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https://github.com/brain-hackers/u-boot-brain
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f49cc22f5c
The designware ethernet driver supports d-cache now. So there is nothing stopping us now to enable the caches completely on SPEAr. Tested on SPEAr600 x600 board. Signed-off-by: Stefan Roese <sr@denx.de> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: Vipin Kumar <vk.vipin@gmail.com>
86 lines
1.8 KiB
C
86 lines
1.8 KiB
C
/*
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* (C) Copyright 2010
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* Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/spr_misc.h>
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int arch_cpu_init(void)
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{
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struct misc_regs *const misc_p =
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(struct misc_regs *)CONFIG_SPEAR_MISCBASE;
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u32 periph1_clken, periph_clk_cfg;
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periph1_clken = readl(&misc_p->periph1_clken);
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#if defined(CONFIG_SPEAR3XX)
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periph1_clken |= MISC_GPT2ENB;
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#elif defined(CONFIG_SPEAR600)
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periph1_clken |= MISC_GPT3ENB;
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#endif
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#if defined(CONFIG_PL011_SERIAL)
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periph1_clken |= MISC_UART0ENB;
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periph_clk_cfg = readl(&misc_p->periph_clk_cfg);
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periph_clk_cfg &= ~CONFIG_SPEAR_UARTCLKMSK;
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periph_clk_cfg |= CONFIG_SPEAR_UART48M;
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writel(periph_clk_cfg, &misc_p->periph_clk_cfg);
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#endif
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#if defined(CONFIG_ETH_DESIGNWARE)
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periph1_clken |= MISC_ETHENB;
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#endif
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#if defined(CONFIG_DW_UDC)
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periph1_clken |= MISC_USBDENB;
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#endif
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#if defined(CONFIG_SYS_I2C_DW)
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periph1_clken |= MISC_I2CENB;
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#endif
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#if defined(CONFIG_ST_SMI)
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periph1_clken |= MISC_SMIENB;
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#endif
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#if defined(CONFIG_NAND_FSMC)
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periph1_clken |= MISC_FSMCENB;
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#endif
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#if defined(CONFIG_USB_EHCI_SPEAR)
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periph1_clken |= PERIPH_USBH1 | PERIPH_USBH2;
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#endif
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writel(periph1_clken, &misc_p->periph1_clken);
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return 0;
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}
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void enable_caches(void)
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{
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#ifndef CONFIG_SYS_ICACHE_OFF
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icache_enable();
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#endif
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#ifndef CONFIG_SYS_DCACHE_OFF
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dcache_enable();
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#endif
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}
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#ifdef CONFIG_DISPLAY_CPUINFO
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int print_cpuinfo(void)
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{
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#ifdef CONFIG_SPEAR300
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printf("CPU: SPEAr300\n");
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#elif defined(CONFIG_SPEAR310)
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printf("CPU: SPEAr310\n");
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#elif defined(CONFIG_SPEAR320)
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printf("CPU: SPEAr320\n");
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#elif defined(CONFIG_SPEAR600)
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printf("CPU: SPEAr600\n");
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#else
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#error CPU not supported in spear platform
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#endif
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return 0;
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}
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#endif
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