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authorPeng Fan <peng.fan@nxp.com>2019-08-26 08:12:19 +0000
committerStefano Babic <sbabic@denx.de>2019-10-08 16:35:59 +0200
commit43c50873854204cc5ca810516e160afb512303be (patch)
treeaf2ebe2a960964b947c038d8fe02ca3abbec8bf7 /arch/arm
parent8cacd788b40d1cbb80aafe2ee561ac7d74291446 (diff)
imx8: move i.MX8 cpu desc code to drivers/cpu/imx8_cpu.c
Move cpu desc code to cpu driver directory and name it imx8_cpu.c No functional change. Signed-off-by: Peng Fan <peng.fan@nxp.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-imx/imx8/cpu.c168
1 files changed, 0 insertions, 168 deletions
diff --git a/arch/arm/mach-imx/imx8/cpu.c b/arch/arm/mach-imx/imx8/cpu.c
index 1a5d811373..4e6120cc03 100644
--- a/arch/arm/mach-imx/imx8/cpu.c
+++ b/arch/arm/mach-imx/imx8/cpu.c
@@ -528,171 +528,3 @@ u32 get_cpu_rev(void)
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 "?";
-}
-
-#if IS_ENABLED(CONFIG_IMX_SCU_THERMAL)
-static int cpu_imx_get_temp(void)
-{
- struct udevice *thermal_dev;
- int cpu_tmp, ret;
-
- ret = uclass_get_device_by_name(UCLASS_THERMAL, "cpu-thermal0",
- &thermal_dev);
-
- if (!ret) {
- ret = thermal_get_temp(thermal_dev, &cpu_tmp);
- if (ret)
- return 0xdeadbeef;
- } else {
- return 0xdeadbeef;
- }
-
- return cpu_tmp;
-}
-#else
-static int cpu_imx_get_temp(void)
-{
- return 0;
-}
-#endif
-
-int cpu_imx_get_desc(struct udevice *dev, char *buf, int size)
-{
- struct cpu_imx_platdata *plat = dev_get_platdata(dev);
- int ret;
-
- if (size < 100)
- return -ENOSPC;
-
- ret = snprintf(buf, size, "NXP i.MX8%s Rev%s %s at %u MHz",
- plat->type, plat->rev, plat->name, plat->freq_mhz);
-
- if (IS_ENABLED(CONFIG_IMX_SCU_THERMAL)) {
- buf = buf + ret;
- size = size - ret;
- ret = snprintf(buf, size, " at %dC", cpu_imx_get_temp());
- }
-
- snprintf(buf + ret, size - ret, "\n");
-
- 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;
- int type = is_cortex_a35() ? SC_R_A35 : is_cortex_a53() ?
- SC_R_A53 : SC_R_A72;
-
- ret = sc_pm_get_clock_rate(-1, type, 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