diff options
Diffstat (limited to 'arch/arm/mach-sc5xx/soc.c')
| -rw-r--r-- | arch/arm/mach-sc5xx/soc.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/arch/arm/mach-sc5xx/soc.c b/arch/arm/mach-sc5xx/soc.c new file mode 100644 index 0000000..8f13127 --- /dev/null +++ b/arch/arm/mach-sc5xx/soc.c @@ -0,0 +1,179 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * (C) Copyright 2022 - Analog Devices, Inc. + * + * Written and/or maintained by Timesys Corporation + * + * Contact: Nathan Barrett-Morrison <nathan.morrison@timesys.com> + * Contact: Greg Malysa <greg.malysa@timesys.com> + */ + +#include <asm/arch-adi/sc5xx/sc5xx.h> +#include <asm/arch-adi/sc5xx/soc.h> +#include <asm/global_data.h> +#include <asm/io.h> +#include <cpu_func.h> + +#ifdef CONFIG_SC58X + #define RCU0_CTL 0x3108B000 + #define RCU0_STAT 0x3108B004 + #define RCU0_CRCTL 0x3108B008 + #define RCU0_CRSTAT 0x3108B00C + #define RCU0_SIDIS 0x3108B010 + #define RCU0_MSG_SET 0x3108B064 +#elif defined(CONFIG_SC57X) || defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + #define RCU0_CTL 0x3108C000 + #define RCU0_STAT 0x3108C004 + #define RCU0_CRCTL 0x3108C008 + #define RCU0_CRSTAT 0x3108C00C + #define RCU0_SIDIS 0x3108C01C + #define RCU0_MSG_SET 0x3108C070 +#else + #error "No SC5xx SoC CONFIG_ enabled" +#endif + +#define BITP_RCU_STAT_BMODE 8 +#define BITM_RCU_STAT_BMODE 0x00000F00 + +#define REG_ARMPMU0_PMCR 0x31121E04 +#define REG_ARMPMU0_PMUSERENR 0x31121E08 +#define REG_ARMPMU0_PMLAR 0x31121FB0 + +DECLARE_GLOBAL_DATA_PTR; + +void reset_cpu(void) +{ + u32 val = readl(RCU0_CTL); + writel(val | 1, RCU0_CTL); +} + +void enable_caches(void) +{ + if (!IS_ENABLED(CONFIG_SYS_DCACHE_OFF)) + dcache_enable(); +} + +void sc5xx_enable_ns_sharc_access(uintptr_t securec0_base) +{ + writel(0, securec0_base); + writel(0, securec0_base + 0x4); + writel(0, securec0_base + 0x8); +} + +void sc5xx_disable_spu0(uintptr_t spu0_start, uintptr_t spu0_end) +{ + for (uintptr_t i = spu0_start; i <= spu0_end; i += 4) + writel(0, i); +} + +/** + * PMU is only available on armv7 platforms and all share the same location + */ +void sc5xx_enable_pmu(void) +{ + if (!IS_ENABLED(CONFIG_SC59X_64)) { + writel(readl(REG_ARMPMU0_PMUSERENR) | 0x01, REG_ARMPMU0_PMUSERENR); + writel(0xc5acce55, REG_ARMPMU0_PMLAR); + writel(readl(REG_ARMPMU0_PMCR) | (1 << 1), REG_ARMPMU0_PMCR); + } +} + +const char *sc5xx_get_boot_mode(u32 *bmode) +{ + static const char * const bmodes[] = { + "JTAG/BOOTROM", + "QSPI Master", + "QSPI Slave", + "UART", + "LP0 Slave", + "OSPI", +#ifdef CONFIG_SC59X_64 + "eMMC" +#endif + }; + u32 local_mode; + + local_mode = (readl(RCU0_STAT) & BITM_RCU_STAT_BMODE) >> BITP_RCU_STAT_BMODE; + +#if CONFIG_ADI_SPL_FORCE_BMODE != 0 + /* + * In case we want to force boot sequences such as: + * QSPI -> OSPI + * QSPI -> eMMC + * If this is not set, then we will always try to use the BMODE setting + * for both stages... i.e. + * QSPI -> QSPI + */ + + // (Don't allow skipping JTAG/UART BMODE settings) + if (local_mode != 0 && local_mode != 3) + local_mode = CONFIG_ADI_SPL_FORCE_BMODE; +#endif + + *bmode = local_mode; + + if (local_mode >= 0 && local_mode <= ARRAY_SIZE(bmodes)) + return bmodes[local_mode]; + return "unknown"; +} + +void print_cpu_id(void) +{ + if (!IS_ENABLED(CONFIG_ARM64)) { + u32 cpuid = 0; + + __asm__ __volatile__("mrc p15, 0, %0, c0, c0, 0" : "=r"(cpuid)); + + printf("Detected Revision: %d.%d\n", cpuid & 0xf00000 >> 20, cpuid & 0xf); + } +} + +int print_cpuinfo(void) +{ + u32 bmode; + + printf("CPU: ADSP %s (%s boot)\n", CONFIG_LDR_CPU, sc5xx_get_boot_mode(&bmode)); + print_cpu_id(); + + return 0; +} + +void fixup_dp83867_phy(struct phy_device *phydev) +{ + int phy_data = 0; + + phy_data = phy_read(phydev, MDIO_DEVAD_NONE, 0x32); + phy_write(phydev, MDIO_DEVAD_NONE, 0x32, (1 << 7) | phy_data); + int cfg3 = 0; + #define MII_DP83867_CFG3 (0x1e) + /* + * Pin INT/PWDN on DP83867 should be configured as an Interrupt Output + * instead of a Power-Down Input on ADI SC5XX boards in order to + * prevent the signal interference from other peripherals during they + * are running at the same time. + */ + cfg3 = phy_read(phydev, MDIO_DEVAD_NONE, MII_DP83867_CFG3); + cfg3 |= (1 << 7); + phy_write(phydev, MDIO_DEVAD_NONE, MII_DP83867_CFG3, cfg3); + + // Mystery second port fixup on ezkits with two PHYs + if (CONFIG_DW_PORTS & 2) + phy_write(phydev, MDIO_DEVAD_NONE, 0x11, 3); + + if (IS_ENABLED(CONFIG_ADI_BUG_EZKHW21)) { + phydev->advertising &= PHY_BASIC_FEATURES; + phydev->speed = SPEED_100; + } + + if (phydev->drv->config) + phydev->drv->config(phydev); + + if (IS_ENABLED(CONFIG_ADI_BUG_EZKHW21)) + phy_write(phydev, MDIO_DEVAD_NONE, 0, 0x3100); +} + +int dram_init(void) +{ + gd->ram_size = CFG_SYS_SDRAM_SIZE; + return 0; +} |