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-rw-r--r--arch/arm/cpu/armv7/omap5/clocks.c432
1 files changed, 432 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/omap5/clocks.c b/arch/arm/cpu/armv7/omap5/clocks.c
new file mode 100644
index 0000000..dd882a2
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap5/clocks.c
@@ -0,0 +1,432 @@
+/*
+ *
+ * Clock initialization for OMAP5
+ *
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ *
+ * Aneesh V <aneesh@ti.com>
+ * Sricharan R <r.sricharan@ti.com>
+ *
+ * Based on previous work by:
+ * Santosh Shilimkar <santosh.shilimkar@ti.com>
+ * Rajendra Nayak <rnayak@ti.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+#include <asm/omap_common.h>
+#include <asm/arch/clocks.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/utils.h>
+#include <asm/omap_gpio.h>
+
+#ifndef CONFIG_SPL_BUILD
+/*
+ * printing to console doesn't work unless
+ * this code is executed from SPL
+ */
+#define printf(fmt, args...)
+#define puts(s)
+#endif
+
+struct omap5_prcm_regs *const prcm = (struct omap5_prcm_regs *)0x4A004100;
+
+const u32 sys_clk_array[8] = {
+ 12000000, /* 12 MHz */
+ 0, /* NA */
+ 16800000, /* 16.8 MHz */
+ 19200000, /* 19.2 MHz */
+ 26000000, /* 26 MHz */
+ 0, /* NA */
+ 38400000, /* 38.4 MHz */
+};
+
+static const struct dpll_params mpu_dpll_params_1_5ghz[NUM_SYS_CLKS] = {
+ {125, 0, 1, -1, -1, -1, -1, -1, -1, -1}, /* 12 MHz */
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */
+ {625, 6, 1, -1, -1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
+ {625, 7, 1, -1, -1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
+ {750, 12, 1, -1, -1, -1, -1, -1, -1, -1}, /* 26 MHz */
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */
+ {625, 15, 1, -1, -1, -1, -1, -1, -1, -1} /* 38.4 MHz */
+};
+
+static const struct dpll_params mpu_dpll_params_2ghz[NUM_SYS_CLKS] = {
+ {500, 2, 1, -1, -1, -1, -1, -1, -1, -1}, /* 12 MHz */
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */
+ {2024, 16, 1, -1, -1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
+ {625, 5, 1, -1, -1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
+ {1000, 12, 1, -1, -1, -1, -1, -1, -1, -1}, /* 26 MHz */
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */
+ {625, 11, 1, -1, -1, -1, -1, -1, -1, -1} /* 38.4 MHz */
+};
+
+static const struct dpll_params mpu_dpll_params_1100mhz[NUM_SYS_CLKS] = {
+ {275, 2, 1, -1, -1, -1, -1, -1, -1, -1}, /* 12 MHz */
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */
+ {1375, 20, 1, -1, -1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
+ {1375, 23, 1, -1, -1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
+ {550, 12, 1, -1, -1, -1, -1, -1, -1, -1}, /* 26 MHz */
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */
+ {1375, 47, 1, -1, -1, -1, -1, -1, -1, -1} /* 38.4 MHz */
+};
+
+static const struct dpll_params mpu_dpll_params_550mhz[NUM_SYS_CLKS] = {
+ {275, 2, 2, -1, -1, -1, -1, -1, -1, -1}, /* 12 MHz */
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */
+ {1375, 20, 2, -1, -1, -1, -1, -1, -1, -1}, /* 16.8 MHz */
+ {1375, 23, 2, -1, -1, -1, -1, -1, -1, -1}, /* 19.2 MHz */
+ {550, 12, 2, -1, -1, -1, -1, -1, -1, -1}, /* 26 MHz */
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */
+ {1375, 47, 2, -1, -1, -1, -1, -1, -1, -1} /* 38.4 MHz */
+};
+
+static const struct dpll_params
+ core_dpll_params_2128mhz_ddr532[NUM_SYS_CLKS] = {
+ {266, 2, 1, 5, 8, 4, 62, 5, 5, 7}, /* 12 MHz */
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */
+ {570, 8, 1, 5, 8, 4, 62, 5, 5, 7}, /* 16.8 MHz */
+ {665, 11, 1, 5, 8, 4, 62, 5, 5, 7}, /* 19.2 MHz */
+ {532, 12, 1, 5, 8, 4, 62, 5, 5, 7}, /* 26 MHz */
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */
+ {665, 23, 1, 5, 8, 4, 62, 5, 5, 7} /* 38.4 MHz */
+};
+
+static const struct dpll_params
+ core_dpll_params_2128mhz_ddr266[NUM_SYS_CLKS] = {
+ {266, 2, 2, 5, 8, 4, 62, 5, 5, 7}, /* 12 MHz */
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */
+ {570, 8, 2, 5, 8, 4, 62, 5, 5, 7}, /* 16.8 MHz */
+ {665, 11, 2, 5, 8, 4, 62, 5, 5, 7}, /* 19.2 MHz */
+ {532, 12, 2, 5, 8, 4, 62, 5, 5, 7}, /* 26 MHz */
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */
+ {665, 23, 2, 5, 8, 4, 62, 5, 5, 7} /* 38.4 MHz */
+};
+
+static const struct dpll_params per_dpll_params_768mhz[NUM_SYS_CLKS] = {
+ {32, 0, 4, 3, 6, 4, -1, 2, -1, -1}, /* 12 MHz */
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 13 MHz */
+ {160, 6, 4, 3, 6, 4, -1, 2, -1, -1}, /* 16.8 MHz */
+ {20, 0, 4, 3, 6, 4, -1, 2, -1, -1}, /* 19.2 MHz */
+ {192, 12, 4, 3, 6, 4, -1, 2, -1, -1}, /* 26 MHz */
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 MHz */
+ {10, 0, 4, 3, 6, 4, -1, 2, -1, -1} /* 38.4 MHz */
+};
+
+static const struct dpll_params iva_dpll_params_2330mhz[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 */
+};
+
+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->h11 >= 0)
+ writel(params->h11, &dpll_regs->cm_div_h11_dpll);
+ if (params->h12 >= 0)
+ writel(params->h12, &dpll_regs->cm_div_h12_dpll);
+ if (params->h13 >= 0)
+ writel(params->h13, &dpll_regs->cm_div_h13_dpll);
+ if (params->h14 >= 0)
+ writel(params->h14, &dpll_regs->cm_div_h14_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);
+}
+
+const struct dpll_params *get_mpu_dpll_params(void)
+{
+ u32 sysclk_ind = get_sys_clk_index();
+ return &mpu_dpll_params_1100mhz[sysclk_ind];
+}
+
+const struct dpll_params *get_core_dpll_params(void)
+{
+ u32 sysclk_ind = get_sys_clk_index();
+
+ /* Configuring the DDR to be at 532mhz */
+ return &core_dpll_params_2128mhz_ddr266[sysclk_ind];
+
+}
+
+const struct dpll_params *get_per_dpll_params(void)
+{
+ u32 sysclk_ind = get_sys_clk_index();
+ return &per_dpll_params_768mhz[sysclk_ind];
+}
+
+const struct dpll_params *get_iva_dpll_params(void)
+{
+ u32 sysclk_ind = get_sys_clk_index();
+ return &iva_dpll_params_2330mhz[sysclk_ind];
+}
+
+const struct dpll_params *get_usb_dpll_params(void)
+{
+ u32 sysclk_ind = get_sys_clk_index();
+ return &usb_dpll_params_1920mhz[sysclk_ind];
+}
+
+const struct dpll_params *get_abe_dpll_params(void)
+{
+#ifdef CONFIG_SYS_OMAP_ABE_SYSCK
+ u32 sysclk_ind = get_sys_clk_index();
+ return &abe_dpll_params_sysclk_196608khz[sysclk_ind];
+#else
+ return &abe_dpll_params_32k_196608khz;
+#endif
+}
+
+/*
+ * 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(void)
+{
+ u32 volt;
+
+ setup_sri2c();
+
+ /* Enable 1.22V from TPS for vdd_mpu */
+ volt = 1220;
+ do_scale_tps62361(TPS62361_REG_ADDR_SET1, volt);
+
+ /* VCORE 1 - for vdd_core */
+ volt = 1000;
+ do_scale_vcore(SMPS_REG_ADDR_VCORE1, volt);
+
+ /* VCORE 2 - for vdd_MM */
+ volt = 1125;
+ do_scale_vcore(SMPS_REG_ADDR_VCORE2, volt);
+}
+
+/*
+ * Enable essential clock domains, modules and
+ * do some additional special settings needed
+ */
+void enable_basic_clocks(void)
+{
+ 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_memif_emif_1_clkctrl,
+ &prcm->cm_memif_emif_2_clkctrl,
+ &prcm->cm_l4cfg_l4_cfg_clkctrl,
+ &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,
+ 0
+ };
+
+ u32 *const clk_modules_explicit_en_essential[] = {
+ &prcm->cm_wkup_gptimer1_clkctrl,
+ &prcm->cm_l3init_hsmmc1_clkctrl,
+ &prcm->cm_l3init_hsmmc2_clkctrl,
+ &prcm->cm_l4per_gptimer2_clkctrl,
+ &prcm->cm_wkup_wdtimer2_clkctrl,
+ &prcm->cm_l4per_uart3_clkctrl,
+ &prcm->cm_l4per_i2c1_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);
+
+ do_enable_clocks(clk_domains_essential,
+ clk_modules_hw_auto_essential,
+ clk_modules_explicit_en_essential,
+ 1);
+}
+
+void enable_basic_uboot_clocks(void)
+{
+ u32 *const clk_domains_essential[] = {
+ 0
+ };
+
+ u32 *const clk_modules_hw_auto_essential[] = {
+ 0
+ };
+
+ u32 *const clk_modules_explicit_en_essential[] = {
+ &prcm->cm_l4per_mcspi1_clkctrl,
+ &prcm->cm_l4per_i2c2_clkctrl,
+ &prcm->cm_l4per_i2c3_clkctrl,
+ &prcm->cm_l4per_i2c4_clkctrl,
+ 0
+ };
+
+ do_enable_clocks(clk_domains_essential,
+ clk_modules_hw_auto_essential,
+ clk_modules_explicit_en_essential,
+ 1);
+}
+
+/*
+ * Enable non-essential clock domains, modules and
+ * do some additional special settings needed
+ */
+void enable_non_essential_clocks(void)
+{
+ 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_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);
+
+ do_enable_clocks(clk_domains_non_essential,
+ clk_modules_hw_auto_non_essential,
+ clk_modules_explicit_en_non_essential,
+ 0);
+
+ /* 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);
+}
generated by cgit v1.1 at 2024-07-15 22:03:39 +0000