From 2a90e396fc1b0d008024cff1a1b02ee8f1cd0036 Mon Sep 17 00:00:00 2001 From: Angel Pons Date: Wed, 23 Jun 2021 15:16:15 +0200 Subject: mb/google/auron: Move SPD file handling to chipset MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The SPD file handling code is generic and can be used on any other mainboard. Move it to chipset scope to enable code reuse. Change-Id: I85b1460ccb82f0c1bf409db4a6b4c9355c25e76d Signed-off-by: Angel Pons Reviewed-on: https://review.coreboot.org/c/coreboot/+/55808 Reviewed-by: Michael Niewöhner Tested-by: build bot (Jenkins) Reviewed-by: Matt DeVillier --- src/mainboard/google/auron/spd.c | 92 ---------------------------------------- 1 file changed, 92 deletions(-) (limited to 'src/mainboard/google/auron') diff --git a/src/mainboard/google/auron/spd.c b/src/mainboard/google/auron/spd.c index 686a24225e4e..79a51f89003b 100644 --- a/src/mainboard/google/auron/spd.c +++ b/src/mainboard/google/auron/spd.c @@ -1,103 +1,11 @@ /* SPDX-License-Identifier: GPL-2.0-only */ -#include -#include #include -#include #include #include #include #include -#define SPD_DRAM_TYPE 2 -#define SPD_DRAM_DDR3 0x0b -#define SPD_DRAM_LPDDR3 0xf1 -#define SPD_DENSITY_BANKS 4 -#define SPD_ADDRESSING 5 -#define SPD_ORGANIZATION 7 -#define SPD_BUS_DEV_WIDTH 8 -#define SPD_PART_OFF 128 -#define SPD_PART_LEN 18 - -#define SPD_LEN 256 - -static void mainboard_print_spd_info(uint8_t spd[]) -{ - const int spd_banks[8] = { 8, 16, 32, 64, -1, -1, -1, -1 }; - const int spd_capmb[8] = { 1, 2, 4, 8, 16, 32, 64, 0 }; - const int spd_rows[8] = { 12, 13, 14, 15, 16, -1, -1, -1 }; - const int spd_cols[8] = { 9, 10, 11, 12, -1, -1, -1, -1 }; - const int spd_ranks[8] = { 1, 2, 3, 4, -1, -1, -1, -1 }; - const int spd_devw[8] = { 4, 8, 16, 32, -1, -1, -1, -1 }; - const int spd_busw[8] = { 8, 16, 32, 64, -1, -1, -1, -1 }; - char spd_name[SPD_PART_LEN+1] = { 0 }; - - int banks = spd_banks[(spd[SPD_DENSITY_BANKS] >> 4) & 7]; - int capmb = spd_capmb[spd[SPD_DENSITY_BANKS] & 7] * 256; - int rows = spd_rows[(spd[SPD_ADDRESSING] >> 3) & 7]; - int cols = spd_cols[spd[SPD_ADDRESSING] & 7]; - int ranks = spd_ranks[(spd[SPD_ORGANIZATION] >> 3) & 7]; - int devw = spd_devw[spd[SPD_ORGANIZATION] & 7]; - int busw = spd_busw[spd[SPD_BUS_DEV_WIDTH] & 7]; - - /* Module type */ - printk(BIOS_INFO, "SPD: module type is "); - switch (spd[SPD_DRAM_TYPE]) { - case SPD_DRAM_DDR3: - printk(BIOS_INFO, "DDR3\n"); - break; - case SPD_DRAM_LPDDR3: - printk(BIOS_INFO, "LPDDR3\n"); - break; - default: - printk(BIOS_INFO, "Unknown (%02x)\n", spd[SPD_DRAM_TYPE]); - break; - } - - /* Module Part Number */ - memcpy(spd_name, &spd[SPD_PART_OFF], SPD_PART_LEN); - spd_name[SPD_PART_LEN] = 0; - printk(BIOS_INFO, "SPD: module part is %s\n", spd_name); - - printk(BIOS_INFO, "SPD: banks %d, ranks %d, rows %d, columns %d, " - "density %d Mb\n", banks, ranks, rows, cols, capmb); - printk(BIOS_INFO, "SPD: device width %d bits, bus width %d bits\n", - devw, busw); - - if (capmb > 0 && busw > 0 && devw > 0 && ranks > 0) { - /* SIZE = DENSITY / 8 * BUS_WIDTH / SDRAM_WIDTH * RANKS */ - printk(BIOS_INFO, "SPD: module size is %u MB (per channel)\n", - capmb / 8 * busw / devw * ranks); - } -} - -static void fill_spd_for_index(uint8_t spd[], unsigned int spd_index) -{ - size_t spd_file_len; - uint8_t *spd_file = cbfs_map("spd.bin", &spd_file_len); - - printk(BIOS_DEBUG, "SPD index %d\n", spd_index); - - if (!spd_file) - die("SPD data not found."); - - if (spd_file_len < SPD_LEN) - die("Missing SPD data."); - - if (spd_file_len < ((spd_index + 1) * SPD_LEN)) { - printk(BIOS_ERR, "SPD index override to 0 - old hardware?\n"); - spd_index = 0; - } - - memcpy(spd, spd_file + (spd_index * SPD_LEN), SPD_LEN); - - /* Make sure a valid SPD was found */ - if (spd[0] == 0) - die("Invalid SPD data."); - - mainboard_print_spd_info(spd); -} - /* Copy SPD data for on-board memory */ void mainboard_fill_spd_data(struct pei_data *pei_data) { -- cgit v1.2.3