diff options
author | Roger Quadros <rogerq@ti.com> | 2015-07-10 08:23:29 -0400 |
---|---|---|
committer | Roger Quadros <rogerq@ti.com> | 2016-04-15 04:51:02 -0400 |
commit | fabe7d7756d17f5da4bd80fa2373c4bd93ed39e5 (patch) | |
tree | 26dfb1b4992f07a7c2ab741b62444894fe677907 | |
parent | 58bc67fc32b1c67fb045f4828a67134dc8fee631 (diff) |
ARM: OMAP2+: gpmc: Add gpmc timings and settings to platform data
Add device_timings, gpmc_timings and gpmc_setting to
gpmc platform data.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
-rw-r--r-- | include/linux/omap-gpmc.h | 139 | ||||
-rw-r--r-- | include/linux/platform_data/gpmc-omap.h | 142 |
2 files changed, 142 insertions, 139 deletions
diff --git a/include/linux/omap-gpmc.h b/include/linux/omap-gpmc.h index 45d9075be1e5..2dcef1c8c8d4 100644 --- a/include/linux/omap-gpmc.h +++ b/include/linux/omap-gpmc.h | |||
@@ -14,145 +14,6 @@ | |||
14 | #define GPMC_IRQ_FIFOEVENTENABLE 0x01 | 14 | #define GPMC_IRQ_FIFOEVENTENABLE 0x01 |
15 | #define GPMC_IRQ_COUNT_EVENT 0x02 | 15 | #define GPMC_IRQ_COUNT_EVENT 0x02 |
16 | 16 | ||
17 | #define GPMC_BURST_4 4 /* 4 word burst */ | ||
18 | #define GPMC_BURST_8 8 /* 8 word burst */ | ||
19 | #define GPMC_BURST_16 16 /* 16 word burst */ | ||
20 | #define GPMC_DEVWIDTH_8BIT 1 /* 8-bit device width */ | ||
21 | #define GPMC_DEVWIDTH_16BIT 2 /* 16-bit device width */ | ||
22 | #define GPMC_MUX_AAD 1 /* Addr-Addr-Data multiplex */ | ||
23 | #define GPMC_MUX_AD 2 /* Addr-Data multiplex */ | ||
24 | |||
25 | /* bool type time settings */ | ||
26 | struct gpmc_bool_timings { | ||
27 | bool cycle2cyclediffcsen; | ||
28 | bool cycle2cyclesamecsen; | ||
29 | bool we_extra_delay; | ||
30 | bool oe_extra_delay; | ||
31 | bool adv_extra_delay; | ||
32 | bool cs_extra_delay; | ||
33 | bool time_para_granularity; | ||
34 | }; | ||
35 | |||
36 | /* | ||
37 | * Note that all values in this struct are in nanoseconds except sync_clk | ||
38 | * (which is in picoseconds), while the register values are in gpmc_fck cycles. | ||
39 | */ | ||
40 | struct gpmc_timings { | ||
41 | /* Minimum clock period for synchronous mode (in picoseconds) */ | ||
42 | u32 sync_clk; | ||
43 | |||
44 | /* Chip-select signal timings corresponding to GPMC_CS_CONFIG2 */ | ||
45 | u32 cs_on; /* Assertion time */ | ||
46 | u32 cs_rd_off; /* Read deassertion time */ | ||
47 | u32 cs_wr_off; /* Write deassertion time */ | ||
48 | |||
49 | /* ADV signal timings corresponding to GPMC_CONFIG3 */ | ||
50 | u32 adv_on; /* Assertion time */ | ||
51 | u32 adv_rd_off; /* Read deassertion time */ | ||
52 | u32 adv_wr_off; /* Write deassertion time */ | ||
53 | u32 adv_aad_mux_on; /* ADV assertion time for AAD */ | ||
54 | u32 adv_aad_mux_rd_off; /* ADV read deassertion time for AAD */ | ||
55 | u32 adv_aad_mux_wr_off; /* ADV write deassertion time for AAD */ | ||
56 | |||
57 | /* WE signals timings corresponding to GPMC_CONFIG4 */ | ||
58 | u32 we_on; /* WE assertion time */ | ||
59 | u32 we_off; /* WE deassertion time */ | ||
60 | |||
61 | /* OE signals timings corresponding to GPMC_CONFIG4 */ | ||
62 | u32 oe_on; /* OE assertion time */ | ||
63 | u32 oe_off; /* OE deassertion time */ | ||
64 | u32 oe_aad_mux_on; /* OE assertion time for AAD */ | ||
65 | u32 oe_aad_mux_off; /* OE deassertion time for AAD */ | ||
66 | |||
67 | /* Access time and cycle time timings corresponding to GPMC_CONFIG5 */ | ||
68 | u32 page_burst_access; /* Multiple access word delay */ | ||
69 | u32 access; /* Start-cycle to first data valid delay */ | ||
70 | u32 rd_cycle; /* Total read cycle time */ | ||
71 | u32 wr_cycle; /* Total write cycle time */ | ||
72 | |||
73 | u32 bus_turnaround; | ||
74 | u32 cycle2cycle_delay; | ||
75 | |||
76 | u32 wait_monitoring; | ||
77 | u32 clk_activation; | ||
78 | |||
79 | /* The following are only on OMAP3430 */ | ||
80 | u32 wr_access; /* WRACCESSTIME */ | ||
81 | u32 wr_data_mux_bus; /* WRDATAONADMUXBUS */ | ||
82 | |||
83 | struct gpmc_bool_timings bool_timings; | ||
84 | }; | ||
85 | |||
86 | /* Device timings in picoseconds */ | ||
87 | struct gpmc_device_timings { | ||
88 | u32 t_ceasu; /* address setup to CS valid */ | ||
89 | u32 t_avdasu; /* address setup to ADV valid */ | ||
90 | /* XXX: try to combine t_avdp_r & t_avdp_w. Issue is | ||
91 | * of tusb using these timings even for sync whilst | ||
92 | * ideally for adv_rd/(wr)_off it should have considered | ||
93 | * t_avdh instead. This indirectly necessitates r/w | ||
94 | * variations of t_avdp as it is possible to have one | ||
95 | * sync & other async | ||
96 | */ | ||
97 | u32 t_avdp_r; /* ADV low time (what about t_cer ?) */ | ||
98 | u32 t_avdp_w; | ||
99 | u32 t_aavdh; /* address hold time */ | ||
100 | u32 t_oeasu; /* address setup to OE valid */ | ||
101 | u32 t_aa; /* access time from ADV assertion */ | ||
102 | u32 t_iaa; /* initial access time */ | ||
103 | u32 t_oe; /* access time from OE assertion */ | ||
104 | u32 t_ce; /* access time from CS asertion */ | ||
105 | u32 t_rd_cycle; /* read cycle time */ | ||
106 | u32 t_cez_r; /* read CS deassertion to high Z */ | ||
107 | u32 t_cez_w; /* write CS deassertion to high Z */ | ||
108 | u32 t_oez; /* OE deassertion to high Z */ | ||
109 | u32 t_weasu; /* address setup to WE valid */ | ||
110 | u32 t_wpl; /* write assertion time */ | ||
111 | u32 t_wph; /* write deassertion time */ | ||
112 | u32 t_wr_cycle; /* write cycle time */ | ||
113 | |||
114 | u32 clk; | ||
115 | u32 t_bacc; /* burst access valid clock to output delay */ | ||
116 | u32 t_ces; /* CS setup time to clk */ | ||
117 | u32 t_avds; /* ADV setup time to clk */ | ||
118 | u32 t_avdh; /* ADV hold time from clk */ | ||
119 | u32 t_ach; /* address hold time from clk */ | ||
120 | u32 t_rdyo; /* clk to ready valid */ | ||
121 | |||
122 | u32 t_ce_rdyz; /* XXX: description ?, or use t_cez instead */ | ||
123 | u32 t_ce_avd; /* CS on to ADV on delay */ | ||
124 | |||
125 | /* XXX: check the possibility of combining | ||
126 | * cyc_aavhd_oe & cyc_aavdh_we | ||
127 | */ | ||
128 | u8 cyc_aavdh_oe;/* read address hold time in cycles */ | ||
129 | u8 cyc_aavdh_we;/* write address hold time in cycles */ | ||
130 | u8 cyc_oe; /* access time from OE assertion in cycles */ | ||
131 | u8 cyc_wpl; /* write deassertion time in cycles */ | ||
132 | u32 cyc_iaa; /* initial access time in cycles */ | ||
133 | |||
134 | /* extra delays */ | ||
135 | bool ce_xdelay; | ||
136 | bool avd_xdelay; | ||
137 | bool oe_xdelay; | ||
138 | bool we_xdelay; | ||
139 | }; | ||
140 | |||
141 | struct gpmc_settings { | ||
142 | bool burst_wrap; /* enables wrap bursting */ | ||
143 | bool burst_read; /* enables read page/burst mode */ | ||
144 | bool burst_write; /* enables write page/burst mode */ | ||
145 | bool device_nand; /* device is NAND */ | ||
146 | bool sync_read; /* enables synchronous reads */ | ||
147 | bool sync_write; /* enables synchronous writes */ | ||
148 | bool wait_on_read; /* monitor wait on reads */ | ||
149 | bool wait_on_write; /* monitor wait on writes */ | ||
150 | u32 burst_len; /* page/burst length */ | ||
151 | u32 device_width; /* device bus width (8 or 16 bit) */ | ||
152 | u32 mux_add_data; /* multiplex address & data */ | ||
153 | u32 wait_pin; /* wait-pin to be used */ | ||
154 | }; | ||
155 | |||
156 | extern int gpmc_calc_timings(struct gpmc_timings *gpmc_t, | 17 | extern int gpmc_calc_timings(struct gpmc_timings *gpmc_t, |
157 | struct gpmc_settings *gpmc_s, | 18 | struct gpmc_settings *gpmc_s, |
158 | struct gpmc_device_timings *dev_t); | 19 | struct gpmc_device_timings *dev_t); |
diff --git a/include/linux/platform_data/gpmc-omap.h b/include/linux/platform_data/gpmc-omap.h index 6804a8b387d7..67ccdb0e1606 100644 --- a/include/linux/platform_data/gpmc-omap.h +++ b/include/linux/platform_data/gpmc-omap.h | |||
@@ -15,10 +15,152 @@ | |||
15 | /* Maximum Number of Chip Selects */ | 15 | /* Maximum Number of Chip Selects */ |
16 | #define GPMC_CS_NUM 8 | 16 | #define GPMC_CS_NUM 8 |
17 | 17 | ||
18 | /* bool type time settings */ | ||
19 | struct gpmc_bool_timings { | ||
20 | bool cycle2cyclediffcsen; | ||
21 | bool cycle2cyclesamecsen; | ||
22 | bool we_extra_delay; | ||
23 | bool oe_extra_delay; | ||
24 | bool adv_extra_delay; | ||
25 | bool cs_extra_delay; | ||
26 | bool time_para_granularity; | ||
27 | }; | ||
28 | |||
29 | /* | ||
30 | * Note that all values in this struct are in nanoseconds except sync_clk | ||
31 | * (which is in picoseconds), while the register values are in gpmc_fck cycles. | ||
32 | */ | ||
33 | struct gpmc_timings { | ||
34 | /* Minimum clock period for synchronous mode (in picoseconds) */ | ||
35 | u32 sync_clk; | ||
36 | |||
37 | /* Chip-select signal timings corresponding to GPMC_CS_CONFIG2 */ | ||
38 | u32 cs_on; /* Assertion time */ | ||
39 | u32 cs_rd_off; /* Read deassertion time */ | ||
40 | u32 cs_wr_off; /* Write deassertion time */ | ||
41 | |||
42 | /* ADV signal timings corresponding to GPMC_CONFIG3 */ | ||
43 | u32 adv_on; /* Assertion time */ | ||
44 | u32 adv_rd_off; /* Read deassertion time */ | ||
45 | u32 adv_wr_off; /* Write deassertion time */ | ||
46 | u32 adv_aad_mux_on; /* ADV assertion time for AAD */ | ||
47 | u32 adv_aad_mux_rd_off; /* ADV read deassertion time for AAD */ | ||
48 | u32 adv_aad_mux_wr_off; /* ADV write deassertion time for AAD */ | ||
49 | |||
50 | /* WE signals timings corresponding to GPMC_CONFIG4 */ | ||
51 | u32 we_on; /* WE assertion time */ | ||
52 | u32 we_off; /* WE deassertion time */ | ||
53 | |||
54 | /* OE signals timings corresponding to GPMC_CONFIG4 */ | ||
55 | u32 oe_on; /* OE assertion time */ | ||
56 | u32 oe_off; /* OE deassertion time */ | ||
57 | u32 oe_aad_mux_on; /* OE assertion time for AAD */ | ||
58 | u32 oe_aad_mux_off; /* OE deassertion time for AAD */ | ||
59 | |||
60 | /* Access time and cycle time timings corresponding to GPMC_CONFIG5 */ | ||
61 | u32 page_burst_access; /* Multiple access word delay */ | ||
62 | u32 access; /* Start-cycle to first data valid delay */ | ||
63 | u32 rd_cycle; /* Total read cycle time */ | ||
64 | u32 wr_cycle; /* Total write cycle time */ | ||
65 | |||
66 | u32 bus_turnaround; | ||
67 | u32 cycle2cycle_delay; | ||
68 | |||
69 | u32 wait_monitoring; | ||
70 | u32 clk_activation; | ||
71 | |||
72 | /* The following are only on OMAP3430 */ | ||
73 | u32 wr_access; /* WRACCESSTIME */ | ||
74 | u32 wr_data_mux_bus; /* WRDATAONADMUXBUS */ | ||
75 | |||
76 | struct gpmc_bool_timings bool_timings; | ||
77 | }; | ||
78 | |||
79 | /* Device timings in picoseconds */ | ||
80 | struct gpmc_device_timings { | ||
81 | u32 t_ceasu; /* address setup to CS valid */ | ||
82 | u32 t_avdasu; /* address setup to ADV valid */ | ||
83 | /* XXX: try to combine t_avdp_r & t_avdp_w. Issue is | ||
84 | * of tusb using these timings even for sync whilst | ||
85 | * ideally for adv_rd/(wr)_off it should have considered | ||
86 | * t_avdh instead. This indirectly necessitates r/w | ||
87 | * variations of t_avdp as it is possible to have one | ||
88 | * sync & other async | ||
89 | */ | ||
90 | u32 t_avdp_r; /* ADV low time (what about t_cer ?) */ | ||
91 | u32 t_avdp_w; | ||
92 | u32 t_aavdh; /* address hold time */ | ||
93 | u32 t_oeasu; /* address setup to OE valid */ | ||
94 | u32 t_aa; /* access time from ADV assertion */ | ||
95 | u32 t_iaa; /* initial access time */ | ||
96 | u32 t_oe; /* access time from OE assertion */ | ||
97 | u32 t_ce; /* access time from CS asertion */ | ||
98 | u32 t_rd_cycle; /* read cycle time */ | ||
99 | u32 t_cez_r; /* read CS deassertion to high Z */ | ||
100 | u32 t_cez_w; /* write CS deassertion to high Z */ | ||
101 | u32 t_oez; /* OE deassertion to high Z */ | ||
102 | u32 t_weasu; /* address setup to WE valid */ | ||
103 | u32 t_wpl; /* write assertion time */ | ||
104 | u32 t_wph; /* write deassertion time */ | ||
105 | u32 t_wr_cycle; /* write cycle time */ | ||
106 | |||
107 | u32 clk; | ||
108 | u32 t_bacc; /* burst access valid clock to output delay */ | ||
109 | u32 t_ces; /* CS setup time to clk */ | ||
110 | u32 t_avds; /* ADV setup time to clk */ | ||
111 | u32 t_avdh; /* ADV hold time from clk */ | ||
112 | u32 t_ach; /* address hold time from clk */ | ||
113 | u32 t_rdyo; /* clk to ready valid */ | ||
114 | |||
115 | u32 t_ce_rdyz; /* XXX: description ?, or use t_cez instead */ | ||
116 | u32 t_ce_avd; /* CS on to ADV on delay */ | ||
117 | |||
118 | /* XXX: check the possibility of combining | ||
119 | * cyc_aavhd_oe & cyc_aavdh_we | ||
120 | */ | ||
121 | u8 cyc_aavdh_oe;/* read address hold time in cycles */ | ||
122 | u8 cyc_aavdh_we;/* write address hold time in cycles */ | ||
123 | u8 cyc_oe; /* access time from OE assertion in cycles */ | ||
124 | u8 cyc_wpl; /* write deassertion time in cycles */ | ||
125 | u32 cyc_iaa; /* initial access time in cycles */ | ||
126 | |||
127 | /* extra delays */ | ||
128 | bool ce_xdelay; | ||
129 | bool avd_xdelay; | ||
130 | bool oe_xdelay; | ||
131 | bool we_xdelay; | ||
132 | }; | ||
133 | |||
134 | #define GPMC_BURST_4 4 /* 4 word burst */ | ||
135 | #define GPMC_BURST_8 8 /* 8 word burst */ | ||
136 | #define GPMC_BURST_16 16 /* 16 word burst */ | ||
137 | #define GPMC_DEVWIDTH_8BIT 1 /* 8-bit device width */ | ||
138 | #define GPMC_DEVWIDTH_16BIT 2 /* 16-bit device width */ | ||
139 | #define GPMC_MUX_AAD 1 /* Addr-Addr-Data multiplex */ | ||
140 | #define GPMC_MUX_AD 2 /* Addr-Data multiplex */ | ||
141 | |||
142 | struct gpmc_settings { | ||
143 | bool burst_wrap; /* enables wrap bursting */ | ||
144 | bool burst_read; /* enables read page/burst mode */ | ||
145 | bool burst_write; /* enables write page/burst mode */ | ||
146 | bool device_nand; /* device is NAND */ | ||
147 | bool sync_read; /* enables synchronous reads */ | ||
148 | bool sync_write; /* enables synchronous writes */ | ||
149 | bool wait_on_read; /* monitor wait on reads */ | ||
150 | bool wait_on_write; /* monitor wait on writes */ | ||
151 | u32 burst_len; /* page/burst length */ | ||
152 | u32 device_width; /* device bus width (8 or 16 bit) */ | ||
153 | u32 mux_add_data; /* multiplex address & data */ | ||
154 | u32 wait_pin; /* wait-pin to be used */ | ||
155 | }; | ||
156 | |||
18 | /* Data for each chip select */ | 157 | /* Data for each chip select */ |
19 | struct gpmc_omap_cs_data { | 158 | struct gpmc_omap_cs_data { |
20 | bool valid; /* data is valid */ | 159 | bool valid; /* data is valid */ |
21 | bool is_nand; /* device within this CS is NAND */ | 160 | bool is_nand; /* device within this CS is NAND */ |
161 | struct gpmc_settings *settings; | ||
162 | struct gpmc_device_timings *device_timings; | ||
163 | struct gpmc_timings *gpmc_timings; | ||
22 | struct platform_device *pdev; /* device within this CS region */ | 164 | struct platform_device *pdev; /* device within this CS region */ |
23 | unsigned int pdata_size; | 165 | unsigned int pdata_size; |
24 | }; | 166 | }; |