aboutsummaryrefslogtreecommitdiffstats
path: root/arch/m68knommu
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m68knommu')
-rw-r--r--arch/m68knommu/platform/5206e/config.c1
-rw-r--r--arch/m68knommu/platform/528x/config.c228
2 files changed, 1 insertions, 228 deletions
diff --git a/arch/m68knommu/platform/5206e/config.c b/arch/m68knommu/platform/5206e/config.c
index d01a5d2b7557..db902540bf2c 100644
--- a/arch/m68knommu/platform/5206e/config.c
+++ b/arch/m68knommu/platform/5206e/config.c
@@ -17,6 +17,7 @@
17#include <asm/coldfire.h> 17#include <asm/coldfire.h>
18#include <asm/mcfsim.h> 18#include <asm/mcfsim.h>
19#include <asm/mcfdma.h> 19#include <asm/mcfdma.h>
20#include <asm/mcfuart.h>
20 21
21/***************************************************************************/ 22/***************************************************************************/
22 23
diff --git a/arch/m68knommu/platform/528x/config.c b/arch/m68knommu/platform/528x/config.c
index 2ffb549876f0..bee526f4d1af 100644
--- a/arch/m68knommu/platform/528x/config.c
+++ b/arch/m68knommu/platform/528x/config.c
@@ -24,7 +24,6 @@
24#include <asm/coldfire.h> 24#include <asm/coldfire.h>
25#include <asm/mcfsim.h> 25#include <asm/mcfsim.h>
26#include <asm/mcfuart.h> 26#include <asm/mcfuart.h>
27#include <asm/mcfqspi.h>
28 27
29#ifdef CONFIG_MTD_PARTITIONS 28#ifdef CONFIG_MTD_PARTITIONS
30#include <linux/mtd/partitions.h> 29#include <linux/mtd/partitions.h>
@@ -33,233 +32,6 @@
33/***************************************************************************/ 32/***************************************************************************/
34 33
35void coldfire_reset(void); 34void coldfire_reset(void);
36static void coldfire_qspi_cs_control(u8 cs, u8 command);
37
38/***************************************************************************/
39
40#if defined(CONFIG_SPI)
41
42#if defined(CONFIG_WILDFIRE)
43#define SPI_NUM_CHIPSELECTS 0x02
44#define SPI_PAR_VAL 0x07 /* Enable DIN, DOUT, CLK */
45#define SPI_CS_MASK 0x18
46
47#define FLASH_BLOCKSIZE (1024*64)
48#define FLASH_NUMBLOCKS 16
49#define FLASH_TYPE "m25p80"
50
51#define M25P80_CS 0
52#define MMC_CS 1
53
54#ifdef CONFIG_MTD_PARTITIONS
55static struct mtd_partition stm25p_partitions[] = {
56 /* sflash */
57 [0] = {
58 .name = "stm25p80",
59 .offset = 0x00000000,
60 .size = FLASH_BLOCKSIZE * FLASH_NUMBLOCKS,
61 .mask_flags = 0
62 }
63};
64
65#endif
66
67#elif defined(CONFIG_WILDFIREMOD)
68
69#define SPI_NUM_CHIPSELECTS 0x08
70#define SPI_PAR_VAL 0x07 /* Enable DIN, DOUT, CLK */
71#define SPI_CS_MASK 0x78
72
73#define FLASH_BLOCKSIZE (1024*64)
74#define FLASH_NUMBLOCKS 64
75#define FLASH_TYPE "m25p32"
76/* Reserve 1M for the kernel parition */
77#define FLASH_KERNEL_SIZE (1024 * 1024)
78
79#define M25P80_CS 5
80#define MMC_CS 6
81
82#ifdef CONFIG_MTD_PARTITIONS
83static struct mtd_partition stm25p_partitions[] = {
84 /* sflash */
85 [0] = {
86 .name = "kernel",
87 .offset = FLASH_BLOCKSIZE * FLASH_NUMBLOCKS - FLASH_KERNEL_SIZE,
88 .size = FLASH_KERNEL_SIZE,
89 .mask_flags = 0
90 },
91 [1] = {
92 .name = "image",
93 .offset = 0x00000000,
94 .size = FLASH_BLOCKSIZE * FLASH_NUMBLOCKS - FLASH_KERNEL_SIZE,
95 .mask_flags = 0
96 },
97 [2] = {
98 .name = "all",
99 .offset = 0x00000000,
100 .size = FLASH_BLOCKSIZE * FLASH_NUMBLOCKS,
101 .mask_flags = 0
102 }
103};
104#endif
105
106#else
107#define SPI_NUM_CHIPSELECTS 0x04
108#define SPI_PAR_VAL 0x7F /* Enable DIN, DOUT, CLK, CS0 - CS4 */
109#endif
110
111#ifdef MMC_CS
112static struct coldfire_spi_chip flash_chip_info = {
113 .mode = SPI_MODE_0,
114 .bits_per_word = 16,
115 .del_cs_to_clk = 17,
116 .del_after_trans = 1,
117 .void_write_data = 0
118};
119
120static struct coldfire_spi_chip mmc_chip_info = {
121 .mode = SPI_MODE_0,
122 .bits_per_word = 16,
123 .del_cs_to_clk = 17,
124 .del_after_trans = 1,
125 .void_write_data = 0xFFFF
126};
127#endif
128
129#ifdef M25P80_CS
130static struct flash_platform_data stm25p80_platform_data = {
131 .name = "ST M25P80 SPI Flash chip",
132#ifdef CONFIG_MTD_PARTITIONS
133 .parts = stm25p_partitions,
134 .nr_parts = sizeof(stm25p_partitions) / sizeof(*stm25p_partitions),
135#endif
136 .type = FLASH_TYPE
137};
138#endif
139
140static struct spi_board_info spi_board_info[] __initdata = {
141#ifdef M25P80_CS
142 {
143 .modalias = "m25p80",
144 .max_speed_hz = 16000000,
145 .bus_num = 1,
146 .chip_select = M25P80_CS,
147 .platform_data = &stm25p80_platform_data,
148 .controller_data = &flash_chip_info
149 },
150#endif
151#ifdef MMC_CS
152 {
153 .modalias = "mmc_spi",
154 .max_speed_hz = 16000000,
155 .bus_num = 1,
156 .chip_select = MMC_CS,
157 .controller_data = &mmc_chip_info
158 }
159#endif
160};
161
162static struct coldfire_spi_master coldfire_master_info = {
163 .bus_num = 1,
164 .num_chipselect = SPI_NUM_CHIPSELECTS,
165 .irq_source = MCF5282_QSPI_IRQ_SOURCE,
166 .irq_vector = MCF5282_QSPI_IRQ_VECTOR,
167 .irq_mask = ((0x01 << MCF5282_QSPI_IRQ_SOURCE) | 0x01),
168 .irq_lp = 0x2B, /* Level 5 and Priority 3 */
169 .par_val = SPI_PAR_VAL,
170 .cs_control = coldfire_qspi_cs_control,
171};
172
173static struct resource coldfire_spi_resources[] = {
174 [0] = {
175 .name = "qspi-par",
176 .start = MCF5282_QSPI_PAR,
177 .end = MCF5282_QSPI_PAR,
178 .flags = IORESOURCE_MEM
179 },
180
181 [1] = {
182 .name = "qspi-module",
183 .start = MCF5282_QSPI_QMR,
184 .end = MCF5282_QSPI_QMR + 0x18,
185 .flags = IORESOURCE_MEM
186 },
187
188 [2] = {
189 .name = "qspi-int-level",
190 .start = MCF5282_INTC0 + MCFINTC_ICR0 + MCF5282_QSPI_IRQ_SOURCE,
191 .end = MCF5282_INTC0 + MCFINTC_ICR0 + MCF5282_QSPI_IRQ_SOURCE,
192 .flags = IORESOURCE_MEM
193 },
194
195 [3] = {
196 .name = "qspi-int-mask",
197 .start = MCF5282_INTC0 + MCFINTC_IMRL,
198 .end = MCF5282_INTC0 + MCFINTC_IMRL,
199 .flags = IORESOURCE_MEM
200 }
201};
202
203static struct platform_device coldfire_spi = {
204 .name = "spi_coldfire",
205 .id = -1,
206 .resource = coldfire_spi_resources,
207 .num_resources = ARRAY_SIZE(coldfire_spi_resources),
208 .dev = {
209 .platform_data = &coldfire_master_info,
210 }
211};
212
213static void coldfire_qspi_cs_control(u8 cs, u8 command)
214{
215 u8 cs_bit = ((0x01 << cs) << 3) & SPI_CS_MASK;
216
217#if defined(CONFIG_WILDFIRE)
218 u8 cs_mask = ~(((0x01 << cs) << 3) & SPI_CS_MASK);
219#endif
220#if defined(CONFIG_WILDFIREMOD)
221 u8 cs_mask = (cs << 3) & SPI_CS_MASK;
222#endif
223
224 /*
225 * Don't do anything if the chip select is not
226 * one of the port qs pins.
227 */
228 if (command & QSPI_CS_INIT) {
229#if defined(CONFIG_WILDFIRE)
230 MCF5282_GPIO_DDRQS |= cs_bit;
231 MCF5282_GPIO_PQSPAR &= ~cs_bit;
232#endif
233
234#if defined(CONFIG_WILDFIREMOD)
235 MCF5282_GPIO_DDRQS |= SPI_CS_MASK;
236 MCF5282_GPIO_PQSPAR &= ~SPI_CS_MASK;
237#endif
238 }
239
240 if (command & QSPI_CS_ASSERT) {
241 MCF5282_GPIO_PORTQS &= ~SPI_CS_MASK;
242 MCF5282_GPIO_PORTQS |= cs_mask;
243 } else if (command & QSPI_CS_DROP) {
244 MCF5282_GPIO_PORTQS |= SPI_CS_MASK;
245 }
246}
247
248static int __init spi_dev_init(void)
249{
250 int retval;
251
252 retval = platform_device_register(&coldfire_spi);
253 if (retval < 0)
254 return retval;
255
256 if (ARRAY_SIZE(spi_board_info))
257 retval = spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
258
259 return retval;
260}
261
262#endif /* CONFIG_SPI */
263 35
264/***************************************************************************/ 36/***************************************************************************/
265 37
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-10 03:13:52 -0500