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Diffstat (limited to 'arch/arm/mach-uniphier/dram/umc-ld20.c')
-rw-r--r--arch/arm/mach-uniphier/dram/umc-ld20.c636
1 files changed, 0 insertions, 636 deletions
diff --git a/arch/arm/mach-uniphier/dram/umc-ld20.c b/arch/arm/mach-uniphier/dram/umc-ld20.c
deleted file mode 100644
index 500c1c11ba..0000000000
--- a/arch/arm/mach-uniphier/dram/umc-ld20.c
+++ /dev/null
@@ -1,636 +0,0 @@
-/*
- * Copyright (C) 2016-2017 Socionext Inc.
- *
- * based on commit 5ffd75ecd4929f22361ef65a35f0331d2fbc0f35 of Diag
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <linux/bitops.h>
-#include <linux/compat.h>
-#include <linux/errno.h>
-#include <linux/io.h>
-#include <linux/sizes.h>
-#include <asm/processor.h>
-
-#include "../init.h"
-#include "ddruqphy-regs.h"
-#include "umc64-regs.h"
-
-#define DRAM_CH_NR 3
-
-enum dram_freq {
- DRAM_FREQ_1866M,
- DRAM_FREQ_NR,
-};
-
-enum dram_size {
- DRAM_SZ_256M,
- DRAM_SZ_512M,
- DRAM_SZ_NR,
-};
-
-enum dram_board { /* board type */
- DRAM_BOARD_LD20_REF, /* LD20 reference */
- DRAM_BOARD_LD20_GLOBAL, /* LD20 TV */
- DRAM_BOARD_LD20_C1, /* LD20 TV C1 */
- DRAM_BOARD_LD21_REF, /* LD21 reference */
- DRAM_BOARD_LD21_GLOBAL, /* LD21 TV */
- DRAM_BOARD_NR,
-};
-
-/* PHY */
-static const int ddrphy_adrctrl[DRAM_BOARD_NR][DRAM_CH_NR] = {
- {268 - 262, 268 - 263, 268 - 378}, /* LD20 reference */
- {268 - 262, 268 - 263, 268 - 378}, /* LD20 TV */
- {268 - 262, 268 - 263, 268 - 378}, /* LD20 TV C1 */
- {268 - 212, 268 - 268, /* No CH2 */}, /* LD21 reference */
- {268 - 212, 268 - 268, /* No CH2 */}, /* LD21 TV */
-};
-
-static const int ddrphy_dlltrimclk[DRAM_BOARD_NR][DRAM_CH_NR] = {
- {268, 268, 268}, /* LD20 reference */
- {268, 268, 268}, /* LD20 TV */
- {189, 189, 189}, /* LD20 TV C1 */
- {268, 268 + 252, /* No CH2 */}, /* LD21 reference */
- {268, 268 + 202, /* No CH2 */}, /* LD21 TV */
-};
-
-static const int ddrphy_dllrecalib[DRAM_BOARD_NR][DRAM_CH_NR] = {
- {268 - 378, 268 - 263, 268 - 378}, /* LD20 reference */
- {268 - 378, 268 - 263, 268 - 378}, /* LD20 TV */
- {268 - 378, 268 - 263, 268 - 378}, /* LD20 TV C1 */
- {268 - 212, 268 - 536, /* No CH2 */}, /* LD21 reference */
- {268 - 212, 268 - 536, /* No CH2 */}, /* LD21 TV */
-};
-
-static const u32 ddrphy_phy_pad_ctrl[DRAM_BOARD_NR][DRAM_CH_NR] = {
- {0x50B840B1, 0x50B840B1, 0x50B840B1}, /* LD20 reference */
- {0x50BB40B1, 0x50BB40B1, 0x50BB40B1}, /* LD20 TV */
- {0x50BB40B1, 0x50BB40B1, 0x50BB40B1}, /* LD20 TV C1 */
- {0x50BB40B4, 0x50B840B1, /* No CH2 */}, /* LD21 reference */
- {0x50BB40B4, 0x50B840B1, /* No CH2 */}, /* LD21 TV */
-};
-
-static const u32 ddrphy_scl_gate_timing[DRAM_CH_NR] = {
- 0x00000140, 0x00000180, 0x00000140
-};
-
-static const short ddrphy_op_dq_shift_val_ld20[DRAM_CH_NR][32] = {
- {
- 2, 1, 0, 1, 2, 1, 1, 1,
- 2, 1, 1, 2, 1, 1, 1, 1,
- 1, 2, 1, 1, 1, 2, 1, 1,
- 2, 2, 0, 1, 1, 2, 2, 1,
- },
- {
- 1, 1, 0, 1, 2, 2, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 0, 0, 1, 1, 0, 0,
- 0, 1, 1, 1, 2, 1, 2, 1,
- },
- {
- 2, 2, 0, 2, 1, 1, 2, 1,
- 1, 1, 0, 1, 1, -1, 1, 1,
- 2, 2, 2, 2, 1, 1, 1, 1,
- 1, 1, 1, 0, 2, 2, 1, 2,
- },
-};
-
-static const short ddrphy_op_dq_shift_val_ld21[DRAM_CH_NR][32] = {
- {
- 1, 1, 0, 1, 1, 1, 1, 1,
- 1, 0, 0, 0, 1, 1, 0, 2,
- 1, 1, 0, 0, 1, 1, 1, 1,
- 1, 0, 0, 0, 1, 0, 0, 1,
- },
- { 1, 0, 2, 1, 1, 1, 1, 0,
- 1, 0, 0, 1, 0, 1, 0, 0,
- 1, 0, 1, 0, 1, 1, 1, 0,
- 1, 1, 1, 1, 0, 1, 0, 0,
- },
- /* No CH2 */
-};
-
-static const short (* const ddrphy_op_dq_shift_val[DRAM_BOARD_NR])[32] = {
- ddrphy_op_dq_shift_val_ld20, /* LD20 reference */
- ddrphy_op_dq_shift_val_ld20, /* LD20 TV */
- ddrphy_op_dq_shift_val_ld20, /* LD20 TV C */
- ddrphy_op_dq_shift_val_ld21, /* LD21 reference */
- ddrphy_op_dq_shift_val_ld21, /* LD21 TV */
-};
-
-static const short ddrphy_ip_dq_shift_val_ld20[DRAM_CH_NR][32] = {
- {
- 3, 3, 3, 2, 3, 2, 0, 2,
- 2, 3, 3, 1, 2, 2, 2, 2,
- 2, 2, 2, 2, 0, 1, 1, 1,
- 2, 2, 2, 2, 3, 0, 2, 2,
- },
- {
- 2, 2, 1, 1, -1, 1, 1, 1,
- 2, 0, 2, 2, 2, 1, 0, 2,
- 2, 1, 2, 1, 0, 1, 1, 1,
- 2, 2, 2, 2, 2, 2, 2, 2,
- },
- {
- 2, 2, 3, 2, 1, 2, 2, 2,
- 2, 3, 4, 2, 3, 4, 3, 3,
- 2, 2, 1, 2, 1, 1, 1, 1,
- 2, 2, 2, 2, 1, 2, 2, 1,
- },
-};
-
-static const short ddrphy_ip_dq_shift_val_ld21[DRAM_CH_NR][32] = {
- {
- 2, 2, 2, 2, 1, 2, 2, 2,
- 2, 3, 3, 2, 2, 2, 2, 2,
- 2, 1, 2, 2, 1, 1, 1, 1,
- 2, 2, 2, 3, 1, 2, 2, 2,
- },
- {
- 3, 4, 4, 1, 0, 1, 1, 1,
- 1, 2, 1, 2, 2, 3, 3, 2,
- 1, 0, 2, 1, 1, 0, 1, 0,
- 0, 1, 0, 0, 1, 1, 0, 1,
- },
- /* No CH2 */
-};
-
-static const short (* const ddrphy_ip_dq_shift_val[DRAM_BOARD_NR])[32] = {
- ddrphy_ip_dq_shift_val_ld20, /* LD20 reference */
- ddrphy_ip_dq_shift_val_ld20, /* LD20 TV */
- ddrphy_ip_dq_shift_val_ld20, /* LD20 TV C */
- ddrphy_ip_dq_shift_val_ld21, /* LD21 reference */
- ddrphy_ip_dq_shift_val_ld21, /* LD21 TV */
-};
-
-static void ddrphy_select_lane(void __iomem *phy_base, unsigned int lane,
- unsigned int bit)
-{
- WARN_ON(lane >= 1 << PHY_LANE_SEL_LANE_WIDTH);
- WARN_ON(bit >= 1 << PHY_LANE_SEL_BIT_WIDTH);
-
- writel((bit << PHY_LANE_SEL_BIT_SHIFT) |
- (lane << PHY_LANE_SEL_LANE_SHIFT),
- phy_base + PHY_LANE_SEL);
-}
-
-#define DDRPHY_EFUSEMON (void *)0x5f900118
-
-static void ddrphy_init(void __iomem *phy_base, enum dram_board board, int ch)
-{
- writel(0x0C001001, phy_base + PHY_UNIQUIFY_TSMC_IO_1);
- while (!(readl(phy_base + PHY_UNIQUIFY_TSMC_IO_1) & BIT(1)))
- cpu_relax();
-
- if (readl(DDRPHY_EFUSEMON) & BIT(ch))
- writel(0x00000000, phy_base + PHY_UNIQUIFY_TSMC_IO_1);
- else
- writel(0x0C001000, phy_base + PHY_UNIQUIFY_TSMC_IO_1);
-
- writel(0x00000000, phy_base + PHY_DLL_INCR_TRIM_3);
- writel(0x00000000, phy_base + PHY_DLL_INCR_TRIM_1);
- ddrphy_select_lane(phy_base, 0, 0);
- writel(0x00000005, phy_base + PHY_DLL_TRIM_1);
- writel(0x0000000a, phy_base + PHY_DLL_TRIM_3);
- ddrphy_select_lane(phy_base, 6, 0);
- writel(0x00000005, phy_base + PHY_DLL_TRIM_1);
- writel(0x0000000a, phy_base + PHY_DLL_TRIM_3);
- ddrphy_select_lane(phy_base, 12, 0);
- writel(0x00000005, phy_base + PHY_DLL_TRIM_1);
- writel(0x0000000a, phy_base + PHY_DLL_TRIM_3);
- ddrphy_select_lane(phy_base, 18, 0);
- writel(0x00000005, phy_base + PHY_DLL_TRIM_1);
- writel(0x0000000a, phy_base + PHY_DLL_TRIM_3);
- writel(0x00000001, phy_base + PHY_SCL_WINDOW_TRIM);
- writel(0x00000000, phy_base + PHY_UNQ_ANALOG_DLL_1);
- writel(ddrphy_phy_pad_ctrl[board][ch], phy_base + PHY_PAD_CTRL);
- writel(0x00000070, phy_base + PHY_VREF_TRAINING);
- writel(0x01000075, phy_base + PHY_SCL_CONFIG_1);
- writel(0x00000501, phy_base + PHY_SCL_CONFIG_2);
- writel(0x00000000, phy_base + PHY_SCL_CONFIG_3);
- writel(0x000261c0, phy_base + PHY_DYNAMIC_WRITE_BIT_LVL);
- writel(0x00000000, phy_base + PHY_SCL_CONFIG_4);
- writel(ddrphy_scl_gate_timing[ch], phy_base + PHY_SCL_GATE_TIMING);
- writel(0x02a000a0, phy_base + PHY_WRLVL_DYN_ODT);
- writel(0x00840004, phy_base + PHY_WRLVL_ON_OFF);
- writel(0x0000020d, phy_base + PHY_DLL_ADRCTRL);
- ddrphy_select_lane(phy_base, 0, 0);
- writel(0x0000008d, phy_base + PHY_DLL_TRIM_CLK);
- writel(0xa800100d, phy_base + PHY_DLL_RECALIB);
- writel(0x00005076, phy_base + PHY_SCL_LATENCY);
-}
-
-static int ddrphy_to_dly_step(void __iomem *phy_base, unsigned int freq,
- int delay)
-{
- int mdl;
-
- mdl = (readl(phy_base + PHY_DLL_ADRCTRL) & PHY_DLL_ADRCTRL_MDL_MASK) >>
- PHY_DLL_ADRCTRL_MDL_SHIFT;
-
- return DIV_ROUND_CLOSEST((long)freq * delay * mdl, 2 * 1000000L);
-}
-
-static void ddrphy_set_delay(void __iomem *phy_base, unsigned int reg,
- u32 mask, u32 incr, int dly_step)
-{
- u32 tmp;
-
- tmp = readl(phy_base + reg);
- tmp &= ~mask;
- tmp |= min_t(u32, abs(dly_step), mask);
-
- if (dly_step >= 0)
- tmp |= incr;
- else
- tmp &= ~incr;
-
- writel(tmp, phy_base + reg);
-}
-
-static void ddrphy_set_dll_recalib(void __iomem *phy_base, int dly_step)
-{
- ddrphy_set_delay(phy_base, PHY_DLL_RECALIB,
- PHY_DLL_RECALIB_TRIM_MASK, PHY_DLL_RECALIB_INCR,
- dly_step);
-}
-
-static void ddrphy_set_dll_adrctrl(void __iomem *phy_base, int dly_step)
-{
- ddrphy_set_delay(phy_base, PHY_DLL_ADRCTRL,
- PHY_DLL_ADRCTRL_TRIM_MASK, PHY_DLL_ADRCTRL_INCR,
- dly_step);
-}
-
-static void ddrphy_set_dll_trim_clk(void __iomem *phy_base, int dly_step)
-{
- ddrphy_select_lane(phy_base, 0, 0);
-
- ddrphy_set_delay(phy_base, PHY_DLL_TRIM_CLK,
- PHY_DLL_TRIM_CLK_MASK, PHY_DLL_TRIM_CLK_INCR,
- dly_step);
-}
-
-static void ddrphy_init_tail(void __iomem *phy_base, enum dram_board board,
- unsigned int freq, int ch)
-{
- int step;
-
- step = ddrphy_to_dly_step(phy_base, freq, ddrphy_adrctrl[board][ch]);
- ddrphy_set_dll_adrctrl(phy_base, step);
-
- step = ddrphy_to_dly_step(phy_base, freq, ddrphy_dlltrimclk[board][ch]);
- ddrphy_set_dll_trim_clk(phy_base, step);
-
- step = ddrphy_to_dly_step(phy_base, freq, ddrphy_dllrecalib[board][ch]);
- ddrphy_set_dll_recalib(phy_base, step);
-}
-
-static void ddrphy_shift_one_dq(void __iomem *phy_base, unsigned int reg,
- u32 mask, u32 incr, short shift_val)
-{
- u32 tmp;
- int val;
-
- tmp = readl(phy_base + reg);
-
- val = tmp & mask;
- if (!(tmp & incr))
- val = -val;
-
- val += shift_val;
-
- tmp &= ~(incr | mask);
- tmp |= min_t(u32, abs(val), mask);
- if (val >= 0)
- tmp |= incr;
-
- writel(tmp, phy_base + reg);
-}
-
-static void ddrphy_shift_dq(void __iomem *phy_base, unsigned int reg,
- u32 mask, u32 incr, u32 override,
- const short *shift_val_array)
-{
- u32 tmp;
- int dx, bit;
-
- tmp = readl(phy_base + reg);
- tmp |= override;
- writel(tmp, phy_base + reg);
-
- for (dx = 0; dx < 4; dx++) {
- for (bit = 0; bit < 8; bit++) {
- ddrphy_select_lane(phy_base,
- (PHY_BITLVL_DLY_WIDTH + 1) * dx,
- bit);
-
- ddrphy_shift_one_dq(phy_base, reg, mask, incr,
- shift_val_array[dx * 8 + bit]);
- }
- }
-
- ddrphy_select_lane(phy_base, 0, 0);
-}
-
-static int ddrphy_training(void __iomem *phy_base, enum dram_board board,
- int ch)
-{
- writel(0x0000000f, phy_base + PHY_WRLVL_AUTOINC_TRIM);
- writel(0x00010000, phy_base + PHY_DLL_TRIM_2);
- writel(0x50000000, phy_base + PHY_SCL_START);
-
- while (readl(phy_base + PHY_SCL_START) & PHY_SCL_START_GO_DONE)
- cpu_relax();
-
- writel(0x00000000, phy_base + PHY_DISABLE_GATING_FOR_SCL);
- writel(0xff00ff00, phy_base + PHY_SCL_DATA_0);
- writel(0xff00ff00, phy_base + PHY_SCL_DATA_1);
- writel(0xFBF8FFFF, phy_base + PHY_SCL_START_ADDR);
- writel(0x11000000, phy_base + PHY_SCL_START);
-
- while (readl(phy_base + PHY_SCL_START) & PHY_SCL_START_GO_DONE)
- cpu_relax();
-
- writel(0xFBF0FFFF, phy_base + PHY_SCL_START_ADDR);
- writel(0x30500000, phy_base + PHY_SCL_START);
-
- while (readl(phy_base + PHY_SCL_START) & PHY_SCL_START_GO_DONE)
- cpu_relax();
-
- writel(0x00000001, phy_base + PHY_DISABLE_GATING_FOR_SCL);
- writel(0x00000010, phy_base + PHY_SCL_MAIN_CLK_DELTA);
- writel(0x789b3de0, phy_base + PHY_SCL_DATA_0);
- writel(0xf10e4a56, phy_base + PHY_SCL_DATA_1);
- writel(0x11000000, phy_base + PHY_SCL_START);
-
- while (readl(phy_base + PHY_SCL_START) & PHY_SCL_START_GO_DONE)
- cpu_relax();
-
- writel(0x34000000, phy_base + PHY_SCL_START);
-
- while (readl(phy_base + PHY_SCL_START) & PHY_SCL_START_GO_DONE)
- cpu_relax();
-
- writel(0x00000003, phy_base + PHY_DISABLE_GATING_FOR_SCL);
-
- writel(0x000261c0, phy_base + PHY_DYNAMIC_WRITE_BIT_LVL);
- writel(0x00003270, phy_base + PHY_DYNAMIC_BIT_LVL);
- writel(0x011BD0C4, phy_base + PHY_DSCL_CNT);
-
- /* shift ip_dq trim */
- ddrphy_shift_dq(phy_base,
- PHY_IP_DQ_DQS_BITWISE_TRIM,
- PHY_IP_DQ_DQS_BITWISE_TRIM_MASK,
- PHY_IP_DQ_DQS_BITWISE_TRIM_INC,
- PHY_IP_DQ_DQS_BITWISE_TRIM_OVERRIDE,
- ddrphy_ip_dq_shift_val[board][ch]);
-
- /* shift op_dq trim */
- ddrphy_shift_dq(phy_base,
- PHY_OP_DQ_DM_DQS_BITWISE_TRIM,
- PHY_OP_DQ_DM_DQS_BITWISE_TRIM_MASK,
- PHY_OP_DQ_DM_DQS_BITWISE_TRIM_INC,
- PHY_OP_DQ_DM_DQS_BITWISE_TRIM_OVERRIDE,
- ddrphy_op_dq_shift_val[board][ch]);
-
- return 0;
-}
-
-/* UMC */
-static const u32 umc_initctla[DRAM_FREQ_NR] = {0x71016D11};
-static const u32 umc_initctlb[DRAM_FREQ_NR] = {0x07E390AC};
-static const u32 umc_initctlc[DRAM_FREQ_NR] = {0x00FF00FF};
-static const u32 umc_drmmr0[DRAM_FREQ_NR] = {0x00000114};
-static const u32 umc_drmmr2[DRAM_FREQ_NR] = {0x000002a0};
-
-static const u32 umc_memconf0a[DRAM_FREQ_NR][DRAM_SZ_NR] = {
- /* 256MB 512MB */
- {0x00000601, 0x00000801}, /* 1866 MHz */
-};
-
-static const u32 umc_memconf0b[DRAM_FREQ_NR][DRAM_SZ_NR] = {
- /* 256MB 512MB */
- {0x00000120, 0x00000130}, /* 1866 MHz */
-};
-
-static const u32 umc_memconfch[DRAM_FREQ_NR][DRAM_SZ_NR] = {
- /* 256MB 512MB */
- {0x00033603, 0x00033803}, /* 1866 MHz */
-};
-
-static const u32 umc_cmdctla[DRAM_FREQ_NR] = {0x060D0D20};
-static const u32 umc_cmdctlb[DRAM_FREQ_NR] = {0x2D211C08};
-static const u32 umc_cmdctlc[DRAM_FREQ_NR] = {0x00150C04};
-static const u32 umc_cmdctle[DRAM_FREQ_NR][DRAM_SZ_NR] = {
- /* 256MB 512MB */
- {0x0049071D, 0x0078071D}, /* 1866 MHz */
-};
-
-static const u32 umc_rdatactl[DRAM_FREQ_NR] = {0x00000610};
-static const u32 umc_wdatactl[DRAM_FREQ_NR] = {0x00000204};
-static const u32 umc_odtctl[DRAM_FREQ_NR] = {0x02000002};
-static const u32 umc_dataset[DRAM_FREQ_NR] = {0x04000000};
-
-static const u32 umc_flowctla[DRAM_FREQ_NR] = {0x0081E01E};
-static const u32 umc_directbusctrla[DRAM_CH_NR] = {
- 0x00000000, 0x00000001, 0x00000001
-};
-
-static void umc_poll_phy_init_complete(void __iomem *dc_base)
-{
- /* Wait for PHY Init Complete */
- while (!(readl(dc_base + UMC_DFISTCTLC) & BIT(0)))
- cpu_relax();
-}
-
-static int umc_dc_init(void __iomem *dc_base, unsigned int freq,
- unsigned long size, int ch)
-{
- enum dram_freq freq_e;
- enum dram_size size_e;
-
- switch (freq) {
- case 1866:
- freq_e = DRAM_FREQ_1866M;
- break;
- default:
- pr_err("unsupported DRAM frequency %ud MHz\n", freq);
- return -EINVAL;
- }
-
- switch (size) {
- case 0:
- return 0;
- case SZ_256M:
- size_e = DRAM_SZ_256M;
- break;
- case SZ_512M:
- size_e = DRAM_SZ_512M;
- break;
- default:
- pr_err("unsupported DRAM size 0x%08lx (per 16bit) for ch%d\n",
- size, ch);
- return -EINVAL;
- }
-
- writel(0x00000001, dc_base + UMC_DFICSOVRRD);
- writel(0x00000000, dc_base + UMC_DFITURNOFF);
-
- writel(umc_initctla[freq_e], dc_base + UMC_INITCTLA);
- writel(umc_initctlb[freq_e], dc_base + UMC_INITCTLB);
- writel(umc_initctlc[freq_e], dc_base + UMC_INITCTLC);
-
- writel(umc_drmmr0[freq_e], dc_base + UMC_DRMMR0);
- writel(0x00000004, dc_base + UMC_DRMMR1);
- writel(umc_drmmr2[freq_e], dc_base + UMC_DRMMR2);
- writel(0x00000000, dc_base + UMC_DRMMR3);
-
- writel(umc_memconf0a[freq_e][size_e], dc_base + UMC_MEMCONF0A);
- writel(umc_memconf0b[freq_e][size_e], dc_base + UMC_MEMCONF0B);
- writel(umc_memconfch[freq_e][size_e], dc_base + UMC_MEMCONFCH);
- writel(0x00000000, dc_base + UMC_MEMMAPSET);
-
- writel(umc_cmdctla[freq_e], dc_base + UMC_CMDCTLA);
- writel(umc_cmdctlb[freq_e], dc_base + UMC_CMDCTLB);
- writel(umc_cmdctlc[freq_e], dc_base + UMC_CMDCTLC);
- writel(umc_cmdctle[freq_e][size_e], dc_base + UMC_CMDCTLE);
-
- writel(umc_rdatactl[freq_e], dc_base + UMC_RDATACTL_D0);
- writel(umc_rdatactl[freq_e], dc_base + UMC_RDATACTL_D1);
-
- writel(umc_wdatactl[freq_e], dc_base + UMC_WDATACTL_D0);
- writel(umc_wdatactl[freq_e], dc_base + UMC_WDATACTL_D1);
- writel(umc_odtctl[freq_e], dc_base + UMC_ODTCTL_D0);
- writel(umc_odtctl[freq_e], dc_base + UMC_ODTCTL_D1);
- writel(umc_dataset[freq_e], dc_base + UMC_DATASET);
-
- writel(0x00400020, dc_base + UMC_DCCGCTL);
- writel(0x00000003, dc_base + UMC_ACSSETA);
- writel(0x00000103, dc_base + UMC_FLOWCTLG);
- writel(0x00010200, dc_base + UMC_ACSSETB);
-
- writel(umc_flowctla[freq_e], dc_base + UMC_FLOWCTLA);
- writel(0x00004444, dc_base + UMC_FLOWCTLC);
- writel(0x00000000, dc_base + UMC_DFICUPDCTLA);
-
- writel(0x00202000, dc_base + UMC_FLOWCTLB);
- writel(0x00000000, dc_base + UMC_BSICMAPSET);
- writel(0x00000000, dc_base + UMC_ERRMASKA);
- writel(0x00000000, dc_base + UMC_ERRMASKB);
-
- writel(umc_directbusctrla[ch], dc_base + UMC_DIRECTBUSCTRLA);
-
- writel(0x00000001, dc_base + UMC_INITSET);
- /* Wait for PHY Init Complete */
- while (readl(dc_base + UMC_INITSTAT) & BIT(0))
- cpu_relax();
-
- writel(0x2A0A0A00, dc_base + UMC_SPCSETB);
- writel(0x00000000, dc_base + UMC_DFICSOVRRD);
-
- return 0;
-}
-
-static int umc_ch_init(void __iomem *umc_ch_base, void __iomem *phy_ch_base,
- enum dram_board board, unsigned int freq,
- unsigned long size, int ch)
-{
- void __iomem *dc_base = umc_ch_base + 0x00011000;
- void __iomem *phy_base = phy_ch_base;
- int ret;
-
- /* PHY Update Mode (ON) */
- writel(0x8000003f, dc_base + UMC_DFIPUPDCTLA);
-
- /* deassert PHY reset signals */
- writel(UMC_DIOCTLA_CTL_NRST | UMC_DIOCTLA_CFG_NRST,
- dc_base + UMC_DIOCTLA);
-
- ddrphy_init(phy_base, board, ch);
-
- umc_poll_phy_init_complete(dc_base);
-
- ddrphy_init_tail(phy_base, board, freq, ch);
-
- ret = umc_dc_init(dc_base, freq, size, ch);
- if (ret)
- return ret;
-
- ret = ddrphy_training(phy_base, board, ch);
- if (ret)
- return ret;
-
- return 0;
-}
-
-static void um_init(void __iomem *um_base)
-{
- writel(0x000000ff, um_base + UMC_MBUS0);
- writel(0x000000ff, um_base + UMC_MBUS1);
- writel(0x000000ff, um_base + UMC_MBUS2);
- writel(0x00000001, um_base + UMC_MBUS3);
- writel(0x00000001, um_base + UMC_MBUS4);
- writel(0x00000001, um_base + UMC_MBUS5);
- writel(0x00000001, um_base + UMC_MBUS6);
- writel(0x00000001, um_base + UMC_MBUS7);
- writel(0x00000001, um_base + UMC_MBUS8);
- writel(0x00000001, um_base + UMC_MBUS9);
- writel(0x00000001, um_base + UMC_MBUS10);
-}
-
-int uniphier_ld20_umc_init(const struct uniphier_board_data *bd)
-{
- void __iomem *um_base = (void __iomem *)0x5b600000;
- void __iomem *umc_ch_base = (void __iomem *)0x5b800000;
- void __iomem *phy_ch_base = (void __iomem *)0x6e200000;
- enum dram_board board;
- int ch, ret;
-
- switch (UNIPHIER_BD_BOARD_GET_TYPE(bd->flags)) {
- case UNIPHIER_BD_BOARD_LD20_REF:
- board = DRAM_BOARD_LD20_REF;
- break;
- case UNIPHIER_BD_BOARD_LD20_GLOBAL:
- board = DRAM_BOARD_LD20_GLOBAL;
- break;
- case UNIPHIER_BD_BOARD_LD20_C1:
- board = DRAM_BOARD_LD20_C1;
- break;
- case UNIPHIER_BD_BOARD_LD21_REF:
- board = DRAM_BOARD_LD21_REF;
- break;
- case UNIPHIER_BD_BOARD_LD21_GLOBAL:
- board = DRAM_BOARD_LD21_GLOBAL;
- break;
- default:
- pr_err("unsupported board type %d\n",
- UNIPHIER_BD_BOARD_GET_TYPE(bd->flags));
- return -EINVAL;
- }
-
- for (ch = 0; ch < DRAM_CH_NR; ch++) {
- unsigned long size = bd->dram_ch[ch].size;
- unsigned int width = bd->dram_ch[ch].width;
-
- if (size) {
- ret = umc_ch_init(umc_ch_base, phy_ch_base, board,
- bd->dram_freq, size / (width / 16),
- ch);
- if (ret) {
- pr_err("failed to initialize UMC ch%d\n", ch);
- return ret;
- }
- }
-
- umc_ch_base += 0x00200000;
- phy_ch_base += 0x00004000;
- }
-
- um_init(um_base);
-
- return 0;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-09 07:43:06 +0000