/*
* i.MX28 DDR2 at 200MHz
*/
-#if defined(CONFIG_MX28)
+#if defined(CONFIG_SOC_MX28)
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
/*
* i.MX23 DDR at 133MHz
*/
-#elif defined(CONFIG_MX23)
+#elif defined(CONFIG_SOC_MX23)
0x01010001, 0x00010100, 0x01000101, 0x00000001,
0x00000101, 0x00000000, 0x00010000, 0x01000001,
0x00000000, 0x00000001, 0x07000200, 0x00070202,
__weak void mxs_adjust_memory_params(uint32_t *dram_vals)
{
+ debug("SPL: Using default SDRAM parameters\n");
}
-#ifdef CONFIG_MX28
+#ifdef CONFIG_SOC_MX28
static void initialize_dram_values(void)
{
int i;
+ debug("SPL: Setting mx28 board specific SDRAM parameters\n");
mxs_adjust_memory_params(dram_vals);
+ debug("SPL: Applying SDRAM parameters\n");
for (i = 0; i < ARRAY_SIZE(dram_vals); i++)
writel(dram_vals[i], MXS_DRAM_BASE + (4 * i));
}
{
int i;
+ debug("SPL: Setting mx23 board specific SDRAM parameters\n");
mxs_adjust_memory_params(dram_vals);
/*
* HW_DRAM_CTL8 is setup as the last element.
* So skip the initialization of these HW_DRAM_CTL registers.
*/
+ debug("SPL: Applying SDRAM parameters\n");
for (i = 0; i < ARRAY_SIZE(dram_vals); i++) {
if (i == 8 || i == 27 || i == 28 || i == 35)
continue;
{
struct mxs_clkctrl_regs *clkctrl_regs =
(struct mxs_clkctrl_regs *)MXS_CLKCTRL_BASE;
-#if defined(CONFIG_MX23)
+#if defined(CONFIG_SOC_MX23)
/* Fractional divider for ref_emi is 33 ; 480 * 18 / 33 = 266MHz */
const unsigned char divider = 33;
-#elif defined(CONFIG_MX28)
+#elif defined(CONFIG_SOC_MX28)
/* Fractional divider for ref_emi is 21 ; 480 * 18 / 21 = 411MHz */
const unsigned char divider = 21;
#endif
+ debug("SPL: Initialising FRAC0\n");
+
/* Gate EMI clock */
writeb(CLKCTRL_FRAC_CLKGATE,
&clkctrl_regs->hw_clkctrl_frac0_set[CLKCTRL_FRAC0_EMI]);
/* Unbypass EMI */
writel(CLKCTRL_CLKSEQ_BYPASS_EMI,
&clkctrl_regs->hw_clkctrl_clkseq_clr);
+ debug("SPL: FRAC0 Initialised\n");
}
static void mxs_mem_setup_cpu_and_hbus(void)
struct mxs_clkctrl_regs *clkctrl_regs =
(struct mxs_clkctrl_regs *)MXS_CLKCTRL_BASE;
+ debug("SPL: Setting CPU and HBUS clock frequencies\n");
+
/* Set fractional divider for ref_cpu to 480 * 18 / 19 = 454MHz
* and ungate CPU clock */
writeb(19 & CLKCTRL_FRAC_FRAC_MASK,
&clkctrl_regs->hw_clkctrl_clkseq_clr);
}
-void data_abort_memdetect_handler(void)
+static void data_abort_memdetect_handler(void)
{
asm volatile("subs pc, lr, #4");
}
return sz;
}
-#ifdef CONFIG_MX23
+#ifdef CONFIG_SOC_MX23
static void mx23_mem_setup_vddmem(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
+ debug("SPL: Setting mx23 VDDMEM\n");
+
+ /* We must wait before and after disabling the current limiter! */
+ udelay(10000);
+
clrbits_le32(&power_regs->hw_power_vddmemctrl,
POWER_VDDMEMCTRL_ENABLE_ILIMIT);
+ udelay(10000);
+
}
static void mx23_mem_init(void)
{
+ debug("SPL: Initialising mx23 SDRAM Controller\n");
+
/*
* Reset/ungate the EMI block. This is essential, otherwise the system
* suffers from memory instability. This thing is mx23 specific and is
setbits_le32(MXS_DRAM_BASE + 0x20, 1 << 16);
clrbits_le32(MXS_DRAM_BASE + 0x40, 1 << 17);
- early_delay(20000);
+
+ /* Wait for EMI_STAT bit DRAM_HALTED */
+ for (;;) {
+ if (!(readl(MXS_EMI_BASE + 0x10) & (1 << 1)))
+ break;
+ udelay(1000);
+ }
/* Adjust EMI port priority. */
clrsetbits_le32(0x80020000, 0x1f << 16, 0x2);
- early_delay(20000);
+ udelay(20000);
setbits_le32(MXS_DRAM_BASE + 0x40, 1 << 19);
setbits_le32(MXS_DRAM_BASE + 0x40, 1 << 11);
}
#endif
-#ifdef CONFIG_MX28
+#ifdef CONFIG_SOC_MX28
static void mx28_mem_init(void)
{
struct mxs_pinctrl_regs *pinctrl_regs =
(struct mxs_pinctrl_regs *)MXS_PINCTRL_BASE;
+ debug("SPL: Initialising mx28 SDRAM Controller\n");
+
/* Set DDR2 mode */
writel(PINCTRL_EMI_DS_CTRL_DDR_MODE_DDR2,
&pinctrl_regs->hw_pinctrl_emi_ds_ctrl_set);
void mxs_mem_init(void)
{
- early_delay(11000);
+ udelay(11000);
mxs_mem_init_clock();
-#if defined(CONFIG_MX23)
+#if defined(CONFIG_SOC_MX23)
mx23_mem_init();
-#elif defined(CONFIG_MX28)
+#elif defined(CONFIG_SOC_MX28)
mx28_mem_init();
#endif