ARM: socfpga: Zap all the UART handling complexity

The UART reset handling is now done via reset framework using the
SoCFPGA reset driver. The UART console assignment is done using the
DM and console framework. Nuke all this comlexity, since it is just
duplicating the same functionality, badly.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <chin.liang.see@intel.com>
Cc: Dinh Nguyen <dinguyen@kernel.org>

1 files changed, 0 insertions, 127 deletions

diff --git a/arch/arm/mach-socfpga/misc_arria10.c b/arch/arm/mach-socfpga/misc_arria10.c
index 80bf2f036f..b59953068d 100644
--- a/arch/arm/mach-socfpga/misc_arria10.c
+++ b/arch/arm/mach-socfpga/misc_arria10.c
@@ -128,133 +128,6 @@ int arch_early_init_r(void)
 #endif
 
 /*
- * This function looking the 1st encounter UART peripheral,
- * and then return its offset of the dedicated/shared IO pin
- * mux. offset value (zero and above).
- */
-static int find_peripheral_uart(const void *blob,
-	int child, const char *node_name)
-{
-	int len;
-	fdt_addr_t base_addr = 0;
-	fdt_size_t size;
-	const u32 *cell;
-	u32 value, offset = 0;
-
-	base_addr = fdtdec_get_addr_size(blob, child, "reg", &size);
-	if (base_addr != FDT_ADDR_T_NONE) {
-		cell = fdt_getprop(blob, child, "pinctrl-single,pins",
-			&len);
-		if (cell != NULL) {
-			for (; len > 0; len -= (2 * sizeof(u32))) {
-				offset = fdt32_to_cpu(*cell++);
-				value = fdt32_to_cpu(*cell++);
-				/* Found UART peripheral. */
-				if (value == PINMUX_UART)
-					return offset;
-			}
-		}
-	}
-	return -EINVAL;
-}
-
-/*
- * This function looks up the 1st encounter UART peripheral,
- * and then return its offset of the dedicated/shared IO pin
- * mux. UART peripheral is found if the offset is not in negative
- * value.
- */
-static int is_peripheral_uart_true(const void *blob,
-	int node, const char *child_name)
-{
-	int child, len;
-	const char *node_name;
-
-	child = fdt_first_subnode(blob, node);
-
-	if (child < 0)
-		return -EINVAL;
-
-	node_name = fdt_get_name(blob, child, &len);
-
-	while (node_name) {
-		if (!strcmp(child_name, node_name))
-			return find_peripheral_uart(blob, child, node_name);
-
-		child = fdt_next_subnode(blob, child);
-		if (child < 0)
-			break;
-
-		node_name = fdt_get_name(blob, child, &len);
-	}
-
-	return -1;
-}
-
-/*
- * This function looking the 1st encounter UART dedicated IO peripheral,
- * and then return based address of the 1st encounter UART dedicated
- * IO peripheral.
- */
-unsigned int dedicated_uart_com_port(const void *blob)
-{
-	int node;
-
-	node = fdtdec_next_compatible(blob, 0,
-		 COMPAT_ALTERA_SOCFPGA_PINCTRL_SINGLE);
-	if (node < 0)
-		return 0;
-
-	if (is_peripheral_uart_true(blob, node, "dedicated") >= 0)
-		return SOCFPGA_UART1_ADDRESS;
-
-	return 0;
-}
-
-/*
- * This function looking the 1st encounter UART shared IO peripheral, and then
- * return based address of the 1st encounter UART shared IO peripheral.
- */
-unsigned int shared_uart_com_port(const void *blob)
-{
-	int node, ret;
-
-	node = fdtdec_next_compatible(blob, 0,
-		 COMPAT_ALTERA_SOCFPGA_PINCTRL_SINGLE);
-	if (node < 0)
-		return 0;
-
-	ret = is_peripheral_uart_true(blob, node, "shared");
-
-	if (ret == PINMUX_UART0_TX_SHARED_IO_OFFSET_Q1_3 ||
-	    ret == PINMUX_UART0_TX_SHARED_IO_OFFSET_Q2_11 ||
-	    ret == PINMUX_UART0_TX_SHARED_IO_OFFSET_Q3_3)
-		return SOCFPGA_UART0_ADDRESS;
-	else if (ret == PINMUX_UART1_TX_SHARED_IO_OFFSET_Q1_7 ||
-		ret == PINMUX_UART1_TX_SHARED_IO_OFFSET_Q3_7 ||
-		ret == PINMUX_UART1_TX_SHARED_IO_OFFSET_Q4_3)
-		return SOCFPGA_UART1_ADDRESS;
-
-	return 0;
-}
-
-/*
- * This function looking the 1st encounter UART peripheral, and then return
- * base address of the 1st encounter UART peripheral.
- */
-unsigned int uart_com_port(const void *blob)
-{
-	unsigned int ret;
-
-	ret = dedicated_uart_com_port(blob);
-
-	if (ret)
-		return ret;
-
-	return shared_uart_com_port(blob);
-}
-
-/*
  * Print CPU information
  */
 #if defined(CONFIG_DISPLAY_CPUINFO)