[PATCH 01/03] ARM: shmobile: Remove legacy EMEV2 SoC support
Magnus Damm
magnus.damm at gmail.com
Thu Feb 13 03:26:08 EST 2014
From: Magnus Damm <damm at opensource.se>
Get rid of legacy EMEV2 SoC code including the legacy clock
framework implementation. The multiplatform implementation
together with DT board support shall be used instead.
Signed-off-by: Magnus Damm <damm at opensource.se>
---
arch/arm/boot/dts/Makefile | 3
arch/arm/mach-shmobile/Kconfig | 9 -
arch/arm/mach-shmobile/Makefile | 1
arch/arm/mach-shmobile/clock-emev2.c | 231 ---------------------------
arch/arm/mach-shmobile/include/mach/emev2.h | 1
arch/arm/mach-shmobile/setup-emev2.c | 4
6 files changed, 1 insertion(+), 248 deletions(-)
--- 0001/arch/arm/boot/dts/Makefile
+++ work/arch/arm/boot/dts/Makefile 2014-02-05 18:26:25.000000000 +0900
@@ -242,8 +242,7 @@ dtb-$(CONFIG_ARCH_U8500) += ste-snowball
dtb-$(CONFIG_ARCH_S3C24XX) += s3c2416-smdk2416.dtb
dtb-$(CONFIG_ARCH_S3C64XX) += s3c6410-mini6410.dtb \
s3c6410-smdk6410.dtb
-dtb-$(CONFIG_ARCH_SHMOBILE_LEGACY) += emev2-kzm9d.dtb \
- r7s72100-genmai.dtb \
+dtb-$(CONFIG_ARCH_SHMOBILE_LEGACY) += r7s72100-genmai.dtb \
r7s72100-genmai-reference.dtb \
r8a7740-armadillo800eva.dtb \
r8a7778-bockw.dtb \
--- 0009/arch/arm/mach-shmobile/Kconfig
+++ work/arch/arm/mach-shmobile/Kconfig 2014-02-05 18:21:28.000000000 +0900
@@ -139,15 +139,6 @@ config ARCH_R8A7791
select RENESAS_IRQC
select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE
-config ARCH_EMEV2
- bool "Emma Mobile EV2"
- select ARCH_WANT_OPTIONAL_GPIOLIB
- select ARM_GIC
- select CPU_V7
- select MIGHT_HAVE_PCI
- select USE_OF
- select AUTO_ZRELADDR
-
config ARCH_R7S72100
bool "RZ/A1H (R7S72100)"
select ARCH_WANT_OPTIONAL_GPIOLIB
--- 0001/arch/arm/mach-shmobile/Makefile
+++ work/arch/arm/mach-shmobile/Makefile 2014-02-05 18:21:28.000000000 +0900
@@ -31,7 +31,6 @@ obj-$(CONFIG_ARCH_R8A7778) += clock-r8a7
obj-$(CONFIG_ARCH_R8A7779) += clock-r8a7779.o
obj-$(CONFIG_ARCH_R8A7790) += clock-r8a7790.o
obj-$(CONFIG_ARCH_R8A7791) += clock-r8a7791.o
-obj-$(CONFIG_ARCH_EMEV2) += clock-emev2.o
obj-$(CONFIG_ARCH_R7S72100) += clock-r7s72100.o
endif
--- 0001/arch/arm/mach-shmobile/clock-emev2.c
+++ /dev/null 2013-06-03 21:41:10.638032047 +0900
@@ -1,231 +0,0 @@
-/*
- * Emma Mobile EV2 clock framework support
- *
- * Copyright (C) 2012 Magnus Damm
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/io.h>
-#include <linux/sh_clk.h>
-#include <linux/clkdev.h>
-#include <mach/common.h>
-
-#define EMEV2_SMU_BASE 0xe0110000
-
-/* EMEV2 SMU registers */
-#define USIAU0_RSTCTRL 0x094
-#define USIBU1_RSTCTRL 0x0ac
-#define USIBU2_RSTCTRL 0x0b0
-#define USIBU3_RSTCTRL 0x0b4
-#define STI_RSTCTRL 0x124
-#define USIAU0GCLKCTRL 0x4a0
-#define USIBU1GCLKCTRL 0x4b8
-#define USIBU2GCLKCTRL 0x4bc
-#define USIBU3GCLKCTRL 0x04c0
-#define STIGCLKCTRL 0x528
-#define USIAU0SCLKDIV 0x61c
-#define USIB2SCLKDIV 0x65c
-#define USIB3SCLKDIV 0x660
-#define STI_CLKSEL 0x688
-
-/* not pretty, but hey */
-static void __iomem *smu_base;
-
-static void emev2_smu_write(unsigned long value, int offs)
-{
- BUG_ON(!smu_base || (offs >= PAGE_SIZE));
- iowrite32(value, smu_base + offs);
-}
-
-static struct clk_mapping smu_mapping = {
- .phys = EMEV2_SMU_BASE,
- .len = PAGE_SIZE,
-};
-
-/* Fixed 32 KHz root clock from C32K pin */
-static struct clk c32k_clk = {
- .rate = 32768,
- .mapping = &smu_mapping,
-};
-
-/* PLL3 multiplies C32K with 7000 */
-static unsigned long pll3_recalc(struct clk *clk)
-{
- return clk->parent->rate * 7000;
-}
-
-static struct sh_clk_ops pll3_clk_ops = {
- .recalc = pll3_recalc,
-};
-
-static struct clk pll3_clk = {
- .ops = &pll3_clk_ops,
- .parent = &c32k_clk,
-};
-
-static struct clk *main_clks[] = {
- &c32k_clk,
- &pll3_clk,
-};
-
-enum { SCLKDIV_USIAU0, SCLKDIV_USIBU2, SCLKDIV_USIBU1, SCLKDIV_USIBU3,
- SCLKDIV_NR };
-
-#define SCLKDIV(_reg, _shift) \
-{ \
- .parent = &pll3_clk, \
- .enable_reg = IOMEM(EMEV2_SMU_BASE + (_reg)), \
- .enable_bit = _shift, \
-}
-
-static struct clk sclkdiv_clks[SCLKDIV_NR] = {
- [SCLKDIV_USIAU0] = SCLKDIV(USIAU0SCLKDIV, 0),
- [SCLKDIV_USIBU2] = SCLKDIV(USIB2SCLKDIV, 16),
- [SCLKDIV_USIBU1] = SCLKDIV(USIB2SCLKDIV, 0),
- [SCLKDIV_USIBU3] = SCLKDIV(USIB3SCLKDIV, 0),
-};
-
-enum { GCLK_USIAU0_SCLK, GCLK_USIBU1_SCLK, GCLK_USIBU2_SCLK, GCLK_USIBU3_SCLK,
- GCLK_STI_SCLK,
- GCLK_NR };
-
-#define GCLK_SCLK(_parent, _reg) \
-{ \
- .parent = _parent, \
- .enable_reg = IOMEM(EMEV2_SMU_BASE + (_reg)), \
- .enable_bit = 1, /* SCLK_GCC */ \
-}
-
-static struct clk gclk_clks[GCLK_NR] = {
- [GCLK_USIAU0_SCLK] = GCLK_SCLK(&sclkdiv_clks[SCLKDIV_USIAU0],
- USIAU0GCLKCTRL),
- [GCLK_USIBU1_SCLK] = GCLK_SCLK(&sclkdiv_clks[SCLKDIV_USIBU1],
- USIBU1GCLKCTRL),
- [GCLK_USIBU2_SCLK] = GCLK_SCLK(&sclkdiv_clks[SCLKDIV_USIBU2],
- USIBU2GCLKCTRL),
- [GCLK_USIBU3_SCLK] = GCLK_SCLK(&sclkdiv_clks[SCLKDIV_USIBU3],
- USIBU3GCLKCTRL),
- [GCLK_STI_SCLK] = GCLK_SCLK(&c32k_clk, STIGCLKCTRL),
-};
-
-static int emev2_gclk_enable(struct clk *clk)
-{
- iowrite32(ioread32(clk->mapped_reg) | (1 << clk->enable_bit),
- clk->mapped_reg);
- return 0;
-}
-
-static void emev2_gclk_disable(struct clk *clk)
-{
- iowrite32(ioread32(clk->mapped_reg) & ~(1 << clk->enable_bit),
- clk->mapped_reg);
-}
-
-static struct sh_clk_ops emev2_gclk_clk_ops = {
- .enable = emev2_gclk_enable,
- .disable = emev2_gclk_disable,
- .recalc = followparent_recalc,
-};
-
-static int __init emev2_gclk_register(struct clk *clks, int nr)
-{
- struct clk *clkp;
- int ret = 0;
- int k;
-
- for (k = 0; !ret && (k < nr); k++) {
- clkp = clks + k;
- clkp->ops = &emev2_gclk_clk_ops;
- ret |= clk_register(clkp);
- }
-
- return ret;
-}
-
-static unsigned long emev2_sclkdiv_recalc(struct clk *clk)
-{
- unsigned int sclk_div;
-
- sclk_div = (ioread32(clk->mapped_reg) >> clk->enable_bit) & 0xff;
-
- return clk->parent->rate / (sclk_div + 1);
-}
-
-static struct sh_clk_ops emev2_sclkdiv_clk_ops = {
- .recalc = emev2_sclkdiv_recalc,
-};
-
-static int __init emev2_sclkdiv_register(struct clk *clks, int nr)
-{
- struct clk *clkp;
- int ret = 0;
- int k;
-
- for (k = 0; !ret && (k < nr); k++) {
- clkp = clks + k;
- clkp->ops = &emev2_sclkdiv_clk_ops;
- ret |= clk_register(clkp);
- }
-
- return ret;
-}
-
-static struct clk_lookup lookups[] = {
- CLKDEV_DEV_ID("serial8250-em.0", &gclk_clks[GCLK_USIAU0_SCLK]),
- CLKDEV_DEV_ID("e1020000.uart", &gclk_clks[GCLK_USIAU0_SCLK]),
- CLKDEV_DEV_ID("serial8250-em.1", &gclk_clks[GCLK_USIBU1_SCLK]),
- CLKDEV_DEV_ID("e1030000.uart", &gclk_clks[GCLK_USIBU1_SCLK]),
- CLKDEV_DEV_ID("serial8250-em.2", &gclk_clks[GCLK_USIBU2_SCLK]),
- CLKDEV_DEV_ID("e1040000.uart", &gclk_clks[GCLK_USIBU2_SCLK]),
- CLKDEV_DEV_ID("serial8250-em.3", &gclk_clks[GCLK_USIBU3_SCLK]),
- CLKDEV_DEV_ID("e1050000.uart", &gclk_clks[GCLK_USIBU3_SCLK]),
- CLKDEV_DEV_ID("em_sti.0", &gclk_clks[GCLK_STI_SCLK]),
- CLKDEV_DEV_ID("e0180000.sti", &gclk_clks[GCLK_STI_SCLK]),
-};
-
-void __init emev2_clock_init(void)
-{
- int k, ret = 0;
-
- smu_base = ioremap(EMEV2_SMU_BASE, PAGE_SIZE);
- BUG_ON(!smu_base);
-
- /* setup STI timer to run on 32.768 kHz and deassert reset */
- emev2_smu_write(0, STI_CLKSEL);
- emev2_smu_write(1, STI_RSTCTRL);
-
- /* deassert reset for UART0->UART3 */
- emev2_smu_write(2, USIAU0_RSTCTRL);
- emev2_smu_write(2, USIBU1_RSTCTRL);
- emev2_smu_write(2, USIBU2_RSTCTRL);
- emev2_smu_write(2, USIBU3_RSTCTRL);
-
- for (k = 0; !ret && (k < ARRAY_SIZE(main_clks)); k++)
- ret = clk_register(main_clks[k]);
-
- if (!ret)
- ret = emev2_sclkdiv_register(sclkdiv_clks, SCLKDIV_NR);
-
- if (!ret)
- ret = emev2_gclk_register(gclk_clks, GCLK_NR);
-
- clkdev_add_table(lookups, ARRAY_SIZE(lookups));
-
- if (!ret)
- shmobile_clk_init();
- else
- panic("failed to setup emev2 clocks\n");
-}
--- 0001/arch/arm/mach-shmobile/include/mach/emev2.h
+++ work/arch/arm/mach-shmobile/include/mach/emev2.h 2014-02-05 18:21:28.000000000 +0900
@@ -3,7 +3,6 @@
extern void emev2_map_io(void);
extern void emev2_init_delay(void);
-extern void emev2_clock_init(void);
extern struct smp_operations emev2_smp_ops;
#endif /* __ASM_EMEV2_H__ */
--- 0001/arch/arm/mach-shmobile/setup-emev2.c
+++ work/arch/arm/mach-shmobile/setup-emev2.c 2014-02-05 18:21:28.000000000 +0900
@@ -50,11 +50,7 @@ void __init emev2_init_delay(void)
static void __init emev2_add_standard_devices_dt(void)
{
-#ifdef CONFIG_COMMON_CLK
of_clk_init(NULL);
-#else
- emev2_clock_init();
-#endif
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
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