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| author | Lokesh Vutla <lokeshvutla@ti.com> | 2016-03-04 10:36:41 -0600 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-03-14 19:18:44 -0400 |
| commit | ef76ebb1ef7b9b4c72c71b003c6617187e4cd7d9 (patch) | |
| tree | a09633f36b04fd5b492c7ad3cc8d677fef540801 /board | |
| parent | 5cd1f6bd7a44e8c3c62a548257bc5ceff61d1691 (diff) | |
| download | u-boot-imx-ef76ebb1ef7b9b4c72c71b003c6617187e4cd7d9.zip u-boot-imx-ef76ebb1ef7b9b4c72c71b003c6617187e4cd7d9.tar.gz u-boot-imx-ef76ebb1ef7b9b4c72c71b003c6617187e4cd7d9.tar.bz2 | |
ARM: keystone2: K2G: Add support for different arm/device speeds
The maximum device and arm speeds can be determined by reading
EFUSE_BOOTROM register. As there is already a framework for reading this
register, adding support for all possible speeds on k2g devices.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'board')
| -rw-r--r-- | board/ti/ks2_evm/board_k2g.c | 50 |
1 files changed, 46 insertions, 4 deletions
diff --git a/board/ti/ks2_evm/board_k2g.c b/board/ti/ks2_evm/board_k2g.c index cdeb056..b62c412 100644 --- a/board/ti/ks2_evm/board_k2g.c +++ b/board/ti/ks2_evm/board_k2g.c @@ -23,22 +23,64 @@ unsigned int external_clk[ext_clk_count] = { [uart_clk] = SYS_CLK, }; -static struct pll_init_data main_pll_config = {MAIN_PLL, 100, 1, 4}; -static struct pll_init_data tetris_pll_config = {TETRIS_PLL, 100, 1, 4}; +static int arm_speeds[DEVSPEED_NUMSPDS] = { + SPD400, + SPD600, + SPD800, + SPD900, + SPD1000, + SPD900, + SPD800, + SPD600, + SPD400, + SPD200, +}; + +static int dev_speeds[DEVSPEED_NUMSPDS] = { + SPD600, + SPD800, + SPD900, + SPD1000, + SPD900, + SPD800, + SPD600, + SPD400, +}; + +static struct pll_init_data main_pll_config[NUM_SPDS] = { + [SPD400] = {MAIN_PLL, 100, 3, 2}, + [SPD600] = {MAIN_PLL, 300, 6, 2}, + [SPD800] = {MAIN_PLL, 200, 3, 2}, + [SPD900] = {TETRIS_PLL, 75, 1, 2}, + [SPD1000] = {TETRIS_PLL, 250, 3, 2}, +}; + +static struct pll_init_data tetris_pll_config[NUM_SPDS] = { + [SPD200] = {TETRIS_PLL, 250, 3, 10}, + [SPD400] = {TETRIS_PLL, 100, 1, 6}, + [SPD600] = {TETRIS_PLL, 100, 1, 4}, + [SPD800] = {TETRIS_PLL, 400, 3, 4}, + [SPD900] = {TETRIS_PLL, 75, 1, 2}, + [SPD1000] = {TETRIS_PLL, 250, 3, 2}, +}; + static struct pll_init_data uart_pll_config = {UART_PLL, 64, 1, 4}; static struct pll_init_data nss_pll_config = {NSS_PLL, 250, 3, 2}; static struct pll_init_data ddr3_pll_config = {DDR3A_PLL, 250, 3, 10}; struct pll_init_data *get_pll_init_data(int pll) { + int speed; struct pll_init_data *data = NULL; switch (pll) { case MAIN_PLL: - data = &main_pll_config; + speed = get_max_dev_speed(dev_speeds); + data = &main_pll_config[speed]; break; case TETRIS_PLL: - data = &tetris_pll_config; + speed = get_max_arm_speed(arm_speeds); + data = &tetris_pll_config[speed]; break; case NSS_PLL: data = &nss_pll_config; |