cpu.c
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/*
* Copyright (C) 2015-2016 Wills Wang <wills.wang@live.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/addrspace.h>
#include <asm/types.h>
#include <mach/ath79.h>
#include <mach/ar71xx_regs.h>
struct ath79_soc_desc {
const enum ath79_soc_type soc;
const char *chip;
const int major;
const int minor;
};
static const struct ath79_soc_desc desc[] = {
{ATH79_SOC_AR7130, "7130",
REV_ID_MAJOR_AR71XX, AR71XX_REV_ID_MINOR_AR7130},
{ATH79_SOC_AR7141, "7141",
REV_ID_MAJOR_AR71XX, AR71XX_REV_ID_MINOR_AR7141},
{ATH79_SOC_AR7161, "7161",
REV_ID_MAJOR_AR71XX, AR71XX_REV_ID_MINOR_AR7161},
{ATH79_SOC_AR7240, "7240", REV_ID_MAJOR_AR7240, 0},
{ATH79_SOC_AR7241, "7241", REV_ID_MAJOR_AR7241, 0},
{ATH79_SOC_AR7242, "7242", REV_ID_MAJOR_AR7242, 0},
{ATH79_SOC_AR9130, "9130",
REV_ID_MAJOR_AR913X, AR913X_REV_ID_MINOR_AR9130},
{ATH79_SOC_AR9132, "9132",
REV_ID_MAJOR_AR913X, AR913X_REV_ID_MINOR_AR9132},
{ATH79_SOC_AR9330, "9330", REV_ID_MAJOR_AR9330, 0},
{ATH79_SOC_AR9331, "9331", REV_ID_MAJOR_AR9331, 0},
{ATH79_SOC_AR9341, "9341", REV_ID_MAJOR_AR9341, 0},
{ATH79_SOC_AR9342, "9342", REV_ID_MAJOR_AR9342, 0},
{ATH79_SOC_AR9344, "9344", REV_ID_MAJOR_AR9344, 0},
{ATH79_SOC_QCA9533, "9533", REV_ID_MAJOR_QCA9533, 0},
{ATH79_SOC_QCA9533, "9533",
REV_ID_MAJOR_QCA9533_V2, 0},
{ATH79_SOC_QCA9556, "9556", REV_ID_MAJOR_QCA9556, 0},
{ATH79_SOC_QCA9558, "9558", REV_ID_MAJOR_QCA9558, 0},
{ATH79_SOC_TP9343, "9343", REV_ID_MAJOR_TP9343, 0},
{ATH79_SOC_QCA9561, "9561", REV_ID_MAJOR_QCA9561, 0},
};
int mach_cpu_init(void)
{
void __iomem *base;
enum ath79_soc_type soc = ATH79_SOC_UNKNOWN;
u32 id, major, minor = 0;
u32 rev = 0, ver = 1;
int i;
base = map_physmem(AR71XX_RESET_BASE, AR71XX_RESET_SIZE,
MAP_NOCACHE);
id = readl(base + AR71XX_RESET_REG_REV_ID);
major = id & REV_ID_MAJOR_MASK;
switch (major) {
case REV_ID_MAJOR_AR71XX:
case REV_ID_MAJOR_AR913X:
minor = id & AR71XX_REV_ID_MINOR_MASK;
rev = id >> AR71XX_REV_ID_REVISION_SHIFT;
rev &= AR71XX_REV_ID_REVISION_MASK;
break;
case REV_ID_MAJOR_QCA9533_V2:
ver = 2;
/* drop through */
case REV_ID_MAJOR_AR9341:
case REV_ID_MAJOR_AR9342:
case REV_ID_MAJOR_AR9344:
case REV_ID_MAJOR_QCA9533:
case REV_ID_MAJOR_QCA9556:
case REV_ID_MAJOR_QCA9558:
case REV_ID_MAJOR_TP9343:
case REV_ID_MAJOR_QCA9561:
rev = id & AR71XX_REV_ID_REVISION2_MASK;
break;
default:
rev = id & AR71XX_REV_ID_REVISION_MASK;
break;
}
for (i = 0; i < ARRAY_SIZE(desc); i++) {
if ((desc[i].major == major) &&
(desc[i].minor == minor)) {
soc = desc[i].soc;
break;
}
}
gd->arch.id = id;
gd->arch.soc = soc;
gd->arch.rev = rev;
gd->arch.ver = ver;
return 0;
}
int print_cpuinfo(void)
{
enum ath79_soc_type soc = ATH79_SOC_UNKNOWN;
const char *chip = "????";
u32 id, rev, ver;
int i;
for (i = 0; i < ARRAY_SIZE(desc); i++) {
if (desc[i].soc == gd->arch.soc) {
chip = desc[i].chip;
soc = desc[i].soc;
break;
}
}
id = gd->arch.id;
rev = gd->arch.rev;
ver = gd->arch.ver;
switch (soc) {
case ATH79_SOC_QCA9533:
case ATH79_SOC_QCA9556:
case ATH79_SOC_QCA9558:
case ATH79_SOC_QCA9561:
printf("Qualcomm Atheros QCA%s ver %u rev %u\n", chip,
ver, rev);
break;
case ATH79_SOC_TP9343:
printf("Qualcomm Atheros TP%s rev %u\n", chip, rev);
break;
case ATH79_SOC_UNKNOWN:
printf("ATH79: unknown SoC, id:0x%08x", id);
break;
default:
printf("Atheros AR%s rev %u\n", chip, rev);
}
return 0;
}