1 #include <linux/init.h>
2 #include <linux/module.h>
3 #include <linux/types.h>
4 #include <linux/string.h>
5 #include <linux/mtd/physmap.h>
6 #include <linux/kernel.h>
7 #include <linux/reboot.h>
8 #include <linux/platform_device.h>
9 #include <linux/leds.h>
10 #include <linux/etherdevice.h>
11 #include <linux/reboot.h>
12 #include <linux/time.h>
14 #include <linux/gpio.h>
15 #include <linux/leds.h>
16 #include <linux/spi/spi.h>
17 #include <linux/mtd/nand.h>
19 #include <asm/bootinfo.h>
31 #include <lantiq_soc.h>
36 void __init
svip_register_asc(int port
)
41 svip_sys1_clk_enable(SYS1_CLKENR_ASC0
);
45 svip_sys1_clk_enable(SYS1_CLKENR_ASC1
);
53 static unsigned char svip_ethaddr
[6] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
55 static struct platform_device ltq_mii
= {
56 .name
= "ifxmips_mii0",
58 .platform_data
= svip_ethaddr
,
62 static int __init
svip_set_ethaddr(char *str
)
64 sscanf(str
, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
65 &svip_ethaddr
[0], &svip_ethaddr
[1], &svip_ethaddr
[2],
66 &svip_ethaddr
[3], &svip_ethaddr
[4], &svip_ethaddr
[5]);
69 __setup("ethaddr=", svip_set_ethaddr
);
71 void __init
svip_register_eth(void)
73 if (!is_valid_ether_addr(svip_ethaddr
))
74 random_ether_addr(svip_ethaddr
);
76 platform_device_register(<q_mii
);
77 svip_sys1_clk_enable(SYS1_CLKENR_ETHSW
);
80 /* Virtual Ethernet */
81 static struct platform_device ltq_ve
= {
82 .name
= "ifxmips_svip_ve",
85 void __init
svip_register_virtual_eth(void)
87 platform_device_register(<q_ve
);
91 static void __init
ltq_register_ssc(int bus_num
, unsigned long base
, int irq_rx
,
92 int irq_tx
, int irq_err
, int irq_frm
)
94 struct resource res
[] = {
98 .end
= base
+ 0x20 - 1,
99 .flags
= IORESOURCE_MEM
,
103 .flags
= IORESOURCE_IRQ
,
107 .flags
= IORESOURCE_IRQ
,
111 .flags
= IORESOURCE_IRQ
,
115 .flags
= IORESOURCE_IRQ
,
119 platform_device_register_simple("ifx_ssc", bus_num
, res
,
123 static struct spi_board_info bdinfo
[] __initdata
= {
127 .irq
= INT_NUM_IM5_IRL0
+ 28,
128 .max_speed_hz
= 1000000,
135 .irq
= INT_NUM_IM5_IRL0
+ 19,
136 .max_speed_hz
= 1000000,
142 .mode
= SPI_MODE_0
| SPI_LOOP
,
144 .max_speed_hz
= 10000000,
150 void __init
svip_register_spi(void)
153 ltq_register_ssc(0, LTQ_SSC0_BASE
, INT_NUM_IM1_IRL0
+ 6,
154 INT_NUM_IM1_IRL0
+ 7, INT_NUM_IM1_IRL0
+ 8,
155 INT_NUM_IM1_IRL0
+ 9);
157 ltq_register_ssc(1, LTQ_SSC1_BASE
, INT_NUM_IM1_IRL0
+ 10,
158 INT_NUM_IM1_IRL0
+ 11, INT_NUM_IM1_IRL0
+ 12,
159 INT_NUM_IM1_IRL0
+ 13);
161 spi_register_board_info(bdinfo
, ARRAY_SIZE(bdinfo
));
163 svip_sys1_clk_enable(SYS1_CLKENR_SSC0
| SYS1_CLKENR_SSC1
);
166 void __init
svip_register_spi_flash(struct spi_board_info
*bdinfo
)
168 spi_register_board_info(bdinfo
, 1);
172 static struct platform_device ltq_gpio
= {
173 .name
= "ifxmips_gpio",
176 void __init
svip_register_gpio(void)
178 platform_device_register(<q_gpio
);
182 static struct ltq_mux_settings ltq_mux_settings
;
184 static struct platform_device ltq_mux
= {
187 .platform_data
= <q_mux_settings
,
191 void __init
svip_register_mux(const struct ltq_mux_pin mux_p0
[LTQ_MUX_P0_PINS
],
192 const struct ltq_mux_pin mux_p1
[LTQ_MUX_P1_PINS
],
193 const struct ltq_mux_pin mux_p2
[LTQ_MUX_P2_PINS
],
194 const struct ltq_mux_pin mux_p3
[LTQ_MUX_P3_PINS
],
195 const struct ltq_mux_pin mux_p4
[LTQ_MUX_P4_PINS
])
197 ltq_mux_settings
.mux_p0
= mux_p0
;
198 ltq_mux_settings
.mux_p1
= mux_p1
;
199 ltq_mux_settings
.mux_p2
= mux_p2
;
200 ltq_mux_settings
.mux_p3
= mux_p3
;
201 ltq_mux_settings
.mux_p4
= mux_p4
;
204 svip_sys1_clk_enable(SYS1_CLKENR_PORT0
);
207 svip_sys1_clk_enable(SYS1_CLKENR_PORT1
);
210 svip_sys1_clk_enable(SYS1_CLKENR_PORT2
);
213 svip_sys1_clk_enable(SYS1_CLKENR_PORT3
);
216 svip_sys2_clk_enable(SYS2_CLKENR_PORT4
);
218 platform_device_register(<q_mux
);
222 #define NAND_ADDR_REGION_BASE (LTQ_EBU_SEG1_BASE)
223 #define NAND_CLE_BIT (1 << 3)
224 #define NAND_ALE_BIT (1 << 2)
226 static struct svip_reg_ebu
*const ebu
= (struct svip_reg_ebu
*)LTQ_EBU_BASE
;
228 static int svip_nand_probe(struct platform_device
*pdev
)
230 ebu_w32(LTQ_EBU_ADDR_SEL_0_BASE_VAL(CPHYSADDR(NAND_ADDR_REGION_BASE
)
232 | LTQ_EBU_ADDR_SEL_0_MASK_VAL(15)
233 | LTQ_EBU_ADDR_SEL_0_MRME_VAL(0)
234 | LTQ_EBU_ADDR_SEL_0_REGEN_VAL(1),
237 ebu_w32(LTQ_EBU_CON_0_WRDIS_VAL(0)
238 | LTQ_EBU_CON_0_ADSWP_VAL(1)
239 | LTQ_EBU_CON_0_AGEN_VAL(0x00)
240 | LTQ_EBU_CON_0_SETUP_VAL(1)
241 | LTQ_EBU_CON_0_WAIT_VAL(0x00)
242 | LTQ_EBU_CON_0_WINV_VAL(0)
243 | LTQ_EBU_CON_0_PW_VAL(0x00)
244 | LTQ_EBU_CON_0_ALEC_VAL(0)
245 | LTQ_EBU_CON_0_BCGEN_VAL(0x01)
246 | LTQ_EBU_CON_0_WAITWRC_VAL(1)
247 | LTQ_EBU_CON_0_WAITRDC_VAL(1)
248 | LTQ_EBU_CON_0_HOLDC_VAL(1)
249 | LTQ_EBU_CON_0_RECOVC_VAL(0)
250 | LTQ_EBU_CON_0_CMULT_VAL(0x01),
255 * CLE, ALE and CS are pulse, all other signal are latches based
256 * CLE and ALE are active high, PRE, WP, SE and CS/CE are active low
257 * OUT_CS_S is disabled
258 * NAND mode is disabled
260 ebu_w32(LTQ_EBU_NAND_CON_ECC_ON_VAL(0)
261 | LTQ_EBU_NAND_CON_LAT_EN_VAL(0x38)
262 | LTQ_EBU_NAND_CON_OUT_CS_S_VAL(0)
263 | LTQ_EBU_NAND_CON_IN_CS_S_VAL(0)
264 | LTQ_EBU_NAND_CON_PRE_P_VAL(1)
265 | LTQ_EBU_NAND_CON_WP_P_VAL(1)
266 | LTQ_EBU_NAND_CON_SE_P_VAL(1)
267 | LTQ_EBU_NAND_CON_CS_P_VAL(1)
268 | LTQ_EBU_NAND_CON_CLE_P_VAL(0)
269 | LTQ_EBU_NAND_CON_ALE_P_VAL(0)
270 | LTQ_EBU_NAND_CON_CSMUX_E_VAL(0)
271 | LTQ_EBU_NAND_CON_NANDMODE_VAL(0),
277 static void svip_nand_hwcontrol(struct mtd_info
*mtd
, int cmd
,
280 struct nand_chip
*this = mtd
->priv
;
282 if (ctrl
& NAND_CTRL_CHANGE
) {
284 /* Coming here means to change either the enable state or
285 * the address for controlling ALE or CLE */
287 /* NAND_NCE: Select the chip by setting nCE to low.
288 * This is done in CON register */
290 ebu_w32_mask(0, LTQ_EBU_NAND_CON_NANDMODE_VAL(1),
293 ebu_w32_mask(LTQ_EBU_NAND_CON_NANDMODE_VAL(1),
296 /* The addressing of CLE or ALE is done via different addresses.
297 We are now changing the address depending on the given action
298 SVIPs NAND_CLE_BIT = (1 << 3), NAND_CLE = 0x02
299 NAND_ALE_BIT = (1 << 2) = NAND_ALE (0x04) */
300 adr
= (unsigned long)this->IO_ADDR_W
;
301 adr
&= ~(NAND_CLE_BIT
| NAND_ALE_BIT
);
302 adr
|= (ctrl
& NAND_CLE
) << 2 | (ctrl
& NAND_ALE
);
303 this->IO_ADDR_W
= (void __iomem
*)adr
;
306 if (cmd
!= NAND_CMD_NONE
)
307 writeb(cmd
, this->IO_ADDR_W
);
310 static int svip_nand_ready(struct mtd_info
*mtd
)
312 return (ebu_r32(nand_wait
) & 0x01) == 0x01;
315 static inline void svip_nand_wait(void)
317 static const int nops
= 150;
320 for (i
= 0; i
< nops
; i
++)
324 static void svip_nand_write_buf(struct mtd_info
*mtd
,
325 const u_char
*buf
, int len
)
328 struct nand_chip
*this = mtd
->priv
;
330 for (i
= 0; i
< len
; i
++) {
331 writeb(buf
[i
], this->IO_ADDR_W
);
336 static void svip_nand_read_buf(struct mtd_info
*mtd
, u_char
*buf
, int len
)
339 struct nand_chip
*this = mtd
->priv
;
341 for (i
= 0; i
< len
; i
++) {
342 buf
[i
] = readb(this->IO_ADDR_R
);
347 static const char *part_probes
[] = { "cmdlinepart", NULL
};
349 static struct platform_nand_data svip_flash_nand_data
= {
352 .part_probe_types
= part_probes
,
355 .probe
= svip_nand_probe
,
356 .cmd_ctrl
= svip_nand_hwcontrol
,
357 .dev_ready
= svip_nand_ready
,
358 .write_buf
= svip_nand_write_buf
,
359 .read_buf
= svip_nand_read_buf
,
363 static struct resource svip_nand_resources
[] = {
364 MEM_RES("nand", LTQ_FLASH_START
, LTQ_FLASH_MAX
),
367 static struct platform_device svip_flash_nand
= {
370 .num_resources
= ARRAY_SIZE(svip_nand_resources
),
371 .resource
= svip_nand_resources
,
373 .platform_data
= &svip_flash_nand_data
,
377 void __init
svip_register_nand(void)
379 platform_device_register(&svip_flash_nand
);