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Refactoring and comment adding

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This commit is contained in:
CTCaer
2019-09-12 23:08:38 +03:00
parent c5b64a2b58
commit a8d529cf6a
47 changed files with 477 additions and 300 deletions
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42
bootloader/storage/sdmmc_driver.c
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@@ -19,7 +19,6 @@
#include "mmc.h"
#include "sdmmc.h"
#include "../config/config.h"
#include "../gfx/gfx.h"
#include "../power/max7762x.h"
#include "../soc/bpmp.h"
@@ -33,8 +32,6 @@
//#define DPRINTF(...) gfx_printf(__VA_ARGS__)
#define DPRINTF(...)
extern hekate_config h_cfg;
/*! SCMMC controller base addresses. */
static const u32 _sdmmc_bases[4] = {
0x700B0000,
@@ -125,6 +122,7 @@ static int _sdmmc_config_ven_ceata_clk(sdmmc_t *sdmmc, u32 id)
{
if (!sdmmc->venclkctl_set)
return 0;
tap_val = sdmmc->venclkctl_tap;
}
else
@@ -235,7 +233,7 @@ int sdmmc_setup_clock(sdmmc_t *sdmmc, u32 type)
sdmmc->regs->hostctl2 |= SDHCI_CTRL_VDD_180;
break;
case 4:
// Non standard
// Non standard.
sdmmc->regs->hostctl2 = (sdmmc->regs->hostctl2 & SDHCI_CTRL_UHS_MASK) | HS400_BUS_SPEED;
sdmmc->regs->hostctl2 |= SDHCI_CTRL_VDD_180;
break;
@@ -513,13 +511,17 @@ static int _sdmmc_config_tuning_once(sdmmc_t *sdmmc, u32 cmd)
return 0;
_sdmmc_setup_read_small_block(sdmmc);
sdmmc->regs->norintstsen |= TEGRA_MMC_NORINTSTSEN_BUFFER_READ_READY;
sdmmc->regs->norintsts = sdmmc->regs->norintsts;
sdmmc->regs->clkcon &= ~TEGRA_MMC_CLKCON_SD_CLOCK_ENABLE;
_sdmmc_parse_cmd_48(sdmmc, cmd);
_sdmmc_get_clkcon(sdmmc);
usleep(1);
_sdmmc_reset(sdmmc);
sdmmc->regs->clkcon |= TEGRA_MMC_CLKCON_SD_CLOCK_ENABLE;
_sdmmc_get_clkcon(sdmmc);
@@ -535,10 +537,13 @@ static int _sdmmc_config_tuning_once(sdmmc_t *sdmmc, u32 cmd)
return 1;
}
}
_sdmmc_reset(sdmmc);
sdmmc->regs->norintstsen &= 0xFFDF;
_sdmmc_get_clkcon(sdmmc);
usleep((1000 * 8 + sdmmc->divisor - 1) / sdmmc->divisor);
return 0;
}
@@ -565,8 +570,8 @@ int sdmmc_config_tuning(sdmmc_t *sdmmc, u32 type, u32 cmd)
return 0;
}
sdmmc->regs->ventunctl0 = (sdmmc->regs->ventunctl0 & 0xFFFF1FFF) | flag;
sdmmc->regs->ventunctl0 = (sdmmc->regs->ventunctl0 & 0xFFFFE03F) | 0x40;
sdmmc->regs->ventunctl0 = (sdmmc->regs->ventunctl0 & 0xFFFF1FFF) | flag; // Tries.
sdmmc->regs->ventunctl0 = (sdmmc->regs->ventunctl0 & 0xFFFFE03F) | 0x40; // Multiplier.
sdmmc->regs->ventunctl0 |= 0x20000;
sdmmc->regs->hostctl2 |= SDHCI_CTRL_EXEC_TUNING;
@@ -579,6 +584,7 @@ int sdmmc_config_tuning(sdmmc_t *sdmmc, u32 type, u32 cmd)
if (sdmmc->regs->hostctl2 & SDHCI_CTRL_TUNED_CLK)
return 1;
return 0;
}
@@ -748,11 +754,14 @@ static int _sdmmc_stop_transmission_inner(sdmmc_t *sdmmc, u32 *rsp)
return 0;
_sdmmc_enable_interrupts(sdmmc);
cmd.cmd = MMC_STOP_TRANSMISSION;
cmd.arg = 0;
cmd.rsp_type = SDMMC_RSP_TYPE_1;
cmd.check_busy = 1;
_sdmmc_parse_cmdbuf(sdmmc, &cmd, false);
int res = _sdmmc_wait_request(sdmmc);
_sdmmc_mask_interrupts(sdmmc);
@@ -760,6 +769,7 @@ static int _sdmmc_stop_transmission_inner(sdmmc_t *sdmmc, u32 *rsp)
return 0;
_sdmmc_cache_rsp(sdmmc, rsp, 4, SDMMC_RSP_TYPE_1);
return _sdmmc_wait_prnsts_type1(sdmmc);
}
@@ -779,6 +789,7 @@ int sdmmc_stop_transmission(sdmmc_t *sdmmc, u32 *rsp)
int res = _sdmmc_stop_transmission_inner(sdmmc, rsp);
usleep((8000 + sdmmc->divisor - 1) / sdmmc->divisor);
if (should_disable_sd_clock)
sdmmc->regs->clkcon &= ~TEGRA_MMC_CLKCON_SD_CLOCK_ENABLE;
@@ -838,7 +849,7 @@ static int _sdmmc_update_dma(sdmmc_t *sdmmc)
while (1)
{
u16 intr = 0;
res = _sdmmc_check_mask_interrupt(sdmmc, &intr,
res = _sdmmc_check_mask_interrupt(sdmmc, &intr,
TEGRA_MMC_NORINTSTS_XFER_COMPLETE | TEGRA_MMC_NORINTSTS_DMA_INTERRUPT);
if (res < 0)
break;
@@ -911,6 +922,7 @@ static int _sdmmc_execute_cmd_inner(sdmmc_t *sdmmc, sdmmc_cmd_t *cmd, sdmmc_req_
{
if (blkcnt_out)
*blkcnt_out = blkcnt;
if (req->is_auto_cmd12)
sdmmc->rsp3 = sdmmc->regs->rspreg3;
}
@@ -930,6 +942,8 @@ static int _sdmmc_config_sdmmc1()
gpio_config(GPIO_PORT_Z, GPIO_PIN_1, GPIO_MODE_GPIO);
gpio_output_enable(GPIO_PORT_Z, GPIO_PIN_1, GPIO_OUTPUT_DISABLE);
usleep(100);
// Check if SD card is inserted.
if(!!gpio_read(GPIO_PORT_Z, GPIO_PIN_1))
return 0;
@@ -943,7 +957,7 @@ static int _sdmmc_config_sdmmc1()
*/
// Configure SDMMC1 pinmux.
APB_MISC(APB_MISC_GP_SDMMC1_CLK_LPBK_CONTROL) = 1;
APB_MISC(APB_MISC_GP_SDMMC1_CLK_LPBK_CONTROL) = 1; // Enable deep loopback for SDMMC1 CLK pad.
PINMUX_AUX(PINMUX_AUX_SDMMC1_CLK) = PINMUX_DRIVE_2X | PINMUX_INPUT_ENABLE | PINMUX_PARKED;
PINMUX_AUX(PINMUX_AUX_SDMMC1_CMD) = PINMUX_DRIVE_2X | PINMUX_INPUT_ENABLE | PINMUX_PARKED | PINMUX_PULL_UP;
PINMUX_AUX(PINMUX_AUX_SDMMC1_DAT3) = PINMUX_DRIVE_2X | PINMUX_INPUT_ENABLE | PINMUX_PARKED | PINMUX_PULL_UP;
@@ -1014,18 +1028,23 @@ int sdmmc_init(sdmmc_t *sdmmc, u32 id, u32 power, u32 bus_width, u32 type, int n
sdmmc->regs->sdmemcmppadctl = (sdmmc->regs->sdmemcmppadctl & 0xF) | 7;
if (!_sdmmc_autocal_config_offset(sdmmc, power))
return 0;
_sdmmc_autocal_execute(sdmmc, power);
if (_sdmmc_enable_internal_clock(sdmmc))
{
sdmmc_set_bus_width(sdmmc, bus_width);
_sdmmc_set_voltage(sdmmc, power);
if (sdmmc_setup_clock(sdmmc, type))
{
sdmmc_sd_clock_ctrl(sdmmc, no_sd);
_sdmmc_sd_clock_enable(sdmmc);
_sdmmc_get_clkcon(sdmmc);
return 1;
}
return 0;
}
return 0;
@@ -1044,8 +1063,8 @@ void sdmmc_end(sdmmc_t *sdmmc)
{
gpio_output_enable(GPIO_PORT_E, GPIO_PIN_4, GPIO_OUTPUT_DISABLE);
max77620_regulator_enable(REGULATOR_LDO2, 0);
h_cfg.sd_timeoff = get_tmr_ms(); // Some sandisc U1 cards need 100ms for a power cycle.
msleep(1); // To power cycle, min 1ms without power is needed.
sd_power_cycle_time_start = get_tmr_ms(); // Some sandisc U1 cards need 100ms for a power cycle.
usleep(1000); // To power cycle, min 1ms without power is needed.
}
_sdmmc_get_clkcon(sdmmc);
@@ -1082,6 +1101,7 @@ int sdmmc_execute_cmd(sdmmc_t *sdmmc, sdmmc_cmd_t *cmd, sdmmc_req_t *req, u32 *b
int res = _sdmmc_execute_cmd_inner(sdmmc, cmd, req, blkcnt_out);
usleep((8000 + sdmmc->divisor - 1) / sdmmc->divisor);
if (should_disable_sd_clock)
sdmmc->regs->clkcon &= ~TEGRA_MMC_CLKCON_SD_CLOCK_ENABLE;
@@ -1119,7 +1139,7 @@ int sdmmc_enable_low_voltage(sdmmc_t *sdmmc)
{
sdmmc->regs->clkcon |= TEGRA_MMC_CLKCON_SD_CLOCK_ENABLE;
_sdmmc_get_clkcon(sdmmc);
msleep(1);
usleep(1000);
if ((sdmmc->regs->prnsts & 0xF00000) == 0xF00000)
return 1;
}