diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2021-01-15 16:51:24 +0100 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2021-01-15 17:42:10 +0100 |
| commit | cc6111375cec44890218e5be654884f8b7bfc566 (patch) | |
| tree | 098cb53053b58b96b931d1ef987bbdde7d11254d /arch/arm/include/debug/efm32.S | |
| parent | 665a8799b05ea1b396ece2f28823f49862287922 (diff) | |
ARM: drop efm32 platform
I didn't touch this code since it served as a platform to introduce
ARMv7-M support to Linux. The only known machine that runs Linux has only
4 MiB of RAM (that originally only exists to hold the display's framebuffer).
There are no known users and no further use foreseeable, so drop the
code.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20210115155130.185010-2-u.kleine-koenig@pengutronix.de'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/include/debug/efm32.S')
| -rw-r--r-- | arch/arm/include/debug/efm32.S | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/arch/arm/include/debug/efm32.S b/arch/arm/include/debug/efm32.S deleted file mode 100644 index b0083d6e31e8..000000000000 --- a/arch/arm/include/debug/efm32.S +++ /dev/null @@ -1,45 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Copyright (C) 2013 Pengutronix - * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de> - */ - -#define UARTn_CMD 0x000c -#define UARTn_CMD_TXEN 0x0004 - -#define UARTn_STATUS 0x0010 -#define UARTn_STATUS_TXC 0x0020 -#define UARTn_STATUS_TXBL 0x0040 - -#define UARTn_TXDATA 0x0034 - - .macro addruart, rx, tmp, tmp2 - ldr \rx, =(CONFIG_DEBUG_UART_PHYS) - - /* - * enable TX. The driver might disable it to save energy. We - * don't care about disabling at the end as during debug power - * consumption isn't that important. - */ - ldr \tmp, =(UARTn_CMD_TXEN) - str \tmp, [\rx, #UARTn_CMD] - .endm - - .macro senduart,rd,rx - strb \rd, [\rx, #UARTn_TXDATA] - .endm - - .macro waituartcts,rd,rx - .endm - - .macro waituarttxrdy,rd,rx -1001: ldr \rd, [\rx, #UARTn_STATUS] - tst \rd, #UARTn_STATUS_TXBL - beq 1001b - .endm - - .macro busyuart,rd,rx -1001: ldr \rd, [\rx, UARTn_STATUS] - tst \rd, #UARTn_STATUS_TXC - bne 1001b - .endm |