#define puts(s)
#endif
-#define abs(x) (((x) < 0) ? ((x)*-1) : (x))
-
-struct omap4_prcm_regs *const prcm = (struct omap4_prcm_regs *)0x4A004100;
-
-static 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 */
-};
-
-/*
- * The M & N values in the following tables are created using the
- * following tool:
- * tools/omap/clocks_get_m_n.c
- * Please use this tool for creating the table for any new frequency.
- */
-
-/* dpll locked at 1840 MHz MPU clk at 920 MHz(OPP Turbo 4460) - DCC OFF */
-static const struct dpll_params mpu_dpll_params_1840mhz[NUM_SYS_CLKS] = {
- {230, 2, 1, -1, -1, -1, -1, -1}, /* 12 MHz */
- {920, 12, 1, -1, -1, -1, -1, -1}, /* 13 MHz */
- {219, 3, 1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
- {575, 11, 1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
- {460, 12, 1, -1, -1, -1, -1, -1}, /* 26 MHz */
- {920, 26, 1, -1, -1, -1, -1, -1}, /* 27 MHz */
- {575, 23, 1, -1, -1, -1, -1, -1} /* 38.4 MHz */
-};
-
-/* dpll locked at 1584 MHz - MPU clk at 792 MHz(OPP Turbo 4430) */
-static const struct dpll_params mpu_dpll_params_1584mhz[NUM_SYS_CLKS] = {
- {66, 0, 1, -1, -1, -1, -1, -1}, /* 12 MHz */
- {792, 12, 1, -1, -1, -1, -1, -1}, /* 13 MHz */
- {330, 6, 1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
- {165, 3, 1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
- {396, 12, 1, -1, -1, -1, -1, -1}, /* 26 MHz */
- {88, 2, 1, -1, -1, -1, -1, -1}, /* 27 MHz */
- {165, 7, 1, -1, -1, -1, -1, -1} /* 38.4 MHz */
-};
-
-/* dpll locked at 1200 MHz - MPU clk at 600 MHz */
-static const struct dpll_params mpu_dpll_params_1200mhz[NUM_SYS_CLKS] = {
- {50, 0, 1, -1, -1, -1, -1, -1}, /* 12 MHz */
- {600, 12, 1, -1, -1, -1, -1, -1}, /* 13 MHz */
- {250, 6, 1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
- {125, 3, 1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
- {300, 12, 1, -1, -1, -1, -1, -1}, /* 26 MHz */
- {200, 8, 1, -1, -1, -1, -1, -1}, /* 27 MHz */
- {125, 7, 1, -1, -1, -1, -1, -1} /* 38.4 MHz */
-};
-
-static const struct dpll_params core_dpll_params_1600mhz[NUM_SYS_CLKS] = {
- {200, 2, 1, 5, 8, 4, 6, 5}, /* 12 MHz */
- {800, 12, 1, 5, 8, 4, 6, 5}, /* 13 MHz */
- {619, 12, 1, 5, 8, 4, 6, 5}, /* 16.8 MHz */
- {125, 2, 1, 5, 8, 4, 6, 5}, /* 19.2 MHz */
- {400, 12, 1, 5, 8, 4, 6, 5}, /* 26 MHz */
- {800, 26, 1, 5, 8, 4, 6, 5}, /* 27 MHz */
- {125, 5, 1, 5, 8, 4, 6, 5} /* 38.4 MHz */
-};
-
-static const struct dpll_params core_dpll_params_es1_1524mhz[NUM_SYS_CLKS] = {
- {127, 1, 1, 5, 8, 4, 6, 5}, /* 12 MHz */
- {762, 12, 1, 5, 8, 4, 6, 5}, /* 13 MHz */
- {635, 13, 1, 5, 8, 4, 6, 5}, /* 16.8 MHz */
- {635, 15, 1, 5, 8, 4, 6, 5}, /* 19.2 MHz */
- {381, 12, 1, 5, 8, 4, 6, 5}, /* 26 MHz */
- {254, 8, 1, 5, 8, 4, 6, 5}, /* 27 MHz */
- {496, 24, 1, 5, 8, 4, 6, 5} /* 38.4 MHz */
-};
-
-static const struct dpll_params
- core_dpll_params_es2_1600mhz_ddr200mhz[NUM_SYS_CLKS] = {
- {200, 2, 2, 5, 8, 4, 6, 5}, /* 12 MHz */
- {800, 12, 2, 5, 8, 4, 6, 5}, /* 13 MHz */
- {619, 12, 2, 5, 8, 4, 6, 5}, /* 16.8 MHz */
- {125, 2, 2, 5, 8, 4, 6, 5}, /* 19.2 MHz */
- {400, 12, 2, 5, 8, 4, 6, 5}, /* 26 MHz */
- {800, 26, 2, 5, 8, 4, 6, 5}, /* 27 MHz */
- {125, 5, 2, 5, 8, 4, 6, 5} /* 38.4 MHz */
-};
-
-static const struct dpll_params per_dpll_params_1536mhz[NUM_SYS_CLKS] = {
- {64, 0, 8, 6, 12, 9, 4, 5}, /* 12 MHz */
- {768, 12, 8, 6, 12, 9, 4, 5}, /* 13 MHz */
- {320, 6, 8, 6, 12, 9, 4, 5}, /* 16.8 MHz */
- {40, 0, 8, 6, 12, 9, 4, 5}, /* 19.2 MHz */
- {384, 12, 8, 6, 12, 9, 4, 5}, /* 26 MHz */
- {256, 8, 8, 6, 12, 9, 4, 5}, /* 27 MHz */
- {20, 0, 8, 6, 12, 9, 4, 5} /* 38.4 MHz */
-};
-
-static const struct dpll_params iva_dpll_params_1862mhz[NUM_SYS_CLKS] = {
- {931, 11, -1, -1, 4, 7, -1, -1}, /* 12 MHz */
- {931, 12, -1, -1, 4, 7, -1, -1}, /* 13 MHz */
- {665, 11, -1, -1, 4, 7, -1, -1}, /* 16.8 MHz */
- {727, 14, -1, -1, 4, 7, -1, -1}, /* 19.2 MHz */
- {931, 25, -1, -1, 4, 7, -1, -1}, /* 26 MHz */
- {931, 26, -1, -1, 4, 7, -1, -1}, /* 27 MHz */
- {412, 16, -1, -1, 4, 7, -1, -1} /* 38.4 MHz */
-};
-
-/* ABE M & N values with sys_clk as source */
-static const struct dpll_params
- abe_dpll_params_sysclk_196608khz[NUM_SYS_CLKS] = {
- {49, 5, 1, 1, -1, -1, -1, -1}, /* 12 MHz */
- {68, 8, 1, 1, -1, -1, -1, -1}, /* 13 MHz */
- {35, 5, 1, 1, -1, -1, -1, -1}, /* 16.8 MHz */
- {46, 8, 1, 1, -1, -1, -1, -1}, /* 19.2 MHz */
- {34, 8, 1, 1, -1, -1, -1, -1}, /* 26 MHz */
- {29, 7, 1, 1, -1, -1, -1, -1}, /* 27 MHz */
- {64, 24, 1, 1, -1, -1, -1, -1} /* 38.4 MHz */
-};
-
-/* ABE M & N values with 32K clock as source */
-static const struct dpll_params abe_dpll_params_32k_196608khz = {
- 750, 0, 1, 1, -1, -1, -1, -1
-};
-
-
-static const struct dpll_params usb_dpll_params_1920mhz[NUM_SYS_CLKS] = {
- {80, 0, 2, -1, -1, -1, -1, -1}, /* 12 MHz */
- {960, 12, 2, -1, -1, -1, -1, -1}, /* 13 MHz */
- {400, 6, 2, -1, -1, -1, -1, -1}, /* 16.8 MHz */
- {50, 0, 2, -1, -1, -1, -1, -1}, /* 19.2 MHz */
- {480, 12, 2, -1, -1, -1, -1, -1}, /* 26 MHz */
- {320, 8, 2, -1, -1, -1, -1, -1}, /* 27 MHz */
- {25, 0, 2, -1, -1, -1, -1, -1} /* 38.4 MHz */
-};
-
static inline u32 __get_sys_clk_index(void)
{
u32 ind;
}
}
+inline u32 check_for_lock(u32 *const base)
+{
+ struct dpll_regs *const dpll_regs = (struct dpll_regs *)base;
+ u32 lock = readl(&dpll_regs->cm_idlest_dpll) & ST_DPLL_CLK_MASK;
+
+ return lock;
+}
+
static void do_setup_dpll(u32 *const base, const struct dpll_params *params,
- u8 lock)
+ u8 lock, char *dpll)
{
- u32 temp;
+ u32 temp, M, N;
struct dpll_regs *const dpll_regs = (struct dpll_regs *)base;
+ temp = readl(&dpll_regs->cm_clksel_dpll);
+
+ if (check_for_lock(base)) {
+ /*
+ * The Dpll has already been locked by rom code using CH.
+ * Check if M,N are matching with Ideal nominal opp values.
+ * If matches, skip the rest otherwise relock.
+ */
+ M = (temp & CM_CLKSEL_DPLL_M_MASK) >> CM_CLKSEL_DPLL_M_SHIFT;
+ N = (temp & CM_CLKSEL_DPLL_N_MASK) >> CM_CLKSEL_DPLL_N_SHIFT;
+ if ((M != (params->m)) || (N != (params->n))) {
+ debug("\n %s Dpll locked, but not for ideal M = %d,"
+ "N = %d values, current values are M = %d,"
+ "N= %d" , dpll, params->m, params->n,
+ M, N);
+ } else {
+ /* Dpll locked with ideal values for nominal opps. */
+ debug("\n %s Dpll already locked with ideal"
+ "nominal opp values", dpll);
+ goto setup_post_dividers;
+ }
+ }
+
bypass_dpll(base);
/* Set M & N */
- temp = readl(&dpll_regs->cm_clksel_dpll);
-
temp &= ~CM_CLKSEL_DPLL_M_MASK;
temp |= (params->m << CM_CLKSEL_DPLL_M_SHIFT) & CM_CLKSEL_DPLL_M_MASK;
if (lock)
do_lock_dpll(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 >= 0)
- writel(params->m4, &dpll_regs->cm_div_m4_dpll);
- if (params->m5 >= 0)
- writel(params->m5, &dpll_regs->cm_div_m5_dpll);
- if (params->m6 >= 0)
- writel(params->m6, &dpll_regs->cm_div_m6_dpll);
- if (params->m7 >= 0)
- writel(params->m7, &dpll_regs->cm_div_m7_dpll);
+setup_post_dividers:
+ setup_post_dividers(base, params);
/* Wait till the DPLL locks */
if (lock)
wait_for_lock(base);
}
-const struct dpll_params *get_core_dpll_params(void)
-{
- u32 sysclk_ind = get_sys_clk_index();
-
- switch (omap_revision()) {
- case OMAP4430_ES1_0:
- return &core_dpll_params_es1_1524mhz[sysclk_ind];
- case OMAP4430_ES2_0:
- case OMAP4430_SILICON_ID_INVALID:
- /* safest */
- return &core_dpll_params_es2_1600mhz_ddr200mhz[sysclk_ind];
- default:
- return &core_dpll_params_1600mhz[sysclk_ind];
- }
-}
-
-u32 omap4_ddr_clk(void)
+u32 omap_ddr_clk(void)
{
- u32 ddr_clk, sys_clk_khz;
+ u32 ddr_clk, sys_clk_khz, omap_rev, divider;
const struct dpll_params *core_dpll_params;
+ omap_rev = omap_revision();
sys_clk_khz = get_sys_clk_freq() / 1000;
core_dpll_params = get_core_dpll_params();
/* Find Core DPLL locked frequency first */
ddr_clk = sys_clk_khz * 2 * core_dpll_params->m /
(core_dpll_params->n + 1);
- /*
- * DDR frequency is PHY_ROOT_CLK/2
- * PHY_ROOT_CLK = Fdpll/2/M2
- */
- ddr_clk = ddr_clk / 4 / core_dpll_params->m2;
+ if (omap_rev < OMAP5430_ES1_0) {
+ /*
+ * DDR frequency is PHY_ROOT_CLK/2
+ * PHY_ROOT_CLK = Fdpll/2/M2
+ */
+ divider = 4;
+ } else {
+ /*
+ * DDR frequency is PHY_ROOT_CLK
+ * PHY_ROOT_CLK = Fdpll/2/M2
+ */
+ divider = 2;
+ }
+
+ ddr_clk = ddr_clk / divider / core_dpll_params->m2;
ddr_clk *= 1000; /* convert to Hz */
debug("ddr_clk %d\n ", ddr_clk);
{
const struct dpll_params *params;
struct dpll_regs *mpu_dpll_regs;
- u32 omap4_rev, sysclk_ind;
-
- omap4_rev = omap_revision();
- sysclk_ind = get_sys_clk_index();
-
- if (omap4_rev == OMAP4430_ES1_0)
- params = &mpu_dpll_params_1200mhz[sysclk_ind];
- else if (omap4_rev < OMAP4460_ES1_0)
- params = &mpu_dpll_params_1584mhz[sysclk_ind];
- else
- params = &mpu_dpll_params_1840mhz[sysclk_ind];
+ u32 omap_rev;
+ omap_rev = omap_revision();
- /* DCC and clock divider settings for 4460 */
- if (omap4_rev >= OMAP4460_ES1_0) {
+ /*
+ * DCC and clock divider settings for 4460.
+ * DCC is required, if more than a certain frequency is required.
+ * For, 4460 > 1GHZ.
+ * 5430 > 1.4GHZ.
+ */
+ if ((omap_rev >= OMAP4460_ES1_0) && (omap_rev < OMAP5430_ES1_0)) {
mpu_dpll_regs =
(struct dpll_regs *)&prcm->cm_clkmode_dpll_mpu;
bypass_dpll(&prcm->cm_clkmode_dpll_mpu);
CM_CLKSEL_DCC_EN_MASK);
}
- do_setup_dpll(&prcm->cm_clkmode_dpll_mpu, params, DPLL_LOCK);
+ params = get_mpu_dpll_params();
+
+ do_setup_dpll(&prcm->cm_clkmode_dpll_mpu, params, DPLL_LOCK, "mpu");
debug("MPU DPLL locked\n");
}
+#ifdef CONFIG_USB_EHCI_OMAP
+static void setup_usb_dpll(void)
+{
+ const struct dpll_params *params;
+ u32 sys_clk_khz, sd_div, num, den;
+
+ sys_clk_khz = get_sys_clk_freq() / 1000;
+ /*
+ * USB:
+ * USB dpll is J-type. Need to set DPLL_SD_DIV for jitter correction
+ * DPLL_SD_DIV = CEILING ([DPLL_MULT/(DPLL_DIV+1)]* CLKINP / 250)
+ * - where CLKINP is sys_clk in MHz
+ * 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();
+ num = params->m * sys_clk_khz;
+ den = (params->n + 1) * 250 * 1000;
+ num += den - 1;
+ sd_div = num / den;
+ clrsetbits_le32(&prcm->cm_clksel_dpll_usb,
+ CM_CLKSEL_DPLL_DPLL_SD_DIV_MASK,
+ sd_div << CM_CLKSEL_DPLL_DPLL_SD_DIV_SHIFT);
+
+ /* Now setup the dpll with the regular function */
+ do_setup_dpll(&prcm->cm_clkmode_dpll_usb, params, DPLL_LOCK, "usb");
+}
+#endif
+
static void setup_dplls(void)
{
- u32 sysclk_ind, temp;
+ u32 temp;
const struct dpll_params *params;
- debug("setup_dplls\n");
- sysclk_ind = get_sys_clk_index();
+ debug("setup_dplls\n");
/* CORE dpll */
params = get_core_dpll_params(); /* default - safest */
* Core DPLL will be locked after setting up EMIF
* using the FREQ_UPDATE method(freq_update_core())
*/
- do_setup_dpll(&prcm->cm_clkmode_dpll_core, params, DPLL_NO_LOCK);
+ do_setup_dpll(&prcm->cm_clkmode_dpll_core, params, DPLL_NO_LOCK,
+ "core");
/* Set the ratios for CORE_CLK, L3_CLK, L4_CLK */
temp = (CLKSEL_CORE_X2_DIV_1 << CLKSEL_CORE_SHIFT) |
(CLKSEL_L3_CORE_DIV_2 << CLKSEL_L3_SHIFT) |
debug("Core DPLL configured\n");
/* lock PER dpll */
+ params = get_per_dpll_params();
do_setup_dpll(&prcm->cm_clkmode_dpll_per,
- &per_dpll_params_1536mhz[sysclk_ind], DPLL_LOCK);
+ params, DPLL_LOCK, "per");
debug("PER DPLL locked\n");
/* MPU dpll */
configure_mpu_dpll();
+
+#ifdef CONFIG_USB_EHCI_OMAP
+ setup_usb_dpll();
+#endif
}
+#ifdef CONFIG_SYS_CLOCKS_ENABLE_ALL
static void setup_non_essential_dplls(void)
{
u32 sys_clk_khz, abe_ref_clk;
- u32 sysclk_ind, sd_div, num, den;
const struct dpll_params *params;
- sysclk_ind = get_sys_clk_index();
sys_clk_khz = get_sys_clk_freq() / 1000;
/* IVA */
clrsetbits_le32(&prcm->cm_bypclk_dpll_iva,
CM_BYPCLK_DPLL_IVA_CLKSEL_MASK, DPLL_IVA_CLKSEL_CORE_X2_DIV_2);
- do_setup_dpll(&prcm->cm_clkmode_dpll_iva,
- &iva_dpll_params_1862mhz[sysclk_ind], DPLL_LOCK);
+ params = get_iva_dpll_params();
+ do_setup_dpll(&prcm->cm_clkmode_dpll_iva, params, DPLL_LOCK, "iva");
- /*
- * USB:
- * USB dpll is J-type. Need to set DPLL_SD_DIV for jitter correction
- * DPLL_SD_DIV = CEILING ([DPLL_MULT/(DPLL_DIV+1)]* CLKINP / 250)
- * - where CLKINP is sys_clk in MHz
- * Use CLKINP in KHz and adjust the denominator accordingly so
- * that we have enough accuracy and at the same time no overflow
- */
- params = &usb_dpll_params_1920mhz[sysclk_ind];
- num = params->m * sys_clk_khz;
- den = (params->n + 1) * 250 * 1000;
- num += den - 1;
- sd_div = num / den;
- clrsetbits_le32(&prcm->cm_clksel_dpll_usb,
- CM_CLKSEL_DPLL_DPLL_SD_DIV_MASK,
- sd_div << CM_CLKSEL_DPLL_DPLL_SD_DIV_SHIFT);
-
- /* Now setup the dpll with the regular function */
- do_setup_dpll(&prcm->cm_clkmode_dpll_usb, params, DPLL_LOCK);
-
-#ifdef CONFIG_SYS_OMAP4_ABE_SYSCK
- params = &abe_dpll_params_sysclk_196608khz[sysclk_ind];
+ /* Configure ABE dpll */
+ params = get_abe_dpll_params();
+#ifdef CONFIG_SYS_OMAP_ABE_SYSCK
abe_ref_clk = CM_ABE_PLL_REF_CLKSEL_CLKSEL_SYSCLK;
#else
- params = &abe_dpll_params_32k_196608khz;
abe_ref_clk = CM_ABE_PLL_REF_CLKSEL_CLKSEL_32KCLK;
/*
* We need to enable some additional options to achieve
CM_ABE_PLL_REF_CLKSEL_CLKSEL_MASK,
abe_ref_clk << CM_ABE_PLL_REF_CLKSEL_CLKSEL_SHIFT);
/* Lock the dpll */
- do_setup_dpll(&prcm->cm_clkmode_dpll_abe, params, DPLL_LOCK);
+ do_setup_dpll(&prcm->cm_clkmode_dpll_abe, params, DPLL_LOCK, "abe");
}
+#endif
-static void do_scale_tps62361(u32 reg, u32 volt_mv)
+void do_scale_tps62361(u32 reg, u32 volt_mv)
{
u32 temp, step;
step = volt_mv - TPS62361_BASE_VOLT_MV;
step /= 10;
- /*
- * Select SET1 in TPS62361:
- * VSEL1 is grounded on board. So the following selects
- * VSEL1 = 0 and VSEL0 = 1
- */
- gpio_direction_output(TPS62361_VSEL0_GPIO, 0);
- gpio_set_value(TPS62361_VSEL0_GPIO, 1);
-
temp = TPS62361_I2C_SLAVE_ADDR |
(reg << PRM_VC_VAL_BYPASS_REGADDR_SHIFT) |
(step << PRM_VC_VAL_BYPASS_DATA_SHIFT) |
}
}
-static void do_scale_vcore(u32 vcore_reg, u32 volt_mv)
+void do_scale_vcore(u32 vcore_reg, u32 volt_mv)
{
u32 temp, offset_code;
u32 step = 12660; /* 12.66 mV represented in uV */
}
}
-/*
- * 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
- */
-static void scale_vcores(void)
-{
- u32 volt, sys_clk_khz, cycles_hi, cycles_low, temp, omap4_rev;
-
- sys_clk_khz = get_sys_clk_freq() / 1000;
-
- /*
- * Setup the dedicated I2C controller for Voltage Control
- * I2C clk - high period 40% low period 60%
- */
- cycles_hi = sys_clk_khz * 4 / PRM_VC_I2C_CHANNEL_FREQ_KHZ / 10;
- cycles_low = sys_clk_khz * 6 / PRM_VC_I2C_CHANNEL_FREQ_KHZ / 10;
- /* values to be set in register - less by 5 & 7 respectively */
- cycles_hi -= 5;
- cycles_low -= 7;
- temp = (cycles_hi << PRM_VC_CFG_I2C_CLK_SCLH_SHIFT) |
- (cycles_low << PRM_VC_CFG_I2C_CLK_SCLL_SHIFT);
- writel(temp, &prcm->prm_vc_cfg_i2c_clk);
-
- /* Disable high speed mode and all advanced features */
- writel(0x0, &prcm->prm_vc_cfg_i2c_mode);
-
- omap4_rev = omap_revision();
- /* TPS - supplies vdd_mpu on 4460 */
- if (omap4_rev >= OMAP4460_ES1_0) {
- volt = 1430;
- do_scale_tps62361(TPS62361_REG_ADDR_SET1, volt);
- }
-
- /*
- * VCORE 1
- *
- * 4430 : supplies vdd_mpu
- * Setting a high voltage for Nitro mode as smart reflex is not enabled.
- * We use the maximum possible value in the AVS range because the next
- * higher voltage in the discrete range (code >= 0b111010) is way too
- * high
- *
- * 4460 : supplies vdd_core
- */
- if (omap4_rev < OMAP4460_ES1_0) {
- volt = 1417;
- do_scale_vcore(SMPS_REG_ADDR_VCORE1, volt);
- } else {
- volt = 1200;
- do_scale_vcore(SMPS_REG_ADDR_VCORE1, volt);
- }
-
- /* VCORE 2 - supplies vdd_iva */
- volt = 1200;
- do_scale_vcore(SMPS_REG_ADDR_VCORE2, volt);
-
- /*
- * VCORE 3
- * 4430 : supplies vdd_core
- * 4460 : not connected
- */
- if (omap4_rev < OMAP4460_ES1_0) {
- volt = 1200;
- do_scale_vcore(SMPS_REG_ADDR_VCORE3, volt);
- }
-}
-
static inline void enable_clock_domain(u32 *const clkctrl_reg, u32 enable_mode)
{
clrsetbits_le32(clkctrl_reg, CD_CLKCTRL_CLKTRCTRL_MASK,
wait_for_clk_enable(clkctrl_addr);
}
-/*
- * Enable essential clock domains, modules and
- * do some additional special settings needed
- */
-static void enable_basic_clocks(void)
-{
- u32 i, max = 100, wait_for_enable = 1;
- u32 *const clk_domains_essential[] = {
- &prcm->cm_l4per_clkstctrl,
- &prcm->cm_l3init_clkstctrl,
- &prcm->cm_memif_clkstctrl,
- &prcm->cm_l4cfg_clkstctrl,
- 0
- };
-
- u32 *const clk_modules_hw_auto_essential[] = {
- &prcm->cm_wkup_gpio1_clkctrl,
- &prcm->cm_l4per_gpio2_clkctrl,
- &prcm->cm_l4per_gpio3_clkctrl,
- &prcm->cm_l4per_gpio4_clkctrl,
- &prcm->cm_l4per_gpio5_clkctrl,
- &prcm->cm_l4per_gpio6_clkctrl,
- &prcm->cm_memif_emif_1_clkctrl,
- &prcm->cm_memif_emif_2_clkctrl,
- &prcm->cm_l3init_hsusbotg_clkctrl,
- &prcm->cm_l3init_usbphy_clkctrl,
- &prcm->cm_l4cfg_l4_cfg_clkctrl,
- 0
- };
-
- u32 *const clk_modules_explicit_en_essential[] = {
- &prcm->cm_l4per_gptimer2_clkctrl,
- &prcm->cm_l3init_hsmmc1_clkctrl,
- &prcm->cm_l3init_hsmmc2_clkctrl,
- &prcm->cm_l4per_mcspi1_clkctrl,
- &prcm->cm_wkup_gptimer1_clkctrl,
- &prcm->cm_l4per_i2c1_clkctrl,
- &prcm->cm_l4per_i2c2_clkctrl,
- &prcm->cm_l4per_i2c3_clkctrl,
- &prcm->cm_l4per_i2c4_clkctrl,
- &prcm->cm_wkup_wdtimer2_clkctrl,
- &prcm->cm_l4per_uart3_clkctrl,
- 0
- };
-
- /* Enable optional additional functional clock for GPIO4 */
- setbits_le32(&prcm->cm_l4per_gpio4_clkctrl,
- GPIO4_CLKCTRL_OPTFCLKEN_MASK);
-
- /* Enable 96 MHz clock for MMC1 & MMC2 */
- setbits_le32(&prcm->cm_l3init_hsmmc1_clkctrl,
- HSMMC_CLKCTRL_CLKSEL_MASK);
- setbits_le32(&prcm->cm_l3init_hsmmc2_clkctrl,
- HSMMC_CLKCTRL_CLKSEL_MASK);
-
- /* Select 32KHz clock as the source of GPTIMER1 */
- setbits_le32(&prcm->cm_wkup_gptimer1_clkctrl,
- GPTIMER1_CLKCTRL_CLKSEL_MASK);
-
- /* Enable optional 48M functional clock for USB PHY */
- setbits_le32(&prcm->cm_l3init_usbphy_clkctrl,
- USBPHY_CLKCTRL_OPTFCLKEN_PHY_48M_MASK);
-
- /* Put the clock domains in SW_WKUP mode */
- for (i = 0; (i < max) && clk_domains_essential[i]; i++) {
- enable_clock_domain(clk_domains_essential[i],
- CD_CLKCTRL_CLKTRCTRL_SW_WKUP);
- }
-
- /* Clock modules that need to be put in HW_AUTO */
- for (i = 0; (i < max) && clk_modules_hw_auto_essential[i]; i++) {
- enable_clock_module(clk_modules_hw_auto_essential[i],
- MODULE_CLKCTRL_MODULEMODE_HW_AUTO,
- wait_for_enable);
- };
-
- /* Clock modules that need to be put in SW_EXPLICIT_EN mode */
- for (i = 0; (i < max) && clk_modules_explicit_en_essential[i]; i++) {
- enable_clock_module(clk_modules_explicit_en_essential[i],
- MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN,
- wait_for_enable);
- };
-
- /* Put the clock domains in HW_AUTO mode now */
- for (i = 0; (i < max) && clk_domains_essential[i]; i++) {
- enable_clock_domain(clk_domains_essential[i],
- CD_CLKCTRL_CLKTRCTRL_HW_AUTO);
- }
-}
-
-/*
- * Enable non-essential clock domains, modules and
- * do some additional special settings needed
- */
-static void enable_non_essential_clocks(void)
-{
- u32 i, max = 100, wait_for_enable = 0;
- u32 *const clk_domains_non_essential[] = {
- &prcm->cm_mpu_m3_clkstctrl,
- &prcm->cm_ivahd_clkstctrl,
- &prcm->cm_dsp_clkstctrl,
- &prcm->cm_dss_clkstctrl,
- &prcm->cm_sgx_clkstctrl,
- &prcm->cm1_abe_clkstctrl,
- &prcm->cm_c2c_clkstctrl,
- &prcm->cm_cam_clkstctrl,
- &prcm->cm_dss_clkstctrl,
- &prcm->cm_sdma_clkstctrl,
- 0
- };
-
- u32 *const clk_modules_hw_auto_non_essential[] = {
- &prcm->cm_mpu_m3_mpu_m3_clkctrl,
- &prcm->cm_ivahd_ivahd_clkctrl,
- &prcm->cm_ivahd_sl2_clkctrl,
- &prcm->cm_dsp_dsp_clkctrl,
- &prcm->cm_l3_2_gpmc_clkctrl,
- &prcm->cm_l3instr_l3_3_clkctrl,
- &prcm->cm_l3instr_l3_instr_clkctrl,
- &prcm->cm_l3instr_intrconn_wp1_clkctrl,
- &prcm->cm_l3init_hsi_clkctrl,
- &prcm->cm_l3init_hsusbtll_clkctrl,
- 0
- };
-
- u32 *const clk_modules_explicit_en_non_essential[] = {
- &prcm->cm1_abe_aess_clkctrl,
- &prcm->cm1_abe_pdm_clkctrl,
- &prcm->cm1_abe_dmic_clkctrl,
- &prcm->cm1_abe_mcasp_clkctrl,
- &prcm->cm1_abe_mcbsp1_clkctrl,
- &prcm->cm1_abe_mcbsp2_clkctrl,
- &prcm->cm1_abe_mcbsp3_clkctrl,
- &prcm->cm1_abe_slimbus_clkctrl,
- &prcm->cm1_abe_timer5_clkctrl,
- &prcm->cm1_abe_timer6_clkctrl,
- &prcm->cm1_abe_timer7_clkctrl,
- &prcm->cm1_abe_timer8_clkctrl,
- &prcm->cm1_abe_wdt3_clkctrl,
- &prcm->cm_l4per_gptimer9_clkctrl,
- &prcm->cm_l4per_gptimer10_clkctrl,
- &prcm->cm_l4per_gptimer11_clkctrl,
- &prcm->cm_l4per_gptimer3_clkctrl,
- &prcm->cm_l4per_gptimer4_clkctrl,
- &prcm->cm_l4per_hdq1w_clkctrl,
- &prcm->cm_l4per_mcbsp4_clkctrl,
- &prcm->cm_l4per_mcspi2_clkctrl,
- &prcm->cm_l4per_mcspi3_clkctrl,
- &prcm->cm_l4per_mcspi4_clkctrl,
- &prcm->cm_l4per_mmcsd3_clkctrl,
- &prcm->cm_l4per_mmcsd4_clkctrl,
- &prcm->cm_l4per_mmcsd5_clkctrl,
- &prcm->cm_l4per_uart1_clkctrl,
- &prcm->cm_l4per_uart2_clkctrl,
- &prcm->cm_l4per_uart4_clkctrl,
- &prcm->cm_wkup_keyboard_clkctrl,
- &prcm->cm_wkup_wdtimer2_clkctrl,
- &prcm->cm_cam_iss_clkctrl,
- &prcm->cm_cam_fdif_clkctrl,
- &prcm->cm_dss_dss_clkctrl,
- &prcm->cm_sgx_sgx_clkctrl,
- &prcm->cm_l3init_hsusbhost_clkctrl,
- &prcm->cm_l3init_fsusb_clkctrl,
- 0
- };
-
- /* Enable optional functional clock for ISS */
- setbits_le32(&prcm->cm_cam_iss_clkctrl, ISS_CLKCTRL_OPTFCLKEN_MASK);
-
- /* Enable all optional functional clocks of DSS */
- setbits_le32(&prcm->cm_dss_dss_clkctrl, DSS_CLKCTRL_OPTFCLKEN_MASK);
-
-
- /* Put the clock domains in SW_WKUP mode */
- for (i = 0; (i < max) && clk_domains_non_essential[i]; i++) {
- enable_clock_domain(clk_domains_non_essential[i],
- CD_CLKCTRL_CLKTRCTRL_SW_WKUP);
- }
-
- /* Clock modules that need to be put in HW_AUTO */
- for (i = 0; (i < max) && clk_modules_hw_auto_non_essential[i]; i++) {
- enable_clock_module(clk_modules_hw_auto_non_essential[i],
- MODULE_CLKCTRL_MODULEMODE_HW_AUTO,
- wait_for_enable);
- };
-
- /* Clock modules that need to be put in SW_EXPLICIT_EN mode */
- for (i = 0; (i < max) && clk_modules_explicit_en_non_essential[i];
- i++) {
- enable_clock_module(clk_modules_explicit_en_non_essential[i],
- MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN,
- wait_for_enable);
- };
-
- /* Put the clock domains in HW_AUTO mode now */
- for (i = 0; (i < max) && clk_domains_non_essential[i]; i++) {
- enable_clock_domain(clk_domains_non_essential[i],
- CD_CLKCTRL_CLKTRCTRL_HW_AUTO);
- }
-
- /* Put camera module in no sleep mode */
- clrsetbits_le32(&prcm->cm_cam_clkstctrl, MODULE_CLKCTRL_MODULEMODE_MASK,
- CD_CLKCTRL_CLKTRCTRL_NO_SLEEP <<
- MODULE_CLKCTRL_MODULEMODE_SHIFT);
-}
-
-
void freq_update_core(void)
{
u32 freq_config1 = 0;
CD_CLKCTRL_CLKTRCTRL_SHIFT);
}
+void setup_sri2c(void)
+{
+ u32 sys_clk_khz, cycles_hi, cycles_low, temp;
+
+ sys_clk_khz = get_sys_clk_freq() / 1000;
+
+ /*
+ * Setup the dedicated I2C controller for Voltage Control
+ * I2C clk - high period 40% low period 60%
+ */
+ cycles_hi = sys_clk_khz * 4 / PRM_VC_I2C_CHANNEL_FREQ_KHZ / 10;
+ cycles_low = sys_clk_khz * 6 / PRM_VC_I2C_CHANNEL_FREQ_KHZ / 10;
+ /* values to be set in register - less by 5 & 7 respectively */
+ cycles_hi -= 5;
+ cycles_low -= 7;
+ temp = (cycles_hi << PRM_VC_CFG_I2C_CLK_SCLH_SHIFT) |
+ (cycles_low << PRM_VC_CFG_I2C_CLK_SCLL_SHIFT);
+ writel(temp, &prcm->prm_vc_cfg_i2c_clk);
+
+ /* Disable high speed mode and all advanced features */
+ writel(0x0, &prcm->prm_vc_cfg_i2c_mode);
+}
+
+void do_enable_clocks(u32 *const *clk_domains,
+ u32 *const *clk_modules_hw_auto,
+ u32 *const *clk_modules_explicit_en,
+ u8 wait_for_enable)
+{
+ u32 i, max = 100;
+
+ /* Put the clock domains in SW_WKUP mode */
+ for (i = 0; (i < max) && clk_domains[i]; i++) {
+ enable_clock_domain(clk_domains[i],
+ CD_CLKCTRL_CLKTRCTRL_SW_WKUP);
+ }
+
+ /* Clock modules that need to be put in HW_AUTO */
+ for (i = 0; (i < max) && clk_modules_hw_auto[i]; i++) {
+ enable_clock_module(clk_modules_hw_auto[i],
+ MODULE_CLKCTRL_MODULEMODE_HW_AUTO,
+ wait_for_enable);
+ };
+
+ /* Clock modules that need to be put in SW_EXPLICIT_EN mode */
+ for (i = 0; (i < max) && clk_modules_explicit_en[i]; i++) {
+ enable_clock_module(clk_modules_explicit_en[i],
+ MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN,
+ wait_for_enable);
+ };
+
+ /* Put the clock domains in HW_AUTO mode now */
+ for (i = 0; (i < max) && clk_domains[i]; i++) {
+ enable_clock_domain(clk_domains[i],
+ CD_CLKCTRL_CLKTRCTRL_HW_AUTO);
+ }
+}
+
void prcm_init(void)
{
- switch (omap4_hw_init_context()) {
+ switch (omap_hw_init_context()) {
case OMAP_INIT_CONTEXT_SPL:
case OMAP_INIT_CONTEXT_UBOOT_FROM_NOR:
case OMAP_INIT_CONTEXT_UBOOT_AFTER_CH:
enable_basic_clocks();
scale_vcores();
setup_dplls();
+#ifdef CONFIG_SYS_CLOCKS_ENABLE_ALL
setup_non_essential_dplls();
enable_non_essential_clocks();
+#endif
break;
default:
break;
}
+
+ if (OMAP_INIT_CONTEXT_SPL != omap_hw_init_context())
+ enable_basic_uboot_clocks();
}
projects / oweals / u-boot.git / blobdiff