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authorMasahiro Yamada <yamada.masahiro@socionext.com>2015-09-22 00:27:39 +0900
committerMasahiro Yamada <yamada.masahiro@socionext.com>2015-09-25 00:58:38 +0900
commit323d1f9d5bebfe55e97e23c8094055685665afef (patch)
tree4fe6b5ffd3aab68a945de9750d145514271d2321 /arch/arm/mach-uniphier/ph1-sld8/ddrphy_init.c
parent5451b777de392043c03626f6cbbc3940c49c3417 (diff)
ARM: uniphier: allow to enable multiple SoCs
Before this commit, the Kconfig menu in mach-uniphier only allowed us to choose one SoC to be compiled. Each SoC has its own defconfig file for the build-test coverage. Consequently, some defconfig files are duplicated with only the difference in CONFIG_DEFAULT_DEVICE_TREE and CONFIG_{SOC_NAME}=y. Now, most of board-specific parameters have been moved to device trees, so it makes sense to include init code of multiple SoCs into a single image as long as the SoCs have similar architecture. In fact, some SoCs of UniPhier family are very similar: - PH1-LD4 and PH1-sLD8 - PH1-LD6b and ProXstream2 (will be added in the upcoming commit) This commit will be helpful to merge some defconfig files for better maintainability. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'arch/arm/mach-uniphier/ph1-sld8/ddrphy_init.c')
-rw-r--r--arch/arm/mach-uniphier/ph1-sld8/ddrphy_init.c75
1 files changed, 0 insertions, 75 deletions
diff --git a/arch/arm/mach-uniphier/ph1-sld8/ddrphy_init.c b/arch/arm/mach-uniphier/ph1-sld8/ddrphy_init.c
deleted file mode 100644
index 21efe62da6..0000000000
--- a/arch/arm/mach-uniphier/ph1-sld8/ddrphy_init.c
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * Copyright (C) 2014-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <config.h>
-#include <linux/types.h>
-#include <linux/io.h>
-#include <mach/ddrphy-regs.h>
-
-void ddrphy_init(struct ddrphy __iomem *phy, int freq, int size)
-{
- u32 tmp;
-
- writel(0x0300c473, &phy->pgcr[1]);
- if (freq == 1333) {
- writel(0x0a806844, &phy->ptr[0]);
- writel(0x208e0124, &phy->ptr[1]);
- } else {
- writel(0x0c807d04, &phy->ptr[0]);
- writel(0x2710015E, &phy->ptr[1]);
- }
- writel(0x00083DEF, &phy->ptr[2]);
- if (freq == 1333) {
- writel(0x0f051616, &phy->ptr[3]);
- writel(0x06ae08d6, &phy->ptr[4]);
- } else {
- writel(0x12061A80, &phy->ptr[3]);
- writel(0x08027100, &phy->ptr[4]);
- }
- writel(0xF004001A, &phy->dsgcr);
-
- /* change the value of the on-die pull-up/pull-down registors */
- tmp = readl(&phy->dxccr);
- tmp &= ~0x0ee0;
- tmp |= DXCCR_DQSNRES_688_OHM | DXCCR_DQSRES_688_OHM;
- writel(tmp, &phy->dxccr);
-
- writel(0x0000040B, &phy->dcr);
- if (freq == 1333) {
- writel(0x85589955, &phy->dtpr[0]);
- if (size == 1)
- writel(0x1a8363c0, &phy->dtpr[1]);
- else
- writel(0x1a8363c0, &phy->dtpr[1]);
- writel(0x5002c200, &phy->dtpr[2]);
- writel(0x00000b51, &phy->mr0);
- } else {
- writel(0x999cbb66, &phy->dtpr[0]);
- if (size == 1)
- writel(0x1a878400, &phy->dtpr[1]);
- else
- writel(0x1a878400, &phy->dtpr[1]);
- writel(0xa00214f8, &phy->dtpr[2]);
- writel(0x00000d71, &phy->mr0);
- }
- writel(0x00000006, &phy->mr1);
- if (freq == 1333)
- writel(0x00000290, &phy->mr2);
- else
- writel(0x00000298, &phy->mr2);
-
-#ifdef CONFIG_DDR_STANDARD
- writel(0x00000000, &phy->mr3);
-#else
- writel(0x00000800, &phy->mr3);
-#endif
-
- while (!(readl(&phy->pgsr[0]) & PGSR0_IDONE))
- ;
-
- writel(0x0300C473, &phy->pgcr[1]);
- writel(0x0000005D, &phy->zq[0].cr[1]);
-}