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author | Tom Rini <trini@konsulko.com> | 2022-11-19 18:45:24 -0500 |
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committer | Tom Rini <trini@konsulko.com> | 2022-12-05 16:07:13 -0500 |
commit | d5596cbc6e4d189e006f0422b162cd12e07c5b97 (patch) | |
tree | 24ff20aabd458031930c2b7bd7fef0de28828ec2 /drivers/serial | |
parent | 68e54040ccc3c5432be720e0cc6da3489eaceef6 (diff) | |
download | u-boot-d5596cbc6e4d189e006f0422b162cd12e07c5b97.zip u-boot-d5596cbc6e4d189e006f0422b162cd12e07c5b97.tar.gz u-boot-d5596cbc6e4d189e006f0422b162cd12e07c5b97.tar.bz2 |
arm: lpc32xx: Remove unused hsuart driver
This driver is not enabled in any config currently, remove it.
Cc: Trevor Woerner <twoerner@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'drivers/serial')
-rw-r--r-- | drivers/serial/Makefile | 1 | ||||
-rw-r--r-- | drivers/serial/lpc32xx_hsuart.c | 112 |
2 files changed, 0 insertions, 113 deletions
diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile index 45cf94c..33fa568 100644 --- a/drivers/serial/Makefile +++ b/drivers/serial/Makefile @@ -38,7 +38,6 @@ obj-$(CONFIG_COREBOOT_SERIAL) += serial_coreboot.o obj-$(CONFIG_CORTINA_UART) += serial_cortina.o obj-$(CONFIG_DEBUG_SBI_CONSOLE) += serial_sbi.o obj-$(CONFIG_EFI_APP) += serial_efi.o -obj-$(CONFIG_LPC32XX_HSUART) += lpc32xx_hsuart.o obj-$(CONFIG_MCFUART) += serial_mcf.o obj-$(CONFIG_SYS_NS16550) += ns16550.o obj-$(CONFIG_S5P_SERIAL) += serial_s5p.o diff --git a/drivers/serial/lpc32xx_hsuart.c b/drivers/serial/lpc32xx_hsuart.c deleted file mode 100644 index d39a3c0..0000000 --- a/drivers/serial/lpc32xx_hsuart.c +++ /dev/null @@ -1,112 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Copyright (C) 2011-2015 Vladimir Zapolskiy <vz@mleia.com> - */ - -#include <common.h> -#include <clock_legacy.h> -#include <dm.h> -#include <serial.h> -#include <dm/platform_data/lpc32xx_hsuart.h> - -#include <asm/arch/uart.h> -#include <linux/compiler.h> - -struct lpc32xx_hsuart_priv { - struct hsuart_regs *hsuart; -}; - -static int lpc32xx_serial_setbrg(struct udevice *dev, int baudrate) -{ - struct lpc32xx_hsuart_priv *priv = dev_get_priv(dev); - struct hsuart_regs *hsuart = priv->hsuart; - u32 div; - - /* UART rate = PERIPH_CLK / ((HSU_RATE + 1) x 14) */ - div = (get_serial_clock() / 14 + baudrate / 2) / baudrate - 1; - if (div > 255) - div = 255; - - writel(div, &hsuart->rate); - - return 0; -} - -static int lpc32xx_serial_getc(struct udevice *dev) -{ - struct lpc32xx_hsuart_priv *priv = dev_get_priv(dev); - struct hsuart_regs *hsuart = priv->hsuart; - - if (!(readl(&hsuart->level) & HSUART_LEVEL_RX)) - return -EAGAIN; - - return readl(&hsuart->rx) & HSUART_RX_DATA; -} - -static int lpc32xx_serial_putc(struct udevice *dev, const char c) -{ - struct lpc32xx_hsuart_priv *priv = dev_get_priv(dev); - struct hsuart_regs *hsuart = priv->hsuart; - - /* Wait for empty FIFO */ - if (readl(&hsuart->level) & HSUART_LEVEL_TX) - return -EAGAIN; - - writel(c, &hsuart->tx); - - return 0; -} - -static int lpc32xx_serial_pending(struct udevice *dev, bool input) -{ - struct lpc32xx_hsuart_priv *priv = dev_get_priv(dev); - struct hsuart_regs *hsuart = priv->hsuart; - - if (input) { - if (readl(&hsuart->level) & HSUART_LEVEL_RX) - return 1; - } else { - if (readl(&hsuart->level) & HSUART_LEVEL_TX) - return 1; - } - - return 0; -} - -static int lpc32xx_serial_init(struct hsuart_regs *hsuart) -{ - /* Disable hardware RTS and CTS flow control, set up RX and TX FIFO */ - writel(HSUART_CTRL_TMO_16 | HSUART_CTRL_HSU_OFFSET(20) | - HSUART_CTRL_HSU_RX_TRIG_32 | HSUART_CTRL_HSU_TX_TRIG_0, - &hsuart->ctrl); - - return 0; -} - -static int lpc32xx_hsuart_probe(struct udevice *dev) -{ - struct lpc32xx_hsuart_plat *plat = dev_get_plat(dev); - struct lpc32xx_hsuart_priv *priv = dev_get_priv(dev); - - priv->hsuart = (struct hsuart_regs *)plat->base; - - lpc32xx_serial_init(priv->hsuart); - - return 0; -} - -static const struct dm_serial_ops lpc32xx_hsuart_ops = { - .setbrg = lpc32xx_serial_setbrg, - .getc = lpc32xx_serial_getc, - .putc = lpc32xx_serial_putc, - .pending = lpc32xx_serial_pending, -}; - -U_BOOT_DRIVER(lpc32xx_hsuart) = { - .name = "lpc32xx_hsuart", - .id = UCLASS_SERIAL, - .probe = lpc32xx_hsuart_probe, - .ops = &lpc32xx_hsuart_ops, - .priv_auto = sizeof(struct lpc32xx_hsuart_priv), - .flags = DM_FLAG_PRE_RELOC, -}; |