+++ /dev/null
-/*
- *
- * Functions for omap5 based boards.
- *
- * (C) Copyright 2011
- * Texas Instruments, <www.ti.com>
- *
- * Author :
- * Aneesh V <aneesh@ti.com>
- * Steve Sakoman <steve@sakoman.com>
- * Sricharan <r.sricharan@ti.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-#include <common.h>
-#include <asm/armv7.h>
-#include <asm/arch/cpu.h>
-#include <asm/arch/sys_proto.h>
-#include <asm/arch/clock.h>
-#include <linux/sizes.h>
-#include <asm/utils.h>
-#include <asm/arch/gpio.h>
-#include <asm/emif.h>
-#include <asm/omap_common.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-u32 *const omap_si_rev = (u32 *)OMAP_SRAM_SCRATCH_OMAP_REV;
-
-#ifndef CONFIG_DM_GPIO
-static struct gpio_bank gpio_bank_54xx[8] = {
- { (void *)OMAP54XX_GPIO1_BASE },
- { (void *)OMAP54XX_GPIO2_BASE },
- { (void *)OMAP54XX_GPIO3_BASE },
- { (void *)OMAP54XX_GPIO4_BASE },
- { (void *)OMAP54XX_GPIO5_BASE },
- { (void *)OMAP54XX_GPIO6_BASE },
- { (void *)OMAP54XX_GPIO7_BASE },
- { (void *)OMAP54XX_GPIO8_BASE },
-};
-
-const struct gpio_bank *const omap_gpio_bank = gpio_bank_54xx;
-#endif
-
-void do_set_mux32(u32 base, struct pad_conf_entry const *array, int size)
-{
- int i;
- struct pad_conf_entry *pad = (struct pad_conf_entry *)array;
-
- for (i = 0; i < size; i++, pad++)
- writel(pad->val, base + pad->offset);
-}
-
-#ifdef CONFIG_SPL_BUILD
-/* LPDDR2 specific IO settings */
-static void io_settings_lpddr2(void)
-{
- const struct ctrl_ioregs *ioregs;
-
- get_ioregs(&ioregs);
- writel(ioregs->ctrl_ddrch, (*ctrl)->control_ddrch1_0);
- writel(ioregs->ctrl_ddrch, (*ctrl)->control_ddrch1_1);
- writel(ioregs->ctrl_ddrch, (*ctrl)->control_ddrch2_0);
- writel(ioregs->ctrl_ddrch, (*ctrl)->control_ddrch2_1);
- writel(ioregs->ctrl_lpddr2ch, (*ctrl)->control_lpddr2ch1_0);
- writel(ioregs->ctrl_lpddr2ch, (*ctrl)->control_lpddr2ch1_1);
- writel(ioregs->ctrl_ddrio_0, (*ctrl)->control_ddrio_0);
- writel(ioregs->ctrl_ddrio_1, (*ctrl)->control_ddrio_1);
- writel(ioregs->ctrl_ddrio_2, (*ctrl)->control_ddrio_2);
-}
-
-/* DDR3 specific IO settings */
-static void io_settings_ddr3(void)
-{
- u32 io_settings = 0;
- const struct ctrl_ioregs *ioregs;
-
- get_ioregs(&ioregs);
- writel(ioregs->ctrl_ddr3ch, (*ctrl)->control_ddr3ch1_0);
- writel(ioregs->ctrl_ddrch, (*ctrl)->control_ddrch1_0);
- writel(ioregs->ctrl_ddrch, (*ctrl)->control_ddrch1_1);
-
- writel(ioregs->ctrl_ddr3ch, (*ctrl)->control_ddr3ch2_0);
- writel(ioregs->ctrl_ddrch, (*ctrl)->control_ddrch2_0);
- writel(ioregs->ctrl_ddrch, (*ctrl)->control_ddrch2_1);
-
- writel(ioregs->ctrl_ddrio_0, (*ctrl)->control_ddrio_0);
- writel(ioregs->ctrl_ddrio_1, (*ctrl)->control_ddrio_1);
-
- if (!is_dra7xx()) {
- writel(ioregs->ctrl_ddrio_2, (*ctrl)->control_ddrio_2);
- writel(ioregs->ctrl_lpddr2ch, (*ctrl)->control_lpddr2ch1_1);
- }
-
- /* omap5432 does not use lpddr2 */
- writel(ioregs->ctrl_lpddr2ch, (*ctrl)->control_lpddr2ch1_0);
-
- writel(ioregs->ctrl_emif_sdram_config_ext,
- (*ctrl)->control_emif1_sdram_config_ext);
- if (!is_dra72x())
- writel(ioregs->ctrl_emif_sdram_config_ext,
- (*ctrl)->control_emif2_sdram_config_ext);
-
- if (is_omap54xx()) {
- /* Disable DLL select */
- io_settings = (readl((*ctrl)->control_port_emif1_sdram_config)
- & 0xFFEFFFFF);
- writel(io_settings,
- (*ctrl)->control_port_emif1_sdram_config);
-
- io_settings = (readl((*ctrl)->control_port_emif2_sdram_config)
- & 0xFFEFFFFF);
- writel(io_settings,
- (*ctrl)->control_port_emif2_sdram_config);
- } else {
- writel(ioregs->ctrl_ddr_ctrl_ext_0,
- (*ctrl)->control_ddr_control_ext_0);
- }
-}
-
-/*
- * Some tuning of IOs for optimal power and performance
- */
-void do_io_settings(void)
-{
- u32 io_settings = 0, mask = 0;
- struct emif_reg_struct *emif = (struct emif_reg_struct *)EMIF1_BASE;
-
- /* Impedance settings EMMC, C2C 1,2, hsi2 */
- mask = (ds_mask << 2) | (ds_mask << 8) |
- (ds_mask << 16) | (ds_mask << 18);
- io_settings = readl((*ctrl)->control_smart1io_padconf_0) &
- (~mask);
- io_settings |= (ds_60_ohm << 8) | (ds_45_ohm << 16) |
- (ds_45_ohm << 18) | (ds_60_ohm << 2);
- writel(io_settings, (*ctrl)->control_smart1io_padconf_0);
-
- /* Impedance settings Mcspi2 */
- mask = (ds_mask << 30);
- io_settings = readl((*ctrl)->control_smart1io_padconf_1) &
- (~mask);
- io_settings |= (ds_60_ohm << 30);
- writel(io_settings, (*ctrl)->control_smart1io_padconf_1);
-
- /* Impedance settings C2C 3,4 */
- mask = (ds_mask << 14) | (ds_mask << 16);
- io_settings = readl((*ctrl)->control_smart1io_padconf_2) &
- (~mask);
- io_settings |= (ds_45_ohm << 14) | (ds_45_ohm << 16);
- writel(io_settings, (*ctrl)->control_smart1io_padconf_2);
-
- /* Slew rate settings EMMC, C2C 1,2 */
- mask = (sc_mask << 8) | (sc_mask << 16) | (sc_mask << 18);
- io_settings = readl((*ctrl)->control_smart2io_padconf_0) &
- (~mask);
- io_settings |= (sc_fast << 8) | (sc_na << 16) | (sc_na << 18);
- writel(io_settings, (*ctrl)->control_smart2io_padconf_0);
-
- /* Slew rate settings hsi2, Mcspi2 */
- mask = (sc_mask << 24) | (sc_mask << 28);
- io_settings = readl((*ctrl)->control_smart2io_padconf_1) &
- (~mask);
- io_settings |= (sc_fast << 28) | (sc_fast << 24);
- writel(io_settings, (*ctrl)->control_smart2io_padconf_1);
-
- /* Slew rate settings C2C 3,4 */
- mask = (sc_mask << 16) | (sc_mask << 18);
- io_settings = readl((*ctrl)->control_smart2io_padconf_2) &
- (~mask);
- io_settings |= (sc_na << 16) | (sc_na << 18);
- writel(io_settings, (*ctrl)->control_smart2io_padconf_2);
-
- /* impedance and slew rate settings for usb */
- mask = (usb_i_mask << 29) | (usb_i_mask << 26) | (usb_i_mask << 23) |
- (usb_i_mask << 20) | (usb_i_mask << 17) | (usb_i_mask << 14);
- io_settings = readl((*ctrl)->control_smart3io_padconf_1) &
- (~mask);
- io_settings |= (ds_60_ohm << 29) | (ds_60_ohm << 26) |
- (ds_60_ohm << 23) | (sc_fast << 20) |
- (sc_fast << 17) | (sc_fast << 14);
- writel(io_settings, (*ctrl)->control_smart3io_padconf_1);
-
- if (emif_sdram_type(emif->emif_sdram_config) == EMIF_SDRAM_TYPE_LPDDR2)
- io_settings_lpddr2();
- else
- io_settings_ddr3();
-}
-
-static const struct srcomp_params srcomp_parameters[NUM_SYS_CLKS] = {
- {0x45, 0x1}, /* 12 MHz */
- {-1, -1}, /* 13 MHz */
- {0x63, 0x2}, /* 16.8 MHz */
- {0x57, 0x2}, /* 19.2 MHz */
- {0x20, 0x1}, /* 26 MHz */
- {-1, -1}, /* 27 MHz */
- {0x41, 0x3} /* 38.4 MHz */
-};
-
-void srcomp_enable(void)
-{
- u32 srcomp_value, mul_factor, div_factor, clk_val, i;
- u32 sysclk_ind = get_sys_clk_index();
- u32 omap_rev = omap_revision();
-
- if (!is_omap54xx())
- return;
-
- mul_factor = srcomp_parameters[sysclk_ind].multiply_factor;
- div_factor = srcomp_parameters[sysclk_ind].divide_factor;
-
- for (i = 0; i < 4; i++) {
- srcomp_value = readl((*ctrl)->control_srcomp_north_side + i*4);
- srcomp_value &=
- ~(MULTIPLY_FACTOR_XS_MASK | DIVIDE_FACTOR_XS_MASK);
- srcomp_value |= (mul_factor << MULTIPLY_FACTOR_XS_SHIFT) |
- (div_factor << DIVIDE_FACTOR_XS_SHIFT);
- writel(srcomp_value, (*ctrl)->control_srcomp_north_side + i*4);
- }
-
- if ((omap_rev == OMAP5430_ES1_0) || (omap_rev == OMAP5432_ES1_0)) {
- clk_val = readl((*prcm)->cm_coreaon_io_srcomp_clkctrl);
- clk_val |= OPTFCLKEN_SRCOMP_FCLK_MASK;
- writel(clk_val, (*prcm)->cm_coreaon_io_srcomp_clkctrl);
-
- for (i = 0; i < 4; i++) {
- srcomp_value =
- readl((*ctrl)->control_srcomp_north_side + i*4);
- srcomp_value &= ~PWRDWN_XS_MASK;
- writel(srcomp_value,
- (*ctrl)->control_srcomp_north_side + i*4);
-
- while (((readl((*ctrl)->control_srcomp_north_side + i*4)
- & SRCODE_READ_XS_MASK) >>
- SRCODE_READ_XS_SHIFT) == 0)
- ;
-
- srcomp_value =
- readl((*ctrl)->control_srcomp_north_side + i*4);
- srcomp_value &= ~OVERRIDE_XS_MASK;
- writel(srcomp_value,
- (*ctrl)->control_srcomp_north_side + i*4);
- }
- } else {
- srcomp_value = readl((*ctrl)->control_srcomp_east_side_wkup);
- srcomp_value &= ~(MULTIPLY_FACTOR_XS_MASK |
- DIVIDE_FACTOR_XS_MASK);
- srcomp_value |= (mul_factor << MULTIPLY_FACTOR_XS_SHIFT) |
- (div_factor << DIVIDE_FACTOR_XS_SHIFT);
- writel(srcomp_value, (*ctrl)->control_srcomp_east_side_wkup);
-
- for (i = 0; i < 4; i++) {
- srcomp_value =
- readl((*ctrl)->control_srcomp_north_side + i*4);
- srcomp_value |= SRCODE_OVERRIDE_SEL_XS_MASK;
- writel(srcomp_value,
- (*ctrl)->control_srcomp_north_side + i*4);
-
- srcomp_value =
- readl((*ctrl)->control_srcomp_north_side + i*4);
- srcomp_value &= ~OVERRIDE_XS_MASK;
- writel(srcomp_value,
- (*ctrl)->control_srcomp_north_side + i*4);
- }
-
- srcomp_value =
- readl((*ctrl)->control_srcomp_east_side_wkup);
- srcomp_value |= SRCODE_OVERRIDE_SEL_XS_MASK;
- writel(srcomp_value, (*ctrl)->control_srcomp_east_side_wkup);
-
- srcomp_value =
- readl((*ctrl)->control_srcomp_east_side_wkup);
- srcomp_value &= ~OVERRIDE_XS_MASK;
- writel(srcomp_value, (*ctrl)->control_srcomp_east_side_wkup);
-
- clk_val = readl((*prcm)->cm_coreaon_io_srcomp_clkctrl);
- clk_val |= OPTFCLKEN_SRCOMP_FCLK_MASK;
- writel(clk_val, (*prcm)->cm_coreaon_io_srcomp_clkctrl);
-
- clk_val = readl((*prcm)->cm_wkupaon_io_srcomp_clkctrl);
- clk_val |= OPTFCLKEN_SRCOMP_FCLK_MASK;
- writel(clk_val, (*prcm)->cm_wkupaon_io_srcomp_clkctrl);
-
- for (i = 0; i < 4; i++) {
- while (((readl((*ctrl)->control_srcomp_north_side + i*4)
- & SRCODE_READ_XS_MASK) >>
- SRCODE_READ_XS_SHIFT) == 0)
- ;
-
- srcomp_value =
- readl((*ctrl)->control_srcomp_north_side + i*4);
- srcomp_value &= ~SRCODE_OVERRIDE_SEL_XS_MASK;
- writel(srcomp_value,
- (*ctrl)->control_srcomp_north_side + i*4);
- }
-
- while (((readl((*ctrl)->control_srcomp_east_side_wkup) &
- SRCODE_READ_XS_MASK) >> SRCODE_READ_XS_SHIFT) == 0)
- ;
-
- srcomp_value =
- readl((*ctrl)->control_srcomp_east_side_wkup);
- srcomp_value &= ~SRCODE_OVERRIDE_SEL_XS_MASK;
- writel(srcomp_value, (*ctrl)->control_srcomp_east_side_wkup);
- }
-}
-#endif
-
-void config_data_eye_leveling_samples(u32 emif_base)
-{
- const struct ctrl_ioregs *ioregs;
-
- get_ioregs(&ioregs);
-
- /*EMIF_SDRAM_CONFIG_EXT-Read data eye leveling no of samples =4*/
- if (emif_base == EMIF1_BASE)
- writel(ioregs->ctrl_emif_sdram_config_ext_final,
- (*ctrl)->control_emif1_sdram_config_ext);
- else if (emif_base == EMIF2_BASE)
- writel(ioregs->ctrl_emif_sdram_config_ext_final,
- (*ctrl)->control_emif2_sdram_config_ext);
-}
-
-void init_cpu_configuration(void)
-{
- u32 l2actlr;
-
- asm volatile("mrc p15, 1, %0, c15, c0, 0" : "=r"(l2actlr));
- /*
- * L2ACTLR: Ensure to enable the following:
- * 3: Disable clean/evict push to external
- * 4: Disable WriteUnique and WriteLineUnique transactions from master
- * 8: Disable DVM/CMO message broadcast
- */
- l2actlr |= 0x118;
- omap_smc1(OMAP5_SERVICE_L2ACTLR_SET, l2actlr);
-}
-
-void init_omap_revision(void)
-{
- /*
- * For some of the ES2/ES1 boards ID_CODE is not reliable:
- * Also, ES1 and ES2 have different ARM revisions
- * So use ARM revision for identification
- */
- unsigned int rev = cortex_rev();
-
- switch (readl(CONTROL_ID_CODE)) {
- case OMAP5430_CONTROL_ID_CODE_ES1_0:
- *omap_si_rev = OMAP5430_ES1_0;
- if (rev == MIDR_CORTEX_A15_R2P2)
- *omap_si_rev = OMAP5430_ES2_0;
- break;
- case OMAP5432_CONTROL_ID_CODE_ES1_0:
- *omap_si_rev = OMAP5432_ES1_0;
- if (rev == MIDR_CORTEX_A15_R2P2)
- *omap_si_rev = OMAP5432_ES2_0;
- break;
- case OMAP5430_CONTROL_ID_CODE_ES2_0:
- *omap_si_rev = OMAP5430_ES2_0;
- break;
- case OMAP5432_CONTROL_ID_CODE_ES2_0:
- *omap_si_rev = OMAP5432_ES2_0;
- break;
- case DRA752_CONTROL_ID_CODE_ES1_0:
- *omap_si_rev = DRA752_ES1_0;
- break;
- case DRA752_CONTROL_ID_CODE_ES1_1:
- *omap_si_rev = DRA752_ES1_1;
- break;
- case DRA752_CONTROL_ID_CODE_ES2_0:
- *omap_si_rev = DRA752_ES2_0;
- break;
- case DRA722_CONTROL_ID_CODE_ES1_0:
- *omap_si_rev = DRA722_ES1_0;
- break;
- case DRA722_CONTROL_ID_CODE_ES2_0:
- *omap_si_rev = DRA722_ES2_0;
- break;
- default:
- *omap_si_rev = OMAP5430_SILICON_ID_INVALID;
- }
- init_cpu_configuration();
-}
-
-void omap_die_id(unsigned int *die_id)
-{
- die_id[0] = readl((*ctrl)->control_std_fuse_die_id_0);
- die_id[1] = readl((*ctrl)->control_std_fuse_die_id_1);
- die_id[2] = readl((*ctrl)->control_std_fuse_die_id_2);
- die_id[3] = readl((*ctrl)->control_std_fuse_die_id_3);
-}
-
-void reset_cpu(ulong ignored)
-{
- u32 omap_rev = omap_revision();
-
- /*
- * WARM reset is not functional in case of OMAP5430 ES1.0 soc.
- * So use cold reset in case instead.
- */
- if (omap_rev == OMAP5430_ES1_0)
- writel(PRM_RSTCTRL_RESET << 0x1, (*prcm)->prm_rstctrl);
- else
- writel(PRM_RSTCTRL_RESET, (*prcm)->prm_rstctrl);
-}
-
-u32 warm_reset(void)
-{
- return readl((*prcm)->prm_rstst) & PRM_RSTST_WARM_RESET_MASK;
-}
-
-void setup_warmreset_time(void)
-{
- u32 rst_time, rst_val;
-
-#ifndef CONFIG_OMAP_PLATFORM_RESET_TIME_MAX_USEC
- rst_time = CONFIG_DEFAULT_OMAP_RESET_TIME_MAX_USEC;
-#else
- rst_time = CONFIG_OMAP_PLATFORM_RESET_TIME_MAX_USEC;
-#endif
- rst_time = usec_to_32k(rst_time) << RSTTIME1_SHIFT;
-
- if (rst_time > RSTTIME1_MASK)
- rst_time = RSTTIME1_MASK;
-
- rst_val = readl((*prcm)->prm_rsttime) & ~RSTTIME1_MASK;
- rst_val |= rst_time;
- writel(rst_val, (*prcm)->prm_rsttime);
-}
-
-void v7_arch_cp15_set_l2aux_ctrl(u32 l2auxctrl, u32 cpu_midr,
- u32 cpu_rev_comb, u32 cpu_variant,
- u32 cpu_rev)
-{
- omap_smc1(OMAP5_SERVICE_L2ACTLR_SET, l2auxctrl);
-}
-
-void v7_arch_cp15_set_acr(u32 acr, u32 cpu_midr, u32 cpu_rev_comb,
- u32 cpu_variant, u32 cpu_rev)
-{
-
-#ifdef CONFIG_ARM_ERRATA_801819
- /*
- * DRA72x processors are uniprocessors and DONOT have
- * ACP (Accelerator Coherency Port) hooked to ACE (AXI Coherency
- * Extensions) Hence the erratum workaround is not applicable for
- * DRA72x processors.
- */
- if (is_dra72x())
- acr &= ~((0x3 << 23) | (0x3 << 25));
-#endif
- omap_smc1(OMAP5_SERVICE_ACR_SET, acr);
-}
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