diff options
Diffstat (limited to 'src/mainboard/apple/macbookair5_2/early_init.c')
| -rw-r--r-- | src/mainboard/apple/macbookair5_2/early_init.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/mainboard/apple/macbookair5_2/early_init.c b/src/mainboard/apple/macbookair5_2/early_init.c new file mode 100644 index 0000000000..c4c060b671 --- /dev/null +++ b/src/mainboard/apple/macbookair5_2/early_init.c @@ -0,0 +1,64 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <northbridge/intel/sandybridge/raminit_native.h> +#include <southbridge/intel/bd82x6x/pch.h> +#include <cbfs.h> +#include <southbridge/intel/common/gpio.h> + +const struct southbridge_usb_port mainboard_usb_ports[] = { + { 1, 0, 0 }, /* Ext A (XHCI/EHCI) */ + { 1, 0, 1 }, /* Ext B (XHCI) */ + { 1, 0, 2 }, /* Ext C (XHCI/EHCI) */ + { 1, 0, 3 }, /* Ext D (XHCI) */ + { 0, 0, -1 }, /* Unused */ + { 1, 0, -1 }, /* SD */ + { 1, 0, -1 }, /* Wi-Fi */ + { 1, 0, -1 }, /* USB Hub (All LS/FS Devices) */ + { 1, 0, -1 }, /* Camera */ + { 1, 0, 4 }, /* Ext B (EHCI) */ + { 1, 0, 5 }, /* Ext D (EHCI) */ + { 1, 0, -1 }, /* BT */ + { 0, 0, -1 }, /* Unused */ + { 0, 0, -1 }, /* Unused */ +}; + +static uint8_t *get_spd_data(int spd_index) +{ + uint8_t *spd_file; + size_t spd_file_len; + printk(BIOS_DEBUG, "spd index %d\n", spd_index); + spd_file = cbfs_map("spd.bin", &spd_file_len); + if (!spd_file) + die("SPD data not found."); + if (spd_file_len < spd_index * 256) + die("Missing SPD data."); + return spd_file + spd_index * 256; +} + +void mainboard_get_spd(spd_raw_data *spd, bool id_only) +{ + uint8_t *memory; + const int spd_gpio_vector[] = {71, 70, 69, 68, -1}; + int ramcfg = get_gpios(spd_gpio_vector); + int spd_index = -1; + + /* + * GPIO68 GPIO69 GPIO70 GPIO71 Memory Supported + * 0 0 0 0 4 GiB Hynix Yes + * 0 1 0 0 8 GiB Hynix No + * 0 0 1 0 4 GiB Samsung No + * 0 1 1 0 8 GiB Samsung No + * 0 1 1 1 8 GiB Elpida No + * 0 0 1 1 4 GiB Elpida No + */ + + if (ramcfg == 0) + spd_index = 0; + + if (spd_index == -1) + die("Unsupported memory, RAMCFG=%d\n", ramcfg); + + memory = get_spd_data(spd_index); + memcpy(&spd[0], memory, 256); + memcpy(&spd[2], memory, 256); +} |