[PATCH] arm: remove zte zx platform left-over
From: Lukas Bulwahn
Date: Tue Nov 02 2021 - 02:38:27 EST
Commit 89d4f98ae90d ("ARM: remove zte zx platform") missed to remove some
definitions for this platform's debug and serial, e.g., code dependent on
the config DEBUG_ZTE_ZX.
Fortunately, ./scripts/checkkconfigsymbols.py detects this and warns:
DEBUG_ZTE_ZX
Referencing files: arch/arm/include/debug/pl01x.S
Further review by Arnd Bergmann identified even more dead code in the
amba serial driver.
Remove all this left-over from the zte zx platform.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@xxxxxxxxx>
---
this is a new patch after the discussion around:
https://lore.kernel.org/all/20211028141938.3530-2-lukas.bulwahn@xxxxxxxxx/
arch/arm/include/debug/pl01x.S | 7 -------
drivers/tty/serial/amba-pl011.c | 37 ---------------------------------
include/linux/amba/bus.h | 6 ------
3 files changed, 50 deletions(-)
diff --git a/arch/arm/include/debug/pl01x.S b/arch/arm/include/debug/pl01x.S
index 0c7bfa4c10db..c7e02d0628bf 100644
--- a/arch/arm/include/debug/pl01x.S
+++ b/arch/arm/include/debug/pl01x.S
@@ -8,13 +8,6 @@
*/
#include <linux/amba/serial.h>
-#ifdef CONFIG_DEBUG_ZTE_ZX
-#undef UART01x_DR
-#undef UART01x_FR
-#define UART01x_DR 0x04
-#define UART01x_FR 0x14
-#endif
-
#ifdef CONFIG_DEBUG_UART_PHYS
.macro addruart, rp, rv, tmp
ldr \rp, =CONFIG_DEBUG_UART_PHYS
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index d361cd84ff8c..c9534e229166 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -188,38 +188,6 @@ static struct vendor_data vendor_st = {
.get_fifosize = get_fifosize_st,
};
-static const u16 pl011_zte_offsets[REG_ARRAY_SIZE] = {
- [REG_DR] = ZX_UART011_DR,
- [REG_FR] = ZX_UART011_FR,
- [REG_LCRH_RX] = ZX_UART011_LCRH,
- [REG_LCRH_TX] = ZX_UART011_LCRH,
- [REG_IBRD] = ZX_UART011_IBRD,
- [REG_FBRD] = ZX_UART011_FBRD,
- [REG_CR] = ZX_UART011_CR,
- [REG_IFLS] = ZX_UART011_IFLS,
- [REG_IMSC] = ZX_UART011_IMSC,
- [REG_RIS] = ZX_UART011_RIS,
- [REG_MIS] = ZX_UART011_MIS,
- [REG_ICR] = ZX_UART011_ICR,
- [REG_DMACR] = ZX_UART011_DMACR,
-};
-
-static unsigned int get_fifosize_zte(struct amba_device *dev)
-{
- return 16;
-}
-
-static struct vendor_data vendor_zte = {
- .reg_offset = pl011_zte_offsets,
- .access_32b = true,
- .ifls = UART011_IFLS_RX4_8|UART011_IFLS_TX4_8,
- .fr_busy = ZX_UART01x_FR_BUSY,
- .fr_dsr = ZX_UART01x_FR_DSR,
- .fr_cts = ZX_UART01x_FR_CTS,
- .fr_ri = ZX_UART011_FR_RI,
- .get_fifosize = get_fifosize_zte,
-};
-
/* Deals with DMA transactions */
struct pl011_sgbuf {
@@ -2974,11 +2942,6 @@ static const struct amba_id pl011_ids[] = {
.mask = 0x00ffffff,
.data = &vendor_st,
},
- {
- .id = AMBA_LINUX_ID(0x00, 0x1, 0xffe),
- .mask = 0x00ffffff,
- .data = &vendor_zte,
- },
{ 0, 0 },
};
diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h
index edfcf7a14dcd..6c7f47846971 100644
--- a/include/linux/amba/bus.h
+++ b/include/linux/amba/bus.h
@@ -90,14 +90,8 @@ enum amba_vendor {
AMBA_VENDOR_ST = 0x80,
AMBA_VENDOR_QCOM = 0x51,
AMBA_VENDOR_LSI = 0xb6,
- AMBA_VENDOR_LINUX = 0xfe, /* This value is not official */
};
-/* This is used to generate pseudo-ID for AMBA device */
-#define AMBA_LINUX_ID(conf, rev, part) \
- (((conf) & 0xff) << 24 | ((rev) & 0xf) << 20 | \
- AMBA_VENDOR_LINUX << 12 | ((part) & 0xfff))
-
extern struct bus_type amba_bustype;
#define to_amba_device(d) container_of(d, struct amba_device, dev)
--
2.26.2