3e42e349d4
Strip trailing whitespace in all code: find . -type f | grep "\.c$" | xargs sed -i 's/[ \t]\+$//' find . -type f | grep "\.h$" | xargs sed -i 's/[ \t]\+$//' find . -type f | grep "\.dts$" | xargs sed -i 's/[ \t]\+$//' find . -type f | grep "\.dtsi$" | xargs sed -i 's/[ \t]\+$//' Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com> Link: https://github.com/openwrt/openwrt/pull/22840 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
116 lines
2.9 KiB
C
116 lines
2.9 KiB
C
/*
|
|
* rt-loader board functions
|
|
* (c) 2025 Markus Stockhausen
|
|
*/
|
|
|
|
#include "globals.h"
|
|
#include "memory.h"
|
|
#include "nanoprintf.h"
|
|
|
|
#define UART_BUFFER_REG 0xb8002000
|
|
#define UART_LINE_STATUS_REG 0xb8002014
|
|
#define UART_TX_READY (1 << 29)
|
|
|
|
#define RTL83XX_DRAM_CONFIG_REG 0xb8001004
|
|
#define RTL838X_ENABLE_RW_MASK 0x3
|
|
#define RTL838X_INT_RW_CTRL_REG 0xbb000058
|
|
#define RTL838X_MODEL_NAME_INFO_REG 0xbb0000d4
|
|
#define RTL839X_MODEL_NAME_INFO_REG 0xbb000ff0
|
|
#define RTL83XX_CHIP_INFO_EN 0xa0000000
|
|
#define RTL931X_DRAM_CONFIG_REG 0xb814304c
|
|
#define RTL93XX_MODEL_NAME_INFO_REG 0xbb000004
|
|
#define RTL93XX_CHIP_INFO_EN 0xa0000
|
|
|
|
|
|
/*
|
|
* board_putchar() is the central function to write to serial console of the device. This is
|
|
* linked to printf() and the provider library via globals.h.
|
|
*/
|
|
|
|
void board_putchar(int ch, void *ctx)
|
|
{
|
|
while (!(ioread32(UART_LINE_STATUS_REG) & UART_TX_READY));
|
|
iowrite32(((int)ch) << 24, UART_BUFFER_REG);
|
|
|
|
if (ch == '\n')
|
|
board_putchar('\r', ctx);
|
|
}
|
|
|
|
/*
|
|
* board_get_memory() does what it is named after. On Realtek switches the DRAM config register
|
|
* has information about bank count, bus width, ... From that the memory size can be derived.
|
|
*/
|
|
|
|
unsigned int board_get_memory(void)
|
|
{
|
|
unsigned int dcr, bits;
|
|
|
|
if ((ioread32(RTL93XX_MODEL_NAME_INFO_REG) & 0xfffc0000) == 0x93100000) {
|
|
dcr = ioread32(RTL931X_DRAM_CONFIG_REG);
|
|
bits = (dcr >> 12) + ((dcr >> 6) & 0x3f) + (dcr & 0x3f);
|
|
} else {
|
|
dcr = ioread32(RTL83XX_DRAM_CONFIG_REG);
|
|
bits = ((dcr >> 28) & 0x3) + ((dcr >> 24) & 0x3) +
|
|
((dcr >> 20) & 0xf) + ((dcr >> 16) & 0xf) + 20;
|
|
}
|
|
|
|
return 1 << bits;
|
|
}
|
|
|
|
/*
|
|
* board_get_system() generates a readable system name that will be printed during startup.
|
|
* Formatting can be whatever is helpful.
|
|
*/
|
|
|
|
void board_get_system(char *buffer, int len)
|
|
{
|
|
unsigned int chip_id, model_id, model_version, chip_version;
|
|
unsigned int reg, act, minfo, cinfo;
|
|
|
|
act = RTL93XX_CHIP_INFO_EN;
|
|
reg = RTL93XX_MODEL_NAME_INFO_REG;
|
|
minfo = ioread32(reg);
|
|
|
|
if ((minfo & 0xffec0000) == 0x93000000)
|
|
goto found;
|
|
|
|
act = RTL83XX_CHIP_INFO_EN;
|
|
reg = RTL839X_MODEL_NAME_INFO_REG;
|
|
minfo = ioread32(reg);
|
|
if ((minfo & 0xfff80000) == 0x83900000)
|
|
goto found;
|
|
|
|
iowrite32(0x3, RTL838X_INT_RW_CTRL_REG);
|
|
reg = RTL838X_MODEL_NAME_INFO_REG;
|
|
minfo = ioread32(reg);
|
|
found:
|
|
iowrite32(act, reg + 4);
|
|
cinfo = ioread32(reg + 4);
|
|
|
|
model_id = minfo >> 16;
|
|
model_version = (minfo >> 11) & 0x1f;
|
|
chip_id = cinfo & 0xffff;
|
|
|
|
if (model_id >= 0x9300)
|
|
chip_version = minfo & 0xf;
|
|
else if (model_id >= 0x8390)
|
|
chip_version = (minfo >> 1) & 0x1f;
|
|
else
|
|
chip_version = ((cinfo >> 16) & 0x1f) - 1;
|
|
|
|
snprintf(buffer, len, "RTL%04X%c rev %c (%04x)", model_id,
|
|
model_version ? model_version + 64 : 0, chip_version + 65, chip_id);
|
|
}
|
|
|
|
/*
|
|
* board_panic() is called in critical cases. Whatever is needed can be done here. Maybe
|
|
* an automatic reboot can be issued some day. For now just halt processing.
|
|
*/
|
|
|
|
void board_panic(void)
|
|
{
|
|
printf("halt system\n");
|
|
while (1) {
|
|
}
|
|
}
|