ElicMagus
/
aw_t113_spl
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Dram started!

Browse Source
master
Трушников Николай Дмитриевич 2 years ago
parent d7b3cda3f7
commit c85111e386
2 changed files with 346 additions and 123 deletions
Show Stats Download Patch File Download Diff File

413
src/dram/mod.rs
Unescape Escape View File

@ -5,8 +5,31 @@ use crate::{
const RAM_BASE: u32 = 0x40000000;
static cfg1: [u8; 22] = [
1u8, 9u8, 3u8, 7u8, 8u8, 18u8, 4u8, 13u8, 5u8, 6u8, 10u8, 2u8, 14u8, 12u8, 0u8, 0u8, 21u8,
17u8, 20u8, 19u8, 11u8, 22u8,
];
static cfg2: [u8; 22] = [
4, 9, 3, 7, 8, 18, 1, 13, 2, 6, 10, 5, 14, 12, 0, 0, 21, 17, 20, 19, 11, 22,
];
static cfg3: [u8; 22] = [
1, 7, 8, 12, 10, 18, 4, 13, 5, 6, 3, 2, 9, 0, 0, 0, 21, 17, 20, 19, 11, 22,
];
static cfg4: [u8; 22] = [
4, 12, 10, 7, 8, 18, 1, 13, 2, 6, 3, 5, 9, 0, 0, 0, 21, 17, 20, 19, 11, 22,
];
static cfg5: [u8; 22] = [
13, 2, 7, 9, 12, 19, 5, 1, 6, 3, 4, 8, 10, 0, 0, 0, 21, 22, 18, 17, 11, 20,
];
static cfg6: [u8; 22] = [
3, 10, 7, 13, 9, 11, 1, 2, 4, 6, 8, 5, 12, 0, 0, 0, 20, 1, 0, 21, 22, 17,
];
static cfg7: [u8; 22] = [
3, 2, 4, 7, 9, 1, 17, 12, 18, 14, 13, 8, 15, 6, 10, 5, 19, 22, 16, 21, 20, 11,
];
#[repr(C)]
#[derive(Clone, Copy, Default, Debug)]
#[derive(Clone, Copy, Debug)]
pub struct DramPara_t {
//normal configuration
dram_clk: u32,
@ -39,8 +62,40 @@ pub struct DramPara_t {
dram_tpr13: u32,
}
impl DramPara_t
{
impl Default for DramPara_t {
fn default() -> Self {
DramPara_t {
dram_clk : 792,
dram_type : 3,
dram_zq : 0x7b7bfb,
dram_odt_en : 0x00,
dram_para1 : 0x000010d2,
dram_para2 : 0x0000,
dram_mr0 : 0x1c70,
dram_mr1 : 0x042,
dram_mr2 : 0x18,
dram_mr3 : 0x0,
dram_tpr0 : 0x004A2195,
dram_tpr1 : 0x02423190,
dram_tpr2 : 0x0008B061,
dram_tpr3 : 0xB4787896,
dram_tpr4 : 0x0,
dram_tpr5 : 0x48484848,
dram_tpr6 : 0x00000048,
dram_tpr7 : 0x1620121e,
dram_tpr8 : 0x0,
dram_tpr9 : 0x0,
dram_tpr10 : 0x0,
dram_tpr11 : 0x00340000,
dram_tpr12 : 0x00000046,
dram_tpr13 : 0x34000100,
}
}
}
impl DramPara_t {
pub fn init(mut self) -> u32 {
let mut rc: u32;
let mem_size: u32;
@ -63,6 +118,7 @@ impl DramPara_t
// Set voltage
self.vol_set();
print!("Volts\r\n");
// Set SDRAM controller auto config
if (self.dram_tpr13 & 0x1) == 0 {
@ -157,7 +213,7 @@ impl DramPara_t
self.enable_all_master();
if (self.dram_tpr13 & (1 << 28)) != 0 {
rc = read32(0x70005d4);
if ((rc & (1 << 16))!=0 || self.simple_wr_test(mem_size, 4096)!=0) {
if ((rc & (1 << 16)) != 0 || self.simple_wr_test(mem_size, 4096) != 0) {
return 0;
}
}
@ -223,6 +279,7 @@ impl DramPara_t
print!("[ERROR DEBUG] auto scan dram rank & width failed !\r\n");
return 0;
}
print!("asszi\r\n");
if ((self.dram_tpr13 & (1 << 0)) == 0) && (self.auto_scan_dram_size() == 0) {
print!("[ERROR DEBUG] auto scan dram size failed !\r\n");
return 0;
@ -270,10 +327,16 @@ impl DramPara_t
offs = 0;
// write test pattern
// for (i = 0, ptr = RAM_BASE; i < 64; i++, ptr += 4) {
// write32(ptr, (i & 1) ? ptr : ~ptr);
// }
print!("test\r\n");
i=0;
ptr = RAM_BASE;
while i < 64 {
write32(ptr, if i & 1 !=0 {ptr} else {!ptr});
i+=1;
ptr += 4;
}
rank = 0;
while rank < maxrank {
// Set row mode
rval = read32(mc_work_mode);
@ -508,17 +571,12 @@ impl DramPara_t
fn mctl_core_init(self) -> u32 {
self.mctl_sys_init();
self.mctl_vrefzq_init();
self.mctl_com_init();
self.mctl_phy_ac_remapping();
self.auto_set_timing_para();
let res = self.mctl_channel_init(0);
return res;
res
}
// Init the controller channel. The key part is placing commands in the main
@ -562,7 +620,7 @@ impl DramPara_t
// 0x3103208 undocumented
write32(0x3103208, read32(0x3103208) | 2);
// eye_delay_compensation(para);
self.eye_delay_compensation();
// set PLL SSCG ?
//
@ -776,6 +834,101 @@ impl DramPara_t
return 1;
}
fn eye_delay_compensation(self) // s1
{
let mut val=0;
let mut ptr=0;
// DATn0IOCR, n = 0...7
ptr = 0x3103310u32;
while ptr!=0x3103334u32 {
val = read32(ptr);
val |= (self.dram_tpr11 << 9) & 0x1e00;
val |= (self.dram_tpr12 << 1) & 0x001e;
write32(ptr, val);
ptr += 4;
}
// DATn1IOCR, n = 0...7
ptr=0x3103390;
while ptr!=0x31033b4 {
val = read32(ptr);
val |= ((self.dram_tpr11 >> 4) << 9) & 0x1e00;
val |= ((self.dram_tpr12 >> 4) << 1) & 0x001e;
write32(ptr, val);
ptr += 4;
}
// PGCR0: assert AC loopback FIFO reset
val = read32(0x3103100);
val &= 0xfbffffff;
write32(0x3103100, val);
// ??
val = read32(0x3103334);
val |= ((self.dram_tpr11 >> 16) << 9) & 0x1e00;
val |= ((self.dram_tpr12 >> 16) << 1) & 0x001e;
write32(0x3103334, val);
val = read32(0x3103338);
val |= ((self.dram_tpr11 >> 16) << 9) & 0x1e00;
val |= ((self.dram_tpr12 >> 16) << 1) & 0x001e;
write32(0x3103338, val);
val = read32(0x31033b4);
val |= ((self.dram_tpr11 >> 20) << 9) & 0x1e00;
val |= ((self.dram_tpr12 >> 20) << 1) & 0x001e;
write32(0x31033b4, val);
val = read32(0x31033b8);
val |= ((self.dram_tpr11 >> 20) << 9) & 0x1e00;
val |= ((self.dram_tpr12 >> 20) << 1) & 0x001e;
write32(0x31033b8, val);
val = read32(0x310333c);
val |= ((self.dram_tpr11 >> 16) << 25) & 0x1e000000;
write32(0x310333c, val);
val = read32(0x31033bc);
val |= ((self.dram_tpr11 >> 20) << 25) & 0x1e000000;
write32(0x31033bc, val);
// PGCR0: release AC loopback FIFO reset
val = read32(0x3103100);
val |= 0x04000000;
write32(0x3103100, val);
sdelay(1);
ptr = 0x3103240;
while ptr!=0x310327c {
val = read32(ptr);
val |= ((self.dram_tpr10 >> 4) << 8) & 0x0f00;
write32(ptr, val);
ptr += 4;
}
ptr= 0x3103228;
while ptr!=0x3103240 {
val = read32(ptr);
val |= ((self.dram_tpr10 >> 4) << 8) & 0x0f00;
write32(ptr, val);
ptr += 4;
}
val = read32(0x3103218);
val |= (self.dram_tpr10 << 8) & 0x0f00;
write32(0x3103218, val);
val = read32(0x310321c);
val |= (self.dram_tpr10 << 8) & 0x0f00;
write32(0x310321c, val);
val = read32(0x3103280);
val |= ((self.dram_tpr10 >> 12) << 8) & 0x0f00;
write32(0x3103280, val);
}
// Main purpose of the auto_set_timing routine seems to be to calculate all
// timing settings for the specific type of sdram used. Read together with
// an sdram datasheet for context on the various variables.
@ -805,8 +958,8 @@ impl DramPara_t
vtype = self.dram_type;
tpr13 = self.dram_tpr13;
// ddr_debug("vtype = %d\r\n", type);
// ddr_debug("tpr13 = %p\r\n", tpr13);
print!("vtype = {:?}\r\n", vtype);
print!("tpr13 = {:?}\r\n", tpr13);
if (self.dram_tpr13 & 0x2) != 0 {
// dram_tpr0
@ -826,15 +979,14 @@ impl DramPara_t
trfc = ((self.dram_tpr2 >> 12) & 0x1ff) as u16; // [20:12]
trefi = ((self.dram_tpr2 >> 0) & 0xfff) as u16; // [11:0 ]
} else {
let mut frq2 = freq >> 1; // s0
if vtype == 3 {
// DDR3
// trfc = auto_cal_timing(350, frq2);
// trefi = auto_cal_timing(7800, frq2) / 32 + 1; // XXX
// twr = auto_cal_timing(8, frq2);
// trcd = auto_cal_timing(15, frq2);
trfc = self.auto_cal_timing(350 , frq2 ) as u16;
trefi = (self.auto_cal_timing(7800, frq2) / 32 + 1) as u16; // XXX
twr = self.auto_cal_timing(8, frq2 as u32) as u8;
trcd = self.auto_cal_timing(15, frq2 as u32) as u8;
twtr = twr + 2; // + 2 ? XXX
if twr < 2 {
twtr = 2;
@ -844,57 +996,57 @@ impl DramPara_t
twr = 2;
}
if freq <= 800 {
// tfaw = auto_cal_timing(50, frq2);
// trrd = auto_cal_timing(10, frq2);
tfaw = self.auto_cal_timing(50, frq2 as u32) as u8;
trrd = self.auto_cal_timing(10, frq2 as u32) as u8;
if trrd < 2 {
trrd = 2;
}
// trc = auto_cal_timing(53, frq2);
// tras = auto_cal_timing(38, frq2);
trc = self.auto_cal_timing(53, frq2 as u32) as u8;
tras = self.auto_cal_timing(38, frq2 as u32) as u8;
txp = trrd; // 10
trp = trcd; // 15
} else {
// tfaw = auto_cal_timing(35, frq2);
// trrd = auto_cal_timing(10, frq2);
tfaw = self.auto_cal_timing(35, frq2 as u32) as u8;
trrd = self.auto_cal_timing(10, frq2 as u32) as u8;
if trrd < 2 {
trrd = 2;
}
// trcd = auto_cal_timing(14, frq2);
// trc = auto_cal_timing(48, frq2);
// tras = auto_cal_timing(34, frq2);
trcd = self.auto_cal_timing(14, frq2) as u8;
trc = self.auto_cal_timing(48, frq2) as u8;
tras = self.auto_cal_timing(34, frq2) as u8;
txp = trrd; // 10
trp = trcd; // 14
}
// #if 1
} else if vtype == 2 {
// DDR2
// tfaw = auto_cal_timing(50, frq2);
// trrd = auto_cal_timing(10, frq2);
// trcd = auto_cal_timing(20, frq2);
// trc = auto_cal_timing(65, frq2);
// twtr = auto_cal_timing(8, frq2);
// trp = auto_cal_timing(15, frq2);
// tras = auto_cal_timing(45, frq2);
// trefi = auto_cal_timing(7800, frq2) / 32;
// trfc = auto_cal_timing(328, frq2);
tfaw = self.auto_cal_timing(50, frq2) as u8;
trrd = self.auto_cal_timing(10, frq2) as u8;
trcd = self.auto_cal_timing(20, frq2) as u8;
trc = self.auto_cal_timing(65, frq2) as u8;
twtr = self.auto_cal_timing(8, frq2) as u8;
trp = self.auto_cal_timing(15, frq2) as u8;
tras = self.auto_cal_timing(45, frq2) as u8;
trefi =(self.auto_cal_timing(7800, frq2) / 32) as u16;
trfc = self.auto_cal_timing(328, frq2) as u16;
txp = 2;
twr = trp; // 15
} else if vtype == 6 {
// LPDDR2
// tfaw = auto_cal_timing(50, frq2);
tfaw = self.auto_cal_timing(50, frq2) as u8;
if tfaw < 4 {
tfaw = 4;
}
// trrd = auto_cal_timing(10, frq2);
trrd = self.auto_cal_timing(10, frq2) as u8;
if trrd == 0 {
trrd = 1;
}
// trcd = auto_cal_timing(24, frq2);
trcd = self.auto_cal_timing(24, frq2) as u8;
if trcd < 2 {
trcd = 2;
}
// trc = auto_cal_timing(70, frq2);
// txp = auto_cal_timing(8, frq2);
trc = self.auto_cal_timing(70, frq2) as u8;
txp = self.auto_cal_timing(8, frq2) as u8;
if txp == 0 {
txp = 1;
twtr = 2;
@ -905,41 +1057,41 @@ impl DramPara_t
twtr = 2;
}
}
// twr = auto_cal_timing(15, frq2);
twr = self.auto_cal_timing(15, frq2) as u8;
if twr < 2 {
twr = 2;
}
// trp = auto_cal_timing(17, frq2);
// tras = auto_cal_timing(42, frq2);
// trefi = auto_cal_timing(3900, frq2) / 32;
// trfc = auto_cal_timing(210, frq2);
trp = self.auto_cal_timing(17, frq2) as u8;
tras = self.auto_cal_timing(42, frq2) as u8;
trefi = (self.auto_cal_timing(3900, frq2) / 32) as u16;
trfc = self.auto_cal_timing(210, frq2) as u16;
} else if vtype == 7 {
// LPDDR3
// tfaw = auto_cal_timing(50, frq2);
tfaw = self.auto_cal_timing(50, frq2) as u8;
if tfaw < 4 {
tfaw = 4;
}
// trrd = auto_cal_timing(10, frq2);
trrd = self.auto_cal_timing(10, frq2) as u8;
if trrd == 0 {
trrd = 1;
}
// trcd = auto_cal_timing(24, frq2);
trcd = self.auto_cal_timing(24, frq2) as u8;
if trcd < 2 {
trcd = 2;
}
// trc = auto_cal_timing(70, frq2);
// twtr = auto_cal_timing(8, frq2);
trc = self.auto_cal_timing(70, frq2) as u8;
twtr = self.auto_cal_timing(8, frq2) as u8;
if twtr < 2 {
twtr = 2;
}
// twr = auto_cal_timing(15, frq2);
twr = self.auto_cal_timing(15, frq2) as u8;
if twr < 2 {
twr = 2;
}
// trp = auto_cal_timing(17, frq2);
// tras = auto_cal_timing(42, frq2);
// trefi = auto_cal_timing(3900, frq2) / 32;
// trfc = auto_cal_timing(210, frq2);
trp = self.auto_cal_timing(17, frq2) as u8;
tras = self.auto_cal_timing(42, frq2) as u8;
trefi = (self.auto_cal_timing(3900, frq2) / 32) as u16;
trfc = self.auto_cal_timing(210, frq2) as u16;
txp = twtr;
// #endif
} else {
@ -959,11 +1111,15 @@ impl DramPara_t
// assign the value back to the DRAM structure
tccd = 2;
trtp = 4; // not in .S ?
self.dram_tpr0 = ((trc as u32) << 0) | ((trcd as u32) << 6) | ((trrd as u32) << 11) | ((tfaw as u32) << 15) | ((tccd as u32) << 21);
self.dram_tpr1 = ((tras as u32)<< 0)
| ((trp as u32)<< 6)
self.dram_tpr0 = ((trc as u32) << 0)
| ((trcd as u32) << 6)
| ((trrd as u32) << 11)
| ((tfaw as u32) << 15)
| ((tccd as u32) << 21);
self.dram_tpr1 = ((tras as u32) << 0)
| ((trp as u32) << 6)
| ((twr as u32) << 11)
| ((trtp as u32)<< 15)
| ((trtp as u32) << 15)
| ((twtr as u32) << 20)
| ((txp as u32) << 23);
self.dram_tpr2 = ((trefi as u32) << 0) | ((trfc as u32) << 12);
@ -1251,19 +1407,19 @@ impl DramPara_t
write32(0x3103094, reg_val);
}
fn auto_cal_timing(mut self,time:u32,freq:u32)->u32{
let t:u32 = time * freq;
let rem = if t%1000 !=0 {1} else {0};
return t/1000+rem;
}
// This routine seems to have several remapping tables for 22 lines.
// It is unclear which lines are being remapped. It seems to pick
// table cfg7 for the Nezha board.
//
fn mctl_phy_ac_remapping(mut self) {
// cfg0[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
// static cfg1[] = {1, 9, 3, 7, 8, 18, 4, 13, 5, 6, 10, 2, 14, 12, 0, 0, 21, 17, 20, 19, 11, 22};
// static cfg2[] = {4, 9, 3, 7, 8, 18, 1, 13, 2, 6, 10, 5, 14, 12, 0, 0, 21, 17, 20, 19, 11, 22};
// static cfg3[] = {1, 7, 8, 12, 10, 18, 4, 13, 5, 6, 3, 2, 9, 0, 0, 0, 21, 17, 20, 19, 11, 22};
// static cfg4[] = {4, 12, 10, 7, 8, 18, 1, 13, 2, 6, 3, 5, 9, 0, 0, 0, 21, 17, 20, 19, 11, 22};
// static cfg5[] = {13, 2, 7, 9, 12, 19, 5, 1, 6, 3, 4, 8, 10, 0, 0, 0, 21, 22, 18, 17, 11, 20};
// static cfg6[] = {3, 10, 7, 13, 9, 11, 1, 2, 4, 6, 8, 5, 12, 0, 0, 0, 20, 1, 0, 21, 22, 17};
// static cfg7[] = {3, 2, 4, 7, 9, 1, 17, 12, 18, 14, 13, 8, 15, 6, 10, 5, 19, 22, 16, 21, 20, 11};
let mut cfg0 = [0u8; 22];
let mut fuse: u32 = 0;
let mut val: u32 = 0;
@ -1276,26 +1432,32 @@ impl DramPara_t
if ((self.dram_tpr13 >> 18) & 0x3) != 0 {
// memcpy_self(cfg0, cfg7, 22);
cfg0 = cfg7;
} else {
match fuse {
// #if 1
8 => {
// memcpy_self(cfg0, cfg2, 22);
cfg0 = cfg2;
}
9 => {
// memcpy_self(cfg0, cfg3, 22);
cfg0 = cfg3;
}
// #endif
10 => {
// memcpy_self(cfg0, cfg5, 22);
cfg0 = cfg5;
}
// #if 1
11 => {
// memcpy_self(cfg0, cfg4, 22);
cfg0 = cfg4;
}
12 => {
// memcpy_self(cfg0, cfg1, 22);
cfg0 = cfg1;
}
13 => {}
14 => {}
@ -1307,26 +1469,50 @@ impl DramPara_t
if fuse == 15 {
return;
}
// memcpy_self(cfg0, cfg6, 22);
cfg0 = cfg6;
}
if (self.dram_type == 2 || self.dram_type == 3) {
val = ((cfg0[4] as u32) << 25)
| ((cfg0[3] as u32) << 20)
| ((cfg0[2] as u32) << 15)
| ((cfg0[1] as u32) << 10)
| ((cfg0[0] as u32) << 5);
write32(0x3102500, val);
val = ((cfg0[10]as u32) << 25)
| ((cfg0[9] as u32)<< 20)
| ((cfg0[8] as u32)<< 15)
| ((cfg0[7] as u32)<< 10)
| ((cfg0[6] as u32)<< 5)
| (cfg0[5] as u32);
write32(0x3102504, val);
val =
((cfg0[15] as u32) << 20)
| ((cfg0[14] as u32) << 15)
| ((cfg0[13] as u32) << 10)
| ((cfg0[12] as u32) << 5)
| (cfg0[11] as u32);
write32(0x3102508, val);
val = ((cfg0[21] as u32) << 25)
| ((cfg0[20] as u32) << 20)
| ((cfg0[19] as u32) << 15)
| ((cfg0[18] as u32) << 10)
| ((cfg0[17] as u32) << 5)
| (cfg0[16] as u32);
write32(0x310250c, val);
val = ((cfg0[4] as u32) << 25)
| ((cfg0[3] as u32) << 20)
| ((cfg0[2] as u32) << 15)
| ((cfg0[1] as u32) << 10)
| ((cfg0[0] as u32) << 5)
| (1 as u32);
write32(0x3102500, val);
}
// if (self.dram_type == 2 || self.dram_type == 3) {
// val = (cfg0[4] << 25) | (cfg0[3] << 20) | (cfg0[2] << 15) | (cfg0[1] << 10) | (cfg0[0] << 5);
// write32(0x3102500, val);
// val = (cfg0[10] << 25) | (cfg0[9] << 20) | (cfg0[8] << 15) | (cfg0[7] << 10) | (cfg0[6] << 5) | cfg0[5];
// write32(0x3102504, val);
// val = (cfg0[15] << 20) | (cfg0[14] << 15) | (cfg0[13] << 10) | (cfg0[12] << 5) | cfg0[11];
// write32(0x3102508, val);
// val = (cfg0[21] << 25) | (cfg0[20] << 20) | (cfg0[19] << 15) | (cfg0[18] << 10) | (cfg0[17] << 5) | cfg0[16];
// write32(0x310250c, val);
// val = (cfg0[4] << 25) | (cfg0[3] << 20) | (cfg0[2] << 15) | (cfg0[1] << 10) | (cfg0[0] << 5) | 1;
// write32(0x3102500, val);
// }
}
// The main purpose of this routine seems to be to copy an address configuration
@ -1480,6 +1666,7 @@ impl DramPara_t
// mCTL clock enable
write32(0x310300c, 0x8000);
sdelay(10);
}
// Purpose of this routine seems to be to initialize the PLL driving
@ -1504,10 +1691,17 @@ impl DramPara_t
val |= (n - 1) << 8; // set PLL division
val |= 0xc0000000; // enable PLL and LDO
val &= 0xdfffffff;
write32(0x2001010, val | 0x20000000);
val |= 0x20000000;
write32(0x2001010, val);
// wait for PLL to lock
while (read32(0x2001010) & 0x10000000) == 0 {}
val=0;
while val==0{
val = read32(0x2001010) & 0x10000000;
// print!("val3={:08X}\r\n",val);
} //тут застряли
sdelay(20);
@ -1523,11 +1717,41 @@ impl DramPara_t
write32(0x2001800, val);
return n * 24;
}
fn get_size(self) -> u32 {
return 0u32;
let mut rval:u32;
let mut temp=0;
let mut size0=0;
let mut size1=0;
rval = read32(0x3102000); // MC_WORK_MODE0
temp = (rval >> 8) & 0xf; // page size - 3
temp += (rval >> 4) & 0xf; // row width - 1
temp += (rval >> 2) & 0x3; // bank count - 2
temp -= 14; // 1MB = 20 bits, minus above 6 = 14
size0 = 1 << temp;
temp = rval & 0x3; // rank count = 0? -> done
if temp == 0 {
return size0;
}
rval = read32(0x3102004); // MC_WORK_MODE1
temp = rval & 0x3;
if temp == 0 { // two identical ranks
return 2 * size0;
}
temp = (rval >> 8) & 0xf; // page size - 3
temp += (rval >> 4) & 0xf; // row width - 1
temp += (rval >> 2) & 0x3; // bank number - 2
temp -= 14; // 1MB = 20 bits, minus above 6 = 14
size1 = 1 << temp;
return size0 + size1; // add size of each rank
}
fn enable_all_master(self) {
@ -1544,8 +1768,7 @@ impl DramPara_t
sdelay(10);
}
fn simple_wr_test(mut self,mem_size: u32, test: u32) -> u32 {
fn simple_wr_test(mut self, mem_size: u32, test: u32) -> u32 {
0u32
}
}

20
src/main.rs
Unescape Escape View File

@ -81,16 +81,16 @@ fn delay() {
#[panic_handler]
fn panic(info: &PanicInfo<'_>) -> ! {
let (location, line, column) = match info.location() {
Some(loc) => (loc.file(), loc.line(), loc.column()),
_ => ("???", 0, 0),
};
print!(
"Kernel panic!\n\n\
Panic location:\n File '{}', line {}, column {}\n\n\
",
location, line, column,
);
// let (location, line, column) = match info.location() {
// Some(loc) => (loc.file(), loc.line(), loc.column()),
// _ => ("???", 0, 0),
// };
// print!(
// "Kernel panic!\n\n\
// Panic location:\n File '{}', line {}, column {}\n\n\
// ",
// location, line, column,
// );
cpu::wfe();
loop {}
}

Write Preview
Loading…
Cancel
Save