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bfea69ad27
Actually the sdram memory on stm32f746 discovery board is micron part MT48LC_4M32_B2B5_6A. This patch does the modification required in the device tree node & driver for the same. Also we are passing here all the timing parameters in terms of clock cycles, so no need to convert time(ns or ms) to cycles. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> cc: Christophe KERELLO <christophe.kerello@st.com>
38 lines
737 B
C
38 lines
737 B
C
#ifndef DT_BINDINGS_STM32_SDRAM_H
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#define DT_BINDINGS_STM32_SDRAM_H
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#define NO_COL_8 0x0
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#define NO_COL_9 0x1
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#define NO_COL_10 0x2
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#define NO_COL_11 0x3
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#define NO_ROW_11 0x0
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#define NO_ROW_12 0x1
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#define NO_ROW_13 0x2
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#define MWIDTH_8 0x0
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#define MWIDTH_16 0x1
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#define MWIDTH_32 0x2
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#define BANKS_2 0x0
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#define BANKS_4 0x1
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#define CAS_1 0x1
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#define CAS_2 0x2
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#define CAS_3 0x3
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#define SDCLK_2 0x2
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#define RD_BURST_EN 0x1
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#define RD_BURST_DIS 0x0
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#define RD_PIPE_DL_0 0x0
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#define RD_PIPE_DL_1 0x1
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#define RD_PIPE_DL_2 0x2
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/* Timing = value +1 cycles */
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#define TMRD_2 (2 - 1)
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#define TXSR_6 (6 - 1)
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#define TRAS_4 (4 - 1)
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#define TRC_6 (6 - 1)
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#define TWR_2 (2 - 1)
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#define TRP_2 (2 - 1)
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#define TRCD_2 (2 - 1)
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#endif
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