mirror of
https://github.com/AsahiLinux/u-boot
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
373 lines
8.5 KiB
C
373 lines
8.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2008
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* Texas Instruments, <www.ti.com>
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*
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* Author :
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* Manikandan Pillai <mani.pillai@ti.com>
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*
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* Derived from Beagle Board and 3430 SDP code by
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* Richard Woodruff <r-woodruff2@ti.com>
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* Syed Mohammed Khasim <khasim@ti.com>
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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/mem.h> /* get mem tables */
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#include <asm/arch/sys_proto.h>
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#include <asm/bootm.h>
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#include <asm/omap_common.h>
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#include <i2c.h>
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#include <linux/compiler.h>
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extern omap3_sysinfo sysinfo;
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static struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
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#ifdef CONFIG_DISPLAY_CPUINFO
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static char *rev_s[CPU_3XX_MAX_REV] = {
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"1.0",
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"2.0",
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"2.1",
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"3.0",
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"3.1",
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"UNKNOWN",
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"UNKNOWN",
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"3.1.2"};
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/* this is the revision table for 37xx CPUs */
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static char *rev_s_37xx[CPU_37XX_MAX_REV] = {
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"1.0",
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"1.1",
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"1.2"};
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#endif /* CONFIG_DISPLAY_CPUINFO */
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void omap_die_id(unsigned int *die_id)
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{
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struct ctrl_id *id_base = (struct ctrl_id *)OMAP34XX_ID_L4_IO_BASE;
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die_id[0] = readl(&id_base->die_id_0);
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die_id[1] = readl(&id_base->die_id_1);
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die_id[2] = readl(&id_base->die_id_2);
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die_id[3] = readl(&id_base->die_id_3);
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}
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/******************************************
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* get_cpu_type(void) - extract cpu info
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******************************************/
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u32 get_cpu_type(void)
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{
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return readl(&ctrl_base->ctrl_omap_stat);
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}
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/******************************************
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* get_cpu_id(void) - extract cpu id
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* returns 0 for ES1.0, cpuid otherwise
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******************************************/
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u32 get_cpu_id(void)
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{
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struct ctrl_id *id_base;
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u32 cpuid = 0;
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/*
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* On ES1.0 the IDCODE register is not exposed on L4
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* so using CPU ID to differentiate between ES1.0 and > ES1.0.
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*/
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__asm__ __volatile__("mrc p15, 0, %0, c0, c0, 0":"=r"(cpuid));
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if ((cpuid & 0xf) == 0x0) {
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return 0;
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} else {
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/* Decode the IDs on > ES1.0 */
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id_base = (struct ctrl_id *) OMAP34XX_ID_L4_IO_BASE;
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cpuid = readl(&id_base->idcode);
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}
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return cpuid;
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}
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/******************************************
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* get_cpu_family(void) - extract cpu info
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******************************************/
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u32 get_cpu_family(void)
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{
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u16 hawkeye;
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u32 cpu_family;
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u32 cpuid = get_cpu_id();
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if (cpuid == 0)
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return CPU_OMAP34XX;
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hawkeye = (cpuid >> HAWKEYE_SHIFT) & 0xffff;
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switch (hawkeye) {
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case HAWKEYE_OMAP34XX:
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cpu_family = CPU_OMAP34XX;
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break;
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case HAWKEYE_AM35XX:
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cpu_family = CPU_AM35XX;
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break;
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case HAWKEYE_OMAP36XX:
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cpu_family = CPU_OMAP36XX;
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break;
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default:
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cpu_family = CPU_OMAP34XX;
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}
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return cpu_family;
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}
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/******************************************
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* get_cpu_rev(void) - extract version info
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******************************************/
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u32 get_cpu_rev(void)
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{
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u32 cpuid = get_cpu_id();
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if (cpuid == 0)
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return CPU_3XX_ES10;
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else
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return (cpuid >> CPU_3XX_ID_SHIFT) & 0xf;
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}
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/*****************************************************************
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* get_sku_id(void) - read sku_id to get info on max clock rate
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*****************************************************************/
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u32 get_sku_id(void)
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{
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struct ctrl_id *id_base = (struct ctrl_id *)OMAP34XX_ID_L4_IO_BASE;
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return readl(&id_base->sku_id) & SKUID_CLK_MASK;
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}
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/***************************************************************************
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* get_gpmc0_base() - Return current address hardware will be
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* fetching from. The below effectively gives what is correct, its a bit
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* mis-leading compared to the TRM. For the most general case the mask
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* needs to be also taken into account this does work in practice.
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* - for u-boot we currently map:
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* -- 0 to nothing,
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* -- 4 to flash
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* -- 8 to enent
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* -- c to wifi
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****************************************************************************/
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u32 get_gpmc0_base(void)
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{
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u32 b;
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b = readl(&gpmc_cfg->cs[0].config7);
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b &= 0x1F; /* keep base [5:0] */
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b = b << 24; /* ret 0x0b000000 */
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return b;
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}
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/*******************************************************************
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* get_gpmc0_width() - See if bus is in x8 or x16 (mainly for nand)
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*******************************************************************/
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u32 get_gpmc0_width(void)
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{
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return WIDTH_16BIT;
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}
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/*************************************************************************
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* get_board_rev() - setup to pass kernel board revision information
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* returns:(bit[0-3] sub version, higher bit[7-4] is higher version)
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*************************************************************************/
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#ifdef CONFIG_REVISION_TAG
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u32 __weak get_board_rev(void)
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{
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return 0x20;
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}
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#endif
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/********************************************************
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* get_base(); get upper addr of current execution
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*******************************************************/
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static u32 get_base(void)
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{
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u32 val;
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__asm__ __volatile__("mov %0, pc \n":"=r"(val)::"memory");
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val &= 0xF0000000;
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val >>= 28;
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return val;
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}
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/********************************************************
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* is_running_in_flash() - tell if currently running in
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* FLASH.
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*******************************************************/
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u32 is_running_in_flash(void)
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{
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if (get_base() < 4)
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return 1; /* in FLASH */
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return 0; /* running in SRAM or SDRAM */
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}
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/********************************************************
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* is_running_in_sram() - tell if currently running in
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* SRAM.
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*******************************************************/
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u32 is_running_in_sram(void)
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{
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if (get_base() == 4)
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return 1; /* in SRAM */
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return 0; /* running in FLASH or SDRAM */
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}
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/********************************************************
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* is_running_in_sdram() - tell if currently running in
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* SDRAM.
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*******************************************************/
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u32 is_running_in_sdram(void)
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{
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if (get_base() > 4)
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return 1; /* in SDRAM */
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return 0; /* running in SRAM or FLASH */
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}
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/***************************************************************
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* get_boot_type() - Is this an XIP type device or a stream one
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* bits 4-0 specify type. Bit 5 says mem/perif
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***************************************************************/
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u32 get_boot_type(void)
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{
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return (readl(&ctrl_base->status) & SYSBOOT_MASK);
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}
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#ifdef CONFIG_DISPLAY_CPUINFO
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/**
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* Print CPU information
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*/
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int print_cpuinfo (void)
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{
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char *cpu_family_s, *cpu_s, *sec_s, *max_clk;
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switch (get_cpu_family()) {
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case CPU_OMAP34XX:
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cpu_family_s = "OMAP";
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switch (get_cpu_type()) {
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case OMAP3503:
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cpu_s = "3503";
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break;
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case OMAP3515:
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cpu_s = "3515";
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break;
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case OMAP3525:
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cpu_s = "3525";
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break;
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case OMAP3530:
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cpu_s = "3530";
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break;
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default:
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cpu_s = "35XX";
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break;
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}
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if ((get_cpu_rev() >= CPU_3XX_ES31) &&
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(get_sku_id() == SKUID_CLK_720MHZ))
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max_clk = "720 MHz";
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else
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max_clk = "600 MHz";
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break;
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case CPU_AM35XX:
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cpu_family_s = "AM";
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switch (get_cpu_type()) {
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case AM3505:
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cpu_s = "3505";
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break;
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case AM3517:
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cpu_s = "3517";
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break;
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default:
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cpu_s = "35XX";
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break;
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}
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max_clk = "600 MHz";
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break;
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case CPU_OMAP36XX:
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switch (get_cpu_type()) {
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case AM3703:
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cpu_family_s = "AM";
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cpu_s = "3703";
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max_clk = "800 MHz";
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break;
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case AM3703_1GHZ:
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cpu_family_s = "AM";
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cpu_s = "3703";
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max_clk = "1 GHz";
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break;
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case AM3715:
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cpu_family_s = "AM";
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cpu_s = "3715";
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max_clk = "800 MHz";
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break;
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case AM3715_1GHZ:
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cpu_family_s = "AM";
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cpu_s = "3715";
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max_clk = "1 GHz";
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break;
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case OMAP3725:
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cpu_family_s = "OMAP";
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cpu_s = "3625/3725";
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max_clk = "800 MHz";
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break;
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case OMAP3725_1GHZ:
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cpu_family_s = "OMAP";
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cpu_s = "3625/3725";
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max_clk = "1 GHz";
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break;
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case OMAP3730:
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cpu_family_s = "OMAP";
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cpu_s = "3630/3730";
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max_clk = "800 MHz";
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break;
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case OMAP3730_1GHZ:
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cpu_family_s = "OMAP";
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cpu_s = "3630/3730";
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max_clk = "1 GHz";
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break;
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default:
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cpu_family_s = "OMAP/AM";
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cpu_s = "36XX/37XX";
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max_clk = "1 GHz";
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break;
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}
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break;
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default:
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cpu_family_s = "OMAP";
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cpu_s = "35XX";
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max_clk = "600 MHz";
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}
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switch (get_device_type()) {
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case TST_DEVICE:
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sec_s = "TST";
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break;
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case EMU_DEVICE:
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sec_s = "EMU";
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break;
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case HS_DEVICE:
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sec_s = "HS";
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break;
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case GP_DEVICE:
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sec_s = "GP";
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break;
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default:
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sec_s = "?";
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}
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if (CPU_OMAP36XX == get_cpu_family())
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printf("%s%s-%s ES%s, CPU-OPP2, L3-200MHz, Max CPU Clock %s\n",
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cpu_family_s, cpu_s, sec_s,
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rev_s_37xx[get_cpu_rev()], max_clk);
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else
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printf("%s%s-%s ES%s, CPU-OPP2, L3-165MHz, Max CPU Clock %s\n",
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cpu_family_s, cpu_s, sec_s,
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rev_s[get_cpu_rev()], max_clk);
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return 0;
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}
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#endif /* CONFIG_DISPLAY_CPUINFO */
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