h3n3/klipper
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

stm32: Add sdio support

Browse Source 
Adds sdio support for the stm32f4 to allow for SD card flash updates
without power cycling some boards, e.g. BTT Octopus Pro.

Signed-off-by: H. Gregor Molter <gregor.molter@secretlab.de>
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
H. Gregor Molter
2023-02-20 19:52:36 -05:00
committed by Kevin O'Connor
parent 848a78d1a5
commit d7bd7f1f4b
12 changed files with 1050 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
src/stm32/gpioperiph.c
View File

@@ -6,7 +6,7 @@
#include "internal.h" // gpio_peripheral
// Set the mode and extended function of a pin
// Set the mode, extended function and speed of a pin
void
gpio_peripheral(uint32_t gpio, uint32_t mode, int pullup)
{
@@ -16,7 +16,8 @@ gpio_peripheral(uint32_t gpio, uint32_t mode, int pullup)
gpio_clock_enable(regs);
// Configure GPIO
uint32_t mode_bits = mode & 0xf, func = (mode >> 4) & 0xf, od = mode >> 8;
uint32_t mode_bits = mode & 0xf, func = (mode >> 4) & 0xf;
uint32_t od = (mode >> 8) & 0x1, hs = (mode >> 9) & 0x1;
uint32_t pup = pullup ? (pullup > 0 ? 1 : 2) : 0;
uint32_t pos = gpio % 16, af_reg = pos / 8;
uint32_t af_shift = (pos % 8) * 4, af_msk = 0x0f << af_shift;
@@ -33,6 +34,6 @@ gpio_peripheral(uint32_t gpio, uint32_t mode, int pullup)
// stm32f4 is ~50Mhz at 40pF
// stm32g0 is ~30Mhz at 50pF
// stm32h7 is ~85Mhz at 50pF
uint32_t ospeed = CONFIG_MACH_STM32F0 ? 0x01 : 0x02;
uint32_t ospeed = hs ? 0x03 : (CONFIG_MACH_STM32F0 ? 0x01 : 0x02);
regs->OSPEEDR = (regs->OSPEEDR & ~m_msk) | (ospeed << m_shift);
}