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>
diff --git a/arch/arm/mach-uniphier/umc/umc-ph1-ld4.c b/arch/arm/mach-uniphier/umc/umc-ph1-ld4.c
new file mode 100644
index 0000000..8124685
--- /dev/null
+++ b/arch/arm/mach-uniphier/umc/umc-ph1-ld4.c
@@ -0,0 +1,175 @@
+/*
+ * Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/sizes.h>
+#include <mach/init.h>
+#include <mach/umc-regs.h>
+#include <mach/ddrphy-regs.h>
+
+static void umc_start_ssif(void __iomem *ssif_base)
+{
+ writel(0x00000000, ssif_base + 0x0000b004);
+ writel(0xffffffff, ssif_base + 0x0000c004);
+ writel(0x000fffcf, ssif_base + 0x0000c008);
+ writel(0x00000001, ssif_base + 0x0000b000);
+ writel(0x00000001, ssif_base + 0x0000c000);
+ writel(0x03010101, ssif_base + UMC_MDMCHSEL);
+ writel(0x03010100, ssif_base + UMC_DMDCHSEL);
+
+ writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_FETCH);
+ writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_COMQUE0);
+ writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_COMWC0);
+ writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_COMRC0);
+ writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_COMQUE1);
+ writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_COMWC1);
+ writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_COMRC1);
+ writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_WC);
+ writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_RC);
+ writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_DST);
+
+ writel(0x00000001, ssif_base + UMC_CPURST);
+ writel(0x00000001, ssif_base + UMC_IDSRST);
+ writel(0x00000001, ssif_base + UMC_IXMRST);
+ writel(0x00000001, ssif_base + UMC_MDMRST);
+ writel(0x00000001, ssif_base + UMC_MDDRST);
+ writel(0x00000001, ssif_base + UMC_SIORST);
+ writel(0x00000001, ssif_base + UMC_VIORST);
+ writel(0x00000001, ssif_base + UMC_FRCRST);
+ writel(0x00000001, ssif_base + UMC_RGLRST);
+ writel(0x00000001, ssif_base + UMC_AIORST);
+ writel(0x00000001, ssif_base + UMC_DMDRST);
+}
+
+static void umc_dramcont_init(void __iomem *dramcont, void __iomem *ca_base,
+ int size, int freq)
+{
+ if (freq == 1333) {
+ writel(0x45990b11, dramcont + UMC_CMDCTLA);
+ writel(0x16958924, dramcont + UMC_CMDCTLB);
+ writel(0x5101046A, dramcont + UMC_INITCTLA);
+
+ if (size == 1)
+ writel(0x27028B0A, dramcont + UMC_INITCTLB);
+ else if (size == 2)
+ writel(0x38028B0A, dramcont + UMC_INITCTLB);
+
+ writel(0x000FF0FF, dramcont + UMC_INITCTLC);
+ writel(0x00000b51, dramcont + UMC_DRMMR0);
+ } else if (freq == 1600) {
+ writel(0x36BB0F17, dramcont + UMC_CMDCTLA);
+ writel(0x18C6AA24, dramcont + UMC_CMDCTLB);
+ writel(0x5101387F, dramcont + UMC_INITCTLA);
+
+ if (size == 1)
+ writel(0x2F030D3F, dramcont + UMC_INITCTLB);
+ else if (size == 2)
+ writel(0x43030D3F, dramcont + UMC_INITCTLB);
+
+ writel(0x00FF00FF, dramcont + UMC_INITCTLC);
+ writel(0x00000d71, dramcont + UMC_DRMMR0);
+ }
+
+ writel(0x00000006, dramcont + UMC_DRMMR1);
+
+ if (freq == 1333)
+ writel(0x00000290, dramcont + UMC_DRMMR2);
+ else if (freq == 1600)
+ writel(0x00000298, dramcont + UMC_DRMMR2);
+
+ writel(0x00000800, dramcont + UMC_DRMMR3);
+
+ if (freq == 1333) {
+ if (size == 1)
+ writel(0x00240512, dramcont + UMC_SPCCTLA);
+ else if (size == 2)
+ writel(0x00350512, dramcont + UMC_SPCCTLA);
+
+ writel(0x00ff0006, dramcont + UMC_SPCCTLB);
+ writel(0x000a00ac, dramcont + UMC_RDATACTL_D0);
+ } else if (freq == 1600) {
+ if (size == 1)
+ writel(0x002B0617, dramcont + UMC_SPCCTLA);
+ else if (size == 2)
+ writel(0x003F0617, dramcont + UMC_SPCCTLA);
+
+ writel(0x00ff0008, dramcont + UMC_SPCCTLB);
+ writel(0x000c00ae, dramcont + UMC_RDATACTL_D0);
+ }
+
+ writel(0x04060806, dramcont + UMC_WDATACTL_D0);
+ writel(0x04a02000, dramcont + UMC_DATASET);
+ writel(0x00000000, ca_base + 0x2300);
+ writel(0x00400020, dramcont + UMC_DCCGCTL);
+ writel(0x00000003, dramcont + 0x7000);
+ writel(0x0000000f, dramcont + 0x8000);
+ writel(0x000000c3, dramcont + 0x8004);
+ writel(0x00000071, dramcont + 0x8008);
+ writel(0x0000003b, dramcont + UMC_DICGCTLA);
+ writel(0x020a0808, dramcont + UMC_DICGCTLB);
+ writel(0x00000004, dramcont + UMC_FLOWCTLG);
+ writel(0x80000201, ca_base + 0xc20);
+ writel(0x0801e01e, dramcont + UMC_FLOWCTLA);
+ writel(0x00200000, dramcont + UMC_FLOWCTLB);
+ writel(0x00004444, dramcont + UMC_FLOWCTLC);
+ writel(0x200a0a00, dramcont + UMC_SPCSETB);
+ writel(0x00000000, dramcont + UMC_SPCSETD);
+ writel(0x00000520, dramcont + UMC_DFICUPDCTLA);
+}
+
+static int umc_init_sub(int freq, int size_ch0, int size_ch1)
+{
+ void __iomem *ssif_base = (void __iomem *)UMC_SSIF_BASE;
+ void __iomem *ca_base0 = (void __iomem *)UMC_CA_BASE(0);
+ void __iomem *ca_base1 = (void __iomem *)UMC_CA_BASE(1);
+ void __iomem *dramcont0 = (void __iomem *)UMC_DRAMCONT_BASE(0);
+ void __iomem *dramcont1 = (void __iomem *)UMC_DRAMCONT_BASE(1);
+ void __iomem *phy0_0 = (void __iomem *)DDRPHY_BASE(0, 0);
+ void __iomem *phy1_0 = (void __iomem *)DDRPHY_BASE(1, 0);
+
+ umc_dram_init_start(dramcont0);
+ umc_dram_init_start(dramcont1);
+ umc_dram_init_poll(dramcont0);
+ umc_dram_init_poll(dramcont1);
+
+ writel(0x00000101, dramcont0 + UMC_DIOCTLA);
+
+ ph1_ld4_ddrphy_init(phy0_0, freq, size_ch0);
+
+ ddrphy_prepare_training(phy0_0, 0);
+ ddrphy_training(phy0_0);
+
+ writel(0x00000101, dramcont1 + UMC_DIOCTLA);
+
+ ph1_ld4_ddrphy_init(phy1_0, freq, size_ch1);
+
+ ddrphy_prepare_training(phy1_0, 1);
+ ddrphy_training(phy1_0);
+
+ umc_dramcont_init(dramcont0, ca_base0, size_ch0, freq);
+ umc_dramcont_init(dramcont1, ca_base1, size_ch1, freq);
+
+ umc_start_ssif(ssif_base);
+
+ return 0;
+}
+
+int ph1_ld4_umc_init(const struct uniphier_board_data *bd)
+{
+ if ((bd->dram_ch0_size == SZ_128M || bd->dram_ch0_size == SZ_256M) &&
+ (bd->dram_ch1_size == SZ_128M || bd->dram_ch1_size == SZ_256M) &&
+ (bd->dram_freq == 1333 || bd->dram_freq == 1600) &&
+ bd->dram_ch0_width == 16 && bd->dram_ch1_width == 16) {
+ return umc_init_sub(bd->dram_freq,
+ bd->dram_ch0_size / SZ_128M,
+ bd->dram_ch1_size / SZ_128M);
+ } else {
+ pr_err("Unsupported DDR configuration\n");
+ return -EINVAL;
+ }
+}