[U-Boot] [PATCH v4 12/17] ddr: altera: Restructure Stratix 10 SDRAM driver
Ley Foon Tan
ley.foon.tan at intel.com
Thu Sep 12 10:11:00 UTC 2019
Restructure Stratix 10 SDRAM driver. Move common code to separate
file, in preparation to support SDRAM driver for Agilex.
Signed-off-by: Ley Foon Tan <ley.foon.tan at intel.com>
---
v4:
- Change to use base address from DT.
v3:
- Change sdram_common.* to sdram_soc64.*
---
drivers/ddr/altera/Makefile | 2 +-
drivers/ddr/altera/sdram_s10.c | 296 +----------------
drivers/ddr/altera/sdram_s10.h | 148 +--------
drivers/ddr/altera/sdram_soc64.c | 304 ++++++++++++++++++
.../ddr/altera/{sdram_s10.h => sdram_soc64.h} | 70 ++--
5 files changed, 341 insertions(+), 479 deletions(-)
create mode 100644 drivers/ddr/altera/sdram_soc64.c
copy drivers/ddr/altera/{sdram_s10.h => sdram_soc64.h} (79%)
diff --git a/drivers/ddr/altera/Makefile b/drivers/ddr/altera/Makefile
index 341ac0d73b..eb8da13b7d 100644
--- a/drivers/ddr/altera/Makefile
+++ b/drivers/ddr/altera/Makefile
@@ -9,5 +9,5 @@
ifdef CONFIG_$(SPL_)ALTERA_SDRAM
obj-$(CONFIG_TARGET_SOCFPGA_GEN5) += sdram_gen5.o sequencer.o
obj-$(CONFIG_TARGET_SOCFPGA_ARRIA10) += sdram_arria10.o
-obj-$(CONFIG_TARGET_SOCFPGA_STRATIX10) += sdram_s10.o
+obj-$(CONFIG_TARGET_SOCFPGA_STRATIX10) += sdram_soc64.o sdram_s10.o
endif
diff --git a/drivers/ddr/altera/sdram_s10.c b/drivers/ddr/altera/sdram_s10.c
index 9578aa743d..fcab3ae3e4 100644
--- a/drivers/ddr/altera/sdram_s10.c
+++ b/drivers/ddr/altera/sdram_s10.c
@@ -14,28 +14,14 @@
#include "sdram_s10.h"
#include <wait_bit.h>
#include <asm/arch/firewall.h>
-#include <asm/arch/system_manager.h>
#include <asm/arch/reset_manager.h>
#include <asm/io.h>
#include <linux/sizes.h>
-struct altera_sdram_priv {
- struct ram_info info;
- struct reset_ctl_bulk resets;
-};
-
-struct altera_sdram_platdata {
- void __iomem *hmc;
- void __iomem *ddr_sch;
- void __iomem *iomhc;
-};
-
DECLARE_GLOBAL_DATA_PTR;
#define DDR_CONFIG(A, B, C, R) (((A) << 24) | ((B) << 16) | ((C) << 8) | (R))
-#define PGTABLE_OFF 0x4000
-
/* The followring are the supported configurations */
u32 ddr_config[] = {
/* DDR_CONFIG(Address order,Bank,Column,Row) */
@@ -62,28 +48,6 @@ u32 ddr_config[] = {
DDR_CONFIG(1, 4, 10, 17),
};
-static u32 hmc_readl(struct altera_sdram_platdata *plat, u32 reg)
-{
- return readl(plat->iomhc + reg);
-}
-
-static u32 hmc_ecc_readl(struct altera_sdram_platdata *plat, u32 reg)
-{
- return readl(plat->hmc + reg);
-}
-
-static u32 hmc_ecc_writel(struct altera_sdram_platdata *plat,
- u32 data, u32 reg)
-{
- return writel(data, plat->hmc + reg);
-}
-
-static u32 ddr_sch_writel(struct altera_sdram_platdata *plat, u32 data,
- u32 reg)
-{
- return writel(data, plat->ddr_sch + reg);
-}
-
int match_ddr_conf(u32 ddr_conf)
{
int i;
@@ -95,193 +59,12 @@ int match_ddr_conf(u32 ddr_conf)
return 0;
}
-static int emif_clear(struct altera_sdram_platdata *plat)
-{
- hmc_ecc_writel(plat, 0, RSTHANDSHAKECTRL);
-
- return wait_for_bit_le32((const void *)(plat->hmc +
- RSTHANDSHAKESTAT),
- DDR_HMC_RSTHANDSHAKE_MASK,
- false, 1000, false);
-}
-
-static int emif_reset(struct altera_sdram_platdata *plat)
-{
- u32 c2s, s2c, ret;
-
- c2s = hmc_ecc_readl(plat, RSTHANDSHAKECTRL) & DDR_HMC_RSTHANDSHAKE_MASK;
- s2c = hmc_ecc_readl(plat, RSTHANDSHAKESTAT) & DDR_HMC_RSTHANDSHAKE_MASK;
-
- debug("DDR: c2s=%08x s2c=%08x nr0=%08x nr1=%08x nr2=%08x dst=%08x\n",
- c2s, s2c, hmc_readl(plat, NIOSRESERVED0),
- hmc_readl(plat, NIOSRESERVED1), hmc_readl(plat, NIOSRESERVED2),
- hmc_readl(plat, DRAMSTS));
-
- if (s2c && emif_clear(plat)) {
- printf("DDR: emif_clear() failed\n");
- return -1;
- }
-
- debug("DDR: Triggerring emif reset\n");
- hmc_ecc_writel(plat, DDR_HMC_CORE2SEQ_INT_REQ, RSTHANDSHAKECTRL);
-
- /* if seq2core[3] = 0, we are good */
- ret = wait_for_bit_le32((const void *)(plat->hmc +
- RSTHANDSHAKESTAT),
- DDR_HMC_SEQ2CORE_INT_RESP_MASK,
- false, 1000, false);
- if (ret) {
- printf("DDR: failed to get ack from EMIF\n");
- return ret;
- }
-
- ret = emif_clear(plat);
- if (ret) {
- printf("DDR: emif_clear() failed\n");
- return ret;
- }
-
- debug("DDR: %s triggered successly\n", __func__);
- return 0;
-}
-
-static int poll_hmc_clock_status(void)
-{
- return wait_for_bit_le32((const void *)(socfpga_sysmgr_base +
- SYSMGR_SOC64_HMC_CLK),
- SYSMGR_HMC_CLK_STATUS_MSK, true, 1000, false);
-}
-
-static void sdram_clear_mem(phys_addr_t addr, phys_size_t size)
-{
- phys_size_t i;
-
- if (addr % CONFIG_SYS_CACHELINE_SIZE) {
- printf("DDR: address 0x%llx is not cacheline size aligned.\n",
- addr);
- hang();
- }
-
- if (size % CONFIG_SYS_CACHELINE_SIZE) {
- printf("DDR: size 0x%llx is not multiple of cacheline size\n",
- size);
- hang();
- }
-
- /* Use DC ZVA instruction to clear memory to zeros by a cache line */
- for (i = 0; i < size; i = i + CONFIG_SYS_CACHELINE_SIZE) {
- asm volatile("dc zva, %0"
- :
- : "r"(addr)
- : "memory");
- addr += CONFIG_SYS_CACHELINE_SIZE;
- }
-}
-
-static void sdram_init_ecc_bits(bd_t *bd)
-{
- phys_size_t size, size_init;
- phys_addr_t start_addr;
- int bank = 0;
- unsigned int start = get_timer(0);
-
- icache_enable();
-
- start_addr = bd->bi_dram[0].start;
- size = bd->bi_dram[0].size;
-
- /* Initialize small block for page table */
- memset((void *)start_addr, 0, PGTABLE_SIZE + PGTABLE_OFF);
- gd->arch.tlb_addr = start_addr + PGTABLE_OFF;
- gd->arch.tlb_size = PGTABLE_SIZE;
- start_addr += PGTABLE_SIZE + PGTABLE_OFF;
- size -= (PGTABLE_OFF + PGTABLE_SIZE);
- dcache_enable();
-
- while (1) {
- while (size) {
- size_init = min((phys_addr_t)SZ_1G, (phys_addr_t)size);
- sdram_clear_mem(start_addr, size_init);
- size -= size_init;
- start_addr += size_init;
- WATCHDOG_RESET();
- }
-
- bank++;
- if (bank >= CONFIG_NR_DRAM_BANKS)
- break;
-
- start_addr = bd->bi_dram[bank].start;
- size = bd->bi_dram[bank].size;
- }
-
- dcache_disable();
- icache_disable();
-
- printf("SDRAM-ECC: Initialized success with %d ms\n",
- (unsigned int)get_timer(start));
-}
-
-static void sdram_size_check(bd_t *bd)
-{
- phys_size_t total_ram_check = 0;
- phys_size_t ram_check = 0;
- phys_addr_t start = 0;
- int bank;
-
- /* Sanity check ensure correct SDRAM size specified */
- debug("DDR: Running SDRAM size sanity check\n");
-
- for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
- start = bd->bi_dram[bank].start;
- while (ram_check < bd->bi_dram[bank].size) {
- ram_check += get_ram_size((void *)(start + ram_check),
- (phys_size_t)SZ_1G);
- }
- total_ram_check += ram_check;
- ram_check = 0;
- }
-
- /* If the ram_size is 2GB smaller, we can assume the IO space is
- * not mapped in. gd->ram_size is the actual size of the dram
- * not the accessible size.
- */
- if (total_ram_check != gd->ram_size) {
- puts("DDR: SDRAM size check failed!\n");
- hang();
- }
-
- debug("DDR: SDRAM size check passed!\n");
-}
-
-/**
- * sdram_calculate_size() - Calculate SDRAM size
- *
- * Calculate SDRAM device size based on SDRAM controller parameters.
- * Size is specified in bytes.
- */
-static phys_size_t sdram_calculate_size(struct altera_sdram_platdata *plat)
-{
- u32 dramaddrw = hmc_readl(plat, DRAMADDRW);
-
- phys_size_t size = 1 << (DRAMADDRW_CFG_CS_ADDR_WIDTH(dramaddrw) +
- DRAMADDRW_CFG_BANK_GRP_ADDR_WIDTH(dramaddrw) +
- DRAMADDRW_CFG_BANK_ADDR_WIDTH(dramaddrw) +
- DRAMADDRW_CFG_ROW_ADDR_WIDTH(dramaddrw) +
- DRAMADDRW_CFG_COL_ADDR_WIDTH(dramaddrw));
-
- size *= (2 << (hmc_ecc_readl(plat, DDRIOCTRL) &
- DDR_HMC_DDRIOCTRL_IOSIZE_MSK));
-
- return size;
-}
-
/**
* sdram_mmr_init_full() - Function to initialize SDRAM MMR
*
* Initialize the SDRAM MMR.
*/
-static int sdram_mmr_init_full(struct udevice *dev)
+int sdram_mmr_init_full(struct udevice *dev)
{
struct altera_sdram_platdata *plat = dev->platdata;
struct altera_sdram_priv *priv = dev_get_priv(dev);
@@ -534,80 +317,3 @@ static int sdram_mmr_init_full(struct udevice *dev)
return 0;
}
-static int altera_sdram_ofdata_to_platdata(struct udevice *dev)
-{
- struct altera_sdram_platdata *plat = dev->platdata;
- fdt_addr_t addr;
-
- addr = dev_read_addr_index(dev, 0);
- if (addr == FDT_ADDR_T_NONE)
- return -EINVAL;
- plat->ddr_sch = (void __iomem *)addr;
-
- addr = dev_read_addr_index(dev, 1);
- if (addr == FDT_ADDR_T_NONE)
- return -EINVAL;
- plat->iomhc = (void __iomem *)addr;
-
- addr = dev_read_addr_index(dev, 2);
- if (addr == FDT_ADDR_T_NONE)
- return -EINVAL;
- plat->hmc = (void __iomem *)addr;
-
- return 0;
-}
-
-static int altera_sdram_probe(struct udevice *dev)
-{
- int ret;
- struct altera_sdram_priv *priv = dev_get_priv(dev);
-
- ret = reset_get_bulk(dev, &priv->resets);
- if (ret) {
- dev_err(dev, "Can't get reset: %d\n", ret);
- return -ENODEV;
- }
- reset_deassert_bulk(&priv->resets);
-
- if (sdram_mmr_init_full(dev) != 0) {
- puts("SDRAM init failed.\n");
- goto failed;
- }
-
- return 0;
-
-failed:
- reset_release_bulk(&priv->resets);
- return -ENODEV;
-}
-
-static int altera_sdram_get_info(struct udevice *dev,
- struct ram_info *info)
-{
- struct altera_sdram_priv *priv = dev_get_priv(dev);
-
- info->base = priv->info.base;
- info->size = priv->info.size;
-
- return 0;
-}
-
-static struct ram_ops altera_sdram_ops = {
- .get_info = altera_sdram_get_info,
-};
-
-static const struct udevice_id altera_sdram_ids[] = {
- { .compatible = "altr,sdr-ctl-s10" },
- { /* sentinel */ }
-};
-
-U_BOOT_DRIVER(altera_sdram) = {
- .name = "altr_sdr_ctl",
- .id = UCLASS_RAM,
- .of_match = altera_sdram_ids,
- .ops = &altera_sdram_ops,
- .ofdata_to_platdata = altera_sdram_ofdata_to_platdata,
- .platdata_auto_alloc_size = sizeof(struct altera_sdram_platdata),
- .probe = altera_sdram_probe,
- .priv_auto_alloc_size = sizeof(struct altera_sdram_priv),
-};
diff --git a/drivers/ddr/altera/sdram_s10.h b/drivers/ddr/altera/sdram_s10.h
index 096c06cba2..cca4cb35ec 100644
--- a/drivers/ddr/altera/sdram_s10.h
+++ b/drivers/ddr/altera/sdram_s10.h
@@ -11,48 +11,6 @@
#define DDR_READ_LATENCY_DELAY 40
#define DDR_ACTIVATE_FAWBANK 0x1
-/* ECC HMC registers */
-#define DDRIOCTRL 0x8
-#define DDRCALSTAT 0xc
-#define DRAMADDRWIDTH 0xe0
-#define ECCCTRL1 0x100
-#define ECCCTRL2 0x104
-#define ERRINTEN 0x110
-#define ERRINTENS 0x114
-#define INTMODE 0x11c
-#define INTSTAT 0x120
-#define AUTOWB_CORRADDR 0x138
-#define ECC_REG2WRECCDATABUS 0x144
-#define ECC_DIAGON 0x150
-#define ECC_DECSTAT 0x154
-#define HPSINTFCSEL 0x210
-#define RSTHANDSHAKECTRL 0x214
-#define RSTHANDSHAKESTAT 0x218
-
-#define DDR_HMC_DDRIOCTRL_IOSIZE_MSK 0x00000003
-#define DDR_HMC_DDRCALSTAT_CAL_MSK BIT(0)
-#define DDR_HMC_ECCCTL_AWB_CNT_RST_SET_MSK BIT(16)
-#define DDR_HMC_ECCCTL_CNT_RST_SET_MSK BIT(8)
-#define DDR_HMC_ECCCTL_ECC_EN_SET_MSK BIT(0)
-#define DDR_HMC_ECCCTL2_RMW_EN_SET_MSK BIT(8)
-#define DDR_HMC_ECCCTL2_AWB_EN_SET_MSK BIT(0)
-#define DDR_HMC_ECC_DIAGON_ECCDIAGON_EN_SET_MSK BIT(16)
-#define DDR_HMC_ECC_DIAGON_WRDIAGON_EN_SET_MSK BIT(0)
-#define DDR_HMC_ERRINTEN_SERRINTEN_EN_SET_MSK BIT(0)
-#define DDR_HMC_ERRINTEN_DERRINTEN_EN_SET_MSK BIT(1)
-#define DDR_HMC_INTSTAT_SERRPENA_SET_MSK BIT(0)
-#define DDR_HMC_INTSTAT_DERRPENA_SET_MSK BIT(1)
-#define DDR_HMC_INTSTAT_ADDRMTCFLG_SET_MSK BIT(16)
-#define DDR_HMC_INTMODE_INTMODE_SET_MSK BIT(0)
-#define DDR_HMC_RSTHANDSHAKE_MASK 0x000000ff
-#define DDR_HMC_CORE2SEQ_INT_REQ 0xF
-#define DDR_HMC_SEQ2CORE_INT_RESP_MASK BIT(3)
-#define DDR_HMC_HPSINTFCSEL_ENABLE_MASK 0x001f1f1f
-
-#define DDR_HMC_ERRINTEN_INTMASK \
- (DDR_HMC_ERRINTEN_SERRINTEN_EN_SET_MSK | \
- DDR_HMC_ERRINTEN_DERRINTEN_EN_SET_MSK)
-
/* NOC DDR scheduler */
#define DDR_SCH_ID_COREID 0
#define DDR_SCH_ID_REVID 0x4
@@ -79,110 +37,6 @@
#define DDR_SCH_DEVTODEV_BUSRDTOWR_OFF 2
#define DDR_SCH_DEVTODEV_BUSWRTORD_OFF 4
-/* HMC MMR IO48 registers */
-#define CTRLCFG0 0x28
-#define CTRLCFG1 0x2c
-#define DRAMTIMING0 0x50
-#define CALTIMING0 0x7c
-#define CALTIMING1 0x80
-#define CALTIMING2 0x84
-#define CALTIMING3 0x88
-#define CALTIMING4 0x8c
-#define CALTIMING9 0xa0
-#define DRAMADDRW 0xa8
-#define DRAMSTS 0xec
-#define NIOSRESERVED0 0x110
-#define NIOSRESERVED1 0x114
-#define NIOSRESERVED2 0x118
-
-#define DRAMADDRW_CFG_COL_ADDR_WIDTH(x) \
- (((x) >> 0) & 0x1F)
-#define DRAMADDRW_CFG_ROW_ADDR_WIDTH(x) \
- (((x) >> 5) & 0x1F)
-#define DRAMADDRW_CFG_BANK_ADDR_WIDTH(x) \
- (((x) >> 10) & 0xF)
-#define DRAMADDRW_CFG_BANK_GRP_ADDR_WIDTH(x) \
- (((x) >> 14) & 0x3)
-#define DRAMADDRW_CFG_CS_ADDR_WIDTH(x) \
- (((x) >> 16) & 0x7)
-
-#define CTRLCFG0_CFG_MEMTYPE(x) \
- (((x) >> 0) & 0xF)
-#define CTRLCFG0_CFG_DIMM_TYPE(x) \
- (((x) >> 4) & 0x7)
-#define CTRLCFG0_CFG_AC_POS(x) \
- (((x) >> 7) & 0x3)
-#define CTRLCFG0_CFG_CTRL_BURST_LEN(x) \
- (((x) >> 9) & 0x1F)
-
-#define CTRLCFG1_CFG_DBC3_BURST_LEN(x) \
- (((x) >> 0) & 0x1F)
-#define CTRLCFG1_CFG_ADDR_ORDER(x) \
- (((x) >> 5) & 0x3)
-#define CTRLCFG1_CFG_CTRL_EN_ECC(x) \
- (((x) >> 7) & 0x1)
-
-#define DRAMTIMING0_CFG_TCL(x) \
- (((x) >> 0) & 0x7F)
-
-#define CALTIMING0_CFG_ACT_TO_RDWR(x) \
- (((x) >> 0) & 0x3F)
-#define CALTIMING0_CFG_ACT_TO_PCH(x) \
- (((x) >> 6) & 0x3F)
-#define CALTIMING0_CFG_ACT_TO_ACT(x) \
- (((x) >> 12) & 0x3F)
-#define CALTIMING0_CFG_ACT_TO_ACT_DB(x) \
- (((x) >> 18) & 0x3F)
-
-#define CALTIMING1_CFG_RD_TO_RD(x) \
- (((x) >> 0) & 0x3F)
-#define CALTIMING1_CFG_RD_TO_RD_DC(x) \
- (((x) >> 6) & 0x3F)
-#define CALTIMING1_CFG_RD_TO_RD_DB(x) \
- (((x) >> 12) & 0x3F)
-#define CALTIMING1_CFG_RD_TO_WR(x) \
- (((x) >> 18) & 0x3F)
-#define CALTIMING1_CFG_RD_TO_WR_DC(x) \
- (((x) >> 24) & 0x3F)
-
-#define CALTIMING2_CFG_RD_TO_WR_DB(x) \
- (((x) >> 0) & 0x3F)
-#define CALTIMING2_CFG_RD_TO_WR_PCH(x) \
- (((x) >> 6) & 0x3F)
-#define CALTIMING2_CFG_RD_AP_TO_VALID(x) \
- (((x) >> 12) & 0x3F)
-#define CALTIMING2_CFG_WR_TO_WR(x) \
- (((x) >> 18) & 0x3F)
-#define CALTIMING2_CFG_WR_TO_WR_DC(x) \
- (((x) >> 24) & 0x3F)
-
-#define CALTIMING3_CFG_WR_TO_WR_DB(x) \
- (((x) >> 0) & 0x3F)
-#define CALTIMING3_CFG_WR_TO_RD(x) \
- (((x) >> 6) & 0x3F)
-#define CALTIMING3_CFG_WR_TO_RD_DC(x) \
- (((x) >> 12) & 0x3F)
-#define CALTIMING3_CFG_WR_TO_RD_DB(x) \
- (((x) >> 18) & 0x3F)
-#define CALTIMING3_CFG_WR_TO_PCH(x) \
- (((x) >> 24) & 0x3F)
-
-#define CALTIMING4_CFG_WR_AP_TO_VALID(x) \
- (((x) >> 0) & 0x3F)
-#define CALTIMING4_CFG_PCH_TO_VALID(x) \
- (((x) >> 6) & 0x3F)
-#define CALTIMING4_CFG_PCH_ALL_TO_VALID(x) \
- (((x) >> 12) & 0x3F)
-#define CALTIMING4_CFG_ARF_TO_VALID(x) \
- (((x) >> 18) & 0xFF)
-#define CALTIMING4_CFG_PDN_TO_VALID(x) \
- (((x) >> 26) & 0x3F)
-
-#define CALTIMING9_CFG_4_ACT_TO_ACT(x) \
- (((x) >> 0) & 0xFF)
-
-/* Firewall DDR scheduler MPFE */
-#define FW_HMC_ADAPTOR_REG_ADDR 0xf8020004
-#define FW_HMC_ADAPTOR_MPU_MASK BIT(0)
+#include "sdram_soc64.h"
#endif /* _SDRAM_S10_H_ */
diff --git a/drivers/ddr/altera/sdram_soc64.c b/drivers/ddr/altera/sdram_soc64.c
new file mode 100644
index 0000000000..3097e0671c
--- /dev/null
+++ b/drivers/ddr/altera/sdram_soc64.c
@@ -0,0 +1,304 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2016-2019 Intel Corporation <www.intel.com>
+ *
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <div64.h>
+#include <fdtdec.h>
+#include <ram.h>
+#include <reset.h>
+#include "sdram_soc64.h"
+#include <wait_bit.h>
+#include <asm/arch/firewall.h>
+#include <asm/arch/system_manager.h>
+#include <asm/arch/reset_manager.h>
+#include <asm/io.h>
+#include <linux/sizes.h>
+
+#define PGTABLE_OFF 0x4000
+
+u32 hmc_readl(struct altera_sdram_platdata *plat, u32 reg)
+{
+ return readl(plat->iomhc + reg);
+}
+
+u32 hmc_ecc_readl(struct altera_sdram_platdata *plat, u32 reg)
+{
+ return readl(plat->hmc + reg);
+}
+
+u32 hmc_ecc_writel(struct altera_sdram_platdata *plat,
+ u32 data, u32 reg)
+{
+ return writel(data, plat->hmc + reg);
+}
+
+u32 ddr_sch_writel(struct altera_sdram_platdata *plat, u32 data,
+ u32 reg)
+{
+ return writel(data, plat->ddr_sch + reg);
+}
+
+int emif_clear(struct altera_sdram_platdata *plat)
+{
+ hmc_ecc_writel(plat, 0, RSTHANDSHAKECTRL);
+
+ return wait_for_bit_le32((const void *)(plat->hmc +
+ RSTHANDSHAKESTAT),
+ DDR_HMC_RSTHANDSHAKE_MASK,
+ false, 1000, false);
+}
+
+int emif_reset(struct altera_sdram_platdata *plat)
+{
+ u32 c2s, s2c, ret;
+
+ c2s = hmc_ecc_readl(plat, RSTHANDSHAKECTRL) & DDR_HMC_RSTHANDSHAKE_MASK;
+ s2c = hmc_ecc_readl(plat, RSTHANDSHAKESTAT) & DDR_HMC_RSTHANDSHAKE_MASK;
+
+ debug("DDR: c2s=%08x s2c=%08x nr0=%08x nr1=%08x nr2=%08x dst=%08x\n",
+ c2s, s2c, hmc_readl(plat, NIOSRESERVED0),
+ hmc_readl(plat, NIOSRESERVED1), hmc_readl(plat, NIOSRESERVED2),
+ hmc_readl(plat, DRAMSTS));
+
+ if (s2c && emif_clear(plat)) {
+ printf("DDR: emif_clear() failed\n");
+ return -1;
+ }
+
+ debug("DDR: Triggerring emif reset\n");
+ hmc_ecc_writel(plat, DDR_HMC_CORE2SEQ_INT_REQ, RSTHANDSHAKECTRL);
+
+ /* if seq2core[3] = 0, we are good */
+ ret = wait_for_bit_le32((const void *)(plat->hmc +
+ RSTHANDSHAKESTAT),
+ DDR_HMC_SEQ2CORE_INT_RESP_MASK,
+ false, 1000, false);
+ if (ret) {
+ printf("DDR: failed to get ack from EMIF\n");
+ return ret;
+ }
+
+ ret = emif_clear(plat);
+ if (ret) {
+ printf("DDR: emif_clear() failed\n");
+ return ret;
+ }
+
+ debug("DDR: %s triggered successly\n", __func__);
+ return 0;
+}
+
+int poll_hmc_clock_status(void)
+{
+ return wait_for_bit_le32((const void *)(socfpga_sysmgr_base +
+ SYSMGR_SOC64_HMC_CLK),
+ SYSMGR_HMC_CLK_STATUS_MSK, true, 1000, false);
+}
+
+void sdram_clear_mem(phys_addr_t addr, phys_size_t size)
+{
+ phys_size_t i;
+
+ if (addr % CONFIG_SYS_CACHELINE_SIZE) {
+ printf("DDR: address 0x%llx is not cacheline size aligned.\n",
+ addr);
+ hang();
+ }
+
+ if (size % CONFIG_SYS_CACHELINE_SIZE) {
+ printf("DDR: size 0x%llx is not multiple of cacheline size\n",
+ size);
+ hang();
+ }
+
+ /* Use DC ZVA instruction to clear memory to zeros by a cache line */
+ for (i = 0; i < size; i = i + CONFIG_SYS_CACHELINE_SIZE) {
+ asm volatile("dc zva, %0"
+ :
+ : "r"(addr)
+ : "memory");
+ addr += CONFIG_SYS_CACHELINE_SIZE;
+ }
+}
+
+void sdram_init_ecc_bits(bd_t *bd)
+{
+ phys_size_t size, size_init;
+ phys_addr_t start_addr;
+ int bank = 0;
+ unsigned int start = get_timer(0);
+
+ icache_enable();
+
+ start_addr = bd->bi_dram[0].start;
+ size = bd->bi_dram[0].size;
+
+ /* Initialize small block for page table */
+ memset((void *)start_addr, 0, PGTABLE_SIZE + PGTABLE_OFF);
+ gd->arch.tlb_addr = start_addr + PGTABLE_OFF;
+ gd->arch.tlb_size = PGTABLE_SIZE;
+ start_addr += PGTABLE_SIZE + PGTABLE_OFF;
+ size -= (PGTABLE_OFF + PGTABLE_SIZE);
+ dcache_enable();
+
+ while (1) {
+ while (size) {
+ size_init = min((phys_addr_t)SZ_1G, (phys_addr_t)size);
+ sdram_clear_mem(start_addr, size_init);
+ size -= size_init;
+ start_addr += size_init;
+ WATCHDOG_RESET();
+ }
+
+ bank++;
+ if (bank >= CONFIG_NR_DRAM_BANKS)
+ break;
+
+ start_addr = bd->bi_dram[bank].start;
+ size = bd->bi_dram[bank].size;
+ }
+
+ dcache_disable();
+ icache_disable();
+
+ printf("SDRAM-ECC: Initialized success with %d ms\n",
+ (unsigned int)get_timer(start));
+}
+
+void sdram_size_check(bd_t *bd)
+{
+ phys_size_t total_ram_check = 0;
+ phys_size_t ram_check = 0;
+ phys_addr_t start = 0;
+ int bank;
+
+ /* Sanity check ensure correct SDRAM size specified */
+ debug("DDR: Running SDRAM size sanity check\n");
+
+ for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
+ start = bd->bi_dram[bank].start;
+ while (ram_check < bd->bi_dram[bank].size) {
+ ram_check += get_ram_size((void *)(start + ram_check),
+ (phys_size_t)SZ_1G);
+ }
+ total_ram_check += ram_check;
+ ram_check = 0;
+ }
+
+ /* If the ram_size is 2GB smaller, we can assume the IO space is
+ * not mapped in. gd->ram_size is the actual size of the dram
+ * not the accessible size.
+ */
+ if (total_ram_check != gd->ram_size) {
+ puts("DDR: SDRAM size check failed!\n");
+ hang();
+ }
+
+ debug("DDR: SDRAM size check passed!\n");
+}
+
+/**
+ * sdram_calculate_size() - Calculate SDRAM size
+ *
+ * Calculate SDRAM device size based on SDRAM controller parameters.
+ * Size is specified in bytes.
+ */
+phys_size_t sdram_calculate_size(struct altera_sdram_platdata *plat)
+{
+ u32 dramaddrw = hmc_readl(plat, DRAMADDRW);
+
+ phys_size_t size = 1 << (DRAMADDRW_CFG_CS_ADDR_WIDTH(dramaddrw) +
+ DRAMADDRW_CFG_BANK_GRP_ADDR_WIDTH(dramaddrw) +
+ DRAMADDRW_CFG_BANK_ADDR_WIDTH(dramaddrw) +
+ DRAMADDRW_CFG_ROW_ADDR_WIDTH(dramaddrw) +
+ DRAMADDRW_CFG_COL_ADDR_WIDTH(dramaddrw));
+
+ size *= (2 << (hmc_ecc_readl(plat, DDRIOCTRL) &
+ DDR_HMC_DDRIOCTRL_IOSIZE_MSK));
+
+ return size;
+}
+
+static int altera_sdram_ofdata_to_platdata(struct udevice *dev)
+{
+ struct altera_sdram_platdata *plat = dev->platdata;
+ fdt_addr_t addr;
+
+ addr = dev_read_addr_index(dev, 0);
+ if (addr == FDT_ADDR_T_NONE)
+ return -EINVAL;
+ plat->ddr_sch = (void __iomem *)addr;
+
+ addr = dev_read_addr_index(dev, 1);
+ if (addr == FDT_ADDR_T_NONE)
+ return -EINVAL;
+ plat->iomhc = (void __iomem *)addr;
+
+ addr = dev_read_addr_index(dev, 2);
+ if (addr == FDT_ADDR_T_NONE)
+ return -EINVAL;
+ plat->hmc = (void __iomem *)addr;
+
+ return 0;
+}
+
+static int altera_sdram_probe(struct udevice *dev)
+{
+ int ret;
+ struct altera_sdram_priv *priv = dev_get_priv(dev);
+
+ ret = reset_get_bulk(dev, &priv->resets);
+ if (ret) {
+ dev_err(dev, "Can't get reset: %d\n", ret);
+ return -ENODEV;
+ }
+ reset_deassert_bulk(&priv->resets);
+
+ if (sdram_mmr_init_full(dev) != 0) {
+ puts("SDRAM init failed.\n");
+ goto failed;
+ }
+
+ return 0;
+
+failed:
+ reset_release_bulk(&priv->resets);
+ return -ENODEV;
+}
+
+static int altera_sdram_get_info(struct udevice *dev,
+ struct ram_info *info)
+{
+ struct altera_sdram_priv *priv = dev_get_priv(dev);
+
+ info->base = priv->info.base;
+ info->size = priv->info.size;
+
+ return 0;
+}
+
+static struct ram_ops altera_sdram_ops = {
+ .get_info = altera_sdram_get_info,
+};
+
+static const struct udevice_id altera_sdram_ids[] = {
+ { .compatible = "altr,sdr-ctl-s10" },
+ { .compatible = "intel,sdr-ctl-agilex" },
+ { /* sentinel */ }
+};
+
+U_BOOT_DRIVER(altera_sdram) = {
+ .name = "altr_sdr_ctl",
+ .id = UCLASS_RAM,
+ .of_match = altera_sdram_ids,
+ .ops = &altera_sdram_ops,
+ .ofdata_to_platdata = altera_sdram_ofdata_to_platdata,
+ .platdata_auto_alloc_size = sizeof(struct altera_sdram_platdata),
+ .probe = altera_sdram_probe,
+ .priv_auto_alloc_size = sizeof(struct altera_sdram_priv),
+};
diff --git a/drivers/ddr/altera/sdram_s10.h b/drivers/ddr/altera/sdram_soc64.h
similarity index 79%
copy from drivers/ddr/altera/sdram_s10.h
copy to drivers/ddr/altera/sdram_soc64.h
index 096c06cba2..7d018e76d8 100644
--- a/drivers/ddr/altera/sdram_s10.h
+++ b/drivers/ddr/altera/sdram_soc64.h
@@ -1,15 +1,24 @@
-/* SPDX-License-Identifier: GPL-2.0
- *
- * Copyright (C) 2017-2018 Intel Corporation <www.intel.com>
- *
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2017-2019 Intel Corporation <www.intel.com>
*/
-#ifndef _SDRAM_S10_H_
-#define _SDRAM_S10_H_
+#ifndef _SDRAM_SOC64_H_
+#define _SDRAM_SOC64_H_
-#define DDR_TWR 15
-#define DDR_READ_LATENCY_DELAY 40
-#define DDR_ACTIVATE_FAWBANK 0x1
+#include <common.h>
+#include <linux/sizes.h>
+
+struct altera_sdram_priv {
+ struct ram_info info;
+ struct reset_ctl_bulk resets;
+};
+
+struct altera_sdram_platdata {
+ void __iomem *hmc;
+ void __iomem *ddr_sch;
+ void __iomem *iomhc;
+};
/* ECC HMC registers */
#define DDRIOCTRL 0x8
@@ -53,32 +62,6 @@
(DDR_HMC_ERRINTEN_SERRINTEN_EN_SET_MSK | \
DDR_HMC_ERRINTEN_DERRINTEN_EN_SET_MSK)
-/* NOC DDR scheduler */
-#define DDR_SCH_ID_COREID 0
-#define DDR_SCH_ID_REVID 0x4
-#define DDR_SCH_DDRCONF 0x8
-#define DDR_SCH_DDRTIMING 0xc
-#define DDR_SCH_DDRMODE 0x10
-#define DDR_SCH_READ_LATENCY 0x14
-#define DDR_SCH_ACTIVATE 0x38
-#define DDR_SCH_DEVTODEV 0x3c
-#define DDR_SCH_DDR4TIMING 0x40
-
-#define DDR_SCH_DDRTIMING_ACTTOACT_OFF 0
-#define DDR_SCH_DDRTIMING_RDTOMISS_OFF 6
-#define DDR_SCH_DDRTIMING_WRTOMISS_OFF 12
-#define DDR_SCH_DDRTIMING_BURSTLEN_OFF 18
-#define DDR_SCH_DDRTIMING_RDTOWR_OFF 21
-#define DDR_SCH_DDRTIMING_WRTORD_OFF 26
-#define DDR_SCH_DDRTIMING_BWRATIO_OFF 31
-#define DDR_SCH_DDRMOD_BWRATIOEXTENDED_OFF 1
-#define DDR_SCH_ACTIVATE_RRD_OFF 0
-#define DDR_SCH_ACTIVATE_FAW_OFF 4
-#define DDR_SCH_ACTIVATE_FAWBANK_OFF 10
-#define DDR_SCH_DEVTODEV_BUSRDTORD_OFF 0
-#define DDR_SCH_DEVTODEV_BUSRDTOWR_OFF 2
-#define DDR_SCH_DEVTODEV_BUSWRTORD_OFF 4
-
/* HMC MMR IO48 registers */
#define CTRLCFG0 0x28
#define CTRLCFG1 0x2c
@@ -185,4 +168,19 @@
#define FW_HMC_ADAPTOR_REG_ADDR 0xf8020004
#define FW_HMC_ADAPTOR_MPU_MASK BIT(0)
-#endif /* _SDRAM_S10_H_ */
+u32 hmc_readl(struct altera_sdram_platdata *plat, u32 reg);
+u32 hmc_ecc_readl(struct altera_sdram_platdata *plat, u32 reg);
+u32 hmc_ecc_writel(struct altera_sdram_platdata *plat,
+ u32 data, u32 reg);
+u32 ddr_sch_writel(struct altera_sdram_platdata *plat, u32 data,
+ u32 reg);
+int emif_clear(struct altera_sdram_platdata *plat);
+int emif_reset(struct altera_sdram_platdata *plat);
+int poll_hmc_clock_status(void);
+void sdram_clear_mem(phys_addr_t addr, phys_size_t size);
+void sdram_init_ecc_bits(bd_t *bd);
+void sdram_size_check(bd_t *bd);
+phys_size_t sdram_calculate_size(struct altera_sdram_platdata *plat);
+int sdram_mmr_init_full(struct udevice *dev);
+
+#endif /* _SDRAM_SOC64_H_ */
--
2.19.0
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