const board_cfg_t *p_board_config_entry, int board_config_param, int *p_board_config_value ) |
| { |
| int retval = 0; |
| |
| switch (board_config_param) |
| { |
| case BOARD_CFG_WIFI_HW: |
| *p_board_config_value = p_board_config_entry->bc_wifi_hw; |
| break; |
| |
| case BOARD_CFG_EMAC0: |
| *p_board_config_value = p_board_config_entry->bc_emac0; |
| break; |
| |
| case BOARD_CFG_EMAC1: |
| *p_board_config_value = p_board_config_entry->bc_emac1; |
| break; |
| |
| case BOARD_CFG_PHY1_ADDR: |
| *p_board_config_value = p_board_config_entry->bc_phy1_addr; |
| break; |
| |
| case BOARD_CFG_PHY0_ADDR: |
| *p_board_config_value = p_board_config_entry->bc_phy0_addr; |
| break; |
| |
| case BOARD_CFG_UART1: |
| *p_board_config_value = p_board_config_entry->bc_uart1; |
| break; |
| |
| case BOARD_CFG_PCIE: |
| *p_board_config_value = p_board_config_entry->bc_pcie; |
| break; |
| |
| case BOARD_CFG_RGMII_TIMING: |
| *p_board_config_value = p_board_config_entry->bc_rgmii_timing; |
| break; |
| |
| case BOARD_CFG_DDR_SIZE: |
| *p_board_config_value = p_board_config_entry->bc_ddr_size; |
| break; |
| |
| case BOARD_CFG_FLASH_SIZE: |
| { |
| ruby_bda_t *bda = get_bda(); |
| if (global_board_id == QTN_RUBY_AUTOCONFIG_ID || global_board_id == QTN_RUBY_UNIVERSAL_BOARD_ID) { |
| *p_board_config_value = bda->bda_flashsz; |
| } else { |
| *p_board_config_value = 0; |
| } |
| } |
| break; |
| default: |
| retval = -1; |
| } |
| |
| return( retval ); |
| } |
| |
| int |
| get_board_config( int board_config_param, int *p_board_config_value ) |
| { |
| int iter; |
| int retval = -1; |
| int found_entry = 0; |
| |
| static int get_board_config_error_is_reported = 0; |
| |
| if (p_board_config_value == NULL) { |
| return( -1 ); |
| } |
| |
| if (global_board_id == QTN_RUBY_AUTOCONFIG_ID || global_board_id == QTN_RUBY_UNIVERSAL_BOARD_ID) { |
| ruby_bda_t *bda = get_bda(); |
| |
| /* need to fixup address VA on LHOST as it may be different to one on uboot */ |
| bda->bda_boardcfg.bc_name = bda->bda_boardname; |
| |
| return lookup_config(&bda->bda_boardcfg, |
| board_config_param, p_board_config_value ); |
| } |
| //printk("get_board_config:board ID %d param %d\n",global_board_id,board_config_param); |
| for (iter = 0; iter < sizeof( g_board_cfg_table ) / sizeof( g_board_cfg_table[ 0 ] ) && (found_entry == 0); iter++) { |
| if (global_board_id == g_board_cfg_table[ iter ].bc_board_id) { |
| found_entry = 1; |
| retval = lookup_config( &g_board_cfg_table[ iter ], board_config_param, p_board_config_value ); |
| } |
| } |
| /* |
| * Default to the first entry in the table if not found. |
| * Likely will not work for customer boards, but Q bringup baords might be OK. |
| */ |
| if (found_entry == 0) { |
| retval = lookup_config( &g_board_cfg_table[ 0 ], board_config_param, p_board_config_value ); |
| if (get_board_config_error_is_reported == 0) { |
| printk(KERN_ERR "get board config: HW config ID %d not recognized, defaulting to %d\n", |
| global_board_id, g_board_cfg_table[ 0 ].bc_board_id); |
| get_board_config_error_is_reported = 1; |
| } |
| } |
| |
| return( retval ); |
| } |
| EXPORT_SYMBOL(get_board_config); |
| |
| int |
| board_slow_ethernet(void) |
| { |
| int emac0_cfg = 0, emac1_cfg = 0; |
| |
| if (g_slow_ethernet) { |
| return 1; |
| } |
| |
| #ifdef DETECT_SLOW_ETHERNET |
| get_board_config(BOARD_CFG_EMAC0, &emac0_cfg); |
| get_board_config(BOARD_CFG_EMAC1, &emac1_cfg); |
| #endif |
| |
| return ( (emac0_cfg | emac1_cfg) & EMAC_SLOW_PHY); |
| } |
| EXPORT_SYMBOL(board_slow_ethernet); |
| |
| int |
| board_napi_budget(void) |
| { |
| return 128; |
| } |
| EXPORT_SYMBOL(board_napi_budget); |
| |
| int |
| get_all_board_params( char *p ) |
| { |
| int iter; |
| char *temp=p; |
| board_cfg_t *board = NULL; |
| |
| if (global_board_id == QTN_RUBY_AUTOCONFIG_ID || global_board_id == QTN_RUBY_UNIVERSAL_BOARD_ID) { |
| ruby_bda_t *bda = (ruby_bda_t *)(CONFIG_ARC_CONF_BASE); |
| board = &bda->bda_boardcfg; |
| } else { |
| for (iter = 0; iter < sizeof( g_board_cfg_table ) / sizeof( g_board_cfg_table[ 0 ] ); iter++) { |
| if (global_board_id == g_board_cfg_table[ iter ].bc_board_id) { |
| board = (board_cfg_t *)&g_board_cfg_table[ iter ]; |
| break; |
| } |
| } |
| } |
| |
| if (board) { |
| temp += sprintf( temp, "board_id\t%d\n", board->bc_board_id); |
| temp += sprintf( temp, "name\t%s\n", board->bc_name); |
| temp += sprintf( temp, "ddr_type\t%d\n", board->bc_ddr_type); |
| temp += sprintf( temp, "ddr_speed\t%d\n", board->bc_ddr_speed); |
| temp += sprintf( temp, "ddr_size\t%d\n", board->bc_ddr_size); |
| temp += sprintf( temp, "emac0\t%d\n", board->bc_emac0); |
| temp += sprintf( temp, "emac1\t%d\n", board->bc_emac1); |
| temp += sprintf( temp, "phy0_addr\t%d\n", board->bc_phy0_addr); |
| temp += sprintf( temp, "phy1_addr\t%d\n", board->bc_phy1_addr); |
| temp += sprintf( temp, "spi1\t%d\n", board->bc_spi1); |
| temp += sprintf( temp, "wifi_hw\t%d\n", board->bc_wifi_hw); |
| temp += sprintf( temp, "uart1\t%d\n", board->bc_uart1); |
| temp += sprintf( temp, "bd_pcie\t%d\n", board->bc_pcie); |
| temp += sprintf( temp, "rgmii_timing\t%d\n", board->bc_rgmii_timing); |
| } |
| return (temp-p); |
| } |
| EXPORT_SYMBOL(get_all_board_params); |
| |
| void __init |
| parse_board_config(char *cmdline) |
| { |
| /* parse command line */ |
| int cmdline_len = strlen(cmdline); |
| const char *var = "hw_config_id="; |
| int var_len = strlen(var); |
| while (cmdline_len > var_len) { |
| if (!strncmp(cmdline, var, var_len)) { |
| sscanf(cmdline + var_len, "%d", &global_board_id); |
| printk_init("Board id: %d\n", global_board_id); |
| break; |
| } |
| ++cmdline; |
| --cmdline_len; |
| } |
| |
| /* we should already know board id */ |
| if (global_board_id < 0) { |
| printk_init("UNKNOWN BOARD ID !!!\n"); |
| } |
| |
| /* update DDR size */ |
| update_ddr_size(); |
| } |