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realtek: extend SoC information
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Add SoC revision, CPU part number, and a flag for engineering samples to
the rtl83xx_soc_info structure.

Also extend the system type string to include this information.

Signed-off-by: Jan Hoffmann <jan@3e8.eu>
Link: https://github.com/openwrt/openwrt/pull/19653
Signed-off-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
Jan Hoffmann 2025-08-02 20:31:39 +02:00 • committed by Robert Marko
parent 368dab7c7a
commit 2a9f0db76f
2 changed files with 77 additions and 2 deletions
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5
target/linux/realtek/files-6.12/arch/mips/include/asm/mach-rtl838x/mach-rtl83xx.h
View file

@ -7,6 +7,8 @@
#define _MACH_RTL838X_H_
#include <asm/types.h>
#include <linux/types.h>
/*
* Register access macros
*/
@ -393,6 +395,9 @@ struct rtl83xx_soc_info {
unsigned char *name;
unsigned int id;
unsigned int family;
unsigned int revision;
unsigned int cpu;
bool testchip;
unsigned char *compatible;
volatile void *sw_base;
volatile void *icu_base;

74
target/linux/realtek/files-6.12/arch/mips/rtl838x/prom.c
View file

@ -21,7 +21,7 @@ struct rtl83xx_soc_info soc_info;
const void *fdt;
static char soc_name[16];
static char rtl83xx_system_type[32];
static char rtl83xx_system_type[48];
#ifdef CONFIG_MIPS_MT_SMP
@ -102,6 +102,62 @@ const char *get_system_type(void)
return rtl83xx_system_type;
}
static void __init rtl838x_read_details(uint32_t model)
{
uint32_t chip_info, ext_version, tmp;
sw_w32(0x3, RTL838X_INT_RW_CTRL);
sw_w32(0xa << 28, RTL838X_CHIP_INFO);
chip_info = sw_r32(RTL838X_CHIP_INFO);
soc_info.cpu = chip_info & 0xffff;
ext_version = sw_r32(RTL838X_EXT_VERSION);
tmp = ext_version & 0x1f;
if (tmp == 2) {
soc_info.revision = 1;
} else {
tmp = (chip_info >> 16) & 0x1f;
if (soc_info.cpu == 0x0477) {
soc_info.revision = tmp;
soc_info.testchip = true;
} else {
soc_info.revision = tmp - 1;
}
}
}
static void __init rtl839x_read_details(uint32_t model)
{
uint32_t chip_info;
sw_w32(0xa << 28, RTL839X_CHIP_INFO);
chip_info = sw_r32(RTL839X_CHIP_INFO);
soc_info.cpu = chip_info & 0xffff;
soc_info.revision = (model >> 1) & 0x1f;
if (!(model & 0x3e))
soc_info.testchip = true;
}
static void __init rtl93xx_read_details(uint32_t model)
{
uint32_t chip_info;
sw_w32(0xa << 16, RTL93XX_CHIP_INFO);
chip_info = sw_r32(RTL93XX_CHIP_INFO);
soc_info.cpu = chip_info & 0xffff;
soc_info.revision = model & 0xf;
if (model & 0x30)
soc_info.testchip = true;
}
static uint32_t __init read_model(void)
{
uint32_t model, id;
@ -111,6 +167,7 @@ static uint32_t __init read_model(void)
if ((id >= 0x8380 && id <= 0x8382) || id == 0x8330 || id == 0x8332) {
soc_info.id = id;
soc_info.family = RTL8380_FAMILY_ID;
rtl838x_read_details(model);
return model;
}
@ -119,6 +176,7 @@ static uint32_t __init read_model(void)
if ((id >= 0x8391 && id <= 0x8396) || (id >= 0x8351 && id <= 0x8353)) {
soc_info.id = id;
soc_info.family = RTL8390_FAMILY_ID;
rtl839x_read_details(model);
return model;
}
@ -127,10 +185,12 @@ static uint32_t __init read_model(void)
if (id >= 0x9301 && id <= 0x9303) {
soc_info.id = id;
soc_info.family = RTL9300_FAMILY_ID;
rtl93xx_read_details(model);
return model;
} else if (id >= 0x9311 && id <= 0x9313) {
soc_info.id = id;
soc_info.family = RTL9310_FAMILY_ID;
rtl93xx_read_details(model);
return model;
}
@ -153,8 +213,18 @@ static void __init parse_model(uint32_t model)
}
static void __init rtl83xx_set_system_type(void) {
char revision = '?';
char *es = "";
if (soc_info.revision >= 0 && soc_info.revision < 26)
revision = 'A' + soc_info.revision;
if (soc_info.testchip)
es = " ES";
snprintf(rtl83xx_system_type, sizeof(rtl83xx_system_type),
"Realtek %s", soc_info.name);
"Realtek %s%s rev %c (%04X)",
soc_info.name, es, revision, soc_info.cpu);
}
void __init prom_init(void)