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Diffstat (limited to 'arch/arm/mach-sunxi/dram_sun8i_h3.c')
-rw-r--r--arch/arm/mach-sunxi/dram_sun8i_h3.c121
1 files changed, 108 insertions, 13 deletions
diff --git a/arch/arm/mach-sunxi/dram_sun8i_h3.c b/arch/arm/mach-sunxi/dram_sun8i_h3.c
index d681a9df8b..2d12661a14 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);
@@ -509,6 +568,13 @@ static int mctl_channel_init(uint16_t socid, struct dram_para *para)
/* 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));
}
/* set half DQ */
@@ -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(&para);
- mctl_set_cr(&para);
+ mctl_auto_detect_dram_size(socid, &para);
+ mctl_set_cr(socid, &para);
return (1UL << (para.row_bits + 3)) * para.page_size *
(para.dual_rank ? 2 : 1);
generated by cgit (git 2.34.1) at 2024-12-25 01:39:49 +0000