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video: atmel: Drop CONFIG_LCD_IN_PSRAM

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This relies on the old LCD implementation which is to be removed. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2022-10-16 15:49:00 -06:00 • committed by Anatolij Gustschin
parent 26cf75f92d
commit 65039696f7
1 changed files with 0 additions and 95 deletions
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95
board/ronetix/pm9263/pm9263.c
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@ -71,108 +71,13 @@ static void pm9263_nand_hw_init(void)
#ifdef CONFIG_LCD
#ifdef CONFIG_LCD_IN_PSRAM
#define PSRAM_CRE_PIN AT91_PIO_PORTB, 29
#define PSRAM_CTRL_REG (PHYS_PSRAM + PHYS_PSRAM_SIZE - 2)
/* Initialize the PSRAM memory */
static int pm9263_lcd_hw_psram_init(void)
{
unsigned long csa;
struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC1;
struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
/* Enable CS3 3.3v, no pull-ups */
csa = readl(&matrix->csa[1]) | AT91_MATRIX_CSA_DBPUC |
AT91_MATRIX_CSA_VDDIOMSEL_3_3V;
writel(csa, &matrix->csa[1]);
/* Configure SMC1 CS0 for PSRAM - 16-bit */
writel(AT91_SMC_SETUP_NWE(0) | AT91_SMC_SETUP_NCS_WR(0) |
AT91_SMC_SETUP_NRD(0) | AT91_SMC_SETUP_NCS_RD(0),
&smc->cs[0].setup);
writel(AT91_SMC_PULSE_NWE(7) | AT91_SMC_PULSE_NCS_WR(7) |
AT91_SMC_PULSE_NRD(2) | AT91_SMC_PULSE_NCS_RD(7),
&smc->cs[0].pulse);
writel(AT91_SMC_CYCLE_NWE(8) | AT91_SMC_CYCLE_NRD(8),
&smc->cs[0].cycle);
writel(AT91_SMC_MODE_DBW_16 | AT91_SMC_MODE_PMEN | AT91_SMC_MODE_PS_32,
&smc->cs[0].mode);
/* setup PB29 as output */
at91_set_pio_output(PSRAM_CRE_PIN, 1);
at91_set_pio_value(PSRAM_CRE_PIN, 0); /* set PSRAM_CRE_PIN to '0' */
/* PSRAM: write BCR */
readw(PSRAM_CTRL_REG);
readw(PSRAM_CTRL_REG);
writew(1, PSRAM_CTRL_REG); /* 0 - RCR,1 - BCR */
writew(0x9d4f, PSRAM_CTRL_REG); /* write the BCR */
/* write RCR of the PSRAM */
readw(PSRAM_CTRL_REG);
readw(PSRAM_CTRL_REG);
writew(0, PSRAM_CTRL_REG); /* 0 - RCR,1 - BCR */
/* set RCR; 0x10-async mode,0x90-page mode */
writew(0x90, PSRAM_CTRL_REG);
/*
* test to see if the PSRAM is MT45W2M16A or MT45W2M16B
* MT45W2M16B - CRE must be 0
* MT45W2M16A - CRE must be 1
*/
writew(0x1234, PHYS_PSRAM);
writew(0x5678, PHYS_PSRAM + 2);
/* test if the chip is MT45W2M16B */
if ((readw(PHYS_PSRAM) != 0x1234) || (readw(PHYS_PSRAM+2) != 0x5678)) {
/* try with CRE=1 (MT45W2M16A) */
at91_set_pio_value(PSRAM_CRE_PIN, 1); /* set PSRAM_CRE_PIN to '1' */
/* write RCR of the PSRAM */
readw(PSRAM_CTRL_REG);
readw(PSRAM_CTRL_REG);
writew(0, PSRAM_CTRL_REG); /* 0 - RCR,1 - BCR */
/* set RCR;0x10-async mode,0x90-page mode */
writew(0x90, PSRAM_CTRL_REG);
writew(0x1234, PHYS_PSRAM);
writew(0x5678, PHYS_PSRAM+2);
if ((readw(PHYS_PSRAM) != 0x1234)
|| (readw(PHYS_PSRAM + 2) != 0x5678))
return 1;
}
/* Bus matrix */
writel(AT91_MATRIX_PRA_M5(3), &matrix->pr[5].a);
writel(CONFIG_PSRAM_SCFG, &matrix->scfg[5]);
return 0;
}
#endif
static void pm9263_lcd_hw_init(void)
{
/* Power Control */
at91_set_pio_output(AT91_PIO_PORTA, 22, 1);
at91_set_pio_value(AT91_PIO_PORTA, 22, 0); /* power down */
#ifdef CONFIG_LCD_IN_PSRAM
/* initialize the PSRAM */
int stat = pm9263_lcd_hw_psram_init();
gd->fb_base = (stat == 0) ? PHYS_PSRAM : ATMEL_BASE_SRAM0;
#else
gd->fb_base = ATMEL_BASE_SRAM0;
#endif
}