static int exynos_cpufreq_probe(struct platform_device *pdev)
{
int ret = -EINVAL;
exynos_info = kzalloc(sizeof(*exynos_info), GFP_KERNEL);
if (!exynos_info)
return -ENOMEM;
exynos_info->dev = &pdev->dev;
if (of_machine_is_compatible("samsung,exynos4210")) {
exynos_info->type = EXYNOS_SOC_4210;
ret = exynos4210_cpufreq_init(exynos_info);
} else if (of_machine_is_compatible("samsung,exynos4212")) {
exynos_info->type = EXYNOS_SOC_4212;
ret = exynos4x12_cpufreq_init(exynos_info);
} else if (of_machine_is_compatible("samsung,exynos4412")) {
exynos_info->type = EXYNOS_SOC_4412;
ret = exynos4x12_cpufreq_init(exynos_info);
} else if (of_machine_is_compatible("samsung,exynos5250")) {
exynos_info->type = EXYNOS_SOC_5250;
ret = exynos5250_cpufreq_init(exynos_info);
} else {
pr_err("%s: Unknown SoC type\n", __func__);
return -ENODEV;
}
if (ret)
goto err_vdd_arm;
if (exynos_info->set_freq == NULL) {
dev_err(&pdev->dev, "No set_freq function (ERR)\n");
goto err_vdd_arm;
}
arm_regulator = regulator_get(NULL, "vdd_arm");
if (IS_ERR(arm_regulator)) {
dev_err(&pdev->dev, "failed to get resource vdd_arm\n");
goto err_vdd_arm;
}
/* Done here as we want to capture boot frequency */
locking_frequency = clk_get_rate(exynos_info->cpu_clk) / 1000;
if (!cpufreq_register_driver(&exynos_driver))
return 0;
dev_err(&pdev->dev, "failed to register cpufreq driver\n");
regulator_put(arm_regulator);
err_vdd_arm:
kfree(exynos_info);
return -EINVAL;
}
static int exynos_cpufreq_probe(struct platform_device *pdev)
{
int ret = -EINVAL;
exynos_info = kzalloc(sizeof(*exynos_info), GFP_KERNEL);
if (!exynos_info)
return -ENOMEM;
exynos_info->dev = &pdev->dev;
if (soc_is_exynos4210())
ret = exynos4210_cpufreq_init(exynos_info);
else if (soc_is_exynos4212() || soc_is_exynos4412())
ret = exynos4x12_cpufreq_init(exynos_info);
else if (soc_is_exynos5250())
ret = exynos5250_cpufreq_init(exynos_info);
else
return 0;
if (ret)
goto err_vdd_arm;
if (exynos_info->set_freq == NULL) {
dev_err(&pdev->dev, "No set_freq function (ERR)\n");
goto err_vdd_arm;
}
arm_regulator = regulator_get(NULL, "vdd_arm");
if (IS_ERR(arm_regulator)) {
dev_err(&pdev->dev, "failed to get resource vdd_arm\n");
goto err_vdd_arm;
}
/* Done here as we want to capture boot frequency */
locking_frequency = clk_get_rate(exynos_info->cpu_clk) / 1000;
if (!cpufreq_register_driver(&exynos_driver))
return 0;
dev_err(&pdev->dev, "failed to register cpufreq driver\n");
regulator_put(arm_regulator);
err_vdd_arm:
kfree(exynos_info);
return -EINVAL;
}
static int exynos_cpufreq_probe(struct platform_device *pdev)
{
struct device_node *cpu0;
int ret = -EINVAL;
exynos_info = kzalloc(sizeof(*exynos_info), GFP_KERNEL);
if (!exynos_info)
return -ENOMEM;
exynos_info->dev = &pdev->dev;
if (of_machine_is_compatible("samsung,exynos4212")) {
exynos_info->type = EXYNOS_SOC_4212;
ret = exynos4x12_cpufreq_init(exynos_info);
} else if (of_machine_is_compatible("samsung,exynos4412")) {
exynos_info->type = EXYNOS_SOC_4412;
ret = exynos4x12_cpufreq_init(exynos_info);
} else if (of_machine_is_compatible("samsung,exynos5250")) {
exynos_info->type = EXYNOS_SOC_5250;
ret = exynos5250_cpufreq_init(exynos_info);
} else {
pr_err("%s: Unknown SoC type\n", __func__);
return -ENODEV;
}
if (ret)
goto err_vdd_arm;
if (exynos_info->set_freq == NULL) {
dev_err(&pdev->dev, "No set_freq function (ERR)\n");
goto err_vdd_arm;
}
arm_regulator = regulator_get(NULL, "vdd_arm");
if (IS_ERR(arm_regulator)) {
dev_err(&pdev->dev, "failed to get resource vdd_arm\n");
goto err_vdd_arm;
}
/* Done here as we want to capture boot frequency */
locking_frequency = clk_get_rate(exynos_info->cpu_clk) / 1000;
ret = cpufreq_register_driver(&exynos_driver);
if (ret)
goto err_cpufreq_reg;
cpu0 = of_get_cpu_node(0, NULL);
if (!cpu0) {
pr_err("failed to find cpu0 node\n");
return 0;
}
if (of_find_property(cpu0, "#cooling-cells", NULL)) {
cdev = of_cpufreq_cooling_register(cpu0,
cpu_present_mask);
if (IS_ERR(cdev))
pr_err("running cpufreq without cooling device: %ld\n",
PTR_ERR(cdev));
}
return 0;
err_cpufreq_reg:
dev_err(&pdev->dev, "failed to register cpufreq driver\n");
regulator_put(arm_regulator);
err_vdd_arm:
kfree(exynos_info);
return -EINVAL;
}
int board_init(void)
{
struct fdt_memory mem_config;
/* Record the time we spent before SPL */
bootstage_add_record(BOOTSTAGE_ID_START_SPL, "spl_start", 0,
CONFIG_SPL_TIME_US);
bootstage_mark_name(BOOTSTAGE_ID_BOARD_INIT, "board_init");
if (fdtdec_decode_memory(gd->fdt_blob, &mem_config)) {
debug("%s: Failed to decode memory\n", __func__);
return -1;
}
gd->bd->bi_boot_params = mem_config.start + 0x100UL;
#ifdef CONFIG_OF_CONTROL
gd->bd->bi_arch_number = fdtdec_get_config_int(gd->fdt_blob,
"machine-arch-id", -1);
if (gd->bd->bi_arch_number == -1U)
debug("Warning: No /config/machine-arch-id defined in fdt\n");
#endif
#ifdef CONFIG_EXYNOS_SPI
spi_init();
#endif
if (board_i2c_arb_init(gd->fdt_blob))
return -1;
board_i2c_init(gd->fdt_blob);
#ifdef CONFIG_TPS65090_POWER
tps65090_init();
/*
* If we just reset, disable the backlight and lcd fets before
* [re-]initializing the lcd. This ensures we are always in the same
* state during lcd init. We've seen some oddities with these fets, so
* this removes a bit of uncertainty.
*/
if (board_is_processor_reset()) {
tps65090_fet_disable(1);
tps65090_fet_disable(6);
}
#endif
exynos_lcd_check_next_stage(gd->fdt_blob, 0);
if (max77686_enable_32khz_cp()) {
debug("%s: Failed to enable max77686 32khz coprocessor clock\n",
__func__);
return -1;
}
#if defined CONFIG_EXYNOS_CPUFREQ
if (exynos5250_cpufreq_init(gd->fdt_blob)) {
debug("%s: Failed to init CPU frequency scaling\n", __func__);
return -1;
}
#endif
#if defined CONFIG_EXYNOS_TMU
if (tmu_init(gd->fdt_blob)) {
debug("%s: Failed to init TMU\n", __func__);
return -1;
}
#endif
/* Clock Gating all the unused IP's to save power */
clock_gate();
/* Disable USB3.0 PLL to save 250mW of power */
disable_usb30_pll();
if (board_init_mkbp_devices(gd->fdt_blob))
return -1;
board_configure_analogix();
board_enable_audio_codec();
exynos_lcd_check_next_stage(gd->fdt_blob, 0);
bootstage_mark_name(BOOTSTAGE_ID_BOARD_INIT_DONE, "board_init_done");
return 0;
}