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authorDaniel Glöckner <dg@emlix.com>2014-10-18 18:46:25 -0400
committerMax Filippov <jcmvbkbc@gmail.com>2014-10-21 05:29:01 -0400
commit4006e565e1500db40b8546dcc6011737bc5d986c (patch)
treeff158ef0a7de01246cf3793787e50b74c5838218 /arch/xtensa/platforms
parent3932b9ca55b0be314a36d3e84faff3e823c081f5 (diff)
xtensa: remove s6000 variant and s6105 platform
The Stretch s6000 family support has been merged into mainline 5 years ago. There appear to be no users of this code since nobody complained that there is a merge error preventing compilation. Apart from the s6105 IP camera reference design there are no s6000 devices known to ever have run Linux and as the chips are out of production there probably never will be. The successor s7000 no longer uses an Xtensa core for the OS. Let's remove the code until someone is found who actually needs it. Signed-off-by: Daniel Glöckner <dg@emlix.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa/platforms')
-rw-r--r--arch/xtensa/platforms/s6105/Makefile3
-rw-r--r--arch/xtensa/platforms/s6105/device.c161
-rw-r--r--arch/xtensa/platforms/s6105/include/platform/gpio.h27
-rw-r--r--arch/xtensa/platforms/s6105/include/platform/hardware.h11
-rw-r--r--arch/xtensa/platforms/s6105/include/platform/serial.h8
-rw-r--r--arch/xtensa/platforms/s6105/setup.c73
6 files changed, 0 insertions, 283 deletions
diff --git a/arch/xtensa/platforms/s6105/Makefile b/arch/xtensa/platforms/s6105/Makefile
deleted file mode 100644
index 0be6194bcb72..000000000000
--- a/arch/xtensa/platforms/s6105/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
1# Makefile for the Stretch S6105 eval board
2
3obj-y := setup.o device.o
diff --git a/arch/xtensa/platforms/s6105/device.c b/arch/xtensa/platforms/s6105/device.c
deleted file mode 100644
index 4f4fc971042f..000000000000
--- a/arch/xtensa/platforms/s6105/device.c
+++ /dev/null
@@ -1,161 +0,0 @@
1/*
2 * s6105 platform devices
3 *
4 * Copyright (c) 2009 emlix GmbH
5 */
6
7#include <linux/kernel.h>
8#include <linux/gpio.h>
9#include <linux/init.h>
10#include <linux/irq.h>
11#include <linux/phy.h>
12#include <linux/platform_device.h>
13#include <linux/serial.h>
14#include <linux/serial_8250.h>
15
16#include <variant/hardware.h>
17#include <variant/dmac.h>
18
19#include <platform/gpio.h>
20
21#define GPIO3_INTNUM 3
22#define UART_INTNUM 4
23#define GMAC_INTNUM 5
24
25static const signed char gpio3_irq_mappings[] = {
26 S6_INTC_GPIO(3),
27 -1
28};
29
30static const signed char uart_irq_mappings[] = {
31 S6_INTC_UART(0),
32 S6_INTC_UART(1),
33 -1,
34};
35
36static const signed char gmac_irq_mappings[] = {
37 S6_INTC_GMAC_STAT,
38 S6_INTC_GMAC_ERR,
39 S6_INTC_DMA_HOSTTERMCNT(0),
40 S6_INTC_DMA_HOSTTERMCNT(1),
41 -1
42};
43
44const signed char *platform_irq_mappings[NR_IRQS] = {
45 [GPIO3_INTNUM] = gpio3_irq_mappings,
46 [UART_INTNUM] = uart_irq_mappings,
47 [GMAC_INTNUM] = gmac_irq_mappings,
48};
49
50static struct plat_serial8250_port serial_platform_data[] = {
51 {
52 .membase = (void *)S6_REG_UART + 0x0000,
53 .mapbase = S6_REG_UART + 0x0000,
54 .irq = UART_INTNUM,
55 .uartclk = S6_SCLK,
56 .regshift = 2,
57 .iotype = SERIAL_IO_MEM,
58 .flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST,
59 },
60 {
61 .membase = (void *)S6_REG_UART + 0x1000,
62 .mapbase = S6_REG_UART + 0x1000,
63 .irq = UART_INTNUM,
64 .uartclk = S6_SCLK,
65 .regshift = 2,
66 .iotype = SERIAL_IO_MEM,
67 .flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST,
68 },
69 { },
70};
71
72static struct resource s6_gmac_resource[] = {
73 {
74 .name = "mem",
75 .start = (resource_size_t)S6_REG_GMAC,
76 .end = (resource_size_t)S6_REG_GMAC + 0x10000 - 1,
77 .flags = IORESOURCE_MEM,
78 },
79 {
80 .name = "dma",
81 .start = (resource_size_t)
82 DMA_CHNL(S6_REG_HIFDMA, S6_HIFDMA_GMACTX),
83 .end = (resource_size_t)
84 DMA_CHNL(S6_REG_HIFDMA, S6_HIFDMA_GMACTX) + 0x100 - 1,
85 .flags = IORESOURCE_DMA,
86 },
87 {
88 .name = "dma",
89 .start = (resource_size_t)
90 DMA_CHNL(S6_REG_HIFDMA, S6_HIFDMA_GMACRX),
91 .end = (resource_size_t)
92 DMA_CHNL(S6_REG_HIFDMA, S6_HIFDMA_GMACRX) + 0x100 - 1,
93 .flags = IORESOURCE_DMA,
94 },
95 {
96 .name = "io",
97 .start = (resource_size_t)S6_MEM_GMAC,
98 .end = (resource_size_t)S6_MEM_GMAC + 0x2000000 - 1,
99 .flags = IORESOURCE_IO,
100 },
101 {
102 .name = "irq",
103 .start = (resource_size_t)GMAC_INTNUM,
104 .flags = IORESOURCE_IRQ,
105 },
106 {
107 .name = "irq",
108 .start = (resource_size_t)PHY_POLL,
109 .flags = IORESOURCE_IRQ,
110 },
111};
112
113static int __init prepare_phy_irq(int pin)
114{
115 int irq;
116 if (gpio_request(pin, "s6gmac_phy") < 0)
117 goto fail;
118 if (gpio_direction_input(pin) < 0)
119 goto free;
120 irq = gpio_to_irq(pin);
121 if (irq < 0)
122 goto free;
123 if (irq_set_irq_type(irq, IRQ_TYPE_LEVEL_LOW) < 0)
124 goto free;
125 return irq;
126free:
127 gpio_free(pin);
128fail:
129 return PHY_POLL;
130}
131
132static struct platform_device platform_devices[] = {
133 {
134 .name = "serial8250",
135 .id = PLAT8250_DEV_PLATFORM,
136 .dev = {
137 .platform_data = serial_platform_data,
138 },
139 },
140 {
141 .name = "s6gmac",
142 .id = 0,
143 .resource = s6_gmac_resource,
144 .num_resources = ARRAY_SIZE(s6_gmac_resource),
145 },
146 {
147 I2C_BOARD_INFO("m41t62", S6I2C_ADDR_M41T62),
148 },
149};
150
151static int __init device_init(void)
152{
153 int i;
154
155 s6_gmac_resource[5].start = prepare_phy_irq(GPIO_PHY_IRQ);
156
157 for (i = 0; i < ARRAY_SIZE(platform_devices); i++)
158 platform_device_register(&platform_devices[i]);
159 return 0;
160}
161arch_initcall_sync(device_init);
diff --git a/arch/xtensa/platforms/s6105/include/platform/gpio.h b/arch/xtensa/platforms/s6105/include/platform/gpio.h
deleted file mode 100644
index fa11aa4b61e9..000000000000
--- a/arch/xtensa/platforms/s6105/include/platform/gpio.h
+++ /dev/null
@@ -1,27 +0,0 @@
1#ifndef __ASM_XTENSA_S6105_GPIO_H
2#define __ASM_XTENSA_S6105_GPIO_H
3
4#define GPIO_BP_TEMP_ALARM 0
5#define GPIO_PB_RESET_IN 1
6#define GPIO_EXP_IRQ 2
7#define GPIO_TRIGGER_IRQ 3
8#define GPIO_RTC_IRQ 4
9#define GPIO_PHY_IRQ 5
10#define GPIO_IMAGER_RESET 6
11#define GPIO_SD_IRQ 7
12#define GPIO_MINI_BOOT_INH 8
13#define GPIO_BOARD_RESET 9
14#define GPIO_EXP_PRESENT 10
15#define GPIO_LED1_NGREEN 12
16#define GPIO_LED1_RED 13
17#define GPIO_LED0_NGREEN 14
18#define GPIO_LED0_NRED 15
19#define GPIO_SPI_CS0 16
20#define GPIO_SPI_CS1 17
21#define GPIO_SPI_CS3 19
22#define GPIO_SPI_CS4 20
23#define GPIO_SD_WP 21
24#define GPIO_BP_RESET 22
25#define GPIO_ALARM_OUT 23
26
27#endif /* __ASM_XTENSA_S6105_GPIO_H */
diff --git a/arch/xtensa/platforms/s6105/include/platform/hardware.h b/arch/xtensa/platforms/s6105/include/platform/hardware.h
deleted file mode 100644
index d628efac7089..000000000000
--- a/arch/xtensa/platforms/s6105/include/platform/hardware.h
+++ /dev/null
@@ -1,11 +0,0 @@
1#ifndef __XTENSA_S6105_HARDWARE_H
2#define __XTENSA_S6105_HARDWARE_H
3
4#define PLATFORM_DEFAULT_MEM_START 0x40000000
5#define PLATFORM_DEFAULT_MEM_SIZE 0x08000000
6
7#define MAX_DMA_ADDRESS 0
8
9#define KERNELOFFSET (PLATFORM_DEFAULT_MEM_START + 0x1000)
10
11#endif /* __XTENSA_S6105_HARDWARE_H */
diff --git a/arch/xtensa/platforms/s6105/include/platform/serial.h b/arch/xtensa/platforms/s6105/include/platform/serial.h
deleted file mode 100644
index c8a771e5981b..000000000000
--- a/arch/xtensa/platforms/s6105/include/platform/serial.h
+++ /dev/null
@@ -1,8 +0,0 @@
1#ifndef __ASM_XTENSA_S6105_SERIAL_H
2#define __ASM_XTENSA_S6105_SERIAL_H
3
4#include <variant/hardware.h>
5
6#define BASE_BAUD (S6_SCLK / 16)
7
8#endif /* __ASM_XTENSA_S6105_SERIAL_H */
diff --git a/arch/xtensa/platforms/s6105/setup.c b/arch/xtensa/platforms/s6105/setup.c
deleted file mode 100644
index 86ce730f7913..000000000000
--- a/arch/xtensa/platforms/s6105/setup.c
+++ /dev/null
@@ -1,73 +0,0 @@
1/*
2 * s6105 control routines
3 *
4 * Copyright (c) 2009 emlix GmbH
5 */
6#include <linux/irq.h>
7#include <linux/io.h>
8#include <linux/gpio.h>
9
10#include <asm/bootparam.h>
11
12#include <variant/hardware.h>
13#include <variant/gpio.h>
14
15#include <platform/gpio.h>
16
17void platform_halt(void)
18{
19 local_irq_disable();
20 while (1)
21 ;
22}
23
24void platform_power_off(void)
25{
26 platform_halt();
27}
28
29void platform_restart(void)
30{
31 platform_halt();
32}
33
34void __init platform_setup(char **cmdline)
35{
36 unsigned long reg;
37
38 reg = readl(S6_REG_GREG1 + S6_GREG1_PLLSEL);
39 reg &= ~(S6_GREG1_PLLSEL_GMAC_MASK << S6_GREG1_PLLSEL_GMAC |
40 S6_GREG1_PLLSEL_GMII_MASK << S6_GREG1_PLLSEL_GMII);
41 reg |= S6_GREG1_PLLSEL_GMAC_125MHZ << S6_GREG1_PLLSEL_GMAC |
42 S6_GREG1_PLLSEL_GMII_125MHZ << S6_GREG1_PLLSEL_GMII;
43 writel(reg, S6_REG_GREG1 + S6_GREG1_PLLSEL);
44
45 reg = readl(S6_REG_GREG1 + S6_GREG1_CLKGATE);
46 reg &= ~(1 << S6_GREG1_BLOCK_SB);
47 reg &= ~(1 << S6_GREG1_BLOCK_GMAC);
48 writel(reg, S6_REG_GREG1 + S6_GREG1_CLKGATE);
49
50 reg = readl(S6_REG_GREG1 + S6_GREG1_BLOCKENA);
51 reg |= 1 << S6_GREG1_BLOCK_SB;
52 reg |= 1 << S6_GREG1_BLOCK_GMAC;
53 writel(reg, S6_REG_GREG1 + S6_GREG1_BLOCKENA);
54
55 printk(KERN_NOTICE "S6105 on Stretch S6000 - "
56 "Copyright (C) 2009 emlix GmbH <info@emlix.com>\n");
57}
58
59void __init platform_init(bp_tag_t *first)
60{
61 s6_gpio_init(0);
62 gpio_request(GPIO_LED1_NGREEN, "led1_green");
63 gpio_request(GPIO_LED1_RED, "led1_red");
64 gpio_direction_output(GPIO_LED1_NGREEN, 1);
65}
66
67void platform_heartbeat(void)
68{
69 static unsigned int c;
70
71 if (!(++c & 0x4F))
72 gpio_direction_output(GPIO_LED1_RED, !(c & 0x10));
73}
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