From 7e970c18f85f99acc678d90128b6e01dce1bf273 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 01 Nov 2024 02:40:12 +0000
Subject: [PATCH] gmac get mac form eeprom
---
kernel/drivers/tty/serial/amba-pl011.c | 39 +++++++++++++++++++++++++++++++++++++++
1 files changed, 39 insertions(+), 0 deletions(-)
diff --git a/kernel/drivers/tty/serial/amba-pl011.c b/kernel/drivers/tty/serial/amba-pl011.c
index 9900ee3..6ea53e1 100644
--- a/kernel/drivers/tty/serial/amba-pl011.c
+++ b/kernel/drivers/tty/serial/amba-pl011.c
@@ -1887,6 +1887,8 @@
pl011_disable_uart(uap);
+ if (IS_ENABLED(CONFIG_RAW_PRINTK))
+ clk_disable(uap->clk);
/*
* Shut down the clock producer
*/
@@ -2194,6 +2196,37 @@
pl011_write(ch, uap, REG_DR);
}
+#ifdef CONFIG_RAW_PRINTK
+
+static void
+pl011_console_write_raw(struct console *co, const char *s, unsigned int count)
+{
+ struct uart_amba_port *uap = amba_ports[co->index];
+ unsigned int old_cr = 0, new_cr;
+
+ if (!uap->vendor->always_enabled) {
+ old_cr = pl011_read(uap, REG_CR);
+ new_cr = old_cr & ~UART011_CR_CTSEN;
+ new_cr |= UART01x_CR_UARTEN | UART011_CR_TXE;
+ pl011_write(new_cr, uap, REG_CR);
+ }
+
+ while (count-- > 0) {
+ if (*s == '\n')
+ pl011_console_putchar(&uap->port, '\r');
+ pl011_console_putchar(&uap->port, *s++);
+ }
+
+ while ((pl011_read(uap, REG_FR) ^ uap->vendor->inv_fr)
+ & uap->vendor->fr_busy)
+ cpu_relax();
+
+ if (!uap->vendor->always_enabled)
+ pl011_write(old_cr, uap, REG_CR);
+}
+
+#endif /* !CONFIG_RAW_PRINTK */
+
static void
pl011_console_write(struct console *co, const char *s, unsigned int count)
{
@@ -2323,6 +2356,9 @@
pl011_console_get_options(uap, &baud, &parity, &bits);
}
+ if (IS_ENABLED(CONFIG_RAW_PRINTK))
+ clk_enable(uap->clk);
+
return uart_set_options(&uap->port, co, baud, parity, bits, flow);
}
@@ -2393,6 +2429,9 @@
.device = uart_console_device,
.setup = pl011_console_setup,
.match = pl011_console_match,
+#ifdef CONFIG_RAW_PRINTK
+ .write_raw = pl011_console_write_raw,
+#endif
.flags = CON_PRINTBUFFER | CON_ANYTIME,
.index = -1,
.data = &amba_reg,
--
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