From 2627c7e2c100c702d540a277aa578176516d3a7c Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Fri, 11 Mar 2016 22:07:26 -0700 Subject: x86: broadwell: Add support for SDRAM setup Broadwell uses a binary blob called the memory reference code (MRC) to start up its SDRAM. This is similar to ivybridge so we can mostly use common code for running this blob. Signed-off-by: Simon Glass Acked-by: Bin Meng --- arch/x86/include/asm/arch-broadwell/pei_data.h | 177 +++++++++++++++++++++++++ 1 file changed, 177 insertions(+) create mode 100644 arch/x86/include/asm/arch-broadwell/pei_data.h (limited to 'arch/x86/include/asm/arch-broadwell') diff --git a/arch/x86/include/asm/arch-broadwell/pei_data.h b/arch/x86/include/asm/arch-broadwell/pei_data.h new file mode 100644 index 0000000..b2cc8b8 --- /dev/null +++ b/arch/x86/include/asm/arch-broadwell/pei_data.h @@ -0,0 +1,177 @@ +/* + * From Coreboot soc/intel/broadwell/include/soc/pei_data.h + * + * Copyright (C) 2014 Google Inc. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef ASM_ARCH_PEI_DATA_H +#define ASM_ARCH_PEI_DATA_H + +#include + +#define PEI_VERSION 22 + +typedef void asmlinkage (*tx_byte_func)(unsigned char byte); + +enum board_type { + BOARD_TYPE_CRB_MOBILE = 0, /* CRB Mobile */ + BOARD_TYPE_CRB_DESKTOP, /* CRB Desktop */ + BOARD_TYPE_USER1, /* SV mobile */ + BOARD_TYPE_USER2, /* SV desktop */ + BOARD_TYPE_USER3, /* SV server */ + BOARD_TYPE_ULT, /* ULT */ + BOARD_TYPE_CRB_EMBDEDDED, /* CRB Embedded */ + BOARD_TYPE_UNKNOWN, +}; + +#define MAX_USB2_PORTS 14 +#define MAX_USB3_PORTS 6 +#define USB_OC_PIN_SKIP 8 + +enum usb2_port_location { + USB_PORT_BACK_PANEL = 0, + USB_PORT_FRONT_PANEL, + USB_PORT_DOCK, + USB_PORT_MINI_PCIE, + USB_PORT_FLEX, + USB_PORT_INTERNAL, + USB_PORT_SKIP, + USB_PORT_NGFF_DEVICE_DOWN, +}; + +struct usb2_port_setting { + /* + * Usb Port Length: + * [16:4] = length in inches in octal format + * [3:0] = decimal point + */ + uint16_t length; + uint8_t enable; + uint8_t oc_pin; + uint8_t location; +} __packed; + +struct usb3_port_setting { + uint8_t enable; + uint8_t oc_pin; + /* + * Set to 0 if trace length is > 5 inches + * Set to 1 if trace length is <= 5 inches + */ + uint8_t fixed_eq; +} __packed; + + +struct pei_data { + uint32_t pei_version; + + enum board_type board_type; + int boot_mode; + int ec_present; + int usbdebug; + + /* Base addresses */ + uint32_t pciexbar; + uint16_t smbusbar; + uint32_t xhcibar; + uint32_t ehcibar; + uint32_t gttbar; + uint32_t rcba; + uint32_t pmbase; + uint32_t gpiobase; + uint32_t temp_mmio_base; + uint32_t tseg_size; + + /* + * 0 = leave channel enabled + * 1 = disable dimm 0 on channel + * 2 = disable dimm 1 on channel + * 3 = disable dimm 0+1 on channel + */ + int dimm_channel0_disabled; + int dimm_channel1_disabled; + /* Set to 0 for memory down */ + uint8_t spd_addresses[4]; + /* Enable 2x Refresh Mode */ + int ddr_refresh_2x; + /* DQ pins are interleaved on board */ + int dq_pins_interleaved; + /* Limit DDR3 frequency */ + int max_ddr3_freq; + /* Disable self refresh */ + int disable_self_refresh; + /* Disable cmd power/CKEPD */ + int disable_cmd_pwr; + + /* USB port configuration */ + struct usb2_port_setting usb2_ports[MAX_USB2_PORTS]; + struct usb3_port_setting usb3_ports[MAX_USB3_PORTS]; + + /* + * USB3 board specific PHY tuning + */ + + /* Valid range: 0x69 - 0x80 */ + uint8_t usb3_txout_volt_dn_amp_adj[MAX_USB3_PORTS]; + /* Valid range: 0x80 - 0x9c */ + uint8_t usb3_txout_imp_sc_volt_amp_adj[MAX_USB3_PORTS]; + /* Valid range: 0x39 - 0x80 */ + uint8_t usb3_txout_de_emp_adj[MAX_USB3_PORTS]; + /* Valid range: 0x3d - 0x4a */ + uint8_t usb3_txout_imp_adj_volt_amp[MAX_USB3_PORTS]; + + /* Console output function */ + tx_byte_func tx_byte; + + /* + * DIMM SPD data for memory down configurations + * [CHANNEL][SLOT][SPD] + */ + uint8_t spd_data[2][2][512]; + + /* + * LPDDR3 DQ byte map + * [CHANNEL][ITERATION][2] + * + * Maps which PI clocks are used by what LPDDR DQ Bytes (from CPU side) + * DQByteMap[0] - ClkDQByteMap: + * - If clock is per rank, program to [0xFF, 0xFF] + * - If clock is shared by 2 ranks, program to [0xFF, 0] or [0, 0xFF] + * - If clock is shared by 2 ranks but does not go to all bytes, + * Entry[i] defines which DQ bytes Group i services + * DQByteMap[1] - CmdNDQByteMap: [0] is CmdN/CAA and [1] is CmdN/CAB + * DQByteMap[2] - CmdSDQByteMap: [0] is CmdS/CAA and [1] is CmdS/CAB + * DQByteMap[3] - CkeDQByteMap : [0] is CKE /CAA and [1] is CKE /CAB + * For DDR, DQByteMap[3:1] = [0xFF, 0] + * DQByteMap[4] - CtlDQByteMap : Always program to [0xFF, 0] + * since we have 1 CTL / rank + * DQByteMap[5] - CmdVDQByteMap: Always program to [0xFF, 0] + * since we have 1 CA Vref + */ + uint8_t dq_map[2][6][2]; + + /* + * LPDDR3 Map from CPU DQS pins to SDRAM DQS pins + * [CHANNEL][MAX_BYTES] + */ + uint8_t dqs_map[2][8]; + + /* Data read from flash and passed into MRC */ + const void *saved_data; + int saved_data_size; + + /* Disable use of saved data (can be set by mainboard) */ + int disable_saved_data; + + /* Data from MRC that should be saved to flash */ + void *data_to_save; + int data_to_save_size; + struct pei_memory_info meminfo; +} __packed; + +void mainboard_fill_pei_data(struct pei_data *pei_data); +void broadwell_fill_pei_data(struct pei_data *pei_data); + +#endif -- cgit v1.1