[PATCH v2 10/11] configs: tdx: apalis_imx6: drop hw v1.0 support

[Marcel Ziswiler <marcel@ziswiler.com>]

From: Marcel Ziswiler <marcel.ziswiler@toradex.com>

Drop optional support for the ancient Apalis iMX6 V1.0 hardware which
had the UART wired as DCE rather than DTE.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>

---

Changes in v2:
- Also drop setup_dcemode_uart() and setup_iomux_dce_uart() which are
  now unused.

 board/toradex/apalis_imx6/apalis_imx6.c | 38 ++-----------------------
 include/configs/apalis_imx6.h           |  6 +---
 2 files changed, 3 insertions(+), 41 deletions(-)

diff --git a/board/toradex/apalis_imx6/apalis_imx6.c b/board/toradex/apalis_imx6/apalis_imx6.c
index a78d52d3fac..5604c4646cf 100644
--- a/board/toradex/apalis_imx6/apalis_imx6.c
+++ b/board/toradex/apalis_imx6/apalis_imx6.c
@@ -304,13 +304,6 @@ static void setup_dtemode_uart(void)
 	clrbits_le32((u32 *)(UART4_BASE + UCR3), UCR3_DCD | UCR3_RI);
 	clrbits_le32((u32 *)(UART5_BASE + UCR3), UCR3_DCD | UCR3_RI);
 }
-static void setup_dcemode_uart(void)
-{
-	clrbits_le32((u32 *)(UART1_BASE + UFCR), UFCR_DCEDTE);
-	clrbits_le32((u32 *)(UART2_BASE + UFCR), UFCR_DCEDTE);
-	clrbits_le32((u32 *)(UART4_BASE + UFCR), UFCR_DCEDTE);
-	clrbits_le32((u32 *)(UART5_BASE + UFCR), UFCR_DCEDTE);
-}
 
 static void setup_iomux_dte_uart(void)
 {
@@ -318,12 +311,6 @@ static void setup_iomux_dte_uart(void)
 	imx_iomux_v3_setup_multiple_pads(uart1_pads_dte,
 					 ARRAY_SIZE(uart1_pads_dte));
 }
-static void setup_iomux_dce_uart(void)
-{
-	setup_dcemode_uart();
-	imx_iomux_v3_setup_multiple_pads(uart1_pads_dce,
-					 ARRAY_SIZE(uart1_pads_dce));
-}
 
 #ifdef CONFIG_USB_EHCI_MX6
 int board_ehci_hcd_init(int port)
@@ -665,11 +652,8 @@ int board_early_init_f(void)
 {
 	imx_iomux_v3_setup_multiple_pads(pwr_intb_pads,
 					 ARRAY_SIZE(pwr_intb_pads));
-#ifndef CONFIG_TDX_APALIS_IMX6_V1_0
 	setup_iomux_dte_uart();
-#else
-	setup_iomux_dce_uart();
-#endif
+
 	return 0;
 }
 
@@ -714,23 +698,7 @@ int board_late_init(void)
 	rev = get_board_revision();
 	snprintf(env_str, ARRAY_SIZE(env_str), "%.4x", rev);
 	env_set("board_rev", env_str);
-
-#ifndef CONFIG_TDX_APALIS_IMX6_V1_0
-	if ((rev & 0xfff0) == 0x0100) {
-		char *fdt_env;
-
-		/* reconfigure the UART to DCE mode dynamically if on V1.0 HW */
-		setup_iomux_dce_uart();
-
-		/* if using the default device tree, use version for V1.0 HW */
-		fdt_env = env_get("fdt_file");
-		if ((fdt_env != NULL) && (strcmp(FDT_FILE, fdt_env) == 0)) {
-			env_set("fdt_file", FDT_FILE_V1_0);
-			printf("patching fdt_file to " FDT_FILE_V1_0 "\n");
-		}
-	}
-#endif /* CONFIG_TDX_APALIS_IMX6_V1_0 */
-#endif /* CONFIG_REVISION_TAG */
+#endif /* CONFIG_BOARD_LATE_INIT */
 
 #ifdef CONFIG_CMD_USB_SDP
 	if (is_boot_from_usb()) {
@@ -1129,10 +1097,8 @@ void board_init_f(ulong dummy)
 	/* UART clocks enabled and gd valid - init serial console */
 	preloader_console_init();
 
-#ifndef CONFIG_TDX_APALIS_IMX6_V1_0
 	/* Make sure we use dte mode */
 	setup_dtemode_uart();
-#endif
 
 	/* DDR initialization */
 	spl_dram_init();
diff --git a/include/configs/apalis_imx6.h b/include/configs/apalis_imx6.h
index 3a27bbb6c87..57fd3ce12d0 100644
--- a/include/configs/apalis_imx6.h
+++ b/include/configs/apalis_imx6.h
@@ -89,12 +89,8 @@
 	"ramdisk_addr_r=0x12200000\0" \
 	"scriptaddr=0x17000000\0"
 
-#ifndef CONFIG_TDX_APALIS_IMX6_V1_0
 #define FDT_FILE "imx6q-apalis-eval.dtb"
-#define FDT_FILE_V1_0 "imx6q-apalis_v1_0-eval.dtb"
-#else
-#define FDT_FILE "imx6q-apalis_v1_0-eval.dtb"
-#endif
+
 #define CONFIG_EXTRA_ENV_SETTINGS \
 	BOOTENV \
 	"boot_file=zImage\0" \
-- 
2.34.1