mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-10 06:01:52 +00:00
Boot: Implement initial GPIO configuration
This commit is contained in:
hexkyz
GitHub
parent
0807aaea2b
commit
5025ba5e82
1 changed files with 190 additions and 13 deletions
|
|
@ -6,7 +6,11 @@
|
|||
#include <switch.h>
|
||||
#include <stratosphere.hpp>
|
||||
|
||||
#define GPIO_BASE 0x6000D000
|
||||
#define APB_MISC_BASE 0x70000000
|
||||
#define PINMUX_BASE (APB_MISC_BASE + 0x3000)
|
||||
#define PMC_BASE 0x7000E400
|
||||
#define MAX_GPIOS 0x3D
|
||||
|
||||
extern "C" {
|
||||
extern u32 __start__;
|
||||
|
|
@ -61,18 +65,182 @@ void __appExit(void) {
|
|||
smExit();
|
||||
}
|
||||
|
||||
static const std::tuple<u32, bool, bool> g_gpio_map[] = {
|
||||
std::make_tuple(0xFFFFFFFF, false, false), /* Invalid */
|
||||
std::make_tuple(0x000000CC, true, false), /* Port Z, Pin 4 */
|
||||
std::make_tuple(0x00000024, true, false), /* Port E, Pin 4 */
|
||||
std::make_tuple(0x0000003C, true, false), /* Port H, Pin 4 */
|
||||
std::make_tuple(0x000000DA, false, true), /* Port BB, Pin 2 */
|
||||
std::make_tuple(0x000000DB, true, false), /* Port BB, Pin 3 */
|
||||
std::make_tuple(0x000000DC, false, false), /* Port BB, Pin 4 */
|
||||
std::make_tuple(0x00000025, true, false), /* Port E, Pin 5 */
|
||||
std::make_tuple(0x00000090, false, false), /* Port S, Pin 0 */
|
||||
std::make_tuple(0x00000091, false, false), /* Port S, Pin 1 */
|
||||
std::make_tuple(0x00000096, true, false), /* Port S, Pin 6 */
|
||||
std::make_tuple(0x00000097, false, true), /* Port S, Pin 7 */
|
||||
std::make_tuple(0x00000026, false, false), /* Port E, Pin 6 */
|
||||
std::make_tuple(0x00000005, true, false), /* Port A, Pin 5 */
|
||||
std::make_tuple(0x00000078, false, false), /* Port P, Pin 0 */
|
||||
std::make_tuple(0x00000093, false, true), /* Port S, Pin 3 */
|
||||
std::make_tuple(0x0000007D, false, false), /* Port P, Pin 5 */
|
||||
std::make_tuple(0x0000007C, false, false), /* Port P, Pin 4 */
|
||||
std::make_tuple(0x0000007B, false, false), /* Port P, Pin 3 */
|
||||
std::make_tuple(0x0000007A, false, false), /* Port P, Pin 2 */
|
||||
std::make_tuple(0x000000BC, false, true), /* Port X, Pin 4 */
|
||||
std::make_tuple(0x000000AE, false, false), /* Port V, Pin 6 */
|
||||
std::make_tuple(0x000000BA, false, false), /* Port X, Pin 2 */
|
||||
std::make_tuple(0x000000B9, false, true), /* Port X, Pin 1 */
|
||||
std::make_tuple(0x000000BD, false, false), /* Port X, Pin 5 */
|
||||
std::make_tuple(0x000000BE, false, true), /* Port X, Pin 6 */
|
||||
std::make_tuple(0x000000BF, false, true), /* Port X, Pin 7 */
|
||||
std::make_tuple(0x000000C0, false, true), /* Port Y, Pin 0 */
|
||||
std::make_tuple(0x000000C1, false, false), /* Port Y, Pin 1 */
|
||||
std::make_tuple(0x000000A9, true, false), /* Port V, Pin 1 */
|
||||
std::make_tuple(0x000000AA, true, false), /* Port V, Pin 2 */
|
||||
std::make_tuple(0x00000055, true, false), /* Port K, Pin 5 */
|
||||
std::make_tuple(0x000000AD, true, false), /* Port V, Pin 5 */
|
||||
std::make_tuple(0x000000C8, false, true), /* Port Z, Pin 0 */
|
||||
std::make_tuple(0x000000CA, false, false), /* Port Z, Pin 2 */
|
||||
std::make_tuple(0x000000CB, false, true), /* Port Z, Pin 3 */
|
||||
std::make_tuple(0x0000004F, true, false), /* Port J, Pin 7 */
|
||||
std::make_tuple(0x00000050, false, false), /* Port K, Pin 0 */
|
||||
std::make_tuple(0x00000051, false, false), /* Port K, Pin 1 */
|
||||
std::make_tuple(0x00000052, false, false), /* Port K, Pin 2 */
|
||||
std::make_tuple(0x00000054, false, true), /* Port K, Pin 4 */
|
||||
std::make_tuple(0x00000056, false, true), /* Port K, Pin 6 */
|
||||
std::make_tuple(0x00000057, false, true), /* Port K, Pin 7 */
|
||||
std::make_tuple(0x00000053, true, false), /* Port K, Pin 3 */
|
||||
std::make_tuple(0x000000E3, true, false), /* Port CC, Pin 3 */
|
||||
std::make_tuple(0x00000038, true, false), /* Port H, Pin 0 */
|
||||
std::make_tuple(0x00000039, true, false), /* Port H, Pin 1 */
|
||||
std::make_tuple(0x0000003B, true, false), /* Port H, Pin 3 */
|
||||
std::make_tuple(0x0000003D, false, false), /* Port H, Pin 5 */
|
||||
std::make_tuple(0x0000003F, true, false), /* Port H, Pin 7 */
|
||||
std::make_tuple(0x00000040, true, false), /* Port I, Pin 0 */
|
||||
std::make_tuple(0x00000041, true, false), /* Port I, Pin 1 */
|
||||
std::make_tuple(0x0000003E, false, false), /* Port H, Pin 6 */
|
||||
std::make_tuple(0x000000E2, false, true), /* Port CC, Pin 2 */
|
||||
std::make_tuple(0x000000E4, true, false), /* Port CC, Pin 4 */
|
||||
std::make_tuple(0x0000003A, false, false), /* Port H, Pin 2 */
|
||||
std::make_tuple(0x000000C9, false, true), /* Port Z, Pin 1 */
|
||||
std::make_tuple(0x0000004D, true, false), /* Port J, Pin 5 */
|
||||
std::make_tuple(0x00000058, true, false), /* Port L, Pin 0 */
|
||||
std::make_tuple(0x0000003E, false, false), /* Port H, Pin 6 */
|
||||
std::make_tuple(0x00000026, false, false), /* Port E, Pin 6 */
|
||||
std::make_tuple(0xFFFFFFFF, false, false), /* Invalid */
|
||||
std::make_tuple(0x00000033, false, false), /* Port G, Pin 3 */
|
||||
std::make_tuple(0x0000001C, false, false), /* Port D, Pin 4 */
|
||||
std::make_tuple(0x000000D9, false, false), /* Port BB, Pin 1 */
|
||||
std::make_tuple(0x0000000C, false, false), /* Port B, Pin 4 */
|
||||
std::make_tuple(0x0000000D, false, false), /* Port B, Pin 5 */
|
||||
std::make_tuple(0x00000021, false, false), /* Port E, Pin 1 */
|
||||
std::make_tuple(0x00000027, false, false), /* Port E, Pin 7 */
|
||||
std::make_tuple(0x00000092, false, false), /* Port S, Pin 2 */
|
||||
std::make_tuple(0x00000095, false, false), /* Port S, Pin 5 */
|
||||
std::make_tuple(0x00000098, false, false), /* Port T, Pin 0 */
|
||||
std::make_tuple(0x00000010, false, false), /* Port C, Pin 0 */
|
||||
std::make_tuple(0x00000011, false, false), /* Port C, Pin 1 */
|
||||
std::make_tuple(0x00000012, false, false), /* Port C, Pin 2 */
|
||||
std::make_tuple(0x00000042, false, false), /* Port I, Pin 2 */
|
||||
std::make_tuple(0x000000E6, false, false), /* Port CC, Pin 6 */
|
||||
};
|
||||
|
||||
int gpio_configure(unsigned int gpio_pad_name) {
|
||||
/* Fetch this GPIO's pad descriptor */
|
||||
u32 gpio_pad_desc = std::get<0>(g_gpio_map[gpio_pad_name]);
|
||||
|
||||
/* Convert the GPIO pad descriptor into its register offset */
|
||||
u32 gpio_reg_offset = (((gpio_pad_desc << 0x03) & 0xFFFFFF00) | ((gpio_pad_desc >> 0x01) & 0x0C));
|
||||
|
||||
/* Extract the bit and lock values from the GPIO pad descriptor */
|
||||
u32 gpio_cnf_val = ((0x01 << ((gpio_pad_desc & 0x07) | 0x08)) | (0x01 << (gpio_pad_desc & 0x07)));
|
||||
|
||||
/* Write to the appropriate GPIO_CNF_x register (upper offset) */
|
||||
*((u32 *)gpio_base_vaddr + gpio_reg_offset + 0x80) = gpio_cnf_val;
|
||||
|
||||
/* Do a dummy read from GPIO_CNF_x register (lower offset) */
|
||||
gpio_cnf_val = *((u32 *)gpio_base_vaddr + gpio_reg_offset);
|
||||
|
||||
return gpio_cnf_val;
|
||||
}
|
||||
|
||||
int gpio_set_direction(unsigned int gpio_pad_name) {
|
||||
/* Fetch this GPIO's pad descriptor */
|
||||
u32 gpio_pad_desc = std::get<0>(g_gpio_map[gpio_pad_name]);
|
||||
|
||||
/* Fetch this GPIO's direction */
|
||||
bool is_out = std::get<1>(g_gpio_map[gpio_pad_name]);
|
||||
|
||||
/* Convert the GPIO pad descriptor into its register offset */
|
||||
u32 gpio_reg_offset = (((gpio_pad_desc << 0x03) & 0xFFFFFF00) | ((gpio_pad_desc >> 0x01) & 0x0C));
|
||||
|
||||
/* Set the direction bit and lock values (bug?) */
|
||||
u32 gpio_oe_val = ((0x01 << ((gpio_pad_desc & 0x07) | 0x08)) | (is_out << (gpio_pad_desc & 0x07)));
|
||||
|
||||
/* Write to the appropriate GPIO_OE_x register (upper offset) */
|
||||
*((u32 *)gpio_base_vaddr + gpio_reg_offset + 0x90) = gpio_oe_val;
|
||||
|
||||
/* Do a dummy read from GPIO_OE_x register (lower offset) */
|
||||
gpio_oe_val = *((u32 *)gpio_base_vaddr + gpio_reg_offset);
|
||||
|
||||
return gpio_oe_val;
|
||||
}
|
||||
|
||||
int gpio_set_output(unsigned int gpio_pad_name) {
|
||||
/* Fetch this GPIO's pad descriptor */
|
||||
u32 gpio_pad_desc = std::get<0>(g_gpio_map[gpio_pad_name]);
|
||||
|
||||
/* Fetch this GPIO's output value */
|
||||
bool is_high = std::get<2>(g_gpio_map[gpio_pad_name]);
|
||||
|
||||
/* Convert the GPIO pad descriptor into its register offset */
|
||||
u32 gpio_reg_offset = (((gpio_pad_desc << 0x03) & 0xFFFFFF00) | ((gpio_pad_desc >> 0x01) & 0x0C));
|
||||
|
||||
/* Set the output bit and lock values (bug?) */
|
||||
u32 gpio_out_val = ((0x01 << ((gpio_pad_desc & 0x07) | 0x08)) | (is_high << (gpio_pad_desc & 0x07)));
|
||||
|
||||
/* Write to the appropriate GPIO_OUT_x register (upper offset) */
|
||||
*((u32 *)gpio_base_vaddr + gpio_reg_offset + 0xA0) = gpio_out_val;
|
||||
|
||||
/* Do a dummy read from GPIO_OUT_x register (lower offset) */
|
||||
gpio_out_val = *((u32 *)gpio_base_vaddr + gpio_reg_offset);
|
||||
|
||||
return gpio_out_val;
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
consoleDebugInit(debugDevice_SVC);
|
||||
|
||||
Result rc;
|
||||
u64* pinmux_base_vaddr = NULL;
|
||||
u64* gpio_base_vaddr = NULL;
|
||||
u64* pmc_base_vaddr = NULL;
|
||||
|
||||
/* Map the APB MISC registers for PINMUX */
|
||||
rc = svcQueryIoMapping(pinmux_base_vaddr, APB_MISC_BASE, 0x4000);
|
||||
if (R_FAILED(rc)) {
|
||||
return rc;
|
||||
}
|
||||
|
||||
/* IO mapping failed */
|
||||
if (!pinmux_base_vaddr)
|
||||
fatalSimple(MAKERESULT(Module_Libnx, LibnxError_IoError));
|
||||
|
||||
/* Map the GPIO registers */
|
||||
rc = svcQueryIoMapping(gpio_base_vaddr, GPIO_BASE, 0x1000);
|
||||
if (R_FAILED(rc)) {
|
||||
return rc;
|
||||
}
|
||||
|
||||
/* IO mapping failed */
|
||||
if (!gpio_base_vaddr)
|
||||
fatalSimple(MAKERESULT(Module_Libnx, LibnxError_IoError));
|
||||
|
||||
/* Change GPIO voltage to 1.8v */
|
||||
if (kernelAbove200()) {
|
||||
/* TODO: svcReadWriteRegister */
|
||||
} else {
|
||||
u64* pmc_base_vaddr = NULL;
|
||||
|
||||
/* Map the PMC registers directly */
|
||||
rc = svcQueryIoMapping(pmc_base_vaddr, PMC_BASE, 0x3000);
|
||||
if (R_FAILED(rc)) {
|
||||
|
|
@ -83,14 +251,23 @@ int main(int argc, char **argv)
|
|||
if (!pmc_base_vaddr)
|
||||
fatalSimple(MAKERESULT(Module_Libnx, LibnxError_IoError));
|
||||
|
||||
/* Update PMC_PWR_DET_ENABLE and PMC_PWR_DET_VAL */
|
||||
/* Write to APBDEV_PMC_PWR_DET_0 */
|
||||
*((u32 *)pmc_base_vaddr + 0x48) |= 0x00A42000;
|
||||
|
||||
/* Write to APBDEV_PMC_PWR_DET_VAL_0 */
|
||||
*((u32 *)pmc_base_vaddr + 0xE4) &= 0xFF5BDFFF;
|
||||
}
|
||||
|
||||
/* Wait for changes to take effect */
|
||||
svcSleepThread(100000);
|
||||
|
||||
/* Setup all GPIOs from 0x01 to 0x3C */
|
||||
for (unsigned int i = 1; i < MAX_GPIOS; i++) {
|
||||
gpio_configure(i);
|
||||
gpio_set_direction(i);
|
||||
gpio_set_output(i);
|
||||
}
|
||||
|
||||
/* TODO: Hardware setup, NAND repair, NotifyBootFinished */
|
||||
|
||||
rc = 0;
|
||||
|
|
|
|||
Loading…
Reference in a new issue