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authorDavid Hendricks <dhendrix@chromium.org>2013-08-29 13:12:56 -0700
committerIsaac Christensen <isaac.christensen@se-eng.com>2014-08-12 22:20:23 +0200
commit5a0fdb4565dc6baf89155268dd0f52e6885197d8 (patch)
tree9e29218f8c95cf5321f39067c798ae405532a973 /src/cpu/samsung/exynos5420
parent122b6d6ce694cd55087b4956780b2bbde8ccc6fe (diff)
exynos5420: minor clean-up memory related stuff
This cleans up a few minor things (mostly #defines) of the memory code for exynos5420, pit, and kirby. Specifically: - CONCONTROL.empty is read-only, so don't try to set it and also get rid of the unneeded DMC_CONCONTROL_EMPTY_ENABLE #define. - MEMBASECONFIG* overlaps members of the mem_timings struct and are mainboard-dependent anyway, so get rid of 'em. - DMC_MEMCONTROL_TP_DISABLE corresponds to a reserved bit. It may have been deprecated. - Same with TIMING* #defines. - Clarify DDR_MODE_* usage and use mem->mem_type when appropriate. Signed-off-by: David Hendricks <dhendrix@chromium.org> Change-Id: Ideb21efcc97b24f7e115e90051c20daef4480f17 Reviewed-on: https://chromium-review.googlesource.com/167500 Commit-Queue: David Hendricks <dhendrix@chromium.org> Tested-by: David Hendricks <dhendrix@chromium.org> Reviewed-by: ron minnich <rminnich@chromium.org> (cherry picked from commit 650dba32cb217414c422907398f68e784e5720e8) Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6614 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
Diffstat (limited to 'src/cpu/samsung/exynos5420')
-rw-r--r--src/cpu/samsung/exynos5420/dmc.h9
-rw-r--r--src/cpu/samsung/exynos5420/dmc_init_ddr3.c8
-rw-r--r--src/cpu/samsung/exynos5420/setup.h24
3 files changed, 12 insertions, 29 deletions
diff --git a/src/cpu/samsung/exynos5420/dmc.h b/src/cpu/samsung/exynos5420/dmc.h
index 89fac429b7..1a6adca6f9 100644
--- a/src/cpu/samsung/exynos5420/dmc.h
+++ b/src/cpu/samsung/exynos5420/dmc.h
@@ -259,10 +259,11 @@ struct exynos5_tzasc {
} __attribute__((packed));
enum ddr_mode {
- DDR_MODE_DDR2,
- DDR_MODE_DDR3,
- DDR_MODE_LPDDR2,
- DDR_MODE_LPDDR3,
+ /* This is in order of ctrl_ddr_mode values. Do not change. */
+ DDR_MODE_DDR2 = 0x0,
+ DDR_MODE_DDR3 = 0x1,
+ DDR_MODE_LPDDR2 = 0x2,
+ DDR_MODE_LPDDR3 = 0x3,
DDR_MODE_COUNT,
};
diff --git a/src/cpu/samsung/exynos5420/dmc_init_ddr3.c b/src/cpu/samsung/exynos5420/dmc_init_ddr3.c
index 1d7b8a8adb..2dc03b3add 100644
--- a/src/cpu/samsung/exynos5420/dmc_init_ddr3.c
+++ b/src/cpu/samsung/exynos5420/dmc_init_ddr3.c
@@ -70,12 +70,12 @@ int ddr3_mem_ctrl_init(struct mem_timings *mem, int interleave_size, int reset)
/* Specify the DDR memory type as DDR3 */
val = readl(&phy0_ctrl->phy_con0);
val &= ~(PHY_CON0_CTRL_DDR_MODE_MASK << PHY_CON0_CTRL_DDR_MODE_SHIFT);
- val |= (DDR_MODE_DDR3 << PHY_CON0_CTRL_DDR_MODE_SHIFT);
+ val |= (mem->mem_type << PHY_CON0_CTRL_DDR_MODE_SHIFT);
writel(val, &phy0_ctrl->phy_con0);
val = readl(&phy1_ctrl->phy_con0);
val &= ~(PHY_CON0_CTRL_DDR_MODE_MASK << PHY_CON0_CTRL_DDR_MODE_SHIFT);
- val |= (DDR_MODE_DDR3 << PHY_CON0_CTRL_DDR_MODE_SHIFT);
+ val |= (mem->mem_type << PHY_CON0_CTRL_DDR_MODE_SHIFT);
writel(val, &phy1_ctrl->phy_con0);
/* Set Read Latency and Burst Length for PHY0 and PHY1 */
@@ -142,8 +142,8 @@ int ddr3_mem_ctrl_init(struct mem_timings *mem, int interleave_size, int reset)
clrbits_le32(&drex0->concontrol, DFI_INIT_START);
clrbits_le32(&drex1->concontrol, DFI_INIT_START);
- update_reset_dll(drex0, DDR_MODE_DDR3);
- update_reset_dll(drex1, DDR_MODE_DDR3);
+ update_reset_dll(drex0, mem->mem_type);
+ update_reset_dll(drex1, mem->mem_type);
/* MEMBASECONFIG0 (CS0) */
writel(mem->membaseconfig0, &tzasc0->membaseconfig0);
diff --git a/src/cpu/samsung/exynos5420/setup.h b/src/cpu/samsung/exynos5420/setup.h
index 950c2c6f85..63e40a8f0f 100644
--- a/src/cpu/samsung/exynos5420/setup.h
+++ b/src/cpu/samsung/exynos5420/setup.h
@@ -106,7 +106,6 @@ struct exynos5_phy_control;
#define DMC_MEMCONTROL_CLK_STOP_DISABLE (0 << 0)
#define DMC_MEMCONTROL_DPWRDN_DISABLE (0 << 1)
#define DMC_MEMCONTROL_DPWRDN_ACTIVE_PRECHARGE (0 << 2)
-#define DMC_MEMCONTROL_TP_DISABLE (0 << 4)
#define DMC_MEMCONTROL_DSREF_DISABLE (0 << 5)
#define DMC_MEMCONTROL_DSREF_ENABLE (1 << 5)
#define DMC_MEMCONTROL_ADD_LAT_PALL_CYCLE(x) (x << 6)
@@ -139,13 +138,6 @@ struct exynos5_phy_control;
#define DMC_MEMCONFIGx_CHIP_ROW_16 (4 << 4)
#define DMC_MEMCONFIGx_CHIP_BANK_8 (3 << 0)
-#define DMC_MEMBASECONFIGx_CHIP_BASE(x) (x << 16)
-#define DMC_MEMBASECONFIGx_CHIP_MASK(x) (x << 0)
-#define DMC_MEMBASECONFIG_VAL(x) ( \
- DMC_MEMBASECONFIGx_CHIP_BASE(x) | \
- DMC_MEMBASECONFIGx_CHIP_MASK(0x780) \
-)
-
#define DMC_MEMBASECONFIG0_VAL DMC_MEMBASECONFIG_VAL(0x40)
#define DMC_MEMBASECONFIG1_VAL DMC_MEMBASECONFIG_VAL(0x80)
@@ -170,8 +162,6 @@ struct exynos5_phy_control;
/* COJCONTROL register bit fields */
#define DMC_CONCONTROL_IO_PD_CON_DISABLE (0 << 3)
#define DMC_CONCONTROL_AREF_EN_DISABLE (0 << 5)
-#define DMC_CONCONTROL_EMPTY_DISABLE (0 << 8)
-#define DMC_CONCONTROL_EMPTY_ENABLE (1 << 8)
#define DMC_CONCONTROL_RD_FETCH_DISABLE (0x0 << 12)
#define DMC_CONCONTROL_TIMEOUT_LEVEL0 (0xFFF << 16)
#define DMC_CONCONTROL_DFI_INIT_START_DISABLE (0 << 28)
@@ -634,6 +624,8 @@ struct exynos5_phy_control;
#define LPDDR3PHY_CTRL_PHY_RESET (1 << 0)
#define LPDDR3PHY_CTRL_PHY_RESET_OFF (0 << 0)
+/* FIXME(dhendrix): misleading name. The reset value is 0x17021a40, bits 12:11
++ default to 0x3 which indicates LPDDR3. We want DDR3, so we use 0x1. */
#define PHY_CON0_RESET_VAL 0x17020a40
#define P0_CMD_EN (1 << 14)
#define BYTE_RDLVL_EN (1 << 13)
@@ -743,7 +735,7 @@ struct exynos5_phy_control;
#define CMD_DEFAULT_LPDDR3 0xF
#define CMD_DEFUALT_OFFSET 0
#define T_WRDATA_EN 0x7
-#define T_WRDATA_EN_DDR3 0x8
+#define T_WRDATA_EN_DDR3 0x8 /* FIXME(dhendrix): 6 for DDR3? see T_wrdata_en */
#define T_WRDATA_EN_OFFSET 16
#define T_WRDATA_EN_MASK 0x1f
@@ -775,20 +767,10 @@ struct exynos5_phy_control;
#define DMC_CHIP_MASK_2GB 0x780
#define DMC_CHIP_MASK_4GB 0x700
-#define MEMBASECONFIG_CHIP_MASK_VAL 0x7E0
-#define MEMBASECONFIG_CHIP_MASK_OFFSET 0
-#define MEMBASECONFIG0_CHIP_BASE_VAL 0x20
-#define MEMBASECONFIG1_CHIP_BASE_VAL 0x40
-#define CHIP_BASE_OFFSET 16
-
#define MEMCONFIG_VAL 0x1323
#define PRECHCONFIG_DEFAULT_VAL 0xFF000000
#define PWRDNCONFIG_DEFAULT_VAL 0xFFFF00FF
-#define TIMINGAREF_VAL 0x5d
-#define TIMINGROW_VAL 0x345A8692
-#define TIMINGDATA_VAL 0x3630065C
-#define TIMINGPOWER_VAL 0x50380336
#define DFI_INIT_COMPLETE (1 << 3)
#define BRBRSVCONTROL_VAL 0x00000033