X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=blobdiff_plain;f=arch%2Farm%2Fimx-common%2Fcpu.c;h=caa6ef6296159769574b4568cee28e479d2d742d;hp=0cd2538b21818de2cb625c0579cf2feed048a8bc;hb=8705c560fb8534ce89832e6f47cf2668cc838691;hpb=1a4596601fd395f3afb8f82f3f840c5e00bdd57a diff --git a/arch/arm/imx-common/cpu.c b/arch/arm/imx-common/cpu.c index 0cd2538b21..caa6ef6296 100644 --- a/arch/arm/imx-common/cpu.c +++ b/arch/arm/imx-common/cpu.c @@ -7,26 +7,35 @@ * SPDX-License-Identifier: GPL-2.0+ */ +#include #include +#include #include #include #include #include #include #include +#include #include +#include +#include #ifdef CONFIG_FSL_ESDHC #include #endif -char *get_reset_cause(void) +#if defined(CONFIG_DISPLAY_CPUINFO) +static u32 reset_cause = -1; + +static char *get_reset_cause(void) { u32 cause; struct src *src_regs = (struct src *)SRC_BASE_ADDR; cause = readl(&src_regs->srsr); writel(cause, &src_regs->srsr); + reset_cause = cause; switch (cause) { case 0x00001: @@ -49,15 +58,22 @@ char *get_reset_cause(void) } } -#if defined(CONFIG_MX53) || defined(CONFIG_MX6) -#if defined(CONFIG_MX53) -#define MEMCTL_BASE ESDCTL_BASE_ADDR; +u32 get_imx_reset_cause(void) +{ + return reset_cause; +} +#endif + +#if defined(CONFIG_SOC_MX53) || defined(CONFIG_SOC_MX6) +#if defined(CONFIG_SOC_MX53) +#define MEMCTL_BASE ESDCTL_BASE_ADDR #else -#define MEMCTL_BASE MMDC_P0_BASE_ADDR; +#define MEMCTL_BASE MMDC_P0_BASE_ADDR #endif static const unsigned char col_lookup[] = {9, 10, 11, 8, 12, 9, 9, 9}; static const unsigned char bank_lookup[] = {3, 2}; +/* these MMDC registers are common to the IMX53 and IMX6 */ struct esd_mmdc_regs { uint32_t ctl; uint32_t pdc; @@ -66,15 +82,6 @@ struct esd_mmdc_regs { uint32_t cfg1; uint32_t cfg2; uint32_t misc; - uint32_t scr; - uint32_t ref; - uint32_t rsvd1; - uint32_t rsvd2; - uint32_t rwd; - uint32_t or; - uint32_t mrr; - uint32_t cfg3lp; - uint32_t mr4; }; #define ESD_MMDC_CTL_GET_ROW(mdctl) ((ctl >> 24) & 7) @@ -83,6 +90,12 @@ struct esd_mmdc_regs { #define ESD_MMDC_CTL_GET_CS1(mdctl) ((ctl >> 30) & 1) #define ESD_MMDC_MISC_GET_BANK(mdmisc) ((misc >> 5) & 1) +/* + * imx_ddr_size - return size in bytes of DRAM according MMDC config + * The MMDC MDCTL register holds the number of bits for row, col, and data + * width and the MMDC MDMISC register holds the number of banks. Combine + * all these bits to determine the meme size the MMDC has been configured for + */ unsigned imx_ddr_size(void) { struct esd_mmdc_regs *mem = (struct esd_mmdc_regs *)MEMCTL_BASE; @@ -95,6 +108,11 @@ unsigned imx_ddr_size(void) bits += bank_lookup[ESD_MMDC_MISC_GET_BANK(misc)]; bits += ESD_MMDC_CTL_GET_WIDTH(ctl); bits += ESD_MMDC_CTL_GET_CS1(ctl); + + /* The MX6 can do only 3840 MiB of DRAM */ + if (bits == 32) + return 0xf0000000; + return 1 << bits; } #endif @@ -104,14 +122,24 @@ unsigned imx_ddr_size(void) const char *get_imx_type(u32 imxtype) { switch (imxtype) { + case MXC_CPU_MX6QP: + return "6QP"; /* Quad-Plus version of the mx6 */ + case MXC_CPU_MX6DP: + return "6DP"; /* Dual-Plus version of the mx6 */ case MXC_CPU_MX6Q: return "6Q"; /* Quad-core version of the mx6 */ + case MXC_CPU_MX6D: + return "6D"; /* Dual-core version of the mx6 */ case MXC_CPU_MX6DL: return "6DL"; /* Dual Lite version of the mx6 */ case MXC_CPU_MX6SOLO: return "6SOLO"; /* Solo version of the mx6 */ case MXC_CPU_MX6SL: return "6SL"; /* Solo-Lite version of the mx6 */ + case MXC_CPU_MX6SX: + return "6SX"; /* SoloX version of the mx6 */ + case MXC_CPU_MX6UL: + return "6UL"; /* Ultra-Lite version of the mx6 */ case MXC_CPU_MX51: return "51"; case MXC_CPU_MX53: @@ -124,14 +152,64 @@ const char *get_imx_type(u32 imxtype) int print_cpuinfo(void) { u32 cpurev; + __maybe_unused u32 max_freq; + +#if defined(CONFIG_SOC_MX6) && defined(CONFIG_IMX6_THERMAL) + struct udevice *thermal_dev; + int cpu_tmp, minc, maxc, ret; +#endif cpurev = get_cpu_rev(); +#if defined(CONFIG_SOC_MX6) + printf("CPU: Freescale i.MX%s rev%d.%d", + get_imx_type((cpurev & 0xFF000) >> 12), + (cpurev & 0x000F0) >> 4, + (cpurev & 0x0000F) >> 0); + max_freq = get_cpu_speed_grade_hz(); + if (!max_freq || max_freq == mxc_get_clock(MXC_ARM_CLK)) { + printf(" at %dMHz\n", mxc_get_clock(MXC_ARM_CLK) / 1000000); + } else { + printf(" %d MHz (running at %d MHz)\n", max_freq / 1000000, + mxc_get_clock(MXC_ARM_CLK) / 1000000); + } +#else printf("CPU: Freescale i.MX%s rev%d.%d at %d MHz\n", get_imx_type((cpurev & 0xFF000) >> 12), (cpurev & 0x000F0) >> 4, (cpurev & 0x0000F) >> 0, mxc_get_clock(MXC_ARM_CLK) / 1000000); +#endif + +#if defined(CONFIG_SOC_MX6) && defined(CONFIG_IMX6_THERMAL) + puts("CPU: "); + switch (get_cpu_temp_grade(&minc, &maxc)) { + case TEMP_AUTOMOTIVE: + puts("Automotive temperature grade "); + break; + case TEMP_INDUSTRIAL: + puts("Industrial temperature grade "); + break; + case TEMP_EXTCOMMERCIAL: + puts("Extended Commercial temperature grade "); + break; + default: + puts("Commercial temperature grade "); + } + printf("(%dC to %dC)", minc, maxc); + ret = uclass_get_device(UCLASS_THERMAL, 0, &thermal_dev); + if (!ret) { + ret = thermal_get_temp(thermal_dev, &cpu_tmp); + + if (!ret) + printf(" at %dC\n", cpu_tmp); + else + puts(" - invalid sensor data\n"); + } else { + puts(" - invalid sensor device\n"); + } +#endif + printf("Reset cause: %s\n", get_reset_cause()); return 0; } @@ -141,7 +219,7 @@ int cpu_eth_init(bd_t *bis) { int rc = -ENODEV; -#if defined(CONFIG_FEC_MXC) +#if defined(CONFIG_FEC_MXC) && defined(CONFIG_FEC_MXC_PHYADDR) rc = fecmxc_initialize(bis); #endif @@ -171,10 +249,47 @@ u32 get_ahb_clk(void) return get_periph_clk() / (ahb_podf + 1); } -#if defined(CONFIG_VIDEO_IPUV3) void arch_preboot_os(void) { +#if defined(CONFIG_CMD_SATA) + sata_stop(); +#if defined(CONFIG_SOC_MX6) + disable_sata_clock(); +#endif +#endif +#if defined(CONFIG_VIDEO_IPUV3) /* disable video before launching O/S */ ipuv3_fb_shutdown(); -} #endif +} + +void set_chipselect_size(int const cs_size) +{ + unsigned int reg; + struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR; + reg = readl(&iomuxc_regs->gpr[1]); + + switch (cs_size) { + case CS0_128: + reg &= ~0x7; /* CS0=128MB, CS1=0, CS2=0, CS3=0 */ + reg |= 0x5; + break; + case CS0_64M_CS1_64M: + reg &= ~0x3F; /* CS0=64MB, CS1=64MB, CS2=0, CS3=0 */ + reg |= 0x1B; + break; + case CS0_64M_CS1_32M_CS2_32M: + reg &= ~0x1FF; /* CS0=64MB, CS1=32MB, CS2=32MB, CS3=0 */ + reg |= 0x4B; + break; + case CS0_32M_CS1_32M_CS2_32M_CS3_32M: + reg &= ~0xFFF; /* CS0=32MB, CS1=32MB, CS2=32MB, CS3=32MB */ + reg |= 0x249; + break; + default: + printf("Unknown chip select size: %d\n", cs_size); + break; + } + + writel(reg, &iomuxc_regs->gpr[1]); +}