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sdio: optimize mmc tuning operation [1/1]

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PD#SWPL-13914

Problem:
G12A TDMA affects the tuning, make tuning process
+/- dly is useless.

Solution:
add pdata save val operation.

Verify:
G12A_u212

Change-Id: I204dd989fae0d400b14725df068378be0262b1cc
Signed-off-by: Nan Li <nan.li@amlogic.com>
This commit is contained in:
Nan Li
2019-09-09 18:09:08 +08:00
committed by Luke Go
parent e15bde6367
commit 098bcdb77b
1 changed files with 13 additions and 7 deletions
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20
drivers/amlogic/mmc/aml_sd_emmc_v3.c
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@@ -1549,10 +1549,11 @@ static void pr_adj_info(char *name,
((x >> i) & 0x1) ? 1 : 0);
}
static unsigned long _test_fixed_adj(struct amlsd_host *host,
static unsigned long _test_fixed_adj(struct amlsd_platform *pdata,
struct aml_tuning_data *tuning_data, u32 opcode,
u32 adj, u32 div)
{
struct amlsd_host *host = pdata->host;
int i = 0;
u32 nmatch = 0;
u32 adjust = readl(host->base + SD_EMMC_ADJUST_V3);
@@ -1568,6 +1569,7 @@ static unsigned long _test_fixed_adj(struct amlsd_host *host,
gadjust->adj_enable = 1;
gadjust->cali_enable = 0;
gadjust->cali_rise = 0;
pdata->adj = adjust;
writel(adjust, host->base + SD_EMMC_ADJUST_V3);
nmatch = aml_sd_emmc_tuning_transfer(host->mmc, opcode,
blk_pattern, host->blk_test, blksz);
@@ -1613,8 +1615,12 @@ static unsigned long _swap_fixed_adj_win(unsigned long map,
}
static void set_fixed_adj_line_delay(u32 step,
struct amlsd_host *host)
struct amlsd_platform *pdata)
{
struct amlsd_host *host = pdata->host;
pdata->dly1 = AML_MOVE_DELAY1(step);
pdata->dly2 = AML_MOVE_DELAY2(step);
writel(AML_MOVE_DELAY1(step), host->base + SD_EMMC_DELAY1_V3);
writel(AML_MOVE_DELAY2(step), host->base + SD_EMMC_DELAY2_V3);
pr_info("step:%u, delay1:0x%x, delay2:0x%x\n",
@@ -1626,7 +1632,7 @@ static void set_fixed_adj_line_delay(u32 step,
* 2. re-range fixed adj point
* 3. retry
*/
static u32 _find_fixed_adj_valid_win(struct amlsd_host *host,
static u32 _find_fixed_adj_valid_win(struct amlsd_platform *pdata,
struct aml_tuning_data *tuning_data, u32 opcode,
unsigned long *fixed_adj_map, u32 div)
{
@@ -1643,8 +1649,8 @@ static u32 _find_fixed_adj_valid_win(struct amlsd_host *host,
for (; step <= 63;) {
pr_info("[%s]retry test fixed adj...\n", __func__);
step += AML_FIXED_ADJ_STEP;
set_fixed_adj_line_delay(step, host);
*cur_map = _test_fixed_adj(host, tuning_data, opcode, 0, div);
set_fixed_adj_line_delay(step, pdata);
*cur_map = _test_fixed_adj(pdata, tuning_data, opcode, 0, div);
/*pr_adj_info("cur_map", *cur_map, 0, div);*/
bitmap_and(tmp, prev_map, cur_map, div);
bitmap_xor(dst, prev_map, tmp, div);
@@ -1659,7 +1665,7 @@ static u32 _find_fixed_adj_valid_win(struct amlsd_host *host,
*prev_map, fir_adj, div);
ret = _find_fixed_adj_mid(*prev_map, fir_adj, div);
if (ret != NO_FIXED_ADJ_MID) {
set_fixed_adj_line_delay(0, host);
set_fixed_adj_line_delay(0, pdata);
return ret;
}
@@ -1821,7 +1827,7 @@ tunning:
&& (clk_div <= AML_FIXED_ADJ_MAX)
&& (clk_div >= AML_FIXED_ADJ_MIN)
&& !all_flag) {
adj_delay_find = _find_fixed_adj_valid_win(host,
adj_delay_find = _find_fixed_adj_valid_win(pdata,
tuning_data, opcode, fixed_adj_map, clk_div);
} else if (best_win_size == clk_div) {
all_flag = true;