#include <common.h>
#include <clk.h>
+#include <cpu.h>
#include <dm.h>
#include <dm/device-internal.h>
#include <dm/lists.h>
DECLARE_GLOBAL_DATA_PTR;
-u32 get_cpu_rev(void)
-{
- u32 id = 0, rev = 0;
- int ret;
-
- ret = sc_misc_get_control(-1, SC_R_SYSTEM, SC_C_ID, &id);
- if (ret)
- return 0;
-
- rev = (id >> 5) & 0xf;
- id = (id & 0x1f) + MXC_SOC_IMX8; /* Dummy ID for chip */
-
- return (id << 12) | rev;
-}
-
-#ifdef CONFIG_DISPLAY_CPUINFO
-const char *get_imx8_type(u32 imxtype)
-{
- switch (imxtype) {
- case MXC_CPU_IMX8QXP:
- return "8QXP";
- default:
- return "??";
- }
-}
-
-const char *get_imx8_rev(u32 rev)
-{
- switch (rev) {
- case CHIP_REV_A:
- return "A";
- case CHIP_REV_B:
- return "B";
- default:
- return "?";
- }
-}
-
-const char *get_core_name(void)
-{
- if (is_cortex_a35())
- return "A35";
- else
- return "?";
-}
-
-int print_cpuinfo(void)
-{
- struct udevice *dev;
- struct clk cpu_clk;
- int ret;
-
- ret = uclass_get_device(UCLASS_CPU, 0, &dev);
- if (ret)
- return 0;
-
- ret = clk_get_by_index(dev, 0, &cpu_clk);
- if (ret) {
- dev_err(dev, "failed to clk\n");
- return 0;
- }
-
- u32 cpurev;
-
- cpurev = get_cpu_rev();
-
- printf("CPU: Freescale i.MX%s rev%s %s at %ld MHz\n",
- get_imx8_type((cpurev & 0xFF000) >> 12),
- get_imx8_rev((cpurev & 0xFFF)),
- get_core_name(),
- clk_get_rate(&cpu_clk) / 1000000);
-
- return 0;
-}
-#endif
-
#define BT_PASSOVER_TAG 0x504F
struct pass_over_info_t *get_pass_over_info(void)
{
int arch_cpu_init(void)
{
- struct pass_over_info_t *pass_over = get_pass_over_info();
-
- if (pass_over && pass_over->g_ap_mu == 0) {
- /*
- * When ap_mu is 0, means the U-Boot booted
- * from first container
- */
- sc_misc_boot_status(-1, SC_MISC_BOOT_STATUS_SUCCESS);
+#ifdef CONFIG_SPL_BUILD
+ struct pass_over_info_t *pass_over;
+
+ if (is_soc_rev(CHIP_REV_A)) {
+ pass_over = get_pass_over_info();
+ if (pass_over && pass_over->g_ap_mu == 0) {
+ /*
+ * When ap_mu is 0, means the U-Boot booted
+ * from first container
+ */
+ sc_misc_boot_status(-1, SC_MISC_BOOT_STATUS_SUCCESS);
+ }
}
+#endif
return 0;
}
dcache_enable();
}
-#ifndef CONFIG_SYS_DCACHE_OFF
+#if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
u64 get_page_table_size(void)
{
u64 one_pt = MAX_PTE_ENTRIES * sizeof(u64);
err:
printf("%s: fuse %d, err: %d\n", __func__, word[i], ret);
}
+
+u32 get_cpu_rev(void)
+{
+ u32 id = 0, rev = 0;
+ int ret;
+
+ ret = sc_misc_get_control(-1, SC_R_SYSTEM, SC_C_ID, &id);
+ if (ret)
+ return 0;
+
+ rev = (id >> 5) & 0xf;
+ id = (id & 0x1f) + MXC_SOC_IMX8; /* Dummy ID for chip */
+
+ return (id << 12) | rev;
+}
+
+#if CONFIG_IS_ENABLED(CPU)
+struct cpu_imx_platdata {
+ const char *name;
+ const char *rev;
+ const char *type;
+ u32 cpurev;
+ u32 freq_mhz;
+};
+
+const char *get_imx8_type(u32 imxtype)
+{
+ switch (imxtype) {
+ case MXC_CPU_IMX8QXP:
+ case MXC_CPU_IMX8QXP_A0:
+ return "QXP";
+ case MXC_CPU_IMX8QM:
+ return "QM";
+ default:
+ return "??";
+ }
+}
+
+const char *get_imx8_rev(u32 rev)
+{
+ switch (rev) {
+ case CHIP_REV_A:
+ return "A";
+ case CHIP_REV_B:
+ return "B";
+ default:
+ return "?";
+ }
+}
+
+const char *get_core_name(void)
+{
+ if (is_cortex_a35())
+ return "A35";
+ else if (is_cortex_a53())
+ return "A53";
+ else if (is_cortex_a72())
+ return "A72";
+ else
+ return "?";
+}
+
+int cpu_imx_get_desc(struct udevice *dev, char *buf, int size)
+{
+ struct cpu_imx_platdata *plat = dev_get_platdata(dev);
+
+ if (size < 100)
+ return -ENOSPC;
+
+ snprintf(buf, size, "NXP i.MX8%s Rev%s %s at %u MHz\n",
+ plat->type, plat->rev, plat->name, plat->freq_mhz);
+
+ return 0;
+}
+
+static int cpu_imx_get_info(struct udevice *dev, struct cpu_info *info)
+{
+ struct cpu_imx_platdata *plat = dev_get_platdata(dev);
+
+ info->cpu_freq = plat->freq_mhz * 1000;
+ info->features = BIT(CPU_FEAT_L1_CACHE) | BIT(CPU_FEAT_MMU);
+ return 0;
+}
+
+static int cpu_imx_get_count(struct udevice *dev)
+{
+ return 4;
+}
+
+static int cpu_imx_get_vendor(struct udevice *dev, char *buf, int size)
+{
+ snprintf(buf, size, "NXP");
+ return 0;
+}
+
+static const struct cpu_ops cpu_imx8_ops = {
+ .get_desc = cpu_imx_get_desc,
+ .get_info = cpu_imx_get_info,
+ .get_count = cpu_imx_get_count,
+ .get_vendor = cpu_imx_get_vendor,
+};
+
+static const struct udevice_id cpu_imx8_ids[] = {
+ { .compatible = "arm,cortex-a35" },
+ { .compatible = "arm,cortex-a53" },
+ { }
+};
+
+static ulong imx8_get_cpu_rate(void)
+{
+ ulong rate;
+ int ret;
+
+ ret = sc_pm_get_clock_rate(-1, SC_R_A35, SC_PM_CLK_CPU,
+ (sc_pm_clock_rate_t *)&rate);
+ if (ret) {
+ printf("Could not read CPU frequency: %d\n", ret);
+ return 0;
+ }
+
+ return rate;
+}
+
+static int imx8_cpu_probe(struct udevice *dev)
+{
+ struct cpu_imx_platdata *plat = dev_get_platdata(dev);
+ u32 cpurev;
+
+ cpurev = get_cpu_rev();
+ plat->cpurev = cpurev;
+ plat->name = get_core_name();
+ plat->rev = get_imx8_rev(cpurev & 0xFFF);
+ plat->type = get_imx8_type((cpurev & 0xFF000) >> 12);
+ plat->freq_mhz = imx8_get_cpu_rate() / 1000000;
+ return 0;
+}
+
+U_BOOT_DRIVER(cpu_imx8_drv) = {
+ .name = "imx8x_cpu",
+ .id = UCLASS_CPU,
+ .of_match = cpu_imx8_ids,
+ .ops = &cpu_imx8_ops,
+ .probe = imx8_cpu_probe,
+ .platdata_auto_alloc_size = sizeof(struct cpu_imx_platdata),
+ .flags = DM_FLAG_PRE_RELOC,
+};
+#endif
projects / oweals / u-boot.git / blobdiff