#define puts(s)
#endif
+const u32 sys_clk_array[8] = {
+ 12000000, /* 12 MHz */
+ 13000000, /* 13 MHz */
+ 16800000, /* 16.8 MHz */
+ 19200000, /* 19.2 MHz */
+ 26000000, /* 26 MHz */
+ 27000000, /* 27 MHz */
+ 38400000, /* 38.4 MHz */
+ 20000000, /* 20 MHz */
+};
+
static inline u32 __get_sys_clk_index(void)
{
- u32 ind;
+ s8 ind;
/*
* For ES1 the ROM code calibration of sys clock is not reliable
* due to hw issue. So, use hard-coded value. If this value is not
/* SYS_CLKSEL - 1 to match the dpll param array indices */
ind = (readl((*prcm)->cm_sys_clksel) &
CM_SYS_CLKSEL_SYS_CLKSEL_MASK) - 1;
+ /*
+ * SYS_CLKSEL value for 20MHz is 0. This is introduced newly
+ * in DRA7XX socs. SYS_CLKSEL -1 will be greater than
+ * NUM_SYS_CLK. So considering the last 3 bits as the index
+ * for the dpll param array.
+ */
+ ind &= CM_SYS_CLKSEL_SYS_CLKSEL_MASK;
}
return ind;
}
return sys_clk_array[index];
}
+void setup_post_dividers(u32 const base, const struct dpll_params *params)
+{
+ struct dpll_regs *const dpll_regs = (struct dpll_regs *)base;
+
+ /* Setup post-dividers */
+ if (params->m2 >= 0)
+ writel(params->m2, &dpll_regs->cm_div_m2_dpll);
+ if (params->m3 >= 0)
+ writel(params->m3, &dpll_regs->cm_div_m3_dpll);
+ if (params->m4_h11 >= 0)
+ writel(params->m4_h11, &dpll_regs->cm_div_m4_h11_dpll);
+ if (params->m5_h12 >= 0)
+ writel(params->m5_h12, &dpll_regs->cm_div_m5_h12_dpll);
+ if (params->m6_h13 >= 0)
+ writel(params->m6_h13, &dpll_regs->cm_div_m6_h13_dpll);
+ if (params->m7_h14 >= 0)
+ writel(params->m7_h14, &dpll_regs->cm_div_m7_h14_dpll);
+ if (params->h21 >= 0)
+ writel(params->h21, &dpll_regs->cm_div_h21_dpll);
+ if (params->h22 >= 0)
+ writel(params->h22, &dpll_regs->cm_div_h22_dpll);
+ if (params->h23 >= 0)
+ writel(params->h23, &dpll_regs->cm_div_h23_dpll);
+ if (params->h24 >= 0)
+ writel(params->h24, &dpll_regs->cm_div_h24_dpll);
+}
+
static inline void do_bypass_dpll(u32 const base)
{
struct dpll_regs *dpll_regs = (struct dpll_regs *)base;
return lock;
}
+const struct dpll_params *get_mpu_dpll_params(struct dplls const *dpll_data)
+{
+ u32 sysclk_ind = get_sys_clk_index();
+ return &dpll_data->mpu[sysclk_ind];
+}
+
+const struct dpll_params *get_core_dpll_params(struct dplls const *dpll_data)
+{
+ u32 sysclk_ind = get_sys_clk_index();
+ return &dpll_data->core[sysclk_ind];
+}
+
+const struct dpll_params *get_per_dpll_params(struct dplls const *dpll_data)
+{
+ u32 sysclk_ind = get_sys_clk_index();
+ return &dpll_data->per[sysclk_ind];
+}
+
+const struct dpll_params *get_iva_dpll_params(struct dplls const *dpll_data)
+{
+ u32 sysclk_ind = get_sys_clk_index();
+ return &dpll_data->iva[sysclk_ind];
+}
+
+const struct dpll_params *get_usb_dpll_params(struct dplls const *dpll_data)
+{
+ u32 sysclk_ind = get_sys_clk_index();
+ return &dpll_data->usb[sysclk_ind];
+}
+
+const struct dpll_params *get_abe_dpll_params(struct dplls const *dpll_data)
+{
+#ifdef CONFIG_SYS_OMAP_ABE_SYSCK
+ u32 sysclk_ind = get_sys_clk_index();
+ return &dpll_data->abe[sysclk_ind];
+#else
+ return dpll_data->abe;
+#endif
+}
+
+static const struct dpll_params *get_ddr_dpll_params
+ (struct dplls const *dpll_data)
+{
+ u32 sysclk_ind = get_sys_clk_index();
+
+ if (!dpll_data->ddr)
+ return NULL;
+ return &dpll_data->ddr[sysclk_ind];
+}
+
static void do_setup_dpll(u32 const base, const struct dpll_params *params,
u8 lock, char *dpll)
{
u32 temp, M, N;
struct dpll_regs *const dpll_regs = (struct dpll_regs *)base;
+ if (!params)
+ return;
+
temp = readl(&dpll_regs->cm_clksel_dpll);
if (check_for_lock(base)) {
omap_rev = omap_revision();
sys_clk_khz = get_sys_clk_freq() / 1000;
- core_dpll_params = get_core_dpll_params();
+ core_dpll_params = get_core_dpll_params(*dplls_data);
debug("sys_clk %d\n ", sys_clk_khz * 1000);
CM_CLKSEL_DCC_EN_MASK);
}
- setbits_le32((*prcm)->cm_mpu_mpu_clkctrl,
- MPU_CLKCTRL_CLKSEL_EMIF_DIV_MODE_MASK);
- setbits_le32((*prcm)->cm_mpu_mpu_clkctrl,
- MPU_CLKCTRL_CLKSEL_ABE_DIV_MODE_MASK);
-
- params = get_mpu_dpll_params();
+ params = get_mpu_dpll_params(*dplls_data);
do_setup_dpll((*prcm)->cm_clkmode_dpll_mpu, params, DPLL_LOCK, "mpu");
debug("MPU DPLL locked\n");
* Use CLKINP in KHz and adjust the denominator accordingly so
* that we have enough accuracy and at the same time no overflow
*/
- params = get_usb_dpll_params();
+ params = get_usb_dpll_params(*dplls_data);
num = params->m * sys_clk_khz;
den = (params->n + 1) * 250 * 1000;
num += den - 1;
debug("setup_dplls\n");
/* CORE dpll */
- params = get_core_dpll_params(); /* default - safest */
+ params = get_core_dpll_params(*dplls_data); /* default - safest */
/*
* Do not lock the core DPLL now. Just set it up.
* Core DPLL will be locked after setting up EMIF
debug("Core DPLL configured\n");
/* lock PER dpll */
- params = get_per_dpll_params();
+ params = get_per_dpll_params(*dplls_data);
do_setup_dpll((*prcm)->cm_clkmode_dpll_per,
params, DPLL_LOCK, "per");
debug("PER DPLL locked\n");
#ifdef CONFIG_USB_EHCI_OMAP
setup_usb_dpll();
#endif
+ params = get_ddr_dpll_params(*dplls_data);
+ do_setup_dpll((*prcm)->cm_clkmode_dpll_ddrphy,
+ params, DPLL_LOCK, "ddr");
}
#ifdef CONFIG_SYS_CLOCKS_ENABLE_ALL
clrsetbits_le32((*prcm)->cm_bypclk_dpll_iva,
CM_BYPCLK_DPLL_IVA_CLKSEL_MASK, DPLL_IVA_CLKSEL_CORE_X2_DIV_2);
- params = get_iva_dpll_params();
+ params = get_iva_dpll_params(*dplls_data);
do_setup_dpll((*prcm)->cm_clkmode_dpll_iva, params, DPLL_LOCK, "iva");
/* Configure ABE dpll */
- params = get_abe_dpll_params();
+ params = get_abe_dpll_params(*dplls_data);
#ifdef CONFIG_SYS_OMAP_ABE_SYSCK
abe_ref_clk = CM_ABE_PLL_REF_CLKSEL_CLKSEL_SYSCLK;
#else
}
#endif
-void do_scale_tps62361(int gpio, u32 reg, u32 volt_mv)
+u32 get_offset_code(u32 volt_offset, struct pmic_data *pmic)
{
- u32 step;
- int ret = 0;
-
- /* See if we can first get the GPIO if needed */
- if (gpio >= 0)
- ret = gpio_request(gpio, "TPS62361_VSEL0_GPIO");
- if (ret < 0) {
- printf("%s: gpio %d request failed %d\n", __func__, gpio, ret);
- gpio = -1;
- }
-
- /* Pull the GPIO low to select SET0 register, while we program SET1 */
- if (gpio >= 0)
- gpio_direction_output(gpio, 0);
+ u32 offset_code;
- step = volt_mv - TPS62361_BASE_VOLT_MV;
- step /= 10;
+ volt_offset -= pmic->base_offset;
- debug("do_scale_tps62361: volt - %d step - 0x%x\n", volt_mv, step);
- if (omap_vc_bypass_send_value(TPS62361_I2C_SLAVE_ADDR, reg, step))
- puts("Scaling voltage failed for vdd_mpu from TPS\n");
+ offset_code = (volt_offset + pmic->step - 1) / pmic->step;
- /* Pull the GPIO high to select SET1 register */
- if (gpio >= 0)
- gpio_direction_output(gpio, 1);
+ /*
+ * Offset codes 1-6 all give the base voltage in Palmas
+ * Offset code 0 switches OFF the SMPS
+ */
+ return offset_code + pmic->start_code;
}
-void do_scale_vcore(u32 vcore_reg, u32 volt_mv)
+void do_scale_vcore(u32 vcore_reg, u32 volt_mv, struct pmic_data *pmic)
{
u32 offset_code;
u32 offset = volt_mv;
+ int ret = 0;
+
+ /* See if we can first get the GPIO if needed */
+ if (pmic->gpio_en)
+ ret = gpio_request(pmic->gpio, "PMIC_GPIO");
+
+ if (ret < 0) {
+ printf("%s: gpio %d request failed %d\n", __func__,
+ pmic->gpio, ret);
+ return;
+ }
+
+ /* Pull the GPIO low to select SET0 register, while we program SET1 */
+ if (pmic->gpio_en)
+ gpio_direction_output(pmic->gpio, 0);
/* convert to uV for better accuracy in the calculations */
offset *= 1000;
- offset_code = get_offset_code(offset);
+ offset_code = get_offset_code(offset, pmic);
debug("do_scale_vcore: volt - %d offset_code - 0x%x\n", volt_mv,
offset_code);
if (omap_vc_bypass_send_value(SMPS_I2C_SLAVE_ADDR,
vcore_reg, offset_code))
printf("Scaling voltage failed for 0x%x\n", vcore_reg);
+
+ if (pmic->gpio_en)
+ gpio_direction_output(pmic->gpio, 1);
+}
+
+/*
+ * Setup the voltages for vdd_mpu, vdd_core, and vdd_iva
+ * We set the maximum voltages allowed here because Smart-Reflex is not
+ * enabled in bootloader. Voltage initialization in the kernel will set
+ * these to the nominal values after enabling Smart-Reflex
+ */
+void scale_vcores(struct vcores_data const *vcores)
+{
+ omap_vc_init(PRM_VC_I2C_CHANNEL_FREQ_KHZ);
+
+ do_scale_vcore(vcores->core.addr, vcores->core.value,
+ vcores->core.pmic);
+
+ do_scale_vcore(vcores->mpu.addr, vcores->mpu.value,
+ vcores->mpu.pmic);
+
+ do_scale_vcore(vcores->mm.addr, vcores->mm.value,
+ vcores->mm.pmic);
+
+ if (emif_sdram_type() == EMIF_SDRAM_TYPE_DDR3) {
+ /* Configure LDO SRAM "magic" bits */
+ writel(2, (*prcm)->prm_sldo_core_setup);
+ writel(2, (*prcm)->prm_sldo_mpu_setup);
+ writel(2, (*prcm)->prm_sldo_mm_setup);
+ }
}
static inline void enable_clock_domain(u32 const clkctrl_reg, u32 enable_mode)
const struct dpll_params *core_dpll_params;
u32 omap_rev = omap_revision();
- core_dpll_params = get_core_dpll_params();
+ core_dpll_params = get_core_dpll_params(*dplls_data);
/* Put EMIF clock domain in sw wakeup mode */
enable_clock_domain((*prcm)->cm_memif_clkstctrl,
CD_CLKCTRL_CLKTRCTRL_SW_WKUP);
case OMAP_INIT_CONTEXT_UBOOT_FROM_NOR:
case OMAP_INIT_CONTEXT_UBOOT_AFTER_CH:
enable_basic_clocks();
- scale_vcores();
+ scale_vcores(*omap_vcores);
setup_dplls();
#ifdef CONFIG_SYS_CLOCKS_ENABLE_ALL
setup_non_essential_dplls();
projects / karo-tx-uboot.git / blobdiff