From c41e05bab0b025691741d819ff372c08e285b99a Mon Sep 17 00:00:00 2001
From: Balamanikandan Gunasundar <balamanikandan.gunasundar@microchip.com>
Date: Tue, 25 Oct 2022 16:21:09 +0530
Subject: [PATCH] board: sam9x60ek: remove nand init from board file
Move this out of board file as this is done by the DM based NAND flash
driver. The EBI chip select configuration, iomux and timings are
handled by the driver
Signed-off-by: Balamanikandan Gunasundar <balamanikandan.gunasundar@microchip.com>
---
board/atmel/sam9x60ek/sam9x60ek.c | 59 -------------------------------
include/configs/sam9x60ek.h | 9 -----
2 files changed, 68 deletions(-)
diff --git a/board/atmel/sam9x60ek/sam9x60ek.c b/board/atmel/sam9x60ek/sam9x60ek.c
index a3e35f3066..04bf2bb5c9 100644
--- a/board/atmel/sam9x60ek/sam9x60ek.c
+++ b/board/atmel/sam9x60ek/sam9x60ek.c
@@ -24,62 +24,6 @@ DECLARE_GLOBAL_DATA_PTR;
void at91_prepare_cpu_var(void);
-#ifdef CONFIG_CMD_NAND
-static void sam9x60ek_nand_hw_init(void)
-{
- struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
- struct atmel_sfr *sfr = (struct atmel_sfr *)ATMEL_BASE_SFR;
- unsigned int csa;
-
- at91_pio3_set_a_periph(AT91_PIO_PORTD, 0, 1); /* NAND OE */
- at91_pio3_set_a_periph(AT91_PIO_PORTD, 1, 1); /* NAND WE */
- at91_pio3_set_a_periph(AT91_PIO_PORTD, 2, 0); /* NAND ALE */
- at91_pio3_set_a_periph(AT91_PIO_PORTD, 3, 0); /* NAND CLE */
- /* Enable NandFlash */
- at91_set_gpio_output(CFG_SYS_NAND_ENABLE_PIN, 1);
- /* Configure RDY/BSY */
- at91_set_gpio_input(CFG_SYS_NAND_READY_PIN, 1);
- at91_pio3_set_a_periph(AT91_PIO_PORTD, 6, 1);
- at91_pio3_set_a_periph(AT91_PIO_PORTD, 7, 1);
- at91_pio3_set_a_periph(AT91_PIO_PORTD, 8, 1);
- at91_pio3_set_a_periph(AT91_PIO_PORTD, 9, 1);
- at91_pio3_set_a_periph(AT91_PIO_PORTD, 10, 1);
- at91_pio3_set_a_periph(AT91_PIO_PORTD, 11, 1);
- at91_pio3_set_a_periph(AT91_PIO_PORTD, 12, 1);
- at91_pio3_set_a_periph(AT91_PIO_PORTD, 13, 1);
-
- at91_periph_clk_enable(ATMEL_ID_PIOD);
-
- /* Enable CS3 */
- csa = readl(&sfr->ebicsa);
- csa |= AT91_SFR_CCFG_EBI_CSA(3, 1) | AT91_SFR_CCFG_NFD0_ON_D16;
-
- /* Configure IO drive */
- csa &= ~AT91_SFR_CCFG_EBI_DRIVE_SAM9X60;
-
- writel(csa, &sfr->ebicsa);
-
- /* Configure SMC CS3 for NAND/SmartMedia */
- writel(AT91_SMC_SETUP_NWE(4), &smc->cs[3].setup);
-
- writel(AT91_SMC_PULSE_NWE(10) | AT91_SMC_PULSE_NCS_WR(20) |
- AT91_SMC_PULSE_NRD(10) | AT91_SMC_PULSE_NCS_RD(20),
- &smc->cs[3].pulse);
-
- writel(AT91_SMC_CYCLE_NWE(20) | AT91_SMC_CYCLE_NRD(20),
- &smc->cs[3].cycle);
-
- writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
-#ifdef CONFIG_SYS_NAND_DBW_16
- AT91_SMC_MODE_DBW_16 |
-#else /* CONFIG_SYS_NAND_DBW_8 */
- AT91_SMC_MODE_DBW_8 |
-#endif
- AT91_SMC_MODE_TDF | AT91_SMC_MODE_TDF_CYCLE(15),
- &smc->cs[3].mode);
-}
-#endif
-
#ifdef CONFIG_BOARD_LATE_INIT
int board_late_init(void)
{
@@ -122,9 +66,6 @@ int board_init(void)
/* address of boot parameters */
gd->bd->bi_boot_params = CFG_SYS_SDRAM_BASE + 0x100;
-#ifdef CONFIG_CMD_NAND
- sam9x60ek_nand_hw_init();
-#endif
return 0;
}
diff --git a/include/configs/sam9x60ek.h b/include/configs/sam9x60ek.h
index 27b39ebf41..cb7f35c7ca 100644
--- a/include/configs/sam9x60ek.h
+++ b/include/configs/sam9x60ek.h
@@ -26,13 +26,4 @@
#define CFG_SYS_SDRAM_BASE 0x20000000
#define CFG_SYS_SDRAM_SIZE 0x10000000 /* 256 megs */
-/* NAND flash */
-#ifdef CONFIG_CMD_NAND
-#define CFG_SYS_NAND_BASE 0x40000000
-#define CFG_SYS_NAND_MASK_ALE BIT(21)
-#define CFG_SYS_NAND_MASK_CLE BIT(22)
-#define CFG_SYS_NAND_ENABLE_PIN AT91_PIN_PD4
-#define CFG_SYS_NAND_READY_PIN AT91_PIN_PD5
-#endif
-
#endif
--
2.39.5