ARM: UniPhier: add UniPhier SoC support code

These are used by Panasonic UniPhier SoC family.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>

1 files changed, 162 insertions, 0 deletions

diff --git a/arch/arm/cpu/armv7/uniphier/ph1-ld4/umc_init.c b/arch/arm/cpu/armv7/uniphier/ph1-ld4/umc_init.c
new file mode 100644
index 00000000000..1344ac1caab
--- /dev/null
+++ b/arch/arm/cpu/armv7/uniphier/ph1-ld4/umc_init.c
@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2011-2014 Panasonic Corporation
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/umc-regs.h>
+
+static inline 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);
+}
+
+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 inline 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);
+
+	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);
+
+	writel(0x00000101, dramcont1 + UMC_DIOCTLA);
+
+	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 umc_init(void)
+{
+	return umc_init_sub(CONFIG_DDR_FREQ, CONFIG_SDRAM0_SIZE / 0x08000000,
+					CONFIG_SDRAM1_SIZE / 0x08000000);
+}
+
+#if CONFIG_DDR_FREQ != 1333 && CONFIG_DDR_FREQ != 1600
+#error Unsupported DDR Frequency.
+#endif
+
+#if (CONFIG_SDRAM0_SIZE == 0x08000000 || CONFIG_SDRAM0_SIZE == 0x10000000) && \
+    (CONFIG_SDRAM1_SIZE == 0x08000000 || CONFIG_SDRAM1_SIZE == 0x10000000) && \
+    CONFIG_DDR_NUM_CH0 == 1 && CONFIG_DDR_NUM_CH1 == 1
+/* OK */
+#else
+#error Unsupported DDR configuration.
+#endif