--- /dev/null
+/*
+ * Copyright (C) 2013, Intel Corporation
+ * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * Ported from Intel released Quark UEFI BIOS
+ * QuarkSocPkg/QuarkNorthCluster/MemoryInit/Pei
+ *
+ * SPDX-License-Identifier: Intel
+ */
+
+#include <common.h>
+#include <asm/arch/mrc.h>
+#include <asm/arch/msg_port.h>
+#include "mrc_util.h"
+#include "hte.h"
+
+/**
+ * Enable HTE to detect all possible errors for the given training parameters
+ * (per-bit or full byte lane).
+ */
+static void hte_enable_all_errors(void)
+{
+ msg_port_write(HTE, 0x000200A2, 0xFFFFFFFF);
+ msg_port_write(HTE, 0x000200A3, 0x000000FF);
+ msg_port_write(HTE, 0x000200A4, 0x00000000);
+}
+
+/**
+ * Go and read the HTE register in order to find any error
+ *
+ * @return: The errors detected in the HTE status register
+ */
+static u32 hte_check_errors(void)
+{
+ return msg_port_read(HTE, 0x000200A7);
+}
+
+/**
+ * Wait until HTE finishes
+ */
+static void hte_wait_for_complete(void)
+{
+ u32 tmp;
+
+ ENTERFN();
+
+ do {} while ((msg_port_read(HTE, 0x00020012) & BIT30) != 0);
+
+ tmp = msg_port_read(HTE, 0x00020011);
+ tmp |= BIT9;
+ tmp &= ~(BIT12 | BIT13);
+ msg_port_write(HTE, 0x00020011, tmp);
+
+ LEAVEFN();
+}
+
+/**
+ * Clear registers related with errors in the HTE
+ */
+static void hte_clear_error_regs(void)
+{
+ u32 tmp;
+
+ /*
+ * Clear all HTE errors and enable error checking
+ * for burst and chunk.
+ */
+ tmp = msg_port_read(HTE, 0x000200A1);
+ tmp |= BIT8;
+ msg_port_write(HTE, 0x000200A1, tmp);
+}
+
+/**
+ * Execute a basic single-cache-line memory write/read/verify test using simple
+ * constant pattern, different for READ_TRAIN and WRITE_TRAIN modes.
+ *
+ * See hte_basic_write_read() which is the external visible wrapper.
+ *
+ * @mrc_params: host structure for all MRC global data
+ * @addr: memory adress being tested (must hit specific channel/rank)
+ * @first_run: if set then the HTE registers are configured, otherwise it is
+ * assumed configuration is done and we just re-run the test
+ * @mode: READ_TRAIN or WRITE_TRAIN (the difference is in the pattern)
+ *
+ * @return: byte lane failure on each bit (for Quark only bit0 and bit1)
+ */
+static u16 hte_basic_data_cmp(struct mrc_params *mrc_params, u32 addr,
+ u8 first_run, u8 mode)
+{
+ u32 pattern;
+ u32 offset;
+
+ if (first_run) {
+ msg_port_write(HTE, 0x00020020, 0x01B10021);
+ msg_port_write(HTE, 0x00020021, 0x06000000);
+ msg_port_write(HTE, 0x00020022, addr >> 6);
+ msg_port_write(HTE, 0x00020062, 0x00800015);
+ msg_port_write(HTE, 0x00020063, 0xAAAAAAAA);
+ msg_port_write(HTE, 0x00020064, 0xCCCCCCCC);
+ msg_port_write(HTE, 0x00020065, 0xF0F0F0F0);
+ msg_port_write(HTE, 0x00020061, 0x00030008);
+
+ if (mode == WRITE_TRAIN)
+ pattern = 0xC33C0000;
+ else /* READ_TRAIN */
+ pattern = 0xAA5555AA;
+
+ for (offset = 0x80; offset <= 0x8F; offset++)
+ msg_port_write(HTE, offset, pattern);
+ }
+
+ msg_port_write(HTE, 0x000200A1, 0xFFFF1000);
+ msg_port_write(HTE, 0x00020011, 0x00011000);
+ msg_port_write(HTE, 0x00020011, 0x00011100);
+
+ hte_wait_for_complete();
+
+ /*
+ * Return bits 15:8 of HTE_CH0_ERR_XSTAT to check for
+ * any bytelane errors.
+ */
+ return (hte_check_errors() >> 8) & 0xFF;
+}
+
+/**
+ * Examine a single-cache-line memory with write/read/verify test using multiple
+ * data patterns (victim-aggressor algorithm).
+ *
+ * See hte_write_stress_bit_lanes() which is the external visible wrapper.
+ *
+ * @mrc_params: host structure for all MRC global data
+ * @addr: memory adress being tested (must hit specific channel/rank)
+ * @loop_cnt: number of test iterations
+ * @seed_victim: victim data pattern seed
+ * @seed_aggressor: aggressor data pattern seed
+ * @victim_bit: should be 0 as auto-rotate feature is in use
+ * @first_run: if set then the HTE registers are configured, otherwise it is
+ * assumed configuration is done and we just re-run the test
+ *
+ * @return: byte lane failure on each bit (for Quark only bit0 and bit1)
+ */
+static u16 hte_rw_data_cmp(struct mrc_params *mrc_params, u32 addr,
+ u8 loop_cnt, u32 seed_victim, u32 seed_aggressor,
+ u8 victim_bit, u8 first_run)
+{
+ u32 offset;
+ u32 tmp;
+
+ if (first_run) {
+ msg_port_write(HTE, 0x00020020, 0x00910024);
+ msg_port_write(HTE, 0x00020023, 0x00810024);
+ msg_port_write(HTE, 0x00020021, 0x06070000);
+ msg_port_write(HTE, 0x00020024, 0x06070000);
+ msg_port_write(HTE, 0x00020022, addr >> 6);
+ msg_port_write(HTE, 0x00020025, addr >> 6);
+ msg_port_write(HTE, 0x00020062, 0x0000002A);
+ msg_port_write(HTE, 0x00020063, seed_victim);
+ msg_port_write(HTE, 0x00020064, seed_aggressor);
+ msg_port_write(HTE, 0x00020065, seed_victim);
+
+ /*
+ * Write the pattern buffers to select the victim bit
+ *
+ * Start with bit0
+ */
+ for (offset = 0x80; offset <= 0x8F; offset++) {
+ if ((offset % 8) == victim_bit)
+ msg_port_write(HTE, offset, 0x55555555);
+ else
+ msg_port_write(HTE, offset, 0xCCCCCCCC);
+ }
+
+ msg_port_write(HTE, 0x00020061, 0x00000000);
+ msg_port_write(HTE, 0x00020066, 0x03440000);
+ msg_port_write(HTE, 0x000200A1, 0xFFFF1000);
+ }
+
+ tmp = 0x10001000 | (loop_cnt << 16);
+ msg_port_write(HTE, 0x00020011, tmp);
+ msg_port_write(HTE, 0x00020011, tmp | BIT8);
+
+ hte_wait_for_complete();
+
+ /*
+ * Return bits 15:8 of HTE_CH0_ERR_XSTAT to check for
+ * any bytelane errors.
+ */
+ return (hte_check_errors() >> 8) & 0xFF;
+}
+
+/**
+ * Use HW HTE engine to initialize or test all memory attached to a given DUNIT.
+ * If flag is MRC_MEM_INIT, this routine writes 0s to all memory locations to
+ * initialize ECC. If flag is MRC_MEM_TEST, this routine will send an 5AA55AA5
+ * pattern to all memory locations on the RankMask and then read it back.
+ * Then it sends an A55AA55A pattern to all memory locations on the RankMask
+ * and reads it back.
+ *
+ * @mrc_params: host structure for all MRC global data
+ * @flag: MRC_MEM_INIT or MRC_MEM_TEST
+ *
+ * @return: errors register showing HTE failures. Also prints out which rank
+ * failed the HTE test if failure occurs. For rank detection to work,
+ * the address map must be left in its default state. If MRC changes
+ * the address map, this function must be modified to change it back
+ * to default at the beginning, then restore it at the end.
+ */
+u32 hte_mem_init(struct mrc_params *mrc_params, u8 flag)
+{
+ u32 offset;
+ int test_num;
+ int i;
+
+ /*
+ * Clear out the error registers at the start of each memory
+ * init or memory test run.
+ */
+ hte_clear_error_regs();
+
+ msg_port_write(HTE, 0x00020062, 0x00000015);
+
+ for (offset = 0x80; offset <= 0x8F; offset++)
+ msg_port_write(HTE, offset, ((offset & 1) ? 0xA55A : 0x5AA5));
+
+ msg_port_write(HTE, 0x00020021, 0x00000000);
+ msg_port_write(HTE, 0x00020022, (mrc_params->mem_size >> 6) - 1);
+ msg_port_write(HTE, 0x00020063, 0xAAAAAAAA);
+ msg_port_write(HTE, 0x00020064, 0xCCCCCCCC);
+ msg_port_write(HTE, 0x00020065, 0xF0F0F0F0);
+ msg_port_write(HTE, 0x00020066, 0x03000000);
+
+ switch (flag) {
+ case MRC_MEM_INIT:
+ /*
+ * Only 1 write pass through memory is needed
+ * to initialize ECC
+ */
+ test_num = 1;
+ break;
+ case MRC_MEM_TEST:
+ /* Write/read then write/read with inverted pattern */
+ test_num = 4;
+ break;
+ default:
+ DPF(D_INFO, "Unknown parameter for flag: %d\n", flag);
+ return 0xFFFFFFFF;
+ }
+
+ DPF(D_INFO, "hte_mem_init");
+
+ for (i = 0; i < test_num; i++) {
+ DPF(D_INFO, ".");
+
+ if (i == 0) {
+ msg_port_write(HTE, 0x00020061, 0x00000000);
+ msg_port_write(HTE, 0x00020020, 0x00110010);
+ } else if (i == 1) {
+ msg_port_write(HTE, 0x00020061, 0x00000000);
+ msg_port_write(HTE, 0x00020020, 0x00010010);
+ } else if (i == 2) {
+ msg_port_write(HTE, 0x00020061, 0x00010100);
+ msg_port_write(HTE, 0x00020020, 0x00110010);
+ } else {
+ msg_port_write(HTE, 0x00020061, 0x00010100);
+ msg_port_write(HTE, 0x00020020, 0x00010010);
+ }
+
+ msg_port_write(HTE, 0x00020011, 0x00111000);
+ msg_port_write(HTE, 0x00020011, 0x00111100);
+
+ hte_wait_for_complete();
+
+ /* If this is a READ pass, check for errors at the end */
+ if ((i % 2) == 1) {
+ /* Return immediately if error */
+ if (hte_check_errors())
+ break;
+ }
+ }
+
+ DPF(D_INFO, "done\n");
+
+ return hte_check_errors();
+}
+
+/**
+ * Execute a basic single-cache-line memory write/read/verify test using simple
+ * constant pattern, different for READ_TRAIN and WRITE_TRAIN modes.
+ *
+ * @mrc_params: host structure for all MRC global data
+ * @addr: memory adress being tested (must hit specific channel/rank)
+ * @first_run: if set then the HTE registers are configured, otherwise it is
+ * assumed configuration is done and we just re-run the test
+ * @mode: READ_TRAIN or WRITE_TRAIN (the difference is in the pattern)
+ *
+ * @return: byte lane failure on each bit (for Quark only bit0 and bit1)
+ */
+u16 hte_basic_write_read(struct mrc_params *mrc_params, u32 addr,
+ u8 first_run, u8 mode)
+{
+ u16 errors;
+
+ ENTERFN();
+
+ /* Enable all error reporting in preparation for HTE test */
+ hte_enable_all_errors();
+ hte_clear_error_regs();
+
+ errors = hte_basic_data_cmp(mrc_params, addr, first_run, mode);
+
+ LEAVEFN();
+
+ return errors;
+}
+
+/**
+ * Examine a single-cache-line memory with write/read/verify test using multiple
+ * data patterns (victim-aggressor algorithm).
+ *
+ * @mrc_params: host structure for all MRC global data
+ * @addr: memory adress being tested (must hit specific channel/rank)
+ * @first_run: if set then the HTE registers are configured, otherwise it is
+ * assumed configuration is done and we just re-run the test
+ *
+ * @return: byte lane failure on each bit (for Quark only bit0 and bit1)
+ */
+u16 hte_write_stress_bit_lanes(struct mrc_params *mrc_params,
+ u32 addr, u8 first_run)
+{
+ u16 errors;
+ u8 victim_bit = 0;
+
+ ENTERFN();
+
+ /* Enable all error reporting in preparation for HTE test */
+ hte_enable_all_errors();
+ hte_clear_error_regs();
+
+ /*
+ * Loop through each bit in the bytelane.
+ *
+ * Each pass creates a victim bit while keeping all other bits the same
+ * as aggressors. AVN HTE adds an auto-rotate feature which allows us
+ * to program the entire victim/aggressor sequence in 1 step.
+ *
+ * The victim bit rotates on each pass so no need to have software
+ * implement a victim bit loop like on VLV.
+ */
+ errors = hte_rw_data_cmp(mrc_params, addr, HTE_LOOP_CNT,
+ HTE_LFSR_VICTIM_SEED, HTE_LFSR_AGRESSOR_SEED,
+ victim_bit, first_run);
+
+ LEAVEFN();
+
+ return errors;
+}
+
+/**
+ * Execute a basic single-cache-line memory write or read.
+ * This is just for receive enable / fine write-levelling purpose.
+ *
+ * @addr: memory adress being tested (must hit specific channel/rank)
+ * @first_run: if set then the HTE registers are configured, otherwise it is
+ * assumed configuration is done and we just re-run the test
+ * @is_write: when non-zero memory write operation executed, otherwise read
+ */
+void hte_mem_op(u32 addr, u8 first_run, u8 is_write)
+{
+ u32 offset;
+ u32 tmp;
+
+ hte_enable_all_errors();
+ hte_clear_error_regs();
+
+ if (first_run) {
+ tmp = is_write ? 0x01110021 : 0x01010021;
+ msg_port_write(HTE, 0x00020020, tmp);
+
+ msg_port_write(HTE, 0x00020021, 0x06000000);
+ msg_port_write(HTE, 0x00020022, addr >> 6);
+ msg_port_write(HTE, 0x00020062, 0x00800015);
+ msg_port_write(HTE, 0x00020063, 0xAAAAAAAA);
+ msg_port_write(HTE, 0x00020064, 0xCCCCCCCC);
+ msg_port_write(HTE, 0x00020065, 0xF0F0F0F0);
+ msg_port_write(HTE, 0x00020061, 0x00030008);
+
+ for (offset = 0x80; offset <= 0x8F; offset++)
+ msg_port_write(HTE, offset, 0xC33C0000);
+ }
+
+ msg_port_write(HTE, 0x000200A1, 0xFFFF1000);
+ msg_port_write(HTE, 0x00020011, 0x00011000);
+ msg_port_write(HTE, 0x00020011, 0x00011100);
+
+ hte_wait_for_complete();
+}
--- /dev/null
+/*
+ * Copyright (C) 2013, Intel Corporation
+ * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * Ported from Intel released Quark UEFI BIOS
+ * QuarkSocPkg/QuarkNorthCluster/MemoryInit/Pei
+ *
+ * SPDX-License-Identifier: Intel
+ */
+
+#include <common.h>
+#include <asm/arch/device.h>
+#include <asm/arch/mrc.h>
+#include <asm/arch/msg_port.h>
+#include "mrc_util.h"
+#include "hte.h"
+#include "smc.h"
+
+static const uint8_t vref_codes[64] = {
+ /* lowest to highest */
+ 0x3F, 0x3E, 0x3D, 0x3C, 0x3B, 0x3A, 0x39, 0x38,
+ 0x37, 0x36, 0x35, 0x34, 0x33, 0x32, 0x31, 0x30,
+ 0x2F, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, 0x28,
+ 0x27, 0x26, 0x25, 0x24, 0x23, 0x22, 0x21, 0x20,
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+ 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F
+};
+
+void mrc_write_mask(u32 unit, u32 addr, u32 data, u32 mask)
+{
+ msg_port_write(unit, addr,
+ (msg_port_read(unit, addr) & ~(mask)) |
+ ((data) & (mask)));
+}
+
+void mrc_alt_write_mask(u32 unit, u32 addr, u32 data, u32 mask)
+{
+ msg_port_alt_write(unit, addr,
+ (msg_port_alt_read(unit, addr) & ~(mask)) |
+ ((data) & (mask)));
+}
+
+void mrc_post_code(uint8_t major, uint8_t minor)
+{
+ /* send message to UART */
+ DPF(D_INFO, "POST: 0x%01x%02x\n", major, minor);
+
+ /* error check */
+ if (major == 0xee)
+ hang();
+}
+
+/* Delay number of nanoseconds */
+void delay_n(uint32_t ns)
+{
+ /* 1000 MHz clock has 1ns period --> no conversion required */
+ uint64_t final_tsc = rdtsc();
+
+ final_tsc += ((get_tbclk_mhz() * ns) / 1000);
+
+ while (rdtsc() < final_tsc)
+ ;
+}
+
+/* Delay number of microseconds */
+void delay_u(uint32_t ms)
+{
+ /* 64-bit math is not an option, just use loops */
+ while (ms--)
+ delay_n(1000);
+}
+
+/* Select Memory Manager as the source for PRI interface */
+void select_mem_mgr(void)
+{
+ u32 dco;
+
+ ENTERFN();
+
+ dco = msg_port_read(MEM_CTLR, DCO);
+ dco &= ~BIT28;
+ msg_port_write(MEM_CTLR, DCO, dco);
+
+ LEAVEFN();
+}
+
+/* Select HTE as the source for PRI interface */
+void select_hte(void)
+{
+ u32 dco;
+
+ ENTERFN();
+
+ dco = msg_port_read(MEM_CTLR, DCO);
+ dco |= BIT28;
+ msg_port_write(MEM_CTLR, DCO, dco);
+
+ LEAVEFN();
+}
+
+/*
+ * Send DRAM command
+ * data should be formated using DCMD_Xxxx macro or emrsXCommand structure
+ */
+void dram_init_command(uint32_t data)
+{
+ pci_write_config_dword(QUARK_HOST_BRIDGE, MSG_DATA_REG, data);
+ pci_write_config_dword(QUARK_HOST_BRIDGE, MSG_CTRL_EXT_REG, 0);
+ msg_port_setup(MSG_OP_DRAM_INIT, MEM_CTLR, 0);
+
+ DPF(D_REGWR, "WR32 %03X %08X %08X\n", MEM_CTLR, 0, data);
+}
+
+/* Send DRAM wake command using special MCU side-band WAKE opcode */
+void dram_wake_command(void)
+{
+ ENTERFN();
+
+ msg_port_setup(MSG_OP_DRAM_WAKE, MEM_CTLR, 0);
+
+ LEAVEFN();
+}
+
+void training_message(uint8_t channel, uint8_t rank, uint8_t byte_lane)
+{
+ /* send message to UART */
+ DPF(D_INFO, "CH%01X RK%01X BL%01X\n", channel, rank, byte_lane);
+}
+
+/*
+ * This function will program the RCVEN delays
+ *
+ * (currently doesn't comprehend rank)
+ */
+void set_rcvn(uint8_t channel, uint8_t rank,
+ uint8_t byte_lane, uint32_t pi_count)
+{
+ uint32_t reg;
+ uint32_t msk;
+ uint32_t temp;
+
+ ENTERFN();
+
+ DPF(D_TRN, "Rcvn ch%d rnk%d ln%d : pi=%03X\n",
+ channel, rank, byte_lane, pi_count);
+
+ /*
+ * RDPTR (1/2 MCLK, 64 PIs)
+ * BL0 -> B01PTRCTL0[11:08] (0x0-0xF)
+ * BL1 -> B01PTRCTL0[23:20] (0x0-0xF)
+ */
+ reg = B01PTRCTL0 + ((byte_lane >> 1) * DDRIODQ_BL_OFFSET) +
+ (channel * DDRIODQ_CH_OFFSET);
+ msk = (byte_lane & BIT0) ? (BIT23 | BIT22 | BIT21 | BIT20) :
+ (BIT11 | BIT10 | BIT9 | BIT8);
+ temp = (byte_lane & BIT0) ? ((pi_count / HALF_CLK) << 20) :
+ ((pi_count / HALF_CLK) << 8);
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+
+ /* Adjust PI_COUNT */
+ pi_count -= ((pi_count / HALF_CLK) & 0xF) * HALF_CLK;
+
+ /*
+ * PI (1/64 MCLK, 1 PIs)
+ * BL0 -> B0DLLPICODER0[29:24] (0x00-0x3F)
+ * BL1 -> B1DLLPICODER0[29:24] (0x00-0x3F)
+ */
+ reg = (byte_lane & BIT0) ? B1DLLPICODER0 : B0DLLPICODER0;
+ reg += (((byte_lane >> 1) * DDRIODQ_BL_OFFSET) +
+ (channel * DDRIODQ_CH_OFFSET));
+ msk = (BIT29 | BIT28 | BIT27 | BIT26 | BIT25 | BIT24);
+ temp = pi_count << 24;
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+
+ /*
+ * DEADBAND
+ * BL0/1 -> B01DBCTL1[08/11] (+1 select)
+ * BL0/1 -> B01DBCTL1[02/05] (enable)
+ */
+ reg = B01DBCTL1 + ((byte_lane >> 1) * DDRIODQ_BL_OFFSET) +
+ (channel * DDRIODQ_CH_OFFSET);
+ msk = 0x00;
+ temp = 0x00;
+
+ /* enable */
+ msk |= (byte_lane & BIT0) ? BIT5 : BIT2;
+ if ((pi_count < EARLY_DB) || (pi_count > LATE_DB))
+ temp |= msk;
+
+ /* select */
+ msk |= (byte_lane & BIT0) ? BIT11 : BIT8;
+ if (pi_count < EARLY_DB)
+ temp |= msk;
+
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+
+ /* error check */
+ if (pi_count > 0x3F) {
+ training_message(channel, rank, byte_lane);
+ mrc_post_code(0xee, 0xe0);
+ }
+
+ LEAVEFN();
+}
+
+/*
+ * This function will return the current RCVEN delay on the given
+ * channel, rank, byte_lane as an absolute PI count.
+ *
+ * (currently doesn't comprehend rank)
+ */
+uint32_t get_rcvn(uint8_t channel, uint8_t rank, uint8_t byte_lane)
+{
+ uint32_t reg;
+ uint32_t temp;
+ uint32_t pi_count;
+
+ ENTERFN();
+
+ /*
+ * RDPTR (1/2 MCLK, 64 PIs)
+ * BL0 -> B01PTRCTL0[11:08] (0x0-0xF)
+ * BL1 -> B01PTRCTL0[23:20] (0x0-0xF)
+ */
+ reg = B01PTRCTL0 + ((byte_lane >> 1) * DDRIODQ_BL_OFFSET) +
+ (channel * DDRIODQ_CH_OFFSET);
+ temp = msg_port_alt_read(DDRPHY, reg);
+ temp >>= (byte_lane & BIT0) ? 20 : 8;
+ temp &= 0xF;
+
+ /* Adjust PI_COUNT */
+ pi_count = temp * HALF_CLK;
+
+ /*
+ * PI (1/64 MCLK, 1 PIs)
+ * BL0 -> B0DLLPICODER0[29:24] (0x00-0x3F)
+ * BL1 -> B1DLLPICODER0[29:24] (0x00-0x3F)
+ */
+ reg = (byte_lane & BIT0) ? B1DLLPICODER0 : B0DLLPICODER0;
+ reg += (((byte_lane >> 1) * DDRIODQ_BL_OFFSET) +
+ (channel * DDRIODQ_CH_OFFSET));
+ temp = msg_port_alt_read(DDRPHY, reg);
+ temp >>= 24;
+ temp &= 0x3F;
+
+ /* Adjust PI_COUNT */
+ pi_count += temp;
+
+ LEAVEFN();
+
+ return pi_count;
+}
+
+/*
+ * This function will program the RDQS delays based on an absolute
+ * amount of PIs.
+ *
+ * (currently doesn't comprehend rank)
+ */
+void set_rdqs(uint8_t channel, uint8_t rank,
+ uint8_t byte_lane, uint32_t pi_count)
+{
+ uint32_t reg;
+ uint32_t msk;
+ uint32_t temp;
+
+ ENTERFN();
+ DPF(D_TRN, "Rdqs ch%d rnk%d ln%d : pi=%03X\n",
+ channel, rank, byte_lane, pi_count);
+
+ /*
+ * PI (1/128 MCLK)
+ * BL0 -> B0RXDQSPICODE[06:00] (0x00-0x47)
+ * BL1 -> B1RXDQSPICODE[06:00] (0x00-0x47)
+ */
+ reg = (byte_lane & BIT0) ? B1RXDQSPICODE : B0RXDQSPICODE;
+ reg += (((byte_lane >> 1) * DDRIODQ_BL_OFFSET) +
+ (channel * DDRIODQ_CH_OFFSET));
+ msk = (BIT6 | BIT5 | BIT4 | BIT3 | BIT2 | BIT1 | BIT0);
+ temp = pi_count << 0;
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+
+ /* error check (shouldn't go above 0x3F) */
+ if (pi_count > 0x47) {
+ training_message(channel, rank, byte_lane);
+ mrc_post_code(0xee, 0xe1);
+ }
+
+ LEAVEFN();
+}
+
+/*
+ * This function will return the current RDQS delay on the given
+ * channel, rank, byte_lane as an absolute PI count.
+ *
+ * (currently doesn't comprehend rank)
+ */
+uint32_t get_rdqs(uint8_t channel, uint8_t rank, uint8_t byte_lane)
+{
+ uint32_t reg;
+ uint32_t temp;
+ uint32_t pi_count;
+
+ ENTERFN();
+
+ /*
+ * PI (1/128 MCLK)
+ * BL0 -> B0RXDQSPICODE[06:00] (0x00-0x47)
+ * BL1 -> B1RXDQSPICODE[06:00] (0x00-0x47)
+ */
+ reg = (byte_lane & BIT0) ? B1RXDQSPICODE : B0RXDQSPICODE;
+ reg += (((byte_lane >> 1) * DDRIODQ_BL_OFFSET) +
+ (channel * DDRIODQ_CH_OFFSET));
+ temp = msg_port_alt_read(DDRPHY, reg);
+
+ /* Adjust PI_COUNT */
+ pi_count = temp & 0x7F;
+
+ LEAVEFN();
+
+ return pi_count;
+}
+
+/*
+ * This function will program the WDQS delays based on an absolute
+ * amount of PIs.
+ *
+ * (currently doesn't comprehend rank)
+ */
+void set_wdqs(uint8_t channel, uint8_t rank,
+ uint8_t byte_lane, uint32_t pi_count)
+{
+ uint32_t reg;
+ uint32_t msk;
+ uint32_t temp;
+
+ ENTERFN();
+
+ DPF(D_TRN, "Wdqs ch%d rnk%d ln%d : pi=%03X\n",
+ channel, rank, byte_lane, pi_count);
+
+ /*
+ * RDPTR (1/2 MCLK, 64 PIs)
+ * BL0 -> B01PTRCTL0[07:04] (0x0-0xF)
+ * BL1 -> B01PTRCTL0[19:16] (0x0-0xF)
+ */
+ reg = B01PTRCTL0 + ((byte_lane >> 1) * DDRIODQ_BL_OFFSET) +
+ (channel * DDRIODQ_CH_OFFSET);
+ msk = (byte_lane & BIT0) ? (BIT19 | BIT18 | BIT17 | BIT16) :
+ (BIT7 | BIT6 | BIT5 | BIT4);
+ temp = pi_count / HALF_CLK;
+ temp <<= (byte_lane & BIT0) ? 16 : 4;
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+
+ /* Adjust PI_COUNT */
+ pi_count -= ((pi_count / HALF_CLK) & 0xF) * HALF_CLK;
+
+ /*
+ * PI (1/64 MCLK, 1 PIs)
+ * BL0 -> B0DLLPICODER0[21:16] (0x00-0x3F)
+ * BL1 -> B1DLLPICODER0[21:16] (0x00-0x3F)
+ */
+ reg = (byte_lane & BIT0) ? B1DLLPICODER0 : B0DLLPICODER0;
+ reg += (((byte_lane >> 1) * DDRIODQ_BL_OFFSET) +
+ (channel * DDRIODQ_CH_OFFSET));
+ msk = (BIT21 | BIT20 | BIT19 | BIT18 | BIT17 | BIT16);
+ temp = pi_count << 16;
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+
+ /*
+ * DEADBAND
+ * BL0/1 -> B01DBCTL1[07/10] (+1 select)
+ * BL0/1 -> B01DBCTL1[01/04] (enable)
+ */
+ reg = B01DBCTL1 + ((byte_lane >> 1) * DDRIODQ_BL_OFFSET) +
+ (channel * DDRIODQ_CH_OFFSET);
+ msk = 0x00;
+ temp = 0x00;
+
+ /* enable */
+ msk |= (byte_lane & BIT0) ? BIT4 : BIT1;
+ if ((pi_count < EARLY_DB) || (pi_count > LATE_DB))
+ temp |= msk;
+
+ /* select */
+ msk |= (byte_lane & BIT0) ? BIT10 : BIT7;
+ if (pi_count < EARLY_DB)
+ temp |= msk;
+
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+
+ /* error check */
+ if (pi_count > 0x3F) {
+ training_message(channel, rank, byte_lane);
+ mrc_post_code(0xee, 0xe2);
+ }
+
+ LEAVEFN();
+}
+
+/*
+ * This function will return the amount of WDQS delay on the given
+ * channel, rank, byte_lane as an absolute PI count.
+ *
+ * (currently doesn't comprehend rank)
+ */
+uint32_t get_wdqs(uint8_t channel, uint8_t rank, uint8_t byte_lane)
+{
+ uint32_t reg;
+ uint32_t temp;
+ uint32_t pi_count;
+
+ ENTERFN();
+
+ /*
+ * RDPTR (1/2 MCLK, 64 PIs)
+ * BL0 -> B01PTRCTL0[07:04] (0x0-0xF)
+ * BL1 -> B01PTRCTL0[19:16] (0x0-0xF)
+ */
+ reg = B01PTRCTL0 + ((byte_lane >> 1) * DDRIODQ_BL_OFFSET) +
+ (channel * DDRIODQ_CH_OFFSET);
+ temp = msg_port_alt_read(DDRPHY, reg);
+ temp >>= (byte_lane & BIT0) ? 16 : 4;
+ temp &= 0xF;
+
+ /* Adjust PI_COUNT */
+ pi_count = (temp * HALF_CLK);
+
+ /*
+ * PI (1/64 MCLK, 1 PIs)
+ * BL0 -> B0DLLPICODER0[21:16] (0x00-0x3F)
+ * BL1 -> B1DLLPICODER0[21:16] (0x00-0x3F)
+ */
+ reg = (byte_lane & BIT0) ? B1DLLPICODER0 : B0DLLPICODER0;
+ reg += (((byte_lane >> 1) * DDRIODQ_BL_OFFSET) +
+ (channel * DDRIODQ_CH_OFFSET));
+ temp = msg_port_alt_read(DDRPHY, reg);
+ temp >>= 16;
+ temp &= 0x3F;
+
+ /* Adjust PI_COUNT */
+ pi_count += temp;
+
+ LEAVEFN();
+
+ return pi_count;
+}
+
+/*
+ * This function will program the WDQ delays based on an absolute
+ * number of PIs.
+ *
+ * (currently doesn't comprehend rank)
+ */
+void set_wdq(uint8_t channel, uint8_t rank,
+ uint8_t byte_lane, uint32_t pi_count)
+{
+ uint32_t reg;
+ uint32_t msk;
+ uint32_t temp;
+
+ ENTERFN();
+
+ DPF(D_TRN, "Wdq ch%d rnk%d ln%d : pi=%03X\n",
+ channel, rank, byte_lane, pi_count);
+
+ /*
+ * RDPTR (1/2 MCLK, 64 PIs)
+ * BL0 -> B01PTRCTL0[03:00] (0x0-0xF)
+ * BL1 -> B01PTRCTL0[15:12] (0x0-0xF)
+ */
+ reg = B01PTRCTL0 + ((byte_lane >> 1) * DDRIODQ_BL_OFFSET) +
+ (channel * DDRIODQ_CH_OFFSET);
+ msk = (byte_lane & BIT0) ? (BIT15 | BIT14 | BIT13 | BIT12) :
+ (BIT3 | BIT2 | BIT1 | BIT0);
+ temp = pi_count / HALF_CLK;
+ temp <<= (byte_lane & BIT0) ? 12 : 0;
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+
+ /* Adjust PI_COUNT */
+ pi_count -= ((pi_count / HALF_CLK) & 0xF) * HALF_CLK;
+
+ /*
+ * PI (1/64 MCLK, 1 PIs)
+ * BL0 -> B0DLLPICODER0[13:08] (0x00-0x3F)
+ * BL1 -> B1DLLPICODER0[13:08] (0x00-0x3F)
+ */
+ reg = (byte_lane & BIT0) ? B1DLLPICODER0 : B0DLLPICODER0;
+ reg += (((byte_lane >> 1) * DDRIODQ_BL_OFFSET) +
+ (channel * DDRIODQ_CH_OFFSET));
+ msk = (BIT13 | BIT12 | BIT11 | BIT10 | BIT9 | BIT8);
+ temp = pi_count << 8;
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+
+ /*
+ * DEADBAND
+ * BL0/1 -> B01DBCTL1[06/09] (+1 select)
+ * BL0/1 -> B01DBCTL1[00/03] (enable)
+ */
+ reg = B01DBCTL1 + ((byte_lane >> 1) * DDRIODQ_BL_OFFSET) +
+ (channel * DDRIODQ_CH_OFFSET);
+ msk = 0x00;
+ temp = 0x00;
+
+ /* enable */
+ msk |= (byte_lane & BIT0) ? BIT3 : BIT0;
+ if ((pi_count < EARLY_DB) || (pi_count > LATE_DB))
+ temp |= msk;
+
+ /* select */
+ msk |= (byte_lane & BIT0) ? BIT9 : BIT6;
+ if (pi_count < EARLY_DB)
+ temp |= msk;
+
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+
+ /* error check */
+ if (pi_count > 0x3F) {
+ training_message(channel, rank, byte_lane);
+ mrc_post_code(0xee, 0xe3);
+ }
+
+ LEAVEFN();
+}
+
+/*
+ * This function will return the amount of WDQ delay on the given
+ * channel, rank, byte_lane as an absolute PI count.
+ *
+ * (currently doesn't comprehend rank)
+ */
+uint32_t get_wdq(uint8_t channel, uint8_t rank, uint8_t byte_lane)
+{
+ uint32_t reg;
+ uint32_t temp;
+ uint32_t pi_count;
+
+ ENTERFN();
+
+ /*
+ * RDPTR (1/2 MCLK, 64 PIs)
+ * BL0 -> B01PTRCTL0[03:00] (0x0-0xF)
+ * BL1 -> B01PTRCTL0[15:12] (0x0-0xF)
+ */
+ reg = B01PTRCTL0 + ((byte_lane >> 1) * DDRIODQ_BL_OFFSET) +
+ (channel * DDRIODQ_CH_OFFSET);
+ temp = msg_port_alt_read(DDRPHY, reg);
+ temp >>= (byte_lane & BIT0) ? (12) : (0);
+ temp &= 0xF;
+
+ /* Adjust PI_COUNT */
+ pi_count = temp * HALF_CLK;
+
+ /*
+ * PI (1/64 MCLK, 1 PIs)
+ * BL0 -> B0DLLPICODER0[13:08] (0x00-0x3F)
+ * BL1 -> B1DLLPICODER0[13:08] (0x00-0x3F)
+ */
+ reg = (byte_lane & BIT0) ? B1DLLPICODER0 : B0DLLPICODER0;
+ reg += (((byte_lane >> 1) * DDRIODQ_BL_OFFSET) +
+ (channel * DDRIODQ_CH_OFFSET));
+ temp = msg_port_alt_read(DDRPHY, reg);
+ temp >>= 8;
+ temp &= 0x3F;
+
+ /* Adjust PI_COUNT */
+ pi_count += temp;
+
+ LEAVEFN();
+
+ return pi_count;
+}
+
+/*
+ * This function will program the WCMD delays based on an absolute
+ * number of PIs.
+ */
+void set_wcmd(uint8_t channel, uint32_t pi_count)
+{
+ uint32_t reg;
+ uint32_t msk;
+ uint32_t temp;
+
+ ENTERFN();
+
+ /*
+ * RDPTR (1/2 MCLK, 64 PIs)
+ * CMDPTRREG[11:08] (0x0-0xF)
+ */
+ reg = CMDPTRREG + (channel * DDRIOCCC_CH_OFFSET);
+ msk = (BIT11 | BIT10 | BIT9 | BIT8);
+ temp = pi_count / HALF_CLK;
+ temp <<= 8;
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+
+ /* Adjust PI_COUNT */
+ pi_count -= ((pi_count / HALF_CLK) & 0xF) * HALF_CLK;
+
+ /*
+ * PI (1/64 MCLK, 1 PIs)
+ * CMDDLLPICODER0[29:24] -> CMDSLICE R3 (unused)
+ * CMDDLLPICODER0[21:16] -> CMDSLICE L3 (unused)
+ * CMDDLLPICODER0[13:08] -> CMDSLICE R2 (unused)
+ * CMDDLLPICODER0[05:00] -> CMDSLICE L2 (unused)
+ * CMDDLLPICODER1[29:24] -> CMDSLICE R1 (unused)
+ * CMDDLLPICODER1[21:16] -> CMDSLICE L1 (0x00-0x3F)
+ * CMDDLLPICODER1[13:08] -> CMDSLICE R0 (unused)
+ * CMDDLLPICODER1[05:00] -> CMDSLICE L0 (unused)
+ */
+ reg = CMDDLLPICODER1 + (channel * DDRIOCCC_CH_OFFSET);
+
+ msk = (BIT29 | BIT28 | BIT27 | BIT26 | BIT25 | BIT24 |
+ BIT21 | BIT20 | BIT19 | BIT18 | BIT17 | BIT16 |
+ BIT13 | BIT12 | BIT11 | BIT10 | BIT9 | BIT8 |
+ BIT5 | BIT4 | BIT3 | BIT2 | BIT1 | BIT0);
+
+ temp = (pi_count << 24) | (pi_count << 16) |
+ (pi_count << 8) | (pi_count << 0);
+
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+ reg = CMDDLLPICODER0 + (channel * DDRIOCCC_CH_OFFSET); /* PO */
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+
+ /*
+ * DEADBAND
+ * CMDCFGREG0[17] (+1 select)
+ * CMDCFGREG0[16] (enable)
+ */
+ reg = CMDCFGREG0 + (channel * DDRIOCCC_CH_OFFSET);
+ msk = 0x00;
+ temp = 0x00;
+
+ /* enable */
+ msk |= BIT16;
+ if ((pi_count < EARLY_DB) || (pi_count > LATE_DB))
+ temp |= msk;
+
+ /* select */
+ msk |= BIT17;
+ if (pi_count < EARLY_DB)
+ temp |= msk;
+
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+
+ /* error check */
+ if (pi_count > 0x3F)
+ mrc_post_code(0xee, 0xe4);
+
+ LEAVEFN();
+}
+
+/*
+ * This function will return the amount of WCMD delay on the given
+ * channel as an absolute PI count.
+ */
+uint32_t get_wcmd(uint8_t channel)
+{
+ uint32_t reg;
+ uint32_t temp;
+ uint32_t pi_count;
+
+ ENTERFN();
+
+ /*
+ * RDPTR (1/2 MCLK, 64 PIs)
+ * CMDPTRREG[11:08] (0x0-0xF)
+ */
+ reg = CMDPTRREG + (channel * DDRIOCCC_CH_OFFSET);
+ temp = msg_port_alt_read(DDRPHY, reg);
+ temp >>= 8;
+ temp &= 0xF;
+
+ /* Adjust PI_COUNT */
+ pi_count = temp * HALF_CLK;
+
+ /*
+ * PI (1/64 MCLK, 1 PIs)
+ * CMDDLLPICODER0[29:24] -> CMDSLICE R3 (unused)
+ * CMDDLLPICODER0[21:16] -> CMDSLICE L3 (unused)
+ * CMDDLLPICODER0[13:08] -> CMDSLICE R2 (unused)
+ * CMDDLLPICODER0[05:00] -> CMDSLICE L2 (unused)
+ * CMDDLLPICODER1[29:24] -> CMDSLICE R1 (unused)
+ * CMDDLLPICODER1[21:16] -> CMDSLICE L1 (0x00-0x3F)
+ * CMDDLLPICODER1[13:08] -> CMDSLICE R0 (unused)
+ * CMDDLLPICODER1[05:00] -> CMDSLICE L0 (unused)
+ */
+ reg = CMDDLLPICODER1 + (channel * DDRIOCCC_CH_OFFSET);
+ temp = msg_port_alt_read(DDRPHY, reg);
+ temp >>= 16;
+ temp &= 0x3F;
+
+ /* Adjust PI_COUNT */
+ pi_count += temp;
+
+ LEAVEFN();
+
+ return pi_count;
+}
+
+/*
+ * This function will program the WCLK delays based on an absolute
+ * number of PIs.
+ */
+void set_wclk(uint8_t channel, uint8_t rank, uint32_t pi_count)
+{
+ uint32_t reg;
+ uint32_t msk;
+ uint32_t temp;
+
+ ENTERFN();
+
+ /*
+ * RDPTR (1/2 MCLK, 64 PIs)
+ * CCPTRREG[15:12] -> CLK1 (0x0-0xF)
+ * CCPTRREG[11:08] -> CLK0 (0x0-0xF)
+ */
+ reg = CCPTRREG + (channel * DDRIOCCC_CH_OFFSET);
+ msk = (BIT15 | BIT14 | BIT13 | BIT12 | BIT11 | BIT10 | BIT9 | BIT8);
+ temp = ((pi_count / HALF_CLK) << 12) | ((pi_count / HALF_CLK) << 8);
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+
+ /* Adjust PI_COUNT */
+ pi_count -= ((pi_count / HALF_CLK) & 0xF) * HALF_CLK;
+
+ /*
+ * PI (1/64 MCLK, 1 PIs)
+ * ECCB1DLLPICODER0[13:08] -> CLK0 (0x00-0x3F)
+ * ECCB1DLLPICODER0[21:16] -> CLK1 (0x00-0x3F)
+ */
+ reg = rank ? ECCB1DLLPICODER0 : ECCB1DLLPICODER0;
+ reg += (channel * DDRIOCCC_CH_OFFSET);
+ msk = (BIT21 | BIT20 | BIT19 | BIT18 | BIT17 | BIT16 |
+ BIT13 | BIT12 | BIT11 | BIT10 | BIT9 | BIT8);
+ temp = (pi_count << 16) | (pi_count << 8);
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+ reg = rank ? ECCB1DLLPICODER1 : ECCB1DLLPICODER1;
+ reg += (channel * DDRIOCCC_CH_OFFSET);
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+ reg = rank ? ECCB1DLLPICODER2 : ECCB1DLLPICODER2;
+ reg += (channel * DDRIOCCC_CH_OFFSET);
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+ reg = rank ? ECCB1DLLPICODER3 : ECCB1DLLPICODER3;
+ reg += (channel * DDRIOCCC_CH_OFFSET);
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+
+ /*
+ * DEADBAND
+ * CCCFGREG1[11:08] (+1 select)
+ * CCCFGREG1[03:00] (enable)
+ */
+ reg = CCCFGREG1 + (channel * DDRIOCCC_CH_OFFSET);
+ msk = 0x00;
+ temp = 0x00;
+
+ /* enable */
+ msk |= (BIT3 | BIT2 | BIT1 | BIT0);
+ if ((pi_count < EARLY_DB) || (pi_count > LATE_DB))
+ temp |= msk;
+
+ /* select */
+ msk |= (BIT11 | BIT10 | BIT9 | BIT8);
+ if (pi_count < EARLY_DB)
+ temp |= msk;
+
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+
+ /* error check */
+ if (pi_count > 0x3F)
+ mrc_post_code(0xee, 0xe5);
+
+ LEAVEFN();
+}
+
+/*
+ * This function will return the amout of WCLK delay on the given
+ * channel, rank as an absolute PI count.
+ */
+uint32_t get_wclk(uint8_t channel, uint8_t rank)
+{
+ uint32_t reg;
+ uint32_t temp;
+ uint32_t pi_count;
+
+ ENTERFN();
+
+ /*
+ * RDPTR (1/2 MCLK, 64 PIs)
+ * CCPTRREG[15:12] -> CLK1 (0x0-0xF)
+ * CCPTRREG[11:08] -> CLK0 (0x0-0xF)
+ */
+ reg = CCPTRREG + (channel * DDRIOCCC_CH_OFFSET);
+ temp = msg_port_alt_read(DDRPHY, reg);
+ temp >>= rank ? 12 : 8;
+ temp &= 0xF;
+
+ /* Adjust PI_COUNT */
+ pi_count = temp * HALF_CLK;
+
+ /*
+ * PI (1/64 MCLK, 1 PIs)
+ * ECCB1DLLPICODER0[13:08] -> CLK0 (0x00-0x3F)
+ * ECCB1DLLPICODER0[21:16] -> CLK1 (0x00-0x3F)
+ */
+ reg = rank ? ECCB1DLLPICODER0 : ECCB1DLLPICODER0;
+ reg += (channel * DDRIOCCC_CH_OFFSET);
+ temp = msg_port_alt_read(DDRPHY, reg);
+ temp >>= rank ? 16 : 8;
+ temp &= 0x3F;
+
+ pi_count += temp;
+
+ LEAVEFN();
+
+ return pi_count;
+}
+
+/*
+ * This function will program the WCTL delays based on an absolute
+ * number of PIs.
+ *
+ * (currently doesn't comprehend rank)
+ */
+void set_wctl(uint8_t channel, uint8_t rank, uint32_t pi_count)
+{
+ uint32_t reg;
+ uint32_t msk;
+ uint32_t temp;
+
+ ENTERFN();
+
+ /*
+ * RDPTR (1/2 MCLK, 64 PIs)
+ * CCPTRREG[31:28] (0x0-0xF)
+ * CCPTRREG[27:24] (0x0-0xF)
+ */
+ reg = CCPTRREG + (channel * DDRIOCCC_CH_OFFSET);
+ msk = (BIT31 | BIT30 | BIT29 | BIT28 | BIT27 | BIT26 | BIT25 | BIT24);
+ temp = ((pi_count / HALF_CLK) << 28) | ((pi_count / HALF_CLK) << 24);
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+
+ /* Adjust PI_COUNT */
+ pi_count -= ((pi_count / HALF_CLK) & 0xF) * HALF_CLK;
+
+ /*
+ * PI (1/64 MCLK, 1 PIs)
+ * ECCB1DLLPICODER?[29:24] (0x00-0x3F)
+ * ECCB1DLLPICODER?[29:24] (0x00-0x3F)
+ */
+ reg = ECCB1DLLPICODER0 + (channel * DDRIOCCC_CH_OFFSET);
+ msk = (BIT29 | BIT28 | BIT27 | BIT26 | BIT25 | BIT24);
+ temp = (pi_count << 24);
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+ reg = ECCB1DLLPICODER1 + (channel * DDRIOCCC_CH_OFFSET);
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+ reg = ECCB1DLLPICODER2 + (channel * DDRIOCCC_CH_OFFSET);
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+ reg = ECCB1DLLPICODER3 + (channel * DDRIOCCC_CH_OFFSET);
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+
+ /*
+ * DEADBAND
+ * CCCFGREG1[13:12] (+1 select)
+ * CCCFGREG1[05:04] (enable)
+ */
+ reg = CCCFGREG1 + (channel * DDRIOCCC_CH_OFFSET);
+ msk = 0x00;
+ temp = 0x00;
+
+ /* enable */
+ msk |= (BIT5 | BIT4);
+ if ((pi_count < EARLY_DB) || (pi_count > LATE_DB))
+ temp |= msk;
+
+ /* select */
+ msk |= (BIT13 | BIT12);
+ if (pi_count < EARLY_DB)
+ temp |= msk;
+
+ mrc_alt_write_mask(DDRPHY, reg, temp, msk);
+
+ /* error check */
+ if (pi_count > 0x3F)
+ mrc_post_code(0xee, 0xe6);
+
+ LEAVEFN();
+}
+
+/*
+ * This function will return the amount of WCTL delay on the given
+ * channel, rank as an absolute PI count.
+ *
+ * (currently doesn't comprehend rank)
+ */
+uint32_t get_wctl(uint8_t channel, uint8_t rank)
+{
+ uint32_t reg;
+ uint32_t temp;
+ uint32_t pi_count;
+
+ ENTERFN();
+
+ /*
+ * RDPTR (1/2 MCLK, 64 PIs)
+ * CCPTRREG[31:28] (0x0-0xF)
+ * CCPTRREG[27:24] (0x0-0xF)
+ */
+ reg = CCPTRREG + (channel * DDRIOCCC_CH_OFFSET);
+ temp = msg_port_alt_read(DDRPHY, reg);
+ temp >>= 24;
+ temp &= 0xF;
+
+ /* Adjust PI_COUNT */
+ pi_count = temp * HALF_CLK;
+
+ /*
+ * PI (1/64 MCLK, 1 PIs)
+ * ECCB1DLLPICODER?[29:24] (0x00-0x3F)
+ * ECCB1DLLPICODER?[29:24] (0x00-0x3F)
+ */
+ reg = ECCB1DLLPICODER0 + (channel * DDRIOCCC_CH_OFFSET);
+ temp = msg_port_alt_read(DDRPHY, reg);
+ temp >>= 24;
+ temp &= 0x3F;
+
+ /* Adjust PI_COUNT */
+ pi_count += temp;
+
+ LEAVEFN();
+
+ return pi_count;
+}
+
+/*
+ * This function will program the internal Vref setting in a given
+ * byte lane in a given channel.
+ */
+void set_vref(uint8_t channel, uint8_t byte_lane, uint32_t setting)
+{
+ uint32_t reg = (byte_lane & 0x1) ? (B1VREFCTL) : (B0VREFCTL);
+
+ ENTERFN();
+
+ DPF(D_TRN, "Vref ch%d ln%d : val=%03X\n",
+ channel, byte_lane, setting);
+
+ mrc_alt_write_mask(DDRPHY, (reg + (channel * DDRIODQ_CH_OFFSET) +
+ ((byte_lane >> 1) * DDRIODQ_BL_OFFSET)),
+ (vref_codes[setting] << 2),
+ (BIT7 | BIT6 | BIT5 | BIT4 | BIT3 | BIT2));
+
+ /*
+ * need to wait ~300ns for Vref to settle
+ * (check that this is necessary)
+ */
+ delay_n(300);
+
+ /* ??? may need to clear pointers ??? */
+
+ LEAVEFN();
+}
+
+/*
+ * This function will return the internal Vref setting for the given
+ * channel, byte_lane.
+ */
+uint32_t get_vref(uint8_t channel, uint8_t byte_lane)
+{
+ uint8_t j;
+ uint32_t ret_val = sizeof(vref_codes) / 2;
+ uint32_t reg = (byte_lane & 0x1) ? (B1VREFCTL) : (B0VREFCTL);
+ uint32_t temp;
+
+ ENTERFN();
+
+ temp = msg_port_alt_read(DDRPHY, (reg + (channel * DDRIODQ_CH_OFFSET) +
+ ((byte_lane >> 1) * DDRIODQ_BL_OFFSET)));
+ temp >>= 2;
+ temp &= 0x3F;
+
+ for (j = 0; j < sizeof(vref_codes); j++) {
+ if (vref_codes[j] == temp) {
+ ret_val = j;
+ break;
+ }
+ }
+
+ LEAVEFN();
+
+ return ret_val;
+}
+
+/*
+ * This function will return a 32-bit address in the desired
+ * channel and rank.
+ */
+uint32_t get_addr(uint8_t channel, uint8_t rank)
+{
+ uint32_t offset = 0x02000000; /* 32MB */
+
+ /* Begin product specific code */
+ if (channel > 0) {
+ DPF(D_ERROR, "ILLEGAL CHANNEL\n");
+ DEAD_LOOP();
+ }
+
+ if (rank > 1) {
+ DPF(D_ERROR, "ILLEGAL RANK\n");
+ DEAD_LOOP();
+ }
+
+ /* use 256MB lowest density as per DRP == 0x0003 */
+ offset += rank * (256 * 1024 * 1024);
+
+ return offset;
+}
+
+/*
+ * This function will sample the DQTRAINSTS registers in the given
+ * channel/rank SAMPLE_SIZE times looking for a valid '0' or '1'.
+ *
+ * It will return an encoded 32-bit date in which each bit corresponds to
+ * the sampled value on the byte lane.
+ */
+uint32_t sample_dqs(struct mrc_params *mrc_params, uint8_t channel,
+ uint8_t rank, bool rcvn)
+{
+ uint8_t j; /* just a counter */
+ uint8_t bl; /* which BL in the module (always 2 per module) */
+ uint8_t bl_grp; /* which BL module */
+ /* byte lane divisor */
+ uint8_t bl_divisor = (mrc_params->channel_width == X16) ? 2 : 1;
+ uint32_t msk[2]; /* BLx in module */
+ /* DQTRAINSTS register contents for each sample */
+ uint32_t sampled_val[SAMPLE_SIZE];
+ uint32_t num_0s; /* tracks the number of '0' samples */
+ uint32_t num_1s; /* tracks the number of '1' samples */
+ uint32_t ret_val = 0x00; /* assume all '0' samples */
+ uint32_t address = get_addr(channel, rank);
+
+ /* initialise msk[] */
+ msk[0] = rcvn ? BIT1 : BIT9; /* BL0 */
+ msk[1] = rcvn ? BIT0 : BIT8; /* BL1 */
+
+ /* cycle through each byte lane group */
+ for (bl_grp = 0; bl_grp < (NUM_BYTE_LANES / bl_divisor) / 2; bl_grp++) {
+ /* take SAMPLE_SIZE samples */
+ for (j = 0; j < SAMPLE_SIZE; j++) {
+ hte_mem_op(address, mrc_params->first_run,
+ rcvn ? 0 : 1);
+ mrc_params->first_run = 0;
+
+ /*
+ * record the contents of the proper
+ * DQTRAINSTS register
+ */
+ sampled_val[j] = msg_port_alt_read(DDRPHY,
+ (DQTRAINSTS +
+ (bl_grp * DDRIODQ_BL_OFFSET) +
+ (channel * DDRIODQ_CH_OFFSET)));
+ }
+
+ /*
+ * look for a majority value (SAMPLE_SIZE / 2) + 1
+ * on the byte lane and set that value in the corresponding
+ * ret_val bit
+ */
+ for (bl = 0; bl < 2; bl++) {
+ num_0s = 0x00; /* reset '0' tracker for byte lane */
+ num_1s = 0x00; /* reset '1' tracker for byte lane */
+ for (j = 0; j < SAMPLE_SIZE; j++) {
+ if (sampled_val[j] & msk[bl])
+ num_1s++;
+ else
+ num_0s++;
+ }
+ if (num_1s > num_0s)
+ ret_val |= (1 << (bl + (bl_grp * 2)));
+ }
+ }
+
+ /*
+ * "ret_val.0" contains the status of BL0
+ * "ret_val.1" contains the status of BL1
+ * "ret_val.2" contains the status of BL2
+ * etc.
+ */
+ return ret_val;
+}
+
+/* This function will find the rising edge transition on RCVN or WDQS */
+void find_rising_edge(struct mrc_params *mrc_params, uint32_t delay[],
+ uint8_t channel, uint8_t rank, bool rcvn)
+{
+ bool all_edges_found; /* determines stop condition */
+ bool direction[NUM_BYTE_LANES]; /* direction indicator */
+ uint8_t sample; /* sample counter */
+ uint8_t bl; /* byte lane counter */
+ /* byte lane divisor */
+ uint8_t bl_divisor = (mrc_params->channel_width == X16) ? 2 : 1;
+ uint32_t sample_result[SAMPLE_CNT]; /* results of sample_dqs() */
+ uint32_t temp;
+ uint32_t transition_pattern;
+
+ ENTERFN();
+
+ /* select hte and request initial configuration */
+ select_hte();
+ mrc_params->first_run = 1;
+
+ /* Take 3 sample points (T1,T2,T3) to obtain a transition pattern */
+ for (sample = 0; sample < SAMPLE_CNT; sample++) {
+ /* program the desired delays for sample */
+ for (bl = 0; bl < (NUM_BYTE_LANES / bl_divisor); bl++) {
+ /* increase sample delay by 26 PI (0.2 CLK) */
+ if (rcvn) {
+ set_rcvn(channel, rank, bl,
+ delay[bl] + (sample * SAMPLE_DLY));
+ } else {
+ set_wdqs(channel, rank, bl,
+ delay[bl] + (sample * SAMPLE_DLY));
+ }
+ }
+
+ /* take samples (Tsample_i) */
+ sample_result[sample] = sample_dqs(mrc_params,
+ channel, rank, rcvn);
+
+ DPF(D_TRN,
+ "Find rising edge %s ch%d rnk%d: #%d dly=%d dqs=%02X\n",
+ (rcvn ? "RCVN" : "WDQS"), channel, rank, sample,
+ sample * SAMPLE_DLY, sample_result[sample]);
+ }
+
+ /*
+ * This pattern will help determine where we landed and ultimately
+ * how to place RCVEN/WDQS.
+ */
+ for (bl = 0; bl < (NUM_BYTE_LANES / bl_divisor); bl++) {
+ /* build transition_pattern (MSB is 1st sample) */
+ transition_pattern = 0;
+ for (sample = 0; sample < SAMPLE_CNT; sample++) {
+ transition_pattern |=
+ ((sample_result[sample] & (1 << bl)) >> bl) <<
+ (SAMPLE_CNT - 1 - sample);
+ }
+
+ DPF(D_TRN, "=== transition pattern %d\n", transition_pattern);
+
+ /*
+ * set up to look for rising edge based on
+ * transition_pattern
+ */
+ switch (transition_pattern) {
+ case 0: /* sampled 0->0->0 */
+ /* move forward from T3 looking for 0->1 */
+ delay[bl] += 2 * SAMPLE_DLY;
+ direction[bl] = FORWARD;
+ break;
+ case 1: /* sampled 0->0->1 */
+ case 5: /* sampled 1->0->1 (bad duty cycle) *HSD#237503* */
+ /* move forward from T2 looking for 0->1 */
+ delay[bl] += 1 * SAMPLE_DLY;
+ direction[bl] = FORWARD;
+ break;
+ case 2: /* sampled 0->1->0 (bad duty cycle) *HSD#237503* */
+ case 3: /* sampled 0->1->1 */
+ /* move forward from T1 looking for 0->1 */
+ delay[bl] += 0 * SAMPLE_DLY;
+ direction[bl] = FORWARD;
+ break;
+ case 4: /* sampled 1->0->0 (assumes BL8, HSD#234975) */
+ /* move forward from T3 looking for 0->1 */
+ delay[bl] += 2 * SAMPLE_DLY;
+ direction[bl] = FORWARD;
+ break;
+ case 6: /* sampled 1->1->0 */
+ case 7: /* sampled 1->1->1 */
+ /* move backward from T1 looking for 1->0 */
+ delay[bl] += 0 * SAMPLE_DLY;
+ direction[bl] = BACKWARD;
+ break;
+ default:
+ mrc_post_code(0xee, 0xee);
+ break;
+ }
+
+ /* program delays */
+ if (rcvn)
+ set_rcvn(channel, rank, bl, delay[bl]);
+ else
+ set_wdqs(channel, rank, bl, delay[bl]);
+ }
+
+ /*
+ * Based on the observed transition pattern on the byte lane,
+ * begin looking for a rising edge with single PI granularity.
+ */
+ do {
+ all_edges_found = true; /* assume all byte lanes passed */
+ /* take a sample */
+ temp = sample_dqs(mrc_params, channel, rank, rcvn);
+ /* check all each byte lane for proper edge */
+ for (bl = 0; bl < (NUM_BYTE_LANES / bl_divisor); bl++) {
+ if (temp & (1 << bl)) {
+ /* sampled "1" */
+ if (direction[bl] == BACKWARD) {
+ /*
+ * keep looking for edge
+ * on this byte lane
+ */
+ all_edges_found = false;
+ delay[bl] -= 1;
+ if (rcvn) {
+ set_rcvn(channel, rank,
+ bl, delay[bl]);
+ } else {
+ set_wdqs(channel, rank,
+ bl, delay[bl]);
+ }
+ }
+ } else {
+ /* sampled "0" */
+ if (direction[bl] == FORWARD) {
+ /*
+ * keep looking for edge
+ * on this byte lane
+ */
+ all_edges_found = false;
+ delay[bl] += 1;
+ if (rcvn) {
+ set_rcvn(channel, rank,
+ bl, delay[bl]);
+ } else {
+ set_wdqs(channel, rank,
+ bl, delay[bl]);
+ }
+ }
+ }
+ }
+ } while (!all_edges_found);
+
+ /* restore DDR idle state */
+ dram_init_command(DCMD_PREA(rank));
+
+ DPF(D_TRN, "Delay %03X %03X %03X %03X\n",
+ delay[0], delay[1], delay[2], delay[3]);
+
+ LEAVEFN();
+}
+
+/*
+ * This function will return a 32 bit mask that will be used to
+ * check for byte lane failures.
+ */
+uint32_t byte_lane_mask(struct mrc_params *mrc_params)
+{
+ uint32_t j;
+ uint32_t ret_val = 0x00;
+
+ /*
+ * set ret_val based on NUM_BYTE_LANES such that you will check
+ * only BL0 in result
+ *
+ * (each bit in result represents a byte lane)
+ */
+ for (j = 0; j < MAX_BYTE_LANES; j += NUM_BYTE_LANES)
+ ret_val |= (1 << ((j / NUM_BYTE_LANES) * NUM_BYTE_LANES));
+
+ /*
+ * HSD#235037
+ * need to adjust the mask for 16-bit mode
+ */
+ if (mrc_params->channel_width == X16)
+ ret_val |= (ret_val << 2);
+
+ return ret_val;
+}
+
+/*
+ * Check memory executing simple write/read/verify at the specified address.
+ *
+ * Bits in the result indicate failure on specific byte lane.
+ */
+uint32_t check_rw_coarse(struct mrc_params *mrc_params, uint32_t address)
+{
+ uint32_t result = 0;
+ uint8_t first_run = 0;
+
+ if (mrc_params->hte_setup) {
+ mrc_params->hte_setup = 0;
+ first_run = 1;
+ select_hte();
+ }
+
+ result = hte_basic_write_read(mrc_params, address, first_run,
+ WRITE_TRAIN);
+
+ DPF(D_TRN, "check_rw_coarse result is %x\n", result);
+
+ return result;
+}
+
+/*
+ * Check memory executing write/read/verify of many data patterns
+ * at the specified address. Bits in the result indicate failure
+ * on specific byte lane.
+ */
+uint32_t check_bls_ex(struct mrc_params *mrc_params, uint32_t address)
+{
+ uint32_t result;
+ uint8_t first_run = 0;
+
+ if (mrc_params->hte_setup) {
+ mrc_params->hte_setup = 0;
+ first_run = 1;
+ select_hte();
+ }
+
+ result = hte_write_stress_bit_lanes(mrc_params, address, first_run);
+
+ DPF(D_TRN, "check_bls_ex result is %x\n", result);
+
+ return result;
+}
+
+/*
+ * 32-bit LFSR with characteristic polynomial: X^32 + X^22 +X^2 + X^1
+ *
+ * The function takes pointer to previous 32 bit value and
+ * modifies it to next value.
+ */
+void lfsr32(uint32_t *lfsr_ptr)
+{
+ uint32_t bit;
+ uint32_t lfsr;
+ int i;
+
+ lfsr = *lfsr_ptr;
+
+ for (i = 0; i < 32; i++) {
+ bit = 1 ^ (lfsr & BIT0);
+ bit = bit ^ ((lfsr & BIT1) >> 1);
+ bit = bit ^ ((lfsr & BIT2) >> 2);
+ bit = bit ^ ((lfsr & BIT22) >> 22);
+
+ lfsr = ((lfsr >> 1) | (bit << 31));
+ }
+
+ *lfsr_ptr = lfsr;
+}
+
+/* Clear the pointers in a given byte lane in a given channel */
+void clear_pointers(void)
+{
+ uint8_t channel;
+ uint8_t bl;
+
+ ENTERFN();
+
+ for (channel = 0; channel < NUM_CHANNELS; channel++) {
+ for (bl = 0; bl < NUM_BYTE_LANES; bl++) {
+ mrc_alt_write_mask(DDRPHY,
+ (B01PTRCTL1 +
+ (channel * DDRIODQ_CH_OFFSET) +
+ ((bl >> 1) * DDRIODQ_BL_OFFSET)),
+ ~BIT8, BIT8);
+
+ mrc_alt_write_mask(DDRPHY,
+ (B01PTRCTL1 +
+ (channel * DDRIODQ_CH_OFFSET) +
+ ((bl >> 1) * DDRIODQ_BL_OFFSET)),
+ BIT8, BIT8);
+ }
+ }
+
+ LEAVEFN();
+}
+
+static void print_timings_internal(uint8_t algo, uint8_t channel, uint8_t rank,
+ uint8_t bl_divisor)
+{
+ uint8_t bl;
+
+ switch (algo) {
+ case RCVN:
+ DPF(D_INFO, "\nRCVN[%02d:%02d]", channel, rank);
+ break;
+ case WDQS:
+ DPF(D_INFO, "\nWDQS[%02d:%02d]", channel, rank);
+ break;
+ case WDQX:
+ DPF(D_INFO, "\nWDQx[%02d:%02d]", channel, rank);
+ break;
+ case RDQS:
+ DPF(D_INFO, "\nRDQS[%02d:%02d]", channel, rank);
+ break;
+ case VREF:
+ DPF(D_INFO, "\nVREF[%02d:%02d]", channel, rank);
+ break;
+ case WCMD:
+ DPF(D_INFO, "\nWCMD[%02d:%02d]", channel, rank);
+ break;
+ case WCTL:
+ DPF(D_INFO, "\nWCTL[%02d:%02d]", channel, rank);
+ break;
+ case WCLK:
+ DPF(D_INFO, "\nWCLK[%02d:%02d]", channel, rank);
+ break;
+ default:
+ break;
+ }
+
+ for (bl = 0; bl < (NUM_BYTE_LANES / bl_divisor); bl++) {
+ switch (algo) {
+ case RCVN:
+ DPF(D_INFO, " %03d", get_rcvn(channel, rank, bl));
+ break;
+ case WDQS:
+ DPF(D_INFO, " %03d", get_wdqs(channel, rank, bl));
+ break;
+ case WDQX:
+ DPF(D_INFO, " %03d", get_wdq(channel, rank, bl));
+ break;
+ case RDQS:
+ DPF(D_INFO, " %03d", get_rdqs(channel, rank, bl));
+ break;
+ case VREF:
+ DPF(D_INFO, " %03d", get_vref(channel, bl));
+ break;
+ case WCMD:
+ DPF(D_INFO, " %03d", get_wcmd(channel));
+ break;
+ case WCTL:
+ DPF(D_INFO, " %03d", get_wctl(channel, rank));
+ break;
+ case WCLK:
+ DPF(D_INFO, " %03d", get_wclk(channel, rank));
+ break;
+ default:
+ break;
+ }
+ }
+}
+
+void print_timings(struct mrc_params *mrc_params)
+{
+ uint8_t algo;
+ uint8_t channel;
+ uint8_t rank;
+ uint8_t bl_divisor = (mrc_params->channel_width == X16) ? 2 : 1;
+
+ DPF(D_INFO, "\n---------------------------");
+ DPF(D_INFO, "\nALGO[CH:RK] BL0 BL1 BL2 BL3");
+ DPF(D_INFO, "\n===========================");
+
+ for (algo = 0; algo < MAX_ALGOS; algo++) {
+ for (channel = 0; channel < NUM_CHANNELS; channel++) {
+ if (mrc_params->channel_enables & (1 << channel)) {
+ for (rank = 0; rank < NUM_RANKS; rank++) {
+ if (mrc_params->rank_enables &
+ (1 << rank)) {
+ print_timings_internal(algo,
+ channel, rank,
+ bl_divisor);
+ }
+ }
+ }
+ }
+ }
+
+ DPF(D_INFO, "\n---------------------------");
+ DPF(D_INFO, "\n");
+}
projects / project / bcm63xx / u-boot.git / commitdiff