diff --git a/arch/arm/include/asm/arch-sunxi/cpu.h b/arch/arm/include/asm/arch-sunxi/cpu.h
index e8e670e7e9037f41c6d513502b1b5c29e81b8a3b..caec86526417c56a4c8776bd64899ceb99117c24 100644
--- a/arch/arm/include/asm/arch-sunxi/cpu.h
+++ b/arch/arm/include/asm/arch-sunxi/cpu.h
@@ -16,5 +16,6 @@
#define SOCID_A64 0x1689
#define SOCID_H3 0x1680
#define SOCID_H5 0x1718
+#define SOCID_R40 0x1701
#endif /* _SUNXI_CPU_H */
diff --git a/arch/arm/include/asm/arch-sunxi/dram.h b/arch/arm/include/asm/arch-sunxi/dram.h
index 1dc82205b7dfd60642d6b795035f644770e7820e..f452f889f928624cfe99a2e101ec4ba29d7bfbbf 100644
--- a/arch/arm/include/asm/arch-sunxi/dram.h
+++ b/arch/arm/include/asm/arch-sunxi/dram.h
@@ -24,7 +24,9 @@
#include <asm/arch/dram_sun8i_a33.h>
#elif defined(CONFIG_MACH_SUN8I_A83T)
#include <asm/arch/dram_sun8i_a83t.h>
-#elif defined(CONFIG_MACH_SUNXI_H3_H5) || defined(CONFIG_MACH_SUN50I)
+#elif defined(CONFIG_MACH_SUNXI_H3_H5) || \
+ defined(CONFIG_MACH_SUN8I_R40) || \
+ defined(CONFIG_MACH_SUN50I)
#include <asm/arch/dram_sun8i_h3.h>
#elif defined(CONFIG_MACH_SUN9I)
#include <asm/arch/dram_sun9i.h>
diff --git a/arch/arm/include/asm/arch-sunxi/dram_sun8i_h3.h b/arch/arm/include/asm/arch-sunxi/dram_sun8i_h3.h
index 25d07d9863c92b103b6b7a6dd6ce75810de888d6..2770986b613f94e60ebbb8408614420a5f899f9e 100644
--- a/arch/arm/include/asm/arch-sunxi/dram_sun8i_h3.h
+++ b/arch/arm/include/asm/arch-sunxi/dram_sun8i_h3.h
@@ -15,7 +15,8 @@
struct sunxi_mctl_com_reg {
u32 cr; /* 0x00 control register */
- u8 res0[0x8]; /* 0x04 */
+ u32 cr_r1; /* 0x04 rank 1 control register (R40 only) */
+ u8 res0[0x4]; /* 0x08 */
u32 tmr; /* 0x0c (unused on H3) */
u32 mcr[16][2]; /* 0x10 */
u32 bwcr; /* 0x90 bandwidth control register */
@@ -63,6 +64,17 @@ struct sunxi_mctl_com_reg {
#define MCTL_CR_DUAL_RANK (0x1 << 0)
#define MCTL_CR_SINGLE_RANK (0x0 << 0)
+/*
+ * CR_R1 is a register found in the R40's DRAM controller. It sets various
+ * parameters for rank 1. Bits [11:0] have the same meaning as the bits in
+ * MCTL_CR, but they apply to rank 1 only. This implies we can have
+ * different chips for rank 1 than rank 0.
+ *
+ * As address line A15 and CS1 chip select for rank 1 are muxed on the same
+ * pin, if single rank is used, A15 must be muxed in.
+ */
+#define MCTL_CR_R1_MUX_A15 (0x1 << 21)
+
#define PROTECT_MAGIC (0x94be6fa3)
struct sunxi_mctl_ctl_reg {
@@ -72,7 +84,8 @@ struct sunxi_mctl_ctl_reg {
u32 clken; /* 0x0c */
u32 pgsr[2]; /* 0x10 PHY general status registers */
u32 statr; /* 0x18 */
- u8 res1[0x14]; /* 0x1c */
+ u8 res1[0x10]; /* 0x1c */
+ u32 lp3mr11; /* 0x2c */
u32 mr[4]; /* 0x30 mode registers */
u32 pllgcr; /* 0x40 */
u32 ptr[5]; /* 0x44 PHY timing registers */
@@ -120,7 +133,8 @@ struct sunxi_mctl_ctl_reg {
struct { /* 0x300 DATX8 modules*/
u32 mdlr; /* 0x00 master delay line register */
u32 lcdlr[3]; /* 0x04 local calibrated delay line registers */
- u32 bdlr[12]; /* 0x10 bit delay line registers */
+ u32 bdlr[11]; /* 0x10 bit delay line registers */
+ u32 sdlr; /* 0x3c output enable bit delay registers */
u32 gtr; /* 0x40 general timing register */
u32 gcr; /* 0x44 general configuration register */
u32 gsr[3]; /* 0x48 general status registers */
diff --git a/arch/arm/mach-sunxi/Makefile b/arch/arm/mach-sunxi/Makefile
index efab4811ee54fc07894192f5a22128a69ca91c5b..5510aa54353f5653ed803a2d6cf00f9099ec59dd 100644
--- a/arch/arm/mach-sunxi/Makefile
+++ b/arch/arm/mach-sunxi/Makefile
@@ -49,6 +49,7 @@ obj-$(CONFIG_MACH_SUN8I_A23) += dram_sun8i_a23.o
obj-$(CONFIG_MACH_SUN8I_A33) += dram_sun8i_a33.o
obj-$(CONFIG_MACH_SUN8I_A83T) += dram_sun8i_a83t.o
obj-$(CONFIG_MACH_SUNXI_H3_H5) += dram_sun8i_h3.o
+obj-$(CONFIG_MACH_SUN8I_R40) += dram_sun8i_h3.o
obj-$(CONFIG_MACH_SUN9I) += dram_sun9i.o
obj-$(CONFIG_MACH_SUN50I) += dram_sun8i_h3.o
endif
diff --git a/arch/arm/mach-sunxi/clock_sun6i.c b/arch/arm/mach-sunxi/clock_sun6i.c
index 3c8c53fcf76bdc170ad06f5757440403dd98ef64..9068c88ab2f8548877258969f5055c8162764562 100644
--- a/arch/arm/mach-sunxi/clock_sun6i.c
+++ b/arch/arm/mach-sunxi/clock_sun6i.c
@@ -222,7 +222,9 @@ done:
}
#endif
-#if defined(CONFIG_MACH_SUN8I_A33) || defined(CONFIG_MACH_SUN50I)
+#if defined(CONFIG_MACH_SUN8I_A33) || \
+ defined(CONFIG_MACH_SUN8I_R40) || \
+ defined(CONFIG_MACH_SUN50I)
void clock_set_pll11(unsigned int clk, bool sigma_delta_enable)
{
struct sunxi_ccm_reg * const ccm =
diff --git a/arch/arm/mach-sunxi/dram_sun8i_h3.c b/arch/arm/mach-sunxi/dram_sun8i_h3.c
index d681a9df8be2ed274a8f86670717377a14d68f03..2d12661a14d3677f45acfeb63e0146172595d61b 100644
--- a/arch/arm/mach-sunxi/dram_sun8i_h3.c
+++ b/arch/arm/mach-sunxi/dram_sun8i_h3.c
@@ -70,6 +70,12 @@ static void mctl_set_bit_delays(struct dram_para *para)
writel(ACBDLR_WRITE_DELAY(para->ac_delays[i]),
&mctl_ctl->acbdlr[i]);
+#ifdef CONFIG_MACH_SUN8I_R40
+ /* DQSn, DMn, DQn output enable bit delay */
+ for (i = 0; i < 4; i++)
+ writel(0x6 << 24, &mctl_ctl->dx[i].sdlr);
+#endif
+
setbits_le32(&mctl_ctl->pgcr[0], 1 << 26);
}
@@ -86,6 +92,9 @@ enum {
MBUS_PORT_DI = 9,
MBUS_PORT_DE = 10,
MBUS_PORT_DE_CFD = 11,
+ MBUS_PORT_UNKNOWN1 = 12,
+ MBUS_PORT_UNKNOWN2 = 13,
+ MBUS_PORT_UNKNOWN3 = 14,
};
enum {
@@ -205,6 +214,42 @@ static void mctl_set_master_priority_h5(void)
MBUS_CONF(DE_CFD, true, HIGHEST, 0, 600, 400, 200);
}
+static void mctl_set_master_priority_r40(void)
+{
+ struct sunxi_mctl_com_reg * const mctl_com =
+ (struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE;
+
+ /* enable bandwidth limit windows and set windows size 1us */
+ writel(399, &mctl_com->tmr);
+ writel((1 << 16), &mctl_com->bwcr);
+
+ /* set cpu high priority */
+ writel(0x00000001, &mctl_com->mapr);
+
+ /* Port 2 is reserved per Allwinner's linux-3.10 source, yet
+ * they initialise it */
+ MBUS_CONF( CPU, true, HIGHEST, 0, 300, 260, 150);
+ MBUS_CONF( GPU, true, HIGHEST, 0, 600, 400, 200);
+ MBUS_CONF( UNUSED, true, HIGHEST, 0, 512, 256, 96);
+ MBUS_CONF( DMA, true, HIGHEST, 0, 256, 128, 32);
+ MBUS_CONF( VE, true, HIGHEST, 0, 1900, 1500, 1000);
+ MBUS_CONF( CSI, true, HIGHEST, 0, 150, 120, 100);
+ MBUS_CONF( NAND, true, HIGH, 0, 256, 128, 64);
+ MBUS_CONF( SS, true, HIGHEST, 0, 256, 128, 64);
+ MBUS_CONF( TS, true, HIGHEST, 0, 256, 128, 64);
+ MBUS_CONF( DI, true, HIGH, 0, 1024, 256, 64);
+
+ /*
+ * The port names are probably wrong, but no correct sources
+ * are available.
+ */
+ MBUS_CONF( DE, true, HIGH, 0, 128, 48, 0);
+ MBUS_CONF( DE_CFD, true, HIGH, 0, 384, 256, 0);
+ MBUS_CONF(UNKNOWN1, true, HIGHEST, 0, 512, 384, 256);
+ MBUS_CONF(UNKNOWN2, true, HIGHEST, 2, 8192, 6144, 1024);
+ MBUS_CONF(UNKNOWN3, true, HIGH, 0, 1280, 144, 64);
+}
+
static void mctl_set_master_priority(uint16_t socid)
{
switch (socid) {
@@ -217,6 +262,9 @@ static void mctl_set_master_priority(uint16_t socid)
case SOCID_H5:
mctl_set_master_priority_h5();
return;
+ case SOCID_R40:
+ mctl_set_master_priority_r40();
+ return;
}
}
@@ -268,6 +316,9 @@ static void mctl_set_timing_params(uint16_t socid, struct dram_para *para)
writel(0x18, &mctl_ctl->mr[2]); /* CWL=8 */
writel(0x0, &mctl_ctl->mr[3]);
+ if (socid == SOCID_R40)
+ writel(0x3, &mctl_ctl->lp3mr11); /* odt_en[7:4] */
+
/* set DRAM timing */
writel(DRAMTMG0_TWTP(twtp) | DRAMTMG0_TFAW(tfaw) |
DRAMTMG0_TRAS_MAX(trasmax) | DRAMTMG0_TRAS(tras),
@@ -383,7 +434,7 @@ static void mctl_h3_zq_calibration_quirk(struct dram_para *para)
}
}
-static void mctl_set_cr(struct dram_para *para)
+static void mctl_set_cr(uint16_t socid, struct dram_para *para)
{
struct sunxi_mctl_com_reg * const mctl_com =
(struct sunxi_mctl_com_reg *)SUNXI_DRAM_COM_BASE;
@@ -393,6 +444,14 @@ static void mctl_set_cr(struct dram_para *para)
(para->dual_rank ? MCTL_CR_DUAL_RANK : MCTL_CR_SINGLE_RANK) |
MCTL_CR_PAGE_SIZE(para->page_size) |
MCTL_CR_ROW_BITS(para->row_bits), &mctl_com->cr);
+
+ if (socid == SOCID_R40) {
+ if (para->dual_rank)
+ panic("Dual rank memory not supported\n");
+
+ /* Mux pin to A15 address line for single rank memory. */
+ setbits_le32(&mctl_com->cr_r1, MCTL_CR_R1_MUX_A15);
+ }
}
static void mctl_sys_init(uint16_t socid, struct dram_para *para)
@@ -407,14 +466,14 @@ static void mctl_sys_init(uint16_t socid, struct dram_para *para)
clrbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_MCTL);
clrbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_MCTL);
clrbits_le32(&ccm->pll5_cfg, CCM_PLL5_CTRL_EN);
- if (socid == SOCID_A64)
+ if (socid == SOCID_A64 || socid == SOCID_R40)
clrbits_le32(&ccm->pll11_cfg, CCM_PLL11_CTRL_EN);
udelay(10);
clrbits_le32(&ccm->dram_clk_cfg, CCM_DRAMCLK_CFG_RST);
udelay(1000);
- if (socid == SOCID_A64) {
+ if (socid == SOCID_A64 || socid == SOCID_R40) {
clock_set_pll11(CONFIG_DRAM_CLK * 2 * 1000000, false);
clrsetbits_le32(&ccm->dram_clk_cfg,
CCM_DRAMCLK_CFG_DIV_MASK |
@@ -459,7 +518,7 @@ static int mctl_channel_init(uint16_t socid, struct dram_para *para)
unsigned int i;
- mctl_set_cr(para);
+ mctl_set_cr(socid, para);
mctl_set_timing_params(socid, para);
mctl_set_master_priority(socid);
@@ -506,6 +565,13 @@ static int mctl_channel_init(uint16_t socid, struct dram_para *para)
clrsetbits_le32(&mctl_ctl->pgcr[2], (0x3 << 10) | (0x3 << 8),
(0x1 << 10) | (0x2 << 8));
} else if (socid == SOCID_A64 || socid == SOCID_H5) {
+ /* dphy & aphy phase select ? */
+ clrsetbits_le32(&mctl_ctl->pgcr[2], (0x3 << 10) | (0x3 << 8),
+ (0x0 << 10) | (0x3 << 8));
+ } else if (socid == SOCID_R40) {
+ /* dx ddr_clk & hdr_clk dynamic mode (tpr13[9] == 0) */
+ clrbits_le32(&mctl_ctl->pgcr[0], (0x3 << 14) | (0x3 << 12));
+
/* dphy & aphy phase select ? */
clrsetbits_le32(&mctl_ctl->pgcr[2], (0x3 << 10) | (0x3 << 8),
(0x0 << 10) | (0x3 << 8));
@@ -535,6 +601,11 @@ static int mctl_channel_init(uint16_t socid, struct dram_para *para)
mctl_phy_init(PIR_ZCAL | PIR_PLLINIT | PIR_DCAL | PIR_PHYRST |
PIR_DRAMRST | PIR_DRAMINIT | PIR_QSGATE);
/* no PIR_QSGATE for H5 ???? */
+ } else if (socid == SOCID_R40) {
+ clrsetbits_le32(&mctl_ctl->zqcr, 0xffffff, CONFIG_DRAM_ZQ);
+
+ mctl_phy_init(PIR_ZCAL | PIR_PLLINIT | PIR_DCAL | PIR_PHYRST |
+ PIR_DRAMRST | PIR_DRAMINIT);
}
/* detect ranks and bus width */
@@ -554,7 +625,7 @@ static int mctl_channel_init(uint16_t socid, struct dram_para *para)
para->bus_width = 16;
}
- mctl_set_cr(para);
+ mctl_set_cr(socid, para);
udelay(20);
/* re-train */
@@ -575,7 +646,7 @@ static int mctl_channel_init(uint16_t socid, struct dram_para *para)
/* set PGCR3, CKE polarity */
if (socid == SOCID_H3)
writel(0x00aa0060, &mctl_ctl->pgcr[3]);
- else if (socid == SOCID_A64 || socid == SOCID_H5)
+ else if (socid == SOCID_A64 || socid == SOCID_H5 || socid == SOCID_R40)
writel(0xc0aa0060, &mctl_ctl->pgcr[3]);
/* power down zq calibration module for power save */
@@ -587,12 +658,12 @@ static int mctl_channel_init(uint16_t socid, struct dram_para *para)
return 0;
}
-static void mctl_auto_detect_dram_size(struct dram_para *para)
+static void mctl_auto_detect_dram_size(uint16_t socid, struct dram_para *para)
{
/* detect row address bits */
para->page_size = 512;
para->row_bits = 16;
- mctl_set_cr(para);
+ mctl_set_cr(socid, para);
for (para->row_bits = 11; para->row_bits < 16; para->row_bits++)
if (mctl_mem_matches((1 << (para->row_bits + 3)) * para->page_size))
@@ -600,7 +671,7 @@ static void mctl_auto_detect_dram_size(struct dram_para *para)
/* detect page size */
para->page_size = 8192;
- mctl_set_cr(para);
+ mctl_set_cr(socid, para);
for (para->page_size = 512; para->page_size < 8192; para->page_size *= 2)
if (mctl_mem_matches(para->page_size))
@@ -630,6 +701,22 @@ static void mctl_auto_detect_dram_size(struct dram_para *para)
0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0 }
+#define SUN8I_R40_DX_READ_DELAYS \
+ {{ 14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 0 }, \
+ { 14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 0 }, \
+ { 14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 0 }, \
+ { 14, 14, 14, 14, 14, 14, 14, 14, 14, 0, 0 } }
+#define SUN8I_R40_DX_WRITE_DELAYS \
+ {{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0 }, \
+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0 }, \
+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0 }, \
+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0 } }
+#define SUN8I_R40_AC_DELAYS \
+ { 0, 0, 3, 0, 0, 0, 0, 0, \
+ 0, 0, 0, 0, 0, 0, 0, 0, \
+ 0, 0, 0, 0, 0, 0, 0, 0, \
+ 0, 0, 0, 0, 0, 0, 0 }
+
#define SUN50I_A64_DX_READ_DELAYS \
{{ 16, 16, 16, 16, 17, 16, 16, 17, 16, 1, 0 }, \
{ 17, 17, 17, 17, 17, 17, 17, 17, 17, 1, 0 }, \
@@ -679,6 +766,10 @@ unsigned long sunxi_dram_init(void)
.dx_read_delays = SUN8I_H3_DX_READ_DELAYS,
.dx_write_delays = SUN8I_H3_DX_WRITE_DELAYS,
.ac_delays = SUN8I_H3_AC_DELAYS,
+#elif defined(CONFIG_MACH_SUN8I_R40)
+ .dx_read_delays = SUN8I_R40_DX_READ_DELAYS,
+ .dx_write_delays = SUN8I_R40_DX_WRITE_DELAYS,
+ .ac_delays = SUN8I_R40_AC_DELAYS,
#elif defined(CONFIG_MACH_SUN50I)
.dx_read_delays = SUN50I_A64_DX_READ_DELAYS,
.dx_write_delays = SUN50I_A64_DX_WRITE_DELAYS,
@@ -696,6 +787,8 @@ unsigned long sunxi_dram_init(void)
*/
#if defined(CONFIG_MACH_SUN8I_H3)
uint16_t socid = SOCID_H3;
+#elif defined(CONFIG_MACH_SUN8I_R40)
+ uint16_t socid = SOCID_R40;
#elif defined(CONFIG_MACH_SUN50I)
uint16_t socid = SOCID_A64;
#elif defined(CONFIG_MACH_SUN50I_H5)
@@ -716,9 +809,11 @@ unsigned long sunxi_dram_init(void)
if (socid == SOCID_H3)
writel(0x0c000400, &mctl_ctl->odtcfg);
- if (socid == SOCID_A64 || socid == SOCID_H5) {
+ if (socid == SOCID_A64 || socid == SOCID_H5 || socid == SOCID_R40) {
+ /* VTF enable (tpr13[8] == 1) */
setbits_le32(&mctl_ctl->vtfcr,
- (socid == SOCID_H5 ? 3 : 2) << 8);
+ (socid != SOCID_A64 ? 3 : 2) << 8);
+ /* DQ hold disable (tpr13[26] == 1) */
clrbits_le32(&mctl_ctl->pgcr[2], (1 << 13));
}
@@ -726,8 +821,8 @@ unsigned long sunxi_dram_init(void)
setbits_le32(&mctl_com->cccr, 1 << 31);
udelay(10);
- mctl_auto_detect_dram_size(¶);
- mctl_set_cr(¶);
+ mctl_auto_detect_dram_size(socid, ¶);
+ mctl_set_cr(socid, ¶);
return (1UL << (para.row_bits + 3)) * para.page_size *
(para.dual_rank ? 2 : 1);